Tag version 0.6.5-beta

These modes can be used to see the inner workings of colourful artworks that
frequently use "foreground colour, new background, foreground colour",
particularly to show exactly which colours are represented by set or clear
sixels.

One mode renders all characters in white on a black background and the other
mode renders black characters on a white background. The latter could be used
to save ink if the resulting image is printed.

Flash is suppressed in these mono modes, this may or may not change.

.gitignore

@@ -1,6 +1,4 @@
-.qmake.stash
-moc_*
-qrc_*
-*.o
 Makefile
-qteletextmaker
+build*/
+cmake-build-*/
+.idea

CMakeLists.txt

@@ -0,0 +1,60 @@
+cmake_minimum_required(VERSION 3.16.0)
+
+project(qteletextmaker VERSION 1.0.0 LANGUAGES CXX)
+
+set(CMAKE_CXX_STANDARD 17)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+
+set(CMAKE_AUTOMOC ON)
+set(CMAKE_AUTORCC ON)
+set(CMAKE_AUTOUIC ON)
+
+find_package(Qt6 COMPONENTS Core Widgets REQUIRED)
+
+qt_standard_project_setup()
+
+add_subdirectory(src/qteletextdecoder)
+
+file (GLOB SOURCES src/qteletextmaker/*.cpp)
+qt_add_executable(qteletextmaker ${SOURCES} src/qteletextmaker/actionicons.qrc)
+
+target_link_libraries(qteletextmaker PRIVATE qteletextdecoder Qt::Widgets)
+
+set_target_properties(qteletextmaker PROPERTIES
+	WIN32_EXECUTABLE ON
+)
+
+if(UNIX)
+	include(GNUInstallDirs)
+
+	set(BIN_INSTALL_DIR "${CMAKE_INSTALL_BINDIR}")
+	set(DOC_INSTALL_DIR "${CMAKE_INSTALL_DOCDIR}")
+	set(EXAMPLES_INSTALL_DIR "${DOC_INSTALL_DIR}/examples")
+else()
+	set(BIN_INSTALL_DIR ".")
+	set(DOC_INSTALL_DIR ".")
+	set(EXAMPLES_INSTALL_DIR "./examples")
+endif()
+
+install(TARGETS qteletextmaker
+	BUNDLE DESTINATION .
+	RUNTIME DESTINATION ${BIN_INSTALL_DIR}
+)
+
+install(FILES
+	${CMAKE_CURRENT_LIST_DIR}/README.md
+	${CMAKE_CURRENT_LIST_DIR}/LICENSE
+	DESTINATION ${DOC_INSTALL_DIR}
+)
+
+install(DIRECTORY
+	${CMAKE_CURRENT_LIST_DIR}/examples/
+	DESTINATION ${EXAMPLES_INSTALL_DIR}
+)
+
+qt_generate_deploy_app_script(
+	TARGET qteletextmaker
+	FILENAME_VARIABLE deploy_script
+	NO_UNSUPPORTED_PLATFORM_ERROR
+)
+install(SCRIPT ${deploy_script})

README.md

@@ -1,34 +1,47 @@
 # QTeletextMaker
-QTeletextMaker is a teletext page editor in development. It is written in C++ using the Qt 5 widget libraries, and released under the GNU General Public License v3.0
+QTeletextMaker is a teletext page editor with an emphasis on Level 2.5 enhancement editing, released under the GNU General Public License v3.0
+
+It is written in C++ using the Qt 6 widget libraries.
 
 Features
 - Load and save teletext pages in .tti format.
 - Rendering of teletext pages in Levels 1, 1.5, 2.5 and 3.5
 - Rendering of Local Objects and side panels.
+- Import and export of single pages in .t42 format.
+- Export PNG images of teletext pages.
+- Undo and redo of editing actions.
 - Interactive X/26 Local Enhancement Data triplet editor.
 - Editing of X/27/4 and X/27/5 compositional links to enhancement data pages.
 - Palette editor.
 - Configurable zoom.
 - View teletext pages in 4:3, 16:9 pillar-box and 16:9 stretch aspect ratios.
 
-Although designed on and developed for Linux, the Qt 5 libraries are cross platform so a Windows executable can be built. A Windows executable can be found within the "Releases" link, compiled on a Linux host using [MXE](https://github.com/mxe/mxe) based on [these instructions](https://blog.8bitbuddhism.com/2018/08/22/cross-compiling-windows-applications-with-mxe/). After MXE is installed `make qtbase` will be enough to build QTeletextMaker.
+Although designed on and developed for Linux, the Qt libraries are cross platform so a Windows executable can be built. A Windows executable can be found within the "Releases" link, compiled on a Linux host using [MXE](https://github.com/mxe/mxe) based on [these instructions](https://web.archive.org/web/20230606021352/https://blog.8bitbuddhism.com/2018/08/22/cross-compiling-windows-applications-with-mxe/). After MXE is installed `make qt6-qtbase` should build and install the required dependencies to build QTeletextMaker.
 
 ## Building
 ### Linux
-Install the QtCore, QtGui and QtWidgets libraries and build headers, along with the qmake tool. Then type `qmake && make -j3` in a terminal, you can replace -j3 with the number of processor cores used for the compile process.
+Install version 6 of the QtCore, QtGui and QtWidgets libraries and build headers, along with CMake.
 
-The above will place the qteletextmaker executable in the same directory as the source, type `./qteletextmaker` in the terminal to launch. Optionally, type `make install` afterwards to place the executable into /usr/local/bin.
+Change into the source directory and run the following commands. -j8 can be replaced with the number of processor cores used for the compile process
+```
+mkdir build
+cd build
+cmake -DCMAKE_BUILD_TYPE=Release ..
+make -j8
+```
+
+The above should place the qteletextmaker executable into the build directory created by the above commands. Within the build directory type `./qteletextmaker` in the terminal to launch.
+
+Optionally, type `cmake --install .` to place the executable into /usr/local/bin and the example .tti files into /usr/local/share/doc/qteletextmaker.
 
 ## Current limitations
 The following X/26 enhancement triplets are not rendered by the editor, although the list is fully aware of them.
 - Invocation of Objects from POP and GPOP pages.
 - DRCS characters.
-- Modified G0 and G2 character set designation using X/26 triplets with mode 01000.
-- Full screen and full row colours set by Active Objects.
-- Level 3.5 font style: bold, italic and proportional spacing.
+- Proportional font spacing on Level 3.5
 
 ## Using the X/26 triplet editor
-The X/26 triplet editor sorts all the triplet modes available into categories selected by the triplet *type* dropdown on the left. The categories are:
+The X/26 triplet editor sorts all the triplet modes available into categories, which are:
 - Set Active Position
 - Row triplet - full screen and full row colours, address row 0 and DRCS mode
 - Column triplet - non-spacing attributes and overwriting characters
@@ -36,24 +49,20 @@ The X/26 triplet editor sorts all the triplet modes available into categories se
 - Terminator
 - PDC/reserved
 
-Selecting "Set Active Position" or "Terminator" will change the triplet mode immediately, other selections will activate the triplet *mode* dropdown on the right which can be used to then change the triplet mode. Most triplet modes will present varying widgets below which can be used to alter the parameters of the currently selected triplet (e.g. colour or character).
+After selecting the triplet mode the Row and Column spinboxes can then be used to place the Active Position of the selected triplet, whether or not each spinbox can be altered depends on the mode of the selected triplet. As well as the explicit "Set Active Position" triplet that can set both the row and the column, all column triplets can simultaneously set the column of the Active Position. Additionally the Full Row Colour triplet can set the row of the Active Position, with the column always set to 0.
 
-Between the two dropdowns are the Row and Column spinboxes that are used to place the Active Position of the selected triplet, whether or not each spinbox can be altered depends on the mode of the selected triplet. As well as the explicit "Set Active Position" triplet that can set both the row and the column, all column triplets can simultaneously set the column of the Active Position. Additionally the Full Row Colour triplet can set the row of the Active Position, with the column always set to 0.
+Most triplet modes will present varying widgets below which can be used to alter the parameters of the currently selected triplet e.g. colour or character.
 
 By checking "raw values" it is also possible to view and edit the raw Address, Mode and Data numbers of the triplets. When editing triplets this way, remember that address values 0-39 select a column triplet which has one set of modes and address values 40-63 select a row triplet which has a different set of modes.
 
-The full behaviour of X/26 enhancement triplets can be found in section 12.3 of the [Enhanced Teletext specification ETS 300 706](https://web.archive.org/web/20160326062859/https://www.phecap.nl/download/enhenced-teletext-specs.pdf).
+The full behaviour of X/26 enhancement triplets can be found in section 12.3 of the [Enhanced Teletext specification ETS 300 706](https://www.etsi.org/deliver/etsi_en/300700_300799/300706/01.02.01_60/en_300706v010201p.pdf).
 
 ### Setting the Active Position
 The Active Position, whether set explicitly by a "Set Active Position" triplet or by a row or column triplet, can only be moved in screen address order i.e. from left to right within a row and then from top to bottom across rows. In other words:
 - The Active Position can never be moved up to a lesser numbered row.
 - The Active Position can never be moved left *within the same row* to a lesser numbered column, but it can be moved left at the same time as it is moved down to a greater numbered row.
 
-If this rule is not followed then triplets in earlier screen addresses will be ignored.
+If this rule is not followed then triplets in earlier screen addresses will be ignored. Triplets that break this rule will be highlighted red in the X/26 triplet editor.
 
 ### Objects
-"Define ... Object" triplets need to declare that they are in the correct place in the triplet list e.g. if the Define Object triplet is at `d1 t3` in the list then the data field must show `Local: d1 t3`, otherwise the Object won't appear.
-
-Insert and deleting triplets from the list will upset the Object pointers on both "Define" and "Invoke" triplets and will need to be corrected afterwards. A future version of the editor may adjust these pointers automatically.
-
 "Invoke ... Object" triplets must point to a "Define ... Object" of the same type e.g. "Invoke *Active* Object" must point to a "Define *Active* Object", otherwise the Object won't appear.

examples/Level1p5-Defcon.tti

@@ -0,0 +1,23 @@
+PN,11600
+SC,0000
+PS,8000
+CT,8,T
+OL,26,@lD@Ib\UbTXb\ZbT]b\`B]mD@HB{VBsWB{[Bs\B{
+OL,26,AaBRnD@`BraB]oD@HBXVBPWBX[BP\BX`B}pD@Iby
+OL,26,BUbqXbyZbq]byaBruD@KBYLBSRbTVb\ZbT^b\cbY
+OL,26,CdBSvD@JBYKBSLBywD@Fb\JBTKByLBsVB^ZbX[bU
+OL,26,D\bS^bxxD@[bx\bu]bsyD@BbqFbyRbqVbyCC
+OL,3,W    <,,,,,,,,,,,,,,,,,,,,,,,,,,,,,l    
+OL,4,W    5t   xt xt 5 j    
+OL,5,W    5 "         !"/ !"  j    
+OL,6,W    5              j5j    
+OL,7,W    5 `         0`| 0`  j    
+OL,8,W    5'      +' +'  jj    
+OL,9,W    -,,,,,,,,,,,,,,,,,,,,,,,,,,,,,.    
+OL,12,V<,,,,,lR<,,,,,lS<,,,,,lQ<,,,,,lW<,,,,,l
+OL,13,V5jR5 `5jS5xtjQ5xtjW5 `~5 j
+OL,14,V55   jR5 ~75jS5/% jjQ5/% jjW5 #5 j
+OL,15,V5tjR5z? 5jS5 j5jQ5`x~/jW5  5 j
+OL,16,V5|4 jjR5jS5|4 jjQ5?#  jW5  5 j
+OL,17,V5+'jR5   5jS5+'jQ5jW5  5 j
+OL,18,V-,,,,,.R-,,,,,.S-,,,,,.Q-,,,,,.W-,,,,,.

examples/Level3p5-CharDesignation.tti

@@ -0,0 +1,71 @@
+DE,Unlimited character sets with Level 3.5
+PN,19901
+SC,0001
+PS,8000
+CT,8,T
+OL,28,@@@|gpCu_@|wKpZA`UB_GQd^w}ww]_}_wM@D
+OL,28,D@@|g@@pC@|p@@CO|O@pA@\p]@@wAG\gYF@D
+OL,26,@laIA@Bma|mDRdo}eO~fo~gOoayA@BpawXH@Xi`
+OL,26,AYIaZia[Ib]ip^Iq_iq`IrbI~do}eO~fo~gOrA|
+OL,26,BXHPXi`YIaZia[Ib]ip^Iq_iq`IrbI~do}eO~fo~
+OL,26,CgOtawXHRXi`YIaZia[Ib]ip^Iq_iq`IrbI~do}
+OL,26,DeO~fo~gOvA|XhRXi`YIaZia[Ib]ip^Iq_iq`Ir
+OL,26,EbI~do}eO~fo~gOxawXh[Xi`YIaZia[Ib]ip^Iq
+OL,26,F_iq`IrbI~do}eO~fo~gOzA|XhjXi`YIaZia[Ib
+OL,26,G]ip^Iq_iq`IrbI~do}eO~fo~gO|awXhkXi`YIa
+OL,26,HZia[Ib]ip^Iq_iq`IrbI~do}eO~fo~gO~A|XH`
+OL,26,IXi`YIaZia[Ib]ip^Iq_iq`IrbI~do}eO~fo~gO
+OL,26,JhApCCCCCCCCCCCC
+OL,1, Level 3.5 allows unlimited char  F(1/2)
+OL,2, sets using the "Modified G0 and G2     
+OL,3, Character Set Designation" triplet.    
+OL,4,F                       `G0 lvl 1`` -G2`
+OL,5,FLevel 1 with         G ABCD abcd |     
+OL,6,F  Level 1.5 G2 chars                   
+OL,7,F`Char set```` `Bits``  `G0 X/26``` `G2`
+OL,8,FLatin        B0000xxxG                 
+OL,10,FCyrillic 1   B0100000G                 
+OL,11,F  Serbian/Croatian                     
+OL,12,FCyrillic 2   B0100100G                 
+OL,13,F  Russian/Bulgarian                    
+OL,14,FCyrillic 3   B0100101G                 
+OL,15,F  Ukranian                             
+OL,16,FGreek        B0110111G                 
+OL,18,FHebrew       B1010101G                 
+OL,20,FArabic       B1010111G                 
+OL,22,FLatin with   B1000000G                 
+OL,23,F  Arabic G2                            
+PN,19902
+SC,0002
+PS,8000
+CT,8,T
+OL,28,@@@|gpCu_@|wKpZA`UB_GQd^w}ww]_}_wM@D
+OL,28,D@@|g@@pC@|p@@CO|O@pA@\p]@@wAG\gYF@D
+OL,26,@layA@Bma|nD@Ao|BO}Co}DO~Eo~FOoayA@Bpaw
+OL,26,AhQaHH@qD@@H@rA|hQaHHPsD@@HPtawhQaHHRuD@
+OL,26,B@HRvA|hQaHhRwD@@hRxawhQaHh[yD@@h[zA|hQa
+OL,26,CHhj{D@@hj|awhQaHhk}D@@hk~A|hQaHH`D@@H`
+OL,26,DhAp_CxUaHI`Ii`JIaKiaLIbMibNIcOicPIdQid
+OL,26,ERIeSieTIfUifVIgWigXIhYihZIi[ii\Ij]ij^Ik
+OL,26,F_ik`IlailbImcimdIneinfIogioiD@Ao|BO}Co}
+OL,26,GDO~Eo~FOHIpIipJIqKiqLIrMirNIsOisPItQit
+OL,26,HRIuSiuTIvUivVIwWiwXIxYixZIy[iy\Iz]iz^I{
+OL,26,I_i{`I|ai|bI}ci}dI~ei~fIBBBBB
+OL,1, Level 3.5 allows unlimited char  F(2/2)
+OL,2, sets using the "Modified G0 and G2     
+OL,3, Character Set Designation" triplet.    
+OL,4,F`G2``` `G0 from level 1`````````` `NOS`
+OL,5,FL1.5  G@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_
+OL,6,        `abcdefghijklmnopqrstuvwxyz{|}~ 
+OL,7,F`G2``` `G0 from X/26 enhancements``````
+OL,8,FLatin G                                
+OL,10,FCyr 1 CG        CG    C G   C  FGCFC F 
+OL,11,       CG        CG    C G   C  FGCFC   
+OL,12,FCyr 2 CG        CG    C G   C  FGCFC F 
+OL,13,       CG        CG    C G   C  FGCFC   
+OL,14,FCyr 3 CG        CG    C G   C  FGCFC F 
+OL,15,       CG        CG    C G   C  FGCFC   
+OL,16,FGreek G                                
+OL,18,FHebrewG                                
+OL,20,FArabicG                                
+OL,22,FL/AbG2G                                

examples/SidePanels-PriceChop.tti

@@ -0,0 +1,33 @@
+PN,13200
+SC,0000
+PS,8000
+CT,8,T
+OL,28,@@@|H@p_@|wsA@@AfUrLs_w}ww]_}_wM@p
+OL,26,@rD@Ab|BBpKBxLbtsD@BB{CbqJbyKBstD@Db|EBp
+OL,26,AHBxIbtuD@EB{FbqGbyHBswD@AbqLbyxD@Bb|CBp
+OL,26,BJBxKbtyD@CB{DbqIbyJBszD@Eb|FBpGBxHbt{D@
+OL,26,CFB{GBs}aJ@cJhPThr]hP`hre~aI@cI_Cxv]@It
+OL,26,DAipBitCIwGi\iD@@@H@irAiyBIzCirDIyxve@Iy
+OL,26,EAIqCiqDItEipFitGIwiD@@@HAisBIvCipDiyEis
+OL,26,FFiwGi{BBBBBBBBBBB
+OL,1, calls cost #5  WZ`p0ppb`p0pp `p0up`p0pp
+OL,2, 0909 879 0100  WZjp55"jj 1=.(j 15jj 5uz
+OL,3, GB  #9.99 p&p  WZ*  ! ""#!## "#!!""#!% 
+OL,4,                                W Zn,h h
+OL,5,C]Dstart #89 \                  W Zjp"d&
+OL,6,S############                           
+OL,7,                                    LIVE
+OL,8,E]G now at   \                          
+OL,9,Ussssssssssss                           
+OL,10,U+'                           
+OL,11,U^"o]G#3U?\!                            
+OL,12,U   +'                              
+OL,13,U    "o?!                               
+OL,14,Spppppppppppp                           
+OL,15,S+]D^leftS\'                           
+OL,16,S^"o]D24S?\!                            
+OL,17,S   +'                              
+OL,18,S    "o?!                               
+OL,19,S                                       
+OL,21,E]G9ct gold curb chain   9ct gold curb c
+OL,22,C]DNEW BUYER   JOHN london   JANET manch

examples/SubObjects-TeletextStoreBag.tti

@@ -0,0 +1,36 @@
+DE,Parody of Microsoft Store icon
+PN,15400
+SC,0000
+PS,8000
+CT,8,T
+OL,28,@@@|gpCu_@|wKpZA`UB_GdN`M\LXKTJPILXwM@@
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+OL,26,Ahq]pD@ACLN@LPbZQ`OQcOXCOXbRqD@hQarD@hQa
+OL,26,BsD@ACLJcO_COtD@hQdvD@hQdxD@hQdzD@hQd|D@
+OL,26,CACLJBp^CO^Bx}D@hq]~D@hq]D@hq]_Cxu]A@L
+OL,26,DhshXCOxUaACLhshN@LQ@LYCOxUdACL_COiD@ACL
+OL,26,E_COxwhQ`LQaR@MRaS`MSaT@NTaU`NUaV@O
+OL,26,FVaBBBBBBBBBBBB
+OL,1,Twwf$$$                
+OL,2,T==9111                
+OL,3,Twwf$$$FWelcome to the 
+OL,4,T==9111                
+OL,5,Twwf$$$WTELETEXT STORE 
+OL,6,T==9111                
+OL,7,Twwf$$$                
+OL,8,T]           ^xWV]    tW\               
+OL,9,T]           ^WT\wwf$$W               
+OL,10,T]           ^WT\==911W               
+OL,11,T]       V]W                 \        
+OL,12,T]       W]                    \        
+OL,13,T]       W]                    \        
+OL,14,T]       W]Q   RS     \        
+OL,15,T]       W]Q   RS     \        
+OL,16,T]       W]Q                   \        
+OL,17,T]       W]Q  TUV     \        
+OL,18,T]       W]Q  TUV     \        
+OL,19,T]       W]                    \        
+OL,20,T]       Wo]                ^?\         
+OL,21,Twwf$$$                
+OL,22,T==9111                
+OL,23,Twwf$$$                

examples/Template-ActivePosition.tti

@@ -0,0 +1,9 @@
+PN,19900
+SC,0000
+PS,8000
+CT,8,T
+OL,26,@iD@@kfjD@@kfkD@@kflD@@kfmD@@kfnD@@kfoD@
+OL,26,A@kfpD@@kfqD@@kfrD@@kfsD@@kftD@@kfuD@@kf
+OL,26,BvD@@kfwD@@kfxD@@kfyD@@kfzD@@kf{D@@kf|D@
+OL,26,C@kf}D@@kf~D@@kfD@@kfCCCCCC
+OL,1,  Active Position across every row      

keymap.h

@@ -1,545 +0,0 @@
-/*
- * Copyright (C) 2020, 2021 Gavin MacGregor
- *
- * This file is part of QTeletextMaker.
- *
- * QTeletextMaker is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * QTeletextMaker is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with QTeletextMaker.  If not, see <https://www.gnu.org/licenses/>.
- */
-
-#ifndef KEYMAP_H
-#define KEYMAP_H
-
-#include <QMap>
-
-static const QMap<QChar, char> keymapping[24] = {
-	// Only used by X/26 enhancements, not directly by keyboard
-	{ // 0 Latin G0
-	},
-
-	{ // 1 Cyrillic G0 1 Serbian/Croatian
-		{ 0x0427, 0x40 }, // Ч CYRILLIC CAPITAL LETTER CHE
-		{ 0x0410, 0x41 }, // А CYRILLIC CAPITAL LETTER A
-		{ 0x0411, 0x42 }, // Б CYRILLIC CAPITAL LETTER BE
-		{ 0x0426, 0x43 }, // Ц CYRILLIC CAPITAL LETTER TSE
-		{ 0x0414, 0x44 }, // Д CYRILLIC CAPITAL LETTER DE
-		{ 0x0415, 0x45 }, // Е CYRILLIC CAPITAL LETTER IE
-		{ 0x0424, 0x46 }, // Ф CYRILLIC CAPITAL LETTER EF
-		{ 0x0413, 0x47 }, // Г CYRILLIC CAPITAL LETTER GHE
-		{ 0x0425, 0x48 }, // Х CYRILLIC CAPITAL LETTER HA
-		{ 0x0418, 0x49 }, // И CYRILLIC CAPITAL LETTER I
-		{ 0x0408, 0x4a }, // Ј CYRILLIC CAPITAL LETTER JE
-		{ 0x041a, 0x4b }, // К CYRILLIC CAPITAL LETTER KA
-		{ 0x041b, 0x4c }, // Л CYRILLIC CAPITAL LETTER EL
-		{ 0x041c, 0x4d }, // М CYRILLIC CAPITAL LETTER EM
-		{ 0x041d, 0x4e }, // Н CYRILLIC CAPITAL LETTER EN
-		{ 0x041e, 0x4f }, // О CYRILLIC CAPITAL LETTER O
-		{ 0x041f, 0x50 }, // П CYRILLIC CAPITAL LETTER PE
-		{ 0x040c, 0x51 }, // Ќ CYRILLIC CAPITAL LETTER KJE
-		{ 0x0420, 0x52 }, // Р CYRILLIC CAPITAL LETTER ER
-		{ 0x0421, 0x53 }, // С CYRILLIC CAPITAL LETTER ES
-		{ 0x0422, 0x54 }, // Т CYRILLIC CAPITAL LETTER TE
-		{ 0x0423, 0x55 }, // У CYRILLIC CAPITAL LETTER U
-		{ 0x0412, 0x56 }, // В CYRILLIC CAPITAL LETTER VE
-		{ 0x0403, 0x57 }, // Ѓ CYRILLIC CAPITAL LETTER GJE
-		{ 0x0409, 0x58 }, // Љ CYRILLIC CAPITAL LETTER LJE
-		{ 0x040a, 0x59 }, // Њ CYRILLIC CAPITAL LETTER NJE
-		{ 0x0417, 0x5a }, // З CYRILLIC CAPITAL LETTER ZE
-		{ 0x040b, 0x5b }, // Ћ CYRILLIC CAPITAL LETTER TSHE
-		{ 0x0416, 0x5c }, // Ж CYRILLIC CAPITAL LETTER ZHE
-		{ 0x0402, 0x5d }, // Ђ CYRILLIC CAPITAL LETTER DJE
-		{ 0x0428, 0x5e }, // Ш CYRILLIC CAPITAL LETTER SHA
-		{ 0x040f, 0x5f }, // Џ CYRILLIC CAPITAL LETTER DZHE
-		{ 0x0447, 0x60 }, // ч CYRILLIC SMALL LETTER CHE
-		{ 0x0430, 0x61 }, // а CYRILLIC SMALL LETTER A
-		{ 0x0431, 0x62 }, // б CYRILLIC SMALL LETTER BE
-		{ 0x0446, 0x63 }, // ц CYRILLIC SMALL LETTER TSE
-		{ 0x0434, 0x64 }, // д CYRILLIC SMALL LETTER DE
-		{ 0x0435, 0x65 }, // е CYRILLIC SMALL LETTER IE
-		{ 0x0444, 0x66 }, // ф CYRILLIC SMALL LETTER EF
-		{ 0x0433, 0x67 }, // г CYRILLIC SMALL LETTER GHE
-		{ 0x0445, 0x68 }, // х CYRILLIC SMALL LETTER HA
-		{ 0x0438, 0x69 }, // и CYRILLIC SMALL LETTER I
-		{ 0x0458, 0x6a }, // ј CYRILLIC SMALL LETTER JE
-		{ 0x043a, 0x6b }, // к CYRILLIC SMALL LETTER KA
-		{ 0x043b, 0x6c }, // л CYRILLIC SMALL LETTER EL
-		{ 0x043c, 0x6d }, // м CYRILLIC SMALL LETTER EM
-		{ 0x043d, 0x6e }, // н CYRILLIC SMALL LETTER EN
-		{ 0x043e, 0x6f }, // о CYRILLIC SMALL LETTER O
-		{ 0x043f, 0x70 }, // п CYRILLIC SMALL LETTER PE
-		{ 0x045c, 0x71 }, // ќ CYRILLIC SMALL LETTER KJE
-		{ 0x0440, 0x72 }, // р CYRILLIC SMALL LETTER ER
-		{ 0x0441, 0x73 }, // с CYRILLIC SMALL LETTER ES
-		{ 0x0442, 0x74 }, // т CYRILLIC SMALL LETTER TE
-		{ 0x0443, 0x75 }, // у CYRILLIC SMALL LETTER U
-		{ 0x0432, 0x76 }, // в CYRILLIC SMALL LETTER VE
-		{ 0x0453, 0x77 }, // ѓ CYRILLIC SMALL LETTER GJE
-		{ 0x0459, 0x78 }, // љ CYRILLIC SMALL LETTER LJE
-		{ 0x045a, 0x79 }, // њ CYRILLIC SMALL LETTER NJE
-		{ 0x0437, 0x7a }, // з CYRILLIC SMALL LETTER ZE
-		{ 0x045b, 0x7b }, // ћ CYRILLIC SMALL LETTER TSHE
-		{ 0x0436, 0x7c }, // ж CYRILLIC SMALL LETTER ZHE
-		{ 0x0452, 0x7d }, // ђ CYRILLIC SMALL LETTER DJE
-		{ 0x0448, 0x7e }  // ш CYRILLIC SMALL LETTER SHA
-	},
-
-	{ // 2 Cyrillic G0 2 Russian/Bulgarian
-		{ 0x044b, 0x26 }, // ы CYRILLIC SMALL LETTER YERU
-		{ 0x042e, 0x40 }, // Ю CYRILLIC CAPITAL LETTER YU
-		{ 0x0410, 0x41 }, // А CYRILLIC CAPITAL LETTER A
-		{ 0x0411, 0x42 }, // Б CYRILLIC CAPITAL LETTER BE
-		{ 0x0426, 0x43 }, // Ц CYRILLIC CAPITAL LETTER TSE
-		{ 0x0414, 0x44 }, // Д CYRILLIC CAPITAL LETTER DE
-		{ 0x0415, 0x45 }, // Е CYRILLIC CAPITAL LETTER IE
-		{ 0x0424, 0x46 }, // Ф CYRILLIC CAPITAL LETTER EF
-		{ 0x0413, 0x47 }, // Г CYRILLIC CAPITAL LETTER GHE
-		{ 0x0425, 0x48 }, // Х CYRILLIC CAPITAL LETTER HA
-		{ 0x0418, 0x49 }, // И CYRILLIC CAPITAL LETTER I
-		{ 0x0419, 0x4a }, // Й CYRILLIC CAPITAL LETTER SHORT I
-		{ 0x041a, 0x4b }, // К CYRILLIC CAPITAL LETTER KA
-		{ 0x041b, 0x4c }, // Л CYRILLIC CAPITAL LETTER EL
-		{ 0x041c, 0x4d }, // М CYRILLIC CAPITAL LETTER EM
-		{ 0x041d, 0x4e }, // Н CYRILLIC CAPITAL LETTER EN
-		{ 0x041e, 0x4f }, // О CYRILLIC CAPITAL LETTER O
-		{ 0x041f, 0x50 }, // П CYRILLIC CAPITAL LETTER PE
-		{ 0x042f, 0x51 }, // Я CYRILLIC CAPITAL LETTER YA
-		{ 0x0420, 0x52 }, // Р CYRILLIC CAPITAL LETTER ER
-		{ 0x0421, 0x53 }, // С CYRILLIC CAPITAL LETTER ES
-		{ 0x0422, 0x54 }, // Т CYRILLIC CAPITAL LETTER TE
-		{ 0x0423, 0x55 }, // У CYRILLIC CAPITAL LETTER U
-		{ 0x0416, 0x56 }, // Ж CYRILLIC CAPITAL LETTER ZHE
-		{ 0x0412, 0x57 }, // В CYRILLIC CAPITAL LETTER VE
-		{ 0x042c, 0x58 }, // Ь CYRILLIC CAPITAL LETTER SOFT SIGN
-		{ 0x042a, 0x59 }, // Ъ CYRILLIC CAPITAL LETTER HARD SIGN
-		{ 0x0417, 0x5a }, // З CYRILLIC CAPITAL LETTER ZE
-		{ 0x0428, 0x5b }, // Ш CYRILLIC CAPITAL LETTER SHA
-		{ 0x042d, 0x5c }, // Э CYRILLIC CAPITAL LETTER E
-		{ 0x0429, 0x5d }, // Щ CYRILLIC CAPITAL LETTER SHCHA
-		{ 0x0427, 0x5e }, // Ч CYRILLIC CAPITAL LETTER CHE
-		{ 0x042b, 0x5f }, // Ы CYRILLIC CAPITAL LETTER YERU
-		{ 0x044e, 0x60 }, // ю CYRILLIC SMALL LETTER YU
-		{ 0x0430, 0x61 }, // а CYRILLIC SMALL LETTER A
-		{ 0x0431, 0x62 }, // б CYRILLIC SMALL LETTER BE
-		{ 0x0446, 0x63 }, // ц CYRILLIC SMALL LETTER TSE
-		{ 0x0434, 0x64 }, // д CYRILLIC SMALL LETTER DE
-		{ 0x0435, 0x65 }, // е CYRILLIC SMALL LETTER IE
-		{ 0x0444, 0x66 }, // ф CYRILLIC SMALL LETTER EF
-		{ 0x0433, 0x67 }, // г CYRILLIC SMALL LETTER GHE
-		{ 0x0445, 0x68 }, // х CYRILLIC SMALL LETTER HA
-		{ 0x0438, 0x69 }, // и CYRILLIC SMALL LETTER I
-		{ 0x0439, 0x6a }, // й CYRILLIC SMALL LETTER SHORT I
-		{ 0x043a, 0x6b }, // к CYRILLIC SMALL LETTER KA
-		{ 0x043b, 0x6c }, // л CYRILLIC SMALL LETTER EL
-		{ 0x043c, 0x6d }, // м CYRILLIC SMALL LETTER EM
-		{ 0x043d, 0x6e }, // н CYRILLIC SMALL LETTER EN
-		{ 0x043e, 0x6f }, // о CYRILLIC SMALL LETTER O
-		{ 0x043f, 0x70 }, // п CYRILLIC SMALL LETTER PE
-		{ 0x044f, 0x71 }, // я CYRILLIC SMALL LETTER YA
-		{ 0x0440, 0x72 }, // р CYRILLIC SMALL LETTER ER
-		{ 0x0441, 0x73 }, // с CYRILLIC SMALL LETTER ES
-		{ 0x0442, 0x74 }, // т CYRILLIC SMALL LETTER TE
-		{ 0x0443, 0x75 }, // у CYRILLIC SMALL LETTER U
-		{ 0x0436, 0x76 }, // ж CYRILLIC SMALL LETTER ZHE
-		{ 0x0432, 0x77 }, // в CYRILLIC SMALL LETTER VE
-		{ 0x044c, 0x78 }, // ь CYRILLIC SMALL LETTER SOFT SIGN
-		{ 0x044a, 0x79 }, // ъ CYRILLIC SMALL LETTER HARD SIGN
-		{ 0x0437, 0x7a }, // з CYRILLIC SMALL LETTER ZE
-		{ 0x0448, 0x7b }, // ш CYRILLIC SMALL LETTER SHA
-		{ 0x044d, 0x7c }, // э CYRILLIC SMALL LETTER E
-		{ 0x0449, 0x7d }, // щ CYRILLIC SMALL LETTER SHCHA
-		{ 0x0447, 0x7e }  // ч CYRILLIC SMALL LETTER CHE
-	},
-
-	{ // 3 Cyrillic G0 3 Ukranian
-		{ 0x0457, 0x26 }, // ї CYRILLIC SMALL LETTER YI
-		{ 0x042e, 0x40 }, // Ю CYRILLIC CAPITAL LETTER YU
-		{ 0x0410, 0x41 }, // А CYRILLIC CAPITAL LETTER A
-		{ 0x0411, 0x42 }, // Б CYRILLIC CAPITAL LETTER BE
-		{ 0x0426, 0x43 }, // Ц CYRILLIC CAPITAL LETTER TSE
-		{ 0x0414, 0x44 }, // Д CYRILLIC CAPITAL LETTER DE
-		{ 0x0415, 0x45 }, // Е CYRILLIC CAPITAL LETTER IE
-		{ 0x0424, 0x46 }, // Ф CYRILLIC CAPITAL LETTER EF
-		{ 0x0413, 0x47 }, // Г CYRILLIC CAPITAL LETTER GHE
-		{ 0x0425, 0x48 }, // Х CYRILLIC CAPITAL LETTER HA
-		{ 0x0418, 0x49 }, // И CYRILLIC CAPITAL LETTER I
-		{ 0x0419, 0x4a }, // Й CYRILLIC CAPITAL LETTER SHORT I
-		{ 0x041a, 0x4b }, // К CYRILLIC CAPITAL LETTER KA
-		{ 0x041b, 0x4c }, // Л CYRILLIC CAPITAL LETTER EL
-		{ 0x041c, 0x4d }, // М CYRILLIC CAPITAL LETTER EM
-		{ 0x041d, 0x4e }, // Н CYRILLIC CAPITAL LETTER EN
-		{ 0x041e, 0x4f }, // О CYRILLIC CAPITAL LETTER O
-		{ 0x041f, 0x50 }, // П CYRILLIC CAPITAL LETTER PE
-		{ 0x042f, 0x51 }, // Я CYRILLIC CAPITAL LETTER YA
-		{ 0x0420, 0x52 }, // Р CYRILLIC CAPITAL LETTER ER
-		{ 0x0421, 0x53 }, // С CYRILLIC CAPITAL LETTER ES
-		{ 0x0422, 0x54 }, // Т CYRILLIC CAPITAL LETTER TE
-		{ 0x0423, 0x55 }, // У CYRILLIC CAPITAL LETTER U
-		{ 0x0416, 0x56 }, // Ж CYRILLIC CAPITAL LETTER ZHE
-		{ 0x0412, 0x57 }, // В CYRILLIC CAPITAL LETTER VE
-		{ 0x042c, 0x58 }, // Ь CYRILLIC CAPITAL LETTER SOFT SIGN
-		{ 0x0406, 0x59 }, // І CYRILLIC CAPITAL LETTER BYELORUSSIAN-UKRAINIAN I
-		{ 0x0417, 0x5a }, // З CYRILLIC CAPITAL LETTER ZE
-		{ 0x0428, 0x5b }, // Ш CYRILLIC CAPITAL LETTER SHA
-		{ 0x0404, 0x5c }, // Є CYRILLIC CAPITAL LETTER UKRAINIAN IE
-		{ 0x0429, 0x5d }, // Щ CYRILLIC CAPITAL LETTER SHCHA
-		{ 0x0427, 0x5e }, // Ч CYRILLIC CAPITAL LETTER CHE
-		{ 0x0407, 0x5f }, // Ї CYRILLIC CAPITAL LETTER YI
-		{ 0x044e, 0x60 }, // ю CYRILLIC SMALL LETTER YU
-		{ 0x0430, 0x61 }, // а CYRILLIC SMALL LETTER A
-		{ 0x0431, 0x62 }, // б CYRILLIC SMALL LETTER BE
-		{ 0x0446, 0x63 }, // ц CYRILLIC SMALL LETTER TSE
-		{ 0x0434, 0x64 }, // д CYRILLIC SMALL LETTER DE
-		{ 0x0435, 0x65 }, // е CYRILLIC SMALL LETTER IE
-		{ 0x0444, 0x66 }, // ф CYRILLIC SMALL LETTER EF
-		{ 0x0433, 0x67 }, // г CYRILLIC SMALL LETTER GHE
-		{ 0x0445, 0x68 }, // х CYRILLIC SMALL LETTER HA
-		{ 0x0438, 0x69 }, // и CYRILLIC SMALL LETTER I
-		{ 0x0439, 0x6a }, // й CYRILLIC SMALL LETTER SHORT I
-		{ 0x043a, 0x6b }, // к CYRILLIC SMALL LETTER KA
-		{ 0x043b, 0x6c }, // л CYRILLIC SMALL LETTER EL
-		{ 0x043c, 0x6d }, // м CYRILLIC SMALL LETTER EM
-		{ 0x043d, 0x6e }, // н CYRILLIC SMALL LETTER EN
-		{ 0x043e, 0x6f }, // о CYRILLIC SMALL LETTER O
-		{ 0x043f, 0x70 }, // п CYRILLIC SMALL LETTER PE
-		{ 0x044f, 0x71 }, // я CYRILLIC SMALL LETTER YA
-		{ 0x0440, 0x72 }, // р CYRILLIC SMALL LETTER ER
-		{ 0x0441, 0x73 }, // с CYRILLIC SMALL LETTER ES
-		{ 0x0442, 0x74 }, // т CYRILLIC SMALL LETTER TE
-		{ 0x0443, 0x75 }, // у CYRILLIC SMALL LETTER U
-		{ 0x0436, 0x76 }, // ж CYRILLIC SMALL LETTER ZHE
-		{ 0x0432, 0x77 }, // в CYRILLIC SMALL LETTER VE
-		{ 0x044c, 0x78 }, // ь CYRILLIC SMALL LETTER SOFT SIGN
-		{ 0x0456, 0x79 }, // і CYRILLIC SMALL LETTER BYELORUSSIAN-UKRAINIAN I
-		{ 0x0437, 0x7a }, // з CYRILLIC SMALL LETTER ZE
-		{ 0x0448, 0x7b }, // ш CYRILLIC SMALL LETTER SHA
-		{ 0x0454, 0x7c }, // є CYRILLIC SMALL LETTER UKRAINIAN IE
-		{ 0x0449, 0x7d }, // щ CYRILLIC SMALL LETTER SHCHA
-		{ 0x0447, 0x7e }  // ч CYRILLIC SMALL LETTER CHE
-	},
-
-	{ // 4 Greek
-		{ 0x0390, 0x40 }, // ΐ GREEK SMALL LETTER IOTA WITH DIALYTIKA AND TONOS
-		{ 0x0391, 0x41 }, // Α GREEK CAPITAL LETTER ALPHA
-		{ 0x0392, 0x42 }, // Β GREEK CAPITAL LETTER BETA
-		{ 0x0393, 0x43 }, // Γ GREEK CAPITAL LETTER GAMMA
-		{ 0x0394, 0x44 }, // Δ GREEK CAPITAL LETTER DELTA
-		{ 0x0395, 0x45 }, // Ε GREEK CAPITAL LETTER EPSILON
-		{ 0x0396, 0x46 }, // Ζ GREEK CAPITAL LETTER ZETA
-		{ 0x0397, 0x47 }, // Η GREEK CAPITAL LETTER ETA
-		{ 0x0398, 0x48 }, // Θ GREEK CAPITAL LETTER THETA
-		{ 0x0399, 0x49 }, // Ι GREEK CAPITAL LETTER IOTA
-		{ 0x039a, 0x4a }, // Κ GREEK CAPITAL LETTER KAPPA
-		{ 0x039b, 0x4b }, // Λ GREEK CAPITAL LETTER LAMBDA
-		{ 0x039c, 0x4c }, // Μ GREEK CAPITAL LETTER MU
-		{ 0x039d, 0x4d }, // Ν GREEK CAPITAL LETTER NU
-		{ 0x039e, 0x4e }, // Ξ GREEK CAPITAL LETTER XI
-		{ 0x039f, 0x4f }, // Ο GREEK CAPITAL LETTER OMICRON
-		{ 0x03a0, 0x50 }, // Π GREEK CAPITAL LETTER PI
-		{ 0x03a1, 0x51 }, // Ρ GREEK CAPITAL LETTER RHO
-		{ 0x03a3, 0x53 }, // Σ GREEK CAPITAL LETTER SIGMA
-		{ 0x03a4, 0x54 }, // Τ GREEK CAPITAL LETTER TAU
-		{ 0x03a5, 0x55 }, // Υ GREEK CAPITAL LETTER UPSILON
-		{ 0x03a6, 0x56 }, // Φ GREEK CAPITAL LETTER PHI
-		{ 0x03a7, 0x57 }, // Χ GREEK CAPITAL LETTER CHI
-		{ 0x03a8, 0x58 }, // Ψ GREEK CAPITAL LETTER PSI
-		{ 0x03a9, 0x59 }, // Ω GREEK CAPITAL LETTER OMEGA
-		{ 0x03aa, 0x5a }, // Ϊ GREEK CAPITAL LETTER IOTA WITH DIALYTIKA
-		{ 0x03ab, 0x5b }, // Ϋ GREEK CAPITAL LETTER UPSILON WITH DIALYTIKA
-		{ 0x03ac, 0x5c }, // ά GREEK SMALL LETTER ALPHA WITH TONOS
-		{ 0x03ad, 0x5d }, // έ GREEK SMALL LETTER EPSILON WITH TONOS
-		{ 0x03ae, 0x5e }, // ή GREEK SMALL LETTER ETA WITH TONOS
-		{ 0x03af, 0x5f }, // ί GREEK SMALL LETTER IOTO WITH TONOS
-		{ 0x03b0, 0x60 }, // ΰ GREEK SMALL LETTER UPSILON WITH DIALYTIKA AND TONOS
-		{ 0x03b1, 0x61 }, // α GREEK SMALL LETTER ALPHA
-		{ 0x03b2, 0x62 }, // β GREEK SMALL LETTER BETA
-		{ 0x03b3, 0x63 }, // γ GREEK SMALL LETTER GAMMA
-		{ 0x03b4, 0x64 }, // δ GREEK SMALL LETTER DELTA
-		{ 0x03b5, 0x65 }, // ε GREEK SMALL LETTER EPSILON
-		{ 0x03b6, 0x66 }, // ζ GREEK SMALL LETTER ZETA
-		{ 0x03b7, 0x67 }, // η GREEK SMALL LETTER ETA
-		{ 0x03b8, 0x68 }, // θ GREEK SMALL LETTER THETA
-		{ 0x03b9, 0x69 }, // ι GREEK SMALL LETTER IOTA
-		{ 0x03ba, 0x6a }, // κ GREEK SMALL LETTER KAPPA
-		{ 0x03bb, 0x6b }, // λ GREEK SMALL LETTER LAMBDA
-		{ 0x03bc, 0x6c }, // μ GREEK SMALL LETTER MU
-		{ 0x03bd, 0x6d }, // ν GREEK SMALL LETTER NU
-		{ 0x03be, 0x6e }, // ξ GREEK SMALL LETTER XI
-		{ 0x03bf, 0x6f }, // ο GREEK SMALL LETTER OMICRON
-		{ 0x03c0, 0x70 }, // π GREEK SMALL LETTER PI
-		{ 0x03c1, 0x71 }, // ρ GREEK SMALL LETTER RHO
-		{ 0x03c2, 0x72 }, // ς GREEK SMALL LETTER FINAL SIGMA
-		{ 0x03c3, 0x73 }, // σ GREEK SMALL LETTER SIGMA
-		{ 0x03c4, 0x74 }, // τ GREEK SMALL LETTER TAU
-		{ 0x03c5, 0x75 }, // υ GREEK SMALL LETTER UPSILON
-		{ 0x03c6, 0x76 }, // φ GREEK SMALL LETTER PHI
-		{ 0x03c7, 0x77 }, // χ GREEK SMALL LETTER CHI
-		{ 0x03c8, 0x78 }, // ψ GREEK SMALL LETTER PSI
-		{ 0x03c9, 0x79 }, // ω GREEK SMALL LETTER OMEGA
-		{ 0x03ca, 0x7a }, // ϊ GREEK SMALL LETTER IOTA WITH DIALYTIKA
-		{ 0x03cb, 0x7b }, // ϋ GREEK SMALL LETTER UPSILON WITH DIALYTIKA
-		{ 0x03cc, 0x7c }, // ό GREEK SMALL LETTER OMICRON WITH TONOS
-		{ 0x03cd, 0x7d }, // ύ GREEK SMALL LETTER UPSILON WITH TONOS
-		{ 0x03ce, 0x7e }  // ώ GREEK SMALL LETTER OMEGA WITH TONOS
-	},
-
-	{ // TODO 5 Arabic G0
-	},
-
-	{ // 6 Hebrew G0
-		{ 0x05d0, 0x60 }, // א HEBREW LETTER ALEF
-		{ 0x05d1, 0x61 }, // ב HEBREW LETTER BET
-		{ 0x05d2, 0x62 }, // ג HEBREW LETTER GIMEL
-		{ 0x05d3, 0x63 }, // ד HEBREW LETTER DALET
-		{ 0x05d4, 0x64 }, // ה HEBREW LETTER HE
-		{ 0x05d5, 0x65 }, // ו HEBREW LETTER VAV
-		{ 0x05d6, 0x66 }, // ז HEBREW LETTER ZAYIN
-		{ 0x05d7, 0x67 }, // ח HEBREW LETTER HET
-		{ 0x05d8, 0x68 }, // ט HEBREW LETTER TET
-		{ 0x05d9, 0x69 }, // י HEBREW LETTER YOD
-		{ 0x05da, 0x6a }, // ך HEBREW LETTER FINAL KAF
-		{ 0x05db, 0x6b }, // כ HEBREW LETTER KAF
-		{ 0x05dc, 0x6c }, // ל HEBREW LETTER LAMED
-		{ 0x05dd, 0x6d }, // ם HEBREW LETTER FINAL MEM
-		{ 0x05de, 0x6e }, // מ HEBREW LETTER MEM
-		{ 0x05df, 0x6f }, // ן HEBREW LETTER FINAL NUN
-		{ 0x05e0, 0x70 }, // נ HEBREW LETTER NUN
-		{ 0x05e1, 0x71 }, // ס HEBREW LETTER SAMEKH
-		{ 0x05e2, 0x72 }, // ע HEBREW LETTER AYIN
-		{ 0x05e3, 0x73 }, // ף HEBREW LETTER FINAL PE
-		{ 0x05e4, 0x74 }, // פ HEBREW LETTER PE
-		{ 0x05e5, 0x75 }, // ץ HEBREW LETTER FINAL TSADI
-		{ 0x05e6, 0x76 }, // צ HEBREW LETTER TSADI
-		{ 0x05e7, 0x77 }, // ק HEBREW LETTER QOF
-		{ 0x05e8, 0x78 }, // ר HEBREW LETTER RESH
-		{ 0x05e9, 0x79 }, // ש HEBREW LETTER SHIN
-		{ 0x05ea, 0x7a }, // ת HEBREW LETTER TAV
-		{ 0x20aa, 0x7b }, // ₪ NEW SHEQEL SIGN
-		{ 0x00be, 0x7d }, // ½ VULGAR FRACTION THREE QUARTERS
-		{ 0x00f7, 0x7e }  // ÷ DIVISION SIGN
-	},
-
-	// Only used by X/26 enhancements, not directly by keyboard
-	{ // 7 Latin G2
-	},
-	{ // 8 Cyrillic G2
-	},
-	{ // 9 Greek G2
-	},
-	{ // 10 Arabic G2
-	},
-
-	{ // 11 Czech/Slovak
-		{ 0x016f, 0x24 }, // ů LATIN SMALL LETTER U WITH RING ABOVE
-		{ 0x010d, 0x40 }, // č LATIN SMALL LETTER C WITH CARON
-		{ 0x0165, 0x5b }, // ť LATIN SMALL LETTER T WITH CARON
-		{ 0x017e, 0x5c }, // ž LATIN SMALL LETTER Z WITH CARON
-		{ 0x00fd, 0x5d }, // ý LATIN SMALL LETTER Y WITH ACUTE
-		{ 0x00ed, 0x5e }, // í LATIN SMALL LETTER I WITH ACUTE
-		{ 0x0159, 0x5f }, // ř LATIN SMALL LETTER R WITH CARON
-		{ 0x00e9, 0x60 }, // é LATIN SMALL LETTER E WITH ACUTE
-		{ 0x00e1, 0x7b }, // á LATIN SMALL LETTER A WITH ACUTE
-		{ 0x011b, 0x7c }, // ě LATIN SMALL LETTER E WITH CARON
-		{ 0x00fa, 0x7d }, // ú LATIN SMALL LETTER U WITH ACUTE
-		{ 0x0161, 0x7e }  // š LATIN SMALL LETTER S WITH CARON
-	},
-
-	{ // 12 English
-		{ 0x00a3, 0x23 }, // £ POUND SIGN
-		{ 0x0023, 0x5f }, // # NUMBER SIGN
-		{ 0x005f, 0x60 }, // ─ LOW LINE - rendered as U+2500 BOX DRAWINGS LIGHT HORIZONTAL
-
-		{ 0x00bc, 0x7b }, // ¼ VULGAR FRACTION ONE QUARTER
-		{ 0x00bd, 0x5c }, // ½ VULGAR FRACTION ONE HALF
-		{ 0x00be, 0x7b }, // ¾ VULGAR FRACTION THREE QUARTERS
-		{ 0x00f7, 0x7e }  // ÷ DIVISION SIGN
-	},
-
-	{ // 13 Estonian
-		{ 0x00f5, 0x24 }, // õ LATIN SMALL LETTER O WITH TILDE
-		{ 0x0160, 0x40 }, // Š LATIN CAPITAL LETTER S WITH CARON
-		{ 0x00c4, 0x5b }, // Ä LATIN CAPITAL LETTER A WITH DIAERESIS
-		{ 0x00d6, 0x5c }, // Ö LATIN CAPITAL LETTER O WITH DIAERESIS
-		{ 0x017d, 0x5d }, // Ž LATIN CAPITAL LETTER Z WITH CARON
-		{ 0x00dc, 0x5e }, // Ü LATIN CAPITAL LETTER U WITH DIAERESIS
-		{ 0x00d5, 0x5f }, // Õ LATIN CAPITAL LETTER O WITH TILDE
-		{ 0x0161, 0x60 }, // š LATIN SMALL LETTER S WITH CARON
-		{ 0x00e4, 0x7b }, // ä LATIN SMALL LETTER A WITH DIAERESIS
-		{ 0x00f6, 0x7c }, // ö LATIN SMALL LETTER O WITH DIAERESIS
-		{ 0x017e, 0x7d }, // ž LATIN SMALL LETTER Z WITH CARON
-		{ 0x00fc, 0x7e }  // ü LATIN SMALL LETTER U WITH DIAERESIS
-	},
-
-	{ // 14 French - aze qsd wxc
-		{ 0x00e9, 0x23 }, // é LATIN SMALL LETTER E WITH ACUTE
-		{ 0x00ef, 0x24 }, // ï LATIN SMALL LETTER I WITH DIAERESIS
-		{ 0x00e0, 0x40 }, // à LATIN SMALL LETTER A WITH GRAVE
-		{ 0x00eb, 0x5b }, // ë LATIN SMALL LETTER E WITH DIAERESIS
-		{ 0x00ea, 0x5c }, // ê LATIN SMALL LETTER E WITH CIRCUMFLEX
-		{ 0x00f9, 0x5d }, // ù LATIN SMALL LETTER U WITH GRAVE
-		{ 0x00ee, 0x5e }, // î LATIN SMALL LETTER I WITH CIRCUMFLEX
-		{ 0x0023, 0x5f }, // # NUMBER SIGN
-		{ 0x00e8, 0x60 }, // è LATIN SMALL LETTER E WITH GRAVE
-		{ 0x00e2, 0x7b }, // â LATIN SMALL LETTER A WITH CIRCUMFLEX
-		{ 0x00f4, 0x7c }, // ô LATIN SMALL LETTER O WITH CIRCUMFLEX
-		{ 0x00fb, 0x7d }, // û LATIN SMALL LETTER U WITH CIRCUMFLEX
-		{ 0x00e7, 0x7e }  // ç LATIN SMALL LETTER C WITH CEDILLA
-	},
-
-	{ // 15 German
-		{ 0x00a7, 0x40 }, // § SECTION SIGN
-		{ 0x00c4, 0x5b }, // Ä LATIN CAPITAL LETTER A WITH DIAERESIS
-		{ 0x00d6, 0x5c }, // Ö LATIN CAPITAL LETTER O WITH DIAERESIS
-		{ 0x00dc, 0x5d }, // Ü LATIN CAPITAL LETTER U WITH DIAERESIS
-		{ 0x00b0, 0x60 }, // ° DEGREE SIGN
-		{ 0x00e4, 0x7b }, // ä LATIN SMALL LETTER A WITH DIAERESIS
-		{ 0x00f6, 0x7c }, // ö LATIN SMALL LETTER O WITH DIAERESIS
-		{ 0x00fc, 0x7d }, // ü LATIN SMALL LETTER U WITH DIAERESIS
-		{ 0x00df, 0x7e }  // ß LATIN SMALL LETTER SHARP S
-	},
-
-	{ // 16 Italian
-		{ 0x00a3, 0x23 }, // £ POUND SIGN
-		{ 0x00e9, 0x40 }, // é LATIN SMALL LETTER E WITH ACUTE
-		{ 0x00b0, 0x5b }, // ° DEGREE SIGN
-		{ 0x00e7, 0x5c }, // ç LATIN SMALL LETTER C WITH CEDILLA
-		{ 0x0023, 0x5f }, // # NUMBER SIGN
-		{ 0x00f9, 0x60 }, // ù LATIN SMALL LETTER U WITH GRAVE
-		{ 0x00e0, 0x7b }, // à LATIN SMALL LETTER A WITH GRAVE
-		{ 0x00f2, 0x7c }, // ò LATIN SMALL LETTER O WITH GRAVE
-		{ 0x00e8, 0x7d }, // è LATIN SMALL LETTER E WITH GRAVE
-		{ 0x00ec, 0x7e }  // ì LATIN SMALL LETTER I WITH GRAVE
-	},
-
-	{ // 17 Lettish/Lithuanian
-		{ 0x0160, 0x40 }, // Š LATIN CAPITAL LETTER S WITH CARON
-		{ 0x0117, 0x5b }, // ė LATIN SMALL LETTER E WITH DOT ABOVE
-		{ 0x0119, 0x5c }, // ę LATIN SMALL LETTER E WITH OGONEK
-		{ 0x017d, 0x5d }, // Ž LATIN CAPITAL LETTER Z WITH CARON
-		{ 0x010d, 0x5e }, // č LATIN SMALL LETTER C WITH CARON
-		{ 0x016b, 0x5f }, // ū LATIN SMALL LETTER U WITH MACRON
-		{ 0x0161, 0x60 }, // š LATIN SMALL LETTER S WITH CARON
-		{ 0x0105, 0x7b }, // ą LATIN SMALL LETTER A WITH OGONEK
-		{ 0x0173, 0x7c }, // ų LATIN SMALL LETTER U WITH OGONEK
-		{ 0x017e, 0x7d }, // ž LATIN SMALL LETTER Z WITH CARON
-		{ 0x012f, 0x7e }  // į LATIN SMALL LETTER I WITH OGONEK
-	},
-
-	{ // 18 Polish
-		{ 0x0144, 0x24 }, // ń LATIN SMALL LETTER N WITH ACUTE
-		{ 0x0105, 0x40 }, // ą LATIN SMALL LETTER A WITH OGONEK
-		{ 0x017b, 0x5b }, // Ż LATIN CAPITAL LETTER Z WITH DOT ABOVE - rendered as U+01B5 ...WITH STROKE
-		{ 0x015a, 0x5c }, // Ś LATIN CAPITAL LETTER S WITH ACUTE
-		{ 0x0141, 0x5d }, // Ł LATIN CAPITAL LETTER L WITH STROKE
-		{ 0x0107, 0x5e }, // ć LATIN SMALL LETTER C WITH ACUTE
-		{ 0x00f3, 0x5f }, // ó LATIN SMALL LETTER O WITH ACUTE
-		{ 0x0119, 0x60 }, // ę LATIN SMALL LETTER E WITH OGONEK
-		{ 0x017c, 0x7b }, // ż LATIN SMALL LETTER Z WITH DOT ABOVE
-		{ 0x015b, 0x7c }, // ś LATIN SMALL LETTER S WITH ACUTE
-		{ 0x0142, 0x7d }, // ł LATIN SMALL LETTER L WITH STROKE
-		{ 0x017a, 0x7e }  // ź LATIN SMALL LETTER Z WITH ACUTE
-	},
-
-	{ // 19 Portuguese/Spanish
-		{ 0x00e7, 0x23 }, // ç LATIN SMALL LETTER C WITH CEDILLA
-		{ 0x00a1, 0x40 }, // ¡ INVERTED EXCLAMATION MARK
-		{ 0x00e1, 0x5b }, // á LATIN SMALL LETTER A WITH ACUTE
-		{ 0x00e9, 0x5c }, // é LATIN SMALL LETTER E WITH ACUTE
-		{ 0x00ed, 0x5d }, // í LATIN SMALL LETTER I WITH ACUTE
-		{ 0x00f3, 0x5e }, // ó LATIN SMALL LETTER O WITH ACUTE
-		{ 0x00fa, 0x5f }, // ú LATIN SMALL LETTER U WITH ACUTE
-		{ 0x00bf, 0x60 }, // ¿ INVERTED QUESTION MARK
-		{ 0x00fc, 0x7b }, // ü LATIN SMALL LETTER U WITH DIAERESIS
-		{ 0x00f1, 0x7c }, // ñ LATIN SMALL LETTER N WITH TILDE
-		{ 0x00e8, 0x7d }, // è LATIN SMALL LETTER E WITH GRAVE
-		{ 0x00e0, 0x7e }  // à LATIN SMALL LETTER A WITH GRAVE
-	},
-
-	{ // 20 Rumanian
-		{ 0x00a4, 0x24 }, // ¤ CURRENCY SIGN
-		{ 0x021a, 0x40 }, // Ț LATIN CAPITAL LETTER T WITH COMMA BELOW
-		{ 0x00c2, 0x5b }, // Â LATIN CAPITAL LETTER A WITH CIRCUMFLEX
-		{ 0x0218, 0x5c }, // Ș LATIN CAPITAL LETTER S WITH COMMA BELOW
-		{ 0x0102, 0x5d }, // Ă LATIN CAPITAL LETTER A WITH BREVE
-		{ 0x00c3, 0x5e }, // Î LATIN CAPITAL LETTER I WITH CIRCUMFLEX
-		{ 0x0131, 0x5f }, // ı LATIN SMALL LETTER DOTLESS I
-		{ 0x021b, 0x60 }, // ț LATIN SMALL LETTER T WITH COMMA BELOW
-		{ 0x00e2, 0x7b }, // â LATIN SMALL LETTER A WITH CIRCUMFLEX
-		{ 0x0219, 0x7c }, // ș LATIN SMALL LETTER S WITH COMMA BELOW
-		{ 0x0103, 0x7d }, // ă LATIN SMALL LETTER A WITH BREVE
-		{ 0x00ee, 0x7e }  // î LATIN SMALL LETTER I WITH CIRCUMFLEX
-	},
-
-	{ // 21 Serbian/Croatian/Slovenian
-		{ 0x00cb, 0x24 }, // Ë LATIN CAPITAL LETTER E WITH DIAERESIS
-		{ 0x010c, 0x40 }, // Č LATIN CAPITAL LETTER C WITH CARON
-		{ 0x0106, 0x5b }, // Ć LATIN CAPITAL LETTER C WITH ACUTE
-		{ 0x017d, 0x5c }, // Ž LATIN CAPITAL LETTER Z WITH CARON
-		{ 0x0110, 0x5d }, // Đ LATIN CAPITAL LETTER D WITH STROKE
-		{ 0x0160, 0x5e }, // Š LATIN CAPITAL LETTER S WITH CARON
-		{ 0x00eb, 0x5f }, // ë LATIN SMALL LETTER E WITH DIAERESIS
-		{ 0x010d, 0x60 }, // č LATIN SMALL LETTER C WITH CARON
-		{ 0x0107, 0x7b }, // ć LATIN SMALL LETTER C WITH ACUTE
-		{ 0x017e, 0x7c }, // ž LATIN SMALL LETTER Z WITH CARON
-		{ 0x0111, 0x7d }, // đ LATIN SMALL LETTER D WITH STROKE
-		{ 0x0161, 0x7e }  // š LATIN SMALL LETTER S WITH CARON
-	},
-
-	{ // 22 Swedish/Finnish/Hungarian
-		{ 0x00a4, 0x24 }, // ¤ CURRENCY SIGN
-		{ 0x00c9, 0x40 }, // É LATIN CAPITAL LETTER E WITH ACUTE
-		{ 0x00c4, 0x5b }, // Ä LATIN CAPITAL LETTER A WITH DIAERESIS
-		{ 0x00d6, 0x5c }, // Ö LATIN CAPITAL LETTER O WITH DIAERESIS
-		{ 0x00c5, 0x5d }, // Å LATIN CAPITAL LETTER A WITH RING ABOVE
-		{ 0x00dc, 0x5e }, // Ü LATIN CAPITAL LETTER U WITH DIAERESIS
-		{ 0x00e9, 0x60 }, // é LATIN SMALL LETTER E WITH ACUTE
-		{ 0x00e4, 0x7b }, // ä LATIN SMALL LETTER A WITH DIAERESIS
-		{ 0x00f6, 0x7c }, // ö LATIN SMALL LETTER O WITH DIAERESIS
-		{ 0x00e5, 0x7d }, // å LATIN SMALL LETTER A WITH RING ABOVE
-		{ 0x00fc, 0x7e }  // ü LATIN SMALL LETTER U WITH DIAERESIS
-	},
-
-	{ // 23 Turkish
-		{ 0x20ba, 0x23 }, // ₺ TURKISH LIRA SIGN
-		{ 0x011f, 0x24 }, // ğ LATIN SMALL LETTER G WITH BREVE
-		{ 0x0130, 0x40 }, // İ LATIN CAPITAL LETTER I WITH DOT ABOVE
-		{ 0x015e, 0x5b }, // Ş LATIN CAPITAL LETTER S WITH CEDILLA
-		{ 0x00d6, 0x5c }, // Ö LATIN CAPITAL LETTER O WITH DIAERESIS
-		{ 0x00c7, 0x5d }, // Ç LATIN CAPITAL LETTER C WITH CEDILLA
-		{ 0x00dc, 0x5e }, // Ü LATIN CAPITAL LETTER U WITH DIAERESIS
-		{ 0x011e, 0x5f }, // Ğ LATIN CAPITAL LETTER G WITH BREVE
-		{ 0x0131, 0x60 }, // ı LATIN SMALL LETTER DOTLESS I
-		{ 0x015f, 0x7b }, // ş LATIN SMALL LETTER S WITH CEDILLA
-		{ 0x00f6, 0x7c }, // ö LATIN SMALL LETTER O WITH DIAERESIS
-		{ 0x00e7, 0x7d }, // ç LATIN SMALL LETTER C WITH CEDILLA
-		{ 0x00fc, 0x7e }  // ü LATIN SMALL LETTER U WITH DIAERESIS
-	}
-};
-
-
-// Native scan codes to toggle mosaic bits - different platforms have different scan codes!
-// Order is top left, top right, middle left, middle right, bottom left, bottom right,
-// invert, set all, clear all
-
-#ifdef Q_OS_UNIX
-static constexpr quint32 mosaicNativeScanCodes[9] = {
-	0x18, 0x19, 0x26, 0x27, 0x34, 0x35, 0x1b, 0x29, 0x36
-};
-#elif defined(Q_OS_WIN)
-static constexpr quint32 mosaicNativeScanCodes[9] = {
-	0x10, 0x11, 0x1e, 0x1f, 0x2c, 0x2d, 0x13, 0x21, 0x2e
-};
-#else
-#define QTTM_NONATIVESCANCODES
-#endif
-
-#endif

levelonecommands.cpp

@@ -1,465 +0,0 @@
-/*
- * Copyright (C) 2020, 2021 Gavin MacGregor
- *
- * This file is part of QTeletextMaker.
- *
- * QTeletextMaker is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * QTeletextMaker is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with QTeletextMaker.  If not, see <https://www.gnu.org/licenses/>.
- */
-
-#include "levelonecommands.h"
-
-#include "document.h"
-
-TypeCharacterCommand::TypeCharacterCommand(TeletextDocument *teletextDocument, unsigned char newCharacter, bool insertMode, QUndoCommand *parent) : QUndoCommand(parent)
-{
-	m_teletextDocument = teletextDocument;
-	m_subPageIndex = teletextDocument->currentSubPageIndex();
-	m_row = teletextDocument->cursorRow();
-	m_columnStart = m_columnEnd = teletextDocument->cursorColumn();
-	m_newCharacter = newCharacter;
-	m_insertMode = insertMode;
-
-	for (int c=0; c<40; c++)
-		m_oldRowContents[c] = m_newRowContents[c] = m_teletextDocument->currentSubPage()->character(m_row, c);
-
-	if (m_insertMode)
-		setText(QObject::tr("insert character"));
-	else
-		setText(QObject::tr("overwrite character"));
-	m_firstDo = true;
-}
-
-void TypeCharacterCommand::redo()
-{
-	m_teletextDocument->selectSubPageIndex(m_subPageIndex);
-
-	// Only apply the typed character on the first do, m_newRowContents will remember it if we redo
-	if (m_firstDo) {
-		if (m_insertMode) {
-			// Insert - Move characters rightwards
-			for (int c=39; c>m_columnEnd; c--)
-				m_newRowContents[c] = m_newRowContents[c-1];
-		}
-		m_newRowContents[m_columnEnd] = m_newCharacter;
-		m_firstDo = false;
-	}
-	for (int c=0; c<40; c++)
-		m_teletextDocument->currentSubPage()->setCharacter(m_row, c, m_newRowContents[c]);
-
-	m_teletextDocument->moveCursor(m_row, m_columnEnd);
-	m_teletextDocument->cursorRight();
-	emit m_teletextDocument->contentsChange(m_row);
-}
-
-void TypeCharacterCommand::undo()
-{
-	m_teletextDocument->selectSubPageIndex(m_subPageIndex);
-
-	for (int c=0; c<40; c++)
-		m_teletextDocument->currentSubPage()->setCharacter(m_row, c, m_oldRowContents[c]);
-
-	m_teletextDocument->moveCursor(m_row, m_columnStart);
-	emit m_teletextDocument->contentsChange(m_row);
-}
-
-bool TypeCharacterCommand::mergeWith(const QUndoCommand *command)
-{
-	const TypeCharacterCommand *newerCommand = static_cast<const TypeCharacterCommand *>(command);
-
-	// Has to be the next typed column on the same row
-	if (m_subPageIndex != newerCommand->m_subPageIndex || m_row != newerCommand->m_row || m_columnEnd != newerCommand->m_columnEnd-1)
-		return false;
-
-	m_columnEnd = newerCommand->m_columnEnd;
-	for (int c=0; c<40; c++)
-		m_newRowContents[c] = newerCommand->m_newRowContents[c];
-
-	return true;
-}
-
-
-ToggleMosaicBitCommand::ToggleMosaicBitCommand(TeletextDocument *teletextDocument, unsigned char bitToToggle, QUndoCommand *parent) : QUndoCommand(parent)
-{
-	m_teletextDocument = teletextDocument;
-	m_subPageIndex = teletextDocument->currentSubPageIndex();
-	m_row = teletextDocument->cursorRow();
-	m_column = teletextDocument->cursorColumn();
-	m_oldCharacter = teletextDocument->currentSubPage()->character(m_row, m_column);
-	if (bitToToggle == 0x20 || bitToToggle == 0x7f)
-		m_newCharacter = bitToToggle;
-	else
-		m_newCharacter = m_oldCharacter ^ bitToToggle;
-
-	setText(QObject::tr("mosaic"));
-
-}
-
-void ToggleMosaicBitCommand::redo()
-{
-	m_teletextDocument->selectSubPageIndex(m_subPageIndex);
-	m_teletextDocument->currentSubPage()->setCharacter(m_row, m_column, m_newCharacter);
-
-	m_teletextDocument->moveCursor(m_row, m_column);
-	emit m_teletextDocument->contentsChange(m_row);
-}
-
-void ToggleMosaicBitCommand::undo()
-{
-	m_teletextDocument->selectSubPageIndex(m_subPageIndex);
-	m_teletextDocument->currentSubPage()->setCharacter(m_row, m_column, m_oldCharacter);
-
-	m_teletextDocument->moveCursor(m_row, m_column);
-	emit m_teletextDocument->contentsChange(m_row);
-}
-
-bool ToggleMosaicBitCommand::mergeWith(const QUndoCommand *command)
-{
-	const ToggleMosaicBitCommand *newerCommand = static_cast<const ToggleMosaicBitCommand *>(command);
-
-	if (m_subPageIndex != newerCommand->m_subPageIndex || m_row != newerCommand->m_row || m_column != newerCommand->m_column)
-		return false;
-	m_newCharacter = newerCommand->m_newCharacter;
-	return true;
-}
-
-
-BackspaceKeyCommand::BackspaceKeyCommand(TeletextDocument *teletextDocument, bool insertMode, QUndoCommand *parent) : QUndoCommand(parent)
-{
-	m_teletextDocument = teletextDocument;
-	m_subPageIndex = teletextDocument->currentSubPageIndex();
-	m_row = teletextDocument->cursorRow();
-	m_columnStart = teletextDocument->cursorColumn()-1;
-	if (m_columnStart == -1) {
-		m_columnStart = 39;
-		if (--m_row == 0)
-			m_row = 24;
-	}
-	m_columnEnd = m_columnStart;
-	m_insertMode = insertMode;
-
-	for (int c=0; c<40; c++)
-		m_oldRowContents[c] = m_newRowContents[c] = m_teletextDocument->currentSubPage()->character(m_row, c);
-
-	setText(QObject::tr("backspace"));
-	m_firstDo = true;
-}
-
-void BackspaceKeyCommand::redo()
-{
-	m_teletextDocument->selectSubPageIndex(m_subPageIndex);
-
-	if (m_firstDo) {
-		if (m_insertMode) {
-			// Insert - Move characters leftwards and put a space on the far right
-			for (int c=m_columnEnd; c<39; c++)
-				m_newRowContents[c] = m_newRowContents[c+1];
-			m_newRowContents[39] = 0x20;
-		} else
-			// Replace - Overwrite backspaced character with a space
-			m_newRowContents[m_columnEnd] = 0x20;
-		m_firstDo = false;
-	}
-
-	for (int c=0; c<40; c++)
-		m_teletextDocument->currentSubPage()->setCharacter(m_row, c, m_newRowContents[c]);
-
-	m_teletextDocument->moveCursor(m_row, m_columnEnd);
-	emit m_teletextDocument->contentsChange(m_row);
-}
-
-void BackspaceKeyCommand::undo()
-{
-	m_teletextDocument->selectSubPageIndex(m_subPageIndex);
-
-	for (int c=0; c<40; c++)
-		m_teletextDocument->currentSubPage()->setCharacter(m_row, c, m_oldRowContents[c]);
-
-	m_teletextDocument->moveCursor(m_row, m_columnStart);
-	m_teletextDocument->cursorRight();
-	emit m_teletextDocument->contentsChange(m_row);
-}
-
-bool BackspaceKeyCommand::mergeWith(const QUndoCommand *command)
-{
-	const BackspaceKeyCommand *newerCommand = static_cast<const BackspaceKeyCommand *>(command);
-
-	// Has to be the next backspaced column on the same row
-	if (m_subPageIndex != newerCommand->m_subPageIndex || m_row != newerCommand->m_row || m_columnEnd != newerCommand->m_columnEnd+1)
-		return false;
-
-	// For backspacing m_columnStart is where we began backspacing and m_columnEnd is where we ended backspacing
-	// so m_columnEnd will be less than m_columnStart
-	m_columnEnd = newerCommand->m_columnEnd;
-	for (int c=0; c<40; c++)
-		m_newRowContents[c] = newerCommand->m_newRowContents[c];
-
-	return true;
-}
-
-
-DeleteKeyCommand::DeleteKeyCommand(TeletextDocument *teletextDocument, QUndoCommand *parent) : QUndoCommand(parent)
-{
-	m_teletextDocument = teletextDocument;
-	m_subPageIndex = teletextDocument->currentSubPageIndex();
-	m_row = teletextDocument->cursorRow();
-	m_column = teletextDocument->cursorColumn();
-
-	for (int c=0; c<40; c++)
-		m_oldRowContents[c] = m_newRowContents[c] = m_teletextDocument->currentSubPage()->character(m_row, c);
-
-	setText(QObject::tr("delete"));
-}
-
-void DeleteKeyCommand::redo()
-{
-	m_teletextDocument->selectSubPageIndex(m_subPageIndex);
-
-	// Move characters leftwards and put a space on the far right
-	for (int c=m_column; c<39; c++)
-		m_newRowContents[c] = m_newRowContents[c+1];
-	m_newRowContents[39] = 0x20;
-
-	for (int c=0; c<40; c++)
-		m_teletextDocument->currentSubPage()->setCharacter(m_row, c, m_newRowContents[c]);
-
-	m_teletextDocument->moveCursor(m_row, m_column);
-	emit m_teletextDocument->contentsChange(m_row);
-}
-
-void DeleteKeyCommand::undo()
-{
-	m_teletextDocument->selectSubPageIndex(m_subPageIndex);
-
-	for (int c=0; c<40; c++)
-		m_teletextDocument->currentSubPage()->setCharacter(m_row, c, m_oldRowContents[c]);
-
-	m_teletextDocument->moveCursor(m_row, m_column);
-	emit m_teletextDocument->contentsChange(m_row);
-}
-
-bool DeleteKeyCommand::mergeWith(const QUndoCommand *command)
-{
-	const DeleteKeyCommand *newerCommand = static_cast<const DeleteKeyCommand *>(command);
-
-	if (m_subPageIndex != newerCommand->m_subPageIndex || m_row != newerCommand->m_row || m_column != newerCommand->m_column)
-		return false;
-
-	for (int c=0; c<40; c++)
-		m_newRowContents[c] = newerCommand->m_newRowContents[c];
-
-	return true;
-}
-
-
-InsertRowCommand::InsertRowCommand(TeletextDocument *teletextDocument, bool copyRow, QUndoCommand *parent) : QUndoCommand(parent)
-{
-	m_teletextDocument = teletextDocument;
-	m_subPageIndex = teletextDocument->currentSubPageIndex();
-	m_row = teletextDocument->cursorRow();
-	m_copyRow = copyRow;
-
-	if (m_copyRow)
-		setText(QObject::tr("insert copy row"));
-	else
-		setText(QObject::tr("insert blank row"));
-}
-
-void InsertRowCommand::redo()
-{
-	m_teletextDocument->selectSubPageIndex(m_subPageIndex);
-	m_teletextDocument->moveCursor(m_row, -1);
-	// Store copy of the bottom row we're about to push out, for undo
-	for (int c=0; c<40; c++)
-		m_deletedBottomRow[c] = m_teletextDocument->currentSubPage()->character(23, c);
-	// Move lines below the inserting row downwards without affecting the FastText row
-	for (int r=22; r>=m_row; r--)
-		for (int c=0; c<40; c++)
-			m_teletextDocument->currentSubPage()->setCharacter(r+1, c, m_teletextDocument->currentSubPage()->character(r, c));
-	if (!m_copyRow)
-		// The above movement leaves a duplicate of the current row, so blank it if requested
-		for (int c=0; c<40; c++)
-			m_teletextDocument->currentSubPage()->setCharacter(m_row, c, ' ');
-
-	emit m_teletextDocument->refreshNeeded();
-}
-
-void InsertRowCommand::undo()
-{
-	m_teletextDocument->selectSubPageIndex(m_subPageIndex);
-	m_teletextDocument->moveCursor(m_row, -1);
-	// Move lines below the deleting row upwards without affecting the FastText row
-	for (int r=m_row; r<23; r++)
-		for (int c=0; c<40; c++)
-			m_teletextDocument->currentSubPage()->setCharacter(r, c, m_teletextDocument->currentSubPage()->character(r+1, c));
-	// Now repair the bottom row we pushed out
-	for (int c=0; c<40; c++)
-		m_teletextDocument->currentSubPage()->setCharacter(23, c, m_deletedBottomRow[c]);
-
-	emit m_teletextDocument->refreshNeeded();
-}
-
-
-DeleteRowCommand::DeleteRowCommand(TeletextDocument *teletextDocument, QUndoCommand *parent) : QUndoCommand(parent)
-{
-	m_teletextDocument = teletextDocument;
-	m_subPageIndex = teletextDocument->currentSubPageIndex();
-	m_row = teletextDocument->cursorRow();
-
-	setText(QObject::tr("delete row"));
-}
-
-void DeleteRowCommand::redo()
-{
-	m_teletextDocument->selectSubPageIndex(m_subPageIndex);
-	m_teletextDocument->moveCursor(m_row, -1);
-	// Store copy of the row we're going to delete, for undo
-	for (int c=0; c<40; c++)
-		m_deletedRow[c] = m_teletextDocument->currentSubPage()->character(m_row, c);
-	// Move lines below the deleting row upwards without affecting the FastText row
-	for (int r=m_row; r<23; r++)
-		for (int c=0; c<40; c++)
-			m_teletextDocument->currentSubPage()->setCharacter(r, c, m_teletextDocument->currentSubPage()->character(r+1, c));
-	// If we deleted the FastText row blank that row, otherwise blank the last row
-	int blankingRow = (m_row < 24) ? 23 : 24;
-		for (int c=0; c<40; c++)
-			m_teletextDocument->currentSubPage()->setCharacter(blankingRow, c, ' ');
-
-	emit m_teletextDocument->refreshNeeded();
-}
-
-void DeleteRowCommand::undo()
-{
-	m_teletextDocument->selectSubPageIndex(m_subPageIndex);
-	m_teletextDocument->moveCursor(m_row, -1);
-	// Move lines below the inserting row downwards without affecting the FastText row
-	for (int r=22; r>=m_row; r--)
-		for (int c=0; c<40; c++)
-			m_teletextDocument->currentSubPage()->setCharacter(r+1, c, m_teletextDocument->currentSubPage()->character(r, c));
-	// Now repair the row we deleted
-	for (int c=0; c<40; c++)
-		m_teletextDocument->currentSubPage()->setCharacter(m_row, c, m_deletedRow[c]);
-
-	emit m_teletextDocument->refreshNeeded();
-}
-
-
-InsertSubPageCommand::InsertSubPageCommand(TeletextDocument *teletextDocument, bool afterCurrentSubPage, bool copySubPage, QUndoCommand *parent) : QUndoCommand(parent)
-{
-	m_teletextDocument = teletextDocument;
-	m_newSubPageIndex = teletextDocument->currentSubPageIndex()+afterCurrentSubPage;
-	m_copySubPage = copySubPage;
-
-	setText(QObject::tr("insert subpage"));
-
-}
-
-void InsertSubPageCommand::redo()
-{
-	m_teletextDocument->insertSubPage(m_newSubPageIndex, m_copySubPage);
-
-	m_teletextDocument->selectSubPageIndex(m_newSubPageIndex, true);
-}
-
-void InsertSubPageCommand::undo()
-{
-	m_teletextDocument->deleteSubPage(m_newSubPageIndex);
-	//TODO should we always wrench to "subpage viewed when we inserted"? Or just if subpage viewed is being deleted?
-
-	m_teletextDocument->selectSubPageIndex(qMin(m_newSubPageIndex, m_teletextDocument->numberOfSubPages()-1), true);
-}
-
-
-DeleteSubPageCommand::DeleteSubPageCommand(TeletextDocument *teletextDocument, QUndoCommand *parent) : QUndoCommand(parent)
-{
-	m_teletextDocument = teletextDocument;
-	m_subPageToDelete = teletextDocument->currentSubPageIndex();
-	setText(QObject::tr("delete subpage"));
-}
-
-void DeleteSubPageCommand::redo()
-{
-	m_teletextDocument->deleteSubPageToRecycle(m_subPageToDelete);
-	m_teletextDocument->selectSubPageIndex(qMin(m_subPageToDelete, m_teletextDocument->numberOfSubPages()-1), true);
-}
-
-void DeleteSubPageCommand::undo()
-{
-	m_teletextDocument->unDeleteSubPageFromRecycle(m_subPageToDelete);
-	m_teletextDocument->selectSubPageIndex(m_subPageToDelete, true);
-}
-
-
-SetColourCommand::SetColourCommand(TeletextDocument *teletextDocument, int colourIndex, int newColour, QUndoCommand *parent) : QUndoCommand(parent)
-{
-	m_teletextDocument = teletextDocument;
-	m_subPageIndex = teletextDocument->currentSubPageIndex();
-	m_colourIndex = colourIndex;
-	m_oldColour = teletextDocument->currentSubPage()->CLUT(colourIndex);
-	m_newColour = newColour;
-
-	setText(QObject::tr("colour change"));
-
-}
-
-void SetColourCommand::redo()
-{
-	m_teletextDocument->selectSubPageIndex(m_subPageIndex);
-	m_teletextDocument->currentSubPage()->setCLUT(m_colourIndex, m_newColour);
-
-	emit m_teletextDocument->colourChanged(m_colourIndex);
-	emit m_teletextDocument->refreshNeeded();
-}
-
-void SetColourCommand::undo()
-{
-	m_teletextDocument->selectSubPageIndex(m_subPageIndex);
-	m_teletextDocument->currentSubPage()->setCLUT(m_colourIndex, m_oldColour);
-
-	emit m_teletextDocument->colourChanged(m_colourIndex);
-	emit m_teletextDocument->refreshNeeded();
-}
-
-
-ResetCLUTCommand::ResetCLUTCommand(TeletextDocument *teletextDocument, int colourTable, QUndoCommand *parent) : QUndoCommand(parent)
-{
-	m_teletextDocument = teletextDocument;
-	m_subPageIndex = teletextDocument->currentSubPageIndex();
-	m_colourTable = colourTable;
-	for (int i=m_colourTable*8; i<m_colourTable*8+8; i++)
-		m_oldColourEntry[i&7] = teletextDocument->currentSubPage()->CLUT(i);
-
-	setText(QObject::tr("CLUT %1 reset").arg(m_colourTable));
-}
-
-void ResetCLUTCommand::redo()
-{
-	m_teletextDocument->selectSubPageIndex(m_subPageIndex);
-	for (int i=m_colourTable*8; i<m_colourTable*8+8; i++) {
-		m_teletextDocument->currentSubPage()->setCLUT(i, m_teletextDocument->currentSubPage()->CLUT(i, 0));
-		emit m_teletextDocument->colourChanged(i);
-	}
-
-	emit m_teletextDocument->refreshNeeded();
-}
-
-void ResetCLUTCommand::undo()
-{
-	m_teletextDocument->selectSubPageIndex(m_subPageIndex);
-	for (int i=m_colourTable*8; i<m_colourTable*8+8; i++) {
-		m_teletextDocument->currentSubPage()->setCLUT(i, m_oldColourEntry[i&7]);
-		emit m_teletextDocument->colourChanged(i);
-	}
-
-	emit m_teletextDocument->refreshNeeded();
-}

levelonecommands.h

@@ -1,184 +0,0 @@
-/*
- * Copyright (C) 2020, 2021 Gavin MacGregor
- *
- * This file is part of QTeletextMaker.
- *
- * QTeletextMaker is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * QTeletextMaker is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with QTeletextMaker.  If not, see <https://www.gnu.org/licenses/>.
- */
-
-#ifndef LEVELONECOMMANDS_H
-#define LEVELONECOMMANDS_H
-
-#include <QUndoCommand>
-
-#include "document.h"
-
-class TypeCharacterCommand : public QUndoCommand
-{
-public:
-	enum { Id = 101 };
-
-	TypeCharacterCommand(TeletextDocument *, unsigned char, bool, QUndoCommand *parent = 0);
-
-	void redo() override;
-	void undo() override;
-	bool mergeWith(const QUndoCommand *) override;
-	int id() const override { return Id; }
-
-private:
-	TeletextDocument *m_teletextDocument;
-	unsigned char m_newCharacter, m_oldRowContents[40], m_newRowContents[40];
-	int m_subPageIndex, m_row, m_columnStart, m_columnEnd;
-	bool m_firstDo, m_insertMode;
-};
-
-class ToggleMosaicBitCommand : public QUndoCommand
-{
-public:
-	enum { Id = 102 };
-
-	ToggleMosaicBitCommand(TeletextDocument *, unsigned char, QUndoCommand *parent = 0);
-
-	void redo() override;
-	void undo() override;
-	bool mergeWith(const QUndoCommand *) override;
-	int id() const override { return Id; }
-
-private:
-	TeletextDocument *m_teletextDocument;
-	unsigned char m_oldCharacter, m_newCharacter;
-	int m_subPageIndex, m_row, m_column;
-};
-
-class BackspaceKeyCommand : public QUndoCommand
-{
-public:
-	enum { Id = 103 };
-
-	BackspaceKeyCommand(TeletextDocument *, bool insertMode, QUndoCommand *parent = 0);
-
-	void redo() override;
-	void undo() override;
-	bool mergeWith(const QUndoCommand *) override;
-	int id() const override { return Id; }
-
-private:
-	TeletextDocument *m_teletextDocument;
-	unsigned char m_oldRowContents[40], m_newRowContents[40];
-	int m_subPageIndex, m_row, m_columnStart, m_columnEnd;
-	bool m_firstDo, m_insertMode;
-};
-
-class DeleteKeyCommand : public QUndoCommand
-{
-public:
-	enum { Id = 104 };
-
-	DeleteKeyCommand(TeletextDocument *, QUndoCommand *parent = 0);
-
-	void redo() override;
-	void undo() override;
-	bool mergeWith(const QUndoCommand *) override;
-	int id() const override { return Id; }
-
-private:
-	TeletextDocument *m_teletextDocument;
-	unsigned char m_oldRowContents[40], m_newRowContents[40];
-	int m_subPageIndex, m_row, m_column;
-};
-
-class InsertSubPageCommand : public QUndoCommand
-{
-public:
-	InsertSubPageCommand(TeletextDocument *, bool, bool, QUndoCommand *parent = 0);
-
-	void redo() override;
-	void undo() override;
-
-private:
-	TeletextDocument *m_teletextDocument;
-	int m_newSubPageIndex;
-	bool m_copySubPage;
-};
-
-class DeleteSubPageCommand : public QUndoCommand
-{
-public:
-	DeleteSubPageCommand(TeletextDocument *, QUndoCommand *parent = 0);
-
-	void redo() override;
-	void undo() override;
-
-private:
-	TeletextDocument *m_teletextDocument;
-	int m_subPageToDelete;
-};
-
-class InsertRowCommand : public QUndoCommand
-{
-public:
-	InsertRowCommand(TeletextDocument *, bool, QUndoCommand *parent = 0);
-
-	void redo() override;
-	void undo() override;
-
-private:
-	TeletextDocument *m_teletextDocument;
-	int m_subPageIndex, m_row;
-	bool m_copyRow;
-	unsigned char m_deletedBottomRow[40];
-};
-
-class DeleteRowCommand : public QUndoCommand
-{
-public:
-	DeleteRowCommand(TeletextDocument *, QUndoCommand *parent = 0);
-
-	void redo() override;
-	void undo() override;
-
-private:
-	TeletextDocument *m_teletextDocument;
-	int m_subPageIndex, m_row;
-	unsigned char m_deletedRow[40];
-};
-
-class SetColourCommand : public QUndoCommand
-{
-public:
-	SetColourCommand(TeletextDocument *, int, int, QUndoCommand *parent = 0);
-
-	void redo() override;
-	void undo() override;
-
-private:
-	TeletextDocument *m_teletextDocument;
-	int m_subPageIndex, m_colourIndex, m_oldColour, m_newColour;
-};
-
-class ResetCLUTCommand : public QUndoCommand
-{
-public:
-	ResetCLUTCommand(TeletextDocument *, int, QUndoCommand *parent = 0);
-
-	void redo() override;
-	void undo() override;
-
-private:
-	TeletextDocument *m_teletextDocument;
-	int m_subPageIndex, m_colourTable;
-	int m_oldColourEntry[8];
-};
-
-#endif

loadsave.cpp

@@ -1,376 +0,0 @@
-/*
- * Copyright (C) 2020, 2021 Gavin MacGregor
- *
- * This file is part of QTeletextMaker.
- *
- * QTeletextMaker is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * QTeletextMaker is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with QTeletextMaker.  If not, see <https://www.gnu.org/licenses/>.
- */
-
-#include "loadsave.h"
-
-#include <QByteArray>
-#include <QFile>
-#include <QSaveFile>
-#include <QString>
-#include <QTextStream>
-
-#include "document.h"
-#include "levelonepage.h"
-#include "pagebase.h"
-
-void loadTTI(QFile *inFile, TeletextDocument *document)
-{
-	QByteArray inLine;
-	bool firstSubPageAlreadyFound = false;
-	int cycleCommandsFound = 0;
-	int mostRecentCycleValue = -1;
-	LevelOnePage::CycleTypeEnum mostRecentCycleType;
-
-	LevelOnePage* loadingPage = document->subPage(0);
-
-	for (;;) {
-		inLine = inFile->readLine(160).trimmed();
-		if (inLine.isEmpty())
-			break;
-		if (inLine.startsWith("DE,"))
-			document->setDescription(QString(inLine.remove(0, 3)));
-		if (inLine.startsWith("PN,")) {
-			// When second and subsequent PN commands are found, firstSubPageAlreadyFound==true at this point
-			// This assumes that PN is the first command of a new subpage...
-			if (firstSubPageAlreadyFound) {
-				document->insertSubPage(document->numberOfSubPages(), false);
-				loadingPage = document->subPage(document->numberOfSubPages()-1);
-			} else {
-				document->setPageNumber(inLine.mid(3,3));
-				firstSubPageAlreadyFound = true;
-			}
-		}
-/*		if (lineType == "SC,") {
-			bool subPageNumberOk;
-			int subPageNumberRead = inLine.mid(3, 4).toInt(&subPageNumberOk, 16);
-			if ((!subPageNumberOk) || subPageNumberRead > 0x3f7f)
-				subPageNumberRead = 0;
-			loadingPage->setSubPageNumber(subPageNumberRead);
-		}*/
-		if (inLine.startsWith("PS,")) {
-			bool pageStatusOk;
-			int pageStatusRead = inLine.mid(3, 4).toInt(&pageStatusOk, 16);
-			if (pageStatusOk) {
-				loadingPage->setControlBit(PageBase::C4ErasePage, pageStatusRead & 0x4000);
-				for (int i=PageBase::C5Newsflash, pageStatusBit=0x0001; i<=PageBase::C11SerialMagazine; i++, pageStatusBit<<=1)
-					loadingPage->setControlBit(i, pageStatusRead & pageStatusBit);
-				loadingPage->setDefaultNOS(((pageStatusRead & 0x0200) >> 9) | ((pageStatusRead & 0x0100) >> 7) | ((pageStatusRead & 0x0080) >> 5));
-			}
-		}
-		if (inLine.startsWith("CT,") && (inLine.endsWith(",C") || inLine.endsWith(",T"))) {
-			bool cycleValueOk;
-			int cycleValueRead = inLine.mid(3, inLine.size()-5).toInt(&cycleValueOk);
-			if (cycleValueOk) {
-				cycleCommandsFound++;
-				// House-keep CT command values, in case it's the only one within multiple subpages
-				mostRecentCycleValue = cycleValueRead;
-				loadingPage->setCycleValue(cycleValueRead);
-				mostRecentCycleType = inLine.endsWith("C") ? LevelOnePage::CTcycles : LevelOnePage::CTseconds;
-				loadingPage->setCycleType(mostRecentCycleType);
-			}
-		}
-		if (inLine.startsWith("FL,")) {
-			bool fastTextLinkOk;
-			int fastTextLinkRead;
-			QString flLine = QString(inLine.remove(0, 3));
-			if (flLine.count(',') == 5)
-				for (int i=0; i<6; i++) {
-					fastTextLinkRead = flLine.section(',', i, i).toInt(&fastTextLinkOk, 16);
-					if (fastTextLinkOk) {
-						if (fastTextLinkRead == 0)
-							fastTextLinkRead = 0x8ff;
-						// Stored as page link with relative magazine number, convert from absolute page number that was read
-						fastTextLinkRead ^= document->pageNumber() & 0x700;
-						fastTextLinkRead &= 0x7ff; // Fixes magazine 8 to 0
-						loadingPage->setFastTextLinkPageNumber(i, fastTextLinkRead);
-					}
-				}
-		}
-		if (inLine.startsWith("OL,")) {
-			bool lineNumberOk;
-			int lineNumber, secondCommaPosition;
-
-			secondCommaPosition = inLine.indexOf(",", 3);
-			if (secondCommaPosition != 4 && secondCommaPosition != 5)
-				continue;
-
-			lineNumber = inLine.mid(3, secondCommaPosition-3).toInt(&lineNumberOk, 10);
-			if (lineNumberOk && lineNumber>=0 && lineNumber<=29) {
-				inLine.remove(0, secondCommaPosition+1);
-				if (lineNumber <= 25) {
-					for (int c=0; c<40; c++) {
-						// trimmed() helpfully removes CRLF line endings from the just-read line for us
-						// But it also (un)helpfully removes spaces at the end of a 40 character line, so put them back
-						if (c >= inLine.size())
-							inLine.append(' ');
-						if (inLine.at(c) & 0x80)
-							inLine[c] = inLine.at(c) & 0x7f;
-						else if (inLine.at(c) == 0x10)
-							inLine[c] = 0x0d;
-						else if (inLine.at(c) == 0x1b) {
-							inLine.remove(c, 1);
-							inLine[c] = inLine.at(c) & 0xbf;
-						}
-					}
-					loadingPage->setPacket(lineNumber, inLine);
-				} else {
-					int designationCode = inLine.at(0) & 0x3f;
-					if (inLine.size() < 40) {
-						// OL is too short!
-						if (lineNumber == 26) {
-							// For a too-short enhancement triplets OL, first trim the line down to nearest whole triplet
-							inLine.resize((inLine.size() / 3 * 3) + 1);
-							// Then use "dummy" enhancement triplets to extend the line to the proper length
-							for (int i=inLine.size(); i<40; i+=3)
-								inLine.append("i^@"); // Address 41, Mode 0x1e, Data 0
-						} else
-							// For other triplet OLs and Hamming 8/4 OLs, just pad with zero data
-							for (int i=inLine.size(); i<40; i++)
-								inLine.append("@");
-					}
-					for (int i=1; i<=39; i++)
-						inLine[i] = inLine.at(i) & 0x3f;
-					loadingPage->setPacket(lineNumber, designationCode, inLine);
-				}
-			}
-		}
-	}
-	// If there's more than one subpage but only one valid CT command was found, apply it to all subpages
-	// I don't know if this is correct
-	if (cycleCommandsFound == 1 && document->numberOfSubPages()>1)
-		for (int i=0; i<document->numberOfSubPages(); i++) {
-			document->subPage(i)->setCycleValue(mostRecentCycleValue);
-			document->subPage(i)->setCycleType(mostRecentCycleType);
-		}
-}
-
-// Used by saveTTI and HashString
-int controlBitsToPS(PageBase *subPage)
-{
-	// C4 Erase page is stored in bit 14
-	int pageStatus = 0x8000 | (subPage->controlBit(PageBase::C4ErasePage) << 14); 
-	// C5 to C11 stored in order from bits 1 to 6
-	for (int i=PageBase::C5Newsflash; i<=PageBase::C11SerialMagazine; i++)
-		pageStatus |= subPage->controlBit(i) << (i-1);
-	// Apparently the TTI format stores the NOS bits backwards
-	pageStatus |= subPage->controlBit(PageBase::C12NOS) << 9;
-	pageStatus |= subPage->controlBit(PageBase::C13NOS) << 8;
-	pageStatus |= subPage->controlBit(PageBase::C14NOS) << 7;
-	return pageStatus;
-}
-
-void saveTTI(QSaveFile &file, const TeletextDocument &document)
-{
-	int p;
-	QTextStream outStream(&file);
-
-	auto write7bitPacket=[&](int packetNumber)
-	{
-		if (document.subPage(p)->packetNeeded(packetNumber)) {
-			QByteArray outLine = document.subPage(p)->packet(packetNumber);
-
-			outStream << QString("OL,%1,").arg(packetNumber);
-			for (int c=0; c<outLine.size(); c++)
-				if (outLine.at(c) < 0x20) {
-					// TTI files are plain text, so put in escape followed by control code with bit 6 set
-					outLine[c] = outLine.at(c) | 0x40;
-					outLine.insert(c, 0x1b);
-					c++;
-				}
-			outStream << outLine << Qt::endl;
-		}
-	};
-
-	auto writeHammingPacket=[&](int packetNumber, int designationCode=0)
-	{
-		if (document.subPage(p)->packetNeeded(packetNumber, designationCode)) {
-			QByteArray outLine = document.subPage(p)->packet(packetNumber, designationCode);
-
-			outStream << QString("OL,%1,").arg(packetNumber);
-			// TTI stores raw values with bit 6 set, doesn't do Hamming encoding
-			outLine[0] = designationCode | 0x40;
-			for (int c=1; c<outLine.size(); c++)
-				outLine[c] = outLine.at(c) | 0x40;
-			outStream << outLine << Qt::endl;
-		}
-	};
-
-	outStream.setCodec("ISO-8859-1");
-
-	if (!document.description().isEmpty())
-		outStream << "DE," << document.description() << Qt::endl;
-
-	// TODO DS and SP commands
-
-	// If there's just one subpage then we save it with a subcode of 0000
-	// otherwise start with a subcode of 0001
-	int subPageNumber = document.numberOfSubPages() > 1;
-
-	for (p=0; p<document.numberOfSubPages(); p++) {
-
-		outStream << QString("PN,%1%2").arg(document.pageNumber(), 3, 16, QChar('0')).arg(subPageNumber & 0xff, 2, 16, QChar('0')) << Qt::endl;
-		// Magazine Organisation Table and Magazine Inventory Page don't have subpages
-		if (document.pageFunction() != TeletextDocument::PFMOT && document.pageFunction() != TeletextDocument::PFMIP)
-			outStream << QString("SC,%1").arg(subPageNumber, 4, 16, QChar('0')) << Qt::endl;
-
-		outStream << QString("PS,%1").arg(0x8000 | controlBitsToPS(document.subPage(p)), 4, 16, QChar('0')) << Qt::endl;
-
-		if (document.pageFunction() == TeletextDocument::PFLevelOnePage)
-			// Assume that only Level One Pages have configurable cycle times
-			outStream << QString("CT,%1,%2").arg(document.subPage(p)->cycleValue()).arg(document.subPage(p)->cycleType()==LevelOnePage::CTcycles ? 'C' : 'T') << Qt::endl;
-		else
-			// X/28/0 specifies page function and coding but the PF command
-			// should make it obvious to a human that this isn't a Level One Page
-			outStream << QString("PF,%1,%2").arg(document.pageFunction()).arg(document.packetCoding()) << Qt::endl;
-
-		bool writeFLCommand = false;
-		if (document.pageFunction() == TeletextDocument::PFLevelOnePage && document.subPage(p)->packetNeeded(27,0)) {
-			// Subpage has FastText links - if any link to a specific subpage, we need to write X/27/0 as raw
-			// otherwise we write the links as a human-readable FL command later on
-			writeFLCommand = true;
-			// TODO uncomment this when we can edit FastText subpage links
-			/*for (int i=0; i<6; i++)
-				if (document.subPage(p)->fastTextLinkSubPageNumber(i) != 0x3f7f) {
-					writeFLCommand = false;
-					break;
-				}*/
-		}
-
-		// X27 then X28 always come first
-		for (int i=(writeFLCommand ? 1 : 0); i<16; i++)
-			writeHammingPacket(27, i);
-		for (int i=0; i<16; i++)
-			writeHammingPacket(28, i);
-
-		if (document.packetCoding() == TeletextDocument::Coding7bit) {
-			// For 7 bit coding i.e. Level One Pages, X/26 are written before X/1 to X/25
-			for (int i=0; i<16; i++)
-				writeHammingPacket(26, i);
-			for (int i=1; i<=24; i++)
-				write7bitPacket(i);
-		} else {
-			// For others (especially (G)POP pages) X/1 to X/25 are written before X/26
-			for (int i=1; i<=25; i++)
-				writeHammingPacket(i);
-			for (int i=0; i<16; i++)
-				writeHammingPacket(26, i);
-		}
-
-		if (writeFLCommand) {
-			outStream << "FL,";
-			for (int i=0; i<6; i++) {
-				// Stored as page link with relative magazine number, convert to absolute page number for display
-				int absoluteLinkPageNumber = document.subPage(p)->fastTextLinkPageNumber(i) ^ (document.pageNumber() & 0x700);
-				// Fix magazine 0 to 8
-				if ((absoluteLinkPageNumber & 0x700) == 0x000)
-					absoluteLinkPageNumber |= 0x800;
-
-				outStream << QString("%1").arg(absoluteLinkPageNumber, 3, 16, QChar('0'));
-				if (i<5)
-					outStream << ',';
-			}
-			outStream << Qt::endl;
-		}
-
-		subPageNumber++;
-	}
-}
-
-QByteArray rowPacketAlways(PageBase *subPage, int packetNumber)
-{
-	if (subPage->packetNeeded(packetNumber))
-		return subPage->packet(packetNumber);
-	else
-		return QByteArray(40, ' ');
-}
-
-QString exportHashStringPage(LevelOnePage *subPage)
-{
-	int hashDigits[1167]={0};
-	int totalBits, charBit;
-	const char base64[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-_";
-	QString hashString;
-
-	// TODO int editTFCharacterSet = 5;
-	bool blackForeground = false;
-
-	for (int r=0; r<25; r++) {
-		QByteArray rowPacket = rowPacketAlways(subPage, r);
-		for (int c=0; c<40; c++) {
-			if (rowPacket.at(c) == 0x00 || rowPacket.at(c) == 0x10)
-				blackForeground = true;
-			for (int b=0; b<7; b++) {
-				totalBits = (r * 40 + c) * 7 + b;
-				charBit = ((rowPacket.at(c)) >> (6 - b)) & 0x01;
-				hashDigits[totalBits / 6] |= charBit << (5 - (totalBits % 6));
-			}
-		}
-	}
-
-	hashString.append(QString("#%1:").arg(blackForeground ? 8 : 0, 1, 16));
-
-	for (int i=0; i<1167; i++)
-		hashString.append(base64[hashDigits[i]]);
-
-	return hashString;
-}
-
-QString exportHashStringPackets(LevelOnePage *subPage)
-{
-	auto colourToHexString=[&](int whichCLUT)
-	{
-		QString resultHexString;
-
-		for (int i=whichCLUT*8; i<whichCLUT*8+8; i++)
-			resultHexString.append(QString("%1").arg(subPage->CLUT(i), 3, 16, QChar('0')));
-		return resultHexString;
-	};
-
-	const char base64[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-_";
-	QString result;
-
-	if (subPage->packetNeeded(28,0) || subPage->packetNeeded(28,4)) {
-		// X/28/0 and X/28/4 are duplicates apart from the CLUT definitions
-		// Assemble the duplicate beginning and ending of both packets
-		QString x28StringBegin, x28StringEnd;
-
-		x28StringBegin.append(QString("00%1").arg((subPage->defaultCharSet() << 3) | subPage->defaultNOS(), 2, 16, QChar('0')).toUpper());
-		x28StringBegin.append(QString("%1").arg((subPage->secondCharSet() << 3) | subPage->secondNOS(), 2, 16, QChar('0')).toUpper());
-		x28StringBegin.append(QString("%1%2%3%4").arg(subPage->leftSidePanelDisplayed(), 1, 10).arg(subPage->rightSidePanelDisplayed(), 1, 10).arg(subPage->sidePanelStatusL25(), 1, 10).arg(subPage->sidePanelColumns(), 1, 16));
-
-		x28StringEnd = QString("%1%2%3%4").arg(subPage->defaultScreenColour(), 2, 16, QChar('0')).arg(subPage->defaultRowColour(), 2, 16, QChar('0')).arg(subPage->blackBackgroundSubst(), 1, 10).arg(subPage->colourTableRemap(), 1, 10);
-
-		if (subPage->packetNeeded(28,0))
-			result.append(":X280=" + x28StringBegin + colourToHexString(2) + colourToHexString(3) + x28StringEnd);
-		if (subPage->packetNeeded(28,4))
-			result.append(":X284=" + x28StringBegin + colourToHexString(0) + colourToHexString(1) + x28StringEnd);
-	}
-
-	if (!subPage->enhancements()->isEmpty()) {
-		result.append(":X26=");
-		for (int i=0; i<subPage->enhancements()->size(); i++) {
-			result.append(base64[subPage->enhancements()->at(i).data() >> 1]);
-			result.append(base64[subPage->enhancements()->at(i).mode() | ((subPage->enhancements()->at(i).data() & 1) << 5)]);
-			result.append(base64[subPage->enhancements()->at(i).address()]);
-		}
-	}
-
-	result.append(QString(":PS=%1").arg(0x8000 | controlBitsToPS(subPage), 0, 16, QChar('0')));
-	return result;
-}

mainwidget.cpp

@@ -1,540 +0,0 @@
-/*
- * Copyright (C) 2020, 2021 Gavin MacGregor
- *
- * This file is part of QTeletextMaker.
- *
- * QTeletextMaker is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * QTeletextMaker is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with QTeletextMaker.  If not, see <https://www.gnu.org/licenses/>.
- */
-
-#include <QBitmap>
-#include <QFrame>
-#include <QGraphicsItem>
-#include <QGraphicsProxyWidget>
-#include <QGraphicsScene>
-#include <QKeyEvent>
-#include <QMenu>
-#include <QPainter>
-#include <QPair>
-#include <QUndoCommand>
-#include <QWidget>
-#include <vector>
-#include <iostream>
-
-#include "mainwidget.h"
-
-#include "document.h"
-#include "keymap.h"
-#include "levelonecommands.h"
-#include "levelonepage.h"
-#include "render.h"
-#include "x26triplets.h"
-
-TeletextWidget::TeletextWidget(QFrame *parent) : QFrame(parent)
-{
-	this->resize(QSize(480, 250));
-	this->setAttribute(Qt::WA_NoSystemBackground);
-	this->setAttribute(Qt::WA_InputMethodEnabled, true);
-	m_teletextDocument = new TeletextDocument();
-	m_levelOnePage = m_teletextDocument->currentSubPage();
-	m_pageRender.setTeletextPage(m_levelOnePage);
-	m_insertMode = false;
-	m_selectionInProgress = false;
-	m_grid = false;
-	setFocusPolicy(Qt::StrongFocus);
-	m_flashTiming = m_flashPhase = 0;
-	connect(&m_pageRender, &TeletextPageRender::flashChanged, this, &TeletextWidget::updateFlashTimer);
-	connect(&m_pageRender, &TeletextPageRender::sidePanelsChanged, this, &TeletextWidget::changeSize);
-	connect(m_teletextDocument, &TeletextDocument::subPageSelected, this, &TeletextWidget::subPageSelected);
-	connect(m_teletextDocument, &TeletextDocument::contentsChange, this, &TeletextWidget::refreshRow);
-	connect(m_teletextDocument, &TeletextDocument::refreshNeeded, this, &TeletextWidget::refreshPage);
-	connect(m_teletextDocument, &TeletextDocument::selectionMoved, this, QOverload<>::of(&TeletextWidget::update));
-}
-
-TeletextWidget::~TeletextWidget()
-{
-	if (m_flashTimer.isActive())
-		m_flashTimer.stop();
-	delete m_teletextDocument;
-}
-
-// Re-implemented so compose/dead keys work properly
-void TeletextWidget::inputMethodEvent(QInputMethodEvent* event)
-{
-	if (!event->commitString().isEmpty()) {
-		QKeyEvent keyEvent(QEvent::KeyPress, 0, Qt::NoModifier, event->commitString());
-
-		keyPressEvent(&keyEvent);
-	}
-	event->accept();
-}
-
-void TeletextWidget::subPageSelected()
-{
-	m_levelOnePage = m_teletextDocument->currentSubPage();
-	m_pageRender.setTeletextPage(m_levelOnePage);
-	refreshPage();
-}
-
-void TeletextWidget::refreshRow(int rowChanged)
-{
-	m_pageRender.renderPage(rowChanged);
-	update();
-}
-
-void TeletextWidget::refreshPage()
-{
-	m_pageRender.decodePage();
-	m_pageRender.renderPage();
-	update();
-}
-
-void TeletextWidget::paintEvent(QPaintEvent *event)
-{
-	Q_UNUSED(event);
-	QPainter widgetPainter(this);
-
-	widgetPainter.drawPixmap(m_pageRender.leftSidePanelColumns()*12, 0, *m_pageRender.pagePixmap(m_flashPhase), 0, 0, 480, 250);
-	if (m_pageRender.leftSidePanelColumns())
-		widgetPainter.drawPixmap(0, 0, *m_pageRender.pagePixmap(m_flashPhase), 864-m_pageRender.leftSidePanelColumns()*12, 0, m_pageRender.leftSidePanelColumns()*12, 250);
-	if (m_pageRender.rightSidePanelColumns())
-		widgetPainter.drawPixmap(480+m_pageRender.leftSidePanelColumns()*12, 0, *m_pageRender.pagePixmap(m_flashPhase), 480, 0, m_pageRender.rightSidePanelColumns()*12, 250);
-	if (this->hasFocus())
-		widgetPainter.fillRect((m_teletextDocument->cursorColumn()+m_pageRender.leftSidePanelColumns())*12, m_teletextDocument->cursorRow()*10, 12, 10, QColor(128, 128, 128, 192));
-	if (m_teletextDocument->selectionActive()) {
-		widgetPainter.setPen(QPen(QColor(192, 192, 192, 224), 1, Qt::DashLine));
-		widgetPainter.setBrush(QBrush(QColor(255, 255, 255, 64)));
-		widgetPainter.drawRect((m_teletextDocument->selectionLeftColumn()+m_pageRender.leftSidePanelColumns())*12, m_teletextDocument->selectionTopRow()*10, m_teletextDocument->selectionWidth()*12-1, m_teletextDocument->selectionHeight()*10-1);
-	}
-}
-
-void TeletextWidget::updateFlashTimer(int newFlashTimer)
-{
-	m_flashTiming = newFlashTimer;
-	m_flashPhase = 0;
-	if (newFlashTimer == 0) {
-		m_flashTimer.stop();
-		update();
-		return;
-	}
-	m_flashTimer.start((newFlashTimer == 1) ? 500 : 167, this);
-}
-
-void TeletextWidget::timerEvent(QTimerEvent *event)
-{
-	if (event->timerId() == m_flashTimer.timerId()) {
-		if (m_flashTiming == 1)
-			m_flashPhase += 3;
-		else
-			m_flashPhase++;
-		if (m_flashPhase == 6)
-			m_flashPhase = 0;
-		update();
-	} else
-		QWidget::timerEvent(event);
-}
-
-void TeletextWidget::setInsertMode(bool insertMode)
-{
-	m_insertMode = insertMode;
-}
-
-void TeletextWidget::toggleReveal(bool revealOn)
-{
-	m_pageRender.setReveal(revealOn);
-	update();
-}
-
-void TeletextWidget::toggleMix(bool mixOn)
-{
-	m_pageRender.setMix(mixOn);
-	update();
-}
-
-void TeletextWidget::toggleGrid(bool gridOn)
-{
-	m_grid = gridOn;
-	m_pageRender.setGrid(gridOn);
-	m_pageRender.renderPage();
-	update();
-}
-
-void TeletextWidget::setControlBit(int bitNumber, bool active)
-{
-	m_levelOnePage->setControlBit(bitNumber, active);
-	if (bitNumber == 1 || bitNumber == 2) {
-		m_pageRender.decodePage();
-		m_pageRender.renderPage();
-	}
-}
-
-void TeletextWidget::setDefaultCharSet(int newDefaultCharSet)
-{
-	m_levelOnePage->setDefaultCharSet(newDefaultCharSet);
-}
-
-void TeletextWidget::setDefaultNOS(int newDefaultNOS)
-{
-	m_levelOnePage->setDefaultNOS(newDefaultNOS);
-}
-
-void TeletextWidget::setDefaultScreenColour(int newColour)
-{
-	m_levelOnePage->setDefaultScreenColour(newColour);
-	m_pageRender.decodePage();
-	m_pageRender.renderPage();
-}
-
-void TeletextWidget::setDefaultRowColour(int newColour)
-{
-	m_levelOnePage->setDefaultRowColour(newColour);
-	m_pageRender.decodePage();
-	m_pageRender.renderPage();
-	update();
-}
-
-void TeletextWidget::setColourTableRemap(int newMap)
-{
-	m_levelOnePage->setColourTableRemap(newMap);
-	m_pageRender.decodePage();
-	m_pageRender.renderPage();
-	update();
-}
-
-void TeletextWidget::setBlackBackgroundSubst(bool substOn)
-{
-	m_levelOnePage->setBlackBackgroundSubst(substOn);
-	m_pageRender.decodePage();
-	m_pageRender.renderPage();
-	update();
-}
-
-void TeletextWidget::setSidePanelWidths(int newLeftSidePanelColumns, int newRightSidePanelColumns)
-{
-	m_levelOnePage->setLeftSidePanelDisplayed(newLeftSidePanelColumns != 0);
-	m_levelOnePage->setRightSidePanelDisplayed(newRightSidePanelColumns != 0);
-	if (newLeftSidePanelColumns)
-		m_levelOnePage->setSidePanelColumns((newLeftSidePanelColumns == 16) ? 0 : newLeftSidePanelColumns);
-	else
-		m_levelOnePage->setSidePanelColumns((newRightSidePanelColumns == 0) ? 0 : 16-newRightSidePanelColumns);
-	m_pageRender.updateSidePanels();
-}
-
-void TeletextWidget::setSidePanelAtL35Only(bool newSidePanelAtL35Only)
-{
-	m_levelOnePage->setSidePanelStatusL25(!newSidePanelAtL35Only);
-	m_pageRender.updateSidePanels();
-}
-
-void TeletextWidget::changeSize()
-{
-	setFixedSize(QSize(480+(pageRender()->leftSidePanelColumns()+pageRender()->rightSidePanelColumns())*12, 250));
-	emit sizeChanged();
-}
-
-void TeletextWidget::keyPressEvent(QKeyEvent *event)
-{
-	if (event->key() < 0x01000000) {
-		// A character-typing key was pressed
-		// Try to keymap it, if not keymapped then plain ASCII code (may be) returned
-		char mappedKeyPress = keymapping[m_pageRender.level1CharSet(m_teletextDocument->cursorRow(), m_teletextDocument->cursorColumn())].value(event->text().at(0), *qPrintable(event->text()));
-		if (mappedKeyPress < 0x20)
-			return;
-		// If outside ASCII map then the character can't be represented by current Level 1 character set
-		// Map it to block character so it doesn't need to be inserted-between later on
-		if (mappedKeyPress & 0x80)
-			mappedKeyPress = 0x7f;
-		if (m_pageRender.level1MosaicAttribute(m_teletextDocument->cursorRow(), m_teletextDocument->cursorColumn()) && (mappedKeyPress < 0x40 || mappedKeyPress > 0x5f)) {
-			// We're on a mosaic and a blast-through character was NOT pressed
-			if (event->key() >= Qt::Key_1 && event->key() <= Qt::Key_9 && event->modifiers() & Qt::KeypadModifier) {
-				switch (event->key()) {
-					case Qt::Key_7:
-						toggleCharacterBit(0x01); // Top left
-						break;
-					case Qt::Key_8:
-						toggleCharacterBit(0x02); // Top right
-						break;
-					case Qt::Key_4:
-						toggleCharacterBit(0x04); // Middle left
-						break;
-					case Qt::Key_5:
-						toggleCharacterBit(0x08); // Middle right
-						break;
-					case Qt::Key_1:
-						toggleCharacterBit(0x10); // Bottom left
-						break;
-					case Qt::Key_2:
-						toggleCharacterBit(0x40); // Bottom right
-						break;
-					case Qt::Key_9:
-						toggleCharacterBit(0x5f); // Invert
-						break;
-					case Qt::Key_6:
-						toggleCharacterBit(0x7f); // Set all
-						break;
-					case Qt::Key_3:
-						toggleCharacterBit(0x20); // Clear all
-						break;
-				}
-				return;
-			}
-			if (event->key() == Qt::Key_Space) {
-				setCharacter(0x20);
-				return;
-			}
-
-			// This macro is defined in keymap.h if no native scan codes are defined
-			// for the platform we are compiling on
-#ifndef QTTM_NONATIVESCANCODES
-			if (event->nativeScanCode() > 1) {
-				switch (event->nativeScanCode()) {
-					case mosaicNativeScanCodes[0]:
-						toggleCharacterBit(0x01); // Top left
-						break;
-					case mosaicNativeScanCodes[1]:
-						toggleCharacterBit(0x02); // Top right
-						break;
-					case mosaicNativeScanCodes[2]:
-						toggleCharacterBit(0x04); // Middle left
-						break;
-					case mosaicNativeScanCodes[3]:
-						toggleCharacterBit(0x08); // Middle right
-						break;
-					case mosaicNativeScanCodes[4]:
-						toggleCharacterBit(0x10); // Bottom left
-						break;
-					case mosaicNativeScanCodes[5]:
-						toggleCharacterBit(0x40); // Bottom right
-						break;
-					case mosaicNativeScanCodes[6]:
-						toggleCharacterBit(0x5f); // Invert
-						break;
-					case mosaicNativeScanCodes[7]:
-						toggleCharacterBit(0x7f); // Set all
-						break;
-					case mosaicNativeScanCodes[8]:
-						toggleCharacterBit(0x20); // Clear all
-						break;
-				}
-				return;
-			} else
-				qDebug("nativeScanCode not usable! Please use numeric keypad to toggle mosaic bits.");
-#else
-			qDebug("nativeScanCode was not compiled in! Please use numeric keypad to toggle mosaic bits.");
-#endif
-
-			// TODO some contingency plan if nativeScanCode didn't work?
-			return;
-		}
-		setCharacter(mappedKeyPress);
-		return;
-	}
-	switch (event->key()) {
-		case Qt::Key_Backspace:
-			m_teletextDocument->undoStack()->push(new BackspaceKeyCommand(m_teletextDocument, m_insertMode));
-			break;
-		case Qt::Key_Tab:
-			m_teletextDocument->undoStack()->push(new TypeCharacterCommand(m_teletextDocument, 0x20, true));
-			break;
-		case Qt::Key_Delete:
-			m_teletextDocument->undoStack()->push(new DeleteKeyCommand(m_teletextDocument));
-			break;
-		case Qt::Key_Insert:
-			emit insertKeyPressed();
-			break;
-
-		case Qt::Key_Up:
-			m_teletextDocument->cursorUp();
-			update();
-			break;
-		case Qt::Key_Down:
-			m_teletextDocument->cursorDown();
-			update();
-			break;
-		case Qt::Key_Left:
-			m_teletextDocument->cursorLeft();
-			update();
-			break;
-		case Qt::Key_Right:
-			m_teletextDocument->cursorRight();
-			update();
-			break;
-		case Qt::Key_Return:
-		case Qt::Key_Enter:
-			m_teletextDocument->cursorDown();
-			// fall through
-		case Qt::Key_Home:
-			m_teletextDocument->moveCursor(m_teletextDocument->cursorRow(), 0);
-			update();
-			break;
-		case Qt::Key_End:
-			m_teletextDocument->moveCursor(m_teletextDocument->cursorRow(), 39);
-			update();
-			break;
-
-		case Qt::Key_PageUp:
-			m_teletextDocument->selectSubPageNext();
-			break;
-		case Qt::Key_PageDown:
-			m_teletextDocument->selectSubPagePrevious();
-			break;
-		case Qt::Key_F5:
-			m_pageRender.decodePage();
-			m_pageRender.renderPage();
-			update();
-			break;
-		default:
-			QFrame::keyPressEvent(event);
-	}
-}
-
-void TeletextWidget::setCharacter(unsigned char newCharacter)
-{
-	m_teletextDocument->undoStack()->push(new TypeCharacterCommand(m_teletextDocument, newCharacter, m_insertMode));
-}
-
-void TeletextWidget::toggleCharacterBit(unsigned char bitToToggle)
-{
-	QUndoCommand *toggleMosaicBitCommand = new ToggleMosaicBitCommand(m_teletextDocument, bitToToggle);
-	m_teletextDocument->undoStack()->push(toggleMosaicBitCommand);
-}
-
-QPair<int, int> TeletextWidget::mouseToRowAndColumn(const QPoint &mousePosition)
-{
-	int row = mousePosition.y() / 10;
-	int column = mousePosition.x() / 12 - m_pageRender.leftSidePanelColumns();
-	if (row < 1)
-		row = 1;
-	if (row > 24)
-		row = 24;
-	if (column < 0)
-		column = 0;
-	if (column > 39)
-		column = 39;
-	return qMakePair(row, column);
-}
-
-void TeletextWidget::mousePressEvent(QMouseEvent *event)
-{
-	if (event->button() == Qt::LeftButton) {
-		m_teletextDocument->cancelSelection();
-		QPair<int, int> position = mouseToRowAndColumn(event->pos());
-		m_teletextDocument->moveCursor(position.first, position.second);
-		update();
-	}
-}
-
-void TeletextWidget::mouseMoveEvent(QMouseEvent *event)
-{
-	if (event->buttons() & Qt::LeftButton) {
-		QPair<int, int> position = mouseToRowAndColumn(event->pos());
-		if (m_selectionInProgress || position.first != m_teletextDocument->cursorRow() || position.second != m_teletextDocument->cursorColumn()) {
-			int topRow, bottomRow, leftColumn, rightColumn;
-
-			m_selectionInProgress = true;
-			if (m_teletextDocument->cursorRow() < position.first) {
-				topRow = m_teletextDocument->cursorRow();
-				bottomRow = position.first;
-			} else {
-				topRow = position.first;
-				bottomRow = m_teletextDocument->cursorRow();
-			}
-			if (m_teletextDocument->cursorColumn() < position.second) {
-				leftColumn = m_teletextDocument->cursorColumn();
-				rightColumn = position.second;
-			} else {
-				leftColumn = position.second;
-				rightColumn = m_teletextDocument->cursorColumn();
-			}
-			m_teletextDocument->setSelection(topRow, leftColumn, bottomRow, rightColumn);
-		}
-	}
-}
-
-void TeletextWidget::mouseReleaseEvent(QMouseEvent *event)
-{
-	if (event->button() == Qt::LeftButton)
-		m_selectionInProgress = false;
-}
-
-void TeletextWidget::focusInEvent(QFocusEvent *event)
-{
-	QFrame::focusInEvent(event);
-}
-
-void TeletextWidget::focusOutEvent(QFocusEvent *event)
-{
-	QFrame::focusOutEvent(event);
-}
-
-
-LevelOneScene::LevelOneScene(QWidget *levelOneWidget, QObject *parent) : QGraphicsScene(parent)
-{
-	setSceneRect(0, 0, 600, 288);
-	m_fullScreenTopRectItem = new QGraphicsRectItem(0, 0, 600, 19);
-	m_fullScreenTopRectItem->setPen(Qt::NoPen);
-	m_fullScreenTopRectItem->setBrush(QBrush(QColor(0, 0, 0)));
-	addItem(m_fullScreenTopRectItem);
-	m_fullScreenBottomRectItem = new QGraphicsRectItem(0, 269, 600, 19);
-	m_fullScreenBottomRectItem->setPen(Qt::NoPen);
-	m_fullScreenBottomRectItem->setBrush(QBrush(QColor(0, 0, 0)));
-	addItem(m_fullScreenBottomRectItem);
-
-	for (int r=0; r<25; r++) {
-		m_fullRowLeftRectItem[r] = new QGraphicsRectItem(0, 19+r*10, 60, 10);
-		m_fullRowLeftRectItem[r]->setPen(Qt::NoPen);
-		m_fullRowLeftRectItem[r]->setBrush(QBrush(QColor(0, 0, 0)));
-		addItem(m_fullRowLeftRectItem[r]);
-		m_fullRowRightRectItem[r] = new QGraphicsRectItem(540, 19+r*10, 60, 10);
-		m_fullRowRightRectItem[r]->setPen(Qt::NoPen);
-		m_fullRowRightRectItem[r]->setBrush(QBrush(QColor(0, 0, 0)));
-		addItem(m_fullRowRightRectItem[r]);
-	}
-
-	m_levelOneProxyWidget = addWidget(levelOneWidget);
-	m_levelOneProxyWidget->setPos(60, 19);
-	m_levelOneProxyWidget->setAutoFillBackground(false);
-}
-
-void LevelOneScene::setDimensions(int sceneWidth, int sceneHeight, int widgetWidth)
-{
-	setSceneRect(0, 0, sceneWidth, sceneHeight);
-
-	// Assume widget height is always 250
-	int topBottomBorders = (sceneHeight-250) / 2;
-	// Ideally we'd use m_levelOneProxyWidget->size() to discover the widget width ourselves
-	// but this causes a stubborn segfault, so we have to receive the widgetWidth as a parameter
-	int leftRightBorders = (sceneWidth-widgetWidth) / 2;
-
-	m_levelOneProxyWidget->setPos(leftRightBorders, topBottomBorders);
-
-	m_fullScreenTopRectItem->setRect(0, 0, sceneWidth, topBottomBorders);
-	m_fullScreenBottomRectItem->setRect(0, 250+topBottomBorders, sceneWidth, topBottomBorders);
-
-	for (int r=0; r<25; r++) {
-		m_fullRowLeftRectItem[r]->setRect(0, topBottomBorders+r*10, leftRightBorders+1, 10);
-		m_fullRowRightRectItem[r]->setRect(sceneWidth-leftRightBorders-1, topBottomBorders+r*10, leftRightBorders+1, 10);
-	}
-}
-
-void LevelOneScene::setFullScreenColour(const QColor &newColor)
-{
-	m_fullScreenTopRectItem->setBrush(QBrush(newColor));
-	m_fullScreenBottomRectItem->setBrush(QBrush(newColor));
-}
-
-void LevelOneScene::setFullRowColour(int row, const QColor &newColor)
-{
-	m_fullRowLeftRectItem[row]->setBrush(QBrush(newColor));
-	m_fullRowRightRectItem[row]->setBrush(QBrush(newColor));
-}

qteletextmaker.pro

@@ -1,42 +0,0 @@
-QT += widgets
-requires(qtConfig(filedialog))
-
-HEADERS       = document.h \
-                keymap.h \
-                levelonecommands.h \
-                levelonepage.h \
-                loadsave.h \
-                mainwidget.h \
-                mainwindow.h \
-                pagebase.h \
-                pagex26base.h \
-                pageenhancementsdockwidget.h \
-                pageoptionsdockwidget.h \
-                palettedockwidget.h \
-                render.h \
-                x26commands.h \
-                x26dockwidget.h \
-                x26model.h \
-                x26triplets.h
-SOURCES       = document.cpp \
-                levelonecommands.cpp \
-                levelonepage.cpp \
-                loadsave.cpp \
-                main.cpp \
-                mainwidget.cpp \
-                mainwindow.cpp \
-                pagebase.cpp \
-                pagex26base.cpp \
-                pageenhancementsdockwidget.cpp \
-                pageoptionsdockwidget.cpp \
-                palettedockwidget.cpp \
-                render.cpp \
-                x26commands.cpp \
-                x26dockwidget.cpp \
-                x26model.cpp \
-                x26triplets.cpp
-RESOURCES     = qteletextmaker.qrc
-
-# install
-target.path = /usr/local/bin
-INSTALLS += target

render.h

@@ -1,247 +0,0 @@
-/*
- * Copyright (C) 2020, 2021 Gavin MacGregor
- *
- * This file is part of QTeletextMaker.
- *
- * QTeletextMaker is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * QTeletextMaker is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with QTeletextMaker.  If not, see <https://www.gnu.org/licenses/>.
- */
-
-#ifndef RENDER_H
-#define RENDER_H
-
-#include <QBitmap>
-#include <QMap>
-#include <QMultiMap>
-#include <QPair>
-#include <vector>
-
-#include "levelonepage.h"
-
-
-struct textCharacter {
-	unsigned char code=0x20;
-	int set=0;
-	int diacritical=0;
-};
-
-struct displayAttributes {
-	bool doubleHeight=false;
-	bool doubleWidth=false;
-	bool boxingWindow=false;
-	bool conceal=false;
-	bool invert=false;
-	bool underlineSeparated=false;
-	bool forceContiguous=false;
-};
-
-struct textAttributes {
-	int foreColour=0x07;
-	int backColour=0x00;
-	struct flashFunctions {
-		int mode=0;
-		int ratePhase=0;
-		int phaseNumber=0;
-	} flash;
-	displayAttributes display;
-	/* font style */
-};
-
-struct textCell {
-	textCharacter character;
-	textAttributes attribute;
-	bool bottomHalf=false;
-	bool rightHalf=false;
-	bool level1Mosaic=false;
-	int level1CharSet=0;
-};
-
-struct applyAttributes {
-	bool applyForeColour=false;
-	bool applyBackColour=false;
-	bool applyFlash=false;
-	bool applyDisplayAttributes=false;
-	bool applyTextSizeOnly=false;
-	bool applyBoxingOnly=false;
-	bool applyConcealOnly=false;
-	bool applyContiguousOnly=false;
-	bool copyAboveAttributes=false;
-	textAttributes attribute;
-};
-
-class ActivePosition
-{
-public:
-	ActivePosition();
-	int row() const { return (m_row == -1) ? 0 : m_row; }
-	int column() const { return (m_column == -1) ? 0 : m_column; }
-	bool isDeployed() const { return m_row != -1; }
-	bool setRow(int);
-	bool setColumn(int);
-//	bool setRowAndColumn(int, int);
-
-private:
-	int m_row, m_column;
-};
-
-
-class TextLayer
-{
-public:
-//	TextLayer(TeletextPage* thePage) : currentPage(thePage) { };
-	virtual ~TextLayer() = default;
-	void setTeletextPage(LevelOnePage *);
-	virtual textCharacter character(int, int) =0;
-	virtual void attributes(int, int, applyAttributes *) =0;
-	virtual int fullScreenColour() const =0;
-	virtual int fullRowColour(int) const =0;
-	virtual bool fullRowDownwards(int) const =0;
-	virtual int objectType() const =0;
-	void setFullScreenColour(int);
-	void setFullRowColour(int, int, bool);
-
-	// Key QPair is row and column, value QPair is triplet mode and data
-	QMultiMap<QPair<int, int>, QPair<int, int>> enhanceMap;
-
-protected:
-	LevelOnePage* m_levelOnePage;
-	int m_layerFullScreenColour=-1;
-	int m_layerFullRowColour[25];
-	bool m_layerFullRowDownwards[25];
-	applyAttributes m_applyAttributes;
-};
-
-class EnhanceLayer: public TextLayer
-{
-public:
-	EnhanceLayer();
-	textCharacter character(int, int);
-	void attributes(int, int, applyAttributes *);
-	int fullScreenColour() const { return m_layerFullScreenColour; };
-	int fullRowColour(int r) const { return m_layerFullRowColour[r]; };
-	bool fullRowDownwards(int r) const { return m_layerFullRowDownwards[r]; };
-	int objectType() const { return m_objectType; };
-	void setObjectType(int);
-	void setOrigin(int, int);
-
-protected:
-	int m_objectType=0;
-	int m_originR=0;
-	int m_originC=0;
-	int m_rowCached=-1;
-	int m_rightMostColumn[25];
-};
-
-class Level1Layer: public TextLayer
-{
-public:
-//	Level1Layer(TeletextPage *thePage) : TextLayer(thePage) { };
-	Level1Layer();
-	textCharacter character(int, int);
-	void attributes(int, int, applyAttributes *);
-	int fullScreenColour() const { return -1; };
-	int fullRowColour(int) const { return -1; };
-	bool fullRowDownwards(int) const { return false; };
-	int objectType() const { return 0; }
-	bool isRowBottomHalf(int r) const { return m_rowHeight[r]==RHbottomhalf; }
-
-private:
-	void updateRowCache(int);
-
-	struct level1CacheAttributes {
-		int foreColour=0x07;
-		int backColour=0x00;
-		unsigned char sizeCode=0x0c;
-		bool mosaics=false;
-		bool separated=false;
-		bool held=false;
-		bool escSwitch=false;
-		unsigned char holdChar=0x20;
-		bool holdSeparated=false;
-	};
-	level1CacheAttributes m_attributeCache[40];
-	int m_rowCached=-1;
-	bool m_rowHasDoubleHeightAttr[25];
-	enum rowHeightEnum { RHnormal=-1, RHtophalf, RHbottomhalf } m_rowHeight[25];
-};
-
-class TeletextPageRender : public QObject
-{
-	Q_OBJECT
-
-public:
-	TeletextPageRender();
-	~TeletextPageRender();
-	void decodePage();
-	void renderPage();
-	void renderPage(int r);
-	void setTeletextPage(LevelOnePage *);
-	void updateSidePanels();
-	void buildEnhanceMap(TextLayer *, int=0);
-	QPixmap* pagePixmap(int i) const { return m_pagePixmap[i]; };
-	bool level1MosaicAttribute(int r, int c) const { return m_cell[r][c].level1Mosaic; };
-	int level1CharSet(int r, int c) const { return m_cell[r][c].level1CharSet; };
-	int leftSidePanelColumns() const { return m_leftSidePanelColumns; };
-	int rightSidePanelColumns() const { return m_rightSidePanelColumns; };
-	void setGrid(bool);
-
-public slots:
-	void setReveal(bool);
-	void setMix(bool);
-	void setShowCodes(bool);
-	void setRenderLevel(int);
-
-signals:
-	void fullScreenColourChanged(QColor);
-	void fullRowColourChanged(int, QColor);
-	void flashChanged(int);
-	void sidePanelsChanged();
-
-protected:
-	void updateFlashRequired(int);
-	inline void setFullScreenColour(int);
-	inline void setFullRowColour(int, int);
-
-	QBitmap* m_fontBitmap;
-	QPixmap* m_pagePixmap[6];
-	int m_finalFullScreenColour, m_renderLevel;
-	QColor m_finalFullScreenQColor;
-	int m_leftSidePanelColumns, m_rightSidePanelColumns;
-	bool m_reveal, m_mix, m_grid, m_showCodes;
-	Level1Layer m_level1Layer;
-	std::vector<TextLayer *> m_textLayer;
-	const int m_foregroundRemap[8] = { 0,  0,  0,  8,  8, 16, 16, 16 };
-	const int m_backgroundRemap[8] = { 0,  8, 16,  8, 16,  8, 16, 24 };
-
-private:
-	textCell m_cell[25][72];
-	LevelOnePage* m_levelOnePage;
-	int m_flashRequired;
-	int m_fullRowColour[25];
-	QColor m_fullRowQColor[25];
-	int m_flashRow[25];
-	bool m_concealRow[25];
-};
-
-static const QMap<int, int> g0CharacterMap {
-	{ 0x00, 12 }, { 0x01, 15 }, { 0x02, 22 }, { 0x03, 16 }, { 0x04, 14 }, { 0x05, 19 }, { 0x06, 11 },
-	{ 0x08, 18 }, { 0x09, 15 }, { 0x0a, 22 }, { 0x0b, 16 }, { 0x0c, 14 }, { 0x0e, 11 },
-	{ 0x10, 12 }, { 0x11, 15 }, { 0x12, 22 }, { 0x13, 16 }, { 0x14, 14 }, { 0x15, 19 }, { 0x16, 23 },
-	{ 0x1d, 21 }, { 0x1f, 20 },
-	{ 0x20,  1 }, { 0x21, 15 }, { 0x22, 13 }, { 0x23, 17 }, { 0x24,  2 }, { 0x25,  3 }, { 0x26, 11 },
-	{ 0x36, 23 }, { 0x37,  4 },
-	{ 0x40, 12 }, { 0x44, 14 }, { 0x47,  5 },
-	{ 0x55,  6 }, { 0x57,  5 }
-};
-
-#endif

src/qteletextdecoder/CMakeLists.txt

@@ -0,0 +1,7 @@
+file (GLOB SOURCES *.cpp)
+
+add_library(qteletextdecoder ${SOURCES} teletextfonts.qrc)
+
+target_include_directories(qteletextdecoder PUBLIC ${CMAKE_CURRENT_SOURCE_DIR})
+
+target_link_libraries(qteletextdecoder Qt::Widgets)

src/qteletextdecoder/decode.h

@@ -0,0 +1,281 @@
+/*
+ * Copyright (C) 2020-2024 Gavin MacGregor
+ *
+ * This file is part of QTeletextMaker.
+ *
+ * QTeletextMaker is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * QTeletextMaker is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with QTeletextMaker.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#ifndef DECODE_H
+#define DECODE_H
+
+#include <QList>
+#include <QMap>
+#include <QMultiMap>
+
+#include "levelonepage.h"
+
+class TeletextPageDecode : public QObject
+{
+	Q_OBJECT
+
+public:
+	enum CharacterFragment { NormalSize, DoubleHeightTopHalf, DoubleHeightBottomHalf, DoubleWidthLeftHalf, DoubleWidthRightHalf, DoubleSizeTopLeftQuarter, DoubleSizeTopRightQuarter, DoubleSizeBottomLeftQuarter, DoubleSizeBottomRightQuarter };
+	enum RowHeight { NormalHeight, TopHalf, BottomHalf };
+
+	TeletextPageDecode();
+	~TeletextPageDecode();
+	bool refresh(int r, int c) const { return m_refresh[r][c]; }
+	void setRefresh(int r, int c, bool refresh);
+	void decodePage();
+	LevelOnePage *teletextPage() const { return m_levelOnePage; };
+	void setTeletextPage(LevelOnePage *newCurrentPage);
+	void updateSidePanels();
+
+	unsigned char cellCharacterCode(int r, int c) const { return m_cell[r][c].character.code; };
+	int cellCharacterSet(int r, int c) const { return m_cell[r][c].character.set; };
+	int cellCharacterDiacritical(int r, int c) const { return m_cell[r][c].character.diacritical; };
+	int cellG0CharacterSet(int r, int c) const { return m_cell[r][c].g0Set; };
+	int cellG2CharacterSet(int r, int c) const { return m_cell[r][c].g2Set; };
+	int cellForegroundCLUT(int r, int c) const { return m_cell[r][c].attribute.foregroundCLUT; };
+	int cellBackgroundCLUT(int r, int c) const { return m_cell[r][c].attribute.backgroundCLUT; };
+	QColor cellForegroundQColor(int r, int c);
+	QColor cellBackgroundQColor(int r, int c);
+	QColor cellFlashForegroundQColor(int r, int c);
+	int cellFlashMode(int r, int c) const { return m_cell[r][c].attribute.flash.mode; };
+	int cellFlashRatePhase(int r, int c) const { return m_cell[r][c].attribute.flash.ratePhase; };
+	int cellFlash2HzPhaseNumber(int r, int c) const { return m_cell[r][c].attribute.flash.phase2HzShown; };
+	CharacterFragment cellCharacterFragment(int r, int c) const { return m_cell[r][c].fragment; };
+	bool cellBoxed(int r, int c) const { return m_cell[r][c].attribute.display.boxingWindow; };
+	bool cellConceal(int r, int c) const { return m_cell[r][c].attribute.display.conceal; };
+	bool cellUnderlined(int r, int c) const { return cellCharacterSet(r, c) < 24 ? m_cell[r][c].attribute.display.underlineSeparated : false; };
+	bool cellBold(int r, int c) const { return m_cell[r][c].attribute.style.bold; };
+	bool cellItalic(int r, int c) const { return m_cell[r][c].attribute.style.italic; };
+	bool cellProportional(int r, int c) const { return m_cell[r][c].attribute.style.proportional; };
+
+	bool level1MosaicAttr(int r, int c) const { return m_cellLevel1MosaicAttr[r][c]; };
+	bool level1MosaicChar(int r, int c) const { return m_cellLevel1MosaicChar[r][c]; };
+	int level1CharSet(int r, int c) const { return m_cellLevel1CharSet[r][c]; };
+
+	RowHeight rowHeight(int r) const { return m_rowHeight[r]; };
+
+	QColor fullScreenQColor() const { return m_finalFullScreenQColor; };
+	QColor fullRowQColor(int r) const { return m_fullRowQColor[r]; };
+	int leftSidePanelColumns() const { return m_leftSidePanelColumns; };
+	int rightSidePanelColumns() const { return m_rightSidePanelColumns; };
+
+public slots:
+	void setLevel(int level);
+
+signals:
+	void fullScreenColourChanged(QColor newColour);
+	void fullRowColourChanged(int r, QColor newColour);
+	void sidePanelsChanged();
+
+protected:
+	inline void setFullScreenColour(int newColour);
+	inline void setFullRowColour(int row, int newColour);
+
+	int m_finalFullScreenColour, m_level;
+	QColor m_finalFullScreenQColor;
+	int m_leftSidePanelColumns, m_rightSidePanelColumns;
+	const int m_foregroundRemap[8] = { 0,  0,  0,  8,  8, 16, 16, 16 };
+	const int m_backgroundRemap[8] = { 0,  8, 16,  8, 16,  8, 16, 24 };
+
+private:
+	class Invocation;
+
+	enum ColourPart { Foreground, Background, FlashForeground };
+
+	struct textCharacter {
+		unsigned char code=0x20;
+		int set=0;
+		int diacritical=0;
+	};
+
+	friend inline bool operator!=(const textCharacter &lhs, const textCharacter &rhs)
+	{
+		return lhs.code        != rhs.code ||
+	           lhs.set         != rhs.set  ||
+	           lhs.diacritical != rhs.diacritical;
+	}
+
+	struct flashFunctions {
+		int mode=0;
+		int ratePhase=0;
+		int phase2HzShown=0;
+	};
+
+	struct displayAttributes {
+		bool doubleHeight=false;
+		bool doubleWidth=false;
+		bool boxingWindow=false;
+		bool conceal=false;
+		bool invert=false;
+		bool underlineSeparated=false;
+	};
+
+	struct fontStyle {
+		bool proportional=false;
+		bool bold=false;
+		bool italic=false;
+	};
+
+	friend inline bool operator!=(const displayAttributes &lhs, const displayAttributes &rhs)
+	{
+		return lhs.doubleHeight       != rhs.doubleHeight       ||
+		       lhs.doubleWidth        != rhs.doubleWidth        ||
+		       lhs.boxingWindow       != rhs.boxingWindow       ||
+		       lhs.conceal            != rhs.conceal            ||
+		       lhs.invert             != rhs.invert             ||
+		       lhs.underlineSeparated != rhs.underlineSeparated;
+	}
+
+	struct textAttributes {
+		int foregroundCLUT=7;
+		int backgroundCLUT=0;
+		flashFunctions flash;
+		displayAttributes display;
+		fontStyle style;
+	};
+
+	friend inline bool operator!=(const textAttributes &lhs, const textAttributes &rhs)
+	{
+		return lhs.foregroundCLUT      != rhs.foregroundCLUT      ||
+		       lhs.backgroundCLUT      != rhs.backgroundCLUT      ||
+		       lhs.flash.mode          != rhs.flash.mode          ||
+		       lhs.flash.ratePhase     != rhs.flash.ratePhase     ||
+		       lhs.flash.phase2HzShown != rhs.flash.phase2HzShown ||
+		       lhs.display             != rhs.display             ||
+		       lhs.style.proportional  != rhs.style.proportional  ||
+		       lhs.style.bold          != rhs.style.bold          ||
+		       lhs.style.italic        != rhs.style.italic;
+	}
+
+	struct textCell {
+		textCharacter character;
+		textAttributes attribute;
+		CharacterFragment fragment=NormalSize;
+		int g0Set=0;
+		int g2Set=7;
+	};
+
+	friend inline bool operator!=(const textCell &lhs, const textCell &rhs)
+	{
+		return lhs.character != rhs.character ||
+		       lhs.attribute != rhs.attribute ||
+		       lhs.fragment  != rhs.fragment;
+	}
+
+	struct textPainter {
+		textAttributes attribute;
+		textCell result;
+		textCell rightHalfCell;
+		textCell bottomHalfCell[72];
+
+		int styleSpreadRows=0;
+		int setProportionalRows[72], clearProportionalRows[72];
+		int setBoldRows[72], clearBoldRows[72];
+		int setItalicRows[72], clearItalicRows[72];
+	};
+
+	const QMap<int, int> m_level1CharacterMap {
+		{ 0x00, 12 }, { 0x01, 15 }, { 0x02, 22 }, { 0x03, 16 }, { 0x04, 14 }, { 0x05, 19 }, { 0x06, 11 },
+		{ 0x08, 18 }, { 0x09, 15 }, { 0x0a, 22 }, { 0x0b, 16 }, { 0x0c, 14 }, { 0x0e, 11 },
+		{ 0x10, 12 }, { 0x11, 15 }, { 0x12, 22 }, { 0x13, 16 }, { 0x14, 14 }, { 0x15, 19 }, { 0x16, 23 },
+		{ 0x1d, 21 }, { 0x1f, 20 },
+		{ 0x20,  1 }, { 0x21, 15 }, { 0x22, 13 }, { 0x23, 17 }, { 0x24,  2 }, { 0x25,  3 }, { 0x26, 11 },
+		{ 0x36, 23 }, { 0x37,  4 },
+		{ 0x40, 12 }, { 0x44, 14 }, { 0x47,  5 },
+		{ 0x55,  6 }, { 0x57,  5 }
+	};
+	const QMap<int, int> m_g0CharacterMap {
+		{ 0x20,  1 }, { 0x24,  2 }, { 0x25,  3 },
+		{ 0x37,  4 },
+		{ 0x47,  5 },
+		{ 0x55,  6 }, { 0x57,  5 }
+	};
+	const QMap<int, int> m_g2CharacterMap {
+		{ 0x20,  8 }, { 0x24,  8 }, { 0x25,  8 },
+		{ 0x37,  9 },
+		{ 0x40, 10 }, { 0x44, 10 }, { 0x47, 10 },
+		{ 0x55, 10 }, { 0x57, 10 }
+	};
+
+	class Invocation
+	{
+	public:
+		Invocation();
+
+		X26TripletList *tripletList() const { return m_tripletList; };
+		void clear();
+		void setTripletList(X26TripletList *tripletList);
+		int startTripletNumber() const { return m_startTripletNumber; };
+		void setStartTripletNumber(int n);
+		int endTripletNumber() const { return m_endTripletNumber; };
+		void setEndTripletNumber(int n);
+		int originRow() const { return m_originRow; };
+		int originColumn() const { return m_originColumn; };
+		void setOrigin(int row, int column);
+		void buildMap(int level);
+
+		QList<QPair<int, int>> charPositions() const { return m_characterMap.uniqueKeys(); };
+		QList<QPair<int, int>> attrPositions() const { return m_attributeMap.uniqueKeys(); };
+		QList<X26Triplet> charactersMappedAt(int r, int c) const { return m_characterMap.values(qMakePair(r, c)); };
+		QList<X26Triplet> attributesMappedAt(int r, int c) const { return m_attributeMap.values(qMakePair(r, c)); };
+		int rightMostColumn(int r) const { return m_rightMostColumn.value(r, -1); };
+		int fullScreenColour() const { return m_fullScreenCLUT; };
+		QList<X26Triplet> fullRowColoursMappedAt(int r) const { return m_fullRowCLUTMap.values(r); };
+
+	private:
+		X26TripletList *m_tripletList;
+		int m_startTripletNumber, m_endTripletNumber;
+		int m_originRow, m_originColumn;
+		// QPair is row and column
+		QMultiMap<QPair<int, int>, X26Triplet> m_characterMap;
+		QMultiMap<QPair<int, int>, X26Triplet> m_attributeMap;
+		QMap<int, int> m_rightMostColumn;
+		int m_fullScreenCLUT;
+		QMultiMap<int, X26Triplet> m_fullRowCLUTMap;
+	};
+
+	static int s_instances;
+	static textPainter s_blankPainter;
+
+	void decodeRow(int r);
+	QColor cellQColor(int r, int c, ColourPart colourPart);
+	textCell& cellAtCharacterOrigin(int r, int c);
+	void buildInvocationList(Invocation &invocation, int objectType);
+	textCharacter characterFromTriplets(const QList<X26Triplet> triplets);
+	inline void rotateFlashMovement(flashFunctions &flash);
+
+	bool m_refresh[25][72];
+	textCell m_cell[25][72];
+	bool m_cellLevel1MosaicAttr[25][40];
+	bool m_cellLevel1MosaicChar[25][40];
+	int m_cellLevel1CharSet[25][40];
+	LevelOnePage* m_levelOnePage;
+	int m_fullRowColour[25];
+	QColor m_fullRowQColor[25];
+	QList<Invocation> m_invocations[3];
+	Invocation m_localEnhancements;
+	textPainter m_level1ActivePainter;
+	QList<textPainter> m_adapPassPainter[2];
+	int m_level1DefaultCharSet, m_level1SecondCharSet;
+	int m_defaultG0andG2, m_secondG0andG2;
+
+	RowHeight m_rowHeight[25];
+};
+
+#endif

src/qteletextdecoder/document.cpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2020, 2021 Gavin MacGregor
+ * Copyright (C) 2020-2024 Gavin MacGregor
  *
  * This file is part of QTeletextMaker.
  *
@@ -17,12 +17,46 @@
  * along with QTeletextMaker.  If not, see <https://www.gnu.org/licenses/>.
  */
 
+#include <QAbstractListModel>
 #include <vector>
 
 #include "document.h"
 
 #include "levelonepage.h"
 
+ClutModel::ClutModel(QObject *parent): QAbstractListModel(parent)
+{
+	m_subPage = nullptr;
+}
+
+int ClutModel::rowCount(const QModelIndex & /*parent*/) const
+{
+	return 32;
+}
+
+QVariant ClutModel::data(const QModelIndex &index, int role) const
+{
+	if (!index.isValid())
+		return QVariant();
+
+	if (role == Qt::DisplayRole)
+		return QString("CLUT %1:%2").arg(index.row() >> 3).arg(index.row() & 0x07);
+
+	if (role == Qt::DecorationRole && m_subPage != nullptr)
+		return m_subPage->CLUTtoQColor(index.row());
+
+	return QVariant();
+}
+
+void ClutModel::setSubPage(LevelOnePage *subPage)
+{
+	if (subPage != m_subPage) {
+		m_subPage = subPage;
+		emit dataChanged(createIndex(0, 0), createIndex(31, 0), QVector<int>(Qt::DecorationRole));
+	}
+}
+
+
 TeletextDocument::TeletextDocument()
 {
 	m_pageNumber = 0x199;
@@ -34,11 +68,17 @@ TeletextDocument::TeletextDocument()
 	m_undoStack = new QUndoStack(this);
 	m_cursorRow = 1;
 	m_cursorColumn = 0;
+	m_selectionCornerRow = m_selectionCornerColumn = -1;
 	m_selectionSubPage = nullptr;
+
+	m_clutModel = new ClutModel;
+	m_clutModel->setSubPage(m_subPages[0]);
 }
 
 TeletextDocument::~TeletextDocument()
 {
+	delete m_clutModel;
+
 	for (auto &subPage : m_subPages)
 		delete(subPage);
 	for (auto &recycleSubPage : m_recycleSubPages)
@@ -54,6 +94,25 @@ bool TeletextDocument::isEmpty() const
 	return true;
 }
 
+void TeletextDocument::clear()
+{
+	LevelOnePage *blankSubPage = new LevelOnePage;
+
+	m_subPages.insert(m_subPages.begin(), blankSubPage);
+
+	emit aboutToChangeSubPage();
+	m_currentSubPageIndex = 0;
+	m_clutModel->setSubPage(m_subPages[0]);
+	emit subPageSelected();
+	cancelSelection();
+	m_undoStack->clear();
+
+	for (int i=m_subPages.size()-1; i>0; i--) {
+		delete(m_subPages[i]);
+		m_subPages.erase(m_subPages.begin()+i);
+	}
+}
+
 /*
 void TeletextDocument::setPageFunction(PageFunctionEnum newPageFunction)
 {
@@ -71,8 +130,12 @@ void TeletextDocument::selectSubPageIndex(int newSubPageIndex, bool forceRefresh
 	// forceRefresh overrides "beyond the last subpage" check, so inserting a subpage after the last one still shows - dangerous workaround?
 	if (forceRefresh || (newSubPageIndex != m_currentSubPageIndex && newSubPageIndex < m_subPages.size())) {
 		emit aboutToChangeSubPage();
+
 		m_currentSubPageIndex = newSubPageIndex;
+
+		m_clutModel->setSubPage(m_subPages[m_currentSubPageIndex]);
 		emit subPageSelected();
+		emit selectionMoved();
 		return;
 	}
 }
@@ -81,8 +144,12 @@ void TeletextDocument::selectSubPageNext()
 {
 	if (m_currentSubPageIndex < m_subPages.size()-1) {
 		emit aboutToChangeSubPage();
+
 		m_currentSubPageIndex++;
+
+		m_clutModel->setSubPage(m_subPages[m_currentSubPageIndex]);
 		emit subPageSelected();
+		emit selectionMoved();
 	}
 }
 
@@ -90,8 +157,12 @@ void TeletextDocument::selectSubPagePrevious()
 {
 	if (m_currentSubPageIndex > 0) {
 		emit aboutToChangeSubPage();
+
 		m_currentSubPageIndex--;
+
+		m_clutModel->setSubPage(m_subPages[m_currentSubPageIndex]);
 		emit subPageSelected();
+		emit selectionMoved();
 	}
 }
 
@@ -112,6 +183,8 @@ void TeletextDocument::insertSubPage(int beforeSubPageIndex, bool copySubPage)
 
 void TeletextDocument::deleteSubPage(int subPageToDelete)
 {
+	m_clutModel->setSubPage(nullptr);
+
 	delete(m_subPages[subPageToDelete]);
 	m_subPages.erase(m_subPages.begin()+subPageToDelete);
 }
@@ -128,17 +201,12 @@ void TeletextDocument::unDeleteSubPageFromRecycle(int subPage)
 	m_recycleSubPages.pop_back();
 }
 
-void TeletextDocument::setPageNumber(QString pageNumberString)
+void TeletextDocument::setPageNumber(int pageNumber)
 {
-	bool pageNumberOk;
-	int pageNumberRead = pageNumberString.toInt(&pageNumberOk, 16);
-	if ((!pageNumberOk) || pageNumberRead < 0x100 || pageNumberRead > 0x8ff)
-		return;
-
 	// If the magazine number was changed, we need to update the relative magazine numbers in FastText
 	// and page enhancement links
 	int oldMagazine = (m_pageNumber & 0xf00);
-	int newMagazine = (pageNumberRead & 0xf00);
+	int newMagazine = (pageNumber & 0xf00);
 	// Fix magazine 0 to 8
 	if (oldMagazine == 0x800)
 		oldMagazine = 0x000;
@@ -146,7 +214,7 @@ void TeletextDocument::setPageNumber(QString pageNumberString)
 		newMagazine = 0x000;
 	int magazineFlip = oldMagazine ^ newMagazine;
 
-	m_pageNumber = pageNumberRead;
+	m_pageNumber = pageNumber;
 
 	for (auto &subPage : m_subPages)
 		if (magazineFlip) {
@@ -157,6 +225,17 @@ void TeletextDocument::setPageNumber(QString pageNumberString)
 	}
 }
 
+void TeletextDocument::setPageNumberFromString(QString pageNumberString)
+{
+	bool pageNumberOk;
+	int pageNumberRead = pageNumberString.toInt(&pageNumberOk, 16);
+
+	if ((!pageNumberOk) || pageNumberRead < 0x100 || pageNumberRead > 0x8ff)
+		return;
+
+	setPageNumber(pageNumberRead);
+}
+
 void TeletextDocument::setDescription(QString newDescription)
 {
 	m_description = newDescription;
@@ -168,62 +247,124 @@ void TeletextDocument::setFastTextLinkPageNumberOnAllSubPages(int linkNumber, in
 		subPage->setFastTextLinkPageNumber(linkNumber, pageNumber);
 }
 
-void TeletextDocument::cursorUp()
+void TeletextDocument::cursorUp(bool shiftKey)
 {
+	if (shiftKey && !selectionActive())
+		setSelectionCorner(m_cursorRow, m_cursorColumn);
+
 	if (--m_cursorRow == 0)
 		m_cursorRow = 24;
+
+	if (shiftKey)
+		emit selectionMoved();
+	else
+		cancelSelection();
+
 	emit cursorMoved();
 }
 
-void TeletextDocument::cursorDown()
+void TeletextDocument::cursorDown(bool shiftKey)
 {
+	if (shiftKey && !selectionActive())
+		setSelectionCorner(m_cursorRow, m_cursorColumn);
+
 	if (++m_cursorRow == 25)
 		m_cursorRow = 1;
+
+	if (shiftKey)
+		emit selectionMoved();
+	else
+		cancelSelection();
+
 	emit cursorMoved();
 }
 
-void TeletextDocument::cursorLeft()
+void TeletextDocument::cursorLeft(bool shiftKey)
 {
+	if (shiftKey && !selectionActive())
+		setSelectionCorner(m_cursorRow, m_cursorColumn);
+
 	if (--m_cursorColumn == -1) {
 		m_cursorColumn = 39;
-		cursorUp();
+		cursorUp(shiftKey);
 	}
+
+	if (shiftKey)
+		emit selectionMoved();
+	else
+		cancelSelection();
+
 	emit cursorMoved();
 }
 
-void TeletextDocument::cursorRight()
+void TeletextDocument::cursorRight(bool shiftKey)
 {
+	if (shiftKey && !selectionActive())
+		setSelectionCorner(m_cursorRow, m_cursorColumn);
+
 	if (++m_cursorColumn == 40) {
 		m_cursorColumn = 0;
-		cursorDown();
+		cursorDown(shiftKey);
 	}
+
+	if (shiftKey)
+		emit selectionMoved();
+	else
+		cancelSelection();
+
 	emit cursorMoved();
 }
 
-void TeletextDocument::moveCursor(int cursorRow, int cursorColumn)
+void TeletextDocument::moveCursor(int cursorRow, int cursorColumn, bool selectionInProgress)
 {
+	if (selectionInProgress && !selectionActive())
+		setSelectionCorner(m_cursorRow, m_cursorColumn);
+
 	if (cursorRow != -1)
 		m_cursorRow = cursorRow;
 	if (cursorColumn != -1)
 		m_cursorColumn = cursorColumn;
+
+	if (selectionInProgress)
+		emit selectionMoved();
+	else
+		cancelSelection();
+
 	emit cursorMoved();
 }
 
+void TeletextDocument::setSelectionCorner(int row, int column)
+{
+	if (m_selectionCornerRow != row || m_selectionCornerColumn != column) {
+		m_selectionSubPage = currentSubPage();
+		m_selectionCornerRow = row;
+		m_selectionCornerColumn = column;
+
+//		emit selectionMoved();
+	}
+}
+
 void TeletextDocument::setSelection(int topRow, int leftColumn, int bottomRow, int rightColumn)
 {
-	if (m_selectionTopRow != topRow || m_selectionBottomRow != bottomRow || m_selectionLeftColumn != leftColumn || m_selectionRightColumn != rightColumn) {
+	if (selectionTopRow() != topRow || selectionBottomRow() != bottomRow || selectionLeftColumn() != leftColumn || selectionRightColumn() != rightColumn) {
 		m_selectionSubPage = currentSubPage();
-		m_selectionTopRow = topRow;
-		m_selectionBottomRow = bottomRow;
-		m_selectionLeftColumn = leftColumn;
-		m_selectionRightColumn = rightColumn;
+		m_selectionCornerRow = topRow;
+		m_cursorRow = bottomRow;
+		m_selectionCornerColumn = leftColumn;
+		m_cursorColumn = rightColumn;
+
 		emit selectionMoved();
+		emit cursorMoved();
 	}
 }
 
 void TeletextDocument::cancelSelection()
 {
-	m_selectionSubPage = nullptr;
+	if (m_selectionSubPage != nullptr) {
+		m_selectionSubPage = nullptr;
+		emit selectionMoved();
+		m_selectionCornerRow = m_selectionCornerColumn = -1;
+	}
 }
 
 int TeletextDocument::levelRequired() const

src/qteletextdecoder/document.h

@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2020, 2021 Gavin MacGregor
+ * Copyright (C) 2020-2024 Gavin MacGregor
  *
  * This file is part of QTeletextMaker.
  *
@@ -20,11 +20,28 @@
 #ifndef DOCUMENT_H
 #define DOCUMENT_H
 
+#include <QAbstractListModel>
 #include <QObject>
 #include <QUndoStack>
 #include <vector>
+
 #include "levelonepage.h"
 
+class ClutModel : public QAbstractListModel
+{
+	Q_OBJECT
+
+public:
+	ClutModel(QObject *parent = 0);
+
+	int rowCount(const QModelIndex &parent = QModelIndex()) const override;
+	QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const override;
+	void setSubPage(LevelOnePage *page);
+
+private:
+	LevelOnePage *m_subPage;
+};
+
 class TeletextDocument : public QObject
 {
 	Q_OBJECT
@@ -39,6 +56,7 @@ public:
 	~TeletextDocument();
 
 	bool isEmpty() const;
+	void clear();
 
 	PageFunctionEnum pageFunction() const { return m_pageFunction; }
 //	void setPageFunction(PageFunctionEnum);
@@ -49,47 +67,52 @@ public:
 	LevelOnePage* subPage(int p) const { return m_subPages[p]; }
 	LevelOnePage* currentSubPage() const { return m_subPages[m_currentSubPageIndex]; }
 	int currentSubPageIndex() const { return m_currentSubPageIndex; }
-	void selectSubPageIndex(int, bool=false);
+	void selectSubPageIndex(int newSubPageIndex, bool refresh=false);
 	void selectSubPageNext();
 	void selectSubPagePrevious();
-	void insertSubPage(int, bool);
-	void deleteSubPage(int);
-	void deleteSubPageToRecycle(int);
-	void unDeleteSubPageFromRecycle(int);
+	void insertSubPage(int beforeSubPageIndex, bool copySubPage);
+	void deleteSubPage(int subPageToDelete);
+	void deleteSubPageToRecycle(int subPageToRecycle);
+	void unDeleteSubPageFromRecycle(int subPage);
 	int pageNumber() const { return m_pageNumber; }
-	void setPageNumber(QString);
+	void setPageNumber(int pageNumber);
+	void setPageNumberFromString(QString pageNumberString);
 	QString description() const { return m_description; }
-	void setDescription(QString);
-	void setFastTextLinkPageNumberOnAllSubPages(int, int);
+	void setDescription(QString newDescription);
+	void setFastTextLinkPageNumberOnAllSubPages(int linkNumber, int pageNumber);
 	QUndoStack *undoStack() const { return m_undoStack; }
+	ClutModel *clutModel() const { return m_clutModel; }
 	int cursorRow() const { return m_cursorRow; }
 	int cursorColumn() const { return m_cursorColumn; }
-	void cursorUp();
-	void cursorDown();
-	void cursorLeft();
-	void cursorRight();
-	void moveCursor(int, int);
-	int selectionTopRow() const { return m_selectionTopRow; }
-	int selectionBottomRow() const { return m_selectionBottomRow; }
-	int selectionLeftColumn() const { return m_selectionLeftColumn; }
-	int selectionRightColumn() const { return m_selectionRightColumn; }
-	int selectionWidth() const { return m_selectionRightColumn - m_selectionLeftColumn + 1; }
-	int selectionHeight() const { return m_selectionBottomRow - m_selectionTopRow + 1; }
+	void cursorUp(bool shiftKey=false);
+	void cursorDown(bool shiftKey=false);
+	void cursorLeft(bool shiftKey=false);
+	void cursorRight(bool shiftKey=false);
+	void moveCursor(int cursorRow, int cursorColumn, bool selectionInProgress=false);
+	int selectionTopRow() const { return m_selectionCornerRow == -1 ? m_cursorRow : qMin(m_selectionCornerRow, m_cursorRow); }
+	int selectionBottomRow() const { return qMax(m_selectionCornerRow, m_cursorRow); }
+	int selectionLeftColumn() const { return m_selectionCornerColumn == -1 ? m_cursorColumn : qMin(m_selectionCornerColumn, m_cursorColumn); }
+	int selectionRightColumn() const { return qMax(m_selectionCornerColumn, m_cursorColumn); }
+	int selectionWidth() const { return m_selectionCornerColumn == -1 ? 1 : selectionRightColumn() - selectionLeftColumn() + 1; }
+	int selectionHeight() const { return m_selectionCornerRow == -1 ? 1 : selectionBottomRow() - selectionTopRow() + 1; }
 	bool selectionActive() const { return m_selectionSubPage == currentSubPage(); }
-	void setSelection(int, int, int, int);
+	int selectionCornerRow() const { return m_selectionCornerRow == -1 ? m_cursorRow : m_selectionCornerRow; }
+	int selectionCornerColumn() const { return m_selectionCornerColumn == -1 ? m_cursorColumn : m_selectionCornerColumn; }
+	void setSelectionCorner(int row, int column);
+	void setSelection(int topRow, int leftColumn, int bottomRow, int rightColumn);
 	void cancelSelection();
 	int levelRequired() const;
 
 signals:
 	void cursorMoved();
 	void selectionMoved();
-	void colourChanged(int);
-	void contentsChange(int);
+	void colourChanged(int i);
+	void pageOptionsChanged();
 	void aboutToChangeSubPage();
 	void subPageSelected();
-	void refreshNeeded();
+	void contentsChanged();
 
-	void tripletCommandHighlight(int);
+	void tripletCommandHighlight(int tripletNumber);
 
 private:
 	QString m_description;
@@ -99,8 +122,9 @@ private:
 	std::vector<LevelOnePage *> m_subPages;
 	std::vector<LevelOnePage *> m_recycleSubPages;
 	QUndoStack *m_undoStack;
-	int m_cursorRow, m_cursorColumn, m_selectionTopRow, m_selectionBottomRow, m_selectionLeftColumn, m_selectionRightColumn;
+	int m_cursorRow, m_cursorColumn, m_selectionCornerRow, m_selectionCornerColumn;
 	LevelOnePage *m_selectionSubPage;
+	ClutModel *m_clutModel;
 };
 
 #endif

src/qteletextdecoder/levelonepage.cpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2020, 2021 Gavin MacGregor
+ * Copyright (C) 2020-2024 Gavin MacGregor
  *
  * This file is part of QTeletextMaker.
  *
@@ -25,23 +25,25 @@
 
 #include "levelonepage.h"
 
+#include "x26triplets.h"
+
 LevelOnePage::LevelOnePage()
 {
-	m_enhancements.reserve(208);
+	m_enhancements.reserve(maxEnhancements());
 	clearPage();
 }
 
 LevelOnePage::LevelOnePage(const PageBase &other)
 {
-	m_enhancements.reserve(208);
+	m_enhancements.reserve(maxEnhancements());
 	clearPage();
 
 	for (int i=0; i<26; i++)
-		if (other.packetNeeded(i))
+		if (other.packetExists(i))
 			setPacket(i, other.packet(i));
 	for (int i=26; i<30; i++)
 		for (int j=0; j<16; j++)
-			if (other.packetNeeded(i, j))
+			if (other.packetExists(i, j))
 				setPacket(i, j, other.packet(i));
 
 	for (int i=PageBase::C4ErasePage; i<=PageBase::C14NOS; i++)
@@ -62,7 +64,7 @@ void LevelOnePage::clearPage()
 		m_fastTextLink[i] = { 0x0ff, 0x3f7f };
 
 /*	m_subPageNumber = 0x0000; */
-	m_cycleValue = 8;
+	m_cycleValue = 20;
 	m_cycleType = CTseconds;
 	m_defaultCharSet = 0;
 	m_defaultNOS = 0;
@@ -125,12 +127,12 @@ QByteArray LevelOnePage::packet(int packetNumber, int designationCode) const
 			result[i*6+1] = m_fastTextLink[i].pageNumber & 0x00f;
 			result[i*6+2] = (m_fastTextLink[i].pageNumber & 0x0f0) >> 4;
 			result[i*6+3] = m_fastTextLink[i].subPageNumber & 0x000f;
-			result[i*6+4] = ((m_fastTextLink[i].subPageNumber & 0x0070) >> 4) | ((m_fastTextLink[i].pageNumber & 0x100) >> 8);
+			result[i*6+4] = ((m_fastTextLink[i].subPageNumber & 0x0070) >> 4) | ((m_fastTextLink[i].pageNumber & 0x100) >> 5);
 			result[i*6+5] = (m_fastTextLink[i].subPageNumber & 0x0f00) >> 8;
 			result[i*6+6] = ((m_fastTextLink[i].subPageNumber & 0x3000) >> 12) | ((m_fastTextLink[i].pageNumber & 0x600) >> 7);
 		}
-		result[43] = 0xf;
-		result[44] = result[45] = 0;
+		result[37] = 0xf;
+		result[38] = result[39] = 0;
 
 		return result;
 	}
@@ -254,7 +256,7 @@ bool LevelOnePage::setPacket(int packetNumber, int designationCode, QByteArray p
 	return PageBase::setPacket(packetNumber, designationCode, packetContents);
 }
 
-bool LevelOnePage::packetNeeded(int packetNumber) const
+bool LevelOnePage::packetExists(int packetNumber) const
 {
 	if (packetNumber <= 24) {
 		for (int c=0; c<40; c++)
@@ -263,10 +265,10 @@ bool LevelOnePage::packetNeeded(int packetNumber) const
 		return false;
 	}
 
-	return PageBase::packetNeeded(packetNumber);
+	return PageBase::packetExists(packetNumber);
 }
 
-bool LevelOnePage::packetNeeded(int packetNumber, int designationCode) const
+bool LevelOnePage::packetExists(int packetNumber, int designationCode) const
 {
 	if (packetNumber == 26)
 		return packetFromEnhancementListNeeded(designationCode);
@@ -295,10 +297,10 @@ bool LevelOnePage::packetNeeded(int packetNumber, int designationCode) const
 			return !isPaletteDefault(16, 31);
 		}
 		if (designationCode == 4)
-			return !isPaletteDefault(0,15);
+			return !isPaletteDefault(0, 15);
 	}
 
-	return PageBase::packetNeeded(packetNumber, designationCode);
+	return PageBase::packetExists(packetNumber, designationCode);
 }
 
 bool LevelOnePage::controlBit(int bitNumber) const
@@ -381,6 +383,9 @@ QColor LevelOnePage::CLUTtoQColor(int index, int renderLevel) const
 {
 	int colour12Bit = CLUT(index, renderLevel);
 
+	if (index == 8)
+		return QColor(Qt::transparent);
+
 	return QColor(((colour12Bit & 0xf00) >> 8) * 17, ((colour12Bit & 0x0f0) >> 4) * 17, (colour12Bit & 0x00f) * 17);
 }
 
@@ -391,7 +396,7 @@ bool LevelOnePage::isPaletteDefault(int colour) const
 
 bool LevelOnePage::isPaletteDefault(int fromColour, int toColour) const
 {
-	for (int i=fromColour; i<toColour; i++)
+	for (int i=fromColour; i<=toColour; i++)
 		if (m_CLUT[i] != m_defaultCLUT[i])
 			return false;
 
@@ -400,17 +405,21 @@ bool LevelOnePage::isPaletteDefault(int fromColour, int toColour) const
 
 int LevelOnePage::levelRequired() const
 {
+	// X/28/4 present i.e. CLUTs 0 or 1 redefined - Level 3.5
 	if (!isPaletteDefault(0, 15))
 		return 3;
 
 	// TODO Check for X/28/1 for DCLUT for mode 1-3 DRCS characters - return 3
 
-	int levelSeen = (!isPaletteDefault(16,31) || m_leftSidePanelDisplayed || m_rightSidePanelDisplayed || m_defaultScreenColour !=0 || m_defaultRowColour !=0 || m_blackBackgroundSubst || m_colourTableRemap !=0 || m_defaultCharSet != 0 || m_secondCharSet != 0xf) ? 2 : 0;
+	// Assume Level 2.5 if any X/28 page enhancements are present, otherwise assume Level 1
+	int levelSeen = (!isPaletteDefault(16, 31) || m_leftSidePanelDisplayed || m_rightSidePanelDisplayed || m_defaultScreenColour !=0 || m_defaultRowColour !=0 || m_blackBackgroundSubst || m_colourTableRemap !=0 || m_defaultCharSet != 0 || m_secondCharSet != 0xf) ? 2 : 0;
 
+	// If there's no X/26 triplets, exit here as Level 1 or 2.5
 	if (m_enhancements.isEmpty())
 		return levelSeen;
 
 	for (int i=0; i<m_enhancements.size(); i++) {
+		// Font style - Level 3.5 only triplet
 		if (m_enhancements.at(i).modeExt() == 0x2e) // Font style
 			return 3;
 
@@ -422,36 +431,52 @@ int LevelOnePage::levelRequired() const
 				case 0x1f: // Termination
 				case 0x22: // G3 character @ Level 1.5
 				case 0x2f: // G2 character
-				case 0x30 ... 0x3f: // G0 character with diacritical
-					levelSeen = qMax(levelSeen, 1);
+					levelSeen = 1;
 					break;
+				default:
+					if (m_enhancements.at(i).modeExt() >= 0x30 && m_enhancements.at(i).modeExt() <= 0x3f)
+						// G0 character with diacritical
+						levelSeen = 1;
 			}
+
 		if (levelSeen < 2)
 			switch (m_enhancements.at(i).modeExt()) {
 				// Check for Level 2.5 triplets
 				case 0x00: // Full screen colour
 				case 0x01: // Full row colour
-				case 0x10 ... 0x13: // Origin Modifer and Object Invocation
-				case 0x15 ... 0x17: // Object Definition
-					// Check if Object Defition is required only at Level 3.5
-					if ((m_enhancements.at(i).address() & 0x18) == 0x10)
-						return 3;
-					else
-						levelSeen = qMax(levelSeen, 2);
-					break;
+				case 0x10: // Origin Modifier
+				case 0x11: // Invoke Active Object
+				case 0x12: // Invoke Adaptive Object
+				case 0x13: // Invoke Passive Object
+				case 0x15: // Define Active Object
+				case 0x16: // Define Adaptive Object
+				case 0x17: // Define Passive Object
 				case 0x18: // DRCS Mode
-					// Check if DRCS is required only at Level 3.5
-					if ((m_enhancements.at(i).data() & 0x30) == 0x20)
-						return 3;
-					else
-						levelSeen = qMax(levelSeen, 2);
-					break;
 				case 0x20: // Foreground colour
 				case 0x21: // G1 character
 				case 0x23: // Background colour
-				case 0x27 ... 0x29: // Flash functions, G0 and G2 charset designation, G0 character @ Level 2.5
-				case 0x2b ... 0x2d: // G3 character @ Level 2.5, display attributes, DRCS character
-					levelSeen = qMax(levelSeen, 2);
+				case 0x27: // Flash functions
+				case 0x28: // G0 and G2 charset designation
+				case 0x29: // G0 character @ Level 2.5
+				case 0x2b: // G3 character @ Level 2.5
+				case 0x2c: // Display attributes
+				case 0x2d: // DRCS character
+					levelSeen = 2;
+					break;
+			}
+
+		if (levelSeen == 2)
+			switch (m_enhancements.at(i).modeExt()) {
+				// Check for triplets with "required at Level 3.5 only" parameters
+				case 0x15: // Define Active Object
+				case 0x16: // Define Adaptive Object
+				case 0x17: // Define Passive Object
+					if ((m_enhancements.at(i).address() & 0x18) == 0x10)
+						return 3;
+					break;
+				case 0x18: // DRCS Mode
+					if ((m_enhancements.at(i).data() & 0x30) == 0x20)
+						return 3;
 					break;
 			}
 	}

src/qteletextdecoder/levelonepage.h

@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2020, 2021 Gavin MacGregor
+ * Copyright (C) 2020-2024 Gavin MacGregor
  *
  * This file is part of QTeletextMaker.
  *
@@ -36,71 +36,73 @@ public:
 	enum CycleTypeEnum { CTcycles, CTseconds };
 
 	LevelOnePage();
-	LevelOnePage(const PageBase &);
+	LevelOnePage(const PageBase &other);
 
 	bool isEmpty() const override;
 
-	QByteArray packet(int) const override;
-	QByteArray packet(int, int) const override;
-	bool packetNeeded(int) const override;
-	bool packetNeeded(int, int) const override;
-	bool setPacket(int, QByteArray) override;
-	bool setPacket(int, int, QByteArray) override;
+	QByteArray packet(int packetNumber) const override;
+	QByteArray packet(int packetNumber, int designationCode) const override;
+	bool packetExists(int packetNumber) const override;
+	bool packetExists(int packetNumber, int designationCode) const override;
+	bool setPacket(int packetNumber, QByteArray packetContents) override;
+	bool setPacket(int packetNumber, int designationCode, QByteArray packetContents) override;
 
 	bool controlBit(int bitNumber) const override;
-	bool setControlBit(int, bool) override;
+	bool setControlBit(int bitNumber, bool active) override;
 
 	void clearPage();
 
+	int maxEnhancements() const { return 208; };
+
 /*	void setSubPageNumber(int); */
 	int cycleValue() const { return m_cycleValue; };
-	void setCycleValue(int);
+	void setCycleValue(int newValue);
 	CycleTypeEnum cycleType() const { return m_cycleType; };
-	void setCycleType(CycleTypeEnum);
+	void setCycleType(CycleTypeEnum newType);
 	int defaultCharSet() const { return m_defaultCharSet; }
-	void setDefaultCharSet(int);
+	void setDefaultCharSet(int newDefaultCharSet);
 	int defaultNOS() const { return m_defaultNOS; }
-	void setDefaultNOS(int);
+	void setDefaultNOS(int defaultNOS);
 	int secondCharSet() const { return m_secondCharSet; }
-	void setSecondCharSet(int);
+	void setSecondCharSet(int newSecondCharSet);
 	int secondNOS() const { return m_secondNOS; }
-	void setSecondNOS(int);
+	void setSecondNOS(int newSecondNOS);
 	unsigned char character(int row, int column) const { return m_level1Page[row][column]; }
-	void setCharacter(int, int, unsigned char);
+	void setCharacter(int row, int column, unsigned char newCharacter);
 	int defaultScreenColour() const { return m_defaultScreenColour; }
-	void setDefaultScreenColour(int);
+	void setDefaultScreenColour(int newDefaultScreenColour);
 	int defaultRowColour() const { return m_defaultRowColour; }
-	void setDefaultRowColour(int);
+	void setDefaultRowColour(int newDefaultRowColour);
 	int colourTableRemap() const { return m_colourTableRemap; }
-	void setColourTableRemap(int);
+	void setColourTableRemap(int newColourTableRemap);
 	bool blackBackgroundSubst() const { return m_blackBackgroundSubst; }
-	void setBlackBackgroundSubst(bool);
+	void setBlackBackgroundSubst(bool newBlackBackgroundSubst);
 	int CLUT(int index, int renderLevel=3) const;
-	void setCLUT(int, int);
+	void setCLUT(int index, int newColour);
 	QColor CLUTtoQColor(int index, int renderlevel=3) const;
-	bool isPaletteDefault(int) const;
-	bool isPaletteDefault(int, int) const;
+	bool isPaletteDefault(int colour) const;
+	bool isPaletteDefault(int fromColour, int toColour) const;
 	int levelRequired() const;
 	bool leftSidePanelDisplayed() const { return m_leftSidePanelDisplayed; }
-	void setLeftSidePanelDisplayed(bool);
+	void setLeftSidePanelDisplayed(bool newLeftSidePanelDisplayed);
 	bool rightSidePanelDisplayed() const { return m_rightSidePanelDisplayed; }
-	void setRightSidePanelDisplayed(bool);
+	void setRightSidePanelDisplayed(bool newRightSidePanelDisplayed);
 	int sidePanelColumns() const { return m_sidePanelColumns; }
-	void setSidePanelColumns(int);
+	void setSidePanelColumns(int newSidePanelColumns);
 	bool sidePanelStatusL25() const { return m_sidePanelStatusL25; }
-	void setSidePanelStatusL25(bool);
+	void setSidePanelStatusL25(bool newSidePanelStatusL25);
 	int fastTextLinkPageNumber(int linkNumber) const { return m_fastTextLink[linkNumber].pageNumber; }
-	void setFastTextLinkPageNumber(int, int);
+	void setFastTextLinkPageNumber(int linkNumber, int pageNumber);
 	int composeLinkFunction(int linkNumber) const { return m_composeLink[linkNumber].function; }
-	void setComposeLinkFunction(int, int);
+	void setComposeLinkFunction(int linkNumber, int newFunction);
 	bool composeLinkLevel2p5(int linkNumber) const { return m_composeLink[linkNumber].level2p5; }
-	void setComposeLinkLevel2p5(int, bool);
+	void setComposeLinkLevel2p5(int linkNumber, bool newRequired);
 	bool composeLinkLevel3p5(int linkNumber) const { return m_composeLink[linkNumber].level3p5; }
-	void setComposeLinkLevel3p5(int, bool);
+	void setComposeLinkLevel3p5(int linkNumber, bool newRequired);
 	int composeLinkPageNumber(int linkNumber) const { return m_composeLink[linkNumber].pageNumber; }
-	void setComposeLinkPageNumber(int, int);
+	void setComposeLinkPageNumber(int linkNumber, int newPageNumber);
 	int composeLinkSubPageCodes(int linkNumber) const { return m_composeLink[linkNumber].subPageCodes; }
-	void setComposeLinkSubPageCodes(int, int);
+	void setComposeLinkSubPageCodes(int linkNumber, int newSubPageCodes);
 
 private:
 	unsigned char m_level1Page[25][40];

src/qteletextdecoder/pagebase.cpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2020, 2021 Gavin MacGregor
+ * Copyright (C) 2020-2024 Gavin MacGregor
  *
  * This file is part of QTeletextMaker.
  *

src/qteletextdecoder/pagebase.h

@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2020, 2021 Gavin MacGregor
+ * Copyright (C) 2020-2024 Gavin MacGregor
  *
  * This file is part of QTeletextMaker.
  *
@@ -35,17 +35,17 @@ public:
 
 	virtual bool isEmpty() const;
 
-	virtual QByteArray packet(int) const;
-	virtual QByteArray packet(int, int) const;
-	virtual bool packetNeeded(int i) const { return m_displayPackets[i] != nullptr; }
-	virtual bool packetNeeded(int i, int j) const { return m_designationPackets[i-26][j] != nullptr; }
-	virtual bool setPacket(int, QByteArray);
-	virtual bool setPacket(int, int, QByteArray);
+	virtual QByteArray packet(int i) const;
+	virtual QByteArray packet(int i, int j) const;
+	virtual bool packetExists(int i) const { return m_displayPackets[i] != nullptr; }
+	virtual bool packetExists(int i, int j) const { return m_designationPackets[i-26][j] != nullptr; }
+	virtual bool setPacket(int i, QByteArray packetContents);
+	virtual bool setPacket(int i, int j, QByteArray packetContents);
 //	bool deletePacket(int);
 //	bool deletePacket(int, int);
 
 	virtual bool controlBit(int bitNumber) const { return m_controlBits[bitNumber]; }
-	virtual bool setControlBit(int, bool);
+	virtual bool setControlBit(int bitNumber, bool active);
 
 private:
 	bool m_controlBits[11];

src/qteletextdecoder/pagex26base.cpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2020, 2021 Gavin MacGregor
+ * Copyright (C) 2020-2024 Gavin MacGregor
  *
  * This file is part of QTeletextMaker.
  *
@@ -74,7 +74,7 @@ void PageX26Base::setEnhancementListFromPacket(int packetNumber, QByteArray pack
 		newX26Triplet.setAddress(packetContents.at(i*3+1) & 0x3f);
 		newX26Triplet.setMode(packetContents.at(i*3+2) & 0x1f);
 		newX26Triplet.setData(((packetContents.at(i*3+3) & 0x3f) << 1) | ((packetContents.at(i*3+2) & 0x20) >> 5));
-		m_enhancements[enhanceListPointer] = newX26Triplet;
+		m_enhancements.replace(enhanceListPointer, newX26Triplet);
 	}
 	if (newX26Triplet.mode() == 0x1f && newX26Triplet.address() == 0x3f && newX26Triplet.data() & 0x01)
 		// Last triplet was a Termination Marker (without ..follows) so clean up the repeated ones

src/qteletextdecoder/pagex26base.h

@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2020, 2021 Gavin MacGregor
+ * Copyright (C) 2020-2024 Gavin MacGregor
  *
  * This file is part of QTeletextMaker.
  *
@@ -31,14 +31,15 @@ class PageX26Base : public PageBase //: public QObject
 	//Q_OBJECT
 
 public:
-	QList<X26Triplet> *enhancements() { return &m_enhancements; };
+	X26TripletList *enhancements() { return &m_enhancements; };
+	virtual int maxEnhancements() const =0;
 
 protected:
-	QByteArray packetFromEnhancementList(int) const;
-	void setEnhancementListFromPacket(int, QByteArray);
+	QByteArray packetFromEnhancementList(int packetNumber) const;
+	void setEnhancementListFromPacket(int packetNumber, QByteArray packetContents);
 	bool packetFromEnhancementListNeeded(int n) const { return ((m_enhancements.size()+12) / 13) > n; };
 
-	QList<X26Triplet> m_enhancements;
+	X26TripletList m_enhancements;
 	const X26Triplet m_paddingX26Triplet { 41, 0x1e, 0 };
 };
 

src/qteletextdecoder/render.cpp

@@ -0,0 +1,477 @@
+/*
+ * Copyright (C) 2020-2024 Gavin MacGregor
+ *
+ * This file is part of QTeletextMaker.
+ *
+ * QTeletextMaker is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * QTeletextMaker is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with QTeletextMaker.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include <QBitmap>
+#include <QColor>
+#include <QDir>
+#include <QImage>
+#include <QPainter>
+#include <QPixmap>
+
+#include "render.h"
+
+#include "decode.h"
+
+int TeletextFontBitmap::s_instances = 0;
+
+QBitmap *TeletextFontBitmap::s_fontBitmap = nullptr;
+QImage *TeletextFontBitmap::s_fontImage = nullptr;
+
+TeletextFontBitmap::TeletextFontBitmap()
+{
+	Q_INIT_RESOURCE(teletextfonts);
+
+	if (s_instances == 0) {
+		s_fontBitmap = new QBitmap(":/fontimages/teletextfont.png");
+		s_fontImage = new QImage(s_fontBitmap->toImage());
+	}
+	s_instances++;
+}
+
+TeletextFontBitmap::~TeletextFontBitmap()
+{
+	s_instances--;
+	if (s_instances == 0) {
+		delete s_fontImage;
+		delete s_fontBitmap;
+	}
+}
+
+
+TeletextPageRender::TeletextPageRender()
+{
+	for (int i=0; i<6; i++)
+		m_pageImage[i] = new QImage(864, 250, QImage::Format_ARGB32_Premultiplied);
+
+	m_reveal = false;
+	m_renderMode = RenderNormal;
+	m_showControlCodes = false;
+	m_flashBuffersHz = 0;
+
+	for (int r=0; r<25; r++) {
+		m_flashingRow[r] = 0;
+		for (int c=0; c<40; c++)
+			m_controlCodeCache[r][c] = 0x7f;
+	}
+}
+
+TeletextPageRender::~TeletextPageRender()
+{
+	for (int i=0; i<6; i++)
+		delete m_pageImage[i];
+}
+
+void TeletextPageRender::setDecoder(TeletextPageDecode *decoder)
+{
+	m_decoder = decoder;
+}
+
+inline void TeletextPageRender::drawFromBitmap(QPainter &painter, int r, int c, const QImage image, TeletextPageDecode::CharacterFragment characterFragment)
+{
+	switch (characterFragment) {
+		case TeletextPageDecode::NormalSize:
+			painter.drawImage(c*12, r*10, image);
+			break;
+		case TeletextPageDecode::DoubleHeightTopHalf:
+			painter.drawImage(QRect(c*12, r*10, 12, 10), image, QRect(0, 0, 12, 5));
+			break;
+		case TeletextPageDecode::DoubleHeightBottomHalf:
+			painter.drawImage(QRect(c*12, r*10, 12, 10), image, QRect(0, 5, 12, 5));
+			break;
+		case TeletextPageDecode::DoubleWidthLeftHalf:
+			painter.drawImage(QRect(c*12, r*10, 12, 10), image, QRect(0, 0, 6, 10));
+			break;
+		case TeletextPageDecode::DoubleWidthRightHalf:
+			painter.drawImage(QRect(c*12, r*10, 12, 10), image, QRect(6, 0, 6, 10));
+			break;
+		case TeletextPageDecode::DoubleSizeTopLeftQuarter:
+			painter.drawImage(QRect(c*12, r*10, 12, 10), image, QRect(0, 0, 6, 5));
+			break;
+		case TeletextPageDecode::DoubleSizeTopRightQuarter:
+			painter.drawImage(QRect(c*12, r*10, 12, 10), image, QRect(6, 0, 6, 5));
+			break;
+		case TeletextPageDecode::DoubleSizeBottomLeftQuarter:
+			painter.drawImage(QRect(c*12, r*10, 12, 10), image, QRect(0, 5, 6, 5));
+			break;
+		case TeletextPageDecode::DoubleSizeBottomRightQuarter:
+			painter.drawImage(QRect(c*12, r*10, 12, 10), image, QRect(6, 5, 6, 5));
+			break;
+	}
+}
+
+inline void TeletextPageRender::drawFromFontBitmap(QPainter &painter, int r, int c, unsigned char characterCode, int characterSet, TeletextPageDecode::CharacterFragment characterFragment)
+{
+	switch (characterFragment) {
+		case TeletextPageDecode::NormalSize:
+			painter.drawImage(c*12, r*10, *m_fontBitmap.image(), (characterCode-32)*12, characterSet*10, 12, 10);
+			break;
+		case TeletextPageDecode::DoubleHeightTopHalf:
+			painter.drawImage(QRect(c*12, r*10, 12, 10), *m_fontBitmap.image(), QRect((characterCode-32)*12, characterSet*10, 12, 5));
+			break;
+		case TeletextPageDecode::DoubleHeightBottomHalf:
+			painter.drawImage(QRect(c*12, r*10, 12, 10), *m_fontBitmap.image(), QRect((characterCode-32)*12, characterSet*10+5, 12, 5));
+			break;
+		case TeletextPageDecode::DoubleWidthLeftHalf:
+			painter.drawImage(QRect(c*12, r*10, 12, 10), *m_fontBitmap.image(), QRect((characterCode-32)*12, characterSet*10, 6, 10));
+			break;
+		case TeletextPageDecode::DoubleWidthRightHalf:
+			painter.drawImage(QRect(c*12, r*10, 12, 10), *m_fontBitmap.image(), QRect((characterCode-32)*12+6, characterSet*10, 6, 10));
+			break;
+		case TeletextPageDecode::DoubleSizeTopLeftQuarter:
+			painter.drawImage(QRect(c*12, r*10, 12, 10), *m_fontBitmap.image(), QRect((characterCode-32)*12, characterSet*10, 6, 5));
+			break;
+		case TeletextPageDecode::DoubleSizeTopRightQuarter:
+			painter.drawImage(QRect(c*12, r*10, 12, 10), *m_fontBitmap.image(), QRect((characterCode-32)*12+6, characterSet*10, 6, 5));
+			break;
+		case TeletextPageDecode::DoubleSizeBottomLeftQuarter:
+			painter.drawImage(QRect(c*12, r*10, 12, 10), *m_fontBitmap.image(), QRect((characterCode-32)*12, characterSet*10+5, 6, 5));
+			break;
+		case TeletextPageDecode::DoubleSizeBottomRightQuarter:
+			painter.drawImage(QRect(c*12, r*10, 12, 10), *m_fontBitmap.image(), QRect((characterCode-32)*12+6, characterSet*10+5, 6, 5));
+			break;
+	}
+}
+
+inline void TeletextPageRender::drawCharacter(QPainter &painter, int r, int c, unsigned char characterCode, int characterSet, int characterDiacritical, TeletextPageDecode::CharacterFragment characterFragment)
+{
+	const bool dontUnderline = characterCode == 0x00;
+	if (dontUnderline)
+		characterCode = 0x20;
+
+	if (characterCode == 0x20 && characterSet < 25 && characterDiacritical == 0)
+		painter.fillRect(c*12, r*10, 12, 10, m_backgroundQColor);
+	else if (characterCode == 0x7f && characterSet == 24)
+		painter.fillRect(c*12, r*10, 12, 10, m_foregroundQColor);
+	else if ((m_decoder->cellBold(r, c) || m_decoder->cellItalic(r, c)) && characterSet < 24)
+		drawBoldOrItalicCharacter(painter, r, c, characterCode, characterSet, characterFragment);
+	else {
+		m_fontBitmap.image()->setColorTable(QVector<QRgb>{m_backgroundQColor.rgba(), m_foregroundQColor.rgba()});
+		drawFromFontBitmap(painter, r, c, characterCode, characterSet, characterFragment);
+	}
+
+	if (m_decoder->cellUnderlined(r, c) && !dontUnderline) {
+		painter.setPen(m_foregroundQColor);
+		switch (characterFragment) {
+			case TeletextPageDecode::NormalSize:
+			case TeletextPageDecode::DoubleWidthLeftHalf:
+			case TeletextPageDecode::DoubleWidthRightHalf:
+				painter.drawLine(c*12, r*10+9, c*12+11, r*10+9);
+				break;
+			case TeletextPageDecode::DoubleHeightBottomHalf:
+			case TeletextPageDecode::DoubleSizeBottomLeftQuarter:
+			case TeletextPageDecode::DoubleSizeBottomRightQuarter:
+				painter.drawRect(c*12, r*10+8, 11, 1);
+				break;
+			default:
+				break;
+		}
+	}
+
+	if (characterDiacritical != 0) {
+		painter.setCompositionMode(QPainter::CompositionMode_SourceOver);
+		m_fontBitmap.image()->setColorTable(QVector<QRgb>{0x00000000, m_foregroundQColor.rgba()});
+		drawFromFontBitmap(painter, r, c, characterDiacritical+64, 7, characterFragment);
+		painter.setCompositionMode(QPainter::CompositionMode_Source);
+	}
+}
+
+inline void TeletextPageRender::drawBoldOrItalicCharacter(QPainter &painter, int r, int c, unsigned char characterCode, int characterSet, TeletextPageDecode::CharacterFragment characterFragment)
+{
+	QImage styledImage = QImage(12, 10, QImage::Format_Mono);
+	QPainter styledPainter;
+
+	m_fontBitmap.image()->setColorTable(QVector<QRgb>{m_backgroundQColor.rgba(), m_foregroundQColor.rgba()});
+	styledImage.setColorTable(QVector<QRgb>{m_backgroundQColor.rgba(), m_foregroundQColor.rgba()});
+
+	if (m_decoder->cellItalic(r, c)) {
+		styledImage.fill(0);
+
+		styledPainter.begin(&styledImage);
+		styledPainter.setCompositionMode(QPainter::CompositionMode_Source);
+		styledPainter.drawImage(1, 0, *m_fontBitmap.image(), (characterCode-32)*12, characterSet*10, 11, 3);
+		styledPainter.drawImage(0, 3, *m_fontBitmap.image(), (characterCode-32)*12, characterSet*10+3, 12, 3);
+		styledPainter.drawImage(0, 6, *m_fontBitmap.image(), (characterCode-32)*12+1, characterSet*10+6, 11, 4);
+		styledPainter.end();
+	} else
+		styledImage = m_fontBitmap.image()->copy((characterCode-32)*12, characterSet*10, 12, 10);
+
+	if (m_decoder->cellBold(r, c)) {
+		QImage boldeningImage;
+
+		boldeningImage = styledImage.copy();
+		styledPainter.begin(&styledImage);
+		styledPainter.setCompositionMode(QPainter::CompositionMode_SourceOver);
+		boldeningImage.setColorTable(QVector<QRgb>{0x00000000, m_foregroundQColor.rgba()});
+		styledPainter.drawImage(1, 0, boldeningImage);
+		styledPainter.end();
+	}
+	drawFromBitmap(painter, r, c, styledImage, characterFragment);
+}
+
+void TeletextPageRender::renderPage(bool force)
+{
+	if (m_renderMode == RenderWhiteOnBlack) {
+		m_foregroundQColor = Qt::white;
+		m_backgroundQColor = Qt::black;
+	} else if (m_renderMode == RenderBlackOnWhite) {
+		m_foregroundQColor = Qt::black;
+		m_backgroundQColor = Qt::white;
+	}
+	for (int r=0; r<25; r++)
+		renderRow(r, 0, force);
+}
+
+void TeletextPageRender::renderRow(int r, int ph, bool force)
+{
+	QPainter painter;
+	int flashingRow = 0;
+	bool rowRefreshed = false;
+
+	painter.begin(m_pageImage[ph]);
+	painter.setCompositionMode(QPainter::CompositionMode_Source);
+
+	for (int c=0; c<72; c++) {
+		bool controlCodeChanged = false;
+
+		// Ensure that shown control codes are refreshed
+		if (ph == 0 && m_showControlCodes && c < 40 && (m_controlCodeCache[r][c] != 0x7f || m_decoder->teletextPage()->character(r, c) < 0x20)) {
+			controlCodeChanged = m_controlCodeCache[r][c] != m_decoder->teletextPage()->character(r, c);
+			if (controlCodeChanged) {
+				if (m_decoder->teletextPage()->character(r, c) < 0x20)
+					m_controlCodeCache[r][c] = m_decoder->teletextPage()->character(r, c);
+				else
+					m_controlCodeCache[r][c] = 0x7f;
+			}
+		}
+
+		// Second part of "if" suppresses all flashing on monochrome render modes
+		if (ph == 0 && m_renderMode < RenderWhiteOnBlack) {
+			if (m_decoder->cellFlashMode(r, c) != 0)
+				flashingRow = qMax(flashingRow, (m_decoder->cellFlashRatePhase(r, c) == 0) ? 1 : 2);
+//		} else if (!force)
+		} else
+			force = m_decoder->cellFlashMode(r, c) != 0;
+
+		// If drawing into a flash pixmap buffer, "force" is set on a flashing cell only
+		// and since the refresh and controlCodeChanged variables will be false at this point
+		// only flashing cells will be drawn
+		if (m_decoder->refresh(r, c) || force || controlCodeChanged) {
+			unsigned char characterCode;
+			int characterSet, characterDiacritical;
+
+			rowRefreshed = true;
+
+			if (!m_reveal && m_decoder->cellConceal(r, c)) {
+				characterCode = 0x20;
+				characterSet = 0;
+				characterDiacritical = 0;
+			} else {
+				characterCode = m_decoder->cellCharacterCode(r, c);
+				characterSet = m_decoder->cellCharacterSet(r, c);
+				characterDiacritical = m_decoder->cellCharacterDiacritical(r, c);
+			}
+
+			if (m_renderMode < RenderWhiteOnBlack) {
+				if (m_decoder->cellFlashMode(r, c) == 0)
+					m_foregroundQColor = m_decoder->cellForegroundQColor(r, c);
+				else {
+					// Flashing cell, decide if phase in this cycle is on or off
+					bool phaseOn;
+
+					if (m_decoder->cellFlashRatePhase(r, c) == 0)
+						phaseOn = (ph < 3) ^ (m_decoder->cellFlashMode(r, c) == 2);
+					else
+						phaseOn = ((ph == m_decoder->cellFlash2HzPhaseNumber(r, c)-1) || (ph == m_decoder->cellFlash2HzPhaseNumber(r, c)+2)) ^ (m_decoder->cellFlashMode(r, c) == 2);
+
+					// If flashing to adjacent CLUT select the appropriate foreground colour
+					if (m_decoder->cellFlashMode(r, c) == 3 && !phaseOn)
+						m_foregroundQColor = m_decoder->cellFlashForegroundQColor(r, c);
+					else
+						m_foregroundQColor = m_decoder->cellForegroundQColor(r, c);
+
+					// If flashing mode is Normal or Invert, draw a space instead of a character on phase
+					if ((m_decoder->cellFlashMode(r, c) == 1 || m_decoder->cellFlashMode(r, c) == 2) && !phaseOn) {
+						// Character 0x00 draws space without underline
+						characterCode = 0x00;
+						characterSet = 0;
+						characterDiacritical = 0;
+					}
+				}
+
+				if (m_renderMode != RenderMix || m_decoder->cellBoxed(r, c))
+					m_backgroundQColor = m_decoder->cellBackgroundQColor(r, c);
+				else
+					m_backgroundQColor = Qt::transparent;
+			}
+
+			drawCharacter(painter, r, c, characterCode, characterSet, characterDiacritical, m_decoder->cellCharacterFragment(r, c));
+
+			if (m_showControlCodes && c < 40 && m_decoder->teletextPage()->character(r, c) < 0x20) {
+				painter.setCompositionMode(QPainter::CompositionMode_SourceOver);
+				m_fontBitmap.image()->setColorTable(QVector<QRgb>{0x7f000000, 0xe0ffffff});
+				painter.drawImage(c*12, r*10, *m_fontBitmap.image(), (m_decoder->teletextPage()->character(r, c)+32)*12, 250, 12, 10);
+				painter.setCompositionMode(QPainter::CompositionMode_Source);
+			}
+		}
+	}
+
+	painter.end();
+
+	if (ph != 0)
+		return;
+
+	if (flashingRow == 3)
+		flashingRow = 2;
+	if (flashingRow != m_flashingRow[r])
+		setRowFlashStatus(r, flashingRow);
+
+	for (int c=0; c<72; c++)
+		m_decoder->setRefresh(r, c, false);
+
+	// If row had changes rendered and flashing is present anywhere on the screen,
+	// copy this rendered line into the other flash pixmap buffers and then re-render
+	// the flashing cells in those buffers
+	if (rowRefreshed && m_flashBuffersHz > 0) {
+		painter.begin(m_pageImage[3]);
+		painter.setCompositionMode(QPainter::CompositionMode_Source);
+		painter.drawImage(0, r*10, *m_pageImage[0], 0, r*10, 864, 10);
+		painter.end();
+
+		renderRow(r, 3);
+
+		if (m_flashBuffersHz == 2) {
+			painter.begin(m_pageImage[1]);
+			painter.setCompositionMode(QPainter::CompositionMode_Source);
+			painter.drawImage(0, r*10, *m_pageImage[0], 0, r*10, 864, 10);
+			painter.end();
+			painter.begin(m_pageImage[2]);
+			painter.setCompositionMode(QPainter::CompositionMode_Source);
+			painter.drawImage(0, r*10, *m_pageImage[0], 0, r*10, 864, 10);
+			painter.end();
+			painter.begin(m_pageImage[4]);
+			painter.setCompositionMode(QPainter::CompositionMode_Source);
+			painter.drawImage(0, r*10, *m_pageImage[3], 0, r*10, 864, 10);
+			painter.end();
+			painter.begin(m_pageImage[5]);
+			painter.setCompositionMode(QPainter::CompositionMode_Source);
+			painter.drawImage(0, r*10, *m_pageImage[3], 0, r*10, 864, 10);
+			painter.end();
+
+			renderRow(r, 1);
+			renderRow(r, 2);
+			renderRow(r, 4);
+			renderRow(r, 5);
+		}
+	}
+}
+
+void TeletextPageRender::setRowFlashStatus(int r, int rowFlashHz)
+{
+	m_flashingRow[r] = rowFlashHz;
+
+	if (rowFlashHz == m_flashBuffersHz)
+		return;
+
+	if (rowFlashHz < m_flashBuffersHz) {
+		// New flash Hz for this row is lower than the entire screen flash Hz
+		// Check the other rows if they still need flashing at the current flash Hz
+		// If not, reduce the screen flash Hz
+		int highestRowFlashHz = rowFlashHz;
+
+		for (int ri=0; ri<25; ri++)
+			if (m_flashingRow[ri] > highestRowFlashHz) {
+				highestRowFlashHz = m_flashingRow[ri];
+				if (highestRowFlashHz == 2)
+					break;
+			}
+
+		if (highestRowFlashHz > rowFlashHz)
+			rowFlashHz = highestRowFlashHz;
+		if (rowFlashHz == m_flashBuffersHz)
+			return;
+
+		m_flashBuffersHz = rowFlashHz;
+		emit flashChanged(m_flashBuffersHz);
+		return;
+	}
+
+	// If we get here, new flash Hz for this row is higher than the entire flash Hz
+	// so prepare the pixmap flash buffers
+	if (m_flashBuffersHz == 0)
+		*m_pageImage[3] = m_pageImage[0]->copy();
+	if (rowFlashHz == 2) {
+		*m_pageImage[1] = m_pageImage[0]->copy();
+		*m_pageImage[2] = m_pageImage[0]->copy();
+		*m_pageImage[4] = m_pageImage[3]->copy();
+		*m_pageImage[5] = m_pageImage[3]->copy();
+	}
+
+	m_flashBuffersHz = rowFlashHz;
+	emit flashChanged(m_flashBuffersHz);
+}
+
+void TeletextPageRender::colourChanged(int index)
+{
+	for (int r=0; r<25; r++)
+		for (int c=0; c<72; c++) {
+			if (m_decoder->cellForegroundCLUT(r, c) == index || m_decoder->cellBackgroundCLUT(r, c) == index || m_decoder->cellForegroundCLUT(r, c) == 8 || m_decoder->cellBackgroundCLUT(r, c) == 8)
+				m_decoder->setRefresh(r, c, true);
+			if (m_decoder->cellFlashMode(r, c) == 3 && ((m_decoder->cellForegroundCLUT(r, c) ^ 8) == index || (m_decoder->cellForegroundCLUT(r, c) ^ 8) == 8))
+				m_decoder->setRefresh(r, c, true);
+		}
+}
+
+void TeletextPageRender::setReveal(bool reveal)
+{
+	if (reveal == m_reveal)
+		return;
+
+	m_reveal = reveal;
+
+	for (int r=0; r<25; r++)
+		for (int c=0; c<72; c++)
+			if (m_decoder->cellConceal(r, c))
+				m_decoder->setRefresh(r, c, true);
+}
+
+void TeletextPageRender::setRenderMode(RenderMode renderMode)
+{
+	if (renderMode == m_renderMode)
+		return;
+
+	m_renderMode = renderMode;
+
+	for (int r=0; r<25; r++)
+		for (int c=0; c<72; c++)
+			m_decoder->setRefresh(r, c, true);
+}
+
+
+void TeletextPageRender::setShowControlCodes(bool showControlCodes)
+{
+	if (showControlCodes == m_showControlCodes)
+		return;
+
+	m_showControlCodes = showControlCodes;
+
+	for (int r=0; r<25; r++)
+		for (int c=0; c<40; c++)
+			if (m_decoder->teletextPage()->character(r, c) < 0x20)
+				m_decoder->setRefresh(r, c, true);
+}

src/qteletextdecoder/render.h

@@ -0,0 +1,93 @@
+/*
+ * Copyright (C) 2020-2024 Gavin MacGregor
+ *
+ * This file is part of QTeletextMaker.
+ *
+ * QTeletextMaker is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * QTeletextMaker is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with QTeletextMaker.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#ifndef RENDER_H
+#define RENDER_H
+
+#include <QBitmap>
+#include <QColor>
+#include <QIcon>
+#include <QImage>
+#include <QPixmap>
+
+#include "decode.h"
+
+class TeletextFontBitmap
+{
+public:
+	TeletextFontBitmap();
+	~TeletextFontBitmap();
+
+	QImage *image() const { return s_fontImage; }
+	QPixmap charBitmap(int c, int s) const { return s_fontBitmap->copy((c-32)*12, s*10, 12, 10); }
+	QIcon charIcon(int c, int s) const { return QIcon(charBitmap(c, s)); }
+
+private:
+	static int s_instances;
+	static QBitmap* s_fontBitmap;
+	static QImage* s_fontImage;
+};
+
+class TeletextPageRender : public QObject
+{
+	Q_OBJECT
+
+public:
+	enum RenderMode { RenderNormal, RenderMix, RenderWhiteOnBlack, RenderBlackOnWhite };
+
+	TeletextPageRender();
+	~TeletextPageRender();
+
+	QImage* image(int i) const { return m_pageImage[i]; };
+	RenderMode renderMode() const { return m_renderMode; };
+	void setDecoder(TeletextPageDecode *decoder);
+	void renderPage(bool force=false);
+	bool showControlCodes() const { return m_showControlCodes; };
+
+public slots:
+	void colourChanged(int index);
+	void setReveal(bool reveal);
+	void setRenderMode(RenderMode renderMode);
+	void setShowControlCodes(bool showControlCodes);
+
+signals:
+	void flashChanged(int newFlashHz);
+
+protected:
+	TeletextFontBitmap m_fontBitmap;
+	QImage* m_pageImage[6];
+	unsigned char m_controlCodeCache[25][40];
+	RenderMode m_renderMode;
+	bool m_reveal, m_showControlCodes;
+	int m_flashBuffersHz;
+	int m_flashingRow[25];
+
+private:
+	inline void drawFromBitmap(QPainter &, int, int, const QImage, TeletextPageDecode::CharacterFragment);
+	inline void drawFromFontBitmap(QPainter &painter, int r, int c, unsigned char characterCode, int characterSet, TeletextPageDecode::CharacterFragment characterFragment);
+	inline void drawCharacter(QPainter &painter, int r, int c, unsigned char characterCode, int characterSet, int characterDiacritical, TeletextPageDecode::CharacterFragment characterFragment);
+	inline void drawBoldOrItalicCharacter(QPainter &painter, int r, int c, unsigned char characterCode, int characterSet, TeletextPageDecode::CharacterFragment characterFragment);
+	void renderRow(int r, int ph, bool force=false);
+	void setRowFlashStatus(int r, int rowFlashHz);
+
+	QColor m_foregroundQColor, m_backgroundQColor;
+	TeletextPageDecode *m_decoder;
+};
+
+#endif

src/qteletextdecoder/teletextfonts.qrc

@@ -0,0 +1,5 @@
+<!DOCTYPE RCC><RCC version="1.0">
+<qresource>
+	<file>fontimages/teletextfont.png</file>
+</qresource>
+</RCC>

src/qteletextdecoder/x26triplets.cpp

@@ -0,0 +1,323 @@
+/*
+ * Copyright (C) 2020-2024 Gavin MacGregor
+ *
+ * This file is part of QTeletextMaker.
+ *
+ * QTeletextMaker is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * QTeletextMaker is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with QTeletextMaker.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include "x26triplets.h"
+
+X26Triplet::X26Triplet(int address, int mode, int data)
+{
+	m_address = address;
+	m_mode = mode;
+	m_data = data;
+}
+
+void X26Triplet::setAddress(int address)
+{
+	m_address = address;
+}
+
+void X26Triplet::setMode(int mode)
+{
+	m_mode = mode;
+}
+
+void X26Triplet::setData(int data)
+{
+	m_data = data;
+}
+
+void X26Triplet::setAddressRow(int addressRow)
+{
+	m_address = (addressRow == 24) ? 40 : addressRow+40;
+}
+
+void X26Triplet::setAddressColumn(int addressColumn)
+{
+	m_address = addressColumn;
+}
+
+void X26Triplet::setObjectLocalDesignationCode(int i)
+{
+	m_address = (m_address & 0x38) | (i >> 3);
+	m_data = (m_data & 0x0f) | ((i & 0x07) << 4);
+}
+
+void X26Triplet::setObjectLocalTripletNumber(int i)
+{
+	m_data = (m_data & 0x70) | i;
+}
+
+void X26Triplet::setObjectLocalIndex(int i)
+{
+	m_address = (m_address & 0x38) + (i >= 104); // Set bit 0 of address if triplet >= 8
+	m_data = (((i / 13) & 0x07) << 4) | (i % 13);
+}
+
+
+void X26TripletList::updateInternalData()
+{
+	ActivePosition activePosition;
+	X26Triplet *triplet;
+
+	m_objects[0].clear();
+	m_objects[1].clear();
+	m_objects[2].clear();
+
+	// Check for errors, and fill in where the Active Position goes for Level 2.5 and above
+	for (int i=0; i < m_list.size(); i++) {
+		triplet = &m_list[i];
+		triplet->m_error = X26Triplet::NoError;
+		triplet->m_reservedMode = false;
+		triplet->m_reservedData = false;
+
+		if (triplet->isRowTriplet()) {
+			switch (triplet->modeExt()) {
+				case 0x00: // Full screen colour
+					if (activePosition.isDeployed())
+						// TODO more specific error needed
+						triplet->m_error = X26Triplet::ActivePositionMovedUp;
+					if (triplet->m_data & 0x60)
+						triplet->m_reservedData = true;
+					break;
+				case 0x01: // Full row colour
+					if (!activePosition.setRow(triplet->addressRow()))
+						triplet->m_error = X26Triplet::ActivePositionMovedUp;
+					if ((triplet->m_data & 0x60) != 0x00 && (triplet->m_data & 0x60) != 0x60)
+						triplet->m_reservedData = true;
+					break;
+				case 0x04: // Set Active Position;
+					if (!activePosition.setRow(triplet->addressRow()))
+						triplet->m_error = X26Triplet::ActivePositionMovedUp;
+					else if (triplet->data() >= 40)
+						// FIXME data column highlighted?
+						triplet->m_reservedData = true;
+					else if (!activePosition.setColumn(triplet->data()))
+						triplet->m_error = X26Triplet::ActivePositionMovedLeft;
+					break;
+				case 0x07: // Address row 0
+					if (triplet->m_address != 63)
+						// FIXME data column highlighted?
+						triplet->m_reservedData = true;
+					else if (activePosition.isDeployed())
+						triplet->m_error = X26Triplet::ActivePositionMovedUp;
+					else {
+						activePosition.setRow(0);
+						activePosition.setColumn(8);
+					}
+					if ((triplet->m_data & 0x60) != 0x00 && (triplet->m_data & 0x60) != 0x60)
+						triplet->m_reservedData = true;
+					break;
+				case 0x10: // Origin Modifier
+					if (i == m_list.size()-1 ||
+					    m_list.at(i+1).modeExt() < 0x11 ||
+					    m_list.at(i+1).modeExt() > 0x13)
+						triplet->m_error = X26Triplet::OriginModifierAlone;
+					break;
+				case 0x11: // Invoke Active Object
+				case 0x12: // Invoke Adaptive Object
+				case 0x13: // Invoke Passive Object
+					if (triplet->objectSource() == X26Triplet::LocalObject) {
+						if (triplet->objectLocalTripletNumber() > 12 ||
+							triplet->objectLocalIndex() > (m_list.size()-1) ||
+							m_list.at(triplet->objectLocalIndex()).modeExt() < 0x15 ||
+							m_list.at(triplet->objectLocalIndex()).modeExt() > 0x17)
+							triplet->m_error = X26Triplet::InvokePointerInvalid;
+						else if ((triplet->modeExt() | 0x04) != m_list.at(triplet->objectLocalIndex()).modeExt())
+							triplet->m_error = X26Triplet::InvokeTypeMismatch;
+					}
+					break;
+				case 0x15: // Define Active Object
+				case 0x16: // Define Adaptive Object
+				case 0x17: // Define Passive Object
+					m_objects[triplet->modeExt() - 0x15].append(i);
+					activePosition.reset();
+					// Make sure data field holds correct place of triplet
+					// otherwise the object won't appear
+					triplet->setObjectLocalIndex(i);
+					break;
+				case 0x18: // DRCS mode
+					if ((triplet->m_data & 0x30) == 0x00)
+						triplet->m_reservedData = true;
+				case 0x1f: // Termination marker
+				case 0x08: // PDC country of origin & programme source
+				case 0x09: // PDC month & day
+				case 0x0a: // PDC cursor row & announced start hour
+				case 0x0b: // PDC cursor row & announced finish hour
+				case 0x0c: // PDC cursor row & local time offset
+				case 0x0d: // PDC series ID & series code
+					break;
+				default:
+					triplet->m_reservedMode = true;
+			};
+		// Column triplet: all triplets modes except PDC and reserved move the Active Position
+		} else if (triplet->modeExt() == 0x24 || triplet->modeExt() == 0x25 || triplet->modeExt() == 0x2a)
+			triplet->m_reservedMode = true;
+		else if (triplet->modeExt() != 0x26 && !activePosition.setColumn(triplet->addressColumn()))
+			triplet->m_error = X26Triplet::ActivePositionMovedLeft;
+		else
+			switch (triplet->modeExt()) {
+				case 0x20: // Foreground colour
+				case 0x23: // Background colour
+					if (triplet->m_data & 0x60)
+						triplet->m_reservedData = true;
+					break;
+				case 0x27: // Additional flash functions
+					if (triplet->m_data >= 0x18)
+						triplet->m_reservedData = true;
+					break;
+				case 0x28: // Modified G0 and G2 character set
+					if (triplet->m_data > 0x26)
+						switch (triplet->m_data) {
+							case 0x36:
+							case 0x37:
+							case 0x40:
+							case 0x44:
+							case 0x47:
+							case 0x55:
+							case 0x57:
+								break;
+							default:
+								triplet->m_reservedData = true;
+						}
+					break;
+				case 0x2d: // DRCS character
+					if ((triplet->m_data & 0x3f) >= 48)
+						// Should really be an error?
+						triplet->m_reservedData = true;
+					break;
+				case 0x21: // G1 mosaic character
+				case 0x22: // G3 mosaic character at level 1.5
+				case 0x29: // G0 character
+				case 0x2b: // G3 mosaic character at level >=2.5
+				case 0x2f: // G2 character
+					if (triplet->m_data < 0x20)
+						triplet->m_reservedData = true;
+					break;
+				default:
+					if (triplet->modeExt() >= 0x30 && triplet->modeExt() <= 0x3f && triplet->m_data < 0x20)
+						// G0 diacritical mark
+						triplet->m_reservedData = true;
+			}
+
+		triplet->m_activePositionRow = activePosition.row();
+		triplet->m_activePositionColumn = activePosition.column();
+	}
+
+	// Now work out where the Active Position goes on a Level 1.5 decoder
+	activePosition.reset();
+
+	for (int i=0; i < m_list.size(); i++) {
+		triplet = &m_list[i];
+
+		if (triplet->modeExt() == 0x1f) // Termination marker
+			break;
+
+		switch (triplet->modeExt()) {
+			case 0x04: // Set Active Position;
+				activePosition.setRow(triplet->addressRow());
+				break;
+			case 0x07: // Address row 0
+				if (triplet->m_address == 63 && activePosition.setRow(0))
+					activePosition.setColumn(8);
+				break;
+			case 0x22: // G3 mosaic character at level 1.5
+			case 0x2f: // G2 character
+				activePosition.setColumn(triplet->addressColumn());
+
+				if (activePosition.row() != triplet->m_activePositionRow || activePosition.column() != triplet->m_activePositionColumn)
+					triplet->m_activePosition1p5Differs = true;
+				break;
+			default:
+				if (triplet->modeExt() >= 0x30 && triplet->modeExt() <= 0x3f) {
+					// G0 diacritical mark
+					activePosition.setColumn(triplet->addressColumn());
+
+					if (activePosition.row() != triplet->m_activePositionRow || activePosition.column() != triplet->m_activePositionColumn)
+						triplet->m_activePosition1p5Differs = true;
+				}
+		}
+
+		triplet->m_activePositionRow1p5 = activePosition.row();
+		triplet->m_activePositionColumn1p5 = activePosition.column();
+	}
+}
+
+void X26TripletList::append(const X26Triplet &value)
+{
+	m_list.append(value);
+	updateInternalData();
+}
+
+void X26TripletList::insert(int i, const X26Triplet &value)
+{
+	m_list.insert(i, value);
+	updateInternalData();
+}
+
+void X26TripletList::removeAt(int i)
+{
+	m_list.removeAt(i);
+	if (m_list.size() != 0 && i < m_list.size())
+		updateInternalData();
+}
+
+void X26TripletList::replace(int i, const X26Triplet &value)
+{
+	m_list.replace(i, value);
+	updateInternalData();
+}
+
+
+X26TripletList::ActivePosition::ActivePosition()
+{
+	m_row = m_column = -1;
+}
+
+void X26TripletList::ActivePosition::reset()
+{
+	m_row = m_column = -1;
+}
+
+bool X26TripletList::ActivePosition::setRow(int row)
+{
+	if (row < m_row)
+		return false;
+	if (row > m_row) {
+		m_row = row;
+		m_column = -1;
+	}
+	return true;
+}
+
+bool X26TripletList::ActivePosition::setColumn(int column)
+{
+	if (column < m_column)
+		return false;
+	if (m_row == -1 and column >= 0)
+		m_row = 0;
+	m_column = column;
+	return true;
+}
+/*
+bool X26TripletList::ActivePosition::setRowAndColumn(int newRow, int newColumn)
+{
+	if (!setRow(newRow))
+		return false;
+	return setColumn(newColumn);
+}
+*/

src/qteletextdecoder/x26triplets.h

@@ -0,0 +1,128 @@
+/*
+ * Copyright (C) 2020-2024 Gavin MacGregor
+ *
+ * This file is part of QTeletextMaker.
+ *
+ * QTeletextMaker is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * QTeletextMaker is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with QTeletextMaker.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#ifndef X26TRIPLETS_H
+#define X26TRIPLETS_H
+
+#include <QList>
+
+class X26Triplet
+{
+public:
+	// x26model.h has the Plain English descriptions of these errors
+	enum X26TripletError { NoError, ActivePositionMovedUp, ActivePositionMovedLeft, InvokePointerInvalid, InvokeTypeMismatch, OriginModifierAlone };
+	enum ObjectSource { InvalidObjectSource, LocalObject, POPObject, GPOPObject };
+
+	X26Triplet() {}
+//	X26Triplet(const X26Triplet &other);
+
+//	X26Triplet &operator=(const X26Triplet &other);
+
+	X26Triplet(int address, int mode, int data);
+
+	int address() const { return m_address; }
+	int mode() const { return m_mode; }
+	int modeExt() const { return (m_address >= 40) ? m_mode : (m_mode | 0x20); }
+	int data() const { return m_data; }
+	int addressRow() const { return (m_address == 40) ? 24 :m_address-40; }
+	int addressColumn() const { return (m_address); }
+	bool isRowTriplet() const { return (m_address >= 40); }
+
+	void setAddress(int address);
+	void setMode(int mode);
+	void setData(int data);
+	void setAddressRow(int addressRow);
+	void setAddressColumn(int addressColumn);
+
+	int objectSource() const { return (m_address & 0x18) >> 3; }
+
+	int objectLocalDesignationCode() const { return (((m_address & 0x01) << 3) | (m_data >> 4)); }
+	int objectLocalTripletNumber() const { return m_data & 0x0f; }
+	int objectLocalIndex() const { return objectLocalDesignationCode() * 13 + objectLocalTripletNumber(); }
+	void setObjectLocalDesignationCode(int i);
+	void setObjectLocalTripletNumber(int i);
+	void setObjectLocalIndex(int i);
+
+	int activePositionRow() const { return m_activePositionRow; }
+	int activePositionColumn() const { return m_activePositionColumn; }
+	int activePositionRow1p5() const { return m_activePositionRow1p5; }
+	int activePositionColumn1p5() const { return m_activePositionColumn1p5; }
+	X26TripletError error() const { return m_error; }
+	bool reservedMode() const { return m_reservedMode; }
+	bool reservedData() const { return m_reservedData; }
+	bool activePosition1p5Differs() const { return m_activePosition1p5Differs; }
+
+	friend class X26TripletList;
+
+private:
+	// Only these variables are manipulated by the X26Triplet class
+	int m_address, m_mode, m_data;
+	// and the following are filled in by X26TripletList::updateInternalData()
+	int m_activePositionRow = -1;
+	int m_activePositionColumn = -1;
+	int m_activePositionRow1p5 = -1;
+	int m_activePositionColumn1p5 = -1;
+	bool m_activePosition1p5Differs = false;
+	X26TripletError m_error = NoError;
+	bool m_reservedMode = false;
+	bool m_reservedData = false;
+};
+
+class X26TripletList
+{
+public:
+	void append(const X26Triplet &value);
+	void insert(int i, const X26Triplet &value);
+	void removeAt(int i);
+	void replace(int i, const X26Triplet &value);
+
+	void removeLast() { m_list.removeLast(); }
+
+	const X26Triplet &at(int i) const { return m_list.at(i); }
+	bool isEmpty() const { return m_list.isEmpty(); }
+	void reserve(int alloc) { m_list.reserve(alloc); }
+	int size() const { return m_list.size(); }
+	const QList<int> &objects(int t) const { return m_objects[t]; };
+
+private:
+	void updateInternalData();
+
+	QList<X26Triplet> m_list;
+	QList<int> m_objects[3];
+
+	class ActivePosition
+	{
+	public:
+		ActivePosition();
+		void reset();
+//		int row() const { return (m_row == -1) ? 0 : m_row; }
+//		int column() const { return (m_column == -1) ? 0 : m_column; }
+		int row() const { return m_row; }
+		int column() const { return m_column; }
+		bool isDeployed() const { return m_row != -1; }
+		bool setRow(int);
+		bool setColumn(int);
+//		bool setRowAndColumn(int, int);
+
+	private:
+		int m_row, m_column;
+	};
+};
+
+#endif

src/qteletextmaker/actionicons.qrc

@@ -1,6 +1,5 @@
 <!DOCTYPE RCC><RCC version="1.0">
 <qresource>
-	<file>images/teletextfont.png</file>
 	<file>images/copy.png</file>
 	<file>images/cut.png</file>
 	<file>images/new.png</file>

src/qteletextmaker/hamming.h

@@ -0,0 +1,262 @@
+#ifndef HAMMING_H
+#define HAMMING_H
+
+// Hamming 8/4 encoding table
+// encoded_value = hamming_8_4_encode[value_to_encode]
+const unsigned char hamming_8_4_encode[16] = {
+	0x15, 0x02, 0x49, 0x5e, 0x64, 0x73, 0x38, 0x2f,
+	0xd0, 0xc7, 0x8c, 0x9b, 0xa1, 0xb6, 0xfd, 0xea
+};
+
+// Hamming 8/4 decoding table
+// decoded_value = hamming_8_4_decode[encoded_value]
+// 0xff - double bit error that can't be corrected
+const unsigned char hamming_8_4_decode[256] = {
+	0x01, 0xff, 0x01, 0x01, 0xff, 0x00, 0x01, 0xff,
+	0xff, 0x02, 0x01, 0xff, 0x0a, 0xff, 0xff, 0x07,
+	0xff, 0x00, 0x01, 0xff, 0x00, 0x00, 0xff, 0x00,
+	0x06, 0xff, 0xff, 0x0b, 0xff, 0x00, 0x03, 0xff,
+	0xff, 0x0c, 0x01, 0xff, 0x04, 0xff, 0xff, 0x07,
+	0x06, 0xff, 0xff, 0x07, 0xff, 0x07, 0x07, 0x07,
+	0x06, 0xff, 0xff, 0x05, 0xff, 0x00, 0x0d, 0xff,
+	0x06, 0x06, 0x06, 0xff, 0x06, 0xff, 0xff, 0x07,
+	0xff, 0x02, 0x01, 0xff, 0x04, 0xff, 0xff, 0x09,
+	0x02, 0x02, 0xff, 0x02, 0xff, 0x02, 0x03, 0xff,
+	0x08, 0xff, 0xff, 0x05, 0xff, 0x00, 0x03, 0xff,
+	0xff, 0x02, 0x03, 0xff, 0x03, 0xff, 0x03, 0x03,
+	0x04, 0xff, 0xff, 0x05, 0x04, 0x04, 0x04, 0xff,
+	0xff, 0x02, 0x0f, 0xff, 0x04, 0xff, 0xff, 0x07,
+	0xff, 0x05, 0x05, 0x05, 0x04, 0xff, 0xff, 0x05,
+	0x06, 0xff, 0xff, 0x05, 0xff, 0x0e, 0x03, 0xff,
+	0xff, 0x0c, 0x01, 0xff, 0x0a, 0xff, 0xff, 0x09,
+	0x0a, 0xff, 0xff, 0x0b, 0x0a, 0x0a, 0x0a, 0xff,
+	0x08, 0xff, 0xff, 0x0b, 0xff, 0x00, 0x0d, 0xff,
+	0xff, 0x0b, 0x0b, 0x0b, 0x0a, 0xff, 0xff, 0x0b,
+	0x0c, 0x0c, 0xff, 0x0c, 0xff, 0x0c, 0x0d, 0xff,
+	0xff, 0x0c, 0x0f, 0xff, 0x0a, 0xff, 0xff, 0x07,
+	0xff, 0x0c, 0x0d, 0xff, 0x0d, 0xff, 0x0d, 0x0d,
+	0x06, 0xff, 0xff, 0x0b, 0xff, 0x0e, 0x0d, 0xff,
+	0x08, 0xff, 0xff, 0x09, 0xff, 0x09, 0x09, 0x09,
+	0xff, 0x02, 0x0f, 0xff, 0x0a, 0xff, 0xff, 0x09,
+	0x08, 0x08, 0x08, 0xff, 0x08, 0xff, 0xff, 0x09,
+	0x08, 0xff, 0xff, 0x0b, 0xff, 0x0e, 0x03, 0xff,
+	0xff, 0x0c, 0x0f, 0xff, 0x04, 0xff, 0xff, 0x09,
+	0x0f, 0xff, 0x0f, 0x0f, 0xff, 0x0e, 0x0f, 0xff,
+	0x08, 0xff, 0xff, 0x05, 0xff, 0x0e, 0x0d, 0xff,
+	0xff, 0x0e, 0x0f, 0xff, 0x0e, 0x0e, 0xff, 0x0e
+};
+
+const unsigned char hamming_24_18_forward[2][256] = {
+	{
+		0x8b, 0x8c, 0x92, 0x95, 0xa1, 0xa6, 0xb8, 0xbf,
+		0xc0, 0xc7, 0xd9, 0xde, 0xea, 0xed, 0xf3, 0xf4,
+		0x0a, 0x0d, 0x13, 0x14, 0x20, 0x27, 0x39, 0x3e,
+		0x41, 0x46, 0x58, 0x5f, 0x6b, 0x6c, 0x72, 0x75,
+		0x09, 0x0e, 0x10, 0x17, 0x23, 0x24, 0x3a, 0x3d,
+		0x42, 0x45, 0x5b, 0x5c, 0x68, 0x6f, 0x71, 0x76,
+		0x88, 0x8f, 0x91, 0x96, 0xa2, 0xa5, 0xbb, 0xbc,
+		0xc3, 0xc4, 0xda, 0xdd, 0xe9, 0xee, 0xf0, 0xf7,
+		0x08, 0x0f, 0x11, 0x16, 0x22, 0x25, 0x3b, 0x3c,
+		0x43, 0x44, 0x5a, 0x5d, 0x69, 0x6e, 0x70, 0x77,
+		0x89, 0x8e, 0x90, 0x97, 0xa3, 0xa4, 0xba, 0xbd,
+		0xc2, 0xc5, 0xdb, 0xdc, 0xe8, 0xef, 0xf1, 0xf6,
+		0x8a, 0x8d, 0x93, 0x94, 0xa0, 0xa7, 0xb9, 0xbe,
+		0xc1, 0xc6, 0xd8, 0xdf, 0xeb, 0xec, 0xf2, 0xf5,
+		0x0b, 0x0c, 0x12, 0x15, 0x21, 0x26, 0x38, 0x3f,
+		0x40, 0x47, 0x59, 0x5e, 0x6a, 0x6d, 0x73, 0x74,
+		0x03, 0x04, 0x1a, 0x1d, 0x29, 0x2e, 0x30, 0x37,
+		0x48, 0x4f, 0x51, 0x56, 0x62, 0x65, 0x7b, 0x7c,
+		0x82, 0x85, 0x9b, 0x9c, 0xa8, 0xaf, 0xb1, 0xb6,
+		0xc9, 0xce, 0xd0, 0xd7, 0xe3, 0xe4, 0xfa, 0xfd,
+		0x81, 0x86, 0x98, 0x9f, 0xab, 0xac, 0xb2, 0xb5,
+		0xca, 0xcd, 0xd3, 0xd4, 0xe0, 0xe7, 0xf9, 0xfe,
+		0x00, 0x07, 0x19, 0x1e, 0x2a, 0x2d, 0x33, 0x34,
+		0x4b, 0x4c, 0x52, 0x55, 0x61, 0x66, 0x78, 0x7f,
+		0x80, 0x87, 0x99, 0x9e, 0xaa, 0xad, 0xb3, 0xb4,
+		0xcb, 0xcc, 0xd2, 0xd5, 0xe1, 0xe6, 0xf8, 0xff,
+		0x01, 0x06, 0x18, 0x1f, 0x2b, 0x2c, 0x32, 0x35,
+		0x4a, 0x4d, 0x53, 0x54, 0x60, 0x67, 0x79, 0x7e,
+		0x02, 0x05, 0x1b, 0x1c, 0x28, 0x2f, 0x31, 0x36,
+		0x49, 0x4e, 0x50, 0x57, 0x63, 0x64, 0x7a, 0x7d,
+		0x83, 0x84, 0x9a, 0x9d, 0xa9, 0xae, 0xb0, 0xb7,
+		0xc8, 0xcf, 0xd1, 0xd6, 0xe2, 0xe5, 0xfb, 0xfc
+	},
+	{
+		0x00, 0x89, 0x8a, 0x03, 0x8b, 0x02, 0x01, 0x88,
+		0x01, 0x88, 0x8b, 0x02, 0x8a, 0x03, 0x00, 0x89,
+		0x02, 0x8b, 0x88, 0x01, 0x89, 0x00, 0x03, 0x8a,
+		0x03, 0x8a, 0x89, 0x00, 0x88, 0x01, 0x02, 0x8b,
+		0x03, 0x8a, 0x89, 0x00, 0x88, 0x01, 0x02, 0x8b,
+		0x02, 0x8b, 0x88, 0x01, 0x89, 0x00, 0x03, 0x8a,
+		0x01, 0x88, 0x8b, 0x02, 0x8a, 0x03, 0x00, 0x89,
+		0x00, 0x89, 0x8a, 0x03, 0x8b, 0x02, 0x01, 0x88,
+		0x08, 0x81, 0x82, 0x0b, 0x83, 0x0a, 0x09, 0x80,
+		0x09, 0x80, 0x83, 0x0a, 0x82, 0x0b, 0x08, 0x81,
+		0x0a, 0x83, 0x80, 0x09, 0x81, 0x08, 0x0b, 0x82,
+		0x0b, 0x82, 0x81, 0x08, 0x80, 0x09, 0x0a, 0x83,
+		0x0b, 0x82, 0x81, 0x08, 0x80, 0x09, 0x0a, 0x83,
+		0x0a, 0x83, 0x80, 0x09, 0x81, 0x08, 0x0b, 0x82,
+		0x09, 0x80, 0x83, 0x0a, 0x82, 0x0b, 0x08, 0x81,
+		0x08, 0x81, 0x82, 0x0b, 0x83, 0x0a, 0x09, 0x80,
+		0x09, 0x80, 0x83, 0x0a, 0x82, 0x0b, 0x08, 0x81,
+		0x08, 0x81, 0x82, 0x0b, 0x83, 0x0a, 0x09, 0x80,
+		0x0b, 0x82, 0x81, 0x08, 0x80, 0x09, 0x0a, 0x83,
+		0x0a, 0x83, 0x80, 0x09, 0x81, 0x08, 0x0b, 0x82,
+		0x0a, 0x83, 0x80, 0x09, 0x81, 0x08, 0x0b, 0x82,
+		0x0b, 0x82, 0x81, 0x08, 0x80, 0x09, 0x0a, 0x83,
+		0x08, 0x81, 0x82, 0x0b, 0x83, 0x0a, 0x09, 0x80,
+		0x09, 0x80, 0x83, 0x0a, 0x82, 0x0b, 0x08, 0x81,
+		0x01, 0x88, 0x8b, 0x02, 0x8a, 0x03, 0x00, 0x89,
+		0x00, 0x89, 0x8a, 0x03, 0x8b, 0x02, 0x01, 0x88,
+		0x03, 0x8a, 0x89, 0x00, 0x88, 0x01, 0x02, 0x8b,
+		0x02, 0x8b, 0x88, 0x01, 0x89, 0x00, 0x03, 0x8a,
+		0x02, 0x8b, 0x88, 0x01, 0x89, 0x00, 0x03, 0x8a,
+		0x03, 0x8a, 0x89, 0x00, 0x88, 0x01, 0x02, 0x8b,
+		0x00, 0x89, 0x8a, 0x03, 0x8b, 0x02, 0x01, 0x88,
+		0x01, 0x88, 0x8b, 0x02, 0x8a, 0x03, 0x00, 0x89
+	}
+};
+
+const unsigned char hamming_24_18_forward_2[4] = {
+	0x00, 0x0a, 0x0b, 0x01
+};
+
+
+const unsigned char hamming_24_18_parities[3][256] = {
+	{ // Parities of first byte
+		0x00, 0x21, 0x22, 0x03, 0x23, 0x02, 0x01, 0x20, 
+		0x24, 0x05, 0x06, 0x27, 0x07, 0x26, 0x25, 0x04, 
+		0x25, 0x04, 0x07, 0x26, 0x06, 0x27, 0x24, 0x05, 
+		0x01, 0x20, 0x23, 0x02, 0x22, 0x03, 0x00, 0x21, 
+		0x26, 0x07, 0x04, 0x25, 0x05, 0x24, 0x27, 0x06, 
+		0x02, 0x23, 0x20, 0x01, 0x21, 0x00, 0x03, 0x22, 
+		0x03, 0x22, 0x21, 0x00, 0x20, 0x01, 0x02, 0x23, 
+		0x27, 0x06, 0x05, 0x24, 0x04, 0x25, 0x26, 0x07, 
+		0x27, 0x06, 0x05, 0x24, 0x04, 0x25, 0x26, 0x07, 
+		0x03, 0x22, 0x21, 0x00, 0x20, 0x01, 0x02, 0x23, 
+		0x02, 0x23, 0x20, 0x01, 0x21, 0x00, 0x03, 0x22, 
+		0x26, 0x07, 0x04, 0x25, 0x05, 0x24, 0x27, 0x06, 
+		0x01, 0x20, 0x23, 0x02, 0x22, 0x03, 0x00, 0x21, 
+		0x25, 0x04, 0x07, 0x26, 0x06, 0x27, 0x24, 0x05, 
+		0x24, 0x05, 0x06, 0x27, 0x07, 0x26, 0x25, 0x04, 
+		0x00, 0x21, 0x22, 0x03, 0x23, 0x02, 0x01, 0x20, 
+		0x28, 0x09, 0x0a, 0x2b, 0x0b, 0x2a, 0x29, 0x08, 
+		0x0c, 0x2d, 0x2e, 0x0f, 0x2f, 0x0e, 0x0d, 0x2c, 
+		0x0d, 0x2c, 0x2f, 0x0e, 0x2e, 0x0f, 0x0c, 0x2d, 
+		0x29, 0x08, 0x0b, 0x2a, 0x0a, 0x2b, 0x28, 0x09, 
+		0x0e, 0x2f, 0x2c, 0x0d, 0x2d, 0x0c, 0x0f, 0x2e, 
+		0x2a, 0x0b, 0x08, 0x29, 0x09, 0x28, 0x2b, 0x0a, 
+		0x2b, 0x0a, 0x09, 0x28, 0x08, 0x29, 0x2a, 0x0b, 
+		0x0f, 0x2e, 0x2d, 0x0c, 0x2c, 0x0d, 0x0e, 0x2f, 
+		0x0f, 0x2e, 0x2d, 0x0c, 0x2c, 0x0d, 0x0e, 0x2f, 
+		0x2b, 0x0a, 0x09, 0x28, 0x08, 0x29, 0x2a, 0x0b, 
+		0x2a, 0x0b, 0x08, 0x29, 0x09, 0x28, 0x2b, 0x0a, 
+		0x0e, 0x2f, 0x2c, 0x0d, 0x2d, 0x0c, 0x0f, 0x2e, 
+		0x29, 0x08, 0x0b, 0x2a, 0x0a, 0x2b, 0x28, 0x09, 
+		0x0d, 0x2c, 0x2f, 0x0e, 0x2e, 0x0f, 0x0c, 0x2d, 
+		0x0c, 0x2d, 0x2e, 0x0f, 0x2f, 0x0e, 0x0d, 0x2c, 
+		0x28, 0x09, 0x0a, 0x2b, 0x0b, 0x2a, 0x29, 0x08
+	},
+	{ // Parities of second byte
+		0x00, 0x29, 0x2a, 0x03, 0x2b, 0x02, 0x01, 0x28, 
+		0x2c, 0x05, 0x06, 0x2f, 0x07, 0x2e, 0x2d, 0x04, 
+		0x2d, 0x04, 0x07, 0x2e, 0x06, 0x2f, 0x2c, 0x05, 
+		0x01, 0x28, 0x2b, 0x02, 0x2a, 0x03, 0x00, 0x29, 
+		0x2e, 0x07, 0x04, 0x2d, 0x05, 0x2c, 0x2f, 0x06, 
+		0x02, 0x2b, 0x28, 0x01, 0x29, 0x00, 0x03, 0x2a, 
+		0x03, 0x2a, 0x29, 0x00, 0x28, 0x01, 0x02, 0x2b, 
+		0x2f, 0x06, 0x05, 0x2c, 0x04, 0x2d, 0x2e, 0x07, 
+		0x2f, 0x06, 0x05, 0x2c, 0x04, 0x2d, 0x2e, 0x07, 
+		0x03, 0x2a, 0x29, 0x00, 0x28, 0x01, 0x02, 0x2b, 
+		0x02, 0x2b, 0x28, 0x01, 0x29, 0x00, 0x03, 0x2a, 
+		0x2e, 0x07, 0x04, 0x2d, 0x05, 0x2c, 0x2f, 0x06, 
+		0x01, 0x28, 0x2b, 0x02, 0x2a, 0x03, 0x00, 0x29, 
+		0x2d, 0x04, 0x07, 0x2e, 0x06, 0x2f, 0x2c, 0x05, 
+		0x2c, 0x05, 0x06, 0x2f, 0x07, 0x2e, 0x2d, 0x04, 
+		0x00, 0x29, 0x2a, 0x03, 0x2b, 0x02, 0x01, 0x28, 
+		0x30, 0x19, 0x1a, 0x33, 0x1b, 0x32, 0x31, 0x18, 
+		0x1c, 0x35, 0x36, 0x1f, 0x37, 0x1e, 0x1d, 0x34, 
+		0x1d, 0x34, 0x37, 0x1e, 0x36, 0x1f, 0x1c, 0x35, 
+		0x31, 0x18, 0x1b, 0x32, 0x1a, 0x33, 0x30, 0x19, 
+		0x1e, 0x37, 0x34, 0x1d, 0x35, 0x1c, 0x1f, 0x36, 
+		0x32, 0x1b, 0x18, 0x31, 0x19, 0x30, 0x33, 0x1a, 
+		0x33, 0x1a, 0x19, 0x30, 0x18, 0x31, 0x32, 0x1b, 
+		0x1f, 0x36, 0x35, 0x1c, 0x34, 0x1d, 0x1e, 0x37, 
+		0x1f, 0x36, 0x35, 0x1c, 0x34, 0x1d, 0x1e, 0x37, 
+		0x33, 0x1a, 0x19, 0x30, 0x18, 0x31, 0x32, 0x1b, 
+		0x32, 0x1b, 0x18, 0x31, 0x19, 0x30, 0x33, 0x1a, 
+		0x1e, 0x37, 0x34, 0x1d, 0x35, 0x1c, 0x1f, 0x36, 
+		0x31, 0x18, 0x1b, 0x32, 0x1a, 0x33, 0x30, 0x19, 
+		0x1d, 0x34, 0x37, 0x1e, 0x36, 0x1f, 0x1c, 0x35, 
+		0x1c, 0x35, 0x36, 0x1f, 0x37, 0x1e, 0x1d, 0x34, 
+		0x30, 0x19, 0x1a, 0x33, 0x1b, 0x32, 0x31, 0x18
+	},
+	{ // Parities of third byte
+		0x3f, 0x0e, 0x0d, 0x3c, 0x0c, 0x3d, 0x3e, 0x0f, 
+		0x0b, 0x3a, 0x39, 0x08, 0x38, 0x09, 0x0a, 0x3b, 
+		0x0a, 0x3b, 0x38, 0x09, 0x39, 0x08, 0x0b, 0x3a, 
+		0x3e, 0x0f, 0x0c, 0x3d, 0x0d, 0x3c, 0x3f, 0x0e, 
+		0x09, 0x38, 0x3b, 0x0a, 0x3a, 0x0b, 0x08, 0x39, 
+		0x3d, 0x0c, 0x0f, 0x3e, 0x0e, 0x3f, 0x3c, 0x0d, 
+		0x3c, 0x0d, 0x0e, 0x3f, 0x0f, 0x3e, 0x3d, 0x0c, 
+		0x08, 0x39, 0x3a, 0x0b, 0x3b, 0x0a, 0x09, 0x38, 
+		0x08, 0x39, 0x3a, 0x0b, 0x3b, 0x0a, 0x09, 0x38, 
+		0x3c, 0x0d, 0x0e, 0x3f, 0x0f, 0x3e, 0x3d, 0x0c, 
+		0x3d, 0x0c, 0x0f, 0x3e, 0x0e, 0x3f, 0x3c, 0x0d, 
+		0x09, 0x38, 0x3b, 0x0a, 0x3a, 0x0b, 0x08, 0x39, 
+		0x3e, 0x0f, 0x0c, 0x3d, 0x0d, 0x3c, 0x3f, 0x0e, 
+		0x0a, 0x3b, 0x38, 0x09, 0x39, 0x08, 0x0b, 0x3a, 
+		0x0b, 0x3a, 0x39, 0x08, 0x38, 0x09, 0x0a, 0x3b, 
+		0x3f, 0x0e, 0x0d, 0x3c, 0x0c, 0x3d, 0x3e, 0x0f, 
+		0x1f, 0x2e, 0x2d, 0x1c, 0x2c, 0x1d, 0x1e, 0x2f, 
+		0x2b, 0x1a, 0x19, 0x28, 0x18, 0x29, 0x2a, 0x1b, 
+		0x2a, 0x1b, 0x18, 0x29, 0x19, 0x28, 0x2b, 0x1a, 
+		0x1e, 0x2f, 0x2c, 0x1d, 0x2d, 0x1c, 0x1f, 0x2e, 
+		0x29, 0x18, 0x1b, 0x2a, 0x1a, 0x2b, 0x28, 0x19, 
+		0x1d, 0x2c, 0x2f, 0x1e, 0x2e, 0x1f, 0x1c, 0x2d, 
+		0x1c, 0x2d, 0x2e, 0x1f, 0x2f, 0x1e, 0x1d, 0x2c, 
+		0x28, 0x19, 0x1a, 0x2b, 0x1b, 0x2a, 0x29, 0x18, 
+		0x28, 0x19, 0x1a, 0x2b, 0x1b, 0x2a, 0x29, 0x18, 
+		0x1c, 0x2d, 0x2e, 0x1f, 0x2f, 0x1e, 0x1d, 0x2c, 
+		0x1d, 0x2c, 0x2f, 0x1e, 0x2e, 0x1f, 0x1c, 0x2d, 
+		0x29, 0x18, 0x1b, 0x2a, 0x1a, 0x2b, 0x28, 0x19, 
+		0x1e, 0x2f, 0x2c, 0x1d, 0x2d, 0x1c, 0x1f, 0x2e, 
+		0x2a, 0x1b, 0x18, 0x29, 0x19, 0x28, 0x2b, 0x1a, 
+		0x2b, 0x1a, 0x19, 0x28, 0x18, 0x29, 0x2a, 0x1b, 
+		0x1f, 0x2e, 0x2d, 0x1c, 0x2c, 0x1d, 0x1e, 0x2f
+	}
+};
+
+static const unsigned char hamming_24_18_decode_d1_d4[64] = {
+	0x00, 0x01, 0x00, 0x01, 0x02, 0x03, 0x02, 0x03, 
+	0x04, 0x05, 0x04, 0x05, 0x06, 0x07, 0x06, 0x07, 
+	0x08, 0x09, 0x08, 0x09, 0x0a, 0x0b, 0x0a, 0x0b, 
+	0x0c, 0x0d, 0x0c, 0x0d, 0x0e, 0x0f, 0x0e, 0x0f, 
+	0x00, 0x01, 0x00, 0x01, 0x02, 0x03, 0x02, 0x03, 
+	0x04, 0x05, 0x04, 0x05, 0x06, 0x07, 0x06, 0x07, 
+	0x08, 0x09, 0x08, 0x09, 0x0a, 0x0b, 0x0a, 0x0b, 
+	0x0c, 0x0d, 0x0c, 0x0d, 0x0e, 0x0f, 0x0e, 0x0f
+};
+
+// Mapping from parity checks in hamming_24_18_parities to incorrect bit
+// 0x80000000 - double bit error that can't be corrected
+static const unsigned int hamming_24_18_decode_correct[64] = {
+	0x00000000, 0x80000000, 0x80000000, 0x80000000, 
+	0x80000000, 0x80000000, 0x80000000, 0x80000000, 
+	0x80000000, 0x80000000, 0x80000000, 0x80000000, 
+	0x80000000, 0x80000000, 0x80000000, 0x80000000, 
+	0x80000000, 0x80000000, 0x80000000, 0x80000000, 
+	0x80000000, 0x80000000, 0x80000000, 0x80000000, 
+	0x80000000, 0x80000000, 0x80000000, 0x80000000, 
+	0x80000000, 0x80000000, 0x80000000, 0x80000000, 
+	0x00000000, 0x00000000, 0x00000000, 0x00000001, 
+	0x00000000, 0x00000002, 0x00000004, 0x00000008, 
+	0x00000000, 0x00000010, 0x00000020, 0x00000040, 
+	0x00000080, 0x00000100, 0x00000200, 0x00000400, 
+	0x00000000, 0x00000800, 0x00001000, 0x00002000, 
+	0x00004000, 0x00008000, 0x00010000, 0x00020000, 
+	0x80000000, 0x80000000, 0x80000000, 0x80000000, 
+	0x80000000, 0x80000000, 0x80000000, 0x80000000
+};
+
+#endif

src/qteletextmaker/keymap.h

@@ -0,0 +1,545 @@
+/*
+ * Copyright (C) 2020-2024 Gavin MacGregor
+ *
+ * This file is part of QTeletextMaker.
+ *
+ * QTeletextMaker is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * QTeletextMaker is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with QTeletextMaker.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#ifndef KEYMAP_H
+#define KEYMAP_H
+
+#include <QMap>
+
+static const QMap<QChar, char> keymapping[24] = {
+	// Only used by X/26 enhancements, not directly by keyboard
+	{ // 0 Latin G0
+	},
+
+	{ // 1 Cyrillic G0 1 Serbian/Croatian
+		{ QChar(0x0427), 0x40 }, // Ч CYRILLIC CAPITAL LETTER CHE
+		{ QChar(0x0410), 0x41 }, // А CYRILLIC CAPITAL LETTER A
+		{ QChar(0x0411), 0x42 }, // Б CYRILLIC CAPITAL LETTER BE
+		{ QChar(0x0426), 0x43 }, // Ц CYRILLIC CAPITAL LETTER TSE
+		{ QChar(0x0414), 0x44 }, // Д CYRILLIC CAPITAL LETTER DE
+		{ QChar(0x0415), 0x45 }, // Е CYRILLIC CAPITAL LETTER IE
+		{ QChar(0x0424), 0x46 }, // Ф CYRILLIC CAPITAL LETTER EF
+		{ QChar(0x0413), 0x47 }, // Г CYRILLIC CAPITAL LETTER GHE
+		{ QChar(0x0425), 0x48 }, // Х CYRILLIC CAPITAL LETTER HA
+		{ QChar(0x0418), 0x49 }, // И CYRILLIC CAPITAL LETTER I
+		{ QChar(0x0408), 0x4a }, // Ј CYRILLIC CAPITAL LETTER JE
+		{ QChar(0x041a), 0x4b }, // К CYRILLIC CAPITAL LETTER KA
+		{ QChar(0x041b), 0x4c }, // Л CYRILLIC CAPITAL LETTER EL
+		{ QChar(0x041c), 0x4d }, // М CYRILLIC CAPITAL LETTER EM
+		{ QChar(0x041d), 0x4e }, // Н CYRILLIC CAPITAL LETTER EN
+		{ QChar(0x041e), 0x4f }, // О CYRILLIC CAPITAL LETTER O
+		{ QChar(0x041f), 0x50 }, // П CYRILLIC CAPITAL LETTER PE
+		{ QChar(0x040c), 0x51 }, // Ќ CYRILLIC CAPITAL LETTER KJE
+		{ QChar(0x0420), 0x52 }, // Р CYRILLIC CAPITAL LETTER ER
+		{ QChar(0x0421), 0x53 }, // С CYRILLIC CAPITAL LETTER ES
+		{ QChar(0x0422), 0x54 }, // Т CYRILLIC CAPITAL LETTER TE
+		{ QChar(0x0423), 0x55 }, // У CYRILLIC CAPITAL LETTER U
+		{ QChar(0x0412), 0x56 }, // В CYRILLIC CAPITAL LETTER VE
+		{ QChar(0x0403), 0x57 }, // Ѓ CYRILLIC CAPITAL LETTER GJE
+		{ QChar(0x0409), 0x58 }, // Љ CYRILLIC CAPITAL LETTER LJE
+		{ QChar(0x040a), 0x59 }, // Њ CYRILLIC CAPITAL LETTER NJE
+		{ QChar(0x0417), 0x5a }, // З CYRILLIC CAPITAL LETTER ZE
+		{ QChar(0x040b), 0x5b }, // Ћ CYRILLIC CAPITAL LETTER TSHE
+		{ QChar(0x0416), 0x5c }, // Ж CYRILLIC CAPITAL LETTER ZHE
+		{ QChar(0x0402), 0x5d }, // Ђ CYRILLIC CAPITAL LETTER DJE
+		{ QChar(0x0428), 0x5e }, // Ш CYRILLIC CAPITAL LETTER SHA
+		{ QChar(0x040f), 0x5f }, // Џ CYRILLIC CAPITAL LETTER DZHE
+		{ QChar(0x0447), 0x60 }, // ч CYRILLIC SMALL LETTER CHE
+		{ QChar(0x0430), 0x61 }, // а CYRILLIC SMALL LETTER A
+		{ QChar(0x0431), 0x62 }, // б CYRILLIC SMALL LETTER BE
+		{ QChar(0x0446), 0x63 }, // ц CYRILLIC SMALL LETTER TSE
+		{ QChar(0x0434), 0x64 }, // д CYRILLIC SMALL LETTER DE
+		{ QChar(0x0435), 0x65 }, // е CYRILLIC SMALL LETTER IE
+		{ QChar(0x0444), 0x66 }, // ф CYRILLIC SMALL LETTER EF
+		{ QChar(0x0433), 0x67 }, // г CYRILLIC SMALL LETTER GHE
+		{ QChar(0x0445), 0x68 }, // х CYRILLIC SMALL LETTER HA
+		{ QChar(0x0438), 0x69 }, // и CYRILLIC SMALL LETTER I
+		{ QChar(0x0458), 0x6a }, // ј CYRILLIC SMALL LETTER JE
+		{ QChar(0x043a), 0x6b }, // к CYRILLIC SMALL LETTER KA
+		{ QChar(0x043b), 0x6c }, // л CYRILLIC SMALL LETTER EL
+		{ QChar(0x043c), 0x6d }, // м CYRILLIC SMALL LETTER EM
+		{ QChar(0x043d), 0x6e }, // н CYRILLIC SMALL LETTER EN
+		{ QChar(0x043e), 0x6f }, // о CYRILLIC SMALL LETTER O
+		{ QChar(0x043f), 0x70 }, // п CYRILLIC SMALL LETTER PE
+		{ QChar(0x045c), 0x71 }, // ќ CYRILLIC SMALL LETTER KJE
+		{ QChar(0x0440), 0x72 }, // р CYRILLIC SMALL LETTER ER
+		{ QChar(0x0441), 0x73 }, // с CYRILLIC SMALL LETTER ES
+		{ QChar(0x0442), 0x74 }, // т CYRILLIC SMALL LETTER TE
+		{ QChar(0x0443), 0x75 }, // у CYRILLIC SMALL LETTER U
+		{ QChar(0x0432), 0x76 }, // в CYRILLIC SMALL LETTER VE
+		{ QChar(0x0453), 0x77 }, // ѓ CYRILLIC SMALL LETTER GJE
+		{ QChar(0x0459), 0x78 }, // љ CYRILLIC SMALL LETTER LJE
+		{ QChar(0x045a), 0x79 }, // њ CYRILLIC SMALL LETTER NJE
+		{ QChar(0x0437), 0x7a }, // з CYRILLIC SMALL LETTER ZE
+		{ QChar(0x045b), 0x7b }, // ћ CYRILLIC SMALL LETTER TSHE
+		{ QChar(0x0436), 0x7c }, // ж CYRILLIC SMALL LETTER ZHE
+		{ QChar(0x0452), 0x7d }, // ђ CYRILLIC SMALL LETTER DJE
+		{ QChar(0x0448), 0x7e }  // ш CYRILLIC SMALL LETTER SHA
+	},
+
+	{ // 2 Cyrillic G0 2 Russian/Bulgarian
+		{ QChar(0x044b), 0x26 }, // ы CYRILLIC SMALL LETTER YERU
+		{ QChar(0x042e), 0x40 }, // Ю CYRILLIC CAPITAL LETTER YU
+		{ QChar(0x0410), 0x41 }, // А CYRILLIC CAPITAL LETTER A
+		{ QChar(0x0411), 0x42 }, // Б CYRILLIC CAPITAL LETTER BE
+		{ QChar(0x0426), 0x43 }, // Ц CYRILLIC CAPITAL LETTER TSE
+		{ QChar(0x0414), 0x44 }, // Д CYRILLIC CAPITAL LETTER DE
+		{ QChar(0x0415), 0x45 }, // Е CYRILLIC CAPITAL LETTER IE
+		{ QChar(0x0424), 0x46 }, // Ф CYRILLIC CAPITAL LETTER EF
+		{ QChar(0x0413), 0x47 }, // Г CYRILLIC CAPITAL LETTER GHE
+		{ QChar(0x0425), 0x48 }, // Х CYRILLIC CAPITAL LETTER HA
+		{ QChar(0x0418), 0x49 }, // И CYRILLIC CAPITAL LETTER I
+		{ QChar(0x0419), 0x4a }, // Й CYRILLIC CAPITAL LETTER SHORT I
+		{ QChar(0x041a), 0x4b }, // К CYRILLIC CAPITAL LETTER KA
+		{ QChar(0x041b), 0x4c }, // Л CYRILLIC CAPITAL LETTER EL
+		{ QChar(0x041c), 0x4d }, // М CYRILLIC CAPITAL LETTER EM
+		{ QChar(0x041d), 0x4e }, // Н CYRILLIC CAPITAL LETTER EN
+		{ QChar(0x041e), 0x4f }, // О CYRILLIC CAPITAL LETTER O
+		{ QChar(0x041f), 0x50 }, // П CYRILLIC CAPITAL LETTER PE
+		{ QChar(0x042f), 0x51 }, // Я CYRILLIC CAPITAL LETTER YA
+		{ QChar(0x0420), 0x52 }, // Р CYRILLIC CAPITAL LETTER ER
+		{ QChar(0x0421), 0x53 }, // С CYRILLIC CAPITAL LETTER ES
+		{ QChar(0x0422), 0x54 }, // Т CYRILLIC CAPITAL LETTER TE
+		{ QChar(0x0423), 0x55 }, // У CYRILLIC CAPITAL LETTER U
+		{ QChar(0x0416), 0x56 }, // Ж CYRILLIC CAPITAL LETTER ZHE
+		{ QChar(0x0412), 0x57 }, // В CYRILLIC CAPITAL LETTER VE
+		{ QChar(0x042c), 0x58 }, // Ь CYRILLIC CAPITAL LETTER SOFT SIGN
+		{ QChar(0x042a), 0x59 }, // Ъ CYRILLIC CAPITAL LETTER HARD SIGN
+		{ QChar(0x0417), 0x5a }, // З CYRILLIC CAPITAL LETTER ZE
+		{ QChar(0x0428), 0x5b }, // Ш CYRILLIC CAPITAL LETTER SHA
+		{ QChar(0x042d), 0x5c }, // Э CYRILLIC CAPITAL LETTER E
+		{ QChar(0x0429), 0x5d }, // Щ CYRILLIC CAPITAL LETTER SHCHA
+		{ QChar(0x0427), 0x5e }, // Ч CYRILLIC CAPITAL LETTER CHE
+		{ QChar(0x042b), 0x5f }, // Ы CYRILLIC CAPITAL LETTER YERU
+		{ QChar(0x044e), 0x60 }, // ю CYRILLIC SMALL LETTER YU
+		{ QChar(0x0430), 0x61 }, // а CYRILLIC SMALL LETTER A
+		{ QChar(0x0431), 0x62 }, // б CYRILLIC SMALL LETTER BE
+		{ QChar(0x0446), 0x63 }, // ц CYRILLIC SMALL LETTER TSE
+		{ QChar(0x0434), 0x64 }, // д CYRILLIC SMALL LETTER DE
+		{ QChar(0x0435), 0x65 }, // е CYRILLIC SMALL LETTER IE
+		{ QChar(0x0444), 0x66 }, // ф CYRILLIC SMALL LETTER EF
+		{ QChar(0x0433), 0x67 }, // г CYRILLIC SMALL LETTER GHE
+		{ QChar(0x0445), 0x68 }, // х CYRILLIC SMALL LETTER HA
+		{ QChar(0x0438), 0x69 }, // и CYRILLIC SMALL LETTER I
+		{ QChar(0x0439), 0x6a }, // й CYRILLIC SMALL LETTER SHORT I
+		{ QChar(0x043a), 0x6b }, // к CYRILLIC SMALL LETTER KA
+		{ QChar(0x043b), 0x6c }, // л CYRILLIC SMALL LETTER EL
+		{ QChar(0x043c), 0x6d }, // м CYRILLIC SMALL LETTER EM
+		{ QChar(0x043d), 0x6e }, // н CYRILLIC SMALL LETTER EN
+		{ QChar(0x043e), 0x6f }, // о CYRILLIC SMALL LETTER O
+		{ QChar(0x043f), 0x70 }, // п CYRILLIC SMALL LETTER PE
+		{ QChar(0x044f), 0x71 }, // я CYRILLIC SMALL LETTER YA
+		{ QChar(0x0440), 0x72 }, // р CYRILLIC SMALL LETTER ER
+		{ QChar(0x0441), 0x73 }, // с CYRILLIC SMALL LETTER ES
+		{ QChar(0x0442), 0x74 }, // т CYRILLIC SMALL LETTER TE
+		{ QChar(0x0443), 0x75 }, // у CYRILLIC SMALL LETTER U
+		{ QChar(0x0436), 0x76 }, // ж CYRILLIC SMALL LETTER ZHE
+		{ QChar(0x0432), 0x77 }, // в CYRILLIC SMALL LETTER VE
+		{ QChar(0x044c), 0x78 }, // ь CYRILLIC SMALL LETTER SOFT SIGN
+		{ QChar(0x044a), 0x79 }, // ъ CYRILLIC SMALL LETTER HARD SIGN
+		{ QChar(0x0437), 0x7a }, // з CYRILLIC SMALL LETTER ZE
+		{ QChar(0x0448), 0x7b }, // ш CYRILLIC SMALL LETTER SHA
+		{ QChar(0x044d), 0x7c }, // э CYRILLIC SMALL LETTER E
+		{ QChar(0x0449), 0x7d }, // щ CYRILLIC SMALL LETTER SHCHA
+		{ QChar(0x0447), 0x7e }  // ч CYRILLIC SMALL LETTER CHE
+	},
+
+	{ // 3 Cyrillic G0 3 Ukranian
+		{ QChar(0x0457), 0x26 }, // ї CYRILLIC SMALL LETTER YI
+		{ QChar(0x042e), 0x40 }, // Ю CYRILLIC CAPITAL LETTER YU
+		{ QChar(0x0410), 0x41 }, // А CYRILLIC CAPITAL LETTER A
+		{ QChar(0x0411), 0x42 }, // Б CYRILLIC CAPITAL LETTER BE
+		{ QChar(0x0426), 0x43 }, // Ц CYRILLIC CAPITAL LETTER TSE
+		{ QChar(0x0414), 0x44 }, // Д CYRILLIC CAPITAL LETTER DE
+		{ QChar(0x0415), 0x45 }, // Е CYRILLIC CAPITAL LETTER IE
+		{ QChar(0x0424), 0x46 }, // Ф CYRILLIC CAPITAL LETTER EF
+		{ QChar(0x0413), 0x47 }, // Г CYRILLIC CAPITAL LETTER GHE
+		{ QChar(0x0425), 0x48 }, // Х CYRILLIC CAPITAL LETTER HA
+		{ QChar(0x0418), 0x49 }, // И CYRILLIC CAPITAL LETTER I
+		{ QChar(0x0419), 0x4a }, // Й CYRILLIC CAPITAL LETTER SHORT I
+		{ QChar(0x041a), 0x4b }, // К CYRILLIC CAPITAL LETTER KA
+		{ QChar(0x041b), 0x4c }, // Л CYRILLIC CAPITAL LETTER EL
+		{ QChar(0x041c), 0x4d }, // М CYRILLIC CAPITAL LETTER EM
+		{ QChar(0x041d), 0x4e }, // Н CYRILLIC CAPITAL LETTER EN
+		{ QChar(0x041e), 0x4f }, // О CYRILLIC CAPITAL LETTER O
+		{ QChar(0x041f), 0x50 }, // П CYRILLIC CAPITAL LETTER PE
+		{ QChar(0x042f), 0x51 }, // Я CYRILLIC CAPITAL LETTER YA
+		{ QChar(0x0420), 0x52 }, // Р CYRILLIC CAPITAL LETTER ER
+		{ QChar(0x0421), 0x53 }, // С CYRILLIC CAPITAL LETTER ES
+		{ QChar(0x0422), 0x54 }, // Т CYRILLIC CAPITAL LETTER TE
+		{ QChar(0x0423), 0x55 }, // У CYRILLIC CAPITAL LETTER U
+		{ QChar(0x0416), 0x56 }, // Ж CYRILLIC CAPITAL LETTER ZHE
+		{ QChar(0x0412), 0x57 }, // В CYRILLIC CAPITAL LETTER VE
+		{ QChar(0x042c), 0x58 }, // Ь CYRILLIC CAPITAL LETTER SOFT SIGN
+		{ QChar(0x0406), 0x59 }, // І CYRILLIC CAPITAL LETTER BYELORUSSIAN-UKRAINIAN I
+		{ QChar(0x0417), 0x5a }, // З CYRILLIC CAPITAL LETTER ZE
+		{ QChar(0x0428), 0x5b }, // Ш CYRILLIC CAPITAL LETTER SHA
+		{ QChar(0x0404), 0x5c }, // Є CYRILLIC CAPITAL LETTER UKRAINIAN IE
+		{ QChar(0x0429), 0x5d }, // Щ CYRILLIC CAPITAL LETTER SHCHA
+		{ QChar(0x0427), 0x5e }, // Ч CYRILLIC CAPITAL LETTER CHE
+		{ QChar(0x0407), 0x5f }, // Ї CYRILLIC CAPITAL LETTER YI
+		{ QChar(0x044e), 0x60 }, // ю CYRILLIC SMALL LETTER YU
+		{ QChar(0x0430), 0x61 }, // а CYRILLIC SMALL LETTER A
+		{ QChar(0x0431), 0x62 }, // б CYRILLIC SMALL LETTER BE
+		{ QChar(0x0446), 0x63 }, // ц CYRILLIC SMALL LETTER TSE
+		{ QChar(0x0434), 0x64 }, // д CYRILLIC SMALL LETTER DE
+		{ QChar(0x0435), 0x65 }, // е CYRILLIC SMALL LETTER IE
+		{ QChar(0x0444), 0x66 }, // ф CYRILLIC SMALL LETTER EF
+		{ QChar(0x0433), 0x67 }, // г CYRILLIC SMALL LETTER GHE
+		{ QChar(0x0445), 0x68 }, // х CYRILLIC SMALL LETTER HA
+		{ QChar(0x0438), 0x69 }, // и CYRILLIC SMALL LETTER I
+		{ QChar(0x0439), 0x6a }, // й CYRILLIC SMALL LETTER SHORT I
+		{ QChar(0x043a), 0x6b }, // к CYRILLIC SMALL LETTER KA
+		{ QChar(0x043b), 0x6c }, // л CYRILLIC SMALL LETTER EL
+		{ QChar(0x043c), 0x6d }, // м CYRILLIC SMALL LETTER EM
+		{ QChar(0x043d), 0x6e }, // н CYRILLIC SMALL LETTER EN
+		{ QChar(0x043e), 0x6f }, // о CYRILLIC SMALL LETTER O
+		{ QChar(0x043f), 0x70 }, // п CYRILLIC SMALL LETTER PE
+		{ QChar(0x044f), 0x71 }, // я CYRILLIC SMALL LETTER YA
+		{ QChar(0x0440), 0x72 }, // р CYRILLIC SMALL LETTER ER
+		{ QChar(0x0441), 0x73 }, // с CYRILLIC SMALL LETTER ES
+		{ QChar(0x0442), 0x74 }, // т CYRILLIC SMALL LETTER TE
+		{ QChar(0x0443), 0x75 }, // у CYRILLIC SMALL LETTER U
+		{ QChar(0x0436), 0x76 }, // ж CYRILLIC SMALL LETTER ZHE
+		{ QChar(0x0432), 0x77 }, // в CYRILLIC SMALL LETTER VE
+		{ QChar(0x044c), 0x78 }, // ь CYRILLIC SMALL LETTER SOFT SIGN
+		{ QChar(0x0456), 0x79 }, // і CYRILLIC SMALL LETTER BYELORUSSIAN-UKRAINIAN I
+		{ QChar(0x0437), 0x7a }, // з CYRILLIC SMALL LETTER ZE
+		{ QChar(0x0448), 0x7b }, // ш CYRILLIC SMALL LETTER SHA
+		{ QChar(0x0454), 0x7c }, // є CYRILLIC SMALL LETTER UKRAINIAN IE
+		{ QChar(0x0449), 0x7d }, // щ CYRILLIC SMALL LETTER SHCHA
+		{ QChar(0x0447), 0x7e }  // ч CYRILLIC SMALL LETTER CHE
+	},
+
+	{ // 4 Greek
+		{ QChar(0x0390), 0x40 }, // ΐ GREEK SMALL LETTER IOTA WITH DIALYTIKA AND TONOS
+		{ QChar(0x0391), 0x41 }, // Α GREEK CAPITAL LETTER ALPHA
+		{ QChar(0x0392), 0x42 }, // Β GREEK CAPITAL LETTER BETA
+		{ QChar(0x0393), 0x43 }, // Γ GREEK CAPITAL LETTER GAMMA
+		{ QChar(0x0394), 0x44 }, // Δ GREEK CAPITAL LETTER DELTA
+		{ QChar(0x0395), 0x45 }, // Ε GREEK CAPITAL LETTER EPSILON
+		{ QChar(0x0396), 0x46 }, // Ζ GREEK CAPITAL LETTER ZETA
+		{ QChar(0x0397), 0x47 }, // Η GREEK CAPITAL LETTER ETA
+		{ QChar(0x0398), 0x48 }, // Θ GREEK CAPITAL LETTER THETA
+		{ QChar(0x0399), 0x49 }, // Ι GREEK CAPITAL LETTER IOTA
+		{ QChar(0x039a), 0x4a }, // Κ GREEK CAPITAL LETTER KAPPA
+		{ QChar(0x039b), 0x4b }, // Λ GREEK CAPITAL LETTER LAMBDA
+		{ QChar(0x039c), 0x4c }, // Μ GREEK CAPITAL LETTER MU
+		{ QChar(0x039d), 0x4d }, // Ν GREEK CAPITAL LETTER NU
+		{ QChar(0x039e), 0x4e }, // Ξ GREEK CAPITAL LETTER XI
+		{ QChar(0x039f), 0x4f }, // Ο GREEK CAPITAL LETTER OMICRON
+		{ QChar(0x03a0), 0x50 }, // Π GREEK CAPITAL LETTER PI
+		{ QChar(0x03a1), 0x51 }, // Ρ GREEK CAPITAL LETTER RHO
+		{ QChar(0x03a3), 0x53 }, // Σ GREEK CAPITAL LETTER SIGMA
+		{ QChar(0x03a4), 0x54 }, // Τ GREEK CAPITAL LETTER TAU
+		{ QChar(0x03a5), 0x55 }, // Υ GREEK CAPITAL LETTER UPSILON
+		{ QChar(0x03a6), 0x56 }, // Φ GREEK CAPITAL LETTER PHI
+		{ QChar(0x03a7), 0x57 }, // Χ GREEK CAPITAL LETTER CHI
+		{ QChar(0x03a8), 0x58 }, // Ψ GREEK CAPITAL LETTER PSI
+		{ QChar(0x03a9), 0x59 }, // Ω GREEK CAPITAL LETTER OMEGA
+		{ QChar(0x03aa), 0x5a }, // Ϊ GREEK CAPITAL LETTER IOTA WITH DIALYTIKA
+		{ QChar(0x03ab), 0x5b }, // Ϋ GREEK CAPITAL LETTER UPSILON WITH DIALYTIKA
+		{ QChar(0x03ac), 0x5c }, // ά GREEK SMALL LETTER ALPHA WITH TONOS
+		{ QChar(0x03ad), 0x5d }, // έ GREEK SMALL LETTER EPSILON WITH TONOS
+		{ QChar(0x03ae), 0x5e }, // ή GREEK SMALL LETTER ETA WITH TONOS
+		{ QChar(0x03af), 0x5f }, // ί GREEK SMALL LETTER IOTO WITH TONOS
+		{ QChar(0x03b0), 0x60 }, // ΰ GREEK SMALL LETTER UPSILON WITH DIALYTIKA AND TONOS
+		{ QChar(0x03b1), 0x61 }, // α GREEK SMALL LETTER ALPHA
+		{ QChar(0x03b2), 0x62 }, // β GREEK SMALL LETTER BETA
+		{ QChar(0x03b3), 0x63 }, // γ GREEK SMALL LETTER GAMMA
+		{ QChar(0x03b4), 0x64 }, // δ GREEK SMALL LETTER DELTA
+		{ QChar(0x03b5), 0x65 }, // ε GREEK SMALL LETTER EPSILON
+		{ QChar(0x03b6), 0x66 }, // ζ GREEK SMALL LETTER ZETA
+		{ QChar(0x03b7), 0x67 }, // η GREEK SMALL LETTER ETA
+		{ QChar(0x03b8), 0x68 }, // θ GREEK SMALL LETTER THETA
+		{ QChar(0x03b9), 0x69 }, // ι GREEK SMALL LETTER IOTA
+		{ QChar(0x03ba), 0x6a }, // κ GREEK SMALL LETTER KAPPA
+		{ QChar(0x03bb), 0x6b }, // λ GREEK SMALL LETTER LAMBDA
+		{ QChar(0x03bc), 0x6c }, // μ GREEK SMALL LETTER MU
+		{ QChar(0x03bd), 0x6d }, // ν GREEK SMALL LETTER NU
+		{ QChar(0x03be), 0x6e }, // ξ GREEK SMALL LETTER XI
+		{ QChar(0x03bf), 0x6f }, // ο GREEK SMALL LETTER OMICRON
+		{ QChar(0x03c0), 0x70 }, // π GREEK SMALL LETTER PI
+		{ QChar(0x03c1), 0x71 }, // ρ GREEK SMALL LETTER RHO
+		{ QChar(0x03c2), 0x72 }, // ς GREEK SMALL LETTER FINAL SIGMA
+		{ QChar(0x03c3), 0x73 }, // σ GREEK SMALL LETTER SIGMA
+		{ QChar(0x03c4), 0x74 }, // τ GREEK SMALL LETTER TAU
+		{ QChar(0x03c5), 0x75 }, // υ GREEK SMALL LETTER UPSILON
+		{ QChar(0x03c6), 0x76 }, // φ GREEK SMALL LETTER PHI
+		{ QChar(0x03c7), 0x77 }, // χ GREEK SMALL LETTER CHI
+		{ QChar(0x03c8), 0x78 }, // ψ GREEK SMALL LETTER PSI
+		{ QChar(0x03c9), 0x79 }, // ω GREEK SMALL LETTER OMEGA
+		{ QChar(0x03ca), 0x7a }, // ϊ GREEK SMALL LETTER IOTA WITH DIALYTIKA
+		{ QChar(0x03cb), 0x7b }, // ϋ GREEK SMALL LETTER UPSILON WITH DIALYTIKA
+		{ QChar(0x03cc), 0x7c }, // ό GREEK SMALL LETTER OMICRON WITH TONOS
+		{ QChar(0x03cd), 0x7d }, // ύ GREEK SMALL LETTER UPSILON WITH TONOS
+		{ QChar(0x03ce), 0x7e }  // ώ GREEK SMALL LETTER OMEGA WITH TONOS
+	},
+
+	{ // TODO 5 Arabic G0
+	},
+
+	{ // 6 Hebrew G0
+		{ QChar(0x05d0), 0x60 }, // א HEBREW LETTER ALEF
+		{ QChar(0x05d1), 0x61 }, // ב HEBREW LETTER BET
+		{ QChar(0x05d2), 0x62 }, // ג HEBREW LETTER GIMEL
+		{ QChar(0x05d3), 0x63 }, // ד HEBREW LETTER DALET
+		{ QChar(0x05d4), 0x64 }, // ה HEBREW LETTER HE
+		{ QChar(0x05d5), 0x65 }, // ו HEBREW LETTER VAV
+		{ QChar(0x05d6), 0x66 }, // ז HEBREW LETTER ZAYIN
+		{ QChar(0x05d7), 0x67 }, // ח HEBREW LETTER HET
+		{ QChar(0x05d8), 0x68 }, // ט HEBREW LETTER TET
+		{ QChar(0x05d9), 0x69 }, // י HEBREW LETTER YOD
+		{ QChar(0x05da), 0x6a }, // ך HEBREW LETTER FINAL KAF
+		{ QChar(0x05db), 0x6b }, // כ HEBREW LETTER KAF
+		{ QChar(0x05dc), 0x6c }, // ל HEBREW LETTER LAMED
+		{ QChar(0x05dd), 0x6d }, // ם HEBREW LETTER FINAL MEM
+		{ QChar(0x05de), 0x6e }, // מ HEBREW LETTER MEM
+		{ QChar(0x05df), 0x6f }, // ן HEBREW LETTER FINAL NUN
+		{ QChar(0x05e0), 0x70 }, // נ HEBREW LETTER NUN
+		{ QChar(0x05e1), 0x71 }, // ס HEBREW LETTER SAMEKH
+		{ QChar(0x05e2), 0x72 }, // ע HEBREW LETTER AYIN
+		{ QChar(0x05e3), 0x73 }, // ף HEBREW LETTER FINAL PE
+		{ QChar(0x05e4), 0x74 }, // פ HEBREW LETTER PE
+		{ QChar(0x05e5), 0x75 }, // ץ HEBREW LETTER FINAL TSADI
+		{ QChar(0x05e6), 0x76 }, // צ HEBREW LETTER TSADI
+		{ QChar(0x05e7), 0x77 }, // ק HEBREW LETTER QOF
+		{ QChar(0x05e8), 0x78 }, // ר HEBREW LETTER RESH
+		{ QChar(0x05e9), 0x79 }, // ש HEBREW LETTER SHIN
+		{ QChar(0x05ea), 0x7a }, // ת HEBREW LETTER TAV
+		{ QChar(0x20aa), 0x7b }, // ₪ NEW SHEQEL SIGN
+		{ QChar(0x00be), 0x7d }, // ½ VULGAR FRACTION THREE QUARTERS
+		{ QChar(0x00f7), 0x7e }  // ÷ DIVISION SIGN
+	},
+
+	// Only used by X/26 enhancements, not directly by keyboard
+	{ // 7 Latin G2
+	},
+	{ // 8 Cyrillic G2
+	},
+	{ // 9 Greek G2
+	},
+	{ // 10 Arabic G2
+	},
+
+	{ // 11 Czech/Slovak
+		{ QChar(0x016f), 0x24 }, // ů LATIN SMALL LETTER U WITH RING ABOVE
+		{ QChar(0x010d), 0x40 }, // č LATIN SMALL LETTER C WITH CARON
+		{ QChar(0x0165), 0x5b }, // ť LATIN SMALL LETTER T WITH CARON
+		{ QChar(0x017e), 0x5c }, // ž LATIN SMALL LETTER Z WITH CARON
+		{ QChar(0x00fd), 0x5d }, // ý LATIN SMALL LETTER Y WITH ACUTE
+		{ QChar(0x00ed), 0x5e }, // í LATIN SMALL LETTER I WITH ACUTE
+		{ QChar(0x0159), 0x5f }, // ř LATIN SMALL LETTER R WITH CARON
+		{ QChar(0x00e9), 0x60 }, // é LATIN SMALL LETTER E WITH ACUTE
+		{ QChar(0x00e1), 0x7b }, // á LATIN SMALL LETTER A WITH ACUTE
+		{ QChar(0x011b), 0x7c }, // ě LATIN SMALL LETTER E WITH CARON
+		{ QChar(0x00fa), 0x7d }, // ú LATIN SMALL LETTER U WITH ACUTE
+		{ QChar(0x0161), 0x7e }  // š LATIN SMALL LETTER S WITH CARON
+	},
+
+	{ // 12 English
+		{ QChar(0x00a3), 0x23 }, // £ POUND SIGN
+		{ QChar(0x0023), 0x5f }, // # NUMBER SIGN
+		{ QChar(0x005f), 0x60 }, // ─ LOW LINE - rendered as U+2500 BOX DRAWINGS LIGHT HORIZONTAL
+
+		{ QChar(0x00bc), 0x7b }, // ¼ VULGAR FRACTION ONE QUARTER
+		{ QChar(0x00bd), 0x5c }, // ½ VULGAR FRACTION ONE HALF
+		{ QChar(0x00be), 0x7b }, // ¾ VULGAR FRACTION THREE QUARTERS
+		{ QChar(0x00f7), 0x7e }  // ÷ DIVISION SIGN
+	},
+
+	{ // 13 Estonian
+		{ QChar(0x00f5), 0x24 }, // õ LATIN SMALL LETTER O WITH TILDE
+		{ QChar(0x0160), 0x40 }, // Š LATIN CAPITAL LETTER S WITH CARON
+		{ QChar(0x00c4), 0x5b }, // Ä LATIN CAPITAL LETTER A WITH DIAERESIS
+		{ QChar(0x00d6), 0x5c }, // Ö LATIN CAPITAL LETTER O WITH DIAERESIS
+		{ QChar(0x017d), 0x5d }, // Ž LATIN CAPITAL LETTER Z WITH CARON
+		{ QChar(0x00dc), 0x5e }, // Ü LATIN CAPITAL LETTER U WITH DIAERESIS
+		{ QChar(0x00d5), 0x5f }, // Õ LATIN CAPITAL LETTER O WITH TILDE
+		{ QChar(0x0161), 0x60 }, // š LATIN SMALL LETTER S WITH CARON
+		{ QChar(0x00e4), 0x7b }, // ä LATIN SMALL LETTER A WITH DIAERESIS
+		{ QChar(0x00f6), 0x7c }, // ö LATIN SMALL LETTER O WITH DIAERESIS
+		{ QChar(0x017e), 0x7d }, // ž LATIN SMALL LETTER Z WITH CARON
+		{ QChar(0x00fc), 0x7e }  // ü LATIN SMALL LETTER U WITH DIAERESIS
+	},
+
+	{ // 14 French - aze qsd wxc
+		{ QChar(0x00e9), 0x23 }, // é LATIN SMALL LETTER E WITH ACUTE
+		{ QChar(0x00ef), 0x24 }, // ï LATIN SMALL LETTER I WITH DIAERESIS
+		{ QChar(0x00e0), 0x40 }, // à LATIN SMALL LETTER A WITH GRAVE
+		{ QChar(0x00eb), 0x5b }, // ë LATIN SMALL LETTER E WITH DIAERESIS
+		{ QChar(0x00ea), 0x5c }, // ê LATIN SMALL LETTER E WITH CIRCUMFLEX
+		{ QChar(0x00f9), 0x5d }, // ù LATIN SMALL LETTER U WITH GRAVE
+		{ QChar(0x00ee), 0x5e }, // î LATIN SMALL LETTER I WITH CIRCUMFLEX
+		{ QChar(0x0023), 0x5f }, // # NUMBER SIGN
+		{ QChar(0x00e8), 0x60 }, // è LATIN SMALL LETTER E WITH GRAVE
+		{ QChar(0x00e2), 0x7b }, // â LATIN SMALL LETTER A WITH CIRCUMFLEX
+		{ QChar(0x00f4), 0x7c }, // ô LATIN SMALL LETTER O WITH CIRCUMFLEX
+		{ QChar(0x00fb), 0x7d }, // û LATIN SMALL LETTER U WITH CIRCUMFLEX
+		{ QChar(0x00e7), 0x7e }  // ç LATIN SMALL LETTER C WITH CEDILLA
+	},
+
+	{ // 15 German
+		{ QChar(0x00a7), 0x40 }, // § SECTION SIGN
+		{ QChar(0x00c4), 0x5b }, // Ä LATIN CAPITAL LETTER A WITH DIAERESIS
+		{ QChar(0x00d6), 0x5c }, // Ö LATIN CAPITAL LETTER O WITH DIAERESIS
+		{ QChar(0x00dc), 0x5d }, // Ü LATIN CAPITAL LETTER U WITH DIAERESIS
+		{ QChar(0x00b0), 0x60 }, // ° DEGREE SIGN
+		{ QChar(0x00e4), 0x7b }, // ä LATIN SMALL LETTER A WITH DIAERESIS
+		{ QChar(0x00f6), 0x7c }, // ö LATIN SMALL LETTER O WITH DIAERESIS
+		{ QChar(0x00fc), 0x7d }, // ü LATIN SMALL LETTER U WITH DIAERESIS
+		{ QChar(0x00df), 0x7e }  // ß LATIN SMALL LETTER SHARP S
+	},
+
+	{ // 16 Italian
+		{ QChar(0x00a3), 0x23 }, // £ POUND SIGN
+		{ QChar(0x00e9), 0x40 }, // é LATIN SMALL LETTER E WITH ACUTE
+		{ QChar(0x00b0), 0x5b }, // ° DEGREE SIGN
+		{ QChar(0x00e7), 0x5c }, // ç LATIN SMALL LETTER C WITH CEDILLA
+		{ QChar(0x0023), 0x5f }, // # NUMBER SIGN
+		{ QChar(0x00f9), 0x60 }, // ù LATIN SMALL LETTER U WITH GRAVE
+		{ QChar(0x00e0), 0x7b }, // à LATIN SMALL LETTER A WITH GRAVE
+		{ QChar(0x00f2), 0x7c }, // ò LATIN SMALL LETTER O WITH GRAVE
+		{ QChar(0x00e8), 0x7d }, // è LATIN SMALL LETTER E WITH GRAVE
+		{ QChar(0x00ec), 0x7e }  // ì LATIN SMALL LETTER I WITH GRAVE
+	},
+
+	{ // 17 Lettish/Lithuanian
+		{ QChar(0x0160), 0x40 }, // Š LATIN CAPITAL LETTER S WITH CARON
+		{ QChar(0x0117), 0x5b }, // ė LATIN SMALL LETTER E WITH DOT ABOVE
+		{ QChar(0x0119), 0x5c }, // ę LATIN SMALL LETTER E WITH OGONEK
+		{ QChar(0x017d), 0x5d }, // Ž LATIN CAPITAL LETTER Z WITH CARON
+		{ QChar(0x010d), 0x5e }, // č LATIN SMALL LETTER C WITH CARON
+		{ QChar(0x016b), 0x5f }, // ū LATIN SMALL LETTER U WITH MACRON
+		{ QChar(0x0161), 0x60 }, // š LATIN SMALL LETTER S WITH CARON
+		{ QChar(0x0105), 0x7b }, // ą LATIN SMALL LETTER A WITH OGONEK
+		{ QChar(0x0173), 0x7c }, // ų LATIN SMALL LETTER U WITH OGONEK
+		{ QChar(0x017e), 0x7d }, // ž LATIN SMALL LETTER Z WITH CARON
+		{ QChar(0x012f), 0x7e }  // į LATIN SMALL LETTER I WITH OGONEK
+	},
+
+	{ // 18 Polish
+		{ QChar(0x0144), 0x24 }, // ń LATIN SMALL LETTER N WITH ACUTE
+		{ QChar(0x0105), 0x40 }, // ą LATIN SMALL LETTER A WITH OGONEK
+		{ QChar(0x017b), 0x5b }, // Ż LATIN CAPITAL LETTER Z WITH DOT ABOVE - rendered as U+01B5 ...WITH STROKE
+		{ QChar(0x015a), 0x5c }, // Ś LATIN CAPITAL LETTER S WITH ACUTE
+		{ QChar(0x0141), 0x5d }, // Ł LATIN CAPITAL LETTER L WITH STROKE
+		{ QChar(0x0107), 0x5e }, // ć LATIN SMALL LETTER C WITH ACUTE
+		{ QChar(0x00f3), 0x5f }, // ó LATIN SMALL LETTER O WITH ACUTE
+		{ QChar(0x0119), 0x60 }, // ę LATIN SMALL LETTER E WITH OGONEK
+		{ QChar(0x017c), 0x7b }, // ż LATIN SMALL LETTER Z WITH DOT ABOVE
+		{ QChar(0x015b), 0x7c }, // ś LATIN SMALL LETTER S WITH ACUTE
+		{ QChar(0x0142), 0x7d }, // ł LATIN SMALL LETTER L WITH STROKE
+		{ QChar(0x017a), 0x7e }  // ź LATIN SMALL LETTER Z WITH ACUTE
+	},
+
+	{ // 19 Portuguese/Spanish
+		{ QChar(0x00e7), 0x23 }, // ç LATIN SMALL LETTER C WITH CEDILLA
+		{ QChar(0x00a1), 0x40 }, // ¡ INVERTED EXCLAMATION MARK
+		{ QChar(0x00e1), 0x5b }, // á LATIN SMALL LETTER A WITH ACUTE
+		{ QChar(0x00e9), 0x5c }, // é LATIN SMALL LETTER E WITH ACUTE
+		{ QChar(0x00ed), 0x5d }, // í LATIN SMALL LETTER I WITH ACUTE
+		{ QChar(0x00f3), 0x5e }, // ó LATIN SMALL LETTER O WITH ACUTE
+		{ QChar(0x00fa), 0x5f }, // ú LATIN SMALL LETTER U WITH ACUTE
+		{ QChar(0x00bf), 0x60 }, // ¿ INVERTED QUESTION MARK
+		{ QChar(0x00fc), 0x7b }, // ü LATIN SMALL LETTER U WITH DIAERESIS
+		{ QChar(0x00f1), 0x7c }, // ñ LATIN SMALL LETTER N WITH TILDE
+		{ QChar(0x00e8), 0x7d }, // è LATIN SMALL LETTER E WITH GRAVE
+		{ QChar(0x00e0), 0x7e }  // à LATIN SMALL LETTER A WITH GRAVE
+	},
+
+	{ // 20 Rumanian
+		{ QChar(0x00a4), 0x24 }, // ¤ CURRENCY SIGN
+		{ QChar(0x021a), 0x40 }, // Ț LATIN CAPITAL LETTER T WITH COMMA BELOW
+		{ QChar(0x00c2), 0x5b }, // Â LATIN CAPITAL LETTER A WITH CIRCUMFLEX
+		{ QChar(0x0218), 0x5c }, // Ș LATIN CAPITAL LETTER S WITH COMMA BELOW
+		{ QChar(0x0102), 0x5d }, // Ă LATIN CAPITAL LETTER A WITH BREVE
+		{ QChar(0x00c3), 0x5e }, // Î LATIN CAPITAL LETTER I WITH CIRCUMFLEX
+		{ QChar(0x0131), 0x5f }, // ı LATIN SMALL LETTER DOTLESS I
+		{ QChar(0x021b), 0x60 }, // ț LATIN SMALL LETTER T WITH COMMA BELOW
+		{ QChar(0x00e2), 0x7b }, // â LATIN SMALL LETTER A WITH CIRCUMFLEX
+		{ QChar(0x0219), 0x7c }, // ș LATIN SMALL LETTER S WITH COMMA BELOW
+		{ QChar(0x0103), 0x7d }, // ă LATIN SMALL LETTER A WITH BREVE
+		{ QChar(0x00ee), 0x7e }  // î LATIN SMALL LETTER I WITH CIRCUMFLEX
+	},
+
+	{ // 21 Serbian/Croatian/Slovenian
+		{ QChar(0x00cb), 0x24 }, // Ë LATIN CAPITAL LETTER E WITH DIAERESIS
+		{ QChar(0x010c), 0x40 }, // Č LATIN CAPITAL LETTER C WITH CARON
+		{ QChar(0x0106), 0x5b }, // Ć LATIN CAPITAL LETTER C WITH ACUTE
+		{ QChar(0x017d), 0x5c }, // Ž LATIN CAPITAL LETTER Z WITH CARON
+		{ QChar(0x0110), 0x5d }, // Đ LATIN CAPITAL LETTER D WITH STROKE
+		{ QChar(0x0160), 0x5e }, // Š LATIN CAPITAL LETTER S WITH CARON
+		{ QChar(0x00eb), 0x5f }, // ë LATIN SMALL LETTER E WITH DIAERESIS
+		{ QChar(0x010d), 0x60 }, // č LATIN SMALL LETTER C WITH CARON
+		{ QChar(0x0107), 0x7b }, // ć LATIN SMALL LETTER C WITH ACUTE
+		{ QChar(0x017e), 0x7c }, // ž LATIN SMALL LETTER Z WITH CARON
+		{ QChar(0x0111), 0x7d }, // đ LATIN SMALL LETTER D WITH STROKE
+		{ QChar(0x0161), 0x7e }  // š LATIN SMALL LETTER S WITH CARON
+	},
+
+	{ // 22 Swedish/Finnish/Hungarian
+		{ QChar(0x00a4), 0x24 }, // ¤ CURRENCY SIGN
+		{ QChar(0x00c9), 0x40 }, // É LATIN CAPITAL LETTER E WITH ACUTE
+		{ QChar(0x00c4), 0x5b }, // Ä LATIN CAPITAL LETTER A WITH DIAERESIS
+		{ QChar(0x00d6), 0x5c }, // Ö LATIN CAPITAL LETTER O WITH DIAERESIS
+		{ QChar(0x00c5), 0x5d }, // Å LATIN CAPITAL LETTER A WITH RING ABOVE
+		{ QChar(0x00dc), 0x5e }, // Ü LATIN CAPITAL LETTER U WITH DIAERESIS
+		{ QChar(0x00e9), 0x60 }, // é LATIN SMALL LETTER E WITH ACUTE
+		{ QChar(0x00e4), 0x7b }, // ä LATIN SMALL LETTER A WITH DIAERESIS
+		{ QChar(0x00f6), 0x7c }, // ö LATIN SMALL LETTER O WITH DIAERESIS
+		{ QChar(0x00e5), 0x7d }, // å LATIN SMALL LETTER A WITH RING ABOVE
+		{ QChar(0x00fc), 0x7e }  // ü LATIN SMALL LETTER U WITH DIAERESIS
+	},
+
+	{ // 23 Turkish
+		{ QChar(0x20ba), 0x23 }, // ₺ TURKISH LIRA SIGN
+		{ QChar(0x011f), 0x24 }, // ğ LATIN SMALL LETTER G WITH BREVE
+		{ QChar(0x0130), 0x40 }, // İ LATIN CAPITAL LETTER I WITH DOT ABOVE
+		{ QChar(0x015e), 0x5b }, // Ş LATIN CAPITAL LETTER S WITH CEDILLA
+		{ QChar(0x00d6), 0x5c }, // Ö LATIN CAPITAL LETTER O WITH DIAERESIS
+		{ QChar(0x00c7), 0x5d }, // Ç LATIN CAPITAL LETTER C WITH CEDILLA
+		{ QChar(0x00dc), 0x5e }, // Ü LATIN CAPITAL LETTER U WITH DIAERESIS
+		{ QChar(0x011e), 0x5f }, // Ğ LATIN CAPITAL LETTER G WITH BREVE
+		{ QChar(0x0131), 0x60 }, // ı LATIN SMALL LETTER DOTLESS I
+		{ QChar(0x015f), 0x7b }, // ş LATIN SMALL LETTER S WITH CEDILLA
+		{ QChar(0x00f6), 0x7c }, // ö LATIN SMALL LETTER O WITH DIAERESIS
+		{ QChar(0x00e7), 0x7d }, // ç LATIN SMALL LETTER C WITH CEDILLA
+		{ QChar(0x00fc), 0x7e }  // ü LATIN SMALL LETTER U WITH DIAERESIS
+	}
+};
+
+
+// Native scan codes to toggle mosaic bits - different platforms have different scan codes!
+// Order is top left, top right, middle left, middle right, bottom left, bottom right,
+// invert, set all, clear all, dither
+
+#ifdef Q_OS_UNIX
+static constexpr quint32 mosaicNativeScanCodes[10] = {
+	0x18, 0x19, 0x26, 0x27, 0x34, 0x35, 0x1b, 0x29, 0x36, 0x28
+};
+#elif defined(Q_OS_WIN)
+static constexpr quint32 mosaicNativeScanCodes[10] = {
+	0x10, 0x11, 0x1e, 0x1f, 0x2c, 0x2d, 0x13, 0x21, 0x2e, 0x20
+};
+#else
+#define QTTM_NONATIVESCANCODES
+#endif
+
+#endif

src/qteletextmaker/levelonecommands.cpp

@@ -0,0 +1,948 @@
+/*
+ * Copyright (C) 2020-2024 Gavin MacGregor
+ *
+ * This file is part of QTeletextMaker.
+ *
+ * QTeletextMaker is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * QTeletextMaker is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with QTeletextMaker.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include <QApplication>
+#include <QByteArray>
+#include <QByteArrayList>
+#include <QClipboard>
+#include <QImage>
+#include <QMimeData>
+#include <QRegularExpression>
+#include <QSet>
+
+#include "levelonecommands.h"
+
+#include "document.h"
+#include "keymap.h"
+
+LevelOneCommand::LevelOneCommand(TeletextDocument *teletextDocument, QUndoCommand *parent) : QUndoCommand(parent)
+{
+	m_teletextDocument = teletextDocument;
+	m_subPageIndex = teletextDocument->currentSubPageIndex();
+	m_row = teletextDocument->cursorRow();
+	m_column = teletextDocument->cursorColumn();
+	m_firstDo = true;
+}
+
+QByteArrayList LevelOneCommand::storeCharacters(int topRow, int leftColumn, int bottomRow, int rightColumn)
+{
+	QByteArrayList result;
+
+	for (int r=topRow; r<=bottomRow; r++) {
+		QByteArray rowArray;
+
+		for (int c=leftColumn; c<=rightColumn; c++)
+			// Guard against size of pasted block going beyond last line or column
+			if (r < 25 && c < 40)
+				rowArray.append(m_teletextDocument->currentSubPage()->character(r, c));
+			else
+				// Gone beyond last line or column - store a filler character which we won't see
+				// Not sure if this is really necessary as out-of-bounds access might not occur?
+				rowArray.append(0x7f);
+
+		result.append(rowArray);
+	}
+
+	return result;
+}
+
+void LevelOneCommand::retrieveCharacters(int topRow, int leftColumn, const QByteArrayList &storedChars)
+{
+	const int bottomRow = topRow + storedChars.size() - 1;
+	const int rightColumn = leftColumn + storedChars.at(0).size() - 1;
+
+	int arrayR = 0;
+	int arrayC;
+
+	for (int r=topRow; r<=bottomRow; r++) {
+		arrayC = 0;
+		for (int c=leftColumn; c<=rightColumn; c++)
+			// Guard against size of pasted block going beyond last line or column
+			if (r < 25 && c < 40) {
+				m_teletextDocument->currentSubPage()->setCharacter(r, c, storedChars.at(arrayR).at(arrayC));
+
+				arrayC++;
+			}
+
+		arrayR++;
+	}
+}
+
+
+TypeCharacterCommand::TypeCharacterCommand(TeletextDocument *teletextDocument, unsigned char newCharacter, bool insertMode, QUndoCommand *parent) : LevelOneCommand(teletextDocument, parent)
+{
+	m_columnStart = m_columnEnd = m_column;
+	m_newCharacter = newCharacter;
+	m_insertMode = insertMode;
+
+	for (int c=0; c<40; c++)
+		m_oldRowContents[c] = m_newRowContents[c] = m_teletextDocument->currentSubPage()->character(m_row, c);
+
+	if (m_insertMode)
+		setText(QObject::tr("insert character"));
+	else
+		setText(QObject::tr("overwrite character"));
+}
+
+void TypeCharacterCommand::redo()
+{
+	m_teletextDocument->selectSubPageIndex(m_subPageIndex);
+
+	// Only apply the typed character on the first do, m_newRowContents will remember it if we redo
+	if (m_firstDo) {
+		if (m_insertMode) {
+			// Insert - Move characters rightwards
+			for (int c=39; c>m_columnEnd; c--)
+				m_newRowContents[c] = m_newRowContents[c-1];
+		}
+		m_newRowContents[m_columnEnd] = m_newCharacter;
+		m_firstDo = false;
+	}
+	for (int c=0; c<40; c++)
+		m_teletextDocument->currentSubPage()->setCharacter(m_row, c, m_newRowContents[c]);
+
+	m_teletextDocument->moveCursor(m_row, m_columnEnd);
+	m_teletextDocument->cursorRight();
+	emit m_teletextDocument->contentsChanged();
+}
+
+void TypeCharacterCommand::undo()
+{
+	m_teletextDocument->selectSubPageIndex(m_subPageIndex);
+
+	for (int c=0; c<40; c++)
+		m_teletextDocument->currentSubPage()->setCharacter(m_row, c, m_oldRowContents[c]);
+
+	m_teletextDocument->moveCursor(m_row, m_columnStart);
+	emit m_teletextDocument->contentsChanged();
+}
+
+bool TypeCharacterCommand::mergeWith(const QUndoCommand *command)
+{
+	const TypeCharacterCommand *newerCommand = static_cast<const TypeCharacterCommand *>(command);
+
+	// Has to be the next typed column on the same row
+	if (m_subPageIndex != newerCommand->m_subPageIndex || m_row != newerCommand->m_row || m_columnEnd != newerCommand->m_columnEnd-1)
+		return false;
+
+	m_columnEnd = newerCommand->m_columnEnd;
+	for (int c=0; c<40; c++)
+		m_newRowContents[c] = newerCommand->m_newRowContents[c];
+
+	return true;
+}
+
+
+ToggleMosaicBitCommand::ToggleMosaicBitCommand(TeletextDocument *teletextDocument, unsigned char bitToToggle, QUndoCommand *parent) : LevelOneCommand(teletextDocument, parent)
+{
+	m_oldCharacter = teletextDocument->currentSubPage()->character(m_row, m_column);
+
+	if (bitToToggle == 0x20 || bitToToggle == 0x7f)
+		// Clear or fill the whole mosaic character
+		m_newCharacter = bitToToggle;
+	else if (bitToToggle == 0x66)
+		// Dither
+		m_newCharacter = (m_row & 1) ? 0x66 : 0x39;
+	else if (m_oldCharacter & 0x20)
+		// Previous character was mosaic, just toggle the bit(s)
+		m_newCharacter = m_oldCharacter ^ bitToToggle;
+	else
+		// Previous character was blast-through, change to mosaic and set bit alone
+		m_newCharacter = bitToToggle | 0x20;
+
+	setText(QObject::tr("mosaic"));
+
+}
+
+void ToggleMosaicBitCommand::redo()
+{
+	m_teletextDocument->selectSubPageIndex(m_subPageIndex);
+	m_teletextDocument->currentSubPage()->setCharacter(m_row, m_column, m_newCharacter);
+
+	m_teletextDocument->moveCursor(m_row, m_column);
+	emit m_teletextDocument->contentsChanged();
+}
+
+void ToggleMosaicBitCommand::undo()
+{
+	m_teletextDocument->selectSubPageIndex(m_subPageIndex);
+	m_teletextDocument->currentSubPage()->setCharacter(m_row, m_column, m_oldCharacter);
+
+	m_teletextDocument->moveCursor(m_row, m_column);
+	emit m_teletextDocument->contentsChanged();
+}
+
+bool ToggleMosaicBitCommand::mergeWith(const QUndoCommand *command)
+{
+	const ToggleMosaicBitCommand *newerCommand = static_cast<const ToggleMosaicBitCommand *>(command);
+
+	if (m_subPageIndex != newerCommand->m_subPageIndex || m_row != newerCommand->m_row || m_column != newerCommand->m_column)
+		return false;
+	m_newCharacter = newerCommand->m_newCharacter;
+	return true;
+}
+
+
+BackspaceKeyCommand::BackspaceKeyCommand(TeletextDocument *teletextDocument, bool insertMode, QUndoCommand *parent) : LevelOneCommand(teletextDocument, parent)
+{
+	m_columnStart = m_column - 1;
+
+	if (m_columnStart == -1) {
+		m_columnStart = 39;
+		if (--m_row == 0)
+			m_row = 24;
+	}
+	m_columnEnd = m_columnStart;
+	m_insertMode = insertMode;
+
+	for (int c=0; c<40; c++)
+		m_oldRowContents[c] = m_newRowContents[c] = m_teletextDocument->currentSubPage()->character(m_row, c);
+
+	setText(QObject::tr("backspace"));
+}
+
+void BackspaceKeyCommand::redo()
+{
+	m_teletextDocument->selectSubPageIndex(m_subPageIndex);
+
+	if (m_firstDo) {
+		if (m_insertMode) {
+			// Insert - Move characters leftwards and put a space on the far right
+			for (int c=m_columnEnd; c<39; c++)
+				m_newRowContents[c] = m_newRowContents[c+1];
+			m_newRowContents[39] = 0x20;
+		} else
+			// Replace - Overwrite backspaced character with a space
+			m_newRowContents[m_columnEnd] = 0x20;
+		m_firstDo = false;
+	}
+
+	for (int c=0; c<40; c++)
+		m_teletextDocument->currentSubPage()->setCharacter(m_row, c, m_newRowContents[c]);
+
+	m_teletextDocument->moveCursor(m_row, m_columnEnd);
+	emit m_teletextDocument->contentsChanged();
+}
+
+void BackspaceKeyCommand::undo()
+{
+	m_teletextDocument->selectSubPageIndex(m_subPageIndex);
+
+	for (int c=0; c<40; c++)
+		m_teletextDocument->currentSubPage()->setCharacter(m_row, c, m_oldRowContents[c]);
+
+	m_teletextDocument->moveCursor(m_row, m_columnStart);
+	m_teletextDocument->cursorRight();
+	emit m_teletextDocument->contentsChanged();
+}
+
+bool BackspaceKeyCommand::mergeWith(const QUndoCommand *command)
+{
+	const BackspaceKeyCommand *newerCommand = static_cast<const BackspaceKeyCommand *>(command);
+
+	// Has to be the next backspaced column on the same row
+	if (m_subPageIndex != newerCommand->m_subPageIndex || m_row != newerCommand->m_row || m_columnEnd != newerCommand->m_columnEnd+1)
+		return false;
+
+	// For backspacing m_columnStart is where we began backspacing and m_columnEnd is where we ended backspacing
+	// so m_columnEnd will be less than m_columnStart
+	m_columnEnd = newerCommand->m_columnEnd;
+	for (int c=0; c<40; c++)
+		m_newRowContents[c] = newerCommand->m_newRowContents[c];
+
+	return true;
+}
+
+
+DeleteKeyCommand::DeleteKeyCommand(TeletextDocument *teletextDocument, QUndoCommand *parent) : LevelOneCommand(teletextDocument, parent)
+{
+	for (int c=0; c<40; c++)
+		m_oldRowContents[c] = m_newRowContents[c] = m_teletextDocument->currentSubPage()->character(m_row, c);
+
+	setText(QObject::tr("delete"));
+}
+
+void DeleteKeyCommand::redo()
+{
+	m_teletextDocument->selectSubPageIndex(m_subPageIndex);
+
+	// Move characters leftwards and put a space on the far right
+	for (int c=m_column; c<39; c++)
+		m_newRowContents[c] = m_newRowContents[c+1];
+	m_newRowContents[39] = 0x20;
+
+	for (int c=0; c<40; c++)
+		m_teletextDocument->currentSubPage()->setCharacter(m_row, c, m_newRowContents[c]);
+
+	m_teletextDocument->moveCursor(m_row, m_column);
+	emit m_teletextDocument->contentsChanged();
+}
+
+void DeleteKeyCommand::undo()
+{
+	m_teletextDocument->selectSubPageIndex(m_subPageIndex);
+
+	for (int c=0; c<40; c++)
+		m_teletextDocument->currentSubPage()->setCharacter(m_row, c, m_oldRowContents[c]);
+
+	m_teletextDocument->moveCursor(m_row, m_column);
+	emit m_teletextDocument->contentsChanged();
+}
+
+bool DeleteKeyCommand::mergeWith(const QUndoCommand *command)
+{
+	const DeleteKeyCommand *newerCommand = static_cast<const DeleteKeyCommand *>(command);
+
+	if (m_subPageIndex != newerCommand->m_subPageIndex || m_row != newerCommand->m_row || m_column != newerCommand->m_column)
+		return false;
+
+	for (int c=0; c<40; c++)
+		m_newRowContents[c] = newerCommand->m_newRowContents[c];
+
+	return true;
+}
+
+
+ShiftMosaicsCommand::ShiftMosaicsCommand(TeletextDocument *teletextDocument, const QSet<QPair<int, int>> &mosaicList, QUndoCommand *parent) : LevelOneCommand(teletextDocument, parent)
+{
+	m_selectionTopRow = m_teletextDocument->selectionTopRow();
+	m_selectionLeftColumn = m_teletextDocument->selectionLeftColumn();
+	m_selectionBottomRow = m_teletextDocument->selectionBottomRow();
+	m_selectionRightColumn = m_teletextDocument->selectionRightColumn();
+
+	m_selectionCornerRow = m_teletextDocument->selectionCornerRow();
+	m_selectionCornerColumn = m_teletextDocument->selectionCornerColumn();
+
+	m_mosaicList = mosaicList;
+
+	m_oldCharacters = storeCharacters(m_selectionTopRow, m_selectionLeftColumn, m_selectionBottomRow, m_selectionRightColumn);
+	m_newCharacters = m_oldCharacters;
+}
+
+void ShiftMosaicsCommand::redo()
+{
+	m_teletextDocument->selectSubPageIndex(m_subPageIndex);
+	retrieveCharacters(m_selectionTopRow, m_selectionLeftColumn, m_newCharacters);
+
+	emit m_teletextDocument->contentsChanged();
+
+	m_teletextDocument->setSelectionCorner(m_selectionCornerRow, m_selectionCornerColumn);
+	m_teletextDocument->moveCursor(m_row, m_column, true);
+}
+
+void ShiftMosaicsCommand::undo()
+{
+	m_teletextDocument->selectSubPageIndex(m_subPageIndex);
+	retrieveCharacters(m_selectionTopRow, m_selectionLeftColumn, m_oldCharacters);
+
+	emit m_teletextDocument->contentsChanged();
+
+	m_teletextDocument->setSelectionCorner(m_selectionCornerRow, m_selectionCornerColumn);
+	m_teletextDocument->moveCursor(m_row, m_column, true);
+}
+
+bool ShiftMosaicsCommand::mergeWith(const QUndoCommand *command)
+{
+	const ShiftMosaicsCommand *newerCommand = static_cast<const ShiftMosaicsCommand *>(command);
+
+	if (m_subPageIndex != newerCommand->m_subPageIndex || m_selectionTopRow != newerCommand->m_selectionTopRow || m_selectionLeftColumn != newerCommand->m_selectionLeftColumn || m_selectionBottomRow != newerCommand->m_selectionBottomRow || m_selectionRightColumn != newerCommand->m_selectionRightColumn)
+		return false;
+
+	m_newCharacters = newerCommand->m_newCharacters;
+
+	return true;
+}
+
+ShiftMosaicsUpCommand::ShiftMosaicsUpCommand(TeletextDocument *teletextDocument, const QSet<QPair<int, int>> &mosaicList, QUndoCommand *parent) : ShiftMosaicsCommand(teletextDocument, mosaicList, parent)
+{
+	for (int r=m_selectionTopRow; r<=m_selectionBottomRow; r++)
+		for (int c=m_selectionLeftColumn; c<=m_selectionRightColumn; c++)
+			if (m_mosaicList.contains(qMakePair(r, c))) {
+				const int lr = r - m_selectionTopRow;
+				const int lc = c - m_selectionLeftColumn;
+				unsigned char mosaicWrap = 0x00;
+
+				for (int sr=r+1; sr<=m_selectionBottomRow; sr++)
+					if (m_mosaicList.contains(qMakePair(sr, c))) {
+						mosaicWrap = m_newCharacters[sr - m_selectionTopRow][lc];
+						mosaicWrap = ((mosaicWrap & 0x01) << 4) | ((mosaicWrap & 0x02) << 5);
+						break;
+					}
+
+				m_newCharacters[lr][lc] = ((m_newCharacters[lr][lc] >> 2) & 0x07) | ((m_newCharacters[lr][lc] & 0x40) >> 3) | mosaicWrap | 0x20;
+			}
+
+	setText(QObject::tr("shift mosaics up"));
+}
+
+ShiftMosaicsDownCommand::ShiftMosaicsDownCommand(TeletextDocument *teletextDocument, const QSet<QPair<int, int>> &mosaicList, QUndoCommand *parent) : ShiftMosaicsCommand(teletextDocument, mosaicList, parent)
+{
+	for (int r=m_selectionBottomRow; r>=m_selectionTopRow; r--)
+		for (int c=m_selectionLeftColumn; c<=m_selectionRightColumn; c++)
+			if (m_mosaicList.contains(qMakePair(r, c))) {
+				const int lr = r - m_selectionTopRow;
+				const int lc = c - m_selectionLeftColumn;
+				unsigned char mosaicWrap = 0x00;
+
+				for (int sr=r-1; sr>=m_selectionTopRow; sr--)
+					if (m_mosaicList.contains(qMakePair(sr, c))) {
+						mosaicWrap = m_newCharacters[sr - m_selectionTopRow][lc];
+						mosaicWrap = ((mosaicWrap & 0x10) >> 4) | ((mosaicWrap & 0x40) >> 5);
+						break;
+					}
+
+				m_newCharacters[lr][lc] = ((m_newCharacters[lr][lc] & 0x07) << 2) | ((m_newCharacters[lr][lc] & 0x08) << 3) | mosaicWrap | 0x20;
+			}
+
+	setText(QObject::tr("shift mosaics down"));
+}
+
+ShiftMosaicsLeftCommand::ShiftMosaicsLeftCommand(TeletextDocument *teletextDocument, const QSet<QPair<int, int>> &mosaicList, QUndoCommand *parent) : ShiftMosaicsCommand(teletextDocument, mosaicList, parent)
+{
+	for (int c=m_selectionLeftColumn; c<=m_selectionRightColumn; c++)
+		for (int r=m_selectionTopRow; r<=m_selectionBottomRow; r++)
+			if (m_mosaicList.contains(qMakePair(r, c))) {
+				const int lr = r - m_selectionTopRow;
+				const int lc = c - m_selectionLeftColumn;
+				unsigned char mosaicWrap = 0x00;
+
+				for (int sc=c+1; sc<=m_selectionRightColumn; sc++)
+					if (m_mosaicList.contains(qMakePair(r, sc))) {
+						mosaicWrap = m_newCharacters[lr][sc - m_selectionLeftColumn];
+						mosaicWrap = ((mosaicWrap & 0x05) << 1) | ((mosaicWrap & 0x10) << 2);
+						break;
+					}
+
+				m_newCharacters[lr][lc] = ((m_newCharacters[lr][lc] & 0x0a) >> 1) | ((m_newCharacters[lr][lc] & 0x40) >> 2) | mosaicWrap | 0x20;
+			}
+
+	setText(QObject::tr("shift mosaics left"));
+}
+
+ShiftMosaicsRightCommand::ShiftMosaicsRightCommand(TeletextDocument *teletextDocument, const QSet<QPair<int, int>> &mosaicList, QUndoCommand *parent) : ShiftMosaicsCommand(teletextDocument, mosaicList, parent)
+{
+	for (int c=m_selectionRightColumn; c>=m_selectionLeftColumn; c--)
+		for (int r=m_selectionTopRow; r<=m_selectionBottomRow; r++)
+			if (m_mosaicList.contains(qMakePair(r, c))) {
+				const int lr = r - m_selectionTopRow;
+				const int lc = c - m_selectionLeftColumn;
+				unsigned char mosaicWrap = 0x00;
+
+				for (int sc=c-1; sc>=m_selectionLeftColumn; sc--)
+					if (m_mosaicList.contains(qMakePair(r, sc))) {
+						mosaicWrap = m_newCharacters[lr][sc - m_selectionLeftColumn];
+						mosaicWrap = ((mosaicWrap & 0x0a) >> 1) | ((mosaicWrap & 0x40) >> 2);
+						break;
+					}
+
+				m_newCharacters[lr][lc] = ((m_newCharacters[lr][lc] & 0x05) << 1) | ((m_newCharacters[lr][lc] & 0x10) << 2) | mosaicWrap | 0x20;
+			}
+
+	setText(QObject::tr("shift mosaics right"));
+}
+
+
+InsertRowCommand::InsertRowCommand(TeletextDocument *teletextDocument, bool copyRow, QUndoCommand *parent) : LevelOneCommand(teletextDocument, parent)
+{
+	m_copyRow = copyRow;
+
+	if (m_copyRow)
+		setText(QObject::tr("insert copy row"));
+	else
+		setText(QObject::tr("insert blank row"));
+}
+
+void InsertRowCommand::redo()
+{
+	m_teletextDocument->selectSubPageIndex(m_subPageIndex);
+	m_teletextDocument->moveCursor(m_row, -1);
+	// Store copy of the bottom row we're about to push out, for undo
+	for (int c=0; c<40; c++)
+		m_deletedBottomRow[c] = m_teletextDocument->currentSubPage()->character(23, c);
+	// Move lines below the inserting row downwards without affecting the FastText row
+	for (int r=22; r>=m_row; r--)
+		for (int c=0; c<40; c++)
+			m_teletextDocument->currentSubPage()->setCharacter(r+1, c, m_teletextDocument->currentSubPage()->character(r, c));
+	if (!m_copyRow)
+		// The above movement leaves a duplicate of the current row, so blank it if requested
+		for (int c=0; c<40; c++)
+			m_teletextDocument->currentSubPage()->setCharacter(m_row, c, ' ');
+
+	emit m_teletextDocument->contentsChanged();
+}
+
+void InsertRowCommand::undo()
+{
+	m_teletextDocument->selectSubPageIndex(m_subPageIndex);
+	m_teletextDocument->moveCursor(m_row, -1);
+	// Move lines below the deleting row upwards without affecting the FastText row
+	for (int r=m_row; r<23; r++)
+		for (int c=0; c<40; c++)
+			m_teletextDocument->currentSubPage()->setCharacter(r, c, m_teletextDocument->currentSubPage()->character(r+1, c));
+	// Now repair the bottom row we pushed out
+	for (int c=0; c<40; c++)
+		m_teletextDocument->currentSubPage()->setCharacter(23, c, m_deletedBottomRow[c]);
+
+	emit m_teletextDocument->contentsChanged();
+}
+
+
+DeleteRowCommand::DeleteRowCommand(TeletextDocument *teletextDocument, QUndoCommand *parent) : LevelOneCommand(teletextDocument, parent)
+{
+	setText(QObject::tr("delete row"));
+}
+
+void DeleteRowCommand::redo()
+{
+	m_teletextDocument->selectSubPageIndex(m_subPageIndex);
+	m_teletextDocument->moveCursor(m_row, -1);
+	// Store copy of the row we're going to delete, for undo
+	for (int c=0; c<40; c++)
+		m_deletedRow[c] = m_teletextDocument->currentSubPage()->character(m_row, c);
+	// Move lines below the deleting row upwards without affecting the FastText row
+	for (int r=m_row; r<23; r++)
+		for (int c=0; c<40; c++)
+			m_teletextDocument->currentSubPage()->setCharacter(r, c, m_teletextDocument->currentSubPage()->character(r+1, c));
+	// If we deleted the FastText row blank that row, otherwise blank the last row
+	int blankingRow = (m_row < 24) ? 23 : 24;
+		for (int c=0; c<40; c++)
+			m_teletextDocument->currentSubPage()->setCharacter(blankingRow, c, ' ');
+
+	emit m_teletextDocument->contentsChanged();
+}
+
+void DeleteRowCommand::undo()
+{
+	m_teletextDocument->selectSubPageIndex(m_subPageIndex);
+	m_teletextDocument->moveCursor(m_row, -1);
+	// Move lines below the inserting row downwards without affecting the FastText row
+	for (int r=22; r>=m_row; r--)
+		for (int c=0; c<40; c++)
+			m_teletextDocument->currentSubPage()->setCharacter(r+1, c, m_teletextDocument->currentSubPage()->character(r, c));
+	// Now repair the row we deleted
+	for (int c=0; c<40; c++)
+		m_teletextDocument->currentSubPage()->setCharacter(m_row, c, m_deletedRow[c]);
+
+	emit m_teletextDocument->contentsChanged();
+}
+
+
+#ifndef QT_NO_CLIPBOARD
+CutCommand::CutCommand(TeletextDocument *teletextDocument, QUndoCommand *parent) : LevelOneCommand(teletextDocument, parent)
+{
+	m_selectionTopRow = m_teletextDocument->selectionTopRow();
+	m_selectionBottomRow = m_teletextDocument->selectionBottomRow();
+	m_selectionLeftColumn = m_teletextDocument->selectionLeftColumn();
+	m_selectionRightColumn = m_teletextDocument->selectionRightColumn();
+
+	m_selectionCornerRow = m_teletextDocument->selectionCornerRow();
+	m_selectionCornerColumn = m_teletextDocument->selectionCornerColumn();
+
+	m_oldCharacters = storeCharacters(m_selectionTopRow, m_selectionLeftColumn, m_selectionBottomRow, m_selectionRightColumn);
+
+	setText(QObject::tr("cut"));
+}
+
+void CutCommand::redo()
+{
+	m_teletextDocument->selectSubPageIndex(m_subPageIndex);
+
+	for (int r=m_selectionTopRow; r<=m_selectionBottomRow; r++) {
+		for (int c=m_selectionLeftColumn; c<=m_selectionRightColumn; c++)
+			m_teletextDocument->currentSubPage()->setCharacter(r, c, 0x20);
+	}
+
+	emit m_teletextDocument->contentsChanged();
+}
+
+void CutCommand::undo()
+{
+	m_teletextDocument->selectSubPageIndex(m_subPageIndex);
+
+	retrieveCharacters(m_selectionTopRow, m_selectionLeftColumn, m_oldCharacters);
+
+	emit m_teletextDocument->contentsChanged();
+
+	m_teletextDocument->setSelectionCorner(m_selectionCornerRow, m_selectionCornerColumn);
+	m_teletextDocument->moveCursor(m_row, m_column, true);
+}
+
+
+PasteCommand::PasteCommand(TeletextDocument *teletextDocument, int pageCharSet, QUndoCommand *parent) : LevelOneCommand(teletextDocument, parent)
+{
+	const QClipboard *clipboard = QApplication::clipboard();
+	const QMimeData *mimeData = clipboard->mimeData();
+	QByteArray nativeData;
+
+	m_selectionActive = m_teletextDocument->selectionActive();
+	if (m_selectionActive) {
+		m_selectionCornerRow = m_teletextDocument->selectionCornerRow();
+		m_selectionCornerColumn = m_teletextDocument->selectionCornerColumn();
+		m_pasteTopRow = m_teletextDocument->selectionTopRow();
+		m_pasteBottomRow = m_teletextDocument->selectionBottomRow();
+		m_pasteLeftColumn = m_teletextDocument->selectionLeftColumn();
+		m_pasteRightColumn = m_teletextDocument->selectionRightColumn();
+	} else {
+		m_pasteTopRow = m_row;
+		m_pasteLeftColumn = m_column;
+		// m_pasteBottomRow and m_pasteRightColumn will be filled in later
+		// when the size of the clipboard data is known
+	}
+
+	// Zero size here represents invalid or empty clipboard data
+	m_clipboardDataHeight = m_clipboardDataWidth = 0;
+
+	// Try to get something from the clipboard
+	// FIXME is this a correct "custom" mime type? Or should we use vnd?
+	nativeData = mimeData->data("application/x-teletext");
+	if (nativeData.size() > 2) {
+		// Native clipboard data: we put it there ourselves
+		m_plainText = false;
+		m_clipboardDataHeight = nativeData.at(0);
+		m_clipboardDataWidth = nativeData.at(1);
+
+		// Guard against invalid dimensions or total size not matching stated dimensions
+		if (m_clipboardDataHeight > 0 && m_clipboardDataWidth > 0 && m_clipboardDataHeight <= 25 && m_clipboardDataWidth <= 40 && nativeData.size() == m_clipboardDataHeight * m_clipboardDataWidth + 2)
+			for (int r=0; r<m_clipboardDataHeight; r++)
+				m_pastingCharacters.append(nativeData.mid(2 + r * m_clipboardDataWidth, m_clipboardDataWidth));
+		else {
+			// Invalidate
+			m_clipboardDataHeight = m_clipboardDataWidth = 0;
+			return;
+		}
+
+		if (!m_selectionActive) {
+			m_pasteBottomRow = m_row + m_clipboardDataHeight - 1;
+			m_pasteRightColumn = m_column + m_clipboardDataWidth - 1;
+		}
+	} else if (mimeData->hasText()) {
+		// Plain text
+		m_plainText = true;
+
+		const int rightColumn = m_selectionActive ? m_pasteRightColumn : 39;
+
+		// Parse line-feeds in the clipboard data
+		QStringList plainTextData = mimeData->text().split(QRegularExpression("\n|\r\n|\r"));
+
+		// "if" statement will be false if clipboard data is a single line of text
+		// that will fit from the cursor position
+		if (plainTextData.size() != 1 || m_pasteLeftColumn + plainTextData.at(0).size() - 1 > rightColumn) {
+			bool wrappingNeeded = false;
+
+			if (!m_selectionActive) {
+				// If selection is NOT active, use the full width of the page to paste.
+				// The second and subsequent lines will start at column 1
+				m_pasteLeftColumn = 1;
+
+				// Check if first word in the first line will fit from the cursor position
+				bool firstWordFits = true;
+				const int firstSpace = plainTextData.at(0).indexOf(' ');
+
+				if (firstSpace == -1 && m_column + plainTextData.at(0).size() > 40)
+					firstWordFits = false; // Only one word in first line, and it won't fit
+				else if (m_column + firstSpace > 40)
+					firstWordFits = false; // First word in first line won't fit
+
+				// If the first word WILL fit at the cursor position, pad the first line
+				// to match the cursor position using null characters.
+				// In the QString null characters represent character cells in the
+				// pasting rectangle that won't overwrite what's on the page.
+				// If the first word WON'T fit, start pasting at the beginning of the next row.
+				if (firstWordFits)
+					plainTextData[0] = QString(m_column-m_pasteLeftColumn, QChar::Null) + plainTextData.at(0);
+				else if (m_pasteTopRow < 24)
+					m_pasteTopRow++;
+				else
+					return;
+			}
+
+			const int pasteWidth = rightColumn - m_pasteLeftColumn + 1;
+
+			// Find out if we need to word-wrap
+			for (int i=0; i<plainTextData.size(); i++)
+				if (plainTextData.at(i).size() > pasteWidth) {
+					wrappingNeeded = true;
+					break;
+				}
+
+			if (wrappingNeeded) {
+				QStringList wrappedText;
+
+				for (int i=0; i<plainTextData.size(); i++) {
+					// Split this line into individual words
+					QStringList lineWords = plainTextData.at(i).split(' ');
+
+					// If there's any words which are too long to fit,
+					// break them across multiple lines
+					for (int j=0; j<lineWords.size(); j++)
+						if (lineWords.at(j).size() > pasteWidth) {
+							lineWords.insert(j+1, lineWords.at(j).mid(pasteWidth));
+							lineWords[j].truncate(pasteWidth);
+						}
+
+					// Now reassemble the words into lines that will fit
+					QString currentLine = lineWords.at(0);
+
+					for (int j=1; j<lineWords.size(); j++)
+						if (currentLine.size() + 1 + lineWords.at(j).size() <= pasteWidth)
+							currentLine.append(' ' + lineWords.at(j));
+						else {
+							wrappedText.append(currentLine);
+							currentLine = lineWords.at(j);
+						}
+
+					wrappedText.append(currentLine);
+				}
+				plainTextData.swap(wrappedText);
+			}
+		}
+
+		m_clipboardDataHeight = plainTextData.size();
+		m_clipboardDataWidth = 0;
+
+		// Convert the unicode clipboard text into teletext bytes matching the current Level 1
+		// character set of this page
+		for (int r=0; r<m_clipboardDataHeight; r++) {
+			m_pastingCharacters.append(QByteArray());
+			for (int c=0; c<plainTextData.at(r).size(); c++) {
+				char convertedChar;
+				const QChar charToConvert = plainTextData.at(r).at(c);
+
+				// Map a null character in the QString to 0xff (or -1)
+				// In the QByteArray 0xff bytes represent character cells in the pasting rectangle
+				// that won't overwrite what's on the page
+				if (charToConvert == QChar::Null)
+					convertedChar = -1;
+				else if (charToConvert >= QChar(0x01) && charToConvert <= QChar(0x1f))
+					convertedChar = ' ';
+				else if (keymapping[pageCharSet].contains(charToConvert))
+					// Remapped character or non-Latin character converted successfully
+					convertedChar = keymapping[pageCharSet].value(charToConvert);
+				else {
+					// Either a Latin character or non-Latin character that can't be converted
+					// See if it's a Latin character
+					convertedChar = charToConvert.toLatin1();
+					if (convertedChar <= 0)
+						// Couldn't convert - make it a block character so it doesn't need to be inserted-between later on
+						convertedChar = 0x7f;
+				}
+
+				m_pastingCharacters[r].append(convertedChar);
+			}
+			m_clipboardDataWidth = qMax(m_pastingCharacters.at(r).size(), m_clipboardDataWidth);
+		}
+		// Pad the end of short lines with spaces to make a box
+		for (int r=0; r<m_clipboardDataHeight; r++)
+			m_pastingCharacters[r] = m_pastingCharacters.at(r).leftJustified(m_clipboardDataWidth);
+
+		if (!m_selectionActive) {
+			m_pasteBottomRow = m_pasteTopRow + m_clipboardDataHeight - 1;
+			m_pasteRightColumn = m_pasteLeftColumn + m_clipboardDataWidth - 1;
+		}
+	} else if (mimeData->hasImage()) {
+		QImage imageData = qvariant_cast<QImage>(mimeData->imageData());
+		m_plainText = false;
+		// Round up when dividing pixel size into character cell size
+		m_clipboardDataHeight = (imageData.height() + 2) / 3;
+		m_clipboardDataWidth = (imageData.width() + 1) / 2;
+
+		// Format_MonoLSB reverses the bits which makes them easier to shuffle into sixels
+		if (imageData.depth() == 1)
+			imageData.convertTo(QImage::Format_MonoLSB);
+		else
+			// Only pure black and white images convert reliably this way...
+			imageData = imageData.convertToFormat(QImage::Format_MonoLSB, QVector<QRgb>{0x000000ff, 0xffffffff});
+
+		for (int r=0; r<m_clipboardDataHeight; r++)
+			m_pastingCharacters.append(QByteArray(m_clipboardDataWidth, 0x00));
+
+		// Directly read the pixel-bits and convert them to sixels with some funky bit manipulation
+		for (int y=0; y<imageData.height(); y++) {
+			const unsigned char *bytePointer = imageData.constScanLine(y);
+			// Three rows of sixels per character cell
+			const int r = y / 3;
+			// Where to shuffle the bits into the top, middle or bottom row of sixels
+			// Yes it does put the bottom right sixel into bit 5 instead of bit 6;
+			// this gets remedied further on
+			const int yShift = (y % 3) * 2;
+			// The loop does eight horizontal pixels into four character cells at a time
+			for (int x=0; x<imageData.width(); x+=8) {
+				const unsigned char byteScanned = *bytePointer;
+				const int c = x / 2;
+
+				m_pastingCharacters[r][c] = m_pastingCharacters[r][c] | ((byteScanned & 0x03) << yShift);
+				// Since we're doing four character cells at a time, we need to exit the loop
+				// early before we go out of bounds.
+				// Yes it does leave an undefined last column of sixels from images that are an
+				// odd numbered number of pixels wide; this gets remedied further on
+				if (x + 2 >= imageData.width())
+					continue;
+				m_pastingCharacters[r][c+1] = m_pastingCharacters[r][c+1] | (((byteScanned >> 2) & 0x03) << yShift);
+				if (x + 4 >= imageData.width())
+					continue;
+				m_pastingCharacters[r][c+2] = m_pastingCharacters[r][c+2] | (((byteScanned >> 4) & 0x03) << yShift);
+				if (x + 6 >= imageData.width())
+					continue;
+				m_pastingCharacters[r][c+3] = m_pastingCharacters[r][c+3] | (((byteScanned >> 6) & 0x03) << yShift);
+
+				bytePointer++;
+			}
+		}
+
+		for (int r=0; r<m_clipboardDataHeight; r++) {
+			for (int c=0; c<m_clipboardDataWidth; c++)
+				if (m_pastingCharacters.at(r).at(c) & 0x20)
+					// If bit 5 was set, correct this to bit 6
+					// but we keep bit 5 set as all mosaic characters have bit 5 set
+					m_pastingCharacters[r][c] = m_pastingCharacters.at(r).at(c) | 0x40;
+				else
+					// Set bit 5 to have it recognised as a mosaic character
+					m_pastingCharacters[r][c] = m_pastingCharacters.at(r).at(c) | 0x20;
+			// If image was an odd numbered width, neutralise the undefined sixels
+			// on the right half
+			if (imageData.width() & 0x01)
+				m_pastingCharacters[r][m_clipboardDataWidth-1] = m_pastingCharacters.at(r).at(m_clipboardDataWidth-1) & 0x35;
+		}
+
+		if (!m_selectionActive) {
+			m_pasteBottomRow = m_row + m_clipboardDataHeight - 1;
+			m_pasteRightColumn = m_column + m_clipboardDataWidth - 1;
+		}
+	}
+
+	if (m_clipboardDataWidth == 0 || m_clipboardDataHeight == 0)
+		return;
+
+	m_oldCharacters = storeCharacters(m_pasteTopRow, m_pasteLeftColumn, m_pasteBottomRow, m_pasteRightColumn);
+
+	setText(QObject::tr("paste"));
+}
+
+void PasteCommand::redo()
+{
+	if (m_clipboardDataWidth == 0 || m_clipboardDataHeight == 0)
+		return;
+
+	m_teletextDocument->selectSubPageIndex(m_subPageIndex);
+
+	int arrayR = 0;
+	int arrayC;
+
+	for (int r=m_pasteTopRow; r<=m_pasteBottomRow; r++) {
+		arrayC = 0;
+		for (int c=m_pasteLeftColumn; c<=m_pasteRightColumn; c++)
+			// Guard against size of pasted block going beyond last line or column
+			if (r < 25 && c < 40) {
+				// Check for 0xff bytes using "-1"
+				// gcc complains about "comparision always true due to limited range"
+				if (m_pastingCharacters.at(arrayR).at(arrayC) != -1)
+					m_teletextDocument->currentSubPage()->setCharacter(r, c, m_pastingCharacters.at(arrayR).at(arrayC));
+
+				arrayC++;
+
+				// If paste area is wider than clipboard data, repeat the pattern
+				// if it wasn't plain text
+				if (arrayC == m_clipboardDataWidth) {
+					if (!m_plainText)
+						arrayC = 0;
+					else
+						break;
+				}
+			}
+
+		arrayR++;
+		// If paste area is taller than clipboard data, repeat the pattern
+		// if it wasn't plain text
+		if (arrayR == m_clipboardDataHeight) {
+			if (!m_plainText)
+				arrayR = 0;
+			else
+				break;
+		}
+	}
+
+	emit m_teletextDocument->contentsChanged();
+
+	if (m_selectionActive) {
+		m_teletextDocument->setSelectionCorner(m_selectionCornerRow, m_selectionCornerColumn);
+		m_teletextDocument->moveCursor(m_row, m_column, true);
+	} else {
+		m_teletextDocument->moveCursor(m_row, qMin(m_column+m_clipboardDataWidth-1, 39));
+		m_teletextDocument->cursorRight();
+	}
+}
+
+void PasteCommand::undo()
+{
+	if (m_clipboardDataWidth == 0 || m_clipboardDataHeight == 0)
+		return;
+
+	m_teletextDocument->selectSubPageIndex(m_subPageIndex);
+
+	retrieveCharacters(m_pasteTopRow, m_pasteLeftColumn, m_oldCharacters);
+
+	emit m_teletextDocument->contentsChanged();
+
+	if (!m_selectionActive)
+		m_teletextDocument->moveCursor(m_row, m_column);
+}
+#endif // !QT_NO_CLIPBOARD
+
+
+InsertSubPageCommand::InsertSubPageCommand(TeletextDocument *teletextDocument, bool afterCurrentSubPage, bool copySubPage, QUndoCommand *parent) : LevelOneCommand(teletextDocument, parent)
+{
+	m_newSubPageIndex = m_subPageIndex + afterCurrentSubPage;
+	m_copySubPage = copySubPage;
+
+	setText(QObject::tr("insert subpage"));
+
+}
+
+void InsertSubPageCommand::redo()
+{
+	m_teletextDocument->insertSubPage(m_newSubPageIndex, m_copySubPage);
+
+	m_teletextDocument->selectSubPageIndex(m_newSubPageIndex, true);
+}
+
+void InsertSubPageCommand::undo()
+{
+	m_teletextDocument->deleteSubPage(m_newSubPageIndex);
+	//TODO should we always wrench to "subpage viewed when we inserted"? Or just if subpage viewed is being deleted?
+
+	m_teletextDocument->selectSubPageIndex(qMin(m_newSubPageIndex, m_teletextDocument->numberOfSubPages()-1), true);
+}
+
+
+DeleteSubPageCommand::DeleteSubPageCommand(TeletextDocument *teletextDocument, QUndoCommand *parent) : LevelOneCommand(teletextDocument, parent)
+{
+	setText(QObject::tr("delete subpage"));
+}
+
+void DeleteSubPageCommand::redo()
+{
+	m_teletextDocument->deleteSubPageToRecycle(m_subPageIndex);
+	m_teletextDocument->selectSubPageIndex(qMin(m_subPageIndex, m_teletextDocument->numberOfSubPages()-1), true);
+}
+
+void DeleteSubPageCommand::undo()
+{
+	m_teletextDocument->unDeleteSubPageFromRecycle(m_subPageIndex);
+	m_teletextDocument->selectSubPageIndex(m_subPageIndex, true);
+}

src/qteletextmaker/levelonecommands.h

@@ -0,0 +1,246 @@
+/*
+ * Copyright (C) 2020-2024 Gavin MacGregor
+ *
+ * This file is part of QTeletextMaker.
+ *
+ * QTeletextMaker is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * QTeletextMaker is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with QTeletextMaker.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#ifndef LEVELONECOMMANDS_H
+#define LEVELONECOMMANDS_H
+
+#include <QByteArrayList>
+#include <QSet>
+#include <QUndoCommand>
+
+#include "document.h"
+
+class LevelOneCommand : public QUndoCommand
+{
+public:
+	LevelOneCommand(TeletextDocument *teletextDocument, QUndoCommand *parent = 0);
+
+protected:
+	QByteArrayList storeCharacters(int topRow, int leftColumn, int bottomRow, int rightColumn);
+	void retrieveCharacters(int topRow, int leftColumn, const QByteArrayList &oldChars);
+
+	TeletextDocument *m_teletextDocument;
+	int m_subPageIndex, m_row, m_column;
+	bool m_firstDo;
+};
+
+class TypeCharacterCommand : public LevelOneCommand
+{
+public:
+	enum { Id = 101 };
+
+	TypeCharacterCommand(TeletextDocument *teletextDocument, unsigned char newCharacter, bool insertMode, QUndoCommand *parent = 0);
+
+	void redo() override;
+	void undo() override;
+	bool mergeWith(const QUndoCommand *command) override;
+	int id() const override { return Id; }
+
+private:
+	unsigned char m_newCharacter, m_oldRowContents[40], m_newRowContents[40];
+	int m_columnStart, m_columnEnd;
+	bool m_insertMode;
+};
+
+class ToggleMosaicBitCommand : public LevelOneCommand
+{
+public:
+	enum { Id = 102 };
+
+	ToggleMosaicBitCommand(TeletextDocument *teletextDocument, unsigned char bitToToggle, QUndoCommand *parent = 0);
+
+	void redo() override;
+	void undo() override;
+	bool mergeWith(const QUndoCommand *command) override;
+	int id() const override { return Id; }
+
+private:
+	unsigned char m_oldCharacter, m_newCharacter;
+};
+
+class BackspaceKeyCommand : public LevelOneCommand
+{
+public:
+	enum { Id = 103 };
+
+	BackspaceKeyCommand(TeletextDocument *teletextDocument, bool insertMode, QUndoCommand *parent = 0);
+
+	void redo() override;
+	void undo() override;
+	bool mergeWith(const QUndoCommand *command) override;
+	int id() const override { return Id; }
+
+private:
+	unsigned char m_oldRowContents[40], m_newRowContents[40];
+	int m_columnStart, m_columnEnd;
+	bool m_insertMode;
+};
+
+class DeleteKeyCommand : public LevelOneCommand
+{
+public:
+	enum { Id = 104 };
+
+	DeleteKeyCommand(TeletextDocument *teletextDocument, QUndoCommand *parent = 0);
+
+	void redo() override;
+	void undo() override;
+	bool mergeWith(const QUndoCommand *command) override;
+	int id() const override { return Id; }
+
+private:
+	unsigned char m_oldRowContents[40], m_newRowContents[40];
+};
+
+class ShiftMosaicsCommand : public LevelOneCommand
+{
+public:
+	ShiftMosaicsCommand(TeletextDocument *teletextDocument, const QSet<QPair<int, int>> &mosaicList, QUndoCommand *parent = 0);
+
+	void redo() override;
+	void undo() override;
+	bool mergeWith(const QUndoCommand *command) override;
+
+protected:
+	QByteArrayList m_oldCharacters, m_newCharacters;
+	QSet<QPair<int, int>> m_mosaicList;
+	int m_selectionTopRow, m_selectionBottomRow, m_selectionLeftColumn, m_selectionRightColumn;
+	int m_selectionCornerRow, m_selectionCornerColumn;
+};
+
+class ShiftMosaicsUpCommand : public ShiftMosaicsCommand
+{
+public:
+	enum { Id = 110 };
+
+	ShiftMosaicsUpCommand(TeletextDocument *teletextDocument, const QSet<QPair<int, int>> &mosaicList, QUndoCommand *parent = 0);
+
+	int id() const override { return Id; }
+};
+
+class ShiftMosaicsDownCommand : public ShiftMosaicsCommand
+{
+public:
+	enum { Id = 111 };
+
+	ShiftMosaicsDownCommand(TeletextDocument *teletextDocument, const QSet<QPair<int, int>> &mosaicList, QUndoCommand *parent = 0);
+
+	int id() const override { return Id; }
+};
+
+class ShiftMosaicsLeftCommand : public ShiftMosaicsCommand
+{
+public:
+	enum { Id = 112 };
+
+	ShiftMosaicsLeftCommand(TeletextDocument *teletextDocument, const QSet<QPair<int, int>> &mosaicList, QUndoCommand *parent = 0);
+
+	int id() const override { return Id; }
+};
+
+class ShiftMosaicsRightCommand : public ShiftMosaicsCommand
+{
+public:
+	enum { Id = 113 };
+
+	ShiftMosaicsRightCommand(TeletextDocument *teletextDocument, const QSet<QPair<int, int>> &mosaicList, QUndoCommand *parent = 0);
+
+	int id() const override { return Id; }
+};
+
+class InsertSubPageCommand : public LevelOneCommand
+{
+public:
+	InsertSubPageCommand(TeletextDocument *teletextDocument, bool afterCurrentSubPage, bool copySubPage, QUndoCommand *parent = 0);
+
+	void redo() override;
+	void undo() override;
+
+private:
+	int m_newSubPageIndex;
+	bool m_copySubPage;
+};
+
+class DeleteSubPageCommand : public LevelOneCommand
+{
+public:
+	DeleteSubPageCommand(TeletextDocument *teletextDocument, QUndoCommand *parent = 0);
+
+	void redo() override;
+	void undo() override;
+};
+
+class InsertRowCommand : public LevelOneCommand
+{
+public:
+	InsertRowCommand(TeletextDocument *teletextDocument, bool copyRow, QUndoCommand *parent = 0);
+
+	void redo() override;
+	void undo() override;
+
+private:
+	bool m_copyRow;
+	unsigned char m_deletedBottomRow[40];
+};
+
+class DeleteRowCommand : public LevelOneCommand
+{
+public:
+	DeleteRowCommand(TeletextDocument *teletextDocument, QUndoCommand *parent = 0);
+
+	void redo() override;
+	void undo() override;
+
+private:
+	unsigned char m_deletedRow[40];
+};
+
+#ifndef QT_NO_CLIPBOARD
+class CutCommand : public LevelOneCommand
+{
+public:
+	CutCommand(TeletextDocument *teletextDocument, QUndoCommand *parent = 0);
+
+	void redo() override;
+	void undo() override;
+
+private:
+	QByteArrayList m_oldCharacters;
+	int m_selectionTopRow, m_selectionBottomRow, m_selectionLeftColumn, m_selectionRightColumn;
+	int m_selectionCornerRow, m_selectionCornerColumn;
+};
+
+class PasteCommand : public LevelOneCommand
+{
+public:
+	PasteCommand(TeletextDocument *teletextDocument, int pageCharSet, QUndoCommand *parent = 0);
+
+	void redo() override;
+	void undo() override;
+
+private:
+	QByteArrayList m_oldCharacters, m_pastingCharacters;
+	int m_pasteTopRow, m_pasteBottomRow, m_pasteLeftColumn, m_pasteRightColumn;
+	int m_clipboardDataHeight, m_clipboardDataWidth;
+	int m_selectionCornerRow, m_selectionCornerColumn;
+	bool m_selectionActive, m_plainText;
+};
+#endif // !QT_NO_CLIPBOARD
+
+#endif

src/qteletextmaker/loadsave.cpp

@@ -0,0 +1,811 @@
+/*
+ * Copyright (C) 2020-2024 Gavin MacGregor
+ *
+ * This file is part of QTeletextMaker.
+ *
+ * QTeletextMaker is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * QTeletextMaker is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with QTeletextMaker.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include "loadsave.h"
+
+#include <QByteArray>
+#include <QDataStream>
+#include <QFile>
+#include <QSaveFile>
+#include <QString>
+#include <QTextStream>
+
+#include "document.h"
+#include "hamming.h"
+#include "levelonepage.h"
+#include "pagebase.h"
+
+void loadTTI(QFile *inFile, TeletextDocument *document)
+{
+	QByteArray inLine;
+	bool firstSubPageAlreadyFound = false;
+	int cycleCommandsFound = 0;
+	int mostRecentCycleValue = -1;
+	LevelOnePage::CycleTypeEnum mostRecentCycleType;
+
+	LevelOnePage* loadingPage = document->subPage(0);
+
+	for (;;) {
+		inLine = inFile->readLine(160).trimmed();
+		if (inLine.isEmpty())
+			break;
+		if (inLine.startsWith("DE,"))
+			document->setDescription(QString(inLine.remove(0, 3)));
+		if (inLine.startsWith("PN,")) {
+			// When second and subsequent PN commands are found, firstSubPageAlreadyFound==true at this point
+			// This assumes that PN is the first command of a new subpage...
+			if (firstSubPageAlreadyFound) {
+				document->insertSubPage(document->numberOfSubPages(), false);
+				loadingPage = document->subPage(document->numberOfSubPages()-1);
+			} else {
+				document->setPageNumberFromString(inLine.mid(3,3));
+				firstSubPageAlreadyFound = true;
+			}
+		}
+/*		if (lineType == "SC,") {
+			bool subPageNumberOk;
+			int subPageNumberRead = inLine.mid(3, 4).toInt(&subPageNumberOk, 16);
+			if ((!subPageNumberOk) || subPageNumberRead > 0x3f7f)
+				subPageNumberRead = 0;
+			loadingPage->setSubPageNumber(subPageNumberRead);
+		}*/
+		if (inLine.startsWith("PS,")) {
+			bool pageStatusOk;
+			int pageStatusRead = inLine.mid(3, 4).toInt(&pageStatusOk, 16);
+			if (pageStatusOk) {
+				loadingPage->setControlBit(PageBase::C4ErasePage, pageStatusRead & 0x4000);
+				for (int i=PageBase::C5Newsflash, pageStatusBit=0x0001; i<=PageBase::C11SerialMagazine; i++, pageStatusBit<<=1)
+					loadingPage->setControlBit(i, pageStatusRead & pageStatusBit);
+				loadingPage->setDefaultNOS(((pageStatusRead & 0x0200) >> 9) | ((pageStatusRead & 0x0100) >> 7) | ((pageStatusRead & 0x0080) >> 5));
+			}
+		}
+		if (inLine.startsWith("CT,") && (inLine.endsWith(",C") || inLine.endsWith(",T"))) {
+			bool cycleValueOk;
+			int cycleValueRead = inLine.mid(3, inLine.size()-5).toInt(&cycleValueOk);
+			if (cycleValueOk) {
+				cycleCommandsFound++;
+				// House-keep CT command values, in case it's the only one within multiple subpages
+				mostRecentCycleValue = cycleValueRead;
+				loadingPage->setCycleValue(cycleValueRead);
+				mostRecentCycleType = inLine.endsWith("C") ? LevelOnePage::CTcycles : LevelOnePage::CTseconds;
+				loadingPage->setCycleType(mostRecentCycleType);
+			}
+		}
+		if (inLine.startsWith("FL,")) {
+			bool fastTextLinkOk;
+			int fastTextLinkRead;
+			QString flLine = QString(inLine.remove(0, 3));
+			if (flLine.count(',') == 5)
+				for (int i=0; i<6; i++) {
+					fastTextLinkRead = flLine.section(',', i, i).toInt(&fastTextLinkOk, 16);
+					if (fastTextLinkOk) {
+						if (fastTextLinkRead == 0)
+							fastTextLinkRead = 0x8ff;
+						// Stored as page link with relative magazine number, convert from absolute page number that was read
+						fastTextLinkRead ^= document->pageNumber() & 0x700;
+						fastTextLinkRead &= 0x7ff; // Fixes magazine 8 to 0
+						loadingPage->setFastTextLinkPageNumber(i, fastTextLinkRead);
+					}
+				}
+		}
+		if (inLine.startsWith("OL,")) {
+			bool lineNumberOk;
+			int lineNumber, secondCommaPosition;
+
+			secondCommaPosition = inLine.indexOf(",", 3);
+			if (secondCommaPosition != 4 && secondCommaPosition != 5)
+				continue;
+
+			lineNumber = inLine.mid(3, secondCommaPosition-3).toInt(&lineNumberOk, 10);
+			if (lineNumberOk && lineNumber>=0 && lineNumber<=29) {
+				inLine.remove(0, secondCommaPosition+1);
+				if (lineNumber <= 25) {
+					for (int c=0; c<40; c++) {
+						// trimmed() helpfully removes CRLF line endings from the just-read line for us
+						// But it also (un)helpfully removes spaces at the end of a 40 character line, so put them back
+						if (c >= inLine.size())
+							inLine.append(' ');
+						if (inLine.at(c) & 0x80)
+							inLine[c] = inLine.at(c) & 0x7f;
+						else if (inLine.at(c) == 0x10)
+							inLine[c] = 0x0d;
+						else if (inLine.at(c) == 0x1b) {
+							inLine.remove(c, 1);
+							inLine[c] = inLine.at(c) & 0xbf;
+						}
+					}
+					loadingPage->setPacket(lineNumber, inLine);
+				} else {
+					int designationCode = inLine.at(0) & 0x3f;
+					if (inLine.size() < 40) {
+						// OL is too short!
+						if (lineNumber == 26) {
+							// For a too-short enhancement triplets OL, first trim the line down to nearest whole triplet
+							inLine.resize((inLine.size() / 3 * 3) + 1);
+							// Then use "dummy" enhancement triplets to extend the line to the proper length
+							for (int i=inLine.size(); i<40; i+=3)
+								inLine.append("i^@"); // Address 41, Mode 0x1e, Data 0
+						} else
+							// For other triplet OLs and Hamming 8/4 OLs, just pad with zero data
+							for (int i=inLine.size(); i<40; i++)
+								inLine.append("@");
+					}
+					for (int i=1; i<=39; i++)
+						inLine[i] = inLine.at(i) & 0x3f;
+					// Import M/29 whole-magazine packets as X/28 per-page packets
+					if (lineNumber == 29) {
+						if ((document->pageNumber() & 0xff) != 0xff)
+							qDebug("M/29/%d packet found, but page number is not xFF!", designationCode);
+						lineNumber = 28;
+					}
+					loadingPage->setPacket(lineNumber, designationCode, inLine);
+				}
+			}
+		}
+	}
+	// If there's more than one subpage but only one valid CT command was found, apply it to all subpages
+	// I don't know if this is correct
+	if (cycleCommandsFound == 1 && document->numberOfSubPages()>1)
+		for (int i=0; i<document->numberOfSubPages(); i++) {
+			document->subPage(i)->setCycleValue(mostRecentCycleValue);
+			document->subPage(i)->setCycleType(mostRecentCycleType);
+		}
+}
+
+void importT42(QFile *inFile, TeletextDocument *document)
+{
+	unsigned char inLine[42];
+	int readMagazineNumber, readPacketNumber;
+	int foundMagazineNumber = -1;
+	int foundPageNumber = -1;
+	bool firstPacket0Found = false;
+	bool pageBodyPacketsFound = false;
+
+	for (;;) {
+		if (inFile->read((char *)inLine, 42) != 42)
+			// Reached end of .t42 file, or less than 42 bytes left
+			break;
+
+		// Magazine and packet numbers
+		inLine[0] = hamming_8_4_decode[inLine[0]];
+		inLine[1] = hamming_8_4_decode[inLine[1]];
+		if (inLine[0] == 0xff || inLine[1] == 0xff)
+			// Error decoding magazine or packet number
+			continue;
+		readMagazineNumber = inLine[0] & 0x07;
+		readPacketNumber = (inLine[0] >> 3) | (inLine[1] << 1);
+
+		if (readPacketNumber == 0) {
+			// Hamming decode page number, subcodes and control bits
+			for (int i=2; i<10; i++)
+				inLine[i] = hamming_8_4_decode[inLine[i]];
+			// See if the page number is valid
+			if (inLine[2] == 0xff || inLine[3] == 0xff)
+				// Error decoding page number
+				continue;
+
+			const int readPageNumber = (inLine[3] << 4) | inLine[2];
+
+			if (readPageNumber == 0xff)
+				// Time filling header
+				continue;
+
+			// A second or subsequent X/0 has been found
+			if (firstPacket0Found) {
+				if (readMagazineNumber != foundMagazineNumber)
+					// Packet from different magazine broadcast in parallel mode
+					continue;
+				if ((readPageNumber == foundPageNumber) && pageBodyPacketsFound)
+					// X/0 with same page number found after page body packets loaded - assume end of page
+					break;
+				if (readPageNumber != foundPageNumber) {
+					// More than one page in .t42 file - end of current page reached
+					qDebug("More than one page in .t42 file");
+					break;
+				}
+				// Could get here if X/0 with same page number was found with no body packets inbetween
+				continue;
+			} else {
+				// First X/0 found
+				foundMagazineNumber = readMagazineNumber;
+				foundPageNumber = readPageNumber;
+				firstPacket0Found = true;
+
+				if (foundMagazineNumber == 0)
+					document->setPageNumber(0x800 | foundPageNumber);
+				else
+					document->setPageNumber((foundMagazineNumber << 8) | foundPageNumber);
+
+				document->subPage(0)->setControlBit(PageBase::C4ErasePage, inLine[5] & 0x08);
+				document->subPage(0)->setControlBit(PageBase::C5Newsflash, inLine[7] & 0x04);
+				document->subPage(0)->setControlBit(PageBase::C6Subtitle, inLine[7] & 0x08);
+				for (int i=0; i<4; i++)
+					document->subPage(0)->setControlBit(PageBase::C7SuppressHeader+i, inLine[8] & (1 << i));
+				document->subPage(0)->setControlBit(PageBase::C11SerialMagazine, inLine[9] & 0x01);
+				document->subPage(0)->setControlBit(PageBase::C12NOS, inLine[9] & 0x08);
+				document->subPage(0)->setControlBit(PageBase::C13NOS, inLine[9] & 0x04);
+				document->subPage(0)->setControlBit(PageBase::C14NOS, inLine[9] & 0x02);
+
+				continue;
+			}
+		}
+
+		// No X/0 has been found yet, keep looking for one
+		if (!firstPacket0Found)
+			continue;
+
+		// Disregard whole-magazine packets
+		if (readPacketNumber > 28)
+			continue;
+
+		// We get here when a page-body packet belonging to the found X/0 header was found
+		pageBodyPacketsFound = true;
+
+		// At the moment this only loads a Level One Page properly
+		// because it assumes X/1 to X/25 is odd partity
+		if (readPacketNumber < 25) {
+			for (int i=2; i<42; i++)
+				// TODO - obey odd parity?
+				inLine[i] &= 0x7f;
+			document->subPage(0)->setPacket(readPacketNumber, QByteArray((const char *)&inLine[2], 40));
+			continue;
+		}
+
+		// X/26, X/27 or X/28
+		int readDesignationCode = hamming_8_4_decode[inLine[2]];
+
+		if (readDesignationCode == 0xff)
+			// Error decoding designation code
+			continue;
+
+		if (readPacketNumber == 27 && readDesignationCode < 4) {
+			// X/27/0 to X/27/3 for Editorial Linking
+			// Decode Hamming 8/4 on each of the six links, checking for errors on the way
+			for (int i=0; i<6; i++) {
+				bool decodingError = false;
+				const int b = 3 + i*6; // First byte of this link
+
+				for (int j=0; j<6; j++) {
+					inLine[b+j] = hamming_8_4_decode[inLine[b+j]];
+					if (inLine[b+j] == 0xff) {
+						decodingError = true;
+						break;
+					}
+				}
+
+				if (decodingError) {
+					// Error found in at least one byte of the link
+					// Neutralise the whole link to same magazine, page FF, subcode 3F7F
+					qDebug("X/27/%d link %d decoding error", readDesignationCode, i);
+					inLine[b]   = 0xf;
+					inLine[b+1] = 0xf;
+					inLine[b+2] = 0xf;
+					inLine[b+3] = 0x7;
+					inLine[b+4] = 0xf;
+					inLine[b+5] = 0x3;
+				}
+			}
+			document->subPage(0)->setPacket(readPacketNumber, readDesignationCode, QByteArray((const char *)&inLine[2], 40));
+
+			continue;
+		}
+
+		// X/26, or X/27/4 to X/27/15, or X/28
+		// Decode Hamming 24/18
+		for (int i=0; i<13; i++) {
+			const int b = 3 + i*3; // First byte of triplet
+
+			const int p0 = inLine[b];
+			const int p1 = inLine[b+1];
+			const int p2 = inLine[b+2];
+
+			unsigned int D1_D4;
+			unsigned int D5_D11;
+			unsigned int D12_D18;
+			unsigned int ABCDEF;
+			int32_t d;
+
+			D1_D4 = hamming_24_18_decode_d1_d4[p0 >> 2];
+			D5_D11 = p1 & 0x7f;
+			D12_D18 = p2 & 0x7f;
+
+			d = D1_D4 | (D5_D11 << 4) | (D12_D18 << 11);
+
+			ABCDEF = (hamming_24_18_parities[0][p0] ^ hamming_24_18_parities[1][p1]  ^ hamming_24_18_parities[2][p2]);
+
+			d ^= (int)hamming_24_18_decode_correct[ABCDEF];
+
+			if ((d & 0x80000000) == 0x80000000) {
+				// Error decoding Hamming 24/18
+				qDebug("X/%d/%d triplet %d decoding error", readPacketNumber, readDesignationCode, i);
+				if (readPacketNumber == 26) {
+					// Enhancements packet, set to "dummy" Address 41, Mode 0x1e, Data 0
+					inLine[b]   = 41;
+					inLine[b+1] = 0x1e;
+					inLine[b+2] = 0;
+				} else {
+					// Zero out whole decoded triplet, bound to make things go wrong...
+					inLine[b]   = 0x00;
+					inLine[b+1] = 0x00;
+					inLine[b+2] = 0x00;
+				}
+			} else {
+				inLine[b]   = d & 0x0003f;
+				inLine[b+1] = (d & 0x00fc0) >> 6;
+				inLine[b+2] = d >> 12;
+			}
+		}
+		document->subPage(0)->setPacket(readPacketNumber, readDesignationCode, QByteArray((const char *)&inLine[2], 40));
+	}
+
+	if (!firstPacket0Found)
+		qDebug("No X/0 found");
+	else if (!pageBodyPacketsFound)
+		qDebug("X/0 found, but no page body packets were found");
+}
+
+// Used by saveTTI and HashString
+int controlBitsToPS(PageBase *subPage)
+{
+	// C4 Erase page is stored in bit 14
+	int pageStatus = 0x8000 | (subPage->controlBit(PageBase::C4ErasePage) << 14); 
+	// C5 to C11 stored in order from bits 1 to 6
+	for (int i=PageBase::C5Newsflash; i<=PageBase::C11SerialMagazine; i++)
+		pageStatus |= subPage->controlBit(i) << (i-1);
+	// Apparently the TTI format stores the NOS bits backwards
+	pageStatus |= subPage->controlBit(PageBase::C12NOS) << 9;
+	pageStatus |= subPage->controlBit(PageBase::C13NOS) << 8;
+	pageStatus |= subPage->controlBit(PageBase::C14NOS) << 7;
+	return pageStatus;
+}
+
+void saveTTI(QSaveFile &file, const TeletextDocument &document)
+{
+	int p;
+	QTextStream outStream(&file);
+
+	auto write7bitPacket=[&](int packetNumber)
+	{
+		if (document.subPage(p)->packetExists(packetNumber)) {
+			QByteArray outLine = document.subPage(p)->packet(packetNumber);
+
+			outStream << QString("OL,%1,").arg(packetNumber);
+			for (int c=0; c<outLine.size(); c++)
+				if (outLine.at(c) < 0x20) {
+					// TTI files are plain text, so put in escape followed by control code with bit 6 set
+					outLine[c] = outLine.at(c) | 0x40;
+					outLine.insert(c, 0x1b);
+					c++;
+				}
+#if QT_VERSION >= QT_VERSION_CHECK(5, 14, 0)
+			outStream << outLine << Qt::endl;
+#else
+			outStream << outLine << endl;
+#endif
+		}
+	};
+
+	auto writeHammingPacket=[&](int packetNumber, int designationCode=0)
+	{
+		if (document.subPage(p)->packetExists(packetNumber, designationCode)) {
+			QByteArray outLine = document.subPage(p)->packet(packetNumber, designationCode);
+
+			outStream << QString("OL,%1,").arg(packetNumber);
+			// TTI stores raw values with bit 6 set, doesn't do Hamming encoding
+			outLine[0] = designationCode | 0x40;
+			for (int c=1; c<outLine.size(); c++)
+				outLine[c] = outLine.at(c) | 0x40;
+#if QT_VERSION >= QT_VERSION_CHECK(5, 14, 0)
+			outStream << outLine << Qt::endl;
+#else
+			outStream << outLine << endl;
+#endif
+		}
+	};
+
+#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
+	outStream.setCodec("ISO-8859-1");
+#else
+	outStream.setEncoding(QStringConverter::Latin1);
+#endif
+
+	if (!document.description().isEmpty())
+#if QT_VERSION >= QT_VERSION_CHECK(5, 14, 0)
+		outStream << "DE," << document.description() << Qt::endl;
+#else
+		outStream << "DE," << document.description() << endl;
+#endif
+
+	// TODO DS and SP commands
+
+	// If there's just one subpage then we save it with a subcode of 0000
+	// otherwise start with a subcode of 0001
+	int subPageNumber = document.numberOfSubPages() > 1;
+
+	for (p=0; p<document.numberOfSubPages(); p++) {
+
+		// Page number
+		outStream << QString("PN,%1%2").arg(document.pageNumber(), 3, 16, QChar('0')).arg(subPageNumber & 0xff, 2, 10, QChar('0'));
+#if QT_VERSION >= QT_VERSION_CHECK(5, 14, 0)
+			outStream << Qt::endl;
+#else
+			outStream << endl;
+#endif
+
+		// Subpage
+		// Magazine Organisation Table and Magazine Inventory Page don't have subpages
+		if (document.pageFunction() != TeletextDocument::PFMOT && document.pageFunction() != TeletextDocument::PFMIP) {
+			outStream << QString("SC,%1").arg(subPageNumber, 4, 10, QChar('0'));
+#if QT_VERSION >= QT_VERSION_CHECK(5, 14, 0)
+			outStream << Qt::endl;
+#else
+			outStream << endl;
+#endif
+		}
+
+		// Status bits
+		outStream << QString("PS,%1").arg(0x8000 | controlBitsToPS(document.subPage(p)), 4, 16, QChar('0'));
+#if QT_VERSION >= QT_VERSION_CHECK(5, 14, 0)
+		outStream << Qt::endl;
+#else
+		outStream << endl;
+#endif
+
+		// Cycle time
+		if (document.pageFunction() == TeletextDocument::PFLevelOnePage)
+			// Assume that only Level One Pages have configurable cycle times
+			outStream << QString("CT,%1,%2").arg(document.subPage(p)->cycleValue()).arg(document.subPage(p)->cycleType()==LevelOnePage::CTcycles ? 'C' : 'T');
+		else
+			// X/28/0 specifies page function and coding but the PF command
+			// should make it obvious to a human that this isn't a Level One Page
+			outStream << QString("PF,%1,%2").arg(document.pageFunction()).arg(document.packetCoding());
+#if QT_VERSION >= QT_VERSION_CHECK(5, 14, 0)
+		outStream << Qt::endl;
+#else
+		outStream << endl;
+#endif
+
+		// FastText links
+		bool writeFLCommand = false;
+		if (document.pageFunction() == TeletextDocument::PFLevelOnePage && document.subPage(p)->packetExists(27,0)) {
+			// Subpage has FastText links - if any link to a specific subpage, we need to write X/27/0 as raw
+			// otherwise we write the links as a human-readable FL command later on
+			writeFLCommand = true;
+			// TODO uncomment this when we can edit FastText subpage links
+			/*for (int i=0; i<6; i++)
+				if (document.subPage(p)->fastTextLinkSubPageNumber(i) != 0x3f7f) {
+					writeFLCommand = false;
+					break;
+				}*/
+		}
+
+		// X/27 then X/28 always come first
+		for (int i=(writeFLCommand ? 1 : 0); i<16; i++)
+			writeHammingPacket(27, i);
+		for (int i=0; i<16; i++)
+			writeHammingPacket(28, i);
+
+		if (document.packetCoding() == TeletextDocument::Coding7bit) {
+			// For 7 bit coding i.e. Level One Pages, X/26 are written before X/1 to X/25
+			for (int i=0; i<16; i++)
+				writeHammingPacket(26, i);
+			for (int i=1; i<=24; i++)
+				write7bitPacket(i);
+		} else {
+			// For others (especially (G)POP pages) X/1 to X/25 are written before X/26
+			for (int i=1; i<=25; i++)
+				writeHammingPacket(i);
+			for (int i=0; i<16; i++)
+				writeHammingPacket(26, i);
+		}
+
+		if (writeFLCommand) {
+			outStream << "FL,";
+			for (int i=0; i<6; i++) {
+				// Stored as page link with relative magazine number, convert to absolute page number for display
+				int absoluteLinkPageNumber = document.subPage(p)->fastTextLinkPageNumber(i) ^ (document.pageNumber() & 0x700);
+				// Fix magazine 0 to 8
+				if ((absoluteLinkPageNumber & 0x700) == 0x000)
+					absoluteLinkPageNumber |= 0x800;
+
+				outStream << QString("%1").arg(absoluteLinkPageNumber, 3, 16, QChar('0'));
+				if (i<5)
+					outStream << ',';
+			}
+#if QT_VERSION >= QT_VERSION_CHECK(5, 14, 0)
+			outStream << Qt::endl;
+#else
+			outStream << endl;
+#endif
+		}
+
+		subPageNumber++;
+	}
+}
+
+void exportM29File(QSaveFile &file, const TeletextDocument &document)
+{
+	const PageBase &subPage = *document.currentSubPage();
+	QTextStream outStream(&file);
+
+	auto writeM29Packet=[&](int designationCode)
+	{
+		if (subPage.packetExists(28, designationCode)) {
+			QByteArray outLine = subPage.packet(28, designationCode);
+
+			outStream << QString("OL,29,");
+			// TTI stores raw values with bit 6 set, doesn't do Hamming encoding
+			outLine[0] = designationCode | 0x40;
+			for (int c=1; c<outLine.size(); c++)
+				outLine[c] = outLine.at(c) | 0x40;
+#if QT_VERSION >= QT_VERSION_CHECK(5, 14, 0)
+			outStream << outLine << Qt::endl;
+#else
+			outStream << outLine << endl;
+#endif
+		}
+	};
+
+#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
+	outStream.setCodec("ISO-8859-1");
+#else
+	outStream.setEncoding(QStringConverter::Latin1);
+#endif
+
+	if (!document.description().isEmpty())
+#if QT_VERSION >= QT_VERSION_CHECK(5, 14, 0)
+	outStream << "DE," << document.description() << Qt::endl;
+#else
+	outStream << "DE," << document.description() << endl;
+#endif
+
+	// Force page number to xFF
+	outStream << QString("PN,%1ff00").arg(document.pageNumber() >> 8, 1, 16);
+#if QT_VERSION >= QT_VERSION_CHECK(5, 14, 0)
+	outStream << Qt::endl;
+#else
+	outStream << endl;
+#endif
+
+	outStream << "PS,8000";
+#if QT_VERSION >= QT_VERSION_CHECK(5, 14, 0)
+	outStream << Qt::endl;
+#else
+	outStream << endl;
+#endif
+
+	writeM29Packet(0);
+	writeM29Packet(1);
+	writeM29Packet(4);
+}
+
+void exportT42File(QSaveFile &file, const TeletextDocument &document)
+{
+	const PageBase &subPage = *document.currentSubPage();
+
+	QDataStream outStream(&file);
+	// Displayable row header we export as spaces, hence the (odd parity valid) 0x20 init value
+	QByteArray outLine(42, 0x20);
+	int magazineNumber = (document.pageNumber() & 0xf00) >> 8;
+
+	auto write7bitPacket=[&](int packetNumber)
+	{
+		if (subPage.packetExists(packetNumber)) {
+			outLine[0] = hamming_8_4_encode[magazineNumber | ((packetNumber & 0x01) << 3)];
+			outLine[1] = hamming_8_4_encode[packetNumber >> 1];
+			outLine.replace(2, 40, subPage.packet(packetNumber));
+
+			// Odd parity encoding
+			for (int c=0; c<outLine.size(); c++) {
+				char p = outLine.at(c);
+
+				// Recursively divide integer into two equal halves and take their XOR until only 1 bit is left
+				p ^= p >> 4;
+				p ^= p >> 2;
+				p ^= p >> 1;
+				// If last bit left is 0 then it started with an even number of bits, so do the odd parity
+				if (!(p & 1))
+					outLine[c] = outLine.at(c) | 0x80;
+			}
+			outStream.writeRawData(outLine.constData(), 42);
+		}
+	};
+
+	auto writeHamming8_4Packet=[&](int packetNumber, int designationCode=0)
+	{
+		if (subPage.packetExists(packetNumber, designationCode)) {
+			outLine[0] = hamming_8_4_encode[magazineNumber | ((packetNumber & 0x01) << 3)];
+			outLine[1] = hamming_8_4_encode[packetNumber >> 1];
+			outLine.replace(2, 40, subPage.packet(packetNumber, designationCode));
+			outLine[2] = hamming_8_4_encode[designationCode];
+
+			for (int c=3; c<outLine.size(); c++)
+				outLine[c] = hamming_8_4_encode[(int)outLine.at(c)];
+
+			outStream.writeRawData(outLine.constData(), 42);
+		}
+	};
+
+	auto writeHamming24_18Packet=[&](int packetNumber, int designationCode=0)
+	{
+		if (subPage.packetExists(packetNumber, designationCode)) {
+			outLine[0] = hamming_8_4_encode[magazineNumber | ((packetNumber & 0x01) << 3)];
+			outLine[1] = hamming_8_4_encode[packetNumber >> 1];
+			outLine.replace(2, 40, subPage.packet(packetNumber, designationCode));
+			outLine[2] = hamming_8_4_encode[designationCode];
+
+			for (int c=3; c<outLine.size(); c+=3) {
+				unsigned int D5_D11;
+				unsigned int D12_D18;
+				unsigned int P5, P6;
+				unsigned int Byte_0;
+
+				const unsigned int toEncode = outLine[c] | (outLine[c+1] << 6) | (outLine[c+2] << 12);
+
+				Byte_0 = (hamming_24_18_forward[0][(toEncode >> 0) & 0xff] ^ hamming_24_18_forward[1][(toEncode >> 8) & 0xff] ^ hamming_24_18_forward_2[(toEncode >> 16) & 0x03]);
+				outLine[c] = Byte_0;
+
+				D5_D11 = (toEncode >> 4) & 0x7f;
+				D12_D18 = (toEncode >> 11) & 0x7f;
+
+				P5 = 0x80 & ~(hamming_24_18_parities[0][D12_D18] << 2);
+				outLine[c+1] = D5_D11 | P5;
+
+				P6 = 0x80 & ((hamming_24_18_parities[0][Byte_0] ^ hamming_24_18_parities[0][D5_D11]) << 2);
+				outLine[c+2] = D12_D18 | P6;
+			}
+
+			outStream.writeRawData(outLine.constData(), 42);
+		}
+	};
+
+
+	if (magazineNumber == 8)
+		magazineNumber = 0;
+
+	// Write X/0 separately as it features both Hamming 8/4 and 7-bit odd parity within
+	outLine[0] = magazineNumber & 0x07;
+	outLine[1] = 0; // Packet number 0
+	outLine[2] = document.pageNumber() & 0x00f;
+	outLine[3] = (document.pageNumber() & 0x0f0) >> 4;
+	outLine[4] = 0; // Subcode S1 - always export as 0
+	outLine[5] = subPage.controlBit(PageBase::C4ErasePage) << 3;
+	outLine[6] = 0; // Subcode S3 - always export as 0
+	outLine[7] = (subPage.controlBit(PageBase::C5Newsflash) << 2) | (subPage.controlBit(PageBase::C6Subtitle) << 3);
+	outLine[8] = subPage.controlBit(PageBase::C7SuppressHeader) | (subPage.controlBit(PageBase::C8Update) << 1) | (subPage.controlBit(PageBase::C9InterruptedSequence) << 2) | (subPage.controlBit(PageBase::C10InhibitDisplay) << 3);
+	outLine[9] = subPage.controlBit(PageBase::C11SerialMagazine) | (subPage.controlBit(PageBase::C14NOS) << 1) | (subPage.controlBit(PageBase::C13NOS) << 2) | (subPage.controlBit(PageBase::C12NOS) << 3);
+
+	for (int i=0; i<10; i++)
+		outLine[i] = hamming_8_4_encode[(int)outLine.at(i)];
+
+	// If we allow text in the row header, we'd odd-parity encode it here
+
+	outStream.writeRawData(outLine.constData(), 42);
+
+	// After X/0, X/27 then X/28 always come next
+	for (int i=0; i<4; i++)
+		writeHamming8_4Packet(27, i);
+	for (int i=4; i<16; i++)
+		writeHamming24_18Packet(27, i);
+	for (int i=0; i<16; i++)
+		writeHamming24_18Packet(28, i);
+
+	if (document.packetCoding() == TeletextDocument::Coding7bit) {
+		// For 7 bit coding i.e. Level One Pages, X/26 are written before X/1 to X/25
+		for (int i=0; i<16; i++)
+			writeHamming24_18Packet(26, i);
+		for (int i=1; i<=24; i++)
+			write7bitPacket(i);
+	} else {
+		// For others (especially (G)POP pages) X/1 to X/25 are written before X/26
+		if (document.packetCoding() == TeletextDocument::Coding18bit)
+			for (int i=1; i<=25; i++)
+				writeHamming24_18Packet(i);
+		else if (document.packetCoding() == TeletextDocument::Coding4bit)
+			for (int i=1; i<=25; i++)
+				writeHamming8_4Packet(i);
+		else
+			qDebug("Exported broken file as page coding is not supported");
+		for (int i=0; i<16; i++)
+			writeHamming24_18Packet(26, i);
+	}
+}
+
+QByteArray rowPacketAlways(PageBase *subPage, int packetNumber)
+{
+	if (subPage->packetExists(packetNumber))
+		return subPage->packet(packetNumber);
+	else
+		return QByteArray(40, ' ');
+}
+
+QString exportHashStringPage(LevelOnePage *subPage)
+{
+	int hashDigits[1167]={0};
+	int totalBits, charBit;
+	const char base64[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-_";
+	QString hashString;
+
+	// TODO int editTFCharacterSet = 5;
+	bool blackForeground = false;
+
+	for (int r=0; r<25; r++) {
+		QByteArray rowPacket = rowPacketAlways(subPage, r);
+		for (int c=0; c<40; c++) {
+			if (rowPacket.at(c) == 0x00 || rowPacket.at(c) == 0x10)
+				blackForeground = true;
+			for (int b=0; b<7; b++) {
+				totalBits = (r * 40 + c) * 7 + b;
+				charBit = ((rowPacket.at(c)) >> (6 - b)) & 0x01;
+				hashDigits[totalBits / 6] |= charBit << (5 - (totalBits % 6));
+			}
+		}
+	}
+
+	hashString.append(QString("#%1:").arg(blackForeground ? 8 : 0, 1, 16));
+
+	for (int i=0; i<1167; i++)
+		hashString.append(base64[hashDigits[i]]);
+
+	return hashString;
+}
+
+QString exportHashStringPackets(LevelOnePage *subPage)
+{
+	auto colourToHexString=[&](int whichCLUT)
+	{
+		QString resultHexString;
+
+		for (int i=whichCLUT*8; i<whichCLUT*8+8; i++)
+			resultHexString.append(QString("%1").arg(subPage->CLUT(i), 3, 16, QChar('0')));
+		return resultHexString;
+	};
+
+	const char base64[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-_";
+	QString result;
+
+	if (subPage->packetExists(28,0) || subPage->packetExists(28,4)) {
+		// X/28/0 and X/28/4 are duplicates apart from the CLUT definitions
+		// Assemble the duplicate beginning and ending of both packets
+		QString x28StringBegin, x28StringEnd;
+
+		x28StringBegin.append(QString("00%1").arg((subPage->defaultCharSet() << 3) | subPage->defaultNOS(), 2, 16, QChar('0')).toUpper());
+		x28StringBegin.append(QString("%1").arg((subPage->secondCharSet() << 3) | subPage->secondNOS(), 2, 16, QChar('0')).toUpper());
+		x28StringBegin.append(QString("%1%2%3%4").arg(subPage->leftSidePanelDisplayed(), 1, 10).arg(subPage->rightSidePanelDisplayed(), 1, 10).arg(subPage->sidePanelStatusL25(), 1, 10).arg(subPage->sidePanelColumns(), 1, 16));
+
+		x28StringEnd = QString("%1%2%3%4").arg(subPage->defaultScreenColour(), 2, 16, QChar('0')).arg(subPage->defaultRowColour(), 2, 16, QChar('0')).arg(subPage->blackBackgroundSubst(), 1, 10).arg(subPage->colourTableRemap(), 1, 10);
+
+		if (subPage->packetExists(28,0))
+			result.append(":X280=" + x28StringBegin + colourToHexString(2) + colourToHexString(3) + x28StringEnd);
+		if (subPage->packetExists(28,4))
+			result.append(":X284=" + x28StringBegin + colourToHexString(0) + colourToHexString(1) + x28StringEnd);
+	}
+
+	if (!subPage->enhancements()->isEmpty()) {
+		result.append(":X26=");
+		for (int i=0; i<subPage->enhancements()->size(); i++) {
+			result.append(base64[subPage->enhancements()->at(i).data() >> 1]);
+			result.append(base64[subPage->enhancements()->at(i).mode() | ((subPage->enhancements()->at(i).data() & 1) << 5)]);
+			result.append(base64[subPage->enhancements()->at(i).address()]);
+		}
+	}
+
+	result.append(QString(":PS=%1").arg(0x8000 | controlBitsToPS(subPage), 0, 16, QChar('0')));
+	return result;
+}

src/qteletextmaker/loadsave.h

@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2020, 2021 Gavin MacGregor
+ * Copyright (C) 2020-2024 Gavin MacGregor
  *
  * This file is part of QTeletextMaker.
  *
@@ -31,14 +31,17 @@
 #include "pagebase.h"
 
 void loadTTI(QFile *inFile, TeletextDocument *document);
+void importT42(QFile *inFile, TeletextDocument *document);
 
-int controlBitsToPS(PageBase *);
+int controlBitsToPS(PageBase *subPage);
 
-void saveTTI(QSaveFile &, const TeletextDocument &);
+void saveTTI(QSaveFile &file, const TeletextDocument &document);
+void exportT42File(QSaveFile &file, const TeletextDocument &document);
+void exportM29File(QSaveFile &file, const TeletextDocument &document);
 
-QByteArray rowPacketAlways(PageBase *, int);
+QByteArray rowPacketAlways(PageBase *subPage, int packetNumber);
 
-QString exportHashStringPage(LevelOnePage *);
+QString exportHashStringPage(LevelOnePage *subPage);
 QString exportHashStringPackets(LevelOnePage *subPage);
 
 #endif

src/qteletextmaker/main.cpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2020, 2021 Gavin MacGregor
+ * Copyright (C) 2020-2024 Gavin MacGregor
  *
  * This file is part of QTeletextMaker.
  *
@@ -24,13 +24,13 @@
 
 int main(int argc, char *argv[])
 {
-	Q_INIT_RESOURCE(qteletextmaker);
+	Q_INIT_RESOURCE(actionicons);
 	QApplication app(argc, argv);
 	QApplication::setApplicationName("QTeletextMaker");
 	QApplication::setApplicationDisplayName(QApplication::applicationName());
 	QApplication::setOrganizationName("gkmac.co.uk");
 	QApplication::setOrganizationDomain("gkmac.co.uk");
-	QApplication::setApplicationVersion("0.1-alpha");
+	QApplication::setApplicationVersion("0.6.5-beta");
 	QCommandLineParser parser;
 	parser.setApplicationDescription(QApplication::applicationName());
 	parser.addHelpOption();

src/qteletextmaker/mainwidget.cpp

@@ -0,0 +1,812 @@
+/*
+ * Copyright (C) 2020-2024 Gavin MacGregor
+ *
+ * This file is part of QTeletextMaker.
+ *
+ * QTeletextMaker is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * QTeletextMaker is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with QTeletextMaker.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include <QApplication>
+#include <QBitmap>
+#include <QClipboard>
+#include <QFrame>
+#include <QGraphicsItem>
+#include <QGraphicsItemGroup>
+#include <QGraphicsProxyWidget>
+#include <QGraphicsScene>
+#include <QGraphicsSceneEvent>
+#include <QImage>
+#include <QKeyEvent>
+#include <QMenu>
+#include <QMimeData>
+#include <QPainter>
+#include <QPair>
+#include <QSet>
+#include <QUndoCommand>
+#include <QWidget>
+#include <vector>
+#include <iostream>
+
+#include "mainwidget.h"
+
+#include "decode.h"
+#include "document.h"
+#include "keymap.h"
+#include "levelonecommands.h"
+#include "levelonepage.h"
+#include "render.h"
+#include "x26triplets.h"
+
+TeletextWidget::TeletextWidget(QFrame *parent) : QFrame(parent)
+{
+	this->resize(QSize(480, 250));
+	this->setAttribute(Qt::WA_NoSystemBackground);
+	this->setAttribute(Qt::WA_InputMethodEnabled, true);
+	m_teletextDocument = new TeletextDocument();
+	m_levelOnePage = m_teletextDocument->currentSubPage();
+	m_pageDecode.setTeletextPage(m_levelOnePage);
+	m_pageRender.setDecoder(&m_pageDecode);
+	m_insertMode = false;
+	m_selectionInProgress = false;
+	setFocusPolicy(Qt::StrongFocus);
+	m_flashTiming = m_flashPhase = 0;
+	connect(&m_pageRender, &TeletextPageRender::flashChanged, this, &TeletextWidget::updateFlashTimer);
+	connect(&m_pageDecode, &TeletextPageDecode::sidePanelsChanged, this, &TeletextWidget::changeSize);
+	connect(m_teletextDocument, &TeletextDocument::subPageSelected, this, &TeletextWidget::subPageSelected);
+	connect(m_teletextDocument, &TeletextDocument::contentsChanged, this, &TeletextWidget::refreshPage);
+	connect(m_teletextDocument, &TeletextDocument::colourChanged, &m_pageRender, &TeletextPageRender::colourChanged);
+}
+
+TeletextWidget::~TeletextWidget()
+{
+	if (m_flashTimer.isActive())
+		m_flashTimer.stop();
+	delete m_teletextDocument;
+}
+
+// Re-implemented so compose/dead keys work properly
+void TeletextWidget::inputMethodEvent(QInputMethodEvent* event)
+{
+	if (!event->commitString().isEmpty()) {
+		QKeyEvent keyEvent(QEvent::KeyPress, 0, Qt::NoModifier, event->commitString());
+
+		keyPressEvent(&keyEvent);
+	}
+	event->accept();
+}
+
+void TeletextWidget::subPageSelected()
+{
+	m_levelOnePage = m_teletextDocument->currentSubPage();
+	m_pageDecode.setTeletextPage(m_levelOnePage);
+	m_pageDecode.decodePage();
+	m_pageRender.renderPage(true);
+	update();
+}
+
+void TeletextWidget::refreshPage()
+{
+	m_pageDecode.decodePage();
+	update();
+}
+
+void TeletextWidget::paintEvent(QPaintEvent *event)
+{
+	Q_UNUSED(event);
+	QPainter widgetPainter(this);
+
+	m_pageRender.renderPage();
+	widgetPainter.drawImage(m_pageDecode.leftSidePanelColumns()*12, 0, *m_pageRender.image(m_flashPhase), 0, 0, 480, 250);
+	if (m_pageDecode.leftSidePanelColumns())
+		widgetPainter.drawImage(0, 0, *m_pageRender.image(m_flashPhase), 864-m_pageDecode.leftSidePanelColumns()*12, 0, m_pageDecode.leftSidePanelColumns()*12, 250);
+	if (m_pageDecode.rightSidePanelColumns())
+		widgetPainter.drawImage(480+m_pageDecode.leftSidePanelColumns()*12, 0, *m_pageRender.image(m_flashPhase), 480, 0, m_pageDecode.rightSidePanelColumns()*12, 250);
+}
+
+void TeletextWidget::updateFlashTimer(int newFlashTimer)
+{
+	m_flashTiming = newFlashTimer;
+	m_flashPhase = 0;
+	if (newFlashTimer == 0) {
+		m_flashTimer.stop();
+		update();
+		return;
+	}
+	m_flashTimer.start((newFlashTimer == 1) ? 500 : 167, this);
+}
+
+void TeletextWidget::timerEvent(QTimerEvent *event)
+{
+	if (event->timerId() == m_flashTimer.timerId()) {
+		if (m_flashTiming == 1)
+			m_flashPhase += 3;
+		else
+			m_flashPhase++;
+		if (m_flashPhase == 6)
+			m_flashPhase = 0;
+		update();
+	} else
+		QWidget::timerEvent(event);
+}
+
+void TeletextWidget::pauseFlash(bool pauseNow)
+{
+	if (pauseNow && m_flashTiming != 0) {
+		m_flashTimer.stop();
+		m_flashPhase = 0;
+		update();
+	} else if (m_flashTiming != 0)
+		m_flashTimer.start((m_flashTiming == 1) ? 500 : 167, this);
+}
+
+void TeletextWidget::setInsertMode(bool insertMode)
+{
+	m_insertMode = insertMode;
+}
+
+void TeletextWidget::setReveal(bool reveal)
+{
+	m_pageRender.setReveal(reveal);
+	update();
+}
+
+void TeletextWidget::setShowControlCodes(bool showControlCodes)
+{
+	m_pageRender.setShowControlCodes(showControlCodes);
+	update();
+}
+
+void TeletextWidget::setRenderMode(TeletextPageRender::RenderMode renderMode)
+{
+	m_pageRender.setRenderMode(renderMode);
+	update();
+}
+
+void TeletextWidget::setControlBit(int bitNumber, bool active)
+{
+	m_levelOnePage->setControlBit(bitNumber, active);
+	if (bitNumber == 1 || bitNumber == 2) {
+		m_pageDecode.decodePage();
+		m_pageRender.renderPage(true);
+		update();
+	}
+}
+
+void TeletextWidget::setDefaultCharSet(int newDefaultCharSet)
+{
+	m_levelOnePage->setDefaultCharSet(newDefaultCharSet);
+}
+
+void TeletextWidget::setDefaultNOS(int newDefaultNOS)
+{
+	m_levelOnePage->setDefaultNOS(newDefaultNOS);
+}
+
+void TeletextWidget::setSidePanelWidths(int newLeftSidePanelColumns, int newRightSidePanelColumns)
+{
+	m_levelOnePage->setLeftSidePanelDisplayed(newLeftSidePanelColumns != 0);
+	m_levelOnePage->setRightSidePanelDisplayed(newRightSidePanelColumns != 0);
+	if (newLeftSidePanelColumns)
+		m_levelOnePage->setSidePanelColumns((newLeftSidePanelColumns == 16) ? 0 : newLeftSidePanelColumns);
+	else
+		m_levelOnePage->setSidePanelColumns((newRightSidePanelColumns == 0) ? 0 : 16-newRightSidePanelColumns);
+	m_pageDecode.updateSidePanels();
+}
+
+void TeletextWidget::setSidePanelAtL35Only(bool newSidePanelAtL35Only)
+{
+	m_levelOnePage->setSidePanelStatusL25(!newSidePanelAtL35Only);
+	m_pageDecode.updateSidePanels();
+}
+
+void TeletextWidget::changeSize()
+{
+	setFixedSize(QSize(480+(pageDecode()->leftSidePanelColumns()+pageDecode()->rightSidePanelColumns())*12, 250));
+	emit sizeChanged();
+}
+
+void TeletextWidget::keyPressEvent(QKeyEvent *event)
+{
+	if (event->key() < 0x01000000) {
+		// A character-typing key was pressed
+		// Try to keymap it, if not keymapped then plain ASCII code (may be) returned
+		char mappedKeyPress = keymapping[m_pageDecode.level1CharSet(m_teletextDocument->cursorRow(), m_teletextDocument->cursorColumn())].value(event->text().at(0), *qPrintable(event->text().at(0)));
+		if (mappedKeyPress >= 0x00 && mappedKeyPress <= 0x1f)
+			return;
+		// If outside ASCII map then the character can't be represented by current Level 1 character set
+		// Map it to block character so it doesn't need to be inserted-between later on
+		if (mappedKeyPress & 0x80)
+			mappedKeyPress = 0x7f;
+		if (m_pageDecode.level1MosaicAttr(m_teletextDocument->cursorRow(), m_teletextDocument->cursorColumn()) && (mappedKeyPress < 0x40 || mappedKeyPress > 0x5f)) {
+			// We're on a mosaic and a blast-through character was NOT pressed
+			if (event->key() >= Qt::Key_0 && event->key() <= Qt::Key_9 && event->modifiers() & Qt::KeypadModifier) {
+				switch (event->key()) {
+					case Qt::Key_7:
+						toggleCharacterBit(0x01); // Top left
+						break;
+					case Qt::Key_8:
+						toggleCharacterBit(0x02); // Top right
+						break;
+					case Qt::Key_4:
+						toggleCharacterBit(0x04); // Middle left
+						break;
+					case Qt::Key_5:
+						toggleCharacterBit(0x08); // Middle right
+						break;
+					case Qt::Key_1:
+						toggleCharacterBit(0x10); // Bottom left
+						break;
+					case Qt::Key_2:
+						toggleCharacterBit(0x40); // Bottom right
+						break;
+					case Qt::Key_9:
+						toggleCharacterBit(0x5f); // Invert
+						break;
+					case Qt::Key_6:
+						toggleCharacterBit(0x7f); // Set all
+						break;
+					case Qt::Key_3:
+						toggleCharacterBit(0x20); // Clear all
+						break;
+					case Qt::Key_0:
+						toggleCharacterBit(0x66); // Dither
+						break;
+				}
+				return;
+			}
+			if (event->key() == Qt::Key_Space) {
+				setCharacter(0x20);
+				return;
+			}
+
+			// This macro is defined in keymap.h if no native scan codes are defined
+			// for the platform we are compiling on
+#ifndef QTTM_NONATIVESCANCODES
+			if (event->nativeScanCode() > 1) {
+				switch (event->nativeScanCode()) {
+					case mosaicNativeScanCodes[0]:
+						toggleCharacterBit(0x01); // Top left
+						break;
+					case mosaicNativeScanCodes[1]:
+						toggleCharacterBit(0x02); // Top right
+						break;
+					case mosaicNativeScanCodes[2]:
+						toggleCharacterBit(0x04); // Middle left
+						break;
+					case mosaicNativeScanCodes[3]:
+						toggleCharacterBit(0x08); // Middle right
+						break;
+					case mosaicNativeScanCodes[4]:
+						toggleCharacterBit(0x10); // Bottom left
+						break;
+					case mosaicNativeScanCodes[5]:
+						toggleCharacterBit(0x40); // Bottom right
+						break;
+					case mosaicNativeScanCodes[6]:
+						toggleCharacterBit(0x5f); // Invert
+						break;
+					case mosaicNativeScanCodes[7]:
+						toggleCharacterBit(0x7f); // Set all
+						break;
+					case mosaicNativeScanCodes[8]:
+						toggleCharacterBit(0x20); // Clear all
+						break;
+					case mosaicNativeScanCodes[9]:
+						toggleCharacterBit(0x66); // Dither
+						break;
+				}
+				return;
+			} else
+				qDebug("nativeScanCode not usable! Please use numeric keypad to toggle mosaic bits.");
+#else
+			qDebug("nativeScanCode was not compiled in! Please use numeric keypad to toggle mosaic bits.");
+#endif
+
+			// TODO some contingency plan if nativeScanCode didn't work?
+			return;
+		}
+		setCharacter(mappedKeyPress);
+		return;
+	}
+
+	switch (event->key()) {
+		case Qt::Key_Backspace:
+			m_teletextDocument->undoStack()->push(new BackspaceKeyCommand(m_teletextDocument, m_insertMode));
+			break;
+		case Qt::Key_Tab:
+			m_teletextDocument->undoStack()->push(new TypeCharacterCommand(m_teletextDocument, 0x20, true));
+			break;
+		case Qt::Key_Delete:
+			m_teletextDocument->undoStack()->push(new DeleteKeyCommand(m_teletextDocument));
+			break;
+		case Qt::Key_Insert:
+			emit insertKeyPressed();
+			break;
+
+		case Qt::Key_Up:
+			if (event->modifiers() & Qt::ControlModifier)
+				shiftMosaics(event->key());
+			else
+				m_teletextDocument->cursorUp(event->modifiers() & Qt::ShiftModifier);
+			break;
+		case Qt::Key_Down:
+			if (event->modifiers() & Qt::ControlModifier)
+				shiftMosaics(event->key());
+			else
+				m_teletextDocument->cursorDown(event->modifiers() & Qt::ShiftModifier);
+			break;
+		case Qt::Key_Left:
+			if (event->modifiers() & Qt::ControlModifier)
+				shiftMosaics(event->key());
+			else
+				m_teletextDocument->cursorLeft(event->modifiers() & Qt::ShiftModifier);
+			break;
+		case Qt::Key_Right:
+			if (event->modifiers() & Qt::ControlModifier)
+				shiftMosaics(event->key());
+			else
+				m_teletextDocument->cursorRight(event->modifiers() & Qt::ShiftModifier);
+			break;
+		case Qt::Key_Return:
+		case Qt::Key_Enter:
+			m_teletextDocument->cursorDown();
+			m_teletextDocument->moveCursor(m_teletextDocument->cursorRow(), 0);
+			break;
+		case Qt::Key_Home:
+			m_teletextDocument->moveCursor(m_teletextDocument->cursorRow(), 0, event->modifiers() & Qt::ShiftModifier);
+			break;
+		case Qt::Key_End:
+			m_teletextDocument->moveCursor(m_teletextDocument->cursorRow(), 39, event->modifiers() & Qt::ShiftModifier);
+			break;
+
+		case Qt::Key_PageUp:
+			m_teletextDocument->selectSubPageNext();
+			break;
+		case Qt::Key_PageDown:
+			m_teletextDocument->selectSubPagePrevious();
+			break;
+		default:
+			QFrame::keyPressEvent(event);
+	}
+}
+
+void TeletextWidget::setCharacter(unsigned char newCharacter)
+{
+	m_teletextDocument->undoStack()->push(new TypeCharacterCommand(m_teletextDocument, newCharacter, m_insertMode));
+}
+
+void TeletextWidget::toggleCharacterBit(unsigned char bitToToggle)
+{
+	m_teletextDocument->undoStack()->push(new ToggleMosaicBitCommand(m_teletextDocument, bitToToggle));
+}
+
+void TeletextWidget::shiftMosaics(int key)
+{
+	if (!m_teletextDocument->selectionActive())
+		return;
+
+	QSet<QPair<int, int>> mosaicList;
+
+	for (int r=m_teletextDocument->selectionTopRow(); r<=m_teletextDocument->selectionBottomRow(); r++)
+		for (int c=m_teletextDocument->selectionLeftColumn(); c<=m_teletextDocument->selectionRightColumn(); c++)
+			if (m_pageDecode.level1MosaicChar(r, c))
+				mosaicList.insert(qMakePair(r, c));
+
+	if (!mosaicList.isEmpty())
+		switch (key) {
+			case Qt::Key_Up:
+				m_teletextDocument->undoStack()->push(new ShiftMosaicsUpCommand(m_teletextDocument, mosaicList));
+				break;
+			case Qt::Key_Down:
+				m_teletextDocument->undoStack()->push(new ShiftMosaicsDownCommand(m_teletextDocument, mosaicList));
+				break;
+			case Qt::Key_Left:
+				m_teletextDocument->undoStack()->push(new ShiftMosaicsLeftCommand(m_teletextDocument, mosaicList));
+				break;
+			case Qt::Key_Right:
+				m_teletextDocument->undoStack()->push(new ShiftMosaicsRightCommand(m_teletextDocument, mosaicList));
+				break;
+		}
+}
+
+void TeletextWidget::selectionToClipboard()
+{
+	QByteArray nativeData;
+	QString plainTextData;
+	QImage *imageData = nullptr;
+	QClipboard *clipboard = QApplication::clipboard();
+
+	nativeData.resize(2 + m_teletextDocument->selectionWidth() * m_teletextDocument->selectionHeight());
+	nativeData[0] = m_teletextDocument->selectionHeight();
+	nativeData[1] = m_teletextDocument->selectionWidth();
+
+	plainTextData.reserve((m_teletextDocument->selectionWidth()+1) * m_teletextDocument->selectionHeight() - 1);
+
+	int i = 2;
+
+	for (int r=m_teletextDocument->selectionTopRow(); r<=m_teletextDocument->selectionBottomRow(); r++) {
+		for (int c=m_teletextDocument->selectionLeftColumn(); c<=m_teletextDocument->selectionRightColumn(); c++) {
+			nativeData[i++] = m_teletextDocument->currentSubPage()->character(r, c);
+
+			if (m_teletextDocument->currentSubPage()->character(r, c) >= 0x20)
+				plainTextData.append(keymapping[m_pageDecode.level1CharSet(r, c)].key(m_teletextDocument->currentSubPage()->character(r, c), QChar(m_teletextDocument->currentSubPage()->character(r, c))));
+			else
+				plainTextData.append(' ');
+
+			if (m_pageDecode.level1MosaicChar(r, c)) {
+				// A first mosaic character was found so create the image "just in time"
+				if (imageData == nullptr) {
+					imageData = new QImage(m_teletextDocument->selectionWidth() * 2, m_teletextDocument->selectionHeight() * 3, QImage::Format_Mono);
+
+					imageData->fill(0);
+				}
+
+				const int ix = (c - m_teletextDocument->selectionLeftColumn()) * 2;
+				const int iy = (r - m_teletextDocument->selectionTopRow()) * 3;
+
+				if (m_teletextDocument->currentSubPage()->character(r, c) & 0x01)
+					imageData->setPixel(ix, iy, 1);
+				if (m_teletextDocument->currentSubPage()->character(r, c) & 0x02)
+					imageData->setPixel(ix+1, iy, 1);
+				if (m_teletextDocument->currentSubPage()->character(r, c) & 0x04)
+					imageData->setPixel(ix, iy+1, 1);
+				if (m_teletextDocument->currentSubPage()->character(r, c) & 0x08)
+					imageData->setPixel(ix+1, iy+1, 1);
+				if (m_teletextDocument->currentSubPage()->character(r, c) & 0x10)
+					imageData->setPixel(ix, iy+2, 1);
+				if (m_teletextDocument->currentSubPage()->character(r, c) & 0x40)
+					imageData->setPixel(ix+1, iy+2, 1);
+			}
+		}
+
+		plainTextData.append('\n');
+	}
+
+	QMimeData *mimeData = new QMimeData();
+	mimeData->setData("application/x-teletext", nativeData);
+	mimeData->setText(plainTextData);
+	if (imageData != nullptr) {
+		mimeData->setImageData(*imageData);
+		delete imageData;
+	}
+
+	clipboard->setMimeData(mimeData);
+}
+
+void TeletextWidget::cut()
+{
+	if (!m_teletextDocument->selectionActive())
+		return;
+
+	selectionToClipboard();
+	m_teletextDocument->undoStack()->push(new CutCommand(m_teletextDocument));
+}
+
+void TeletextWidget::copy()
+{
+	if (!m_teletextDocument->selectionActive())
+		return;
+
+	selectionToClipboard();
+}
+
+void TeletextWidget::paste()
+{
+	m_teletextDocument->undoStack()->push(new PasteCommand(m_teletextDocument, m_pageDecode.level1CharSet(m_teletextDocument->cursorRow(), m_teletextDocument->cursorColumn())));
+}
+
+QPair<int, int> TeletextWidget::mouseToRowAndColumn(const QPoint &mousePosition)
+{
+	int row = mousePosition.y() / 10;
+	int column = mousePosition.x() / 12 - m_pageDecode.leftSidePanelColumns();
+	if (row < 1)
+		row = 1;
+	if (row > 24)
+		row = 24;
+	if (column < 0)
+		column = 0;
+	if (column > 39)
+		column = 39;
+	return qMakePair(row, column);
+}
+
+void TeletextWidget::mousePressEvent(QMouseEvent *event)
+{
+	if (event->button() == Qt::LeftButton) {
+		m_teletextDocument->cancelSelection();
+		QPair<int, int> position = mouseToRowAndColumn(event->pos());
+		m_teletextDocument->moveCursor(position.first, position.second);
+		update();
+	}
+}
+
+void TeletextWidget::mouseMoveEvent(QMouseEvent *event)
+{
+	if (event->buttons() & Qt::LeftButton) {
+		QPair<int, int> position = mouseToRowAndColumn(event->pos());
+		if (position.first != m_teletextDocument->cursorRow() || position.second != m_teletextDocument->cursorColumn()) {
+			if (!m_selectionInProgress) {
+				m_selectionInProgress = true;
+				m_teletextDocument->setSelectionCorner(m_teletextDocument->cursorRow(), m_teletextDocument->cursorColumn());
+			}
+			m_teletextDocument->moveCursor(position.first, position.second, true);
+		}
+	}
+}
+
+void TeletextWidget::mouseReleaseEvent(QMouseEvent *event)
+{
+	if (event->button() == Qt::LeftButton)
+		m_selectionInProgress = false;
+}
+
+void TeletextWidget::focusInEvent(QFocusEvent *event)
+{
+	QFrame::focusInEvent(event);
+}
+
+void TeletextWidget::focusOutEvent(QFocusEvent *event)
+{
+	QFrame::focusOutEvent(event);
+}
+
+
+LevelOneScene::LevelOneScene(QWidget *levelOneWidget, QObject *parent) : QGraphicsScene(parent)
+{
+	m_grid = false;
+
+	// These dimensions are scratch, setBorderDimensions will get called straight away to adjust them
+	setSceneRect(0, 0, 600, 288);
+
+	// Full screen colours
+	m_fullScreenTopRectItem = new QGraphicsRectItem(0, 0, 600, 19);
+	m_fullScreenTopRectItem->setPen(Qt::NoPen);
+	m_fullScreenTopRectItem->setBrush(QBrush(QColor(0, 0, 0)));
+	addItem(m_fullScreenTopRectItem);
+	m_fullScreenBottomRectItem = new QGraphicsRectItem(0, 269, 600, 19);
+	m_fullScreenBottomRectItem->setPen(Qt::NoPen);
+	m_fullScreenBottomRectItem->setBrush(QBrush(QColor(0, 0, 0)));
+	addItem(m_fullScreenBottomRectItem);
+
+	// Full row colours
+	for (int r=0; r<25; r++) {
+		m_fullRowLeftRectItem[r] = new QGraphicsRectItem(0, 19+r*10, 60, 10);
+		m_fullRowLeftRectItem[r]->setPen(Qt::NoPen);
+		m_fullRowLeftRectItem[r]->setBrush(QBrush(QColor(0, 0, 0)));
+		addItem(m_fullRowLeftRectItem[r]);
+		m_fullRowRightRectItem[r] = new QGraphicsRectItem(540, 19+r*10, 60, 10);
+		m_fullRowRightRectItem[r]->setPen(Qt::NoPen);
+		m_fullRowRightRectItem[r]->setBrush(QBrush(QColor(0, 0, 0)));
+		addItem(m_fullRowRightRectItem[r]);
+	}
+
+	// Main text widget
+	m_levelOneProxyWidget = addWidget(levelOneWidget);
+	m_levelOneProxyWidget->setPos(60, 19);
+	m_levelOneProxyWidget->setAutoFillBackground(false);
+	m_levelOneProxyWidget->setFocus();
+
+	// Selection
+	m_selectionRectItem = new QGraphicsRectItem(0, 0, 12, 10);
+	m_selectionRectItem->setVisible(false);
+	m_selectionRectItem->setPen(QPen(QColor(192, 192, 192), 1, Qt::DashLine));
+	m_selectionRectItem->setBrush(QBrush(QColor(255, 255, 255, 64)));
+	addItem(m_selectionRectItem);
+
+	// Cursor
+	m_cursorRectItem = new QGraphicsRectItem(0, 0, 12, 10);
+	m_cursorRectItem->setPen(Qt::NoPen);
+	m_cursorRectItem->setBrush(QBrush(QColor(128, 128, 128, 192)));
+	addItem(m_cursorRectItem);
+
+	// Optional grid overlay for text widget
+	m_mainGridItemGroup = new QGraphicsItemGroup;
+	m_mainGridItemGroup->setVisible(false);
+	addItem(m_mainGridItemGroup);
+	// Additional vertical pieces of grid for side panels
+	for (int i=0; i<32; i++) {
+		m_sidePanelGridNeeded[i] = false;
+		m_sidePanelGridItemGroup[i] = new QGraphicsItemGroup;
+		m_sidePanelGridItemGroup[i]->setVisible(false);
+		addItem(m_sidePanelGridItemGroup[i]);
+	}
+	for (int r=1; r<25; r++) {
+		for (int c=0; c<40; c++) {
+			QGraphicsRectItem *gridPiece = new QGraphicsRectItem(c*12, r*10, 12, 10);
+			gridPiece->setPen(QPen(QBrush(QColor(128, 128, 128, r<24 ? 192 : 128)), 0));
+			m_mainGridItemGroup->addToGroup(gridPiece);
+		}
+
+		if (r < 24)
+			for (int c=0; c<32; c++) {
+				QGraphicsRectItem *gridPiece = new QGraphicsRectItem(0, r*10, 12, 10);
+				gridPiece->setPen(QPen(QBrush(QColor(128, 128, 128, 64)), 0));
+				m_sidePanelGridItemGroup[c]->addToGroup(gridPiece);
+			}
+	}
+
+	installEventFilter(this);
+}
+
+void LevelOneScene::setBorderDimensions(int sceneWidth, int sceneHeight, int widgetWidth, int leftSidePanelColumns, int rightSidePanelColumns)
+{
+	setSceneRect(0, 0, sceneWidth, sceneHeight);
+
+	// Assume text widget height is always 250
+	int topBottomBorders = (sceneHeight-250) / 2;
+	// Ideally we'd use m_levelOneProxyWidget->size() to discover the widget width ourselves
+	// but this causes a stubborn segfault, so we have to receive the widgetWidth as a parameter
+	int leftRightBorders = (sceneWidth-widgetWidth) / 2;
+
+	m_levelOneProxyWidget->setPos(leftRightBorders, topBottomBorders);
+
+	// Position grid to cover central 40 columns
+	m_mainGridItemGroup->setPos(leftRightBorders + leftSidePanelColumns*12, topBottomBorders);
+
+	updateCursor();
+	updateSelection();
+
+	// Grid for right side panel
+	for (int c=0; c<16; c++)
+		if (rightSidePanelColumns > c) {
+			m_sidePanelGridItemGroup[c]->setPos(leftRightBorders + leftSidePanelColumns*12 + 480 + c*12, topBottomBorders);
+			m_sidePanelGridItemGroup[c]->setVisible(m_grid);
+			m_sidePanelGridNeeded[c] = true;
+		} else {
+			m_sidePanelGridItemGroup[c]->setVisible(false);
+			m_sidePanelGridNeeded[c] = false;
+		}
+	// Grid for left side panel
+	for (int c=0; c<16; c++)
+		if (c < leftSidePanelColumns) {
+			m_sidePanelGridItemGroup[31-c]->setPos(leftRightBorders + (leftSidePanelColumns-c-1)*12, topBottomBorders);
+			m_sidePanelGridItemGroup[31-c]->setVisible(m_grid);
+			m_sidePanelGridNeeded[31-c] = true;
+		} else {
+			m_sidePanelGridItemGroup[31-c]->setVisible(false);
+			m_sidePanelGridNeeded[31-c] = false;
+		}
+
+	// Full screen colours
+	m_fullScreenTopRectItem->setRect(0, 0, sceneWidth, topBottomBorders);
+	m_fullScreenBottomRectItem->setRect(0, 250+topBottomBorders, sceneWidth, topBottomBorders);
+	// Full row colours
+	for (int r=0; r<25; r++) {
+		m_fullRowLeftRectItem[r]->setRect(0, topBottomBorders+r*10, leftRightBorders+1, 10);
+		m_fullRowRightRectItem[r]->setRect(sceneWidth-leftRightBorders-1, topBottomBorders+r*10, leftRightBorders+1, 10);
+	}
+}
+
+void LevelOneScene::updateCursor()
+{
+	m_cursorRectItem->setPos(m_mainGridItemGroup->pos().x() + static_cast<TeletextWidget *>(m_levelOneProxyWidget->widget())->document()->cursorColumn()*12, m_mainGridItemGroup->pos().y() + static_cast<TeletextWidget *>(m_levelOneProxyWidget->widget())->document()->cursorRow()*10);
+}
+
+void LevelOneScene::updateSelection()
+{
+	if (!static_cast<TeletextWidget *>(m_levelOneProxyWidget->widget())->document()->selectionActive()) {
+		m_selectionRectItem->setVisible(false);
+		return;
+	}
+
+	m_selectionRectItem->setRect(m_mainGridItemGroup->pos().x() + static_cast<TeletextWidget *>(m_levelOneProxyWidget->widget())->document()->selectionLeftColumn()*12, m_mainGridItemGroup->pos().y() + static_cast<TeletextWidget *>(m_levelOneProxyWidget->widget())->document()->selectionTopRow()*10, static_cast<TeletextWidget *>(m_levelOneProxyWidget->widget())->document()->selectionWidth()*12-1, static_cast<TeletextWidget *>(m_levelOneProxyWidget->widget())->document()->selectionHeight()*10-1);
+
+	m_selectionRectItem->setVisible(true);
+}
+
+void LevelOneScene::setRenderMode(TeletextPageRender::RenderMode renderMode)
+{
+	static_cast<TeletextWidget *>(m_levelOneProxyWidget->widget())->setRenderMode(renderMode);
+
+	QColor fullColour;
+
+	switch (renderMode) {
+		case TeletextPageRender::RenderNormal:
+			setFullScreenColour(static_cast<TeletextWidget *>(m_levelOneProxyWidget->widget())->pageDecode()->fullScreenQColor());
+			for (int r=0; r<25; r++)
+				setFullRowColour(r, static_cast<TeletextWidget *>(m_levelOneProxyWidget->widget())->pageDecode()->fullRowQColor(r));
+			return;
+		case TeletextPageRender::RenderMix:
+			fullColour = Qt::transparent;
+			break;
+		case TeletextPageRender::RenderWhiteOnBlack:
+			fullColour = Qt::black;
+			break;
+		case TeletextPageRender::RenderBlackOnWhite:
+			fullColour = Qt::white;
+			break;
+	}
+
+	m_fullScreenTopRectItem->setBrush(fullColour);
+	m_fullScreenBottomRectItem->setBrush(fullColour);
+	for (int r=0; r<25; r++) {
+		m_fullRowLeftRectItem[r]->setBrush(fullColour);
+		m_fullRowRightRectItem[r]->setBrush(fullColour);
+	}
+}
+
+void LevelOneScene::toggleGrid(bool gridOn)
+{
+	m_grid = gridOn;
+	m_mainGridItemGroup->setVisible(gridOn);
+	for (int i=0; i<32; i++)
+		if (m_sidePanelGridNeeded[i])
+			m_sidePanelGridItemGroup[i]->setVisible(gridOn);
+}
+
+void LevelOneScene::hideGUIElements(bool hidden)
+{
+	if (hidden) {
+		m_cursorRectItem->setVisible(false);
+		m_selectionRectItem->setVisible(false);
+	} else {
+		if (static_cast<TeletextWidget *>(m_levelOneProxyWidget->widget())->document()->selectionActive())
+			m_selectionRectItem->setVisible(true);
+
+		m_cursorRectItem->setVisible(true);
+	}
+}
+
+// Implements Ctrl+mousewheel zoom
+bool LevelOneScene::eventFilter(QObject *object, QEvent *event)
+{
+	Q_UNUSED(object);
+
+	if (event->type() == QEvent::GraphicsSceneWheel && static_cast<QGraphicsSceneWheelEvent *>(event)->modifiers() == Qt::ControlModifier) {
+		if (static_cast<QGraphicsSceneWheelEvent *>(event)->delta() > 0)
+			emit mouseZoomIn();
+		else if (static_cast<QGraphicsSceneWheelEvent *>(event)->delta() < 0)
+			emit mouseZoomOut();
+
+		event->accept();
+		return true;
+	}
+	return false;
+}
+
+// Clicking outside the main text widget but still within the scene would
+// cause keyboard focus loss.
+// So on every keypress within the scene, wrench the focus back to the widget
+// if necessary.
+void LevelOneScene::keyPressEvent(QKeyEvent *keyEvent)
+{
+	if (focusItem() != m_levelOneProxyWidget)
+		setFocusItem(m_levelOneProxyWidget);
+
+	QGraphicsScene::keyPressEvent(keyEvent);
+}
+
+void LevelOneScene::keyReleaseEvent(QKeyEvent *keyEvent)
+{
+	if (focusItem() != m_levelOneProxyWidget)
+		setFocusItem(m_levelOneProxyWidget);
+
+	QGraphicsScene::keyReleaseEvent(keyEvent);
+}
+
+void LevelOneScene::setFullScreenColour(const QColor &newColor)
+{
+	if (static_cast<TeletextWidget *>(m_levelOneProxyWidget->widget())->pageRender()->renderMode() == TeletextPageRender::RenderNormal) {
+		m_fullScreenTopRectItem->setBrush(newColor);
+		m_fullScreenBottomRectItem->setBrush(newColor);
+	}
+}
+
+void LevelOneScene::setFullRowColour(int row, const QColor &newColor)
+{
+	if (static_cast<TeletextWidget *>(m_levelOneProxyWidget->widget())->pageRender()->renderMode() == TeletextPageRender::RenderNormal) {
+		m_fullRowLeftRectItem[row]->setBrush(newColor);
+		m_fullRowRightRectItem[row]->setBrush(newColor);
+	}
+}

src/qteletextmaker/mainwidget.h

@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2020, 2021 Gavin MacGregor
+ * Copyright (C) 2020-2024 Gavin MacGregor
  *
  * This file is part of QTeletextMaker.
  *
@@ -22,12 +22,14 @@
 
 #include <QBasicTimer>
 #include <QFrame>
+#include <QGraphicsItemGroup>
 #include <QGraphicsProxyWidget>
 #include <QGraphicsScene>
 #include <QPair>
 #include <QTextStream>
 #include <vector>
 
+#include "decode.h"
 #include "document.h"
 #include "levelonepage.h"
 #include "render.h"
@@ -41,16 +43,18 @@ class TeletextWidget : public QFrame
 public:
 	TeletextWidget(QFrame *parent = 0);
 	~TeletextWidget();
-	void setCharacter(unsigned char);
-	void toggleCharacterBit(unsigned char);
+	void setCharacter(unsigned char newCharacter);
+	void toggleCharacterBit(unsigned char bitToToggle);
 	bool insertMode() const { return m_insertMode; };
-	void setInsertMode(bool);
+	void setInsertMode(bool insertMode);
+	bool showControlCodes() const { return m_pageRender.showControlCodes(); };
 
-	QSize sizeHint() { return QSize(480+(pageRender()->leftSidePanelColumns()+pageRender()->rightSidePanelColumns())*12, 250); }
+	QSize sizeHint() { return QSize(480+(pageDecode()->leftSidePanelColumns()+pageDecode()->rightSidePanelColumns())*12, 250); }
 
-	void inputMethodEvent(QInputMethodEvent *);
+	void inputMethodEvent(QInputMethodEvent *event);
 
 	TeletextDocument* document() const { return m_teletextDocument; }
+	TeletextPageDecode *pageDecode() { return &m_pageDecode; }
 	TeletextPageRender *pageRender() { return &m_pageRender; }
 
 signals:
@@ -60,21 +64,22 @@ signals:
 public slots:
 	void subPageSelected();
 	void refreshPage();
-	void toggleReveal(bool);
-	void toggleMix(bool);
-	void toggleGrid(bool);
-	void updateFlashTimer(int);
-	void refreshRow(int);
+	void setReveal(bool reveal);
+	void setShowControlCodes(bool showControlCodes);
+	void setRenderMode(TeletextPageRender::RenderMode renderMode);
+	void updateFlashTimer(int newFlashTimer);
+	void pauseFlash(bool pauseNow);
+
+	void setControlBit(int bitNumber, bool active);
+	void setDefaultCharSet(int newDefaultCharSet);
+	void setDefaultNOS(int newDefaultNOS);
+	void setSidePanelWidths(int newLeftSidePanelColumns, int newRightSidePanelColumns);
+	void setSidePanelAtL35Only(bool newSidePanelAtL35Only);
+
+	void cut();
+	void copy();
+	void paste();
 
-	void setControlBit(int, bool);
-	void setDefaultCharSet(int);
-	void setDefaultNOS(int);
-	void setDefaultScreenColour(int);
-	void setDefaultRowColour(int);
-	void setColourTableRemap(int);
-	void setBlackBackgroundSubst(bool);
-	void setSidePanelWidths(int, int);
-	void setSidePanelAtL35Only(bool);
 	void changeSize();
 
 protected:
@@ -86,20 +91,21 @@ protected:
 	void focusInEvent(QFocusEvent *event) override;
 	void focusOutEvent(QFocusEvent *event) override;
 
+	TeletextPageDecode m_pageDecode;
 	TeletextPageRender m_pageRender;
 
 private:
 	TeletextDocument* m_teletextDocument;
 	LevelOnePage* m_levelOnePage;
-	bool m_insertMode, m_grid, m_selectionInProgress;
+	bool m_insertMode, m_selectionInProgress;
 	QBasicTimer m_flashTimer;
 	int m_flashTiming, m_flashPhase;
 
 	void timerEvent(QTimerEvent *event) override;
+	void shiftMosaics(int key);
+	void selectionToClipboard();
 
-	void calculateDimensions();
-
-	QPair<int, int> mouseToRowAndColumn(const QPoint &);
+	QPair<int, int> mouseToRowAndColumn(const QPoint &mousePosition);
 };
 
 class LevelOneScene : public QGraphicsScene
@@ -107,17 +113,35 @@ class LevelOneScene : public QGraphicsScene
 	Q_OBJECT
 
 public:
-	LevelOneScene(QWidget *, QObject *parent = nullptr);
-	void setDimensions(int, int, int);
+	LevelOneScene(QWidget *levelOneWidget, QObject *parent = nullptr);
+	void setBorderDimensions(int sceneWidth, int sceneHeight, int widgetWidth, int leftSidePanelColumns, int rightSidePanelColumns);
+	QGraphicsRectItem *cursorRectItem() const { return m_cursorRectItem; }
 
 public slots:
-	void setFullScreenColour(const QColor &);
-	void setFullRowColour(int, const QColor &);
+	void updateCursor();
+	void updateSelection();
+	void setRenderMode(TeletextPageRender::RenderMode renderMode);
+	void toggleGrid(bool gridOn);
+	void hideGUIElements(bool hidden);
+	void setFullScreenColour(const QColor &newColor);
+	void setFullRowColour(int row, const QColor &newColor);
+
+signals:
+	void mouseZoomIn();
+	void mouseZoomOut();
+
+protected:
+	bool eventFilter(QObject *object, QEvent *event);
+	void keyPressEvent(QKeyEvent *event);
+	void keyReleaseEvent(QKeyEvent *keyEvent);
 
 private:
 	QGraphicsRectItem *m_fullScreenTopRectItem, *m_fullScreenBottomRectItem;
 	QGraphicsRectItem *m_fullRowLeftRectItem[25], *m_fullRowRightRectItem[25];
 	QGraphicsProxyWidget *m_levelOneProxyWidget;
+	QGraphicsRectItem *m_cursorRectItem, *m_selectionRectItem;
+	QGraphicsItemGroup *m_mainGridItemGroup, *m_sidePanelGridItemGroup[32];
+	bool m_grid, m_sidePanelGridNeeded[32];
 };
 
 #endif

src/qteletextmaker/mainwindow.cpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2020, 2021 Gavin MacGregor
+ * Copyright (C) 2020-2024 Gavin MacGregor
  *
  * This file is part of QTeletextMaker.
  *
@@ -17,18 +17,23 @@
  * along with QTeletextMaker.  If not, see <https://www.gnu.org/licenses/>.
  */
 
+#include <QActionGroup>
 #include <QApplication>
 #include <QDesktopServices>
 #include <QFileDialog>
+#include <QImage>
 #include <QList>
 #include <QMenuBar>
 #include <QMessageBox>
+#include <QPainter>
 #include <QPushButton>
 #include <QRadioButton>
+#include <QRegularExpression>
 #include <QSaveFile>
 #include <QScreen>
 #include <QSettings>
 #include <QShortcut>
+#include <QSlider>
 #include <QStatusBar>
 #include <QToolBar>
 #include <QToolButton>
@@ -39,6 +44,7 @@
 #include "levelonecommands.h"
 #include "loadsave.h"
 #include "mainwidget.h"
+#include "pagecomposelinksdockwidget.h"
 #include "pageenhancementsdockwidget.h"
 #include "pageoptionsdockwidget.h"
 #include "palettedockwidget.h"
@@ -106,20 +112,118 @@ void MainWindow::openFile(const QString &fileName)
 	other->show();
 }
 
+static inline bool hasTTISuffix(const QString &filename)
+{
+	return filename.endsWith(".tti", Qt::CaseInsensitive) || filename.endsWith(".ttix", Qt::CaseInsensitive);
+}
+
+static inline void changeSuffixFromTTI(QString &filename, const QString &newSuffix)
+{
+	if (filename.endsWith(".tti", Qt::CaseInsensitive)) {
+		filename.chop(4);
+		filename.append("." + newSuffix);
+	} else if (filename.endsWith(".ttix", Qt::CaseInsensitive)) {
+		filename.chop(5);
+		filename.append("." + newSuffix);
+	}
+}
+
 bool MainWindow::save()
 {
-	return m_isUntitled ? saveAs() : saveFile(m_curFile);
+	// If imported from non-.tti, force "Save As" so we don't clobber the original imported file
+	return m_isUntitled || !hasTTISuffix(m_curFile) ? saveAs() : saveFile(m_curFile);
 }
 
 bool MainWindow::saveAs()
 {
-	QString fileName = QFileDialog::getSaveFileName(this, tr("Save As"), m_curFile);
+	QString suggestedName = m_curFile;
+
+	// If imported from non-.tti, change extension so we don't clobber the original imported file
+	if (suggestedName.endsWith(".t42", Qt::CaseInsensitive)) {
+		suggestedName.chop(4);
+		suggestedName.append(".tti");
+	}
+
+	QString fileName = QFileDialog::getSaveFileName(this, tr("Save As"), suggestedName, "TTI teletext page (*.tti *.ttix)");
 	if (fileName.isEmpty())
 		return false;
 
 	return saveFile(fileName);
 }
 
+void MainWindow::reload()
+{
+	if (m_isUntitled)
+		return;
+
+	if (!m_textWidget->document()->undoStack()->isClean()) {
+		const QMessageBox::StandardButton ret = QMessageBox::warning(this, QApplication::applicationDisplayName(), tr("The document \"%1\" has been modified.\nDo you want to discard your changes?").arg(QFileInfo(m_curFile).fileName()), QMessageBox::Discard | QMessageBox::Cancel);
+
+		if (ret != QMessageBox::Discard)
+			return;
+	} else {
+		const QMessageBox::StandardButton ret = QMessageBox::warning(this, QApplication::applicationDisplayName(), tr("Do you want to reload the document \"%1\" from disk?").arg(QFileInfo(m_curFile).fileName()), QMessageBox::Yes | QMessageBox::No);
+
+		if (ret != QMessageBox::Yes)
+			return;
+	}
+
+	int subPageIndex = m_textWidget->document()->currentSubPageIndex();
+
+	m_textWidget->document()->clear();
+	loadFile(m_curFile);
+
+	if (subPageIndex >= m_textWidget->document()->numberOfSubPages())
+		subPageIndex = m_textWidget->document()->numberOfSubPages()-1;
+
+	m_textWidget->document()->selectSubPageIndex(subPageIndex, true);
+}
+
+void MainWindow::exportPNG()
+{
+	QString exportFileName = QFileDialog::getSaveFileName(this, tr("Export PNG"), QString(), "PNG image (*.png)");
+	if (exportFileName.isEmpty())
+		return;
+
+	// Prepare widget image for extraction
+	m_textWidget->pauseFlash(true);
+	m_textScene->hideGUIElements(true);
+	// Disable exporting in Mix mode as it corrupts the background
+	bool reMix = m_textWidget->pageRender()->renderMode() == TeletextPageRender::RenderMix;
+	if (reMix)
+		m_textScene->setRenderMode(TeletextPageRender::RenderNormal);
+
+	// Extract the image from the scene
+	QImage interImage = QImage(m_textScene->sceneRect().size().toSize(), QImage::Format_RGB32);
+//	This ought to make the background transparent in Mix mode, but it doesn't
+//	if (m_textWidget->pageDecode()->mix())
+//		interImage.fill(QColor(0, 0, 0, 0));
+	QPainter interPainter(&interImage);
+	m_textScene->render(&interPainter);
+
+	// Now we've extracted the image we can put the GUI things back
+	m_textScene->hideGUIElements(false);
+	if (reMix)
+		m_textScene->setRenderMode(TeletextPageRender::RenderMix);
+	m_textWidget->pauseFlash(false);
+
+	// Now scale the extracted image to the selected aspect ratio
+	// We do this in two steps so that anti-aliasing only occurs on vertical lines
+
+	// Double the vertical height first
+	const QImage doubleHeightImage = interImage.scaled(interImage.width(), interImage.height()*2, Qt::IgnoreAspectRatio, Qt::FastTransformation);
+
+	// If aspect ratio is Pixel 1:2 we're already at the correct scale
+	if (m_viewAspectRatio != 3) {
+		// Scale it horizontally to the selected aspect ratio
+		const QImage scaledImage = doubleHeightImage.scaled((int)((float)doubleHeightImage.width() * aspectRatioHorizontalScaling[m_viewAspectRatio] * 2), doubleHeightImage.height(), Qt::IgnoreAspectRatio, Qt::SmoothTransformation);
+
+		if (!scaledImage.save(exportFileName, "PNG"))
+			QMessageBox::warning(this, QApplication::applicationDisplayName(), tr("Cannot export file %1.").arg(QDir::toNativeSeparators(exportFileName)));
+	} else if (!doubleHeightImage.save(exportFileName, "PNG"))
+		QMessageBox::warning(this, QApplication::applicationDisplayName(), tr("Cannot export file %1.").arg(QDir::toNativeSeparators(exportFileName)));
+}
+
 void MainWindow::exportZXNet()
 {
 	QDesktopServices::openUrl(QUrl("http://zxnet.co.uk/teletext/editor/" + exportHashStringPage(m_textWidget->document()->currentSubPage()) + exportHashStringPackets(m_textWidget->document()->currentSubPage())));
@@ -132,12 +236,12 @@ void MainWindow::exportEditTF()
 
 void MainWindow::about()
 {
-	QMessageBox::about(this, tr("About QTeletextMaker"), tr("<b>QTeletextMaker</b><br>"
+	QMessageBox::about(this, tr("About"), QString("<b>%1</b><br>"
 	"An open source Level 2.5 teletext page editor.<br>"
-	"<i>Version 0.1-alpha</i><br><br>"
-	"Copyright (C) 2020, 2021 Gavin MacGregor<br><br>"
+	"<i>Version %2</i><br><br>"
+	"Copyright (C) 2020-2024 Gavin MacGregor<br><br>"
 	"Released under the GNU General Public License version 3<br>"
-	"<a href=\"https://github.com/gkthemac/qteletextmaker\">https://github.com/gkthemac/qteletextmaker</a>"));
+	"<a href=\"https://github.com/gkthemac/qteletextmaker\">https://github.com/gkthemac/qteletextmaker</a>").arg(QApplication::applicationDisplayName()).arg(QApplication::applicationVersion()));
 }
 
 void MainWindow::init()
@@ -156,36 +260,46 @@ void MainWindow::init()
 	addDockWidget(Qt::RightDockWidgetArea, m_x26DockWidget);
 	m_paletteDockWidget = new PaletteDockWidget(m_textWidget);
 	addDockWidget(Qt::RightDockWidgetArea, m_paletteDockWidget);
+	m_pageComposeLinksDockWidget = new PageComposeLinksDockWidget(m_textWidget);
+	addDockWidget(Qt::RightDockWidgetArea, m_pageComposeLinksDockWidget);
+
+	m_textScene = new LevelOneScene(m_textWidget, this);
 
 	createActions();
 	createStatusBar();
 
 	readSettings();
 
-	m_textScene = new LevelOneScene(m_textWidget, this);
-
 	m_textView = new QGraphicsView(this);
 	m_textView->setScene(m_textScene);
-	m_textView->setRenderHints(QPainter::SmoothPixmapTransform);
+	if (m_viewSmoothTransform)
+		m_textView->setRenderHints(QPainter::SmoothPixmapTransform);
 	m_textView->setBackgroundBrush(QBrush(QColor(32, 48, 96)));
-	setSceneDimensions();
+	m_zoomSlider->setValue(m_viewZoom);
 	setCentralWidget(m_textView);
 
 	connect(m_textWidget->document(), &TeletextDocument::cursorMoved, this, &MainWindow::updateCursorPosition);
+	connect(m_textWidget->document(), &TeletextDocument::selectionMoved, m_textScene, &LevelOneScene::updateSelection);
 	connect(m_textWidget->document()->undoStack(), &QUndoStack::cleanChanged, this, [=]() { setWindowModified(!m_textWidget->document()->undoStack()->isClean()); } );
 	connect(m_textWidget->document(), &TeletextDocument::aboutToChangeSubPage, m_x26DockWidget, &X26DockWidget::unloadX26List);
 	connect(m_textWidget->document(), &TeletextDocument::subPageSelected, this, &MainWindow::updatePageWidgets);
+	connect(m_textWidget->document(), &TeletextDocument::pageOptionsChanged, this, &MainWindow::updatePageWidgets);
 	connect(m_textWidget, &TeletextWidget::sizeChanged, this, &MainWindow::setSceneDimensions);
-	connect(m_textWidget->pageRender(), &TeletextPageRender::fullScreenColourChanged, m_textScene, &LevelOneScene::setFullScreenColour);
-	connect(m_textWidget->pageRender(), &TeletextPageRender::fullRowColourChanged, m_textScene, &LevelOneScene::setFullRowColour);
+	connect(m_textWidget->pageDecode(), &TeletextPageDecode::fullScreenColourChanged, m_textScene, &LevelOneScene::setFullScreenColour);
+	connect(m_textWidget->pageDecode(), &TeletextPageDecode::fullRowColourChanged, m_textScene, &LevelOneScene::setFullRowColour);
 	connect(m_textWidget, &TeletextWidget::insertKeyPressed, this, &MainWindow::toggleInsertMode);
 
+	connect(m_textScene, &LevelOneScene::mouseZoomIn, this, &MainWindow::zoomIn);
+	connect(m_textScene, &LevelOneScene::mouseZoomOut, this, &MainWindow::zoomOut);
+
 	QShortcut *blockShortCut = new QShortcut(QKeySequence(Qt::Key_Escape, Qt::Key_J), m_textView);
 	connect(blockShortCut, &QShortcut::activated, [=]() { m_textWidget->setCharacter(0x7f); });
 
 	setUnifiedTitleAndToolBarOnMac(true);
 
 	updatePageWidgets();
+
+	m_textView->setFocus();
 }
 
 void MainWindow::tile(const QMainWindow *previous)
@@ -236,6 +350,11 @@ void MainWindow::createActions()
 	saveAsAct->setShortcuts(QKeySequence::SaveAs);
 	saveAsAct->setStatusTip(tr("Save the document under a new name"));
 
+	const QIcon reloadIcon = QIcon::fromTheme("document-revert");
+	QAction *reloadAct = fileMenu->addAction(reloadIcon, tr("Reload"), this, &MainWindow::reload);
+	reloadAct->setShortcut(QKeySequence(Qt::Key_F5));
+	reloadAct->setStatusTip(tr("Reload the document from disk"));
+
 	fileMenu->addSeparator();
 
 	QMenu *recentMenu = fileMenu->addMenu(tr("Recent"));
@@ -251,16 +370,35 @@ void MainWindow::createActions()
 
 	setRecentFilesVisible(MainWindow::hasRecentFiles());
 
-	QMenu *exportHashStringSubMenu = fileMenu->addMenu(tr("Export to online editor"));
+	m_exportAutoAct = fileMenu->addAction(tr("Export subpage..."));
+	m_exportAutoAct->setEnabled(false);
+	m_exportAutoAct->setShortcut(tr("Ctrl+E"));
+	m_exportAutoAct->setStatusTip("Export this subpage back to the imported file");
+	connect(fileMenu, &QMenu::aboutToShow, this, &MainWindow::updateExportAutoAction);
+	connect(m_exportAutoAct, &QAction::triggered, this, &MainWindow::exportAuto);
+
+	QAction *exportT42Act = fileMenu->addAction(tr("Export subpage as t42..."));
+	exportT42Act->setStatusTip("Export this subpage as a t42 file");
+	connect(exportT42Act, &QAction::triggered, this, [=]() { exportT42(false); });
+
+	QMenu *exportHashStringSubMenu = fileMenu->addMenu(tr("Export subpage to online editor"));
 
 	QAction *exportZXNetAct = exportHashStringSubMenu->addAction(tr("Open in zxnet.co.uk"));
-	exportZXNetAct->setStatusTip("Export and open page in zxnet.co.uk online editor");
+	exportZXNetAct->setStatusTip("Export and open this subpage in the zxnet.co.uk online editor");
 	connect(exportZXNetAct, &QAction::triggered, this, &MainWindow::exportZXNet);
 
 	QAction *exportEditTFAct = exportHashStringSubMenu->addAction(tr("Open in edit.tf"));
-	exportEditTFAct->setStatusTip("Export and open page in edit.tf online editor");
+	exportEditTFAct->setStatusTip("Export and open this subpage in the edit.tf online editor");
 	connect(exportEditTFAct, &QAction::triggered, this, &MainWindow::exportEditTF);
 
+	QAction *exportPNGAct = fileMenu->addAction(tr("Export subpage as PNG..."));
+	exportPNGAct->setStatusTip("Export a PNG image of this subpage");
+	connect(exportPNGAct, &QAction::triggered, this, &MainWindow::exportPNG);
+
+	QAction *exportM29Act = fileMenu->addAction(tr("Export subpage X/28 as M/29..."));
+	exportM29Act->setStatusTip("Export this subpage's X/28 packets as a tti file with M/29 packets");
+	connect(exportM29Act, &QAction::triggered, this, &MainWindow::exportM29);
+
 	fileMenu->addSeparator();
 
 	QAction *closeAct = fileMenu->addAction(tr("&Close"), this, &QWidget::close);
@@ -291,50 +429,47 @@ void MainWindow::createActions()
 	redoAction->setShortcuts(QKeySequence::Redo);
 
 	editMenu->addSeparator();
+
 #ifndef QT_NO_CLIPBOARD
-/*	const QIcon cutIcon = QIcon::fromTheme("edit-cut", QIcon(":/images/cut.png"));
+	const QIcon cutIcon = QIcon::fromTheme("edit-cut", QIcon(":/images/cut.png"));
 	QAction *cutAct = new QAction(cutIcon, tr("Cu&t"), this);
 	cutAct->setShortcuts(QKeySequence::Cut);
-	cutAct->setStatusTip(tr("Cut the current selection's contents to the "
-                            "clipboard"));
-	connect(cutAct, &QAction::triggered, textWidget, &QTextEdit::cut);
+	cutAct->setStatusTip(tr("Cut the current selection's contents to the clipboard"));
+	connect(cutAct, &QAction::triggered, m_textWidget, &TeletextWidget::cut);
 	editMenu->addAction(cutAct);
 	editToolBar->addAction(cutAct);
 
 	const QIcon copyIcon = QIcon::fromTheme("edit-copy", QIcon(":/images/copy.png"));
 	QAction *copyAct = new QAction(copyIcon, tr("&Copy"), this);
 	copyAct->setShortcuts(QKeySequence::Copy);
-	copyAct->setStatusTip(tr("Copy the current selection's contents to the "
-                             "clipboard"));
-	connect(copyAct, &QAction::triggered, textWidget, &QTextEdit::copy);
+	copyAct->setStatusTip(tr("Copy the current selection's contents to the clipboard"));
+	connect(copyAct, &QAction::triggered, m_textWidget, &TeletextWidget::copy);
 	editMenu->addAction(copyAct);
 	editToolBar->addAction(copyAct);
 
 	const QIcon pasteIcon = QIcon::fromTheme("edit-paste", QIcon(":/images/paste.png"));
 	QAction *pasteAct = new QAction(pasteIcon, tr("&Paste"), this);
 	pasteAct->setShortcuts(QKeySequence::Paste);
-	pasteAct->setStatusTip(tr("Paste the clipboard's contents into the current "
-                              "selection"));
-	connect(pasteAct, &QAction::triggered, textWidget, &QTextEdit::paste);
+	pasteAct->setStatusTip(tr("Paste the clipboard's contents into the current selection"));
+	connect(pasteAct, &QAction::triggered, m_textWidget, &TeletextWidget::paste);
 	editMenu->addAction(pasteAct);
 	editToolBar->addAction(pasteAct);
 
 	editMenu->addSeparator();
-*/
 #endif // !QT_NO_CLIPBOARD
 
 	QAction *insertBlankRowAct = editMenu->addAction(tr("Insert blank row"));
-	insertBlankRowAct->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_I));
+	insertBlankRowAct->setShortcut(QKeySequence(Qt::CTRL | Qt::Key_I));
 	insertBlankRowAct->setStatusTip(tr("Insert a blank row at the cursor position"));
 	connect(insertBlankRowAct, &QAction::triggered, [=]() { insertRow(false); } );
 
 	QAction *insertCopyRowAct = editMenu->addAction(tr("Insert copy row"));
-	insertCopyRowAct->setShortcut(QKeySequence(Qt::CTRL + Qt::SHIFT + Qt::Key_I));
+	insertCopyRowAct->setShortcut(QKeySequence(Qt::CTRL | Qt::SHIFT | Qt::Key_I));
 	insertCopyRowAct->setStatusTip(tr("Insert a row that's a copy of the row at the cursor position"));
 	connect(insertCopyRowAct, &QAction::triggered, [=]() { insertRow(true); } );
 
 	QAction *deleteRowAct = editMenu->addAction(tr("Delete row"));
-	deleteRowAct->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_D));
+	deleteRowAct->setShortcut(QKeySequence(Qt::CTRL | Qt::Key_D));
 	deleteRowAct->setStatusTip(tr("Delete the row at the cursor position"));
 	connect(deleteRowAct, &QAction::triggered, this, &MainWindow::deleteRow);
 
@@ -360,30 +495,35 @@ void MainWindow::createActions()
 
 	QAction *revealAct = viewMenu->addAction(tr("&Reveal"));
 	revealAct->setCheckable(true);
-	revealAct->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_R));
+	revealAct->setShortcut(QKeySequence(Qt::CTRL | Qt::Key_R));
 	revealAct->setStatusTip(tr("Toggle reveal"));
-	connect(revealAct, &QAction::toggled, m_textWidget, &TeletextWidget::toggleReveal);
-
-	QAction *mixAct = viewMenu->addAction(tr("&Mix"));
-	mixAct->setCheckable(true);
-	mixAct->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_M));
-	mixAct->setStatusTip(tr("Toggle mix"));
-	connect(mixAct, &QAction::toggled, m_textWidget, &TeletextWidget::toggleMix);
+	connect(revealAct, &QAction::toggled, m_textWidget, &TeletextWidget::setReveal);
 
 	QAction *gridAct = viewMenu->addAction(tr("&Grid"));
 	gridAct->setCheckable(true);
-	gridAct->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_G));
+	gridAct->setShortcut(QKeySequence(Qt::CTRL | Qt::Key_G));
 	gridAct->setStatusTip(tr("Toggle the text grid"));
-	connect(gridAct, &QAction::toggled, m_textWidget, &TeletextWidget::toggleGrid);
+	connect(gridAct, &QAction::toggled, m_textScene, &LevelOneScene::toggleGrid);
 
-	QAction *showCodesAct = viewMenu->addAction(tr("Show codes"));
-	showCodesAct->setCheckable(true);
-	showCodesAct->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_T));
-	showCodesAct->setStatusTip(tr("Toggle showing of control codes"));
-	connect(showCodesAct, &QAction::toggled, m_textWidget->pageRender(), &TeletextPageRender::setShowCodes);
+	QAction *showControlCodesAct = viewMenu->addAction(tr("Show control codes"));
+	showControlCodesAct->setCheckable(true);
+	showControlCodesAct->setShortcut(QKeySequence(Qt::CTRL | Qt::Key_T));
+	showControlCodesAct->setStatusTip(tr("Toggle showing of control codes"));
+	connect(showControlCodesAct, &QAction::toggled, m_textWidget, &TeletextWidget::setShowControlCodes);
 
 	viewMenu->addSeparator();
 
+	QMenu *renderModeSubMenu = viewMenu->addMenu(tr("Render mode"));
+	QAction *renderModeActs[4];
+	renderModeActs[0] = renderModeSubMenu->addAction(tr("Normal"));
+	renderModeActs[0]->setStatusTip(tr("Render page normally"));
+	renderModeActs[1] = renderModeSubMenu->addAction(tr("Mix"));
+	renderModeActs[1]->setStatusTip(tr("Render page in mix mode"));
+	renderModeActs[2] = renderModeSubMenu->addAction(tr("White on black"));
+	renderModeActs[2]->setStatusTip(tr("Render page with white foreground on black background"));
+	renderModeActs[3] = renderModeSubMenu->addAction(tr("Black on white"));
+	renderModeActs[3]->setStatusTip(tr("Render page with black foreground on white background"));
+
 	QMenu *borderSubMenu = viewMenu->addMenu(tr("Border"));
 	m_borderActs[0] = borderSubMenu->addAction(tr("None"));
 	m_borderActs[0]->setStatusTip(tr("View with no border"));
@@ -402,18 +542,33 @@ void MainWindow::createActions()
 	m_aspectRatioActs[3] = aspectRatioSubMenu->addAction(tr("Pixel 1:2"));
 	m_aspectRatioActs[3]->setStatusTip(tr("View with 1:2 pixel mapping"));
 
+	QActionGroup *renderModeGroup = new QActionGroup(this);
 	QActionGroup *borderGroup = new QActionGroup(this);
 	QActionGroup *aspectRatioGroup = new QActionGroup(this);
 	for (int i=0; i<=3; i++) {
+		renderModeActs[i]->setCheckable(true);
+		connect(renderModeActs[i], &QAction::triggered, [=]() { m_textScene->setRenderMode(static_cast<TeletextPageRender::RenderMode>(i)); });
+		renderModeGroup->addAction(renderModeActs[i]);
+
 		m_aspectRatioActs[i]->setCheckable(true);
 		connect(m_aspectRatioActs[i], &QAction::triggered, [=]() { setAspectRatio(i); });
 		aspectRatioGroup->addAction(m_aspectRatioActs[i]);
+
 		if (i == 3)
 			break;
+
 		m_borderActs[i]->setCheckable(true);
 		connect(m_borderActs[i], &QAction::triggered, [=]() { setBorder(i); });
 		borderGroup->addAction(m_borderActs[i]);
 	}
+	renderModeActs[0]->setChecked(true);
+
+	viewMenu->addSeparator();
+
+	m_smoothTransformAction = viewMenu->addAction(tr("Smooth font scaling"));
+	m_smoothTransformAction->setCheckable(true);
+	m_smoothTransformAction->setStatusTip(tr("Toggle smooth font scaling"));
+	connect(m_smoothTransformAction, &QAction::toggled, this, &MainWindow::setSmoothTransform);
 
 	QAction *zoomInAct = viewMenu->addAction(tr("Zoom In"));
 	zoomInAct->setShortcuts(QKeySequence::ZoomIn);
@@ -426,7 +581,7 @@ void MainWindow::createActions()
 	connect(zoomOutAct, &QAction::triggered, this, &MainWindow::zoomOut);
 
 	QAction *zoomResetAct = viewMenu->addAction(tr("Reset zoom"));
-	zoomResetAct->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_0));
+	zoomResetAct->setShortcut(QKeySequence(Qt::CTRL | Qt::Key_0));
 	zoomResetAct->setStatusTip(tr("Reset zoom level"));
 	connect(zoomResetAct, &QAction::triggered, this, &MainWindow::zoomReset);
 
@@ -438,19 +593,19 @@ void MainWindow::createActions()
 		const char *colours[] = { "Black", "Red", "Green", "Yellow", "Blue", "Magenta", "Cyan", "White" };
 
 		QAction *alphaColour = alphaColourSubMenu->addAction(tr(colours[i]));
-		alphaColour->setShortcut(QKeySequence(Qt::Key_Escape, Qt::Key_0 + i));
+		alphaColour->setShortcut(QKeySequence(QString("Esc, %1").arg(i)));
 		alphaColour->setStatusTip(QString("Insert alphanumeric %1 attribute").arg(QString(colours[i]).toLower()));
 		connect(alphaColour, &QAction::triggered, [=]() { m_textWidget->setCharacter(i); });
 
 		QAction *mosaicColour = mosaicColourSubMenu->addAction(tr(colours[i]));
-		mosaicColour->setShortcut(QKeySequence(Qt::Key_Escape, Qt::SHIFT + Qt::Key_0 + i));
+		mosaicColour->setShortcut(QKeySequence(QString("Esc, Shift+%1").arg(i)));
 		mosaicColour->setStatusTip(QString("Insert mosaic %1 attribute").arg(QString(colours[i]).toLower()));
 		connect(mosaicColour, &QAction::triggered, [=]() { m_textWidget->setCharacter(i+0x10); });
 	}
 
 	QMenu *mosaicsStyleSubMenu = insertMenu->addMenu(tr("Mosaics style"));
 	QAction *mosaicsSeparatedAct = mosaicsStyleSubMenu->addAction(tr("Separated mosaics"));
-	mosaicsSeparatedAct->setShortcut(QKeySequence(Qt::Key_Escape, Qt::SHIFT + Qt::Key_S));
+	mosaicsSeparatedAct->setShortcut(QKeySequence(Qt::NoModifier | Qt::Key_Escape, Qt::SHIFT | Qt::Key_S));
 	mosaicsSeparatedAct->setStatusTip(tr("Insert separated mosaics attribute"));
 	connect(mosaicsSeparatedAct, &QAction::triggered, [=]() { m_textWidget->setCharacter(0x1a); });
 	QAction *mosaicsContiguousAct = mosaicsStyleSubMenu->addAction(tr("Contiguous mosaics"));
@@ -460,7 +615,7 @@ void MainWindow::createActions()
 
 	QMenu *mosaicsHoldSubMenu = insertMenu->addMenu(tr("Mosaics hold"));
 	QAction *mosaicsHoldAct = mosaicsHoldSubMenu->addAction(tr("Hold mosaics"));
-	mosaicsHoldAct->setShortcut(QKeySequence(Qt::Key_Escape, Qt::SHIFT + Qt::Key_H));
+	mosaicsHoldAct->setShortcut(QKeySequence(Qt::NoModifier | Qt::Key_Escape, Qt::SHIFT | Qt::Key_H));
 	mosaicsHoldAct->setStatusTip(tr("Insert hold mosaics attribute"));
 	connect(mosaicsHoldAct, &QAction::triggered, [=]() { m_textWidget->setCharacter(0x1e); });
 	QAction *mosaicsReleaseAct = mosaicsHoldSubMenu->addAction(tr("Release mosaics"));
@@ -470,7 +625,7 @@ void MainWindow::createActions()
 
 	QMenu *backgroundColourSubMenu = insertMenu->addMenu(tr("Background colour"));
 	QAction *backgroundNewAct = backgroundColourSubMenu->addAction(tr("New background"));
-	backgroundNewAct->setShortcut(QKeySequence(Qt::Key_Escape, Qt::SHIFT + Qt::Key_N));
+	backgroundNewAct->setShortcut(QKeySequence(Qt::NoModifier | Qt::Key_Escape, Qt::SHIFT | Qt::Key_N));
 	backgroundNewAct->setStatusTip(tr("Insert new background attribute"));
 	connect(backgroundNewAct, &QAction::triggered, [=]() { m_textWidget->setCharacter(0x1d); });
 	QAction *backgroundBlackAct = backgroundColourSubMenu->addAction(tr("Black background"));
@@ -484,15 +639,15 @@ void MainWindow::createActions()
 	textSizeNormalAct->setStatusTip(tr("Insert normal size attribute"));
 	connect(textSizeNormalAct, &QAction::triggered, [=]() { m_textWidget->setCharacter(0x0c); });
 	QAction *textSizeDoubleHeightAct = textSizeSubMenu->addAction(tr("Double height"));
-	textSizeDoubleHeightAct->setShortcut(QKeySequence(Qt::Key_Escape, Qt::SHIFT + Qt::Key_D));
+	textSizeDoubleHeightAct->setShortcut(QKeySequence(Qt::NoModifier | Qt::Key_Escape, Qt::SHIFT | Qt::Key_D));
 	textSizeDoubleHeightAct->setStatusTip(tr("Insert double height attribute"));
 	connect(textSizeDoubleHeightAct, &QAction::triggered, [=]() { m_textWidget->setCharacter(0x0d); });
 	QAction *textSizeDoubleWidthAct = textSizeSubMenu->addAction(tr("Double width"));
-	textSizeDoubleWidthAct->setShortcut(QKeySequence(Qt::Key_Escape, Qt::CTRL + Qt::Key_D));
+	textSizeDoubleWidthAct->setShortcut(QKeySequence(Qt::NoModifier | Qt::Key_Escape, Qt::CTRL | Qt::Key_D));
 	textSizeDoubleWidthAct->setStatusTip(tr("Insert double width attribute"));
 	connect(textSizeDoubleWidthAct, &QAction::triggered, [=]() { m_textWidget->setCharacter(0x0e); });
 	QAction *textSizeDoubleSizeAct = textSizeSubMenu->addAction(tr("Double size"));
-	textSizeDoubleSizeAct->setShortcut(QKeySequence(Qt::Key_Escape, Qt::CTRL + Qt::SHIFT + Qt::Key_D));
+	textSizeDoubleSizeAct->setShortcut(QKeySequence(Qt::NoModifier | Qt::Key_Escape, Qt::CTRL | Qt::SHIFT | Qt::Key_D));
 	textSizeDoubleSizeAct->setStatusTip(tr("Insert double size attribute"));
 	connect(textSizeDoubleSizeAct, &QAction::triggered, [=]() { m_textWidget->setCharacter(0x0f); });
 
@@ -503,7 +658,7 @@ void MainWindow::createActions()
 
 	QMenu *flashSubMenu = insertMenu->addMenu(tr("Flash"));
 	QAction *flashFlashingAct = flashSubMenu->addAction(tr("Flashing"));
-	flashFlashingAct->setShortcut(QKeySequence(Qt::Key_Escape, Qt::SHIFT + Qt::Key_F));
+	flashFlashingAct->setShortcut(QKeySequence(Qt::NoModifier | Qt::Key_Escape, Qt::SHIFT | Qt::Key_F));
 	flashFlashingAct->setStatusTip(tr("Insert flashing attribute"));
 	connect(flashFlashingAct, &QAction::triggered, [=]() { m_textWidget->setCharacter(0x08); });
 	QAction *flashSteadyAct = flashSubMenu->addAction(tr("Steady"));
@@ -513,7 +668,7 @@ void MainWindow::createActions()
 
 	QMenu *boxingSubMenu = insertMenu->addMenu(tr("Box"));
 	QAction *boxingStartAct = boxingSubMenu->addAction(tr("Start box"));
-	boxingStartAct->setShortcut(QKeySequence(Qt::Key_Escape, Qt::SHIFT + Qt::Key_X));
+	boxingStartAct->setShortcut(QKeySequence(Qt::NoModifier | Qt::Key_Escape, Qt::SHIFT | Qt::Key_X));
 	boxingStartAct->setStatusTip(tr("Insert start box attribute"));
 	connect(boxingStartAct, &QAction::triggered, [=]() { m_textWidget->setCharacter(0x0b); });
 	QAction *boxingEndAct = boxingSubMenu->addAction(tr("End box"));
@@ -522,7 +677,7 @@ void MainWindow::createActions()
 	connect(boxingEndAct, &QAction::triggered, [=]() { m_textWidget->setCharacter(0x0a); });
 
 	QAction *escSwitchAct = insertMenu->addAction(tr("ESC/switch"));
-	escSwitchAct->setShortcut(QKeySequence(Qt::Key_Escape, Qt::CTRL + Qt::Key_S));
+	escSwitchAct->setShortcut(QKeySequence(Qt::NoModifier | Qt::Key_Escape, Qt::CTRL | Qt::Key_S));
 	escSwitchAct->setStatusTip(tr("Insert ESC/switch character set attribute"));
 	connect(escSwitchAct, &QAction::triggered, [=]() { m_textWidget->setCharacter(0x1b); });
 
@@ -532,6 +687,7 @@ void MainWindow::createActions()
 	toolsMenu->addAction(m_x26DockWidget->toggleViewAction());
 	toolsMenu->addAction(m_pageEnhancementsDockWidget->toggleViewAction());
 	toolsMenu->addAction(m_paletteDockWidget->toggleViewAction());
+	toolsMenu->addAction(m_pageComposeLinksDockWidget->toggleViewAction());
 
 	//FIXME is this main menubar separator to put help menu towards the right?
 	menuBar()->addSeparator();
@@ -552,7 +708,6 @@ void MainWindow::createActions()
 
 void MainWindow::setSceneDimensions()
 {
-	const float aspectRatioHorizontalScaling[4] = { 0.6, 0.6, 0.8, 0.5 };
 	const int topBottomBorders[3] = { 0, 10, 19 };
 	const int pillarBoxSizes[3] = { 672, 720, 854 };
 	const int leftRightBorders[3] = { 0, 24, 77 };
@@ -568,7 +723,7 @@ void MainWindow::setSceneDimensions()
 	else
 		newSceneWidth = m_textWidget->width() + leftRightBorders[m_viewBorder]*2;
 
-	m_textScene->setDimensions(newSceneWidth, 250+topBottomBorders[m_viewBorder]*2, m_textWidget->width());
+	m_textScene->setBorderDimensions(newSceneWidth, 250+topBottomBorders[m_viewBorder]*2, m_textWidget->width(), m_textWidget->pageDecode()->leftSidePanelColumns(), m_textWidget->pageDecode()->rightSidePanelColumns());
 	m_textView->setTransform(QTransform((1+(float)m_viewZoom/2)*aspectRatioHorizontalScaling[m_viewAspectRatio], 0, 0, 1+(float)m_viewZoom/2, 0, 0));
 }
 
@@ -576,20 +731,17 @@ void MainWindow::insertRow(bool copyRow)
 {
 	if (m_textWidget->document()->cursorRow() == 24)
 		return;
-	QUndoCommand *insertRowCommand = new InsertRowCommand(m_textWidget->document(), copyRow);
-	m_textWidget->document()->undoStack()->push(insertRowCommand);
+	m_textWidget->document()->undoStack()->push(new InsertRowCommand(m_textWidget->document(), copyRow));
 }
 
 void MainWindow::deleteRow()
 {
-	QUndoCommand *deleteRowCommand = new DeleteRowCommand(m_textWidget->document());
-	m_textWidget->document()->undoStack()->push(deleteRowCommand);
+	m_textWidget->document()->undoStack()->push(new DeleteRowCommand(m_textWidget->document()));
 }
 
 void MainWindow::insertSubPage(bool afterCurrentSubPage, bool copyCurrentSubPage)
 {
-	QUndoCommand *insertSubPageCommand = new InsertSubPageCommand(m_textWidget->document(), afterCurrentSubPage, copyCurrentSubPage);
-	m_textWidget->document()->undoStack()->push(insertSubPageCommand);
+	m_textWidget->document()->undoStack()->push(new InsertSubPageCommand(m_textWidget->document(), afterCurrentSubPage, copyCurrentSubPage));
 }
 
 void MainWindow::deleteSubPage()
@@ -612,24 +764,47 @@ void MainWindow::setAspectRatio(int newViewAspectRatio)
 	setSceneDimensions();
 }
 
+void MainWindow::setSmoothTransform(bool smoothTransform)
+{
+	m_viewSmoothTransform = smoothTransform;
+	if (smoothTransform)
+		m_textView->setRenderHints(QPainter::SmoothPixmapTransform);
+	else
+		m_textView->setRenderHints({ });
+}
+
 void MainWindow::zoomIn()
 {
-	if (m_viewZoom < 4)
+	if (m_viewZoom < 4) {
 		m_viewZoom++;
-	setSceneDimensions();
+		m_zoomSlider->setValue(m_viewZoom);
+	} else if (m_viewZoom < 12) {
+		m_viewZoom += 2;
+		m_zoomSlider->setValue(m_viewZoom / 2 + 2);
+	}
 }
 
 void MainWindow::zoomOut()
 {
-	if (m_viewZoom > 0)
+	if (m_viewZoom > 4) {
+		m_viewZoom -= 2;
+		m_zoomSlider->setValue(m_viewZoom == 4 ? 4 : m_viewZoom / 2 + 2);
+	} else if (m_viewZoom > 0) {
 		m_viewZoom--;
+		m_zoomSlider->setValue(m_viewZoom);
+	}
+}
+
+void MainWindow::zoomSet(int viewZoom)
+{
+	m_viewZoom = (viewZoom < 5) ? viewZoom : (viewZoom - 2) * 2;
 	setSceneDimensions();
 }
 
 void MainWindow::zoomReset()
 {
 	m_viewZoom = 2;
-	setSceneDimensions();
+	m_zoomSlider->setValue(2);
 }
 
 void MainWindow::toggleInsertMode()
@@ -643,33 +818,43 @@ void MainWindow::toggleInsertMode()
 
 void MainWindow::createStatusBar()
 {
-	QLabel *subPageLabel = new QLabel("Subpage");
-	statusBar()->insertWidget(0, subPageLabel);
-
 	m_previousSubPageButton = new QToolButton;
-	m_previousSubPageButton->setMinimumSize(subPageLabel->height(), subPageLabel->height());
-	m_previousSubPageButton->setMaximumSize(subPageLabel->height(), subPageLabel->height());
 	m_previousSubPageButton->setAutoRaise(true);
 	m_previousSubPageButton->setArrowType(Qt::LeftArrow);
-	statusBar()->insertWidget(1, m_previousSubPageButton);
+	statusBar()->insertWidget(0, m_previousSubPageButton);
 	connect(m_previousSubPageButton, &QToolButton::clicked, m_textWidget->document(), &TeletextDocument::selectSubPagePrevious);
 
 	m_subPageLabel = new QLabel("1/1");
-	statusBar()->insertWidget(2, m_subPageLabel);
+	statusBar()->insertWidget(1, m_subPageLabel);
 
 	m_nextSubPageButton = new QToolButton;
-	m_nextSubPageButton->setMinimumSize(subPageLabel->height(), subPageLabel->height());
-	m_nextSubPageButton->setMaximumSize(subPageLabel->height(), subPageLabel->height());
+	m_previousSubPageButton->setMinimumSize(m_subPageLabel->height(), m_subPageLabel->height());
+	m_previousSubPageButton->setMaximumSize(m_subPageLabel->height(), m_subPageLabel->height());
+	m_nextSubPageButton->setMinimumSize(m_subPageLabel->height(), m_subPageLabel->height());
+	m_nextSubPageButton->setMaximumSize(m_subPageLabel->height(), m_subPageLabel->height());
 	m_nextSubPageButton->setAutoRaise(true);
 	m_nextSubPageButton->setArrowType(Qt::RightArrow);
-	statusBar()->insertWidget(3, m_nextSubPageButton);
+	statusBar()->insertWidget(2, m_nextSubPageButton);
 	connect(m_nextSubPageButton, &QToolButton::clicked, m_textWidget->document(), &TeletextDocument::selectSubPageNext);
 
-	m_cursorPositionLabel = new QLabel("Row 1 Column 1");
-	statusBar()->insertWidget(4, m_cursorPositionLabel);
+	m_cursorPositionLabel = new QLabel("1, 1");
+	statusBar()->insertWidget(3, m_cursorPositionLabel);
+
+	m_zoomSlider = new QSlider;
+	m_zoomSlider->setOrientation(Qt::Horizontal);
+	m_zoomSlider->setMinimumHeight(m_subPageLabel->height());
+	m_zoomSlider->setMaximumHeight(m_subPageLabel->height());
+	m_zoomSlider->setSizePolicy(QSizePolicy::Maximum, QSizePolicy::Fixed);
+	m_zoomSlider->setRange(0, 8);
+	m_zoomSlider->setPageStep(1);
+	m_zoomSlider->setFocusPolicy(Qt::NoFocus);
+	statusBar()->insertWidget(4, m_zoomSlider);
+	connect(m_zoomSlider, &QSlider::valueChanged, this, &MainWindow::zoomSet);
 
 	m_insertModePushButton = new QPushButton("OVERWRITE");
 	m_insertModePushButton->setFlat(true);
+	m_insertModePushButton->setMinimumHeight(m_subPageLabel->height());
+	m_insertModePushButton->setMaximumHeight(m_subPageLabel->height());
 	m_insertModePushButton->setFocusProxy(m_textWidget);
 	statusBar()->addPermanentWidget(m_insertModePushButton);
 	connect(m_insertModePushButton, &QPushButton::clicked, this, &MainWindow::toggleInsertMode);
@@ -685,10 +870,11 @@ void MainWindow::createStatusBar()
 		statusBar()->addPermanentWidget(m_levelRadioButton[i]);
 	}
 	m_levelRadioButton[0]->toggle();
-	connect(m_levelRadioButton[0], &QAbstractButton::clicked, [=]() { m_textWidget->pageRender()->setRenderLevel(0); m_textWidget->update(); });
-	connect(m_levelRadioButton[1], &QAbstractButton::clicked, [=]() { m_textWidget->pageRender()->setRenderLevel(1); m_textWidget->update(); });
-	connect(m_levelRadioButton[2], &QAbstractButton::clicked, [=]() { m_textWidget->pageRender()->setRenderLevel(2); m_textWidget->update(); });
-	connect(m_levelRadioButton[3], &QAbstractButton::clicked, [=]() { m_textWidget->pageRender()->setRenderLevel(3); m_textWidget->update(); });
+	connect(m_levelRadioButton[0], &QAbstractButton::clicked, [=]() { m_textWidget->pageDecode()->setLevel(0); m_textWidget->update(); m_paletteDockWidget->setLevel3p5Accepted(false); });
+	connect(m_levelRadioButton[1], &QAbstractButton::clicked, [=]() { m_textWidget->pageDecode()->setLevel(1); m_textWidget->update(); m_paletteDockWidget->setLevel3p5Accepted(false);});
+	connect(m_levelRadioButton[2], &QAbstractButton::clicked, [=]() { m_textWidget->pageDecode()->setLevel(2); m_textWidget->update(); m_paletteDockWidget->setLevel3p5Accepted(false);});
+	connect(m_levelRadioButton[3], &QAbstractButton::clicked, [=]() { m_textWidget->pageDecode()->setLevel(3); m_textWidget->update(); m_paletteDockWidget->setLevel3p5Accepted(true);});
+
 	statusBar()->showMessage(tr("Ready"));
 }
 
@@ -705,8 +891,12 @@ void MainWindow::readSettings()
 	m_viewAspectRatio = settings.value("aspectratio", 0).toInt();
 	m_viewAspectRatio = (m_viewAspectRatio < 0 || m_viewAspectRatio > 2) ? 0 : m_viewAspectRatio;
 	m_aspectRatioActs[m_viewAspectRatio]->setChecked(true);
+	m_viewSmoothTransform = settings.value("smoothTransform", 0).toBool();
+	m_smoothTransformAction->blockSignals(true);
+	m_smoothTransformAction->setChecked(m_viewSmoothTransform);
+	m_smoothTransformAction->blockSignals(false);
 	m_viewZoom = settings.value("zoom", 2).toInt();
-	m_viewZoom = (m_viewZoom < 0 || m_viewZoom > 4) ? 2 : m_viewZoom;
+	m_viewZoom = (m_viewZoom < 0 || m_viewZoom > 12) ? 2 : m_viewZoom;
 
 	// zoom 0 = 420,426px, 1 = 620,570px, 2 = 780,720px
 	if (geometry.isEmpty()) {
@@ -732,6 +922,8 @@ void MainWindow::readSettings()
 		m_x26DockWidget->setFloating(true);
 		m_paletteDockWidget->hide();
 		m_paletteDockWidget->setFloating(true);
+		m_pageComposeLinksDockWidget->hide();
+		m_pageComposeLinksDockWidget->setFloating(true);
 	} else
 		restoreState(windowState);
 }
@@ -743,6 +935,7 @@ void MainWindow::writeSettings()
 	settings.setValue("windowState", saveState());
 	settings.setValue("border", m_viewBorder);
 	settings.setValue("aspectratio", m_viewAspectRatio);
+	settings.setValue("smoothTransform", m_viewSmoothTransform);
 	settings.setValue("zoom", m_viewZoom);
 }
 
@@ -750,7 +943,7 @@ bool MainWindow::maybeSave()
 {
 	if (m_textWidget->document()->undoStack()->isClean())
 		return true;
-	const QMessageBox::StandardButton ret = QMessageBox::warning(this, tr("QTeletextMaker"), tr("The document has been modified.\nDo you want to save your changes?"), QMessageBox::Save | QMessageBox::Discard | QMessageBox::Cancel);
+	const QMessageBox::StandardButton ret = QMessageBox::warning(this, QApplication::applicationDisplayName(), tr("The document \"%1\" has been modified.\nDo you want to save your changes or discard them?").arg(QFileInfo(m_curFile).fileName()), QMessageBox::Save | QMessageBox::Discard | QMessageBox::Cancel);
 	switch (ret) {
 		case QMessageBox::Save:
 			return save();
@@ -767,17 +960,35 @@ void MainWindow::loadFile(const QString &fileName)
 	int levelSeen;
 
 	QFile file(fileName);
-	if (!file.open(QFile::ReadOnly | QFile::Text)) {
-		QMessageBox::warning(this, tr("QTeletextMaker"), tr("Cannot read file %1:\n%2.").arg(QDir::toNativeSeparators(fileName), file.errorString()));
+	const QFileInfo fileInfo(file);
+	QIODevice::OpenMode fileOpenMode;
+
+	if (fileInfo.suffix() == "t42")
+		fileOpenMode = QFile::ReadOnly;
+	else
+		fileOpenMode = QFile::ReadOnly | QFile::Text;
+
+	if (!file.open(fileOpenMode)) {
+		QMessageBox::warning(this, QApplication::applicationDisplayName(), tr("Cannot read file %1:\n%2.").arg(QDir::toNativeSeparators(fileName), file.errorString()));
 		setCurrentFile(QString());
 		return;
 	}
 
 	QApplication::setOverrideCursor(Qt::WaitCursor);
-	loadTTI(&file, m_textWidget->document());
+
+	if (fileInfo.suffix() == "t42") {
+		importT42(&file, m_textWidget->document());
+		m_exportAutoFileName = fileName;
+	} else {
+		loadTTI(&file, m_textWidget->document());
+		m_exportAutoFileName.clear();
+	}
+
 	levelSeen = m_textWidget->document()->levelRequired();
 	m_levelRadioButton[levelSeen]->toggle();
-	m_textWidget->pageRender()->setRenderLevel(levelSeen);
+	m_textWidget->pageDecode()->setLevel(levelSeen);
+	if (levelSeen == 3)
+		m_paletteDockWidget->setLevel3p5Accepted(true);
 	updatePageWidgets();
 
 	QApplication::restoreOverrideCursor();
@@ -857,6 +1068,18 @@ void MainWindow::updateRecentFileActions()
 		m_recentFileActs[i]->setVisible(false);
 }
 
+void MainWindow::updateExportAutoAction()
+{
+	if (m_exportAutoFileName.isEmpty()) {
+		m_exportAutoAct->setText(tr("Export subpage..."));
+		m_exportAutoAct->setEnabled(false);
+		return;
+	}
+
+	m_exportAutoAct->setText(tr("Overwrite &%1").arg(MainWindow::strippedName(m_exportAutoFileName)));
+	m_exportAutoAct->setEnabled(true);
+}
+
 void MainWindow::openRecentFile()
 {
 	if (const QAction *action = qobject_cast<const QAction *>(sender()))
@@ -872,13 +1095,13 @@ bool MainWindow::saveFile(const QString &fileName)
 	if (file.open(QFile::WriteOnly | QFile::Text)) {
 		saveTTI(file, *m_textWidget->document());
 		if (!file.commit())
-			errorMessage = tr("Cannot write file %1:\n%2.") .arg(QDir::toNativeSeparators(fileName), file.errorString());
+			errorMessage = tr("Cannot write file %1:\n%2.").arg(QDir::toNativeSeparators(fileName), file.errorString());
 	} else
 		errorMessage = tr("Cannot open file %1 for writing:\n%2.").arg(QDir::toNativeSeparators(fileName), file.errorString());
 	QApplication::restoreOverrideCursor();
 
 	if (!errorMessage.isEmpty()) {
-		QMessageBox::warning(this, tr("QTeletextMaker"), errorMessage);
+		QMessageBox::warning(this, QApplication::applicationDisplayName(), errorMessage);
 		return false;
 	}
 
@@ -887,6 +1110,103 @@ bool MainWindow::saveFile(const QString &fileName)
 	return true;
 }
 
+void MainWindow::exportAuto()
+{
+	// Menu should be disabled if m_exportAutoFileName is empty, but just in case...
+	if (m_exportAutoFileName.isEmpty())
+		return;
+
+	exportT42(true);
+}
+
+void MainWindow::exportT42(bool fromAuto)
+{
+	QString errorMessage;
+	QString exportFileName;
+
+	if (fromAuto)
+		exportFileName = m_exportAutoFileName;
+	else {
+		exportFileName = m_curFile;
+		changeSuffixFromTTI(exportFileName, "t42");
+
+		exportFileName = QFileDialog::getSaveFileName(this, tr("Export t42"), exportFileName, "t42 stream (*.t42)");
+		if (exportFileName.isEmpty())
+			return;
+	}
+
+	QApplication::setOverrideCursor(Qt::WaitCursor);
+	QSaveFile file(exportFileName);
+	if (file.open(QFile::WriteOnly)) {
+		exportT42File(file, *m_textWidget->document());
+		if (!file.commit())
+			errorMessage = tr("Cannot write file %1:\n%2.").arg(QDir::toNativeSeparators(exportFileName), file.errorString());
+	} else
+		errorMessage = tr("Cannot open file %1 for writing:\n%2.").arg(QDir::toNativeSeparators(exportFileName), file.errorString());
+	QApplication::restoreOverrideCursor();
+
+	if (!errorMessage.isEmpty()) {
+		QMessageBox::warning(this, QApplication::applicationDisplayName(), errorMessage);
+		return;
+	}
+
+	MainWindow::prependToRecentFiles(exportFileName);
+
+	m_exportAutoFileName = exportFileName;
+	statusBar()->showMessage(tr("File exported"), 2000);
+}
+
+void MainWindow::exportM29()
+{
+	QString errorMessage;
+	QString exportFileName = m_curFile;
+
+	if (m_isUntitled || !QFileInfo(m_curFile).exists())
+		exportFileName = QString("P%1FF.tti").arg(m_textWidget->document()->pageNumber() >> 8, 1, 16);
+	else {
+		exportFileName = QFileInfo(m_curFile).fileName();
+		// Suggest a new filename to avoid clobbering the original file
+		if (QRegularExpression(("^[Pp]?[1-8][0-9A-Fa-f][0-9A-Fa-f]")).match(exportFileName).hasMatch()) {
+			// Page number forms start of file name, change it to xFF
+			if (exportFileName.at(0) == 'P' || exportFileName.at(0) == 'p') {
+				exportFileName[2] = 'F';
+				exportFileName[3] = 'F';
+			} else {
+				exportFileName[1] = 'F';
+				exportFileName[2] = 'F';
+			}
+		// No page number at start of file name. Try to insert "-m29" while preserving .tti(x) suffix
+		} else if (exportFileName.endsWith(".tti", Qt::CaseInsensitive)) {
+			exportFileName.chop(4);
+			exportFileName.append("-m29.tti");
+		} else if (exportFileName.endsWith(".ttix", Qt::CaseInsensitive)) {
+			exportFileName.chop(5);
+			exportFileName.append("-m29.ttix");
+		} else
+			// Shouldn't get here, bit of a messy escape but still better than clobbering the original file
+			exportFileName.append("-m29.tti");
+
+		exportFileName = QDir(QFileInfo(m_curFile).absoluteDir()).filePath(exportFileName);
+	}
+
+	exportFileName = QFileDialog::getSaveFileName(this, tr("Export M/29 tti"), exportFileName, "TTI teletext page (*.tti *.ttix)");
+	if (exportFileName.isEmpty())
+		return;
+
+	QApplication::setOverrideCursor(Qt::WaitCursor);
+	QSaveFile file(exportFileName);
+	if (file.open(QFile::WriteOnly | QFile::Text)) {
+		exportM29File(file, *m_textWidget->document());
+		if (!file.commit())
+			errorMessage = tr("Cannot write file %1:\n%2.").arg(QDir::toNativeSeparators(exportFileName), file.errorString());
+	} else
+		errorMessage = tr("Cannot open file %1 for writing:\n%2.").arg(QDir::toNativeSeparators(exportFileName), file.errorString());
+	QApplication::restoreOverrideCursor();
+
+	if (!errorMessage.isEmpty())
+		QMessageBox::warning(this, QApplication::applicationDisplayName(), errorMessage);
+}
+
 void MainWindow::setCurrentFile(const QString &fileName)
 {
 	static int sequenceNumber = 1;
@@ -925,7 +1245,22 @@ MainWindow *MainWindow::findMainWindow(const QString &fileName) const
 
 void MainWindow::updateCursorPosition()
 {
-	m_cursorPositionLabel->setText(QString("Row %1 Column %2").arg(m_textWidget->document()->cursorRow()).arg(m_textWidget->document()->cursorColumn()));
+	QString result;
+	result.reserve(19);
+
+	if (m_textWidget->document()->cursorRow() == 0)
+		result = QString("Header, %1").arg(m_textWidget->document()->cursorColumn());
+	else if (m_textWidget->document()->cursorRow() == 24)
+		result = QString("FLOF, %1").arg(m_textWidget->document()->cursorColumn());
+	else
+		result = QString("%1, %2").arg(m_textWidget->document()->cursorRow()).arg(m_textWidget->document()->cursorColumn());
+
+	if (m_textWidget->document()->selectionActive())
+		result.append(QString(" (%1, %2)").arg(m_textWidget->document()->selectionHeight()).arg(m_textWidget->document()->selectionWidth()));
+
+	m_cursorPositionLabel->setText(result);
+	m_textScene->updateCursor();
+	m_textView->ensureVisible(m_textScene->cursorRectItem(), 16, 24);
 }
 
 void MainWindow::updatePageWidgets()
@@ -933,9 +1268,11 @@ void MainWindow::updatePageWidgets()
 	m_subPageLabel->setText(QString("%1/%2").arg(m_textWidget->document()->currentSubPageIndex()+1).arg(m_textWidget->document()->numberOfSubPages()));
 	m_previousSubPageButton->setEnabled(!(m_textWidget->document()->currentSubPageIndex() == 0));
 	m_nextSubPageButton->setEnabled(!(m_textWidget->document()->currentSubPageIndex() == (m_textWidget->document()->numberOfSubPages()) - 1));
+	updateCursorPosition();
 	m_deleteSubPageAction->setEnabled(m_textWidget->document()->numberOfSubPages() > 1);
 	m_pageOptionsDockWidget->updateWidgets();
 	m_pageEnhancementsDockWidget->updateWidgets();
 	m_x26DockWidget->loadX26List();
 	m_paletteDockWidget->updateAllColourButtons();
+	m_pageComposeLinksDockWidget->updateWidgets();
 }

src/qteletextmaker/mainwindow.h

@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2020, 2021 Gavin MacGregor
+ * Copyright (C) 2020-2024 Gavin MacGregor
  *
  * This file is part of QTeletextMaker.
  *
@@ -21,16 +21,17 @@
 #define MAINWINDOW_H
 
 #include <QCheckBox>
-#include <QComboBox>
 #include <QGraphicsProxyWidget>
 #include <QGraphicsScene>
 #include <QGraphicsView>
 #include <QMainWindow>
 #include <QLabel>
 #include <QPushButton>
+#include <QSlider>
 #include <QToolButton>
 
 #include "mainwidget.h"
+#include "pagecomposelinksdockwidget.h"
 #include "pageenhancementsdockwidget.h"
 #include "pageoptionsdockwidget.h"
 #include "palettedockwidget.h"
@@ -58,30 +59,39 @@ private slots:
 	void open();
 	bool save();
 	bool saveAs();
+	void reload();
+	void exportAuto();
+	void exportT42(bool fromAuto);
 	void exportZXNet();
 	void exportEditTF();
+	void exportPNG();
+	void exportM29();
 	void updateRecentFileActions();
+	void updateExportAutoAction();
 	void openRecentFile();
 	void about();
 	void updatePageWidgets();
 	void updateCursorPosition();
 
-	void insertRow(bool);
+	void insertRow(bool copyRow);
 	void deleteRow();
-	void insertSubPage(bool, bool);
+	void insertSubPage(bool afterCurrentSubPage, bool copyCurrentSubPage);
 	void deleteSubPage();
 
 	void setSceneDimensions();
-	void setBorder(int);
-	void setAspectRatio(int);
+	void setBorder(int newViewBorder);
+	void setAspectRatio(int newViewAspectRatio);
+	void setSmoothTransform(bool smoothTransform);
 	void zoomIn();
 	void zoomOut();
+	void zoomSet(int viewZoom);
 	void zoomReset();
 
 	void toggleInsertMode();
 
 private:
 	enum { m_MaxRecentFiles = 10 };
+	const float aspectRatioHorizontalScaling[4] = { 0.6, 0.6, 0.8, 0.5 };
 
 	void init();
 	void createActions();
@@ -104,24 +114,29 @@ private:
 	QGraphicsView *m_textView;
 
 	int m_viewBorder, m_viewAspectRatio, m_viewZoom;
+	bool m_viewSmoothTransform;
 	PageOptionsDockWidget *m_pageOptionsDockWidget;
 	PageEnhancementsDockWidget *m_pageEnhancementsDockWidget;
 	X26DockWidget *m_x26DockWidget;
 	PaletteDockWidget *m_paletteDockWidget;
+	PageComposeLinksDockWidget *m_pageComposeLinksDockWidget;
 
 	QAction *m_recentFileActs[m_MaxRecentFiles];
 	QAction *m_recentFileSeparator;
 	QAction *m_recentFileSubMenuAct;
+	QAction *m_exportAutoAct;
 	QAction *m_deleteSubPageAction;
 	QAction *m_borderActs[3];
 	QAction *m_aspectRatioActs[4];
+	QAction *m_smoothTransformAction;
 
 	QLabel *m_subPageLabel, *m_cursorPositionLabel;
 	QToolButton *m_previousSubPageButton, *m_nextSubPageButton;
+	QSlider *m_zoomSlider;
 	QPushButton *m_insertModePushButton;
 	QRadioButton *m_levelRadioButton[4];
 
-	QString m_curFile;
+	QString m_curFile, m_exportAutoFileName;
 	bool m_isUntitled;
 };
 

src/qteletextmaker/pagecomposelinksdockwidget.cpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2020, 2021 Gavin MacGregor
+ * Copyright (C) 2020-2024 Gavin MacGregor
  *
  * This file is part of QTeletextMaker.
  *
@@ -20,111 +20,57 @@
 #include <QCheckBox>
 #include <QComboBox>
 #include <QGridLayout>
-#include <QGroupBox>
 #include <QLabel>
 #include <QLineEdit>
 #include <QMap>
 #include <QPair>
-#include <QSpinBox>
+#include <QRegularExpressionValidator>
 #include <QString>
 
-#include "pageenhancementsdockwidget.h"
+#include "pagecomposelinksdockwidget.h"
 
-PageEnhancementsDockWidget::PageEnhancementsDockWidget(TeletextWidget *parent): QDockWidget(parent)
+PageComposeLinksDockWidget::PageComposeLinksDockWidget(TeletextWidget *parent): QDockWidget(parent)
 {
-	QVBoxLayout *pageEnhancementsLayout = new QVBoxLayout;
-	QWidget *pageEnhancementsWidget = new QWidget;
+	QVBoxLayout *pageComposeLinksLayout = new QVBoxLayout;
+	QWidget *pageComposeLinksWidget = new QWidget;
 
 	m_parentMainWidget = parent;
 
-	this->setObjectName("PageEnhancementsDockWidget");
-	this->setWindowTitle("Page enhancements");
+	this->setObjectName("PageComposeLinksDockWidget");
+	this->setWindowTitle("Compositional links");
 
-	QGroupBox *x28GroupBox = new QGroupBox(tr("X/28 enhancements"));
-	QGridLayout *x28Layout = new QGridLayout;
-
-	// Default screen and default row colours
-	x28Layout->addWidget(new QLabel(tr("Default screen colour")), 0, 0, 1, 1);
-	x28Layout->addWidget(new QLabel(tr("Default row colour")), 1, 0, 1, 1);
-	m_defaultScreenColourCombo = new QComboBox;
-	m_defaultRowColourCombo = new QComboBox;
-	for (int r=0; r<=3; r++)
-		for (int c=0; c<=7; c++) {
-			m_defaultScreenColourCombo->addItem(tr("CLUT %1:%2").arg(r).arg(c));
-			m_defaultRowColourCombo->addItem(tr("CLUT %1:%2").arg(r).arg(c));
-		}
-	x28Layout->addWidget(m_defaultScreenColourCombo, 0, 1, 1, 1, Qt::AlignTop);
-	connect(m_defaultScreenColourCombo, QOverload<int>::of(&QComboBox::currentIndexChanged), [=](int index){ m_parentMainWidget->setDefaultScreenColour(index); });
-	x28Layout->addWidget(m_defaultRowColourCombo, 1, 1, 1, 1, Qt::AlignTop);
-	connect(m_defaultRowColourCombo, QOverload<int>::of(&QComboBox::currentIndexChanged), [=](int index){ m_parentMainWidget->setDefaultRowColour(index); });
-
-	// CLUT remapping
-	x28Layout->addWidget(new QLabel(tr("CLUT remapping")), 2, 0, 1, 1);
-	m_colourTableCombo = new QComboBox;
-	m_colourTableCombo->addItem("Fore 0  Back 0");
-	m_colourTableCombo->addItem("Fore 0  Back 1");
-	m_colourTableCombo->addItem("Fore 0  Back 2");
-	m_colourTableCombo->addItem("Fore 1  Back 1");
-	m_colourTableCombo->addItem("Fore 1  Back 2");
-	m_colourTableCombo->addItem("Fore 2  Back 1");
-	m_colourTableCombo->addItem("Fore 2  Back 2");
-	m_colourTableCombo->addItem("Fore 2  Back 3");
-	x28Layout->addWidget(m_colourTableCombo, 2, 1, 1, 1, Qt::AlignTop);
-	connect(m_colourTableCombo, QOverload<int>::of(&QComboBox::currentIndexChanged), [=](int index){ m_parentMainWidget->setColourTableRemap(index); });
-
-	// Black background colour substitution
-	m_blackBackgroundSubstAct = new QCheckBox("Black background colour substitution");
-	x28Layout->addWidget(m_blackBackgroundSubstAct, 3, 0, 1, 2, Qt::AlignTop);
-	connect(m_blackBackgroundSubstAct, &QCheckBox::stateChanged, m_parentMainWidget, &TeletextWidget::setBlackBackgroundSubst);
-
-	// Side panel columns
-	x28Layout->addWidget(new QLabel(tr("Left side panel columns")), 4, 0, 1, 1);
-	m_leftSidePanelSpinBox = new QSpinBox(this);
-	m_leftSidePanelSpinBox->setMaximum(16);
-	x28Layout->addWidget(m_leftSidePanelSpinBox, 4, 1, 1, 1, Qt::AlignTop);
-	connect(m_leftSidePanelSpinBox, QOverload<int>::of(&QSpinBox::valueChanged), [=](int index){ setLeftSidePanelWidth(index); });
-
-	x28Layout->addWidget(new QLabel(tr("Right side panel columns")), 5, 0, 1, 1);
-	m_rightSidePanelSpinBox = new QSpinBox(this);
-	m_rightSidePanelSpinBox->setMaximum(16);
-	x28Layout->addWidget(m_rightSidePanelSpinBox, 5, 1, 1, 1, Qt::AlignTop);
-	connect(m_rightSidePanelSpinBox, QOverload<int>::of(&QSpinBox::valueChanged), [=](int index){ setRightSidePanelWidth(index); });
-
-	// Side panels status
-	m_sidePanelStatusAct = new QCheckBox("Side panels at level 3.5 only");
-	x28Layout->addWidget(m_sidePanelStatusAct, 6, 0, 1, 2, Qt::AlignTop);
-	connect(m_sidePanelStatusAct, &QCheckBox::stateChanged, m_parentMainWidget, &TeletextWidget::setSidePanelAtL35Only);
-
-	x28GroupBox->setLayout(x28Layout);
-	pageEnhancementsLayout->addWidget(x28GroupBox);
-
-	QGroupBox *x27GroupBox = new QGroupBox(tr("X/27 links - Level 2.5 and 3.5"));
 	QGridLayout *x27Layout = new QGridLayout;
 
+	QLabel *levelAllLabel = new QLabel(tr("Levels 2.5 and 3.5"));
+	levelAllLabel->setAlignment(Qt::AlignCenter);
+	x27Layout->addWidget(levelAllLabel, 0, 0, 1, 5);
+
 	// Link functions
-	x27Layout->addWidget(new QLabel(tr("GPOP")),  1, 0, 1, 1);
-	x27Layout->addWidget(new QLabel(tr("POP")),   2, 0, 1, 1);
-	x27Layout->addWidget(new QLabel(tr("GDRCS")), 3, 0, 1, 1);
-	x27Layout->addWidget(new QLabel(tr("DRCS")),  4, 0, 1, 1);
+	x27Layout->addWidget(new QLabel(tr("GPOP")),  2, 0, 1, 1);
+	x27Layout->addWidget(new QLabel(tr("POP")),   3, 0, 1, 1);
+	x27Layout->addWidget(new QLabel(tr("GDRCS")), 4, 0, 1, 1);
+	x27Layout->addWidget(new QLabel(tr("DRCS")),  5, 0, 1, 1);
 
 	// Labels across the top
-	x27Layout->addWidget(new QLabel(tr("L2.5")), 0, 1, 1, 1);
-	x27Layout->addWidget(new QLabel(tr("L3.5")),  0, 2, 1, 1);
-	x27Layout->addWidget(new QLabel(tr("Page no")), 0, 3, 1, 1);
-	x27Layout->addWidget(new QLabel(tr("Sub pages required")), 0, 4, 1, 1);
+	x27Layout->addWidget(new QLabel(tr("L2.5")), 1, 1, 1, 1);
+	x27Layout->addWidget(new QLabel(tr("L3.5")),  1, 2, 1, 1);
+	x27Layout->addWidget(new QLabel(tr("Page no")), 1, 3, 1, 1);
+	x27Layout->addWidget(new QLabel(tr("Sub pages required")), 1, 4, 1, 1);
 
 	QLabel *level3p5OnlyLabel = new QLabel(tr("Level 3.5 only"));
 	level3p5OnlyLabel->setAlignment(Qt::AlignCenter);
-	x27Layout->addWidget(level3p5OnlyLabel, 5, 0, 1, 5);
+	x27Layout->addWidget(level3p5OnlyLabel, 6, 0, 1, 5);
+
+	m_pageNumberValidator = new QRegularExpressionValidator(QRegularExpression("[1-8][0-9A-Fa-f][0-9A-Fa-f]"), this);
 
 	for (int i=0; i<8; i++) {
 		if (i < 4) {
 			// Required at which Levels
 			m_composeLinkLevelCheckbox[i][0] = new QCheckBox(this);
-			x27Layout->addWidget(m_composeLinkLevelCheckbox[i][0], i+1, 1, 1, 1);
+			x27Layout->addWidget(m_composeLinkLevelCheckbox[i][0], i+2, 1, 1, 1);
 			connect(m_composeLinkLevelCheckbox[i][0], &QCheckBox::stateChanged, [=](bool active) { m_parentMainWidget->document()->currentSubPage()->setComposeLinkLevel2p5(i, active); });
 			m_composeLinkLevelCheckbox[i][1] = new QCheckBox(this);
-			x27Layout->addWidget(m_composeLinkLevelCheckbox[i][1], i+1, 2, 1, 1);
+			x27Layout->addWidget(m_composeLinkLevelCheckbox[i][1], i+2, 2, 1, 1);
 			connect(m_composeLinkLevelCheckbox[i][1], &QCheckBox::stateChanged, [=](bool active) { m_parentMainWidget->document()->currentSubPage()->setComposeLinkLevel3p5(i, active); });
 		} else {
 			// Selectable link functions for Level 3.5
@@ -133,55 +79,32 @@ PageEnhancementsDockWidget::PageEnhancementsDockWidget(TeletextWidget *parent):
 			m_composeLinkFunctionComboBox[i-4]->addItem("POP");
 			m_composeLinkFunctionComboBox[i-4]->addItem("GDRCS");
 			m_composeLinkFunctionComboBox[i-4]->addItem("DRCS");
-			x27Layout->addWidget(m_composeLinkFunctionComboBox[i-4], i+2, 0, 1, 1, Qt::AlignTop);
+			x27Layout->addWidget(m_composeLinkFunctionComboBox[i-4], i+3, 0, 1, 1, Qt::AlignTop);
 			connect(m_composeLinkFunctionComboBox[i-4], QOverload<int>::of(&QComboBox::currentIndexChanged), [=](int index) { m_parentMainWidget->document()->currentSubPage()->setComposeLinkFunction(i, index); } );
 		}
 		// Page link
 		m_composeLinkPageNumberLineEdit[i] = new QLineEdit("100");
 		m_composeLinkPageNumberLineEdit[i]->setMaxLength(3);
-		m_composeLinkPageNumberLineEdit[i]->setInputMask("DHH");
-		// TODO restrict first digit of page number to 1-8
-		x27Layout->addWidget(m_composeLinkPageNumberLineEdit[i], i+(i<4 ? 1 : 2), 3, 1, 1);
+		m_composeLinkPageNumberLineEdit[i]->setInputMask(">DHH");
+		m_composeLinkPageNumberLineEdit[i]->setValidator(m_pageNumberValidator);
+		x27Layout->addWidget(m_composeLinkPageNumberLineEdit[i], i+(i<4 ? 2 : 3), 3, 1, 1);
 		connect(m_composeLinkPageNumberLineEdit[i], &QLineEdit::textEdited, [=](QString value) { setComposeLinkPageNumber(i, value); } );
 
 		// Sub page numbers required
 		m_composeLinkSubPageNumbersLineEdit[i] = new QLineEdit(this);
-		x27Layout->addWidget(m_composeLinkSubPageNumbersLineEdit[i], i+(i<4 ? 1 : 2), 4, 1, 1);
+		x27Layout->addWidget(m_composeLinkSubPageNumbersLineEdit[i], i+(i<4 ? 2 : 3), 4, 1, 1);
 		connect(m_composeLinkSubPageNumbersLineEdit[i], &QLineEdit::textEdited, [=](QString value) { setComposeLinkSubPageNumbers(i, value); } );
 	}
 
-	x27GroupBox->setLayout(x27Layout);
-	pageEnhancementsLayout->addWidget(x27GroupBox);
+	pageComposeLinksLayout->addLayout(x27Layout);
 
-	pageEnhancementsLayout->addStretch(1);
+	pageComposeLinksLayout->addStretch(1);
 
-	pageEnhancementsWidget->setLayout(pageEnhancementsLayout);
-	this->setWidget(pageEnhancementsWidget);
+	pageComposeLinksWidget->setLayout(pageComposeLinksLayout);
+	this->setWidget(pageComposeLinksWidget);
 }
 
-void PageEnhancementsDockWidget::setLeftSidePanelWidth(int newLeftPanelSize)
-{
-	if (newLeftPanelSize && m_rightSidePanelSpinBox->value()) {
-		int newRightPanelSize = 16-newLeftPanelSize;
-		m_rightSidePanelSpinBox->blockSignals(true);
-		m_rightSidePanelSpinBox->setValue(newRightPanelSize);
-		m_rightSidePanelSpinBox->blockSignals(false);
-	}
-	m_parentMainWidget->setSidePanelWidths(newLeftPanelSize, m_rightSidePanelSpinBox->value());
-}
-
-void PageEnhancementsDockWidget::setRightSidePanelWidth(int newRightPanelSize)
-{
-	if (newRightPanelSize && m_leftSidePanelSpinBox->value()) {
-		int newLeftPanelSize = 16-newRightPanelSize;
-		m_leftSidePanelSpinBox->blockSignals(true);
-		m_leftSidePanelSpinBox->setValue(newLeftPanelSize);
-		m_leftSidePanelSpinBox->blockSignals(false);
-	}
-	m_parentMainWidget->setSidePanelWidths(m_leftSidePanelSpinBox->value(), newRightPanelSize);
-}
-
-void PageEnhancementsDockWidget::setComposeLinkPageNumber(int linkNumber, const QString &newPageNumberString)
+void PageComposeLinksDockWidget::setComposeLinkPageNumber(int linkNumber, const QString &newPageNumberString)
 {
 	// The LineEdit should check if a valid hex number was entered, but just in case...
 	bool newPageNumberOk;
@@ -194,14 +117,14 @@ void PageEnhancementsDockWidget::setComposeLinkPageNumber(int linkNumber, const
 	m_parentMainWidget->document()->currentSubPage()->setComposeLinkPageNumber(linkNumber, newPageNumberRead);
 }
 
-void PageEnhancementsDockWidget::setComposeLinkSubPageNumbers(int linkNumber, const QString &newSubPagesString)
+void PageComposeLinksDockWidget::setComposeLinkSubPageNumbers(int linkNumber, const QString &newSubPagesString)
 {
 	int newSubPageCodes = 0x0000;
 
 	if (!newSubPagesString.isEmpty()) {
 		// Turn user-entered comma separated subpages and subpage-ranges into bits
 		// First we do the "comma separated"
-		const QStringList items = newSubPagesString.split(QLatin1Char(','), QString::SkipEmptyParts);
+		const QStringList items = newSubPagesString.split(QLatin1Char(','), Qt::SkipEmptyParts);
 		// Now see if there's valid single numbers or ranges between the commas
 		for (const QString &item : items) {
 			if (item.isEmpty())
@@ -235,40 +158,8 @@ void PageEnhancementsDockWidget::setComposeLinkSubPageNumbers(int linkNumber, co
 	m_parentMainWidget->document()->currentSubPage()->setComposeLinkSubPageCodes(linkNumber, newSubPageCodes);
 }
 
-void PageEnhancementsDockWidget::updateWidgets()
+void PageComposeLinksDockWidget::updateWidgets()
 {
-	int leftSidePanelColumnsResult = 0;
-	int rightSidePanelColumnsResult = 0;
-
-	m_defaultScreenColourCombo->blockSignals(true);
-	m_defaultScreenColourCombo->setCurrentIndex(m_parentMainWidget->document()->currentSubPage()->defaultScreenColour());
-	m_defaultScreenColourCombo->blockSignals(false);
-	m_defaultRowColourCombo->blockSignals(true);
-	m_defaultRowColourCombo->setCurrentIndex(m_parentMainWidget->document()->currentSubPage()->defaultRowColour());
-	m_defaultRowColourCombo->blockSignals(false);
-	m_colourTableCombo->blockSignals(true);
-	m_colourTableCombo->setCurrentIndex(m_parentMainWidget->document()->currentSubPage()->colourTableRemap());
-	m_colourTableCombo->blockSignals(false);
-	m_blackBackgroundSubstAct->blockSignals(true);
-	m_blackBackgroundSubstAct->setChecked(m_parentMainWidget->document()->currentSubPage()->blackBackgroundSubst());
-	m_blackBackgroundSubstAct->blockSignals(false);
-
-	if (m_parentMainWidget->document()->currentSubPage()->leftSidePanelDisplayed())
-		leftSidePanelColumnsResult = (m_parentMainWidget->document()->currentSubPage()->sidePanelColumns() == 0) ? 16 : m_parentMainWidget->document()->currentSubPage()->sidePanelColumns();
-
-	if (m_parentMainWidget->document()->currentSubPage()->rightSidePanelDisplayed())
-		rightSidePanelColumnsResult = 16-m_parentMainWidget->document()->currentSubPage()->sidePanelColumns();
-
-	m_leftSidePanelSpinBox->blockSignals(true);
-	m_leftSidePanelSpinBox->setValue(leftSidePanelColumnsResult);
-	m_leftSidePanelSpinBox->blockSignals(false);
-	m_rightSidePanelSpinBox->blockSignals(true);
-	m_rightSidePanelSpinBox->setValue(rightSidePanelColumnsResult);
-	m_rightSidePanelSpinBox->blockSignals(false);
-	m_sidePanelStatusAct->blockSignals(true);
-	m_sidePanelStatusAct->setChecked(!m_parentMainWidget->document()->currentSubPage()->sidePanelStatusL25());
-	m_sidePanelStatusAct->blockSignals(false);
-
 	for (int i=0; i<8; i++) {
 		if (i >= 4) {
 			m_composeLinkFunctionComboBox[i-4]->blockSignals(true);

src/qteletextmaker/pagecomposelinksdockwidget.h

@@ -0,0 +1,52 @@
+/*
+ * Copyright (C) 2020-2024 Gavin MacGregor
+ *
+ * This file is part of QTeletextMaker.
+ *
+ * QTeletextMaker is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * QTeletextMaker is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with QTeletextMaker.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#ifndef PAGECOMPOSELINKSDOCKWIDGET_H
+#define PAGECOMPOSELINKSDOCKWIDGET_H
+
+#include <QCheckBox>
+#include <QComboBox>
+#include <QDockWidget>
+#include <QLineEdit>
+#include <QRegularExpressionValidator>
+#include <QString>
+
+#include "mainwidget.h"
+
+class PageComposeLinksDockWidget : public QDockWidget
+{
+	Q_OBJECT
+
+public:
+	PageComposeLinksDockWidget(TeletextWidget *parent);
+	void updateWidgets();
+
+private:
+	void setComposeLinkPageNumber(int linkNumber, const QString &newPageNumberString);
+	void setComposeLinkSubPageNumbers(int linkNumber, const QString &newSubPagesString);
+
+	TeletextWidget *m_parentMainWidget;
+	QCheckBox *m_composeLinkLevelCheckbox[4][2]; // For links 0-3
+	QComboBox *m_composeLinkFunctionComboBox[4]; // For links 4-7; remember to subtract 4!
+	QLineEdit *m_composeLinkPageNumberLineEdit[8], *m_composeLinkSubPageNumbersLineEdit[8];
+
+	QRegularExpressionValidator *m_pageNumberValidator;
+};
+
+#endif

src/qteletextmaker/pageenhancementsdockwidget.cpp

@@ -0,0 +1,168 @@
+/*
+ * Copyright (C) 2020-2024 Gavin MacGregor
+ *
+ * This file is part of QTeletextMaker.
+ *
+ * QTeletextMaker is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * QTeletextMaker is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with QTeletextMaker.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include <QCheckBox>
+#include <QComboBox>
+#include <QGridLayout>
+#include <QGroupBox>
+#include <QLabel>
+#include <QSpinBox>
+
+#include "pageenhancementsdockwidget.h"
+
+#include "x28commands.h"
+
+PageEnhancementsDockWidget::PageEnhancementsDockWidget(TeletextWidget *parent): QDockWidget(parent)
+{
+	QVBoxLayout *pageEnhancementsLayout = new QVBoxLayout;
+	QWidget *pageEnhancementsWidget = new QWidget;
+
+	m_parentMainWidget = parent;
+
+	this->setObjectName("PageEnhancementsDockWidget");
+	this->setWindowTitle("X/28 page enhancements");
+
+	// Colour group box and layout
+	QGroupBox *colourGroupBox = new QGroupBox(tr("Colours"));
+	QGridLayout *colourLayout = new QGridLayout;
+
+	// Default screen and default row colours
+	colourLayout->addWidget(new QLabel(tr("Default screen colour")), 0, 0, 1, 1);
+	colourLayout->addWidget(new QLabel(tr("Default row colour")), 1, 0, 1, 1);
+	m_defaultScreenColourCombo = new QComboBox;
+	m_defaultScreenColourCombo->setModel(m_parentMainWidget->document()->clutModel());
+	m_defaultRowColourCombo = new QComboBox;
+	m_defaultRowColourCombo->setModel(m_parentMainWidget->document()->clutModel());
+	colourLayout->addWidget(m_defaultScreenColourCombo, 0, 1, 1, 1, Qt::AlignTop);
+	connect(m_defaultScreenColourCombo, QOverload<int>::of(&QComboBox::currentIndexChanged), [=](int index){ m_parentMainWidget->document()->undoStack()->push(new SetFullScreenColourCommand(m_parentMainWidget->document(), index)); });
+	colourLayout->addWidget(m_defaultRowColourCombo, 1, 1, 1, 1, Qt::AlignTop);
+	connect(m_defaultRowColourCombo, QOverload<int>::of(&QComboBox::currentIndexChanged), [=](int index){ m_parentMainWidget->document()->undoStack()->push(new SetFullRowColourCommand(m_parentMainWidget->document(), index)); });
+
+	// CLUT remapping
+	colourLayout->addWidget(new QLabel(tr("CLUT remapping")), 2, 0, 1, 1);
+	m_colourTableCombo = new QComboBox;
+	m_colourTableCombo->addItem("Fore 0  Back 0");
+	m_colourTableCombo->addItem("Fore 0  Back 1");
+	m_colourTableCombo->addItem("Fore 0  Back 2");
+	m_colourTableCombo->addItem("Fore 1  Back 1");
+	m_colourTableCombo->addItem("Fore 1  Back 2");
+	m_colourTableCombo->addItem("Fore 2  Back 1");
+	m_colourTableCombo->addItem("Fore 2  Back 2");
+	m_colourTableCombo->addItem("Fore 2  Back 3");
+	colourLayout->addWidget(m_colourTableCombo, 2, 1, 1, 1, Qt::AlignTop);
+	connect(m_colourTableCombo, QOverload<int>::of(&QComboBox::currentIndexChanged), [=](int index){ m_parentMainWidget->document()->undoStack()->push(new SetCLUTRemapCommand(m_parentMainWidget->document(), index)); });
+
+	// Black background colour substitution
+	m_blackBackgroundSubstAct = new QCheckBox("Black background colour substitution");
+	colourLayout->addWidget(m_blackBackgroundSubstAct, 3, 0, 1, 2, Qt::AlignTop);
+	connect(m_blackBackgroundSubstAct, &QCheckBox::stateChanged, [=](int state){ m_parentMainWidget->document()->undoStack()->push(new SetBlackBackgroundSubstCommand(m_parentMainWidget->document(), state)); });
+
+	// Add group box to the main layout
+	colourGroupBox->setLayout(colourLayout);
+	pageEnhancementsLayout->addWidget(colourGroupBox);
+
+
+	// Side panels group box and layout
+	QGroupBox *sidePanelsGroupBox = new QGroupBox(tr("Side panels"));
+	QGridLayout *sidePanelsLayout = new QGridLayout;
+
+	// Side panel columns
+	sidePanelsLayout->addWidget(new QLabel(tr("Left side panel columns")), 0, 0, 1, 1);
+	m_leftSidePanelSpinBox = new QSpinBox(this);
+	m_leftSidePanelSpinBox->setMaximum(16);
+	sidePanelsLayout->addWidget(m_leftSidePanelSpinBox, 0, 1, 1, 1, Qt::AlignTop);
+	connect(m_leftSidePanelSpinBox, QOverload<int>::of(&QSpinBox::valueChanged), [=](int index){ setLeftSidePanelWidth(index); });
+
+	sidePanelsLayout->addWidget(new QLabel(tr("Right side panel columns")), 1, 0, 1, 1);
+	m_rightSidePanelSpinBox = new QSpinBox(this);
+	m_rightSidePanelSpinBox->setMaximum(16);
+	sidePanelsLayout->addWidget(m_rightSidePanelSpinBox, 1, 1, 1, 1, Qt::AlignTop);
+	connect(m_rightSidePanelSpinBox, QOverload<int>::of(&QSpinBox::valueChanged), [=](int index){ setRightSidePanelWidth(index); });
+
+	// Side panels status
+	m_sidePanelStatusAct = new QCheckBox("Side panels at level 3.5 only");
+	sidePanelsLayout->addWidget(m_sidePanelStatusAct, 2, 0, 1, 2, Qt::AlignTop);
+	connect(m_sidePanelStatusAct, &QCheckBox::stateChanged, m_parentMainWidget, &TeletextWidget::setSidePanelAtL35Only);
+
+	// Add group box to the main layout
+	sidePanelsGroupBox->setLayout(sidePanelsLayout);
+	pageEnhancementsLayout->addWidget(sidePanelsGroupBox);
+
+	pageEnhancementsLayout->addStretch(1);
+
+	pageEnhancementsWidget->setLayout(pageEnhancementsLayout);
+	this->setWidget(pageEnhancementsWidget);
+}
+
+void PageEnhancementsDockWidget::setLeftSidePanelWidth(int newLeftPanelSize)
+{
+	if (newLeftPanelSize && m_rightSidePanelSpinBox->value()) {
+		int newRightPanelSize = 16-newLeftPanelSize;
+		m_rightSidePanelSpinBox->blockSignals(true);
+		m_rightSidePanelSpinBox->setValue(newRightPanelSize);
+		m_rightSidePanelSpinBox->blockSignals(false);
+	}
+	m_parentMainWidget->setSidePanelWidths(newLeftPanelSize, m_rightSidePanelSpinBox->value());
+}
+
+void PageEnhancementsDockWidget::setRightSidePanelWidth(int newRightPanelSize)
+{
+	if (newRightPanelSize && m_leftSidePanelSpinBox->value()) {
+		int newLeftPanelSize = 16-newRightPanelSize;
+		m_leftSidePanelSpinBox->blockSignals(true);
+		m_leftSidePanelSpinBox->setValue(newLeftPanelSize);
+		m_leftSidePanelSpinBox->blockSignals(false);
+	}
+	m_parentMainWidget->setSidePanelWidths(m_leftSidePanelSpinBox->value(), newRightPanelSize);
+}
+
+void PageEnhancementsDockWidget::updateWidgets()
+{
+	int leftSidePanelColumnsResult = 0;
+	int rightSidePanelColumnsResult = 0;
+
+	m_defaultScreenColourCombo->blockSignals(true);
+	m_defaultScreenColourCombo->setCurrentIndex(m_parentMainWidget->document()->currentSubPage()->defaultScreenColour());
+	m_defaultScreenColourCombo->blockSignals(false);
+	m_defaultRowColourCombo->blockSignals(true);
+	m_defaultRowColourCombo->setCurrentIndex(m_parentMainWidget->document()->currentSubPage()->defaultRowColour());
+	m_defaultRowColourCombo->blockSignals(false);
+	m_colourTableCombo->blockSignals(true);
+	m_colourTableCombo->setCurrentIndex(m_parentMainWidget->document()->currentSubPage()->colourTableRemap());
+	m_colourTableCombo->blockSignals(false);
+	m_blackBackgroundSubstAct->blockSignals(true);
+	m_blackBackgroundSubstAct->setChecked(m_parentMainWidget->document()->currentSubPage()->blackBackgroundSubst());
+	m_blackBackgroundSubstAct->blockSignals(false);
+
+	if (m_parentMainWidget->document()->currentSubPage()->leftSidePanelDisplayed())
+		leftSidePanelColumnsResult = (m_parentMainWidget->document()->currentSubPage()->sidePanelColumns() == 0) ? 16 : m_parentMainWidget->document()->currentSubPage()->sidePanelColumns();
+
+	if (m_parentMainWidget->document()->currentSubPage()->rightSidePanelDisplayed())
+		rightSidePanelColumnsResult = 16-m_parentMainWidget->document()->currentSubPage()->sidePanelColumns();
+
+	m_leftSidePanelSpinBox->blockSignals(true);
+	m_leftSidePanelSpinBox->setValue(leftSidePanelColumnsResult);
+	m_leftSidePanelSpinBox->blockSignals(false);
+	m_rightSidePanelSpinBox->blockSignals(true);
+	m_rightSidePanelSpinBox->setValue(rightSidePanelColumnsResult);
+	m_rightSidePanelSpinBox->blockSignals(false);
+	m_sidePanelStatusAct->blockSignals(true);
+	m_sidePanelStatusAct->setChecked(!m_parentMainWidget->document()->currentSubPage()->sidePanelStatusL25());
+	m_sidePanelStatusAct->blockSignals(false);
+}

src/qteletextmaker/pageenhancementsdockwidget.h

@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2020, 2021 Gavin MacGregor
+ * Copyright (C) 2020-2024 Gavin MacGregor
  *
  * This file is part of QTeletextMaker.
  *
@@ -23,9 +23,7 @@
 #include <QCheckBox>
 #include <QComboBox>
 #include <QDockWidget>
-#include <QLineEdit>
 #include <QSpinBox>
-#include <QString>
 
 #include "mainwidget.h"
 
@@ -38,19 +36,13 @@ public:
 	void updateWidgets();
 
 private:
-	void setLeftSidePanelWidth(int);
-	void setRightSidePanelWidth(int);
-	void setComposeLinkPageNumber(int, const QString &);
-	void setComposeLinkSubPageNumbers(int, const QString &);
+	void setLeftSidePanelWidth(int newLeftPanelSize);
+	void setRightSidePanelWidth(int newRightPanelSize);
 
 	TeletextWidget *m_parentMainWidget;
 	QComboBox *m_defaultScreenColourCombo, *m_defaultRowColourCombo, *m_colourTableCombo;
 	QCheckBox *m_blackBackgroundSubstAct, *m_sidePanelStatusAct;
 	QSpinBox *m_leftSidePanelSpinBox, *m_rightSidePanelSpinBox;
-
-	QCheckBox *m_composeLinkLevelCheckbox[4][2]; // For links 0-3
-	QComboBox *m_composeLinkFunctionComboBox[4]; // For links 4-7; remember to subtract 4!
-	QLineEdit *m_composeLinkPageNumberLineEdit[8], *m_composeLinkSubPageNumbersLineEdit[8];
 };
 
 #endif

src/qteletextmaker/pageoptionsdockwidget.cpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2020, 2021 Gavin MacGregor
+ * Copyright (C) 2020-2024 Gavin MacGregor
  *
  * This file is part of QTeletextMaker.
  *
@@ -24,6 +24,7 @@
 #include <QHBoxLayout>
 #include <QLabel>
 #include <QLineEdit>
+#include <QRegularExpressionValidator>
 #include <QSpinBox>
 #include <QVBoxLayout>
 
@@ -40,14 +41,16 @@ PageOptionsDockWidget::PageOptionsDockWidget(TeletextWidget *parent): QDockWidge
 	this->setWindowTitle("Page options");
 
 	// Page number
+	m_pageNumberValidator = new QRegularExpressionValidator(QRegularExpression("[1-8][0-9A-Fa-f][0-9A-Fa-f]"), this);
+
 	QHBoxLayout *pageNumberLayout = new QHBoxLayout;
 	pageNumberLayout->addWidget(new QLabel(tr("Page number")));
 	m_pageNumberEdit = new QLineEdit("100");
 	m_pageNumberEdit->setMaxLength(3);
-	m_pageNumberEdit->setInputMask("DHH");
-	//TODO restrict first digit of page number to 1-8
+	m_pageNumberEdit->setInputMask(">DHH");
+	m_pageNumberEdit->setValidator(m_pageNumberValidator);
 	pageNumberLayout->addWidget(m_pageNumberEdit);
-	connect(m_pageNumberEdit, &QLineEdit::textEdited, m_parentMainWidget->document(), &TeletextDocument::setPageNumber);
+	connect(m_pageNumberEdit, &QLineEdit::textEdited, m_parentMainWidget->document(), &TeletextDocument::setPageNumberFromString);
 
 	pageOptionsLayout->addLayout(pageNumberLayout);
 
@@ -66,8 +69,8 @@ PageOptionsDockWidget::PageOptionsDockWidget(TeletextWidget *parent): QDockWidge
 		fastTextLayout->addWidget(new QLabel(fastTextLabel[i]), 0, i, 1, 1, Qt::AlignCenter);
 		m_fastTextEdit[i] = new QLineEdit;
 		m_fastTextEdit[i]->setMaxLength(3);
-		m_fastTextEdit[i]->setInputMask("DHH");
-		//TODO restrict first digit of page number to 1-8
+		m_fastTextEdit[i]->setInputMask(">DHH");
+		m_fastTextEdit[i]->setValidator(m_pageNumberValidator);
 		fastTextLayout->addWidget(m_fastTextEdit[i], 1, i, 1, 1);
 		connect(m_fastTextEdit[i], &QLineEdit::textEdited, [=](QString value) { setFastTextLinkPageNumber(i, value); } );
 	}
@@ -189,7 +192,10 @@ void PageOptionsDockWidget::updateWidgets()
 	m_defaultNOSCombo->setCurrentIndex(m_defaultNOSCombo->findData((m_parentMainWidget->document()->currentSubPage()->defaultCharSet() << 3) | m_parentMainWidget->document()->currentSubPage()->defaultNOS()));
 	m_defaultNOSCombo->blockSignals(false);
 	m_secondRegionCombo->blockSignals(true);
-	m_secondRegionCombo->setCurrentText(QString::number(m_parentMainWidget->document()->currentSubPage()->secondCharSet()));
+	if (m_parentMainWidget->document()->currentSubPage()->secondCharSet() == 15)
+		m_secondRegionCombo->setCurrentIndex(0);
+	else
+		m_secondRegionCombo->setCurrentText(QString::number(m_parentMainWidget->document()->currentSubPage()->secondCharSet()));
 	m_secondRegionCombo->blockSignals(false);
 	m_secondNOSCombo->blockSignals(true);
 	updateSecondNOSOptions();

src/qteletextmaker/pageoptionsdockwidget.h

@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2020, 2021 Gavin MacGregor
+ * Copyright (C) 2020-2024 Gavin MacGregor
  *
  * This file is part of QTeletextMaker.
  *
@@ -24,6 +24,7 @@
 #include <QComboBox>
 #include <QDockWidget>
 #include <QLineEdit>
+#include <QRegularExpressionValidator>
 #include <QSpinBox>
 
 #include "mainwidget.h"
@@ -45,8 +46,10 @@ private:
 	QComboBox *m_defaultRegionCombo, *m_defaultNOSCombo, *m_secondRegionCombo, *m_secondNOSCombo;
 	QLineEdit *m_fastTextEdit[6];
 
-	void addRegionList(QComboBox *);
-	void setFastTextLinkPageNumber(int, const QString &);
+	QRegularExpressionValidator *m_pageNumberValidator;
+
+	void addRegionList(QComboBox *regionCombo);
+	void setFastTextLinkPageNumber(int linkNumber, const QString &pageNumberString);
 	void setDefaultRegion();
 	void setDefaultNOS();
 	void setSecondRegion();

src/qteletextmaker/palettedockwidget.cpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2020, 2021 Gavin MacGregor
+ * Copyright (C) 2020-2024 Gavin MacGregor
  *
  * This file is part of QTeletextMaker.
  *
@@ -28,7 +28,7 @@
 
 #include "palettedockwidget.h"
 
-#include "levelonecommands.h"
+#include "x28commands.h"
 #include "document.h"
 #include "mainwidget.h"
 
@@ -39,6 +39,9 @@ PaletteDockWidget::PaletteDockWidget(TeletextWidget *parent): QDockWidget(parent
 
 	m_parentMainWidget = parent;
 
+	m_level3p5Accepted = false; // true when Level 3.5 radio button is checked in main window
+	m_level3p5Seen = false;     // true when CLUT 0 or 1 is redefined
+
 	this->setObjectName("PaletteDockWidget");
 	this->setWindowTitle("Palette");
 	for (int c=0; c<=7; c++)
@@ -57,6 +60,9 @@ PaletteDockWidget::PaletteDockWidget(TeletextWidget *parent): QDockWidget(parent
 			connect(m_colourButton[i], &QAbstractButton::clicked, [=]() { selectColour(i); });
 		}
 	}
+
+	updateLevel3p5Cursor();
+
 	m_showHexValuesCheckBox = new QCheckBox(tr("Show colour hex values"));
 	paletteGridLayout->addWidget(m_showHexValuesCheckBox, 5, 1, 1, 8);
 	connect(m_showHexValuesCheckBox, &QCheckBox::stateChanged, this, &PaletteDockWidget::updateAllColourButtons);
@@ -70,26 +76,34 @@ void PaletteDockWidget::updateColourButton(int colourIndex)
 {
 	if (colourIndex == 8)
 		return;
+
 	QString colourString = QString("%1").arg(m_parentMainWidget->document()->currentSubPage()->CLUT(colourIndex), 3, 16, QChar('0'));
 	if (m_showHexValuesCheckBox->isChecked())
 		m_colourButton[colourIndex]->setText(colourString);
 	else
 		m_colourButton[colourIndex]->setText(nullptr);
 
-	// Set text itself to black or white so it can be seen over background colour - http://alienryderflex.com/hsp.html
 	int r = m_parentMainWidget->document()->currentSubPage()->CLUT(colourIndex) >> 8;
 	int g = (m_parentMainWidget->document()->currentSubPage()->CLUT(colourIndex) >> 4) & 0xf;
 	int b = m_parentMainWidget->document()->currentSubPage()->CLUT(colourIndex) & 0xf;
+	// Set text itself to black or white so it can be seen over background colour - http://alienryderflex.com/hsp.html
 	char blackOrWhite = (sqrt(r*r*0.299 + g*g*0.587 + b*b*0.114) > 7.647) ? '0' : 'f';
 
 	QString qss = QString("background-color: #%1; color: #%2%2%2; border: none").arg(colourString).arg(blackOrWhite);
 	m_colourButton[colourIndex]->setStyleSheet(qss);
 
-	if (m_parentMainWidget->document()->currentSubPage()->isPaletteDefault(colourIndex))
-		// Default colour was set, disable Reset button if all colours in row are default as well
-		m_resetButton[colourIndex>>3]->setEnabled(!m_parentMainWidget->document()->currentSubPage()->isPaletteDefault(colourIndex & 0x18, colourIndex | 0x07));
-	else
-		m_resetButton[colourIndex>>3]->setEnabled(true);
+	if (m_parentMainWidget->document()->currentSubPage()->isPaletteDefault(colourIndex)) {
+		// Default colour was set, disable Reset button if all colours in a CLUT row are default as well
+		m_resetButton[colourIndex >> 3]->setEnabled(!m_parentMainWidget->document()->currentSubPage()->isPaletteDefault(colourIndex & 0x18, colourIndex | 0x07));
+		// Check if CLUTs 0 and 1 are all default if necessary
+		if (colourIndex < 16 && m_parentMainWidget->document()->currentSubPage()->isPaletteDefault(0, 15))
+			setLevel3p5Seen(false);
+	} else {
+		// Custom colour was set, enable Reset button for that CLUT
+		m_resetButton[colourIndex >> 3]->setEnabled(true);
+		if (colourIndex < 16)
+			setLevel3p5Seen(true);
+	}
 }
 
 void PaletteDockWidget::updateAllColourButtons()
@@ -98,6 +112,41 @@ void PaletteDockWidget::updateAllColourButtons()
 		updateColourButton(i);
 }
 
+void PaletteDockWidget::setLevel3p5Accepted(bool b)
+{
+	if (b == m_level3p5Accepted)
+		return;
+
+	m_level3p5Accepted = b;
+
+	updateLevel3p5Cursor();
+}
+
+void PaletteDockWidget::setLevel3p5Seen(bool b)
+{
+	if (b == m_level3p5Seen)
+		return;
+
+	m_level3p5Seen = b;
+
+	updateLevel3p5Cursor();
+}
+
+void PaletteDockWidget::updateLevel3p5Cursor()
+{
+	const Qt::CursorShape cursor = (m_level3p5Accepted || m_level3p5Seen) ? Qt::ArrowCursor : Qt::ForbiddenCursor;
+
+	if (m_colourButton[0]->cursor() == cursor)
+		return;
+
+	for (int i=0; i<16; i++) {
+		if (i == 8)
+			continue;
+
+		m_colourButton[i]->setCursor(cursor);
+	}
+}
+
 void PaletteDockWidget::showEvent(QShowEvent *event)
 {
 	Q_UNUSED(event);
@@ -106,16 +155,16 @@ void PaletteDockWidget::showEvent(QShowEvent *event)
 
 void PaletteDockWidget::selectColour(int colourIndex)
 {
+	if (colourIndex < 16 && !m_level3p5Accepted && !m_level3p5Seen)
+		return;
+
     const QColor newColour = QColorDialog::getColor(m_parentMainWidget->document()->currentSubPage()->CLUTtoQColor(colourIndex), this, "Select Colour");
 
-	if (newColour.isValid()) {
-		QUndoCommand *setColourCommand = new SetColourCommand(m_parentMainWidget->document(), colourIndex, ((newColour.red() & 0xf0) << 4) | (newColour.green() & 0xf0) | ((newColour.blue() & 0xf0) >> 4));
-		m_parentMainWidget->document()->undoStack()->push(setColourCommand);
-	}
+	if (newColour.isValid())
+		m_parentMainWidget->document()->undoStack()->push(new SetColourCommand(m_parentMainWidget->document(), colourIndex, ((newColour.red() & 0xf0) << 4) | (newColour.green() & 0xf0) | ((newColour.blue() & 0xf0) >> 4)));
 }
 
 void PaletteDockWidget::resetCLUT(int colourTable)
 {
-	QUndoCommand *resetCLUTCommand = new ResetCLUTCommand(m_parentMainWidget->document(), colourTable);
-	m_parentMainWidget->document()->undoStack()->push(resetCLUTCommand);
+	m_parentMainWidget->document()->undoStack()->push(new ResetCLUTCommand(m_parentMainWidget->document(), colourTable));
 }

src/qteletextmaker/palettedockwidget.h

@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2020, 2021 Gavin MacGregor
+ * Copyright (C) 2020-2024 Gavin MacGregor
  *
  * This file is part of QTeletextMaker.
  *
@@ -35,19 +35,23 @@ public:
 	void updateAllColourButtons();
 
 public slots:
-	void updateColourButton(int);
+	void updateColourButton(int colourIndex);
+	void setLevel3p5Accepted(bool b);
 
 protected:
-	void showEvent(QShowEvent *);
+	void showEvent(QShowEvent *event);
 
 private slots:
-	void selectColour(int);
+	void selectColour(int colourIndex);
+	void setLevel3p5Seen(bool b);
+	void updateLevel3p5Cursor();
 
 private:
-	void resetCLUT(int);
+	void resetCLUT(int colourTable);
 
 	QPushButton *m_colourButton[32], *m_resetButton[4];
 	QCheckBox *m_showHexValuesCheckBox;
+	bool m_level3p5Accepted, m_level3p5Seen;
 
 	TeletextWidget *m_parentMainWidget;
 };

src/qteletextmaker/x26commands.cpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2020, 2021 Gavin MacGregor
+ * Copyright (C) 2020-2024 Gavin MacGregor
  *
  * This file is part of QTeletextMaker.
  *
@@ -50,17 +50,30 @@ void InsertTripletCommand::redo()
 	for (int i=0; i<m_count; i++)
 		m_teletextDocument->currentSubPage()->enhancements()->insert(m_row+i, m_insertedTriplet);
 
+	if (!changingSubPage)
+		m_x26Model->endInsertRows();
+
+	// Preserve pointers to local object definitions that have moved
+	for (int i=0; i<m_teletextDocument->currentSubPage()->enhancements()->size(); i++) {
+		X26Triplet triplet = m_teletextDocument->currentSubPage()->enhancements()->at(i);
+
+		if (triplet.modeExt() >= 0x11 && triplet.modeExt() <= 0x13 && ((triplet.address() & 0x18) == 0x08) && triplet.objectLocalIndex() >= m_row) {
+			triplet.setObjectLocalIndex(triplet.objectLocalIndex() + m_count);
+			m_teletextDocument->currentSubPage()->enhancements()->replace(i, triplet);
+			if (!changingSubPage)
+				m_x26Model->emit dataChanged(m_x26Model->createIndex(i, 0), m_x26Model->createIndex(i, 3));
+		}
+	}
+
 	if (changingSubPage)
 		m_teletextDocument->emit subPageSelected();
-	else {
-		m_x26Model->endInsertRows();
-		m_teletextDocument->emit refreshNeeded();
-	}
+	else
+		m_teletextDocument->emit contentsChanged();
 
 	if (m_firstDo)
 		m_firstDo = false;
-	else
-		m_teletextDocument->emit tripletCommandHighlight(m_row+1);
+
+	m_teletextDocument->emit tripletCommandHighlight(m_row);
 }
 
 void InsertTripletCommand::undo()
@@ -76,12 +89,25 @@ void InsertTripletCommand::undo()
 	for (int i=0; i<m_count; i++)
 		m_teletextDocument->currentSubPage()->enhancements()->removeAt(m_row);
 
+	if (!changingSubPage)
+		m_x26Model->endRemoveRows();
+
+	// Preserve pointers to local object definitions that have moved
+	for (int i=0; i<m_teletextDocument->currentSubPage()->enhancements()->size(); i++) {
+		X26Triplet triplet = m_teletextDocument->currentSubPage()->enhancements()->at(i);
+
+		if (triplet.modeExt() >= 0x11 && triplet.modeExt() <= 0x13 && ((triplet.address() & 0x18) == 0x08) && triplet.objectLocalIndex() >= m_row) {
+			triplet.setObjectLocalIndex(triplet.objectLocalIndex() - m_count);
+			m_teletextDocument->currentSubPage()->enhancements()->replace(i, triplet);
+			if (!changingSubPage)
+				m_x26Model->emit dataChanged(m_x26Model->createIndex(i, 0), m_x26Model->createIndex(i, 3));
+		}
+	}
+
 	if (changingSubPage)
 		m_teletextDocument->emit subPageSelected();
-	else {
-		m_x26Model->endRemoveRows();
-		m_teletextDocument->emit refreshNeeded();
-	}
+	else
+		m_teletextDocument->emit contentsChanged();
 }
 
 
@@ -101,15 +127,35 @@ DeleteTripletCommand::DeleteTripletCommand(TeletextDocument *teletextDocument, X
 
 void DeleteTripletCommand::redo()
 {
-	m_teletextDocument->emit aboutToChangeSubPage();
-	m_teletextDocument->selectSubPageIndex(m_subPageIndex);
+	bool changingSubPage = (m_teletextDocument->currentSubPageIndex() != m_subPageIndex);
+
+	if (changingSubPage) {
+		m_teletextDocument->emit aboutToChangeSubPage();
+		m_teletextDocument->selectSubPageIndex(m_subPageIndex);
+	} else
+		m_x26Model->beginRemoveRows(QModelIndex(), m_row, m_row+m_count-1);
 
-	m_x26Model->beginRemoveRows(QModelIndex(), m_row, m_row+m_count-1);
 	for (int i=0; i<m_count; i++)
 		m_teletextDocument->currentSubPage()->enhancements()->removeAt(m_row);
-	m_x26Model->endRemoveRows();
 
-	m_teletextDocument->emit subPageSelected();
+	if (!changingSubPage)
+		m_x26Model->endRemoveRows();
+
+	// Preserve pointers to local object definitions that have moved
+	for (int i=0; i<m_teletextDocument->currentSubPage()->enhancements()->size(); i++) {
+		X26Triplet triplet = m_teletextDocument->currentSubPage()->enhancements()->at(i);
+
+		if (triplet.modeExt() >= 0x11 && triplet.modeExt() <= 0x13 && ((triplet.address() & 0x18) == 0x08) && triplet.objectLocalIndex() >= m_row) {
+			triplet.setObjectLocalIndex(triplet.objectLocalIndex() - m_count);
+			m_teletextDocument->currentSubPage()->enhancements()->replace(i, triplet);
+			m_x26Model->emit dataChanged(m_x26Model->createIndex(i, 0), m_x26Model->createIndex(i, 3));
+		}
+	}
+
+	if (changingSubPage)
+		m_teletextDocument->emit subPageSelected();
+	else
+		m_teletextDocument->emit contentsChanged();
 }
 
 void DeleteTripletCommand::undo()
@@ -125,12 +171,25 @@ void DeleteTripletCommand::undo()
 	for (int i=0; i<m_count; i++)
 		m_teletextDocument->currentSubPage()->enhancements()->insert(m_row+i, m_deletedTriplet);
 
+	if (!changingSubPage)
+		m_x26Model->endInsertRows();
+
+	// Preserve pointers to local object definitions that have moved
+	for (int i=0; i<m_teletextDocument->currentSubPage()->enhancements()->size(); i++) {
+		X26Triplet triplet = m_teletextDocument->currentSubPage()->enhancements()->at(i);
+
+		if (triplet.modeExt() >= 0x11 && triplet.modeExt() <= 0x13 && ((triplet.address() & 0x18) == 0x08) && triplet.objectLocalIndex() >= m_row) {
+			triplet.setObjectLocalIndex(triplet.objectLocalIndex() + m_count);
+			m_teletextDocument->currentSubPage()->enhancements()->replace(i, triplet);
+			if (!changingSubPage)
+				m_x26Model->emit dataChanged(m_x26Model->createIndex(i, 0), m_x26Model->createIndex(i, 3));
+		}
+	}
+
 	if (changingSubPage)
 		m_teletextDocument->emit subPageSelected();
-	else {
-		m_x26Model->endInsertRows();
-		m_teletextDocument->emit refreshNeeded();
-	}
+	else
+		m_teletextDocument->emit contentsChanged();
 
 	m_teletextDocument->emit tripletCommandHighlight(m_row);
 }
@@ -164,9 +223,9 @@ void EditTripletCommand::redo()
 	if (m_teletextDocument->currentSubPageIndex() != m_subPageIndex)
 		m_teletextDocument->selectSubPageIndex(m_subPageIndex, true);
 
-	m_teletextDocument->currentSubPage()->enhancements()->operator[](m_row) = m_newTriplet;
+	m_teletextDocument->currentSubPage()->enhancements()->replace(m_row, m_newTriplet);
 	m_x26Model->emit dataChanged(m_x26Model->createIndex(m_row, 0), m_x26Model->createIndex(m_row, 3), {m_role});
-	m_teletextDocument->emit refreshNeeded();
+	m_teletextDocument->emit contentsChanged();
 
 	if (m_firstDo)
 		m_firstDo = false;
@@ -179,9 +238,9 @@ void EditTripletCommand::undo()
 	if (m_teletextDocument->currentSubPageIndex() != m_subPageIndex)
 		m_teletextDocument->selectSubPageIndex(m_subPageIndex, true);
 
-	m_teletextDocument->currentSubPage()->enhancements()->operator[](m_row) = m_oldTriplet;
+	m_teletextDocument->currentSubPage()->enhancements()->replace(m_row, m_oldTriplet);
 	m_x26Model->emit dataChanged(m_x26Model->createIndex(m_row, 0), m_x26Model->createIndex(m_row, 3), {m_role});
-	m_teletextDocument->emit refreshNeeded();
+	m_teletextDocument->emit contentsChanged();
 	m_teletextDocument->emit tripletCommandHighlight(m_row);
 }
 

src/qteletextmaker/x26commands.h

@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2020, 2021 Gavin MacGregor
+ * Copyright (C) 2020-2024 Gavin MacGregor
  *
  * This file is part of QTeletextMaker.
  *
@@ -29,7 +29,7 @@
 class InsertTripletCommand : public QUndoCommand
 {
 public:
-	InsertTripletCommand(TeletextDocument *, X26Model *, int, int, const X26Triplet, QUndoCommand *parent = 0);
+	InsertTripletCommand(TeletextDocument *teletextDocument, X26Model *x26Model, int row, int count, const X26Triplet newTriplet, QUndoCommand *parent = 0);
 
 	void redo() override;
 	void undo() override;
@@ -45,7 +45,7 @@ private:
 class DeleteTripletCommand : public QUndoCommand
 {
 public:
-	DeleteTripletCommand(TeletextDocument *, X26Model *, int, int, QUndoCommand *parent = 0);
+	DeleteTripletCommand(TeletextDocument *teletextDocument, X26Model *x26Model, int row, int count, QUndoCommand *parent = 0);
 
 	void redo() override;
 	void undo() override;
@@ -63,7 +63,7 @@ public:
 	enum { Id = 201 };
 	enum EditTripletEnum { ETaddress, ETmode, ETdata };
 
-	EditTripletCommand(TeletextDocument *, X26Model *, int, int, int, int, int, QUndoCommand *parent = 0);
+	EditTripletCommand(TeletextDocument *teletextDocument, X26Model *x26Model, int row, int tripletPart, int bitsToKeep, int newValue, int role, QUndoCommand *parent = 0);
 
 	void redo() override;
 	void undo() override;

src/qteletextmaker/x26dockwidget.cpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2020, 2021 Gavin MacGregor
+ * Copyright (C) 2020-2024 Gavin MacGregor
  *
  * This file is part of QTeletextMaker.
  *
@@ -17,6 +17,9 @@
  * along with QTeletextMaker.  If not, see <https://www.gnu.org/licenses/>.
  */
 
+#include "x26dockwidget.h"
+
+#include <QAbstractListModel>
 #include <QActionGroup>
 #include <QButtonGroup>
 #include <QCheckBox>
@@ -34,7 +37,56 @@
 #include <QToolButton>
 #include <QVBoxLayout>
 
-#include "x26dockwidget.h"
+#include "render.h"
+#include "x26menus.h"
+
+CharacterListModel::CharacterListModel(QObject *parent): QAbstractListModel(parent)
+{
+	m_characterSet = 0;
+	m_mosaic = true;
+}
+
+int CharacterListModel::rowCount(const QModelIndex & /*parent*/) const
+{
+	return 96;
+}
+
+QVariant CharacterListModel::data(const QModelIndex &index, int role) const
+{
+	if (!index.isValid())
+		return QVariant();
+
+	if (role == Qt::DisplayRole)
+		return QString("0x%1").arg(index.row()+0x20, 2, 16);
+
+	if (role == Qt::DecorationRole) {
+		if (m_mosaic && (index.row()+32) & 0x20)
+			return m_fontBitmap.charBitmap(index.row()+32, 24);
+		else
+			return m_fontBitmap.charBitmap(index.row()+32, m_characterSet);
+	}
+
+	return QVariant();
+}
+
+void CharacterListModel::setCharacterSet(int characterSet)
+{
+	if (characterSet != m_characterSet || m_mosaic) {
+		m_characterSet = characterSet;
+		m_mosaic = false;
+		emit dataChanged(createIndex(0, 0), createIndex(95, 0), QVector<int>(Qt::DecorationRole));
+	}
+}
+
+void CharacterListModel::setG1AndBlastCharacterSet(int characterSet)
+{
+	if (characterSet != m_characterSet || !m_mosaic) {
+		m_characterSet = characterSet;
+		m_mosaic = true;
+		emit dataChanged(createIndex(0, 0), createIndex(95, 0), QVector<int>(Qt::DecorationRole));
+	}
+}
+
 
 X26DockWidget::X26DockWidget(TeletextWidget *parent): QDockWidget(parent)
 {
@@ -70,16 +122,6 @@ X26DockWidget::X26DockWidget(TeletextWidget *parent): QDockWidget(parent)
 	// "Cooked" or user-friendly triplet type, row and column selection
 	QHBoxLayout *cookedTripletLayout = new QHBoxLayout;
 
-	m_cookedModeTypeComboBox = new QComboBox;
-	m_cookedModeTypeComboBox->addItem("Set Active Position");
-	m_cookedModeTypeComboBox->addItem("Row triplet");
-	m_cookedModeTypeComboBox->addItem("Column triplet");
-	m_cookedModeTypeComboBox->addItem("Object");
-	m_cookedModeTypeComboBox->addItem("Terminator");
-	m_cookedModeTypeComboBox->addItem("PDC/reserved");
-	cookedTripletLayout->addWidget(m_cookedModeTypeComboBox);
-	connect(m_cookedModeTypeComboBox, QOverload<int>::of(&QComboBox::activated), this, &X26DockWidget::updateCookedModeFromCookedType);
-
 	// Cooked row spinbox
 	QLabel *rowLabel = new QLabel(tr("Row"));
 	rowLabel->setSizePolicy(QSizePolicy::Minimum, QSizePolicy::Preferred);
@@ -102,10 +144,25 @@ X26DockWidget::X26DockWidget(TeletextWidget *parent): QDockWidget(parent)
 	connect(m_cookedColumnSpinBox, QOverload<int>::of(&QSpinBox::valueChanged), this, &X26DockWidget::cookedColumnSpinBoxChanged);
 
 	// Cooked triplet mode
-	m_cookedModeComboBox = new QComboBox;
-	m_cookedModeComboBox->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Preferred);
-	cookedTripletLayout->addWidget(m_cookedModeComboBox);
-	connect(m_cookedModeComboBox, QOverload<int>::of(&QComboBox::activated), this, &X26DockWidget::cookedModeComboBoxChanged);
+	QLabel *modeLabel = new QLabel(tr("Mode"));
+	modeLabel->setSizePolicy(QSizePolicy::Minimum, QSizePolicy::Preferred);
+	cookedTripletLayout->addWidget(modeLabel);
+	m_cookedModePushButton = new QPushButton;
+	cookedTripletLayout->addWidget(m_cookedModePushButton);
+
+	// Cooked triplet menu
+	// We connect the menus for both "Insert" buttons at the same time
+	m_cookedModeMenu = new TripletModeQMenu(this);
+	m_insertBeforeMenu = new TripletModeQMenu(this);
+	m_insertAfterMenu = new TripletModeQMenu(this);
+
+	for (int m=0; m<64; m++) {
+		connect(static_cast<TripletModeQMenu *>(m_cookedModeMenu)->action(m), &QAction::triggered, [=]() { cookedModeMenuSelected(m); });
+		connect(static_cast<TripletModeQMenu *>(m_insertBeforeMenu)->action(m), &QAction::triggered, [=]() { insertTriplet(m, false); });
+		connect(static_cast<TripletModeQMenu *>(m_insertAfterMenu)->action(m), &QAction::triggered, [=]() { insertTriplet(m, true); });
+	}
+
+	m_cookedModePushButton->setMenu(m_cookedModeMenu);
 
 	// Raw triplet values
 	QHBoxLayout *rawTripletLayout = new QHBoxLayout;
@@ -161,9 +218,7 @@ X26DockWidget::X26DockWidget(TeletextWidget *parent): QDockWidget(parent)
 	QHBoxLayout *colourAndRowLayout = new QHBoxLayout;
 
 	m_colourComboBox = new QComboBox;
-	for (int c=0; c<=3; c++)
-		for (int e=0; e<=7; e++)
-			m_colourComboBox->addItem(tr("CLUT %1:%2").arg(c).arg(e));
+	m_colourComboBox->setModel(m_parentMainWidget->document()->clutModel());
 	colourAndRowLayout->addWidget(m_colourComboBox);
 	connect(m_colourComboBox, QOverload<int>::of(&QComboBox::activated), this, [=](const int value) { updateModelFromCookedWidget(value, Qt::UserRole+1); } );
 
@@ -181,8 +236,7 @@ X26DockWidget::X26DockWidget(TeletextWidget *parent): QDockWidget(parent)
 	QHBoxLayout *characterCodeLayout = new QHBoxLayout;
 
 	m_characterCodeComboBox = new QComboBox;
-	for (int i=32; i<128; i++)
-		m_characterCodeComboBox->addItem(QString("0x%1").arg(i, 2, 16), i);
+	m_characterCodeComboBox->setModel(&m_characterListModel);
 	characterCodeLayout->addWidget(m_characterCodeComboBox);
 	connect(m_characterCodeComboBox, QOverload<int>::of(&QComboBox::activated), this, [=](const int value) { updateModelFromCookedWidget(value+32, Qt::UserRole+1); } );
 
@@ -240,7 +294,7 @@ X26DockWidget::X26DockWidget(TeletextWidget *parent): QDockWidget(parent)
 	m_objectSourceComboBox->addItem("POP");
 	m_objectSourceComboBox->addItem("GPOP");
 	invokeObjectLayout->addWidget(m_objectSourceComboBox);
-	connect(m_objectSourceComboBox, QOverload<int>::of(&QComboBox::currentIndexChanged), [=](const int value) { updateModelFromCookedWidget(value, Qt::UserRole+1); updateCookedTripletParameters(m_x26View->currentIndex()); } );
+	connect(m_objectSourceComboBox, QOverload<int>::of(&QComboBox::currentIndexChanged), [=](const int value) { updateModelFromCookedWidget(value, Qt::UserRole+1); updateAllCookedTripletWidgets(m_x26View->currentIndex()); } );
 
 	// Object required at which levels
 	m_objectRequiredAtLevelsComboBox = new QComboBox;
@@ -253,13 +307,15 @@ X26DockWidget::X26DockWidget(TeletextWidget *parent): QDockWidget(parent)
 	// Invoke Local Objects
 	QHBoxLayout *invokeLocalObjectLayout = new QHBoxLayout;
 
-	invokeLocalObjectLayout->addWidget(new QLabel(tr("Designation")));
+	m_invokeLocalObjectDesignationCodeLabel = new QLabel(tr("Designation"));
+	invokeLocalObjectLayout->addWidget(m_invokeLocalObjectDesignationCodeLabel);
 	m_invokeLocalObjectDesignationCodeSpinBox = new QSpinBox;
 	m_invokeLocalObjectDesignationCodeSpinBox->setMaximum(15);
 	invokeLocalObjectLayout->addWidget(m_invokeLocalObjectDesignationCodeSpinBox);
 	connect(m_invokeLocalObjectDesignationCodeSpinBox, QOverload<int>::of(&QSpinBox::valueChanged), this, [=](const int value) { updateModelFromCookedWidget(value, Qt::UserRole+2); } );
 
-	invokeLocalObjectLayout->addWidget(new QLabel(tr("Triplet")));
+	m_invokeLocalObjectTripletNumberLabel = new QLabel(tr("Triplet"));
+	invokeLocalObjectLayout->addWidget(m_invokeLocalObjectTripletNumberLabel);
 	m_invokeLocalObjectTripletNumberSpinBox = new QSpinBox;
 	m_invokeLocalObjectTripletNumberSpinBox->setMaximum(12);
 	invokeLocalObjectLayout->addWidget(m_invokeLocalObjectTripletNumberSpinBox);
@@ -410,60 +466,70 @@ X26DockWidget::X26DockWidget(TeletextWidget *parent): QDockWidget(parent)
 	m_tripletParameterStackedLayout->addWidget(blankWidget);
 
 	// Index 1
+	colourAndRowLayout->setContentsMargins(0, 0, 0, 0);
 	QWidget *colourAndRowWidget = new QWidget;
 	colourAndRowWidget->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Fixed);
 	colourAndRowWidget->setLayout(colourAndRowLayout);
 	m_tripletParameterStackedLayout->addWidget(colourAndRowWidget);
 
 	// Index 2
+	characterCodeLayout->setContentsMargins(0, 0, 0, 0);
 	QWidget *characterCodeWidget = new QWidget;
 	characterCodeWidget->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Fixed);
 	characterCodeWidget->setLayout(characterCodeLayout);
 	m_tripletParameterStackedLayout->addWidget(characterCodeWidget);
 
 	// Index 3
+	flashModeRateLayout->setContentsMargins(0, 0, 0, 0);
 	QWidget *flashModeRateWidget = new QWidget;
 	flashModeRateWidget->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Fixed);
 	flashModeRateWidget->setLayout(flashModeRateLayout);
 	m_tripletParameterStackedLayout->addWidget(flashModeRateWidget);
 
 	// Index 4
+	displayAttributesLayout->setContentsMargins(0, 0, 0, 0);
 	QWidget *displayAttributesWidget = new QWidget;
 	displayAttributesWidget->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Fixed);
 	displayAttributesWidget->setLayout(displayAttributesLayout);
 	m_tripletParameterStackedLayout->addWidget(displayAttributesWidget);
 
 	// Index 5
+	invokeObjectLayout->setContentsMargins(0, 0, 0, 0);
 	QWidget *invokeObjectWidget = new QWidget;
 	invokeObjectWidget->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Fixed);
 	invokeObjectWidget->setLayout(invokeObjectLayout);
 	m_tripletParameterStackedLayout->addWidget(invokeObjectWidget);
 
 	// Index 6
+	DRCSModeLayout->setContentsMargins(0, 0, 0, 0);
 	QWidget *DRCSModeWidget = new QWidget;
 	DRCSModeWidget->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Fixed);
 	DRCSModeWidget->setLayout(DRCSModeLayout);
 	m_tripletParameterStackedLayout->addWidget(DRCSModeWidget);
 
 	// Index 7
+	DRCSCharacterLayout->setContentsMargins(0, 0, 0, 0);
 	QWidget *DRCSCharacterWidget = new QWidget;
 	DRCSCharacterWidget->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Fixed);
 	DRCSCharacterWidget->setLayout(DRCSCharacterLayout);
 	m_tripletParameterStackedLayout->addWidget(DRCSCharacterWidget);
 
 	// Index 8
+	fontStyleLayout->setContentsMargins(0, 0, 0, 0);
 	QWidget *fontStyleWidget = new QWidget;
 	fontStyleWidget->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Fixed);
 	fontStyleWidget->setLayout(fontStyleLayout);
 	m_tripletParameterStackedLayout->addWidget(fontStyleWidget);
 
 	// Index 9
+	reservedPDCLayout->setContentsMargins(0, 0, 0, 0);
 	QWidget *reservedPDCWidget = new QWidget;
 	reservedPDCWidget->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Fixed);
 	reservedPDCWidget->setLayout(reservedPDCLayout);
 	m_tripletParameterStackedLayout->addWidget(reservedPDCWidget);
 
 	// Index 10
+	terminationMarkerLayout->setContentsMargins(0, 0, 0, 0);
 	QWidget *terminationMarkerWidget = new QWidget;
 	terminationMarkerWidget->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Fixed);
 	terminationMarkerWidget->setLayout(terminationMarkerLayout);
@@ -479,30 +545,41 @@ X26DockWidget::X26DockWidget(TeletextWidget *parent): QDockWidget(parent)
 	// Insert and delete widgets
 	QHBoxLayout *insertDeleteLayout = new QHBoxLayout;
 
-	m_insertPushButton = new QPushButton(tr("Insert triplet"));
-	insertDeleteLayout->addWidget(m_insertPushButton);
-	m_deletePushButton = new QPushButton(tr("Delete triplet"));
+	m_insertBeforePushButton = new QPushButton(tr("Insert before"));
+	insertDeleteLayout->addWidget(m_insertBeforePushButton);
+	m_insertBeforePushButton->setMenu(m_insertBeforeMenu);
+
+	m_insertAfterPushButton = new QPushButton(tr("Insert after"));
+	insertDeleteLayout->addWidget(m_insertAfterPushButton);
+	m_insertAfterPushButton->setMenu(m_insertAfterMenu);
+
+	m_insertCopyPushButton = new QPushButton(tr("Insert copy"));
+	insertDeleteLayout->addWidget(m_insertCopyPushButton);
+
+	m_deletePushButton = new QPushButton(tr("Delete"));
 	insertDeleteLayout->addWidget(m_deletePushButton);
 
-	connect(m_insertPushButton, &QPushButton::clicked, this, &X26DockWidget::insertTriplet);
+	connect(m_insertCopyPushButton, &QPushButton::clicked, this, &X26DockWidget::insertTripletCopy);
 	connect(m_deletePushButton, &QPushButton::clicked, this, &X26DockWidget::deleteTriplet);
 
 	x26Layout->addLayout(insertDeleteLayout);
 
+	disableTripletWidgets();
+
 	x26Widget->setLayout(x26Layout);
 	this->setWidget(x26Widget);
 
 	m_x26View->setContextMenuPolicy(Qt::CustomContextMenu);
 	connect(m_x26View, &QWidget::customContextMenuRequested, this, &X26DockWidget::customMenuRequested);
 
-	connect(m_x26View, &QAbstractItemView::clicked, this, &X26DockWidget::rowClicked);
+	connect(m_x26View->selectionModel(), &QItemSelectionModel::currentRowChanged, this, &X26DockWidget::rowSelected);
 }
 
 void X26DockWidget::keyPressEvent(QKeyEvent *event)
 {
 	switch (event->key()) {
 		case Qt::Key_Insert:
-			insertTriplet();
+			insertTripletCopy();
 			break;
 		case Qt::Key_Delete:
 			deleteTriplet();
@@ -520,161 +597,68 @@ void X26DockWidget::selectX26ListRow(int row)
 		row = m_x26Model->rowCount() - 1;
 
 	m_x26View->selectRow(row);
-	rowClicked(m_x26View->currentIndex());
+	rowSelected(m_x26View->currentIndex(), QModelIndex());
 }
 
 void X26DockWidget::loadX26List()
 {
+	disableTripletWidgets();
 	m_x26Model->setX26ListLoaded(true);
 }
 
 void X26DockWidget::unloadX26List()
 {
+	disableTripletWidgets();
 	m_x26Model->setX26ListLoaded(false);
+}
+
+void X26DockWidget::rowSelected(const QModelIndex &current, const QModelIndex &previous)
+{
+	Q_UNUSED(previous);
+
+	if (current.isValid()) {
+		updateAllRawTripletSpinBoxes(current);
+		updateAllCookedTripletWidgets(current);
+	} else
+		disableTripletWidgets();
+}
+
+void X26DockWidget::disableTripletWidgets()
+{
 	m_rawTripletAddressSpinBox->setEnabled(false);
 	m_rawTripletDataSpinBox->setEnabled(false);
 	m_rawTripletModeSpinBox->setEnabled(false);
-}
+	m_rawTripletAddressSpinBox->blockSignals(true);
+	m_rawTripletModeSpinBox->blockSignals(true);
+	m_rawTripletDataSpinBox->blockSignals(true);
+	m_rawTripletAddressSpinBox->setValue(0);
+	m_rawTripletModeSpinBox->setValue(0);
+	m_rawTripletDataSpinBox->setValue(0);
+	m_rawTripletAddressSpinBox->blockSignals(false);
+	m_rawTripletModeSpinBox->blockSignals(false);
+	m_rawTripletDataSpinBox->blockSignals(false);
 
-void X26DockWidget::rowClicked(const QModelIndex &index)
-{
-	updateAllRawTripletSpinBoxes(index);
-	updateAllCookedTripletWidgets(index);
+	m_cookedRowSpinBox->setEnabled(false);
+	m_cookedColumnSpinBox->setEnabled(false);
+	m_cookedRowSpinBox->blockSignals(true);
+	m_cookedColumnSpinBox->blockSignals(true);
+	m_cookedRowSpinBox->setValue(1);
+	m_cookedColumnSpinBox->setValue(0);
+	m_cookedRowSpinBox->blockSignals(false);
+	m_cookedColumnSpinBox->blockSignals(false);
+
+	m_cookedModePushButton->setEnabled(false);
+	m_cookedModePushButton->setText(QString());
+
+	m_tripletParameterStackedLayout->setCurrentIndex(0);
 }
 
 void X26DockWidget::updateAllCookedTripletWidgets(const QModelIndex &index)
 {
 	const int modeExt = index.model()->data(index.model()->index(index.row(), 2), Qt::EditRole).toInt();
 
-	// Find which triplettype the triplet is
-	const int oldCookedModeType = m_cookedModeTypeComboBox->currentIndex();
-	switch (modeExt) {
-		case 0x04:
-			m_cookedModeTypeComboBox->setCurrentIndex(0);
-			break;
-		case 0x00:
-		case 0x01:
-		case 0x07:
-		case 0x18:
-			m_cookedModeTypeComboBox->setCurrentIndex(1);
-			break;
-		case 0x20 ... 0x23:
-		case 0x27 ... 0x29:
-		case 0x2b ... 0x3f:
-			m_cookedModeTypeComboBox->setCurrentIndex(2);
-			break;
-		case 0x10 ... 0x13:
-		case 0x15 ... 0x17:
-			m_cookedModeTypeComboBox->setCurrentIndex(3);
-			break;
-		case 0x1f:
-			m_cookedModeTypeComboBox->setCurrentIndex(4);
-			break;
-		default:
-			m_cookedModeTypeComboBox->setCurrentIndex(5);
-	}
-
-	// If the triplettype has changed, update the triplet mode combobox
-	if (oldCookedModeType != m_cookedModeTypeComboBox->currentIndex())
-		updateCookedModeFromCookedType(-1);
-	for (int i=0; i<m_cookedModeComboBox->count(); i++)
-		if (m_cookedModeComboBox->itemData(i) == modeExt) {
-			m_cookedModeComboBox->blockSignals(true);
-			m_cookedModeComboBox->setCurrentIndex(i);
-			m_cookedModeComboBox->blockSignals(false);
-			break;
-		}
-
-	updateCookedTripletParameters(index);
-}
-
-void X26DockWidget::updateCookedModeFromCookedType(const int value)
-{
-	while (m_cookedModeComboBox->count() > 0)
-		m_cookedModeComboBox->removeItem(0);
-	// When called as a slot, "value" parameter would be the same as this currentIndex
-	switch (m_cookedModeTypeComboBox->currentIndex()) {
-		case 1:
-			m_cookedModeComboBox->addItem("select...", -1);
-			m_cookedModeComboBox->addItem("Full screen colour", 0x00);
-			m_cookedModeComboBox->addItem("Full row colour", 0x01);
-			m_cookedModeComboBox->addItem("Address row 0", 0x07);
-			m_cookedModeComboBox->addItem("DRCS mode", 0x18);
-			break;
-		case 2:
-			m_cookedModeComboBox->addItem("select...", -1);
-			m_cookedModeComboBox->addItem("Foreground colour", 0x20);
-			m_cookedModeComboBox->addItem("Background colour", 0x23);
-			m_cookedModeComboBox->addItem("Flash functions", 0x27);
-			m_cookedModeComboBox->addItem("Display attrs", 0x2c);
-			m_cookedModeComboBox->addItem("Font style L 3.5", 0x2e);
-			m_cookedModeComboBox->addItem("Mod G0 and G2", 0x28);
-			m_cookedModeComboBox->addItem("G0 character", 0x29);
-			m_cookedModeComboBox->addItem("G2 character", 0x2f);
-			m_cookedModeComboBox->addItem("G1 block mosaic", 0x21);
-			m_cookedModeComboBox->addItem("G3 at L 1.5", 0x22);
-			m_cookedModeComboBox->addItem("G3 at L 2.5", 0x2b);
-			m_cookedModeComboBox->addItem("DRCS character", 0x2d);
-			for (int i=0; i<16; i++)
-				m_cookedModeComboBox->addItem(QString("G0 diactricial ")+QString("%1").arg(i, 1, 16).toUpper(), 0x30 | i);
-			break;
-		case 3:
-			m_cookedModeComboBox->addItem("select...", -1);
-			m_cookedModeComboBox->addItem("Origin modifier", 0x10);
-			m_cookedModeComboBox->addItem("Invoke active obj", 0x11);
-			m_cookedModeComboBox->addItem("Invoke adaptive obj", 0x12);
-			m_cookedModeComboBox->addItem("Invoke passive obj", 0x13);
-			m_cookedModeComboBox->addItem("Define active obj", 0x15);
-			m_cookedModeComboBox->addItem("Define adaptive obj", 0x16);
-			m_cookedModeComboBox->addItem("Define passive obj", 0x17);
-			break;
-		case 5:
-			m_cookedModeComboBox->addItem("select...", -1);
-			m_cookedModeComboBox->addItem("Origin and Source", 0x08);
-			m_cookedModeComboBox->addItem("Month and day", 0x09);
-			m_cookedModeComboBox->addItem("Row + start hours", 0x0a);
-			m_cookedModeComboBox->addItem("Row + end hours", 0x0b);
-			m_cookedModeComboBox->addItem("Row + time offset", 0x0c);
-			m_cookedModeComboBox->addItem("Series ID and code", 0x0d);
-			m_cookedModeComboBox->addItem("Col + start/end mins", 0x26);
-			m_cookedModeComboBox->addItem("Reserved row 0x02", 0x02);
-			m_cookedModeComboBox->addItem("Reserved row 0x03", 0x03);
-			m_cookedModeComboBox->addItem("Reserved row 0x05", 0x05);
-			m_cookedModeComboBox->addItem("Reserved row 0x06", 0x06);
-			m_cookedModeComboBox->addItem("Reserved row 0x0e", 0x0e);
-			m_cookedModeComboBox->addItem("Reserved row 0x0f", 0x0f);
-			m_cookedModeComboBox->addItem("Reserved row 0x14", 0x14);
-			m_cookedModeComboBox->addItem("Reserved row 0x19", 0x19);
-			m_cookedModeComboBox->addItem("Reserved row 0x1a", 0x1a);
-			m_cookedModeComboBox->addItem("Reserved row 0x1b", 0x1b);
-			m_cookedModeComboBox->addItem("Reserved row 0x1c", 0x1c);
-			m_cookedModeComboBox->addItem("Reserved row 0x1d", 0x1d);
-			m_cookedModeComboBox->addItem("Reserved row 0x1e", 0x1e);
-			m_cookedModeComboBox->addItem("Reserved col 0x04", 0x04);
-			m_cookedModeComboBox->addItem("Reserved col 0x05", 0x05);
-			m_cookedModeComboBox->addItem("Reserved col 0x0a", 0x0a);
-			break;
-		case 0:
-			// When called as a slot the user set the combobox themself, so set the triplet mode immediately
-			if (value != -1) {
-				m_x26Model->setData(m_x26Model->index(m_x26View->currentIndex().row(), 2), 4, Qt::EditRole);
-				updateAllRawTripletSpinBoxes(m_x26View->currentIndex());
-				updateCookedTripletParameters(m_x26View->currentIndex());
-			}
-			break;
-		case 4:
-			if (value != -1) {
-				m_x26Model->setData(m_x26Model->index(m_x26View->currentIndex().row(), 2), 31, Qt::EditRole);
-				updateAllRawTripletSpinBoxes(m_x26View->currentIndex());
-				updateCookedTripletParameters(m_x26View->currentIndex());
-			}
-			break;
-	}
-}
-
-void X26DockWidget::updateCookedTripletParameters(const QModelIndex &index)
-{
-	const int modeExt = index.model()->data(index.model()->index(index.row(), 2), Qt::EditRole).toInt();
+	m_cookedModePushButton->setEnabled(true);
+	m_cookedModePushButton->setText(m_modeTripletNames.modeName(modeExt));
 
 	switch (modeExt) {
 		case 0x04: // Set active position
@@ -704,8 +688,30 @@ void X26DockWidget::updateCookedTripletParameters(const QModelIndex &index)
 		case 0x22: // G3 character at Level 1.5
 		case 0x29: // G0 character
 		case 0x2b: // G3 character at Level 2.5
-		case 0x2f ... 0x3f: // G2 character, G0 character with diacritical
+		case 0x2f: // G2 character
+		case 0x30:
+		case 0x31:
+		case 0x32:
+		case 0x33:
+		case 0x34:
+		case 0x35:
+		case 0x36:
+		case 0x37:
+		case 0x38:
+		case 0x39:
+		case 0x3a:
+		case 0x3b:
+		case 0x3c:
+		case 0x3d:
+		case 0x3e:
+		case 0x3f: // G0 character with diacritical
 			m_characterCodeComboBox->blockSignals(true);
+			if (modeExt == 0x21)
+				m_characterListModel.setG1AndBlastCharacterSet(index.model()->data(index.model()->index(index.row(), 0), Qt::UserRole+3).toInt());
+			else if (modeExt == 0x22 || modeExt == 0x2b)
+				m_characterListModel.setCharacterSet(26);
+			else
+				m_characterListModel.setCharacterSet(index.model()->data(index.model()->index(index.row(), 0), Qt::UserRole+2).toInt());
 			m_characterCodeComboBox->setCurrentIndex(index.model()->data(index.model()->index(index.row(), 0), Qt::UserRole+1).toInt()-32);
 			m_characterCodeComboBox->blockSignals(false);
 			m_tripletParameterStackedLayout->setCurrentIndex(2);
@@ -738,8 +744,12 @@ void X26DockWidget::updateCookedTripletParameters(const QModelIndex &index)
 			m_displayAttributeUnderlineCheckBox->blockSignals(false);
 			m_tripletParameterStackedLayout->setCurrentIndex(4);
 			break;
-		case 0x11 ... 0x13: // Invoke object
-		case 0x15 ... 0x17: // Define object
+		case 0x11: // Invoke Active Object
+		case 0x12: // Invoke Adaptive Object
+		case 0x13: // Invoke Passive Object
+		case 0x15: // Define Active Object
+		case 0x16: // Define Adaptive Object
+		case 0x17: // Define Passive Object
 			if (index.model()->data(index.model()->index(index.row(), 1), Qt::UserRole).toInt() & 0x04) {
 				// Define object
 				m_objectSourceComboBox->setVisible(false);
@@ -756,14 +766,22 @@ void X26DockWidget::updateCookedTripletParameters(const QModelIndex &index)
 			// BUG we're only dealing with Local Object Definitions at the moment!
 			if (index.model()->data(index.model()->index(index.row(), 0), Qt::UserRole+1).toInt() == 0 || (index.model()->data(index.model()->index(index.row(), 1), Qt::UserRole).toInt() & 0x04)) {
 //			if (triplet.objectSource() == X26Triplet::LocalObjectSource) {
+				const bool tripletLocationWidgetsVisible = (modeExt & 0x04) != 0x04;
+
+				m_invokeLocalObjectDesignationCodeLabel->setVisible(tripletLocationWidgetsVisible);
+				m_invokeLocalObjectDesignationCodeSpinBox->setVisible(tripletLocationWidgetsVisible);
+				m_invokeLocalObjectTripletNumberLabel->setVisible(tripletLocationWidgetsVisible);
+				m_invokeLocalObjectTripletNumberSpinBox->setVisible(tripletLocationWidgetsVisible);
 				m_objectSourceComboBox->setCurrentIndex(0);
 				m_invokeObjectSourceStackedLayout->setCurrentIndex(0);
-				m_invokeLocalObjectDesignationCodeSpinBox->blockSignals(true);
-				m_invokeLocalObjectTripletNumberSpinBox->blockSignals(true);
-				m_invokeLocalObjectDesignationCodeSpinBox->setValue(index.model()->data(index.model()->index(index.row(), 0), Qt::UserRole+2).toInt());
-				m_invokeLocalObjectTripletNumberSpinBox->setValue(index.model()->data(index.model()->index(index.row(), 0), Qt::UserRole+3).toInt());
-				m_invokeLocalObjectDesignationCodeSpinBox->blockSignals(false);
-				m_invokeLocalObjectTripletNumberSpinBox->blockSignals(false);
+				if (tripletLocationWidgetsVisible) {
+					m_invokeLocalObjectDesignationCodeSpinBox->blockSignals(true);
+					m_invokeLocalObjectTripletNumberSpinBox->blockSignals(true);
+					m_invokeLocalObjectDesignationCodeSpinBox->setValue(index.model()->data(index.model()->index(index.row(), 0), Qt::UserRole+2).toInt());
+					m_invokeLocalObjectTripletNumberSpinBox->setValue(index.model()->data(index.model()->index(index.row(), 0), Qt::UserRole+3).toInt());
+					m_invokeLocalObjectDesignationCodeSpinBox->blockSignals(false);
+					m_invokeLocalObjectTripletNumberSpinBox->blockSignals(false);
+				}
 			} else { // if (triplet.objectSource() != X26Triplet::IllegalObjectSource) {
 				m_objectSourceComboBox->setCurrentIndex(index.model()->data(index.model()->index(index.row(), 0), Qt::UserRole+1).toInt());
 				m_invokeObjectSourceStackedLayout->setCurrentIndex(1);
@@ -849,28 +867,36 @@ void X26DockWidget::updateCookedTripletParameters(const QModelIndex &index)
 	// Now deal with cooked row and column spinboxes
 	m_cookedRowSpinBox->blockSignals(true);
 	m_cookedColumnSpinBox->blockSignals(true);
-	QVariant rowVariant = index.model()->data(index.model()->index(index.row(), 0), Qt::EditRole);
+	const QVariant rowVariant = index.model()->data(index.model()->index(index.row(), 0), Qt::EditRole);
 	if (rowVariant.isNull()) {
 		m_cookedRowSpinBox->setEnabled(false);
 		m_cookedRowSpinBox->setValue(0);
+		m_cookedRowSpinBox->setPrefix("");
 	} else {
 		m_cookedRowSpinBox->setEnabled(true);
-		if (index.model()->data(index.model()->index(index.row(), 2), Qt::EditRole) == 0x10)
+		if (modeExt == 0x10) {
 			m_cookedRowSpinBox->setRange(0, 23);
-		else
+			m_cookedRowSpinBox->setPrefix("+");
+		} else {
 			m_cookedRowSpinBox->setRange(1, 24);
+			m_cookedRowSpinBox->setPrefix("");
+		}
 		m_cookedRowSpinBox->setValue(rowVariant.toInt());
 	}
-	QVariant columnVariant = index.model()->data(index.model()->index(index.row(), 1), Qt::EditRole);
+	const QVariant columnVariant = index.model()->data(index.model()->index(index.row(), 1), Qt::EditRole);
 	if (columnVariant.isNull()) {
 		m_cookedColumnSpinBox->setEnabled(false);
 		m_cookedColumnSpinBox->setValue(0);
+		m_cookedColumnSpinBox->setPrefix("");
 	} else {
 		m_cookedColumnSpinBox->setEnabled(true);
-		if (index.model()->data(index.model()->index(index.row(), 2), Qt::EditRole) == 0x10)
+		if (modeExt == 0x10) {
 			m_cookedColumnSpinBox->setMaximum(71);
-		else
+			m_cookedColumnSpinBox->setPrefix("+");
+		} else {
 			m_cookedColumnSpinBox->setMaximum(39);
+			m_cookedColumnSpinBox->setPrefix("");
+		}
 		m_cookedColumnSpinBox->setValue(columnVariant.toInt());
 	}
 	m_cookedRowSpinBox->blockSignals(false);
@@ -945,35 +971,97 @@ void X26DockWidget::cookedColumnSpinBoxChanged(const int value)
 	updateAllRawTripletSpinBoxes(m_x26View->currentIndex());
 }
 
-void X26DockWidget::cookedModeComboBoxChanged(const int value)
+void X26DockWidget::cookedModeMenuSelected(const int value)
 {
 	if (!m_x26View->currentIndex().isValid())
 		return;
 
-	// Avoid "select..."
-	if (m_cookedModeComboBox->itemData(value) == -1)
-		return;
-
-	m_x26Model->setData(m_x26Model->index(m_x26View->currentIndex().row(), 2), m_cookedModeComboBox->itemData(value).toInt(), Qt::EditRole);
+	m_x26Model->setData(m_x26Model->index(m_x26View->currentIndex().row(), 2), value, Qt::EditRole);
 
 	updateAllRawTripletSpinBoxes(m_x26View->currentIndex());
-	updateCookedTripletParameters(m_x26View->currentIndex());
+	updateAllCookedTripletWidgets(m_x26View->currentIndex());
 }
 
+
 void X26DockWidget::updateModelFromCookedWidget(const int value, const int role)
 {
 	m_x26Model->setData(m_x26Model->index(m_x26View->currentIndex().row(), 0), value, role);
 	updateAllRawTripletSpinBoxes(m_x26View->currentIndex());
 }
 
-void X26DockWidget::insertTriplet()
+void X26DockWidget::insertTriplet(int modeExt, bool after)
+{
+	QModelIndex index = m_x26View->currentIndex();
+
+	if (index.isValid())
+		insertTriplet(modeExt, index.row()+after);
+	else
+		insertTriplet(modeExt);
+}
+
+void X26DockWidget::insertTriplet(int modeExt, int row)
+{
+	X26Triplet newTriplet(modeExt < 0x20 ? 41 : 0, modeExt & 0x1f, 0);
+
+	if (row != -1) {
+		QModelIndex index = m_x26View->currentIndex();
+
+		if (index.isValid()) {
+			// If we're inserting a column triplet next to another column triplet,
+			// duplicate the column number
+			// Avoid the PDC and reserved mode triplets
+			if (modeExt >= 0x20 && modeExt != 0x24 && modeExt != 0x25 && modeExt != 0x26 && modeExt != 0x2a) {
+				const int existingTripletModeExt = index.model()->data(index.model()->index(index.row(), 2), Qt::EditRole).toInt();
+
+				if (existingTripletModeExt >= 0x20 && existingTripletModeExt != 0x24 && existingTripletModeExt != 0x25 && existingTripletModeExt != 0x26 && existingTripletModeExt != 0x2a)
+					newTriplet.setAddress(index.model()->data(index.model()->index(index.row(), 0), Qt::UserRole).toInt());
+			}
+			// If we're inserting a Set Active Position or Full Row Colour triplet,
+			// look for a previous row setting triplet and set this one to the row after
+			if (modeExt == 0x04 || modeExt == 0x01) {
+				for (int i=row-1; i>=0; i--) {
+					const int scanTripletModeExt = index.model()->data(index.model()->index(i, 2), Qt::EditRole).toInt();
+
+					if (scanTripletModeExt == 0x04 || scanTripletModeExt == 0x01) {
+						const int scanActivePositionRow = index.model()->data(index.model()->index(i, 0), Qt::EditRole).toInt()+1;
+
+						if (scanActivePositionRow < 25)
+							newTriplet.setAddressRow(scanActivePositionRow);
+						else
+							newTriplet.setAddressRow(24);
+
+						break;
+					}
+				}
+			}
+		}
+	} else
+		row = 0;
+
+	// For character triplets, ensure Data is not reserved
+	if (modeExt == 0x21 || modeExt == 0x22 || modeExt == 0x29 || modeExt == 0x2b || modeExt >= 0x2f)
+		newTriplet.setData(0x20);
+	// For Address Row 0, set Address
+	if (modeExt == 0x07)
+		newTriplet.setAddress(63);
+	// For Termination Marker, set Address and Mode
+	if (modeExt == 0x1f) {
+		newTriplet.setAddress(63);
+		newTriplet.setData(7);
+	}
+
+	m_x26Model->insertRows(row, 1, QModelIndex(), newTriplet);
+}
+
+void X26DockWidget::insertTripletCopy()
 {
 	QModelIndex index = m_x26View->currentIndex();
 
 	if (index.isValid())
 		m_x26Model->insertRow(index.row(), QModelIndex());
 	else
-		m_x26Model->insertFirstRow();
+		// No existing triplet to copy, so insert a Termination Marker
+		m_x26Model->insertRows(0, 1, QModelIndex(), X26Triplet(63, 31, 7));
 }
 
 void X26DockWidget::deleteTriplet()
@@ -985,17 +1073,161 @@ void X26DockWidget::deleteTriplet()
 
 void X26DockWidget::customMenuRequested(QPoint pos)
 {
+	QMenu *customMenu = nullptr;
+
 	QModelIndex index = m_x26View->indexAt(pos);
 
-	QMenu *menu = new QMenu(this);
-
-	QAction *insertAct = new QAction("Insert triplet", this);
-	menu->addAction(insertAct);
-	connect(insertAct, &QAction::triggered, this, &X26DockWidget::insertTriplet);
 	if (index.isValid()) {
+		const int modeExt = index.model()->data(index.model()->index(index.row(), 2), Qt::EditRole).toInt();
+
+		switch (modeExt) {
+			case 0x11:
+			case 0x12:
+			case 0x13: {  // Invoke Object
+				QMenu *localDefMenu;
+				const QList objectList = m_parentMainWidget->document()->currentSubPage()->enhancements()->objects(modeExt - 0x11);
+
+				for (int i=0; i<objectList.size(); i++) {
+					// Messy way to create submenu only if definitions exist
+					if (i == 0) {
+						customMenu = new QMenu(this);
+						localDefMenu = customMenu->addMenu(tr("Local definition"));
+					}
+
+					const int d = objectList.at(i) / 13;
+					const int t = objectList.at(i) % 13;
+					QAction *action = localDefMenu->addAction(QString("d%1 t%2").arg(d).arg(t));
+					connect(action, &QAction::triggered, [=]() {
+						updateModelFromCookedWidget(0, Qt::UserRole+1);
+						updateModelFromCookedWidget(d, Qt::UserRole+2);
+						updateModelFromCookedWidget(t, Qt::UserRole+3);
+						updateAllCookedTripletWidgets(index);
+					} );
+				}
+			} break;
+			case 0x01: // Full Row colour
+			case 0x07: // Address row 0
+				customMenu = new TripletCLUTQMenu(true, this);
+
+				connect(static_cast<TripletCLUTQMenu *>(customMenu)->action(32), &QAction::triggered, [=]() { updateModelFromCookedWidget(0, Qt::UserRole+2); updateAllCookedTripletWidgets(index); });
+				connect(static_cast<TripletCLUTQMenu *>(customMenu)->action(33), &QAction::triggered, [=]() { updateModelFromCookedWidget(1, Qt::UserRole+2); updateAllCookedTripletWidgets(index); });
+				// fall-through
+			case 0x00: // Full Screen colour
+			case 0x20: // Foreground colour
+			case 0x23: // Background colour
+				if (!customMenu)
+					customMenu = new TripletCLUTQMenu(false, this);
+
+				for (int i=0; i<32; i++) {
+					static_cast<TripletCLUTQMenu *>(customMenu)->setColour(i, m_parentMainWidget->document()->currentSubPage()->CLUTtoQColor(i));
+					connect(static_cast<TripletCLUTQMenu *>(customMenu)->action(i), &QAction::triggered, [=]() { updateModelFromCookedWidget(i, Qt::UserRole+1); updateAllCookedTripletWidgets(index); });
+				}
+				break;
+			case 0x27: // Additional flash functions
+				customMenu = new TripletFlashQMenu(this);
+
+				static_cast<TripletFlashQMenu *>(customMenu)->setModeChecked(index.model()->data(index.model()->index(index.row(), 0), Qt::UserRole+1).toInt());
+				static_cast<TripletFlashQMenu *>(customMenu)->setRatePhaseChecked(index.model()->data(index.model()->index(index.row(), 0), Qt::UserRole+2).toInt());
+
+				for (int i=0; i<4; i++)
+					connect(static_cast<TripletFlashQMenu *>(customMenu)->modeAction(i), &QAction::triggered, [=]() { updateModelFromCookedWidget(i, Qt::UserRole+1); updateAllCookedTripletWidgets(index); });
+				for (int i=0; i<6; i++)
+					connect(static_cast<TripletFlashQMenu *>(customMenu)->ratePhaseAction(i), &QAction::triggered, [=]() { updateModelFromCookedWidget(i, Qt::UserRole+2); updateAllCookedTripletWidgets(index); });
+				break;
+			case 0x2c: // Display attributes
+				customMenu = new TripletDisplayAttrsQMenu(this);
+
+				static_cast<TripletDisplayAttrsQMenu *>(customMenu)->setTextSizeChecked(index.model()->data(index.model()->index(index.row(), 0), Qt::UserRole+1).toInt());
+				for (int i=0; i<4; i++) {
+					static_cast<TripletDisplayAttrsQMenu *>(customMenu)->setOtherAttrChecked(i, index.model()->data(index.model()->index(index.row(), 0), Qt::UserRole+i+2).toBool());
+					connect(static_cast<TripletDisplayAttrsQMenu *>(customMenu)->textSizeAction(i), &QAction::triggered, [=]() { updateModelFromCookedWidget(i, Qt::UserRole+1); updateAllCookedTripletWidgets(index); });
+					connect(static_cast<TripletDisplayAttrsQMenu *>(customMenu)->otherAttrAction(i), &QAction::toggled, [=](const int checked) { updateModelFromCookedWidget(checked, Qt::UserRole+i+2); updateAllCookedTripletWidgets(index); });
+				}
+				break;
+			case 0x2e: // Font style
+				customMenu = new TripletFontStyleQMenu(this);
+
+				for (int i=0; i<3; i++) {
+					static_cast<TripletFontStyleQMenu *>(customMenu)->setStyleChecked(i, index.model()->data(index.model()->index(index.row(), 0), Qt::UserRole+i+1).toBool());
+					connect(static_cast<TripletFontStyleQMenu *>(customMenu)->styleAction(i), &QAction::toggled, [=](const int checked) { updateModelFromCookedWidget(checked, Qt::UserRole+i+1); updateAllCookedTripletWidgets(index); });
+				}
+				static_cast<TripletFontStyleQMenu *>(customMenu)->setRowsChecked(index.model()->data(index.model()->index(index.row(), 0), Qt::UserRole+4).toInt());
+				for (int i=0; i<8; i++)
+					connect(static_cast<TripletFontStyleQMenu *>(customMenu)->rowsAction(i), &QAction::triggered, [=]() { updateModelFromCookedWidget(i, Qt::UserRole+4); updateAllCookedTripletWidgets(index); });
+				break;
+			case 0x21: // G1 mosaic character
+				customMenu = new TripletCharacterQMenu(m_x26Model->data(index.model()->index(index.row(), 2), Qt::UserRole+3).toInt(), true, this);
+				// fall-through
+			case 0x22: // G3 mosaic character at level 1.5
+			case 0x2b: // G3 mosaic character at level >=2.5
+			case 0x29: // G0 character
+			case 0x2f: // G2 character
+			case 0x30:
+			case 0x31:
+			case 0x32:
+			case 0x33:
+			case 0x34:
+			case 0x35:
+			case 0x36:
+			case 0x37:
+			case 0x38:
+			case 0x39:
+			case 0x3a:
+			case 0x3b:
+			case 0x3c:
+			case 0x3d:
+			case 0x3e:
+			case 0x3f: // G0 character with diacritical
+				if (!customMenu)
+					customMenu = new TripletCharacterQMenu(m_x26Model->data(index.model()->index(index.row(), 2), Qt::UserRole+2).toInt(), false, this);
+
+				for (int i=0; i<96; i++)
+					connect(static_cast<TripletCharacterQMenu *>(customMenu)->action(i), &QAction::triggered, [=]() { updateModelFromCookedWidget(i+32, Qt::UserRole+1); updateAllCookedTripletWidgets(index); });
+				break;
+		}
+
+		if (customMenu)
+			customMenu->addSeparator();
+		else
+			customMenu = new QMenu(this);
+
+		TripletModeQMenu *modeChangeMenu = new TripletModeQMenu(this);
+		modeChangeMenu->setTitle(tr("Change triplet mode"));
+		customMenu->addMenu(modeChangeMenu);
+
+		customMenu->addSeparator();
+
+		TripletModeQMenu *insertBeforeQMenu = new TripletModeQMenu(this);
+		insertBeforeQMenu->setTitle(tr("Insert before"));
+		customMenu->addMenu(insertBeforeQMenu);
+
+		TripletModeQMenu *insertAfterQMenu = new TripletModeQMenu(this);
+		insertAfterQMenu->setTitle(tr("Insert after"));
+		customMenu->addMenu(insertAfterQMenu);
+
+		for (int i=0; i<64; i++) {
+			connect(static_cast<TripletModeQMenu *>(modeChangeMenu)->action(i), &QAction::triggered, [=]() { cookedModeMenuSelected(i); });
+			connect(static_cast<TripletModeQMenu *>(insertBeforeQMenu)->action(i), &QAction::triggered, [=]() { insertTriplet(i, false); });
+			connect(static_cast<TripletModeQMenu *>(insertAfterQMenu)->action(i), &QAction::triggered, [=]() { insertTriplet(i, true); });
+		}
+
+		QAction *insertCopyAct = new QAction(tr("Insert copy"), this);
+		customMenu->addAction(insertCopyAct);
+		connect(insertCopyAct, &QAction::triggered, this, &X26DockWidget::insertTripletCopy);
+
 		QAction *deleteAct = new QAction("Delete triplet", this);
-		menu->addAction(deleteAct);
+		customMenu->addAction(deleteAct);
 		connect(deleteAct, &QAction::triggered, this, &X26DockWidget::deleteTriplet);
+	} else {
+		customMenu = new QMenu(this);
+
+		TripletModeQMenu *appendModeMenu = new TripletModeQMenu(this);
+		appendModeMenu->setTitle(tr("Append"));
+		customMenu->addMenu(appendModeMenu);
+
+		for (int i=0; i<64; i++)
+			connect(static_cast<TripletModeQMenu *>(appendModeMenu)->action(i), &QAction::triggered, [=]() { insertTriplet(i, m_x26Model->rowCount()); });
 	}
-	menu->popup(m_x26View->viewport()->mapToGlobal(pos));
+
+	customMenu->popup(m_x26View->viewport()->mapToGlobal(pos));
 }

src/qteletextmaker/x26dockwidget.h

@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2020, 2021 Gavin MacGregor
+ * Copyright (C) 2020-2024 Gavin MacGregor
  *
  * This file is part of QTeletextMaker.
  *
@@ -20,10 +20,13 @@
 #ifndef X26DOCKWIDGET_H
 #define X26DOCKWIDGET_H
 
+#include <QAbstractListModel>
 #include <QCheckBox>
 #include <QComboBox>
 #include <QDockWidget>
 #include <QGroupBox>
+#include <QLabel>
+#include <QMenu>
 #include <QPushButton>
 #include <QRadioButton>
 #include <QSpinBox>
@@ -31,8 +34,28 @@
 #include <QTableView>
 
 #include "mainwidget.h"
+#include "render.h"
+#include "x26menus.h"
 #include "x26model.h"
 
+class CharacterListModel : public QAbstractListModel
+{
+	Q_OBJECT
+
+public:
+	CharacterListModel(QObject *parent = 0);
+
+	int rowCount(const QModelIndex &parent = QModelIndex()) const override;
+	QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const override;
+	void setCharacterSet(int characterSet);
+	void setG1AndBlastCharacterSet(int characterSet);
+
+private:
+	TeletextFontBitmap m_fontBitmap;
+	int m_characterSet;
+	bool m_mosaic;
+};
+
 class X26DockWidget : public QDockWidget
 {
 	Q_OBJECT
@@ -41,35 +64,36 @@ public:
 	X26DockWidget(TeletextWidget *parent);
 
 public slots:
-	void insertTriplet();
+	void insertTriplet(int modeExt, bool after);
+	void insertTriplet(int modeExt, int row = -1);
+	void insertTripletCopy();
 	void deleteTriplet();
 	void customMenuRequested(QPoint pos);
 	void loadX26List();
 	void unloadX26List();
-	void rowClicked(const QModelIndex &);
-	void updateAllRawTripletSpinBoxes(const QModelIndex &);
-	void updateRawTripletDataSpinBox(const QModelIndex &);
-	void updateAllCookedTripletWidgets(const QModelIndex &);
-	void updateCookedModeFromCookedType(const int);
-	void updateCookedTripletParameters(const QModelIndex &);
-	void rawTripletAddressSpinBoxChanged(int);
-	void rawTripletModeSpinBoxChanged(int);
-	void rawTripletDataSpinBoxChanged(int);
-	void cookedRowSpinBoxChanged(const int);
-	void cookedColumnSpinBoxChanged(const int);
-	void cookedModeComboBoxChanged(const int);
-	void updateModelFromCookedWidget(const int, const int);
-	void selectX26ListRow(int);
+	void rowSelected(const QModelIndex &current, const QModelIndex &previous);
+	void updateAllRawTripletSpinBoxes(const QModelIndex &index);
+	void updateRawTripletDataSpinBox(const QModelIndex &index);
+	void updateAllCookedTripletWidgets(const QModelIndex & index);
+	void rawTripletAddressSpinBoxChanged(int value);
+	void rawTripletModeSpinBoxChanged(int value);
+	void rawTripletDataSpinBoxChanged(int value);
+	void cookedRowSpinBoxChanged(const int value);
+	void cookedColumnSpinBoxChanged(const int value);
+	void cookedModeMenuSelected(const int value);
+	void updateModelFromCookedWidget(const int value, const int role);
+	void selectX26ListRow(int row);
 
 protected:
 	void keyPressEvent(QKeyEvent *event) override;
+	CharacterListModel m_characterListModel;
 
 private:
 	QTableView *m_x26View;
 	X26Model *m_x26Model;
-	QComboBox *m_cookedModeTypeComboBox;
 	QSpinBox *m_cookedRowSpinBox, *m_cookedColumnSpinBox;
-	QComboBox *m_cookedModeComboBox;
+	QMenu *m_cookedModeMenu, *m_insertBeforeMenu, *m_insertAfterMenu;
+	QPushButton *m_cookedModePushButton;
 	QSpinBox *m_rawTripletAddressSpinBox, *m_rawTripletModeSpinBox, *m_rawTripletDataSpinBox;
 	QStackedLayout *m_rawOrCookedStackedLayout;
 	QComboBox *m_colourComboBox;
@@ -79,6 +103,7 @@ private:
 	QComboBox *m_textSizeComboBox;
 	QCheckBox *m_displayAttributeBoxingCheckBox, *m_displayAttributeConcealCheckBox, *m_displayAttributeInvertCheckBox, *m_displayAttributeUnderlineCheckBox;
 	QComboBox *m_objectSourceComboBox, *m_objectRequiredAtLevelsComboBox;
+	QLabel *m_invokeLocalObjectDesignationCodeLabel, *m_invokeLocalObjectTripletNumberLabel;
 	QSpinBox *m_invokeLocalObjectDesignationCodeSpinBox, *m_invokeLocalObjectTripletNumberSpinBox;
 	QSpinBox *m_invokePOPSubPageSpinBox, *m_invokePOPPacketNumberSpinBox;
 	QComboBox *m_invokePOPTripletNumberComboBox, *m_invokePOPPointerBitsComboBox;
@@ -93,9 +118,14 @@ private:
 	QSpinBox *m_reservedPDCSpinBox;
 	QComboBox *m_terminationMarkerPageTypeComboBox;
 	QCheckBox *m_terminationMarkerMoreFollowsCheckBox;
-	QPushButton *m_insertPushButton, *m_deletePushButton;
+	QPushButton *m_insertBeforePushButton, *m_insertAfterPushButton, *m_insertCopyPushButton, *m_deletePushButton;
+
+	ModeTripletNames m_modeTripletNames;
 
 	TeletextWidget *m_parentMainWidget;
+
+	void disableTripletWidgets();
+
 };
 
 #endif

src/qteletextmaker/x26menus.cpp

@@ -0,0 +1,251 @@
+/*
+ * Copyright (C) 2020-2024 Gavin MacGregor
+ *
+ * This file is part of QTeletextMaker.
+ *
+ * QTeletextMaker is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * QTeletextMaker is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with QTeletextMaker.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include "x26menus.h"
+
+#include <QActionGroup>
+#include <QColor>
+#include <QIcon>
+#include <QMenu>
+#include <QPixmap>
+#include <QString>
+
+#include "render.h"
+
+TripletModeQMenu::TripletModeQMenu(QWidget *parent): QMenu(parent)
+{
+	addModeAction(this, 0x04);
+
+	QMenu *rowTripletSubMenu = this->addMenu(tr("Row triplet"));
+	addModeAction(rowTripletSubMenu, 0x00);
+	addModeAction(rowTripletSubMenu, 0x01);
+	addModeAction(rowTripletSubMenu, 0x07);
+	addModeAction(rowTripletSubMenu, 0x18);
+
+	QMenu *columnTripletSubMenu = this->addMenu(tr("Column triplet"));
+	addModeAction(columnTripletSubMenu, 0x20);
+	addModeAction(columnTripletSubMenu, 0x23);
+	addModeAction(columnTripletSubMenu, 0x27);
+	addModeAction(columnTripletSubMenu, 0x2c);
+	addModeAction(columnTripletSubMenu, 0x2e);
+	addModeAction(columnTripletSubMenu, 0x28);
+	columnTripletSubMenu->addSeparator();
+	addModeAction(columnTripletSubMenu, 0x29);
+	addModeAction(columnTripletSubMenu, 0x2f);
+	addModeAction(columnTripletSubMenu, 0x21);
+	addModeAction(columnTripletSubMenu, 0x22);
+	addModeAction(columnTripletSubMenu, 0x2b);
+	addModeAction(columnTripletSubMenu, 0x2d);
+
+	QMenu *diacriticalSubMenu = columnTripletSubMenu->addMenu(tr("G0 diacritical"));
+	for (int i=0; i<16; i++)
+		addModeAction(diacriticalSubMenu, 0x30 + i);
+
+	QMenu *objectSubMenu = this->addMenu(tr("Object"));
+	addModeAction(objectSubMenu, 0x10);
+	addModeAction(objectSubMenu, 0x11);
+	addModeAction(objectSubMenu, 0x12);
+	addModeAction(objectSubMenu, 0x13);
+	addModeAction(objectSubMenu, 0x15);
+	addModeAction(objectSubMenu, 0x16);
+	addModeAction(objectSubMenu, 0x17);
+	addModeAction(this, 0x1f);
+	this->addSeparator();
+
+	QMenu *pdcSubMenu = this->addMenu(tr("PDC/reserved"));
+	addModeAction(pdcSubMenu, 0x08);
+	addModeAction(pdcSubMenu, 0x09);
+	addModeAction(pdcSubMenu, 0x0a);
+	addModeAction(pdcSubMenu, 0x0b);
+	addModeAction(pdcSubMenu, 0x0c);
+	addModeAction(pdcSubMenu, 0x0d);
+	addModeAction(pdcSubMenu, 0x26);
+
+	QMenu *reservedRowSubMenu = pdcSubMenu->addMenu(tr("Reserved row"));
+	addModeAction(reservedRowSubMenu, 0x02);
+	addModeAction(reservedRowSubMenu, 0x03);
+	addModeAction(reservedRowSubMenu, 0x05);
+	addModeAction(reservedRowSubMenu, 0x06);
+	addModeAction(reservedRowSubMenu, 0x0e);
+	addModeAction(reservedRowSubMenu, 0x0f);
+	addModeAction(reservedRowSubMenu, 0x14);
+	addModeAction(reservedRowSubMenu, 0x19);
+	addModeAction(reservedRowSubMenu, 0x1a);
+	addModeAction(reservedRowSubMenu, 0x1b);
+	addModeAction(reservedRowSubMenu, 0x1c);
+	addModeAction(reservedRowSubMenu, 0x1d);
+	addModeAction(reservedRowSubMenu, 0x1e);
+
+	QMenu *reservedColumnSubMenu = pdcSubMenu->addMenu(tr("Reserved column"));
+	addModeAction(reservedColumnSubMenu, 0x24);
+	addModeAction(reservedColumnSubMenu, 0x25);
+	addModeAction(reservedColumnSubMenu, 0x2a);
+}
+
+void TripletModeQMenu::addModeAction(QMenu *menu, int mode)
+{
+	m_actions[mode] = menu->addAction(m_modeTripletNames.modeName(mode));
+}
+
+
+TripletCLUTQMenu::TripletCLUTQMenu(bool rows, QWidget *parent): QMenu(parent)
+{
+	QMenu *clut[4];
+
+	for (int c=0; c<4; c++) {
+		clut[c] = this->addMenu(QString("CLUT %1").arg(c));
+
+		for (int e=0; e<8; e++)
+			m_actions[c*8+e] = clut[c]->addAction(QString("CLUT %1:%2").arg(c).arg(e));
+	}
+
+	if (rows) {
+		m_actions[32] = this->addAction(tr("This row only"));
+		m_actions[33] = this->addAction(tr("Down to bottom"));
+	}
+}
+
+void TripletCLUTQMenu::setColour(int i, QColor c)
+{
+	QPixmap menuColour(32, 32); // Should get downscaled to the menu text size
+
+	menuColour.fill(c);
+	m_actions[i]->setIcon(QIcon(menuColour));
+}
+
+
+TripletCharacterQMenu::TripletCharacterQMenu(int charSet, bool mosaic, QWidget *parent): QMenu(parent)
+{
+	QMenu *charRange[6];
+
+	for (int r=0; r<6; r++) {
+		charRange[r] = this->addMenu(QString("0x%010-0x%01f").arg(r+2));
+
+		const int charSetInColumn = (mosaic && ((r & 0x2) == 0)) ? 24 : charSet;
+
+		for (int c=0; c<16; c++)
+			m_actions[r*16+c] = charRange[r]->addAction(QIcon(m_fontBitmap.charBitmap(r*16+c+32, charSetInColumn)), QString("0x%1").arg(r*16+c+32, 2, 16, QChar('0')));
+	}
+}
+
+
+TripletFlashQMenu::TripletFlashQMenu(QWidget *parent): QMenu(parent)
+{
+	QMenu *flashModeMenu = this->addMenu(tr("Flash mode"));
+	m_actions[0] = flashModeMenu->addAction(tr("Steady"));
+	m_actions[1] = flashModeMenu->addAction(tr("Normal"));
+	m_actions[2] = flashModeMenu->addAction(tr("Invert"));
+	m_actions[3] = flashModeMenu->addAction(tr("Adjacent CLUT"));
+	m_modeActionGroup = new QActionGroup(this);
+	for (int i=0; i<4; i++) {
+		m_actions[i]->setCheckable(true);
+		m_modeActionGroup->addAction(m_actions[i]);
+	}
+
+	QMenu *flashRatePhaseMenu = this->addMenu(tr("Flash rate/phase"));
+	m_actions[4] = flashRatePhaseMenu->addAction(tr("Slow 1Hz"));
+	m_actions[5] = flashRatePhaseMenu->addAction(tr("Fast 2Hz phase 1"));
+	m_actions[6] = flashRatePhaseMenu->addAction(tr("Fast 2Hz phase 2"));
+	m_actions[7] = flashRatePhaseMenu->addAction(tr("Fast 2Hz phase 3"));
+	m_actions[8] = flashRatePhaseMenu->addAction(tr("Fast 2Hz inc/right"));
+	m_actions[9] = flashRatePhaseMenu->addAction(tr("Fast 2Hz dec/left"));
+	m_ratePhaseActionGroup = new QActionGroup(this);
+	for (int i=4; i<10; i++) {
+		m_actions[i]->setCheckable(true);
+		m_ratePhaseActionGroup->addAction(m_actions[i]);
+	}
+}
+
+void TripletFlashQMenu::setModeChecked(int n)
+{
+	m_actions[n]->setChecked(true);
+}
+
+void TripletFlashQMenu::setRatePhaseChecked(int n)
+{
+	m_actions[n+4]->setChecked(true);
+}
+
+
+TripletDisplayAttrsQMenu::TripletDisplayAttrsQMenu(QWidget *parent): QMenu(parent)
+{
+	QMenu *sizeMenu = this->addMenu(tr("Text size"));
+	m_actions[0] = sizeMenu->addAction(tr("Normal size"));
+	m_actions[1] = sizeMenu->addAction(tr("Double height"));
+	m_actions[2] = sizeMenu->addAction(tr("Double width"));
+	m_actions[3] = sizeMenu->addAction(tr("Double size"));
+	m_sizeActionGroup = new QActionGroup(this);
+	for (int i=0; i<4; i++) {
+		m_actions[i]->setCheckable(true);
+		m_sizeActionGroup->addAction(m_actions[i]);
+	}
+
+	m_actions[4] = this->addAction(tr("Boxing/Window"));
+	m_actions[5] = this->addAction(tr("Conceal"));
+	m_actions[6] = this->addAction(tr("Invert"));
+	m_actions[7] = this->addAction(tr("Underline/Separated"));
+	m_otherActionGroup = new QActionGroup(this);
+	m_otherActionGroup->setExclusive(false);
+	for (int i=4; i<8; i++) {
+		m_actions[i]->setCheckable(true);
+		m_otherActionGroup->addAction(m_actions[i]);
+	}
+}
+
+void TripletDisplayAttrsQMenu::setTextSizeChecked(int n)
+{
+	m_actions[n]->setChecked(true);
+}
+
+void TripletDisplayAttrsQMenu::setOtherAttrChecked(int n, bool b)
+{
+	m_actions[n+4]->setChecked(b);
+}
+
+
+TripletFontStyleQMenu::TripletFontStyleQMenu(QWidget *parent): QMenu(parent)
+{
+	m_actions[0] = this->addAction(tr("Proportional"));
+	m_actions[1] = this->addAction(tr("Bold"));
+	m_actions[2] = this->addAction(tr("Italic"));
+	m_styleActionGroup = new QActionGroup(this);
+	m_styleActionGroup->setExclusive(false);
+	for (int i=0; i<3; i++) {
+		m_actions[i]->setCheckable(true);
+		m_styleActionGroup->addAction(m_actions[i]);
+	}
+
+	QMenu *rowsMenu = this->addMenu(tr("Next rows"));
+	m_rowsActionGroup = new QActionGroup(this);
+	for (int i=3; i<11; i++) {
+		m_actions[i] = rowsMenu->addAction(QString("%1").arg(i-3));
+		m_actions[i]->setCheckable(true);
+		m_rowsActionGroup->addAction(m_actions[i]);
+	}
+}
+
+void TripletFontStyleQMenu::setStyleChecked(int n, bool b)
+{
+	m_actions[n]->setChecked(b);
+}
+
+void TripletFontStyleQMenu::setRowsChecked(int n)
+{
+	m_actions[n+3]->setChecked(true);
+}

src/qteletextmaker/x26menus.h

@@ -0,0 +1,207 @@
+/*
+ * Copyright (C) 2020-2024 Gavin MacGregor
+ *
+ * This file is part of QTeletextMaker.
+ *
+ * QTeletextMaker is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * QTeletextMaker is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with QTeletextMaker.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#ifndef X26MENUS_H
+#define X26MENUS_H
+
+#include <QActionGroup>
+#include <QColor>
+#include <QMenu>
+#include <QString>
+
+#include "render.h"
+
+class ModeTripletNames
+{
+public:
+	static const QString modeName(int i) { return m_modeTripletName[i]; }
+
+private:
+	static inline const QString m_modeTripletName[64] {
+		// Row triplet modes
+		"Full screen colour",
+		"Full row colour",
+		"Reserved 0x02",
+		"Reserved 0x03",
+
+		"Set Active Position",
+		"Reserved 0x05",
+		"Reserved 0x06",
+		"Address row 0",
+
+		"PDC origin, source",
+		"PDC month and day",
+		"PDC cursor and start hour",
+		"PDC cursor and end hour",
+
+		"PDC cursor local offset",
+		"PDC series ID and code",
+		"Reserved 0x0e",
+		"Reserved 0x0f",
+
+		"Origin modifier",
+		"Invoke active object",
+		"Invoke adaptive object",
+		"Invoke passive object",
+
+		"Reserved 0x14",
+		"Define active object",
+		"Define adaptive object",
+		"Define passive object",
+
+		"DRCS mode",
+		"Reserved 0x19",
+		"Reserved 0x1a",
+		"Reserved 0x1b",
+
+		"Reserved 0x1c",
+		"Reserved 0x1d",
+		"Reserved 0x1e",
+		"Termination marker",
+
+		// Column triplet modes
+		"Foreground colour",
+		"G1 block mosaic",
+		"G3 smooth mosaic, level 1.5",
+		"Background colour",
+
+		"Reserved 0x04",
+		"Reserved 0x05",
+		"PDC cursor, start end min",
+		"Additional flash functions",
+
+		"Modified G0/G2 character set",
+		"G0 character",
+		"Reserved 0x0a",
+		"G3 smooth mosaic, level 2.5",
+
+		"Display attributes",
+		"DRCS character",
+		"Font style, level 3.5",
+		"G2 supplementary character",
+
+		"G0 character no diacritical",
+		"G0 character diacritical 1",
+		"G0 character diacritical 2",
+		"G0 character diacritical 3",
+		"G0 character diacritical 4",
+		"G0 character diacritical 5",
+		"G0 character diacritical 6",
+		"G0 character diacritical 7",
+		"G0 character diacritical 8",
+		"G0 character diacritical 9",
+		"G0 character diacritical A",
+		"G0 character diacritical B",
+		"G0 character diacritical C",
+		"G0 character diacritical D",
+		"G0 character diacritical E",
+		"G0 character diacritical F"
+	};
+};
+
+class TripletModeQMenu : public QMenu
+{
+	Q_OBJECT
+
+public:
+	TripletModeQMenu(QWidget *parent = nullptr);
+	QAction *action(int n) const { return m_actions[n]; };
+
+private:
+	void addModeAction(QMenu *menu, int mode);
+
+	QAction *m_actions[64];
+	ModeTripletNames m_modeTripletNames;
+};
+
+class TripletCLUTQMenu : public QMenu
+{
+	Q_OBJECT
+
+public:
+	TripletCLUTQMenu(bool rows, QWidget *parent = nullptr);
+	QAction *action(int n) const { return m_actions[n]; };
+	void setColour(int i, QColor c);
+
+private:
+	QAction *m_actions[34];
+};
+
+class TripletCharacterQMenu : public QMenu
+{
+	Q_OBJECT
+
+public:
+	TripletCharacterQMenu(int charSet, bool mosaic, QWidget *parent = nullptr);
+	QAction *action(int n) const { return m_actions[n]; };
+
+private:
+	QAction *m_actions[96];
+	TeletextFontBitmap m_fontBitmap;
+};
+
+class TripletFlashQMenu : public QMenu
+{
+	Q_OBJECT
+
+public:
+	TripletFlashQMenu(QWidget *parent = nullptr);
+	QAction *modeAction(int n) const { return m_actions[n]; };
+	QAction *ratePhaseAction(int n) const { return m_actions[n+4]; };
+	void setModeChecked(int n);
+	void setRatePhaseChecked(int n);
+
+private:
+	QAction *m_actions[10];
+	QActionGroup *m_modeActionGroup, *m_ratePhaseActionGroup;
+};
+
+class TripletDisplayAttrsQMenu : public QMenu
+{
+	Q_OBJECT
+
+public:
+	TripletDisplayAttrsQMenu(QWidget *parent = nullptr);
+	QAction *textSizeAction(int n) const { return m_actions[n]; };
+	QAction *otherAttrAction(int n) const { return m_actions[n+4]; };
+	void setTextSizeChecked(int n);
+	void setOtherAttrChecked(int n, bool b);
+
+private:
+	QAction *m_actions[8];
+	QActionGroup *m_sizeActionGroup, *m_otherActionGroup;
+};
+
+class TripletFontStyleQMenu : public QMenu
+{
+	Q_OBJECT
+
+public:
+	TripletFontStyleQMenu(QWidget *parent = nullptr);
+	QAction *styleAction(int n) const { return m_actions[n]; };
+	QAction *rowsAction(int n) const { return m_actions[n+3]; };
+	void setStyleChecked(int n, bool b);
+	void setRowsChecked(int n);
+
+private:
+	QAction *m_actions[11];
+	QActionGroup *m_styleActionGroup, *m_rowsActionGroup;
+};
+
+#endif

src/qteletextmaker/x26model.cpp

@@ -0,0 +1,936 @@
+/*
+ * Copyright (C) 2020-2024 Gavin MacGregor
+ *
+ * This file is part of QTeletextMaker.
+ *
+ * QTeletextMaker is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * QTeletextMaker is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with QTeletextMaker.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include "x26model.h"
+
+#include <QIcon>
+#include <QList>
+
+#include "x26commands.h"
+#include "x26menus.h"
+
+X26Model::X26Model(TeletextWidget *parent): QAbstractListModel(parent)
+{
+	m_parentMainWidget = parent;
+	m_listLoaded = true;
+}
+
+void X26Model::setX26ListLoaded(bool newListLoaded)
+{
+	beginResetModel();
+	m_listLoaded = newListLoaded;
+	endResetModel();
+}
+
+int X26Model::rowCount(const QModelIndex & /*parent*/) const
+{
+	return m_listLoaded ? m_parentMainWidget->document()->currentSubPage()->enhancements()->size() : 0;
+}
+
+int X26Model::columnCount(const QModelIndex & /*parent*/) const
+{
+	return 4;
+}
+
+QVariant X26Model::data(const QModelIndex &index, int role) const
+{
+	const X26Triplet triplet = m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row());
+
+	// Qt::UserRole will always return the raw values
+	if (role == Qt::UserRole)
+		switch (index.column()) {
+			case 0:
+				return triplet.address();
+			case 1:
+				return triplet.mode();
+			case 2:
+				return triplet.data();
+			default:
+				return QVariant();
+		}
+
+	// Error colours from KDE Plasma Breeze (light) theme
+	if (role == Qt::ForegroundRole) {
+		if (triplet.error() != X26Triplet::NoError && index.column() == m_tripletErrors[triplet.error()].columnHighlight)
+			return QColor(252, 252, 252);
+		if ((index.column() == 2 && triplet.reservedMode()) || (index.column() == 3 && triplet.reservedData()))
+			return QColor(35, 38, 39);
+		if (index.column() <= 1 && triplet.activePosition1p5Differs())
+			return QColor(35, 38, 39);
+	}
+
+	if (role == Qt::BackgroundRole) {
+		if (triplet.error() != X26Triplet::NoError && index.column() == m_tripletErrors[triplet.error()].columnHighlight)
+			return QColor(218, 68, 63);
+		if ((index.column() == 2 && triplet.reservedMode()) || (index.column() == 3 && triplet.reservedData()))
+			return QColor(246, 116, 0);
+		if (index.column() <= 1 && triplet.activePosition1p5Differs())
+			return QColor(246, 116, 0);
+	}
+
+	if (role == Qt::ToolTipRole) {
+		if (triplet.error() != X26Triplet::NoError)
+			return m_tripletErrors[triplet.error()].message;
+		if (triplet.activePosition1p5Differs())
+			return "Active Position differs between Level 1.5 and higher levels";
+	}
+
+	if (role == Qt::DisplayRole || role == Qt::EditRole)
+		switch (index.column()) {
+			case 0:
+				// Show row number only if address part of triplet actually represents a row:
+				// Full row colour, Set Active Position and Origin Modifier
+				// For Origin Modifier address of 40 refers to same row, so show it as 0
+				if (triplet.modeExt() == 0x10) {
+					if (triplet.address() == 40)
+						return "+0";
+					else
+						return QString("+%1").arg(triplet.addressRow());
+				}
+				if (triplet.modeExt() == 0x01 || triplet.modeExt() == 0x04)
+					return triplet.addressRow();
+				else
+					return QVariant();
+			case 1:
+				if (!triplet.isRowTriplet())
+					return triplet.addressColumn();
+				// For Set Active Position and Origin Modifier, data is the column
+				else if (triplet.modeExt() == 0x04)
+					return triplet.data();
+				else if (triplet.modeExt() == 0x10)
+					return QString("+%1").arg(triplet.data());
+				else
+					return QVariant();
+		}
+
+	QString result;
+
+	if (role == Qt::DisplayRole) {
+		if (index.column() == 2)
+			return (m_modeTripletNames.modeName(triplet.modeExt()));
+		// Column 3 - describe effects of data/address triplet parameters in plain English
+		switch (triplet.modeExt()) {
+			case 0x01: // Full row colour
+			case 0x07: // Address row 0
+				if ((triplet.data() & 0x60) == 0x60)
+					result = ", down to bottom";
+				else if ((triplet.data() & 0x60) == 0x00)
+					result = ", this row only";
+				// fall-through
+			case 0x00: // Full screen colour
+				if (!(result.isEmpty()) || (triplet.data() & 0x60) == 0x00) {
+					result.prepend(QString("CLUT %1:%2").arg((triplet.data() & 0x18) >> 3).arg(triplet.data() & 0x07));
+					return result;
+				}
+				break;
+			case 0x04: // Set Active Position
+			case 0x10: // Origin Modifier
+				// For Set Active Position and Origin Modifier, data is the column, so return blank
+				return QVariant();
+			case 0x11: // Invoke Active Object
+			case 0x12: // Invoke Adaptive Object
+			case 0x13: // Invoke Passive Object
+				switch (triplet.address() & 0x18) {
+					case 0x08:
+						return QString("Local: d%1 t%2").arg((triplet.data() >> 4) | ((triplet.address() & 0x01) << 3)).arg(triplet.data() & 0x0f);
+					case 0x10:
+						result = "POP";
+						break;
+					case 0x18:
+						result = "GPOP";
+						break;
+					// case 0x00: shouldn't happen since that would make a column triplet, not a row triplet
+				}
+				result.append(QString(": subpage %1 pkt %2 trplt %3 bits ").arg(triplet.data() & 0x0f).arg((triplet.address() & 0x03) + 1).arg(((triplet.data() & 0x60) >> 5) * 3 + (triplet.modeExt() & 0x03)));
+				if (triplet.data() & 0x10)
+					result.append("10-18");
+				else
+					result.append("1-9");
+				return result;
+			case 0x15: // Define Active Object
+			case 0x16: // Define Adaptive Object
+			case 0x17: // Define Passive Object
+				switch (triplet.address() & 0x18) {
+					case 0x08:
+						return "Local: L2.5 only";
+						break;
+					case 0x10:
+						return "Local: L3.5 only";
+						break;
+					case 0x18:
+						return "Local: L2.5 and 3.5";
+						break;
+					// case 0x00: shouldn't happen since that would make a column triplet, not a row triplet
+				}
+				break;
+			case 0x18: // DRCS mode
+				result = (triplet.data() & 0x40) == 0x40 ? "Normal" : "Global";
+				result.append(QString(": subpage %1, ").arg(triplet.data() & 0x0f));
+				switch (triplet.data() & 0x30) {
+					case 0x10:
+						result.append("L2.5 only");
+						break;
+					case 0x20:
+						result.append("L3.5 only");
+						break;
+					case 0x30:
+						result.append("L2.5 and 3.5");
+						break;
+					case 0x00:
+						result.append("Reserved");
+						break;
+				}
+				return result;
+			case 0x1f: // Termination
+				switch (triplet.data() & 0x07) {
+					case 0x00:
+						return "Intermed (G)POP subpage. End of object, more follows";
+						break;
+					case 0x01:
+						return "Intermed (G)POP subpage. End of last object on page";
+						break;
+					case 0x02:
+						return "Last (G)POP subpage. End of object, more follows";
+						break;
+					case 0x03:
+						return "Last (G)POP subpage. End of last object on page";
+						break;
+					case 0x04:
+						return "Local object definitions. End of object, more follows";
+						break;
+					case 0x05:
+						return "Local object definitions. End of last object on page";
+						break;
+					case 0x06:
+						return "End of local enhance data. Local objects follow";
+						break;
+					case 0x07:
+						return "End of local enhance data. No local objects";
+						break;
+				}
+				break;
+			case 0x08: // PDC country of origin & programme source
+			case 0x09: // PDC month & day
+			case 0x0a: // PDC cursor row & announced start hour
+			case 0x0b: // PDC cursor row & announced finish hour
+			case 0x0c: // PDC cursor row & local time offset
+			case 0x0d: // PDC series ID & series code
+				return QString("0x%1").arg(triplet.data(), 2, 16, QChar('0'));
+			case 0x20: // Foreground colour
+			case 0x23: // Background colour
+				if (!(triplet.data() & 0x60))
+					return QString("CLUT %1:%2").arg((triplet.data() & 0x18) >> 3).arg(triplet.data() & 0x07);
+				break;
+			case 0x21: // G1 mosaic character
+			case 0x22: // G3 mosaic character at level 1.5
+			case 0x29: // G0 character
+			case 0x2b: // G3 mosaic character at level >=2.5
+			case 0x2f: // G2 character
+				if (triplet.data() >= 0x20)
+					return QString("0x%1").arg(triplet.data(), 2, 16);
+				break;
+			case 0x27: // Flash functions
+				if (triplet.data() < 0x18) {
+					switch (triplet.data() & 0x03) {
+						case 0x00:
+							result = "Steady";
+							break;
+						case 0x01:
+							result = "Normal";
+							break;
+						case 0x02:
+							result = "Invert";
+							break;
+						case 0x03:
+							result = "Adj CLUT";
+							break;
+					}
+					switch (triplet.data() & 0x1c) {
+						case 0x00:
+							result.append(", 1Hz");
+							break;
+						case 0x04:
+							result.append(", 2Hz ph 1");
+							break;
+						case 0x08:
+							result.append(", 2Hz ph 2");
+							break;
+						case 0x0c:
+							result.append(", 2Hz ph 3");
+							break;
+						case 0x10:
+							result.append(", 2Hz inc");
+							break;
+						case 0x14:
+							result.append(", 2Hz dec");
+							break;
+					}
+					return result;
+				}
+				break;
+			case 0x28: // Modified G0 and G2 character set
+				switch (triplet.data()) {
+					case 0x20:
+						return QString("0x20 Cyrillic 1 Serbian/Croatian");
+					case 0x24:
+						return QString("0x24 Cyrillic 2 Russian/Bulgarian");
+					case 0x25:
+						return QString("0x25 Cyrillic 3 Ukranian");
+					case 0x36:
+						return QString("0x36 Latin");
+					case 0x37:
+						return QString("0x37 Greek");
+					case 0x40:
+					case 0x44:
+						return QString("0x%1 G0 Latin, G2 Arabic").arg(triplet.data(), 2, 16);
+					case 0x47:
+					case 0x57:
+						return QString("0x%1 Arabic").arg(triplet.data(), 2, 16);
+					case 0x55:
+						return QString("0x55 G0 Hebrew, G2 Arabic");
+				}
+				if (triplet.data() < 0x27)
+					return QString("0x%1 Latin").arg(triplet.data(), 2, 16, QChar('0'));
+				break;
+			case 0x2c: // Display attributes
+				if (triplet.data() & 0x02)
+					result.append("Boxing ");
+				if (triplet.data() & 0x04)
+					result.append("Conceal ");
+				if (triplet.data() & 0x10)
+					result.append("Invert ");
+				if (triplet.data() & 0x20)
+					result.append("Underline ");
+				if (result.isEmpty())
+					result = "None";
+				else
+					// Chop off the last space
+					result.chop(1);
+				switch (triplet.data() & 0x41) {
+					case 0x00:
+						result.append(", normal size");
+						break;
+					case 0x01:
+						result.append(", double height");
+						break;
+					case 0x40:
+						result.append(", double width");
+						break;
+					case 0x41:
+						result.append(", double size");
+						break;
+				}
+				return result;
+			case 0x2d: // DRCS character
+				result = (triplet.data() & 0x40) == 0x40 ? "Normal" : "Global";
+				result.append(QString(": %1").arg(triplet.data() & 0x3f));
+				return result;
+			case 0x2e: // Font style
+				if (triplet.data() & 0x01)
+					result.append("Proportional ");
+				if (triplet.data() & 0x02)
+					result.append("Bold ");
+				if (triplet.data() & 0x04)
+					result.append("Italic ");
+				if (result.isEmpty())
+					result = "None";
+				else
+					// Chop off the last space
+					result.chop(1);
+				result.append(QString(", %1 row(s)").arg(triplet.data() >> 4));
+				return result;
+			case 0x26: // PDC
+				return QString("0x%1").arg(triplet.data(), 2, 16, QChar('0'));
+			default:
+				if (triplet.modeExt() >= 0x30 && triplet.modeExt() <= 0x3f && triplet.data() >= 0x20)
+					// G0 with diacritical
+					return QString("0x%1").arg(triplet.data(), 2, 16);
+				else
+					// Reserved
+					return QString("Reserved 0x%1").arg(triplet.data(), 2, 16, QChar('0'));
+		}
+		// Reserved mode or data
+		return QString("Reserved 0x%1").arg(triplet.data(), 2, 16, QChar('0'));
+	}
+
+	if (role == Qt::DecorationRole && index.column() == 3)
+		switch (triplet.modeExt()) {
+			case 0x00: // Full screen colour
+			case 0x20: // Foreground colour
+			case 0x23: // Background colour
+				if (!(triplet.data() & 0x60))
+					return m_parentMainWidget->document()->currentSubPage()->CLUTtoQColor(triplet.data());
+				break;
+			case 0x01: // Full row colour
+			case 0x07: // Address row 0
+				if (((triplet.data() & 0x60) == 0x00) || ((triplet.data() & 0x60) == 0x60))
+					return m_parentMainWidget->document()->currentSubPage()->CLUTtoQColor(triplet.data() & 0x1f);
+				break;
+			case 0x21: // G1 mosaic character
+				if (triplet.data() & 0x20)
+					return m_fontBitmap.charIcon(triplet.data(), 24);
+				else if (triplet.data() >= 0x20)
+					// Blast-through
+					return m_fontBitmap.charIcon(triplet.data(), m_parentMainWidget->pageDecode()->cellG0CharacterSet(triplet.activePositionRow(), triplet.activePositionColumn()));
+				break;
+			case 0x22: // G3 mosaic character at level 1.5
+			case 0x2b: // G3 mosaic character at level >=2.5
+				if (triplet.data() >= 0x20)
+					return m_fontBitmap.charIcon(triplet.data(), 26);
+				break;
+			case 0x2f: // G2 character
+				if (triplet.data() >= 0x20)
+					return m_fontBitmap.charIcon(triplet.data(), m_parentMainWidget->pageDecode()->cellG2CharacterSet(triplet.activePositionRow(), triplet.activePositionColumn()));
+				break;
+			default:
+				if (triplet.modeExt() == 0x29 || (triplet.modeExt() >= 0x30 && triplet.modeExt() <= 0x3f))
+					// G0 character or G0 diacritical mark
+					if (triplet.data() >= 0x20)
+						return m_fontBitmap.charIcon(triplet.data(), m_parentMainWidget->pageDecode()->cellG0CharacterSet(triplet.activePositionRow(), triplet.activePositionColumn()));
+		}
+
+	if (role == Qt::EditRole && index.column() == 2)
+		return triplet.modeExt();
+
+	if (role < Qt::UserRole)
+		return QVariant();
+
+	switch (triplet.modeExt()) {
+		case 0x01: // Full row colour
+		case 0x07: // Address row 0
+			if (role == Qt::UserRole+2) // "this row only" or "down to bottom"
+				return (triplet.data() & 0x60) == 0x60;
+			// fall-through
+		case 0x00: // Full screen colour
+		case 0x20: // Foreground colour
+		case 0x23: // Background colour
+			if (role == Qt::UserRole+1) // Colour index
+				return triplet.data() & 0x1f;
+			break;
+		case 0x11: // Invoke Active Object
+		case 0x12: // Invoke Adaptive Object
+		case 0x13: // Invoke Passive Object
+			switch (role) {
+				case Qt::UserRole+1: // Object source: Local, POP or GPOP
+					return ((triplet.address() & 0x18) >> 3) - 1;
+				case Qt::UserRole+2:
+					if ((triplet.address() & 0x18) == 0x08)
+						// Local object: Designation code
+						return ((triplet.address() & 0x01) << 3) | ((triplet.data() & 0x70) >> 4);
+					else
+						// (G)POP object: Subpage
+						return triplet.data() & 0x0f;
+				case Qt::UserRole+3:
+					if ((triplet.address() & 0x08) == 0x08)
+						// Local object: Triplet number
+						return triplet.data() & 0x0f;
+					else
+						// (G)POP object: Pointer location
+						return (triplet.address() & 0x03) + 1;
+				case Qt::UserRole+4: // (G)POP object: Triplet number
+					return triplet.data() >> 5;
+				case Qt::UserRole+5: // (G)POP object: Pointer position
+					return (triplet.data() & 0x10) >> 4;
+			}
+			break;
+		case 0x15: // Define Active Object
+		case 0x16: // Define Adaptive Object
+		case 0x17: // Define Passive Object
+			switch (role) {
+				case Qt::UserRole+1: // Required at which levels
+					return ((triplet.address() & 0x18) >> 3) - 1;
+				case Qt::UserRole+2: // Local object: Designation code
+					return ((triplet.address() & 0x01) << 3) | ((triplet.data() & 0x70) >> 4);
+				case Qt::UserRole+3: // Local object: Triplet number
+					return triplet.data() & 0x0f;
+			}
+			break;
+		case 0x18: // DRCS mode
+			switch (role) {
+				case Qt::UserRole+1: // Required at which levels
+					return ((triplet.data() & 0x30) >> 4) - 1;
+				case Qt::UserRole+3: // Normal or Global
+					return (triplet.data() & 0x40) == 0x40;
+				case Qt::UserRole+4: // Subpage
+					return triplet.data() & 0x0f;
+			}
+			break;
+		case 0x1f: // Termination
+			switch (role) {
+				case Qt::UserRole+1: // Intermed POP subpage|Last POP subpage|Local Object|Local enhance
+					return ((triplet.data() & 0x06) >> 1);
+				case Qt::UserRole+2: // More follows/Last
+					return (triplet.data() & 0x01) == 0x01;
+			}
+			break;
+		case 0x21: // G1 character
+			// Qt::UserRole+1 is character number, returned by default below
+			switch (role) {
+				case Qt::UserRole+2: // G1 character set
+					return 24;
+				case Qt::UserRole+3: // G0 character set for blast-through
+					return m_parentMainWidget->pageDecode()->cellG0CharacterSet(triplet.activePositionRow(), triplet.activePositionColumn());
+			}
+			break;
+		case 0x22: // G3 character at Level 1.5
+		case 0x2b: // G3 character at Level 2.5
+			// Qt::UserRole+1 is character number, returned by default below
+			if (role == Qt::UserRole+2) // G3 character set
+				return 26;
+			break;
+		case 0x27: // Flash functions
+			switch (role) {
+				case Qt::UserRole+1: // Flash mode
+					return triplet.data() & 0x03;
+				case Qt::UserRole+2: // Flash rate and phase
+					return triplet.data() >> 2;
+			}
+			break;
+		case 0x2c: // Display attributes
+			switch (role) {
+				case Qt::UserRole+1: // Text size
+					return (triplet.data() & 0x01) | ((triplet.data() & 0x40) >> 5);
+				case Qt::UserRole+2: // Boxing/window
+					return (triplet.data() & 0x02) == 0x02;
+				case Qt::UserRole+3: // Conceal
+					return (triplet.data() & 0x04) == 0x04;
+				case Qt::UserRole+4: // Invert
+					return (triplet.data() & 0x10) == 0x10;
+				case Qt::UserRole+5: // Underline/Separated
+					return (triplet.data() & 0x20) == 0x20;
+			}
+			break;
+		case 0x2d: // DRCS character
+			switch (role) {
+				case Qt::UserRole+1: // Normal or Global
+					return (triplet.data() & 0x40) == 0x40;
+				case Qt::UserRole+2: // Character number
+					return triplet.data() & 0x3f;
+			}
+			break;
+		case 0x2e: // Font style
+			switch (role) {
+				case Qt::UserRole+1: // Proportional
+					return (triplet.data() & 0x01) == 0x01;
+				case Qt::UserRole+2: // Bold
+					return (triplet.data() & 0x02) == 0x02;
+				case Qt::UserRole+3: // Italic
+					return (triplet.data() & 0x04) == 0x04;
+				case Qt::UserRole+4: // Number of rows
+					return triplet.data() >> 4;
+			}
+			break;
+		case 0x2f: // G2 character
+			// Qt::UserRole+1 is character number, returned by default below
+			if (role == Qt::UserRole+2) // Character set
+				return m_parentMainWidget->pageDecode()->cellG2CharacterSet(triplet.activePositionRow(), triplet.activePositionColumn());
+			break;
+		default:
+			if (triplet.modeExt() == 0x29 || (triplet.modeExt() >= 0x30 && triplet.modeExt() <= 0x3f))
+				// G0 character or G0 diacritical mark
+				// Qt::UserRole+1 is character number, returned by default below
+				if (role == Qt::UserRole+2) // Character set
+					return m_parentMainWidget->pageDecode()->cellG0CharacterSet(triplet.activePositionRow(), triplet.activePositionColumn());
+	};
+
+	// For characters and other triplet modes, return the complete data value
+	if (role == Qt::UserRole+1)
+		return triplet.data();
+
+	return QVariant();
+}
+
+bool X26Model::setData(const QModelIndex &index, const QVariant &value, int role)
+{
+	if (!index.isValid())
+		return false;
+
+	if (!value.canConvert<int>())
+		return false;
+
+	const int intValue = value.toInt();
+
+	if (intValue < 0)
+		return false;
+
+	// Raw address, mode and data values
+	if (role == Qt::UserRole && index.column() <= 2) {
+		m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), index.column(), 0x00, intValue, role));
+
+		return true;
+	}
+
+	const X26Triplet triplet = m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row());
+
+	// Cooked row, column and triplet mode
+	if (role == Qt::EditRole) {
+		switch (index.column()) {
+			case 0: // Cooked row
+				// Maximum row is 24
+				if (intValue > 24)
+					return false;
+				// Set Active Position and Full Row Colour can't select row 0
+				if (((triplet.modeExt() == 0x04) || (triplet.modeExt() == 0x01)) && intValue == 0)
+					return false;
+				// For Origin Modifier address of 40 refers to same row
+				if (triplet.modeExt() == 0x10 && intValue == 24) {
+					m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETaddress, 0x00, 40, role));
+					return true;
+				}
+				// Others use address 40 for row 24
+				m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETaddress, 0x00, (intValue == 24) ? 40 : intValue+40, role));
+				return true;
+
+			case 1: // Cooked column
+				// Origin modifier allows columns up to 71
+				if (intValue > (triplet.modeExt() == 0x10 ? 71 : 39))
+					return false;
+				// For Set Active Position and Origin Modifier, data is the column
+				if (triplet.modeExt() == 0x04 || triplet.modeExt() == 0x10)
+					m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETdata, 0x00, intValue, role));
+				else
+					m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETaddress, 0x00, intValue, role));
+				return true;
+
+			case 2: // Cooked triplet mode
+				if (intValue < 0x20 && !triplet.isRowTriplet()) {
+					// Changing mode from column triplet to row triplet
+					m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETaddress, 0x00, 41, role));
+					m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETdata, 0x00, 0, role));
+				}
+				if (intValue >= 0x20 && triplet.isRowTriplet()) {
+					// Changing mode from row triplet to column triplet
+					m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETaddress, 0x00, 0, role));
+					m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETdata, 0x00, 0, role));
+				}
+				m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETmode, 0x00, intValue & 0x1f, role));
+
+				// Now set data values to avoid reserved bits if we need to
+				// FIXME this can rather messily push multiple EditTripletCommands
+				// that rely on mergeWith to tidy them up afterwards
+				// Also this just flips bits, where we could use default values
+				switch (intValue) {
+					case 0x00: // Full screen colour
+					case 0x20: // Foreground colour
+					case 0x23: // Background colour
+						// Both S1 and S0 reserved bits must be clear
+						if (triplet.data() & 0x60)
+							m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETdata, 0x1f, 0x00, role));
+						break;
+					case 0x07: // Address row 0
+						// Address locked to 63
+						if (triplet.address() != 63)
+							m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETaddress, 0x00, 63, role));
+						// fall-through
+					case 0x01: // Full row colour
+						// S1 and S0 bits need to be the same
+						if ((triplet.data() & 0x60) != 0x00 && (triplet.data() & 0x60) != 0x60)
+							m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETdata, 0x1f, 0x00, role));
+						break;
+					case 0x04: // Set Active Position
+						// Data range 0-39
+						if (triplet.data() >= 40)
+							m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETdata, 0x00, 0, role));
+						break;
+					case 0x10: // Origin modifier
+						// Data range 0-71
+						if (triplet.data() >= 72)
+							m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETdata, 0x00, 0, role));
+						break;
+					case 0x11: // Invoke Active Object
+					case 0x12: // Invoke Adaptive Object
+					case 0x13: // Invoke Passive Object
+					case 0x15: // Define Active Object
+					case 0x16: // Define Adaptive Object
+					case 0x17: // Define Passive Object
+						// Bit 3 of Address is reserved
+						if ((triplet.address() & 0x04) == 0x04)
+							m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETaddress, 0x7b, 0x00, role));
+						// BUG we're only dealing with Local Object Definitions at the moment!
+						// If source is Local, triplet number must be in range 0-12
+						if (((triplet.address() & 0x18) == 0x08) && ((triplet.data() & 0x0f) >= 12))
+							m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETdata, 0x70, 0x00, role));
+						break;
+					case 0x18: // DRCS mode
+						// At least one of the L1 and L0 bits must be set
+						if ((triplet.data() & 0x30) == 0x00)
+							m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETdata, 0x4f, 0x30, role));
+						break;
+					case 0x1f: // Termination marker
+						// Address locked to 63
+						if (triplet.address() != 63)
+							m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETaddress, 0x00, 63, role));
+						// Clear reserved bits D6-D3
+						if (triplet.data() & 0x78)
+							m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETdata, 0x07, 0x00, role));
+						break;
+					case 0x27: // Additional flash functions
+						// D6 and D5 must be clear, D4 and D3 set is reserved phase
+						if (triplet.data() >= 0x18)
+							m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETdata, 0x00, 0, role));
+						break;
+					case 0x2c: // Display attributes
+					case 0x2e: // Font style
+						// Clear reserved bit D3
+						if (triplet.data() & 0x08)
+							m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETdata, 0x77, 0x00, role));
+						break;
+					case 0x2d: // DRCS character
+						// D5-D0 range 0-47
+						if ((triplet.data() & 0x3f) >= 48)
+							m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETdata, 0x40, 0x77, role));
+						break;
+					case 0x21: // G1 mosaic character
+					case 0x22: // G3 mosaic character at level 1.5
+					case 0x29: // G0 character
+					case 0x2b: // G3 mosaic character at level >=2.5
+					case 0x2f: // G2 character
+						// Data range 0x20-0x7f
+						if (triplet.data() < 0x20)
+							m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETdata, 0x00, 0x20, role));
+						break;
+					default:
+						if (intValue >= 0x30 && intValue <= 0x3f && triplet.data() < 0x20)
+						// G0 diacritical mark
+						// Data range 0x20-0x7f
+							m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETdata, 0x00, 0x20, role));
+				}
+				return true;
+		}
+		return false;
+	}
+
+	if (role < Qt::UserRole)
+		return false;
+
+	switch (triplet.modeExt()) {
+		case 0x01: // Full row colour
+		case 0x07: // Address row 0
+			switch (role) {
+				case Qt::UserRole+1: // Colour index
+					m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETdata, 0x60, intValue, role));
+					return true;
+				case Qt::UserRole+2: // "this row only" or "down to bottom"
+					m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETdata, 0x1f, intValue * 0x60, role));
+					break;
+			}
+			break;
+		case 0x11: // Invoke Active Object
+		case 0x12: // Invoke Adaptive Object
+		case 0x13: // Invoke Passive Object
+			switch (role) {
+				case Qt::UserRole+1: // Object source: Local, POP or GPOP
+					m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETaddress, 0x27, (intValue+1) << 3, role));
+					return true;
+				case Qt::UserRole+2:
+					if ((triplet.address() & 0x18) == 0x08) {
+						// Local object: Designation code
+						m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETdata, 0x0f, (intValue & 0x07) << 4, role));
+						m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETaddress, 0x38, intValue >> 3, role));
+					} else
+						// (G)POP object: Subpage
+						m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETdata, 0x30, intValue, role));
+					return true;
+				case Qt::UserRole+3: // Invoke object
+					if ((triplet.address() & 0x18) == 0x08)
+						// Local object: triplet number
+						m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETdata, 0x70, intValue, role));
+					else
+						// (G)POP object: Pointer location
+						m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETaddress, 0x7c, intValue - 1, role));
+					return true;
+				case Qt::UserRole+4: // (G)POP object: Triplet number
+					m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETdata, 0x1f, intValue << 5, role));
+					return true;
+				case Qt::UserRole+5: // (G)POP object: Pointer position
+					m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETdata, 0x6f, intValue << 4, role));
+					return true;
+			}
+			break;
+		case 0x15: // Define Active Object
+		case 0x16: // Define Adaptive Object
+		case 0x17: // Define Passive Object
+			switch (role) {
+				case Qt::UserRole+1: // Required at which levels
+					m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETaddress, 0x27, (intValue+1) << 3, role));
+					return true;
+				case Qt::UserRole+2: // Local object: Designation code
+					m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETdata, 0x0f, (intValue & 0x07) << 4, role));
+					m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETaddress, 0x38, intValue >> 3, role));
+					return true;
+				case Qt::UserRole+3: // Local object: triplet number
+					m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETdata, 0x70, intValue, role));
+					break;
+			}
+			break;
+		case 0x18: // DRCS Mode
+			switch (role) {
+				case Qt::UserRole+1: // Required at which levels
+					m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETdata, 0x4f, (intValue+1) << 4, role));
+					return true;
+				case Qt::UserRole+3: // Normal or Global
+					m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETdata, 0x3f, intValue << 6, role));
+					return true;
+				case Qt::UserRole+4: // Subpage
+					m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETdata, 0x70, intValue, role));
+					return true;
+			}
+			break;
+		case 0x1f: // Termination
+			switch (role) {
+				case Qt::UserRole+1: // Intermed POP subpage|Last POP subpage|Local Object|Local enhance
+					m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETdata, 0x01, intValue << 1, role));
+					return true;
+				case Qt::UserRole+2: // More follows/Last
+					m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETdata, 0x06, intValue, role));
+					return true;
+			}
+			break;
+		case 0x27: // Flash functions
+			switch (role) {
+				case Qt::UserRole+1: // Flash mode
+					m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETdata, 0x1c, intValue, role));
+					return true;
+				case Qt::UserRole+2: // Flash rate and phase
+					m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETdata, 0x03, intValue << 2, role));
+					break;
+			}
+			break;
+		case 0x2c: // Display attributes
+			switch (role) {
+				case Qt::UserRole+1: // Text size
+					m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETdata, 0x36, ((intValue & 0x02) << 5) | (intValue & 0x01), role));
+					return true;
+				case Qt::UserRole+2: // Boxing/window
+					m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETdata, 0x7d, intValue << 1, role));
+					return true;
+				case Qt::UserRole+3: // Conceal
+					m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETdata, 0x7b, intValue << 2, role));
+					return true;
+				case Qt::UserRole+4: // Invert
+					m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETdata, 0x6f, intValue << 4, role));
+					return true;
+				case Qt::UserRole+5: // Underline/Separated
+					m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETdata, 0x5f, intValue << 5, role));
+					return true;
+			}
+			break;
+		case 0x2d: // DRCS character
+			switch (role) {
+				case Qt::UserRole+1: // Normal or Global
+					m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETdata, 0x3f, intValue << 6, role));
+					return true;
+				case Qt::UserRole+2: // Character number
+					m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETdata, 0x40, intValue, role));
+					break;
+			}
+			break;
+		case 0x2e: // Font style
+			switch (role) {
+				case Qt::UserRole+1: // Proportional
+					m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETdata, 0x7e, intValue, role));
+					return true;
+				case Qt::UserRole+2: // Bold
+					m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETdata, 0x7d, intValue << 1, role));
+					return true;
+				case Qt::UserRole+3: // Italic
+					m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETdata, 0x7b, intValue << 2, role));
+					return true;
+				case Qt::UserRole+4: // Number of rows
+					m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETdata, 0x07, intValue << 4, role));
+					return true;
+			}
+			break;
+	}
+
+	// Fpr other triplet modes, set the complete data value
+	if (role == Qt::UserRole+1) {
+		m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETdata, 0x00, intValue, role));
+		return true;
+	}
+
+	return false;
+}
+
+QVariant X26Model::headerData(int section, Qt::Orientation orientation, int role) const
+{
+	if (role == Qt::DisplayRole) {
+		if (orientation == Qt::Horizontal) {
+			switch (section) {
+				case 0:
+					return tr("Row");
+				case 1:
+					return tr("Col");
+				case 2:
+					return tr("Mode");
+				case 3:
+					return tr("Data");
+				default:
+					return QVariant();
+			}
+		} else if (orientation == Qt::Vertical)
+			return QString("d%1 t%2").arg(section / 13).arg(section % 13);
+	}
+	return QVariant();
+}
+
+bool X26Model::insertRows(int row, int count, const QModelIndex &parent)
+{
+	Q_UNUSED(parent);
+
+	if (m_parentMainWidget->document()->currentSubPage()->enhancements()->size() + count > m_parentMainWidget->document()->currentSubPage()->maxEnhancements())
+		return false;
+
+	m_parentMainWidget->document()->undoStack()->push(new InsertTripletCommand(m_parentMainWidget->document(), this, row, count, m_parentMainWidget->document()->currentSubPage()->enhancements()->at(row)));
+	return true;
+}
+
+bool X26Model::insertRows(int row, int count, const QModelIndex &parent, X26Triplet triplet)
+{
+	Q_UNUSED(parent);
+
+	if (m_parentMainWidget->document()->currentSubPage()->enhancements()->size() + count > m_parentMainWidget->document()->currentSubPage()->maxEnhancements())
+		return false;
+
+	m_parentMainWidget->document()->undoStack()->push(new InsertTripletCommand(m_parentMainWidget->document(), this, row, count, triplet));
+	return true;
+}
+
+bool X26Model::removeRows(int row, int count, const QModelIndex &index)
+{
+	Q_UNUSED(index);
+
+	m_parentMainWidget->document()->undoStack()->push(new DeleteTripletCommand(m_parentMainWidget->document(), this, row, count));
+	return true;
+}
+
+/*
+Qt::ItemFlags X26Model::flags(const QModelIndex &index) const
+{
+	if (!index.isValid())
+		return QAbstractItemModel::flags(index);
+
+	if (index.column() <= 1)
+		return QAbstractItemModel::flags(index);
+	if (index.column() >= 2)
+		return QAbstractItemModel::flags(index) | Qt::ItemIsEditable;
+
+	return QAbstractItemModel::flags(index);
+}
+*/

src/qteletextmaker/x26model.h

@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2020, 2021 Gavin MacGregor
+ * Copyright (C) 2020-2024 Gavin MacGregor
  *
  * This file is part of QTeletextMaker.
  *
@@ -21,7 +21,9 @@
 #define X26MODEL_H
 
 #include <QAbstractListModel>
+
 #include "mainwidget.h"
+#include "x26menus.h"
 
 class X26Model : public QAbstractListModel
 {
@@ -29,14 +31,14 @@ class X26Model : public QAbstractListModel
 
 public:
 	X26Model(TeletextWidget *parent);
-	void setX26ListLoaded(bool);
+	void setX26ListLoaded(bool newListLoaded);
 	int rowCount(const QModelIndex &parent = QModelIndex()) const override ;
 	int columnCount(const QModelIndex &parent = QModelIndex()) const override;
 	QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const override;
 	bool setData(const QModelIndex &index, const QVariant &value, int role);
 	QVariant headerData(int section, Qt::Orientation orientation, int role) const;
-	bool insertFirstRow();
 	bool insertRows(int position, int rows, const QModelIndex &parent);
+	bool insertRows(int position, int rows, const QModelIndex &parent, X26Triplet triplet);
 	bool removeRows(int position, int rows, const QModelIndex &index);
 //	Qt::ItemFlags flags(const QModelIndex &index) const;
 
@@ -49,87 +51,23 @@ public:
 private:
 	TeletextWidget *m_parentMainWidget;
 	bool m_listLoaded;
-};
+	TeletextFontBitmap m_fontBitmap;
+	ModeTripletNames m_modeTripletNames;
 
-static const QString modeTripletName[64] {
-	// Row triplet modes
-	"Full screen colour",
-	"Full row colour",
-	"Reserved 0x02",
-	"Reserved 0x03",
+	struct tripletErrorShow {
+		QString message;
+		int columnHighlight;
+	};
 
-	"Set Active Position",
-	"Reserved 0x05",
-	"Reserved 0x06",
-	"Address row 0",
-
-	"PDC origin, source",
-	"PDC month and day",
-	"PDC cursor and start hour",
-	"PDC cursor and end hour",
-
-	"PDC cursor local offset",
-	"PDC series ID and code",
-	"Reserved 0x0e",
-	"Reserved 0x0f",
-
-	"Origin modifier",
-	"Invoke active object",
-	"Invoke adaptive object",
-	"Invoke passive object",
-
-	"Reserved 0x14",
-	"Define active object",
-	"Define adaptive object",
-	"Define passive object",
-
-	"DRCS mode",
-	"Reserved 0x19",
-	"Reserved 0x1a",
-	"Reserved 0x1b",
-
-	"Reserved 0x1c",
-	"Reserved 0x1d",
-	"Reserved 0x1e",
-	"Termination marker",
-
-	// Column triplet modes
-	"Foreground colour",
-	"G1 character",
-	"G3 character, level 1.5",
-	"Background colour",
-
-	"Reserved 0x04",
-	"Reserved 0x05",
-	"PDC cursor, start end min",
-	"Additional flash functions",
-
-	"Modified G0/G2 character set",
-	"G0 character",
-	"Reserved 0x0a",
-	"G3 character, level 2.5",
-
-	"Display attributes",
-	"DRCS character",
-	"Font style",
-	"G2 character",
-
-	"G0 character no diacritical",
-	"G0 character diacritical 1",
-	"G0 character diacritical 2",
-	"G0 character diacritical 3",
-	"G0 character diacritical 4",
-	"G0 character diacritical 5",
-	"G0 character diacritical 6",
-	"G0 character diacritical 7",
-	"G0 character diacritical 8",
-	"G0 character diacritical 9",
-	"G0 character diacritical A",
-	"G0 character diacritical B",
-	"G0 character diacritical C",
-	"G0 character diacritical D",
-	"G0 character diacritical E",
-	"G0 character diacritical F"
+	// Needs to be in the same order as enum X26TripletError in x26triplets.h
+	const tripletErrorShow m_tripletErrors[6] {
+		{ "", 0 }, // No error
+		{ "Active Position can't move up", 0 },
+		{ "Active Position can't move left within row", 1 },
+		{ "Invocation not pointing to Object Definition", 3 },
+		{ "Invoked and Defined Object types don't match", 2 },
+		{ "Origin Modifier not followed by Object Invocation", 2 }
+	};
 };
 
 #endif

src/qteletextmaker/x28commands.cpp

@@ -0,0 +1,243 @@
+/*
+ * Copyright (C) 2020-2024 Gavin MacGregor
+ *
+ * This file is part of QTeletextMaker.
+ *
+ * QTeletextMaker is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * QTeletextMaker is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with QTeletextMaker.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include "x28commands.h"
+
+#include "document.h"
+
+X28Command::X28Command(TeletextDocument *teletextDocument, QUndoCommand *parent) : QUndoCommand(parent)
+{
+	m_teletextDocument = teletextDocument;
+	m_subPageIndex = teletextDocument->currentSubPageIndex();
+}
+
+
+SetFullScreenColourCommand::SetFullScreenColourCommand(TeletextDocument *teletextDocument, int newColour, QUndoCommand *parent) : X28Command(teletextDocument, parent)
+{
+	m_oldColour = teletextDocument->currentSubPage()->defaultScreenColour();
+	m_newColour = newColour;
+
+	setText(QObject::tr("full screen colour"));
+}
+
+void SetFullScreenColourCommand::redo()
+{
+	m_teletextDocument->selectSubPageIndex(m_subPageIndex);
+	m_teletextDocument->currentSubPage()->setDefaultScreenColour(m_newColour);
+
+	emit m_teletextDocument->contentsChanged();
+	emit m_teletextDocument->pageOptionsChanged();
+}
+
+void SetFullScreenColourCommand::undo()
+{
+	m_teletextDocument->selectSubPageIndex(m_subPageIndex);
+	m_teletextDocument->currentSubPage()->setDefaultScreenColour(m_oldColour);
+
+	emit m_teletextDocument->contentsChanged();
+	emit m_teletextDocument->pageOptionsChanged();
+}
+
+bool SetFullScreenColourCommand::mergeWith(const QUndoCommand *command)
+{
+	const SetFullScreenColourCommand *newerCommand = static_cast<const SetFullScreenColourCommand *>(command);
+
+	if (m_subPageIndex != newerCommand->m_subPageIndex)
+		return false;
+
+	m_newColour = newerCommand->m_newColour;
+
+	return true;
+}
+
+
+SetFullRowColourCommand::SetFullRowColourCommand(TeletextDocument *teletextDocument, int newColour, QUndoCommand *parent) : X28Command(teletextDocument, parent)
+{
+	m_oldColour = teletextDocument->currentSubPage()->defaultRowColour();
+	m_newColour = newColour;
+
+	setText(QObject::tr("full row colour"));
+}
+
+void SetFullRowColourCommand::redo()
+{
+	m_teletextDocument->selectSubPageIndex(m_subPageIndex);
+	m_teletextDocument->currentSubPage()->setDefaultRowColour(m_newColour);
+
+	emit m_teletextDocument->contentsChanged();
+	emit m_teletextDocument->pageOptionsChanged();
+}
+
+void SetFullRowColourCommand::undo()
+{
+	m_teletextDocument->selectSubPageIndex(m_subPageIndex);
+	m_teletextDocument->currentSubPage()->setDefaultRowColour(m_oldColour);
+
+	emit m_teletextDocument->contentsChanged();
+	emit m_teletextDocument->pageOptionsChanged();
+}
+
+bool SetFullRowColourCommand::mergeWith(const QUndoCommand *command)
+{
+	const SetFullRowColourCommand *newerCommand = static_cast<const SetFullRowColourCommand *>(command);
+
+	if (m_subPageIndex != newerCommand->m_subPageIndex)
+		return false;
+
+	m_newColour = newerCommand->m_newColour;
+
+	return true;
+}
+
+
+SetCLUTRemapCommand::SetCLUTRemapCommand(TeletextDocument *teletextDocument, int newMap, QUndoCommand *parent) : X28Command(teletextDocument, parent)
+{
+	m_oldMap = teletextDocument->currentSubPage()->colourTableRemap();
+	m_newMap = newMap;
+
+	setText(QObject::tr("CLUT remapping"));
+}
+
+void SetCLUTRemapCommand::redo()
+{
+	m_teletextDocument->selectSubPageIndex(m_subPageIndex);
+	m_teletextDocument->currentSubPage()->setColourTableRemap(m_newMap);
+
+	emit m_teletextDocument->contentsChanged();
+	emit m_teletextDocument->pageOptionsChanged();
+}
+
+void SetCLUTRemapCommand::undo()
+{
+	m_teletextDocument->selectSubPageIndex(m_subPageIndex);
+	m_teletextDocument->currentSubPage()->setColourTableRemap(m_oldMap);
+
+	emit m_teletextDocument->contentsChanged();
+	emit m_teletextDocument->pageOptionsChanged();
+}
+
+bool SetCLUTRemapCommand::mergeWith(const QUndoCommand *command)
+{
+	const SetCLUTRemapCommand *newerCommand = static_cast<const SetCLUTRemapCommand *>(command);
+
+	if (m_subPageIndex != newerCommand->m_subPageIndex)
+		return false;
+
+	m_newMap = newerCommand->m_newMap;
+
+	return true;
+}
+
+
+SetBlackBackgroundSubstCommand::SetBlackBackgroundSubstCommand(TeletextDocument *teletextDocument, bool newSub, QUndoCommand *parent) : X28Command(teletextDocument, parent)
+{
+	m_oldSub = teletextDocument->currentSubPage()->blackBackgroundSubst();
+	m_newSub = newSub;
+
+	setText(QObject::tr("black background substitution"));
+}
+
+void SetBlackBackgroundSubstCommand::redo()
+{
+	m_teletextDocument->selectSubPageIndex(m_subPageIndex);
+	m_teletextDocument->currentSubPage()->setBlackBackgroundSubst(m_newSub);
+
+	emit m_teletextDocument->contentsChanged();
+	emit m_teletextDocument->pageOptionsChanged();
+}
+
+void SetBlackBackgroundSubstCommand::undo()
+{
+	m_teletextDocument->selectSubPageIndex(m_subPageIndex);
+	m_teletextDocument->currentSubPage()->setBlackBackgroundSubst(m_oldSub);
+
+	emit m_teletextDocument->contentsChanged();
+	emit m_teletextDocument->pageOptionsChanged();
+}
+
+bool SetBlackBackgroundSubstCommand::mergeWith(const QUndoCommand *command)
+{
+	const SetBlackBackgroundSubstCommand *newerCommand = static_cast<const SetBlackBackgroundSubstCommand *>(command);
+
+	if (m_subPageIndex != newerCommand->m_subPageIndex)
+		return false;
+
+	setObsolete(true);
+	return true;
+}
+
+
+SetColourCommand::SetColourCommand(TeletextDocument *teletextDocument, int colourIndex, int newColour, QUndoCommand *parent) : X28Command(teletextDocument, parent)
+{
+	m_colourIndex = colourIndex;
+	m_oldColour = teletextDocument->currentSubPage()->CLUT(colourIndex);
+	m_newColour = newColour;
+
+	setText(QObject::tr("colour change"));
+}
+
+void SetColourCommand::redo()
+{
+	m_teletextDocument->selectSubPageIndex(m_subPageIndex);
+	m_teletextDocument->currentSubPage()->setCLUT(m_colourIndex, m_newColour);
+
+	emit m_teletextDocument->colourChanged(m_colourIndex);
+	emit m_teletextDocument->contentsChanged();
+}
+
+void SetColourCommand::undo()
+{
+	m_teletextDocument->selectSubPageIndex(m_subPageIndex);
+	m_teletextDocument->currentSubPage()->setCLUT(m_colourIndex, m_oldColour);
+
+	emit m_teletextDocument->colourChanged(m_colourIndex);
+	emit m_teletextDocument->contentsChanged();
+}
+
+
+ResetCLUTCommand::ResetCLUTCommand(TeletextDocument *teletextDocument, int colourTable, QUndoCommand *parent) : X28Command(teletextDocument, parent)
+{
+	m_colourTable = colourTable;
+	for (int i=m_colourTable*8; i<m_colourTable*8+8; i++)
+		m_oldColourEntry[i&7] = teletextDocument->currentSubPage()->CLUT(i);
+
+	setText(QObject::tr("CLUT %1 reset").arg(m_colourTable));
+}
+
+void ResetCLUTCommand::redo()
+{
+	m_teletextDocument->selectSubPageIndex(m_subPageIndex);
+	for (int i=m_colourTable*8; i<m_colourTable*8+8; i++) {
+		m_teletextDocument->currentSubPage()->setCLUT(i, m_teletextDocument->currentSubPage()->CLUT(i, 0));
+		emit m_teletextDocument->colourChanged(i);
+	}
+
+	emit m_teletextDocument->contentsChanged();
+}
+
+void ResetCLUTCommand::undo()
+{
+	m_teletextDocument->selectSubPageIndex(m_subPageIndex);
+	for (int i=m_colourTable*8; i<m_colourTable*8+8; i++) {
+		m_teletextDocument->currentSubPage()->setCLUT(i, m_oldColourEntry[i&7]);
+		emit m_teletextDocument->colourChanged(i);
+	}
+
+	emit m_teletextDocument->contentsChanged();
+}

src/qteletextmaker/x28commands.h

@@ -0,0 +1,126 @@
+/*
+ * Copyright (C) 2020-2024 Gavin MacGregor
+ *
+ * This file is part of QTeletextMaker.
+ *
+ * QTeletextMaker is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * QTeletextMaker is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with QTeletextMaker.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#ifndef X28COMMANDS_H
+#define X28COMMANDS_H
+
+#include <QUndoCommand>
+
+#include "document.h"
+
+class X28Command : public QUndoCommand
+{
+public:
+	X28Command(TeletextDocument *teletextDocument, QUndoCommand *parent = 0);
+
+protected:
+	TeletextDocument *m_teletextDocument;
+	int m_subPageIndex;
+};
+
+class SetFullScreenColourCommand : public X28Command
+{
+public:
+	enum { Id = 301 };
+
+	SetFullScreenColourCommand(TeletextDocument *teletextDocument, int newColour, QUndoCommand *parent = 0);
+
+	void redo() override;
+	void undo() override;
+	bool mergeWith(const QUndoCommand *command) override;
+	int id() const override { return Id; }
+
+private:
+	int m_oldColour, m_newColour;
+};
+
+class SetFullRowColourCommand : public X28Command
+{
+public:
+	enum { Id = 302 };
+
+	SetFullRowColourCommand(TeletextDocument *teletextDocument, int newColour, QUndoCommand *parent = 0);
+
+	void redo() override;
+	void undo() override;
+	bool mergeWith(const QUndoCommand *command) override;
+	int id() const override { return Id; }
+
+private:
+	int m_oldColour, m_newColour;
+};
+
+class SetCLUTRemapCommand : public X28Command
+{
+public:
+	enum { Id = 303 };
+
+	SetCLUTRemapCommand(TeletextDocument *teletextDocument, int newMap, QUndoCommand *parent = 0);
+
+	void redo() override;
+	void undo() override;
+	bool mergeWith(const QUndoCommand *command) override;
+	int id() const override { return Id; }
+
+private:
+	int m_oldMap, m_newMap;
+};
+
+class SetBlackBackgroundSubstCommand : public X28Command
+{
+public:
+	enum { Id = 304 };
+
+	SetBlackBackgroundSubstCommand(TeletextDocument *teletextDocument, bool newSub, QUndoCommand *parent = 0);
+
+	void redo() override;
+	void undo() override;
+	bool mergeWith(const QUndoCommand *command) override;
+	int id() const override { return Id; }
+
+private:
+	int m_oldSub, m_newSub;
+};
+
+class SetColourCommand : public X28Command
+{
+public:
+	SetColourCommand(TeletextDocument *teletextDocument, int colourIndex, int newColour, QUndoCommand *parent = 0);
+
+	void redo() override;
+	void undo() override;
+
+private:
+	int m_colourIndex, m_oldColour, m_newColour;
+};
+
+class ResetCLUTCommand : public X28Command
+{
+public:
+	ResetCLUTCommand(TeletextDocument *teletextDocument, int colourTable, QUndoCommand *parent = 0);
+
+	void redo() override;
+	void undo() override;
+
+private:
+	int m_colourTable;
+	int m_oldColourEntry[8];
+};
+
+#endif

x26model.cpp

@@ -1,827 +0,0 @@
-/*
- * Copyright (C) 2020, 2021 Gavin MacGregor
- *
- * This file is part of QTeletextMaker.
- *
- * QTeletextMaker is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * QTeletextMaker is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with QTeletextMaker.  If not, see <https://www.gnu.org/licenses/>.
- */
-
-#include "x26model.h"
-
-#include <QList>
-
-#include "x26commands.h"
-
-X26Model::X26Model(TeletextWidget *parent): QAbstractListModel(parent)
-{
-	m_parentMainWidget = parent;
-	m_listLoaded = true;
-}
-
-void X26Model::setX26ListLoaded(bool newListLoaded)
-{
-	beginResetModel();
-	m_listLoaded = newListLoaded;
-	endResetModel();
-}
-
-int X26Model::rowCount(const QModelIndex & /*parent*/) const
-{
-	return m_listLoaded ? m_parentMainWidget->document()->currentSubPage()->enhancements()->size() : 0;
-}
-
-int X26Model::columnCount(const QModelIndex & /*parent*/) const
-{
-	return 4;
-}
-
-QVariant X26Model::data(const QModelIndex &index, int role) const
-{
-	int mode = m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).mode();
-
-	// Qt::UserRole will always return the raw values
-	if (role == Qt::UserRole)
-		switch (index.column()) {
-			case 0:
-				return m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).address();
-			case 1:
-				return m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).mode();
-			case 2:
-				return m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).data();
-			default:
-				return QVariant();
-		}
-
-	if (role == Qt::DisplayRole || role == Qt::EditRole)
-		switch (index.column()) {
-			case 0:
-				// Show row number only if address part of triplet actually represents a row
-				// i.e. Full row colour, Set Active Position and Origin Modifier
-				if (!m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).isRowTriplet())
-					return QVariant();
-				// For Origin Modifier address of 40 refers to same row, so show it as 0
-				if (m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).mode() == 0x10) {
-					if (m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).address() == 40)
-						return 0;
-					else
-						return m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).addressRow();
-				}
-				if (m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).mode() == 0x01 || m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).mode() == 0x04)
-					return m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).addressRow();
-				else
-					return QVariant();
-			case 1:
-				if (!m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).isRowTriplet())
-					return m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).addressColumn();
-				// For Set Active Position and Origin Modifier, data is the column
-				else if (mode == 0x04 || mode == 0x10)
-					return m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).data();
-				else
-					return QVariant();
-		}
-
-	if (!m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).isRowTriplet())
-		mode |= 0x20;
-
-	QString result;
-
-	if (role == Qt::DisplayRole) {
-		if (index.column() == 2)
-			return (modeTripletName[mode]);
-		// Column 3 - describe effects of data/address triplet parameters in plain English
-		switch (mode) {
-			case 0x01: // Full row colour
-			case 0x07: // Address row 0
-				if ((m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).data() & 0x60) == 0x60)
-					result = ", down to bottom";
-				else if ((m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).data() & 0x60) == 0x00)
-					result = ", this row only";
-				// fall-through
-			case 0x00: // Full screen colour
-				if (!(result.isEmpty()) || (m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).data() & 0x60) == 0x00) {
-					result.prepend(QString("CLUT %1:%2").arg((m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).data() & 0x18) >> 3).arg(m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).data() & 0x07));
-					return result;
-				}
-				break;
-			case 0x04: // Set Active Position
-			case 0x10: // Origin Modifier
-				// For Set Active Position and Origin Modifier, data is the column, so return blank
-				return QVariant();
-			case 0x11 ... 0x13: // Invoke object
-				switch (m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).address() & 0x18) {
-					case 0x08:
-						return QString("Local: d%1 t%2").arg((m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).data() >> 4) | ((m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).address() & 0x01) << 3)).arg(m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).data() & 0x0f);
-					case 0x10:
-						result = "POP";
-						break;
-					case 0x18:
-						result = "GPOP";
-						break;
-					// case 0x00: shouldn't happen since that would make a column triplet, not a row triplet
-				}
-				result.append(QString(": subpage %1 pkt %2 trplt %3 bits ").arg(m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).data() & 0x0f).arg((m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).address() & 0x03) + 1).arg(((m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).data() & 0x60) >> 5) * 3 + (mode & 0x03)));
-				if (m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).data() & 0x10)
-					result.append("10-18");
-				else
-					result.append("1-9");
-				return result;
-			case 0x15 ... 0x17: // Define object
-				result = (QString("Local: d%1 t%2, ").arg((m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).data() >> 4) | ((m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).address() & 1) << 3)).arg(m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).data() & 0x0f));
-				switch (m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).address() & 0x18) {
-					case 0x08:
-						result.append("L2.5 only");
-						break;
-					case 0x10:
-						result.append("L3.5 only");
-						break;
-					case 0x18:
-						result.append("L2.5 and 3.5");
-						break;
-					// case 0x00: shouldn't happen since that would make a column triplet, not a row triplet
-				}
-				return result;
-			case 0x18: // DRCS mode
-				result = (m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).data() & 0x40) == 0x40 ? "Normal" : "Global";
-				result.append(QString(": subpage %1, ").arg(m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).data() & 0x0f));
-				switch (m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).data() & 0x30) {
-					case 0x10:
-						result.append("L2.5 only");
-						break;
-					case 0x20:
-						result.append("L3.5 only");
-						break;
-					case 0x30:
-						result.append("L2.5 and 3.5");
-						break;
-					case 0x00:
-						result.append("Reserved");
-						break;
-				}
-				return result;
-			case 0x1f: // Termination
-				switch (m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).data() & 0x07) {
-					case 0x00:
-						return "Intermed (G)POP subpage. End of object, more follows";
-						break;
-					case 0x01:
-						return "Intermed (G)POP subpage. End of last object on page";
-						break;
-					case 0x02:
-						return "Last (G)POP subpage. End of object, more follows";
-						break;
-					case 0x03:
-						return "Last (G)POP subpage. End of last object on page";
-						break;
-					case 0x04:
-						return "Local object definitions. End of object, more follows";
-						break;
-					case 0x05:
-						return "Local object definitions. End of last object on page";
-						break;
-					case 0x06:
-						return "End of local enhance data. Local objects follow";
-						break;
-					case 0x07:
-						return "End of local enhance data. No local objects";
-						break;
-				}
-				break;
-			case 0x08 ... 0x0d: // PDC
-				return QString("0x%1").arg(m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).data(), 2, 16, QChar('0'));
-			case 0x20: // Foreground colour
-			case 0x23: // Background colour
-				if (!(m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).data() & 0x60))
-					return QString("CLUT %1:%2").arg((m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).data() & 0x18) >> 3).arg(m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).data() & 0x07);
-				break;
-			case 0x21: // G1 mosaic character
-			case 0x22: // G3 mosaic character at level 1.5
-			case 0x29: // G0 character
-			case 0x2b: // G3 mosaic character at level >=2.5
-			case 0x2f ... 0x3f: // G2 character or G0 diacritical mark
-				if (m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).data() >= 0x20)
-					return QString("0x%1").arg(m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).data(), 2, 16);
-				break;
-			case 0x27: // Flash functions
-				if (m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).data() < 0x18) {
-					switch (m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).data() & 0x03) {
-						case 0x00:
-							result = "Steady";
-							break;
-						case 0x01:
-							result = "Normal";
-							break;
-						case 0x02:
-							result = "Invert";
-							break;
-						case 0x03:
-							result = "Adj CLUT";
-							break;
-					}
-					switch (m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).data() & 0x1c) {
-						case 0x00:
-							result.append(", 1Hz");
-							break;
-						case 0x04:
-							result.append(", 2Hz ph 1");
-							break;
-						case 0x08:
-							result.append(", 2Hz ph 2");
-							break;
-						case 0x0c:
-							result.append(", 2Hz ph 3");
-							break;
-						case 0x10:
-							result.append(", 2Hz inc");
-							break;
-						case 0x14:
-							result.append(", 2Hz dec");
-							break;
-					}
-					return result;
-				}
-				break;
-			//TODO case 0x28: // G0 and G2 designation
-			case 0x2c: // Display attributes
-				if (m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).data() & 0x02)
-					result.append("Boxing ");
-				if (m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).data() & 0x04)
-					result.append("Conceal ");
-				if (m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).data() & 0x10)
-					result.append("Invert ");
-				if (m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).data() & 0x20)
-					result.append("Underline ");
-				if (result.isEmpty())
-					result = "None";
-				else
-					// Chop off the last space
-					result.chop(1);
-				switch (m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).data() & 0x41) {
-					case 0x00:
-						result.append(", normal size");
-						break;
-					case 0x01:
-						result.append(", double height");
-						break;
-					case 0x40:
-						result.append(", double width");
-						break;
-					case 0x41:
-						result.append(", double size");
-						break;
-				}
-				return result;
-			case 0x2d: // DRCS character
-				result = (m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).data() & 0x40) == 0x40 ? "Normal" : "Global";
-				result.append(QString(": %1").arg(m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).data() & 0x3f));
-				return result;
-			case 0x2e: // Font style
-				if (m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).data() & 0x01)
-					result.append("Proportional ");
-				if (m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).data() & 0x02)
-					result.append("Bold ");
-				if (m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).data() & 0x04)
-					result.append("Italic ");
-				if (result.isEmpty())
-					result = "None";
-				else
-					// Chop off the last space
-					result.chop(1);
-				result.append(QString(", %1 row(s)").arg(m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).data() >> 4));
-				return result;
-			case 0x28: // Modified G0 and G2 character set
-			case 0x26: // PDC
-				return QString("0x%1").arg(m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).data(), 2, 16, QChar('0'));
-			default: // Reserved
-				return QString("Reserved 0x%1").arg(m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).data(), 2, 16, QChar('0'));
-		}
-		// Reserved mode or data
-		return QString("Reserved 0x%1").arg(m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).data(), 2, 16, QChar('0'));
-	}
-
-	if (role == Qt::EditRole && index.column() == 2) {
-		if (!m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).isRowTriplet())
-			mode |= 0x20;
-		return mode;
-	}
-
-	if (role <= Qt::UserRole)
-		return QVariant();
-
-	switch (role) {
-		case Qt::UserRole+1:
-			switch (mode) {
-				case 0x00: // Full screen colour
-				case 0x01: // Full row colour
-				case 0x07: // Address row 0
-				case 0x20: // Foreground colour
-				case 0x23: // Background colour
-					// Colour index
-					return m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).data() & 0x1f;
-				case 0x11 ... 0x13: // Invoke object
-					// Object source: Local, POP or GPOP
-					return ((m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).address() & 0x18) >> 3) - 1;
-					break;
-				case 0x15 ... 0x17: // Define object
-					// Required at which levels
-					return ((m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).address() & 0x18) >> 3) - 1;
-				case 0x18: // DRCS mode
-					// Required at which levels
-					return ((m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).data() & 0x30) >> 4) - 1;
-				case 0x1f: // Termination
-					// Intermed POP subpage|Last POP subpage|Local Object|Local enhance
-					return ((m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).data() & 0x06) >> 1);
-				case 0x27: // Flash functions
-					// Flash mode
-					return m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).data() & 0x03;
-				case 0x2c: // Display attributes
-					// Text size
-					return (m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).data() & 0x01) | ((m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).data() & 0x40) >> 5);
-				case 0x2d: // DRCS character
-					// Normal or Global
-					return (m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).data() & 0x40) == 0x40;
-				case 0x2e: // Font style
-					// Proportional
-					return (m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).data() & 0x01) == 0x01;
-				default:
-					return m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).data();
-			}
-			break;
-
-		case Qt::UserRole+2:
-			switch (mode) {
-				case 0x01: // Full row colour
-				case 0x07: // Address row 0
-					// "this row only" or "down to bottom"
-					return (m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).data() & 0x60) == 0x60;
-				case 0x11 ... 0x13: // Invoke object
-					if ((m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).address() & 0x08) == 0x08)
-						// Local object: Designation code
-						return ((m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).address() & 0x01) << 3) | ((m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).data() & 0x70) >> 4);
-					else
-						// (G)POP object: Subpage
-						return m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).data() & 0x0f;
-					break;
-				case 0x15 ... 0x17: // Define object
-					// Local object: Designation code
-					return ((m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).address() & 0x01) << 3) | ((m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).data() & 0x70) >> 4);
-				case 0x1f: // Termination
-					// More follows/Last
-					return (m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).data() & 0x01) == 0x01;
-				case 0x27: // Flash functions
-					// Flash rate and phase
-					return m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).data() >> 2;
-				case 0x2c: // Display attributes
-					// Boxing/window
-					return (m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).data() & 0x02) == 0x02;
-				case 0x2d: // DRCS character
-					// Character number
-					return m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).data() & 0x3f;
-				case 0x2e: // Font style
-					// Bold
-					return (m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).data() & 0x02) == 0x02;
-			}
-			break;
-
-		case Qt::UserRole+3:
-			switch (mode) {
-				case 0x11 ... 0x13: // Invoke object
-					if ((m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).address() & 0x08) == 0x08)
-						// Local object: Triplet number
-						return m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).data() & 0x0f;
-					else
-						// (G)POP object: Pointer location
-						return (m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).address() & 0x03) + 1;
-					break;
-				case 0x15 ... 0x17: // Define object
-					// Local object: Triplet number
-					return m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).data() & 0x0f;
-				case 0x18: // DRCS mode
-					// Normal or Global
-					return (m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).data() & 0x40) == 0x40;
-				case 0x2c: // Display attributes
-					// Conceal
-					return (m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).data() & 0x04) == 0x04;
-				case 0x2e: // Font style
-					// Italics
-					return (m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).data() & 0x04) == 0x04;
-			}
-			break;
-
-		case Qt::UserRole+4:
-			switch (mode) {
-				case 0x11 ... 0x13: // Invoke object
-					// (G)POP object: Triplet number
-					return m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).data() >> 5;
-				case 0x18: // DRCS mode
-					// Subpage
-					return m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).data() & 0x0f;
-				case 0x2c: // Display attributes
-					// Invert
-					return (m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).data() & 0x10) == 0x10;
-				case 0x2e: // Font style
-					// Number of rows
-					return m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).data() >> 4;
-			}
-			break;
-
-		case Qt::UserRole+5:
-			switch (mode) {
-				case 0x11 ... 0x13: // Invoke object
-					// (G)POP object: Pointer position
-					return (m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).data() & 0x10) >> 4;
-				case 0x2c: // Display attributes
-					// Underline/Separated
-					return (m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).data() & 0x20) == 0x20;
-			}
-			break;
-	}
-
-	return QVariant();
-}
-
-bool X26Model::setData(const QModelIndex &index, const QVariant &value, int role)
-{
-	if (!index.isValid())
-		return false;
-
-	// Raw address, mode and data values
-	if (role == Qt::UserRole && value.canConvert<int>() && index.column() <= 2) {
-		m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), index.column(), 0x00, value.toInt(), role));
-
-		return true;
-	}
-
-	int mode = m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).modeExt();
-
-	// Cooked row, column and triplet mode
-	if (role == Qt::EditRole && value.canConvert<int>()) {
-		int intValue = value.toInt();
-		if (intValue < 0)
-			return false;
-
-		switch (index.column()) {
-			case 0: // Cooked row
-				// Maximum row is 24
-				if (intValue > 24)
-					return false;
-				// Set Active Position and Full Row Colour can't select row 0
-				if (((mode == 0x04) || (mode == 0x01)) && intValue == 0)
-					return false;
-				// For Origin Modifier address of 40 refers to same row
-				if (mode == 0x10 && intValue == 24) {
-					m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETaddress, 0x00, 40, role));
-					return true;
-				}
-				// Others use address 40 for row 24
-				m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETaddress, 0x00, (intValue == 24) ? 40 : intValue+40, role));
-				return true;
-
-			case 1: // Cooked column
-				// Origin modifier allows columns up to 71
-				if (intValue > (mode == 0x10 ? 71 : 39))
-					return false;
-				// For Set Active Position and Origin Modifier, data is the column
-				if (mode == 0x04 || mode == 0x10)
-					m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETdata, 0x00, intValue, role));
-				else
-					m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETaddress, 0x00, intValue, role));
-				return true;
-
-			case 2: // Cooked triplet mode
-				if (intValue < 0x20 && !m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).isRowTriplet()) {
-					// Changing mode from column triplet to row triplet
-					m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETaddress, 0x00, 41, role));
-					m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETdata, 0x00, 0, role));
-				}
-				if (intValue >= 0x20 && m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).isRowTriplet()) {
-					// Changing mode from row triplet to column triplet
-					m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETaddress, 0x00, 0, role));
-					m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETdata, 0x00, 0, role));
-				}
-				m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETmode, 0x00, intValue & 0x1f, role));
-
-				// Now set data values to avoid reserved bits if we need to
-				// FIXME this can rather messily push multiple EditTripletCommands
-				// that rely on mergeWith to tidy them up afterwards
-				// Also this just flips bits, where we could use default values
-				switch (intValue) {
-					case 0x00: // Full screen colour
-					case 0x20: // Foreground colour
-					case 0x23: // Background colour
-						// Both S1 and S0 reserved bits must be clear
-						if (m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).data() & 0x60)
-							m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETdata, 0x1f, 0x00, role));
-						break;
-					case 0x07: // Address row 0
-						// Address locked to 63
-						if (m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).address() != 63)
-							m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETaddress, 0x00, 63, role));
-						// fall-through
-					case 0x01: // Full row colour
-						// S1 and S0 bits need to be the same
-						if ((m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).data() & 0x60) != 0x00 && (m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).data() & 0x60) != 0x60)
-							m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETdata, 0x1f, 0x00, role));
-						break;
-					case 0x04: // Set Active Position
-						// Data range 0-39
-						if (m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).data() >= 40)
-							m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETdata, 0x00, 0, role));
-						break;
-					case 0x10: // Origin modifier
-						// Data range 0-71
-						if (m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).data() >= 72)
-							m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETdata, 0x00, 0, role));
-						break;
-					case 0x11: // Invoke Active Object
-					case 0x12: // Invoke Adaptive Object
-					case 0x13: // Invoke Passive Object
-					case 0x15: // Define Active Object
-					case 0x16: // Define Adaptive Object
-					case 0x17: // Define Passive Object
-						// Bit 3 of Address is reserved
-						if ((m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).address() & 0x04) == 0x04)
-							m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETaddress, 0x7b, 0x00, role));
-						// BUG we're only dealing with Local Object Definitions at the moment!
-						// If source is Local, triplet number must be in range 0-12
-						if (((m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).address() & 0x18) == 0x08) && ((m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).data() & 0x0f) >= 12))
-							m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETdata, 0x70, 0x00, role));
-						break;
-					case 0x18: // DRCS mode
-						// At least one of the L1 and L0 bits must be set
-						if ((m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).data() & 0x30) == 0x00)
-							m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETdata, 0x4f, 0x30, role));
-						break;
-					case 0x1f: // Termination marker
-						// Address locked to 63
-						if (m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).address() != 63)
-							m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETaddress, 0x00, 63, role));
-						// Clear reserved bits D6-D3
-						if (m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).data() & 0x78)
-							m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETdata, 0x07, 0x00, role));
-						break;
-					case 0x21: // G1 mosaic character
-					case 0x22: // G3 mosaic character at level 1.5
-					case 0x29: // G0 character
-					case 0x2b: // G3 mosaic character at level >=2.5
-					case 0x2f ... 0x3f: // G2 character or G0 diacritical mark
-						// Data range 0x20-0x7f
-						if (m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).data() < 0x20)
-							m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETdata, 0x00, 0x20, role));
-						break;
-					case 0x27: // Additional flash functions
-						// D6 and D5 must be clear, D4 and D3 set is reserved phase
-						if (m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).data() >= 0x18)
-							m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETdata, 0x00, 0, role));
-						break;
-					case 0x28: // Display attributes
-					case 0x2e: // Font style
-						// Clear reserved bit D3
-						if (m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).data() & 0x08)
-							m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETdata, 0x77, 0x00, role));
-						break;
-					case 0x2d: // DRCS character
-						// D5-D0 range 0-47
-						if ((m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).data() & 0x3f) >= 48)
-							m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETdata, 0x40, 0x77, role));
-						break;
-				};
-				return true;
-		}
-		return false;
-	}
-
-	if (role <= Qt::UserRole || !value.canConvert<int>())
-		return false;
-
-	int intValue = value.toInt();
-	if (intValue < 0)
-		return false;
-
-	// Triplet data
-	switch (role) {
-		case Qt::UserRole+1:
-			switch (mode) {
-				case 0x01: // Full row colour
-				case 0x07: // Address row 0
-					// Colour index
-					m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETdata, 0x60, value.toInt(), role));
-					break;
-				case 0x11 ... 0x13: // Invoke object
-					// Object source: Local, POP or GPOP
-					m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETaddress, 0x27, (value.toInt()+1) << 3, role));
-					break;
-				case 0x15 ... 0x17: // Define object
-					// Required at which levels
-					m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETaddress, 0x27, (value.toInt()+1) << 3, role));
-					break;
-				case 0x18: // DRCS Mode
-					// Required at which levels
-					m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETdata, 0x4f, (value.toInt()+1) << 4, role));
-					break;
-				case 0x1f: // Termination
-					// Intermed POP subpage|Last POP subpage|Local Object|Local enhance
-					m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETdata, 0x01, value.toInt() << 1, role));
-					break;
-				case 0x27: // Flash functions
-					// Flash mode
-					m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETdata, 0x1c, value.toInt(), role));
-					break;
-				case 0x2c: // Display attributes
-					// Text size
-					m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETdata, 0x36, ((value.toInt() & 0x02) << 5) | (value.toInt() & 0x01), role));
-					break;
-				case 0x2d: // DRCS character
-					// Normal or Global
-					m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETdata, 0x3f, value.toInt() << 6, role));
-					break;
-				case 0x2e: // Font style
-					// Proportional
-					m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETdata, 0x7e, value.toInt(), role));
-					break;
-				default: // Others set the complete data value
-					m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETdata, 0x00, value.toInt(), role));
-			}
-			break;
-
-		case Qt::UserRole+2:
-			switch (mode) {
-				case 0x00: // Full screen colour
-				case 0x01: // Full row colour
-				case 0x07: // Address row 0
-					// "this row only" or "down to bottom"
-					m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETdata, 0x1f, value.toInt() * 0x60, role));
-					break;
-				case 0x11 ... 0x13: // Invoke object
-					if ((m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).address() & 0x08) == 0x08) {
-						// Local object: Designation code
-						m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETdata, 0x0f, (value.toInt() & 0x07) << 4, role));
-						m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETaddress, 0x38, value.toInt() >> 3, role));
-					} else
-						// (G)POP object: Subpage
-						m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETdata, 0x30, value.toInt(), role));
-					break;
-				case 0x15 ... 0x17: // Define object
-					// Local object: Designation code
-					m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETdata, 0x0f, (value.toInt() & 0x07) << 4, role));
-					m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETaddress, 0x38, value.toInt() >> 3, role));
-					break;
-				case 0x1f: // Termination
-					// More follows/Last
-					m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETdata, 0x06, value.toInt(), role));
-					break;
-				case 0x27: // Flash functions
-					// Flash rate and phase
-					m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETdata, 0x03, value.toInt() << 2, role));
-					break;
-				case 0x2c: // Display attributes
-					// Boxing/window
-					m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETdata, 0x7d, value.toInt() << 1, role));
-					break;
-				case 0x2d: // DRCS character
-					// Character number
-					m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETdata, 0x40, value.toInt(), role));
-					break;
-				case 0x2e: // Font style
-					// Bold
-					m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETdata, 0x7d, value.toInt() << 1, role));
-					break;
-			}
-			break;
-
-		case Qt::UserRole+3:
-			switch (mode) {
-				case 0x11 ... 0x13: // Invoke object
-					if ((m_parentMainWidget->document()->currentSubPage()->enhancements()->at(index.row()).address() & 0x08) == 0x08)
-						// Local object: triplet number
-						m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETdata, 0x70, value.toInt(), role));
-					else
-						// (G)POP object: Pointer location
-						m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETaddress, 0x7c, value.toInt() - 1, role));
-					break;
-				case 0x15 ... 0x17: // Define object
-					// Local object: triplet number
-					m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETdata, 0x70, value.toInt(), role));
-					break;
-				case 0x18: // DRCS Mode
-					// Normal or Global
-					m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETdata, 0x3f, value.toInt() << 6, role));
-					break;
-				case 0x2c: // Display attributes
-					// Conceal
-					m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETdata, 0x7b, value.toInt() << 2, role));
-					break;
-				case 0x2e: // Font style
-					// Italics
-					m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETdata, 0x7b, value.toInt() << 2, role));
-					break;
-			}
-			break;
-
-		case Qt::UserRole+4:
-			switch (mode) {
-				case 0x11 ... 0x13: // Invoke object
-					// (G)POP object: Triplet number
-					m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETdata, 0x1f, value.toInt() << 5, role));
-					break;
-				case 0x18: // DRCS Mode
-					// Subpage
-					m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETdata, 0x70, value.toInt(), role));
-					break;
-				case 0x2c: // Display attributes
-					// Invert
-					m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETdata, 0x6f, value.toInt() << 4, role));
-					break;
-				case 0x2e: // Font style
-					// Number of rows
-					m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETdata, 0x07, value.toInt() << 4, role));
-					break;
-			}
-			break;
-
-		case Qt::UserRole+5:
-			switch (mode) {
-				case 0x11 ... 0x13: // Invoke object
-					// (G)POP object: Pointer position
-					m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETdata, 0x6f, value.toInt() << 4, role));
-					break;
-				case 0x2c: // Display attributes
-					// Underline/Separated
-					m_parentMainWidget->document()->undoStack()->push(new EditTripletCommand(m_parentMainWidget->document(), this, index.row(), EditTripletCommand::ETdata, 0x5f, value.toInt() << 5, role));
-					break;
-			}
-			break;
-
-	}
-	return true;
-}
-
-QVariant X26Model::headerData(int section, Qt::Orientation orientation, int role) const
-{
-	if (role == Qt::DisplayRole) {
-		if (orientation == Qt::Horizontal) {
-			switch (section) {
-				case 0:
-					return tr("Row");
-				case 1:
-					return tr("Col");
-				case 2:
-					return tr("Mode");
-				case 3:
-					return tr("Data");
-				default:
-					return QVariant();
-			}
-		} else if (orientation == Qt::Vertical)
-			return QString("d%1 t%2").arg(section / 13).arg(section % 13);
-	}
-	return QVariant();
-}
-
-bool X26Model::insertFirstRow()
-{
-	m_parentMainWidget->document()->undoStack()->push(new InsertTripletCommand(m_parentMainWidget->document(), this, 0, 1, X26Triplet(63, 31, 7)));
-
-	return true;
-}
-
-bool X26Model::insertRows(int row, int count, const QModelIndex &parent)
-{
-	Q_UNUSED(parent);
-
-	m_parentMainWidget->document()->undoStack()->push(new InsertTripletCommand(m_parentMainWidget->document(), this, row, count, m_parentMainWidget->document()->currentSubPage()->enhancements()->at(row)));
-	return true;
-}
-
-bool X26Model::removeRows(int row, int count, const QModelIndex &index)
-{
-	Q_UNUSED(index);
-
-	m_parentMainWidget->document()->undoStack()->push(new DeleteTripletCommand(m_parentMainWidget->document(), this, row, count));
-	return true;
-}
-
-/*
-Qt::ItemFlags X26Model::flags(const QModelIndex &index) const
-{
-	if (!index.isValid())
-		return QAbstractItemModel::flags(index);
-
-	if (index.column() <= 1)
-		return QAbstractItemModel::flags(index);
-	if (index.column() >= 2)
-		return QAbstractItemModel::flags(index) | Qt::ItemIsEditable;
-
-	return QAbstractItemModel::flags(index);
-}
-*/

x26triplets.cpp

@@ -1,52 +0,0 @@
-/*
- * Copyright (C) 2020, 2021 Gavin MacGregor
- *
- * This file is part of QTeletextMaker.
- *
- * QTeletextMaker is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * QTeletextMaker is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with QTeletextMaker.  If not, see <https://www.gnu.org/licenses/>.
- */
-
-#include "x26triplets.h"
-
-X26Triplet::X26Triplet(int address, int mode, int data)
-{
-	m_address = address;
-	m_mode = mode;
-	m_data = data;
-}
-
-void X26Triplet::setAddress(int address)
-{
-	m_address = address;
-}
-
-void X26Triplet::setMode(int mode)
-{
-	m_mode = mode;
-}
-
-void X26Triplet::setData(int data)
-{
-	m_data = data;
-}
-
-void X26Triplet::setAddressRow(int addressRow)
-{
-	m_address = (addressRow == 24) ? 40 : addressRow+40;
-}
-
-void X26Triplet::setAddressColumn(int addressColumn)
-{
-	m_address = addressColumn;
-}

x26triplets.h

@@ -1,52 +0,0 @@
-/*
- * Copyright (C) 2020, 2021 Gavin MacGregor
- *
- * This file is part of QTeletextMaker.
- *
- * QTeletextMaker is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * QTeletextMaker is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with QTeletextMaker.  If not, see <https://www.gnu.org/licenses/>.
- */
-
-#ifndef X26TRIPLETS_H
-#define X26TRIPLETS_H
-
-class X26Triplet
-{
-public:
-	X26Triplet() {}
-//	X26Triplet(const X26Triplet &other);
-
-//	X26Triplet &operator=(const X26Triplet &other);
-
-	X26Triplet(int, int, int);
-
-	int address() const { return m_address; }
-	int mode() const { return m_mode; }
-	int modeExt() const { return (m_address >= 40) ? m_mode : (m_mode | 0x20); }
-	int data() const { return m_data; }
-	int addressRow() const { return (m_address == 40) ? 24 :m_address-40; }
-	int addressColumn() const { return (m_address); }
-	bool isRowTriplet() const { return (m_address >= 40); }
-
-	void setAddress(int);
-	void setMode(int);
-	void setData(int);
-	void setAddressRow(int);
-	void setAddressColumn(int);
-
-private:
-	int m_address, m_mode, m_data;
-
-};
-
-#endif