4387e9ffbd
The cursor always forms one corner of the selection area. The area can also be selected with the keyboard using Shift and the arrow keys.
108 lines
4.1 KiB
C++
108 lines
4.1 KiB
C++
/*
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* Copyright (C) 2020, 2021 Gavin MacGregor
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*
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* This file is part of QTeletextMaker.
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*
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* QTeletextMaker is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* QTeletextMaker is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with QTeletextMaker. If not, see <https://www.gnu.org/licenses/>.
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*/
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#ifndef DOCUMENT_H
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#define DOCUMENT_H
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#include <QObject>
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#include <QUndoStack>
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#include <vector>
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#include "levelonepage.h"
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class TeletextDocument : public QObject
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{
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Q_OBJECT
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public:
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// Available Page Functions according to 9.4.2.1 of the spec
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enum PageFunctionEnum { PFLevelOnePage, PFDataBroadcasting, PFGlobalPOP, PFNormalPOP, PFGlobalDRCS, PFNormalDRCS, PFMOT, PFMIP, PFBasicTOPTable, PFAdditionalInformationTable, PFMultiPageTable, PFMultiPageExtensionTable, PFTriggerMessages };
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// Available Page Codings of X/1 to X/25 according to 9.4.2.1 of the spec
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enum PacketCodingEnum { Coding7bit, Coding8bit, Coding18bit, Coding4bit, Coding4bitThen7bit, CodingPerPacket };
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TeletextDocument();
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~TeletextDocument();
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bool isEmpty() const;
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PageFunctionEnum pageFunction() const { return m_pageFunction; }
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// void setPageFunction(PageFunctionEnum);
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PacketCodingEnum packetCoding() const { return m_packetCoding; }
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// void setPacketCoding(PacketCodingEnum);
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int numberOfSubPages() const { return m_subPages.size(); }
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LevelOnePage* subPage(int p) const { return m_subPages[p]; }
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LevelOnePage* currentSubPage() const { return m_subPages[m_currentSubPageIndex]; }
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int currentSubPageIndex() const { return m_currentSubPageIndex; }
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void selectSubPageIndex(int, bool=false);
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void selectSubPageNext();
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void selectSubPagePrevious();
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void insertSubPage(int, bool);
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void deleteSubPage(int);
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void deleteSubPageToRecycle(int);
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void unDeleteSubPageFromRecycle(int);
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int pageNumber() const { return m_pageNumber; }
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void setPageNumber(QString);
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QString description() const { return m_description; }
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void setDescription(QString);
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void setFastTextLinkPageNumberOnAllSubPages(int, int);
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QUndoStack *undoStack() const { return m_undoStack; }
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int cursorRow() const { return m_cursorRow; }
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int cursorColumn() const { return m_cursorColumn; }
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void cursorUp(bool shiftKey=false);
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void cursorDown(bool shiftKey=false);
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void cursorLeft(bool shiftKey=false);
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void cursorRight(bool shiftKey=false);
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void moveCursor(int, int, bool selectionInProgress=false);
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int selectionTopRow() const { return qMin(m_selectionCornerRow, m_cursorRow); }
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int selectionBottomRow() const { return qMax(m_selectionCornerRow, m_cursorRow); }
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int selectionLeftColumn() const { return qMin(m_selectionCornerColumn, m_cursorColumn); }
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int selectionRightColumn() const { return qMax(m_selectionCornerColumn, m_cursorColumn); }
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int selectionWidth() const { return selectionRightColumn() - selectionLeftColumn() + 1; }
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int selectionHeight() const { return selectionBottomRow() - selectionTopRow() + 1; }
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bool selectionActive() const { return m_selectionSubPage == currentSubPage(); }
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void setSelectionCorner(int, int);
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void setSelection(int, int, int, int);
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void cancelSelection();
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int levelRequired() const;
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signals:
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void cursorMoved();
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void selectionMoved();
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void colourChanged(int);
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void contentsChange(int);
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void aboutToChangeSubPage();
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void subPageSelected();
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void refreshNeeded();
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void tripletCommandHighlight(int);
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private:
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QString m_description;
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int m_pageNumber, m_currentSubPageIndex;
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PageFunctionEnum m_pageFunction;
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PacketCodingEnum m_packetCoding;
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std::vector<LevelOnePage *> m_subPages;
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std::vector<LevelOnePage *> m_recycleSubPages;
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QUndoStack *m_undoStack;
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int m_cursorRow, m_cursorColumn, m_selectionCornerRow, m_selectionCornerColumn;
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LevelOnePage *m_selectionSubPage;
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};
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#endif
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