72a2ef9660
When the clipboard has plain text data copied from a plain text or ASCII text editor, pasting the text will perform word wrapping. The text will originate from the cursor position and subsequent lines will by default start from column 1 to provide room for alphanumeric colour control codes in column 0. If the cursor is at column 0 then all lines will start at column 0. If a box selection is dragged before pasting the text will originate at the top left of the selection box and be confined to the box. This can be used if the second and subsequent lines need to start at a different column, or if the pasted text must not overwrite an existing feature at the right side of the page. Note that cutting or copying text from within QTeletextMaker itself will not be word wrapped on paste.
212 lines
4.8 KiB
C++
212 lines
4.8 KiB
C++
/*
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* Copyright (C) 2020-2022 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 LEVELONECOMMANDS_H
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#define LEVELONECOMMANDS_H
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#include <QByteArrayList>
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#include <QUndoCommand>
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#include "document.h"
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class LevelOneCommand : public QUndoCommand
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{
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public:
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LevelOneCommand(TeletextDocument *, QUndoCommand *parent = 0);
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protected:
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TeletextDocument *m_teletextDocument;
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int m_subPageIndex, m_row, m_column;
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bool m_firstDo;
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};
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class TypeCharacterCommand : public LevelOneCommand
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{
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public:
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enum { Id = 101 };
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TypeCharacterCommand(TeletextDocument *, unsigned char, bool, QUndoCommand *parent = 0);
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void redo() override;
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void undo() override;
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bool mergeWith(const QUndoCommand *) override;
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int id() const override { return Id; }
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private:
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unsigned char m_newCharacter, m_oldRowContents[40], m_newRowContents[40];
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int m_columnStart, m_columnEnd;
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bool m_insertMode;
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};
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class ToggleMosaicBitCommand : public LevelOneCommand
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{
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public:
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enum { Id = 102 };
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ToggleMosaicBitCommand(TeletextDocument *, unsigned char, QUndoCommand *parent = 0);
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void redo() override;
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void undo() override;
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bool mergeWith(const QUndoCommand *) override;
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int id() const override { return Id; }
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private:
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unsigned char m_oldCharacter, m_newCharacter;
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};
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class BackspaceKeyCommand : public LevelOneCommand
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{
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public:
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enum { Id = 103 };
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BackspaceKeyCommand(TeletextDocument *, bool insertMode, QUndoCommand *parent = 0);
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void redo() override;
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void undo() override;
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bool mergeWith(const QUndoCommand *) override;
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int id() const override { return Id; }
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private:
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unsigned char m_oldRowContents[40], m_newRowContents[40];
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int m_columnStart, m_columnEnd;
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bool m_insertMode;
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};
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class DeleteKeyCommand : public LevelOneCommand
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{
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public:
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enum { Id = 104 };
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DeleteKeyCommand(TeletextDocument *, QUndoCommand *parent = 0);
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void redo() override;
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void undo() override;
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bool mergeWith(const QUndoCommand *) override;
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int id() const override { return Id; }
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private:
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unsigned char m_oldRowContents[40], m_newRowContents[40];
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};
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class InsertSubPageCommand : public LevelOneCommand
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{
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public:
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InsertSubPageCommand(TeletextDocument *, bool, bool, QUndoCommand *parent = 0);
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void redo() override;
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void undo() override;
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private:
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int m_newSubPageIndex;
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bool m_copySubPage;
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};
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class DeleteSubPageCommand : public LevelOneCommand
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{
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public:
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DeleteSubPageCommand(TeletextDocument *, QUndoCommand *parent = 0);
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void redo() override;
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void undo() override;
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};
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class InsertRowCommand : public LevelOneCommand
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{
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public:
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InsertRowCommand(TeletextDocument *, bool, QUndoCommand *parent = 0);
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void redo() override;
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void undo() override;
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private:
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bool m_copyRow;
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unsigned char m_deletedBottomRow[40];
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};
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class DeleteRowCommand : public LevelOneCommand
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{
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public:
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DeleteRowCommand(TeletextDocument *, QUndoCommand *parent = 0);
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void redo() override;
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void undo() override;
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private:
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unsigned char m_deletedRow[40];
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};
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#ifndef QT_NO_CLIPBOARD
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class CutCommand : public LevelOneCommand
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{
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public:
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CutCommand(TeletextDocument *, QUndoCommand *parent = 0);
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void redo() override;
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void undo() override;
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private:
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QByteArrayList m_deletedCharacters;
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int m_selectionTopRow, m_selectionBottomRow, m_selectionLeftColumn, m_selectionRightColumn;
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int m_selectionCornerRow, m_selectionCornerColumn;
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};
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class PasteCommand : public LevelOneCommand
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{
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public:
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PasteCommand(TeletextDocument *, int, QUndoCommand *parent = 0);
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void redo() override;
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void undo() override;
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private:
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QByteArrayList m_deletedCharacters, m_pastingCharacters;
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int m_pasteTopRow, m_pasteBottomRow, m_pasteLeftColumn, m_pasteRightColumn;
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int m_clipboardDataHeight, m_clipboardDataWidth;
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int m_selectionCornerRow, m_selectionCornerColumn;
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bool m_selectionActive, m_plainText;
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};
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#endif // !QT_NO_CLIPBOARD
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class SetColourCommand : public LevelOneCommand
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{
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public:
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SetColourCommand(TeletextDocument *, int, int, QUndoCommand *parent = 0);
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void redo() override;
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void undo() override;
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private:
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int m_colourIndex, m_oldColour, m_newColour;
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};
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class ResetCLUTCommand : public LevelOneCommand
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{
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public:
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ResetCLUTCommand(TeletextDocument *, int, QUndoCommand *parent = 0);
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void redo() override;
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void undo() override;
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private:
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int m_colourTable;
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int m_oldColourEntry[8];
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};
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#endif
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