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Split out commands into their own file

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This commit is contained in:
G.K.MacGregor
2020-11-10 18:48:12 +00:00
parent 409c00f22e
commit 79fac8b972
8 changed files with 449 additions and 397 deletions
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280
document.cpp
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@@ -313,283 +313,3 @@ void TeletextDocument::cancelSelection()
{
m_selectionSubPage = nullptr;
}
OverwriteCharacterCommand::OverwriteCharacterCommand(TeletextDocument *teletextDocument, unsigned char newCharacter, 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);
m_newCharacter = newCharacter;
}
void OverwriteCharacterCommand::redo()
{
m_teletextDocument->selectSubPageIndex(m_subPageIndex);
m_teletextDocument->currentSubPage()->setCharacter(m_row, m_column, m_newCharacter);
m_teletextDocument->moveCursor(m_row, m_column);
m_teletextDocument->cursorRight();
setText(QObject::tr("overwrite char"));
emit m_teletextDocument->contentsChange(m_row);
}
void OverwriteCharacterCommand::undo()
{
m_teletextDocument->selectSubPageIndex(m_subPageIndex);
m_teletextDocument->currentSubPage()->setCharacter(m_row, m_column, m_oldCharacter);
m_teletextDocument->moveCursor(m_row, m_column);
setText(QObject::tr("overwrite char"));
emit m_teletextDocument->contentsChange(m_row);
}
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;
}
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);
setText(QObject::tr("mosaic"));
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);
setText(QObject::tr("mosaic"));
emit m_teletextDocument->contentsChange(m_row);
}
bool ToggleMosaicBitCommand::mergeWith(const QUndoCommand *command)
{
const ToggleMosaicBitCommand *previousCommand = static_cast<const ToggleMosaicBitCommand *>(command);
if (m_subPageIndex != previousCommand->m_subPageIndex || m_row != previousCommand->m_row || m_column != previousCommand->m_column)
return false;
m_newCharacter = previousCommand->m_newCharacter;
return true;
}
BackspaceCommand::BackspaceCommand(TeletextDocument *teletextDocument, QUndoCommand *parent) : QUndoCommand(parent)
{
m_teletextDocument = teletextDocument;
m_subPageIndex = teletextDocument->currentSubPageIndex();
m_row = teletextDocument->cursorRow();
m_column = teletextDocument->cursorColumn()-1;
if (m_column == -1) {
m_column = 39;
if (--m_row == 0)
m_row = 24;
}
m_deletedCharacter = teletextDocument->currentSubPage()->character(m_row, m_column);
}
void BackspaceCommand::redo()
{
m_teletextDocument->selectSubPageIndex(m_subPageIndex);
m_teletextDocument->currentSubPage()->setCharacter(m_row, m_column, 0x20);
m_teletextDocument->moveCursor(m_row, m_column);
setText(QObject::tr("backspace"));
emit m_teletextDocument->contentsChange(m_row);
}
void BackspaceCommand::undo()
{
m_teletextDocument->selectSubPageIndex(m_subPageIndex);
m_teletextDocument->currentSubPage()->setCharacter(m_row, m_column, m_deletedCharacter);
m_teletextDocument->moveCursor(m_row, m_column);
m_teletextDocument->cursorRight();
setText(QObject::tr("backspace"));
emit m_teletextDocument->contentsChange(m_row);
}
InsertRowCommand::InsertRowCommand(TeletextDocument *teletextDocument, bool copyRow, QUndoCommand *parent) : QUndoCommand(parent)
{
m_teletextDocument = teletextDocument;
m_subPageIndex = teletextDocument->currentSubPageIndex();
m_row = teletextDocument->cursorRow();
m_copyRow = copyRow;
}
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);
// Shuffle 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)
setText(QObject::tr("insert copy row"));
else {
// The above shuffle 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, ' ');
setText(QObject::tr("insert blank row"));
}
emit m_teletextDocument->refreshNeeded();
}
void InsertRowCommand::undo()
{
m_teletextDocument->selectSubPageIndex(m_subPageIndex);
m_teletextDocument->moveCursor(m_row, -1);
// Shuffle 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]);
if (m_copyRow)
setText(QObject::tr("insert copy row"));
else
setText(QObject::tr("insert blank row"));
emit m_teletextDocument->refreshNeeded();
}
DeleteRowCommand::DeleteRowCommand(TeletextDocument *teletextDocument, QUndoCommand *parent) : QUndoCommand(parent)
{
m_teletextDocument = teletextDocument;
m_subPageIndex = teletextDocument->currentSubPageIndex();
m_row = teletextDocument->cursorRow();
}
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);
// Shuffle 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, ' ');
setText(QObject::tr("delete row"));
emit m_teletextDocument->refreshNeeded();
}
void DeleteRowCommand::undo()
{
m_teletextDocument->selectSubPageIndex(m_subPageIndex);
m_teletextDocument->moveCursor(m_row, -1);
// Shuffle 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]);
setText(QObject::tr("delete row"));
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;
}
void InsertSubPageCommand::redo()
{
m_teletextDocument->insertSubPage(m_newSubPageIndex, m_copySubPage);
m_teletextDocument->selectSubPageIndex(m_newSubPageIndex, true);
setText(QObject::tr("insert subpage"));
}
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(m_newSubPageIndex, true);
setText(QObject::tr("insert subpage"));
}
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;
}
void SetColourCommand::redo()
{
m_teletextDocument->selectSubPageIndex(m_subPageIndex);
m_teletextDocument->currentSubPage()->setCLUT(m_colourIndex, m_newColour);
emit m_teletextDocument->colourChanged(m_colourIndex);
setText(QObject::tr("colour change"));
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);
setText(QObject::tr("colour change"));
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);
}
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);
}
setText(QObject::tr("CLUT %1 reset").arg(m_colourTable));
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);
}
setText(QObject::tr("CLUT %1 reset").arg(m_colourTable));
emit m_teletextDocument->refreshNeeded();
}