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Tweaks to mosaic character editing

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This commit is contained in:
G.K.MacGregor
2024-07-07 19:41:39 +01:00
parent fbdde54fe4
commit c32876600b
4 changed files with 24 additions and 12 deletions
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9
levelonecommands.cpp
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@@ -149,12 +149,19 @@ bool TypeCharacterCommand::mergeWith(const QUndoCommand *command)
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
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"));