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implement backspace for auto parentheses mode

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This commit is contained in:
mae
2009-09-16 15:39:51 +02:00
parent 9832cff1bb
commit a575cb18be
1 changed files with 25 additions and 3 deletions
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28
src/plugins/texteditor/basetexteditor.cpp
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@@ -989,8 +989,7 @@ void BaseTextEditor::keyPressEvent(QKeyEvent *e)
} break;
case Qt::Key_Backspace:
if (ro) break;
if (d->m_document->tabSettings().m_smartBackspace
&& (e->modifiers() & (Qt::ControlModifier
if ((e->modifiers() & (Qt::ControlModifier
| Qt::ShiftModifier
| Qt::AltModifier
| Qt::MetaModifier)) == Qt::NoModifier
@@ -3261,11 +3260,34 @@ void BaseTextEditor::handleHomeKey(bool anchor)
void BaseTextEditor::handleBackspaceKey()
{
QTextCursor cursor = textCursor();
int pos = cursor.position();
QTC_ASSERT(!cursor.hasSelection(), return);
const TextEditor::TabSettings &tabSettings = d->m_document->tabSettings();
if (tabSettings.m_autoParentheses) {
QChar lookAhead = characterAt(pos);
QChar lookBehind = characterAt(pos-1);
QChar lookFurtherBehind = characterAt(pos-2);
if ((lookBehind == QLatin1Char('(') && lookAhead == QLatin1Char(')'))
|| (lookBehind == QLatin1Char('[') && lookAhead == QLatin1Char(']'))
|| (lookBehind == QLatin1Char('"') && lookAhead == QLatin1Char('"')
&& lookFurtherBehind!= QLatin1Char('\\'))) {
cursor.beginEditBlock();
cursor.deleteChar();
cursor.deletePreviousChar();
cursor.endEditBlock();
return;
}
}
if (!tabSettings.m_smartBackspace) {
cursor.deletePreviousChar();
return;
}
QTextBlock currentBlock = cursor.block();
int positionInBlock = cursor.position() - currentBlock.position();
int positionInBlock = pos - currentBlock.position();
const QString blockText = currentBlock.text();
if (cursor.atBlockStart() || tabSettings.firstNonSpace(blockText) < positionInBlock) {
cursor.deletePreviousChar();