void XmlEdit::createConnections()
{
connect(this, SIGNAL(cursorPositionChanged()),
this, SLOT(highlightCurrentLine()));
connect(completer, SIGNAL(activated(const QString&)),
this, SLOT(insertCompletion(const QString&)));
(void) new QShortcut(QKeySequence(tr("Ctrl+M", "Complete")),
this, SLOT(performCompletion()));
}
void XmlEdit::performCompletion()
{
QTextCursor cursor = textCursor();
cursor.select(QTextCursor::WordUnderCursor);
const QString completionPrefix = cursor.selectedText();
if (!completionPrefix.isEmpty() &&
completionPrefix.at(completionPrefix.length() - 1)
.isLetter())
performCompletion(completionPrefix);
}
void CodeEditor::keyPressEvent(QKeyEvent* event)
{
if (event->key() == Qt::Key_Return && event->modifiers() == Qt::SHIFT)
return;
if (event->key() == Qt::Key_E && event->modifiers() == Qt::CTRL) {
QTextBlock block = textCursor().block();
foldUnfold(block);
FULLRESIZE;
return;
}
if (event->key() == Qt::Key_Space && event->modifiers() == Qt::CTRL) {
performCompletion();
return;
}
if (event->key() == Qt::Key_Backspace && config->backUnindent) {
QTextCursor cursor = textCursor();
if (!cursor.hasSelection() && !cursor.atBlockStart() && cursor.block().text(). \
left(cursor.positionInBlock()). \
trimmed().isEmpty()) {
cursor.movePosition(QTextCursor::PreviousCharacter, QTextCursor::KeepAnchor,
qMin(config->indentSize, cursor.positionInBlock()));
cursor.removeSelectedText();
return;
}
}
if (event->key() == Qt::Key_Tab && config->tabIndents) {
QTextCursor cursor = textCursor();
if (cursor.hasSelection()) {
QTextBlock block = document()->findBlock(cursor.selectionStart());
int end = document()->findBlock(cursor.selectionEnd()).blockNumber();
if (end - block.blockNumber()) {
cursor.beginEditBlock();
do {
cursor.setPosition(block.position(), QTextCursor::MoveAnchor);
cursor.insertText(QString().fill(' ', config->indentSize));
} while ((block = block.next()).isValid() && block.blockNumber() <= end);
cursor.endEditBlock();
return;
}
} else if (textCursor().block().text(). \
left(textCursor().positionInBlock()). \
trimmed().isEmpty()) {
textCursor().insertText(QString().fill(' ', config->indentSize));
return;
}
}
if (event->key() == Qt::Key_Tab && config->spaceTabs) {
textCursor().insertText(QString().fill(' ', config->tabSize));
return;
}
if (completer->popup()->isVisible()) {
switch (event->key()) {
case Qt::Key_Up:
case Qt::Key_Down:
case Qt::Key_Enter:
case Qt::Key_Return:
case Qt::Key_Escape:
event->ignore();
return;
}
}
QPlainTextEdit::keyPressEvent(event);
if (completer->popup()->isVisible())
performCompletion();
if (event->key() == Qt::Key_Return && config->autoIndent) {
int state = textCursor().block().userState();
if (!(state & Error) && (state & Nested)) {
QString txt = textCursor().block().previous().text();
int i = 0;
while (txt[i].isSpace()) ++i;
int previousBlockState = textCursor().block().previous().userState();
if (!(previousBlockState & Error) && previousBlockState & Begin)
i += config->indentSize;
textCursor().insertText(QString().fill(' ', i));
}
}
}
