void QLabelPrivate::ensureTextLayouted() const
{
if (!textLayoutDirty)
return;
ensureTextPopulated();
if (control) {
QTextDocument *doc = control->document();
QTextOption opt = doc->defaultTextOption();
opt.setAlignment(QFlag(this->align));
if (this->align & Qt::TextWordWrap)
opt.setWrapMode(QTextOption::WordWrap);
else
opt.setWrapMode(QTextOption::ManualWrap);
doc->setDefaultTextOption(opt);
QTextFrameFormat fmt = doc->rootFrame()->frameFormat();
fmt.setMargin(0);
doc->rootFrame()->setFrameFormat(fmt);
doc->setTextWidth(documentRect().width());
}
textLayoutDirty = false;
}
void QLabelPrivate::updateShortcut()
{
Q_Q(QLabel);
Q_ASSERT(shortcutId == 0);
// Introduce an extra boolean to indicate the presence of a shortcut in the
// text. We cannot use the shortcutId itself because on the mac mnemonics are
// off by default, so QKeySequence::mnemonic always returns an empty sequence.
// But then we do want to hide the ampersands, so we can't use shortcutId.
hasShortcut = false;
if (control) {
ensureTextPopulated();
// Underline the first character that follows an ampersand
shortcutCursor = control->document()->find(QLatin1String("&"));
if (shortcutCursor.isNull())
return;
hasShortcut = true;
shortcutId = q->grabShortcut(QKeySequence::mnemonic(text));
shortcutCursor.deleteChar(); // remove the ampersand
shortcutCursor.movePosition(QTextCursor::NextCharacter, QTextCursor::KeepAnchor);
} else {
if (!text.contains(QLatin1String("&")))
return;
hasShortcut = true;
shortcutId = q->grabShortcut(QKeySequence::mnemonic(text));
}
}