bool ItemWidget::filterMouseEvents(QTextEdit *edit, QEvent *event)
{
QEvent::Type type = event->type();
switch (type) {
case QEvent::MouseButtonPress:
case QEvent::MouseButtonDblClick: {
QMouseEvent *e = static_cast<QMouseEvent*>(event);
if ( !canMouseInteract(*e) )
e->ignore();
else if (e->button() == Qt::LeftButton)
edit->setTextCursor( edit->cursorForPosition(e->pos()) );
break;
}
case QEvent::MouseMove: {
QMouseEvent *e = static_cast<QMouseEvent*>(event);
if ( !canMouseInteract(*e) )
e->ignore();
break;
}
case QEvent::MouseButtonRelease: {
QMouseEvent *e = static_cast<QMouseEvent*>(event);
if ( canMouseInteract(*e) && edit->textCursor().hasSelection() )
edit->copy();
e->ignore();
break;
}
default:
return false;
}
Qt::TextInteractionFlags flags = edit->textInteractionFlags();
if (event->isAccepted())
flags |= Qt::TextSelectableByMouse;
else
flags &= ~Qt::TextSelectableByMouse;
edit->setTextInteractionFlags(flags);
return false;
}
bool ItemWidget::filterMouseEvents(QTextEdit *edit, QEvent *event)
{
const auto type = event->type();
bool allowMouseInteraction = true;
switch (type) {
case QEvent::Enter:
edit->setMouseTracking(true);
edit->viewport()->setCursor( QCursor() );
return false;
case QEvent::MouseButtonPress:
case QEvent::MouseButtonDblClick: {
QMouseEvent *e = static_cast<QMouseEvent*>(event);
if ( !canMouseInteract(*e) )
allowMouseInteraction = false;
else if (e->button() == Qt::LeftButton)
edit->setTextCursor( edit->cursorForPosition(e->pos()) );
break;
}
case QEvent::MouseMove: {
QMouseEvent *e = static_cast<QMouseEvent*>(event);
if ( !canMouseInteract(*e) )
allowMouseInteraction = false;
break;
}
case QEvent::MouseButtonRelease: {
QMouseEvent *e = static_cast<QMouseEvent*>(event);
if ( canMouseInteract(*e) && edit->textCursor().hasSelection() )
edit->copy();
allowMouseInteraction = false;
break;
}
default:
return false;
}
Qt::TextInteractionFlags flags = edit->textInteractionFlags();
if (allowMouseInteraction) {
flags |= Qt::TextSelectableByMouse;
flags |= Qt::LinksAccessibleByMouse;
} else {
flags &= ~Qt::TextSelectableByMouse;
flags &= ~Qt::LinksAccessibleByMouse;
}
edit->setTextInteractionFlags(flags);
if (type == QEvent::MouseButtonPress || type == QEvent::MouseMove) {
const auto e = static_cast<QMouseEvent*>(event);
if (allowMouseInteraction) {
const auto anchor = edit->anchorAt(e->pos());
if ( anchor.isEmpty() ) {
edit->viewport()->setCursor( QCursor(Qt::IBeamCursor) );
} else {
edit->viewport()->setCursor( QCursor(Qt::PointingHandCursor) );
if (type == QEvent::MouseButtonPress) {
QDesktopServices::openUrl( QUrl(anchor) );
e->accept();
return true;
}
}
} else {
edit->viewport()->setCursor( QCursor() );
}
}
return false;
}