Catch Qt::BackButton mouse events no matter which Widget is under the mouse cursor
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It seems that my
@
void MainWindow::mousePressEvent(QMouseEvent* event)
@
is only called when the mouse is not over controls that might also check for mousebuttons like an edit field. However, I want to globally catch the forward and backward mouse buttons to allow history navigation. Overriding mousePressEvent in QMainWindow does not seem to be the right way to do that then? -
you can install an eventfilter on your qApp instance.
@
qApp->installEventFilter(...);
@Or you could subclass QApplication and reimplement notify() and listen for the event with the Qt::BackButton. You could also define a signal then.
@
virtual bool notify( QObject * receiver, QEvent * event )
{
if( event->type() == QEvent::MouseButtonPress )
{
QMouseEvent* me = static_cast<QMouseEvent*>(event);
switch( me->button() )
{
case Qt::BackButton:
emit navigateBackTriggered();
break;
case Qt::ForwardButton:
emit navigateForwardTriggered();
break;
}
return QApplication::notify(receiver, event);
}
@I would prefer to use the notify() method since it's ensured you really get all events (also the ones delivered to disabled widgets).
