Просто создайте свой собственный EventFilter.
// TabBarEventHandler
class TabBarEventHandler : public QObject
{
public:
explicit TabBarEventHandler( QTabWidget * tabWidget );
virtual ~TabBarEventHandler();
void Initialize();
protected:
QTabWidget * mTabWidget;
virtual bool eventFilter( QObject* obj, QEvent* event ) override;
};
// TabBarEventHandler
TabBarEventHandler::TabBarEventHandler( TabBar * tabWidget )
: mTabWidget( tabWidget )
{
}
TabBarEventHandler::~TabBarEventHandler()
{
mTabWidget->tabBar()->removeEventFilter( this );
}
void TabBarEventHandler::Initialize()
{
mTabWidget->tabBar()->installEventFilter( this );
}
bool TabBarEventHandler::eventFilter(QObject* obj, QEvent* event)
{
qDebug() << event->type();
return QObject::eventFilter( obj, event );
}
void TabBarEventHandler::timerEvent(QTimerEvent* event)
{
}
А в вашем виджете:
MyTabWidget::MyTabWidget( QWidget * parent ) : QTabWidget( parent )
{
mEventHandler = new TabBarEventHandler( this );
mEventHandler->Initialize();
}
MyTabWidget::~MyTabWidget()
{
delete mEventHandler;
}
Вывод отладки:
QEvent :: Type (HoverMove) QEvent :: Type (HoverMove)
QEvent :: Type (MouseButtonPress) QEvent :: Type (InputMethodQuery)
QEvent :: Type (InputMethodQuery) QEvent :: Type (InputMethodQuery)
QEvent :: Type (Paint) QEvent :: Type (Paint)
QEvent :: Type (MouseButtonRelease) QEvent :: Type (HoverMove)
QEvent :: Type (HoverMove) QEvent :: Type (Leave)