Gestures and QGraphicsScene

[estel]

Hello,
I want to use gesture framework, but at the begining I have some problems.
I have QGraphicsView and QGraphicsScene
view->addScene(myScene);
At the myScene threre are few icons(QPixmapItem) . I try recognize QSwipeGesture( click somewhere on gaphicsScene and drag) and after recognizon start some animation (QtKinetic)
I have done:

view->grabGesture(Qt::SwipeGesture);

view->grabGesture(Qt::SwipeGesture);

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I had hoepe that event would propagate to QGraphicsScene and i have done in myScene

virtual bool myScene::event(QEvent *event)
	{
     if (event->type() == QEvent::Gesture)
        do something
     return QGraphicsScene::event(event);
	}

virtual bool myScene::event(QEvent *event)
	{
     if (event->type() == QEvent::Gesture)
        do something
     return QGraphicsScene::event(event);
	}

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unfortunaltely program does not go to line "do something".
What I do wrong??