Overriding QWidget::event does not work!

[kinglui987]

Hey there,

i am trying to override the default behavoiur of QWidget::event.
I am trying to implement some touch features.

On my widget i made sure to set setAttribute(Qt::WA_AcceptTouchEvents);

Now from the docs, i read that Qt generates for the first non-primary touchpoint also a mouse event.
I am simply trying to avoid this.
I am using a default example of QT. You can find it in the example/touch directory shipped with QT.

Here is my Code. Note that i am not calling the default behaviour of QWidget. I accept all touchevents and return true so clarify that i have handled the touchevent.

bool ScribbleArea::event(QEvent *event)
    {
        bool handleEvent = false;
        QInputEvent* inPut = dynamic_cast<QInputEvent*>(event);
        if(inPut)
        {
        switch (inPut ->type())
        {
            case QEvent::TouchBegin:
            std::cout<<"ScribbleArea received TouchEvent BEGIN";
            inPut->accept();
            handleEvent=true;
            break;
            case QEvent::TouchUpdate:
            //std::cout<<"ScribbleArea received TouchEvent UPDATE";
            inPut->accept();
            handleEvent=true;
            break;
            case QEvent::TouchEnd:
            std::cout<<"ScribbleArea received TouchEvent END";
            inPut->accept();
            handleEvent=true;
            break;
            case QEvent::MouseButtonPress:
            std::cout<<"ScribbleArea received MouseEvent PRESS";
            break;
            case QEvent::MouseButtonRelease:
            std::cout<<"ScribbleArea received MouseEvent RELEASE";
            break;
    }    
    return handleEvent;
    }
    return true;
}

bool ScribbleArea::event(QEvent *event)
    {
        bool handleEvent = false;
        QInputEvent* inPut = dynamic_cast<QInputEvent*>(event);
        if(inPut)
        {
        switch (inPut ->type())
        {
            case QEvent::TouchBegin:
            std::cout<<"ScribbleArea received TouchEvent BEGIN";
            inPut->accept();
            handleEvent=true;
            break;
            case QEvent::TouchUpdate:
            //std::cout<<"ScribbleArea received TouchEvent UPDATE";
            inPut->accept();
            handleEvent=true;
            break;
            case QEvent::TouchEnd:
            std::cout<<"ScribbleArea received TouchEvent END";
            inPut->accept();
            handleEvent=true;
            break;
            case QEvent::MouseButtonPress:
            std::cout<<"ScribbleArea received MouseEvent PRESS";
            break;
            case QEvent::MouseButtonRelease:
            std::cout<<"ScribbleArea received MouseEvent RELEASE";
            break;
    }    
    return handleEvent;
    }
    return true;
}

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However, what i get is this, when i am simply touching the screen once.
Why is this? I dont want the mouse event to be generated by QT.

std::cout<<"ScribbleArea received TouchEvent"; 
std::cout<<"ScribbleArea received MouseEvent PRESS";
std::cout<<"ScribbleArea received TouchEvent END";
std::cout<<"ScribbleArea received MouseEvent RELEASE";

std::cout<<"ScribbleArea received TouchEvent"; 
std::cout<<"ScribbleArea received MouseEvent PRESS";
std::cout<<"ScribbleArea received TouchEvent END";
std::cout<<"ScribbleArea received MouseEvent RELEASE";

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Thanks so far.