[Qt-interest] Embedding QGraphicsView in a QGraphicsScene - no mousePressEvent

[Ollie]

When embedding a QGraphicsView into a QGraphicsScene, the QGraphicsView does
not receive any mousePressEvents from the _right_ mouse button.
mouseMoveEvents and mouseReleaseEvents are received correctly from all mouse
buttons. This behaviour is observed when the windowFlag is set to something
different than Qt:Widget, for instance when set to Qt:Dialog.

Bellow you can find a minimal example, illustrating the problem.
I'm running Windows XP 64 bit together with Qt 4.5.3

Any help is greatly received!
Ollie


class View:
    public QGraphicsView
{
public:
       View()
       {
           setWindowFlags(Qt::Dialog);
       }
       ~View(){}

protected:

    void mouseMoveEvent(QMouseEvent *me)
    {
        if (me->buttons() == Qt::LeftButton){
            cout << "View::mouseMoveEvent -> LeftButton" << endl;
        }else if (me->buttons() == Qt::RightButton){
            cout << "View::mouseMoveEvent -> RightButton" << endl;

        }
    }
    void mousePressEvent(QMouseEvent *me)
    {
        if (me->buttons() == Qt::LeftButton){
            cout << "View::mousePressEvent -> LeftButton" << endl;
        }else if (me->buttons() == Qt::RightButton){
            cout << "View::mousePressEvent -> RightButton" <<
endl;
        }
    }

    void mouseReleaseEvent(QMouseEvent *me )
    {
        if (me->button() == Qt::LeftButton){
            cout << "View::mouseReleaseEvent -> LeftButton" << endl;
        }else if (me->button() == Qt::RightButton){
            cout << "View::mouseReleaseEvent -> RightButton" <<
endl;
        }
    }

};

int main(int argc, char *argv[])
{
    QApplication app(argc, argv);

    QGraphicsView view1;
    View view2;

    view1.setScene(new QGraphicsScene());
    view2.setScene(new QGraphicsScene());

    view1.scene()->addWidget(&view2);

    view1.resize(640, 480);
    view1.show();

    return app.exec();
}
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