[vtkusers] QVTKWidget + QGraphicsview as viewport

[Clinton Stimpson]

I've seen stack overflow if a needed function is not implemented in  
QVTKPaintEngine.
You should be able to tell which one with a debugger.

Clint

On Nov 3, 2009, at 11:10 AM, Zoltán Bárdosi wrote:

> Hello all,
>
> I'd like to have a Qt+VTK integration similar to the Examples/GUI/ 
> Qt/GraphicsView.
> My problem is that if I add a simple combo-box to the embedded  
> dialog, the program crashes with stack overflow when I click on the  
> combo box.
> Other controls seems to work (button, checkbox...).
>
> You can(?) reproduce if you put
>
>   QComboBox *cb = new QComboBox();
>   cb->addItem("first");
>   cb->addItem("second");
>   d->layout()->addWidget(cb);
>
> into MyScene::MyScene().
>
>
> If I change the viewport from the QVTKWidget to a QGLWidget:
>
> //this->setViewport(mWidget);
> this->setViewport(new QGLWidget(QGLFormat(QGL::SampleBuffers)));
>
> and comment the paintEvent, drawBackground implementations, then
> the embedded widget seems to work fine with the combobox. (but  
> there is no vtk render).
>
> if I don't remove paintEvent, drawBackground, then nothing is  
> visible..
>
> Do you have any idea what is wrong, and how can I get it working?
>
> Thanks,
> Zoltan
>
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