[vtkusers] QVtkWidgets in a QGraphicsView (QGraphicsScene)

[J.S.Wijnhout at lumc.nl]

>Nobody knows where the problem comes from ?
>Is there any other way to display QVTKWidgets in a QGraphicsView ?

I have been experimenting with QVTKWidget lately (in particular, I tried
to create an overlay widget on top of the QVTKWidget). The QVTKWidget is
rather special since it, basically takes the standard vtkRenderWindow
and embeds it inside a QWidget. For this to work properly it sets the
Qt::WA_PaintOnScreen attribute (I'm talking about Qt4 here). This
effectively makes it impossible for me to create transparent overlays.
I'm not sure but I can imagine that you are running into the same
problem.

The QVTKWidget supports redirected painting, but honestly, I have no
clue how to set that up (If it is going to solve anything at all).

best,
Jeroen

Vincent Gratsac wrote:
> Hi all,
>
> I'm trying to add some QVTKWidgets in a QGraphicsView since a few 
> days, but I don't succeed in it : displayed objects are empty. 
> Actually, I can display a QVTKWidget in a simple QWidget, but the 
> problem seems to come from the QGraphicsView which is unable to 
> display it.
>
> Has anyone ever meet this problem ? Can someone help me ?
>
> Thank you,
>
> Vincent
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