[vtkusers] QVTKwidget block QT widgets

[Clinton Stimpson]

On 11/16/2010 05:56 AM, Pelt, R.F.P. van wrote:
>
> Dear all,i
>
> For a while I have been using the QVTKwidget as main render frame in 
> my applications.
>
> One drawback of the QVTKwidget is the blocking behavior during 
> interaction with the renderwindow.
>

QVTKWidget doesn't do blocking.  It behaves like any other QWidget when 
dealing with timers, event loops, and painting.

> For example:
>
> Currently I have an animation, based on the active position on a 
> slider widget.
>
> If I 'play' the animation, the slider and the rendering gets updated 
> by a timer.
>
> However, during interaction with the VTK renderwindow/camera, the QT 
> behavior is blocked as well as the animation.
>
> Does anyone know how to overcome this issue? Is it possible to animate 
> and interact simultaneously?
>

It should be possible.  What happens if you increase the interval on the 
timer?
I'm wondering if you're doing something like using a zero interval 
repeating timer and Qt is not giving any cycles to anything else.

Clint

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