[vtkusers] QVTKWidget paint hangs

Clinton Stimpson clinton at elemtech.com
Thu Sep 25 22:58:18 EDT 2008


And also specify platform and Qt version.

The reason that is helpful is because sometimes there are regressions in 
Qt, such as Qt/Mac 4.3.0-4.3.2 has issues with not painting in the 
QVTKWidget when the GUI changes.

Clint

Arnaldo Luis Lixandrão Filho wrote:
> Please, if you can post the sourcecode and i will try to fix it for you..
>
> --
> Arnaldo Luis Lixandrão Filho
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>
> On Thu, Sep 25, 2008 at 9:59 PM, John Eke <tonee47 at yahoo.com 
> <mailto:tonee47 at yahoo.com>> wrote:
>
>     Hi,
>
>     I'm having some trouble with the QVTKWidget, hope someone can
>     please help. For some reason, paintEvents seem to hang. My
>     QVTKWidgets simply displays a png in an image actor. I have
>     several tabs in my QMainWindow, and each tab displays 2 of such
>     QVTKWidgets.
>
>     When the app loads and shows the initial tab, both QVTKWidgets on
>     THIS tab paint with no problem. But when I switch to a different
>     tab, one QVTKWidget paints, and the second one refuses to paint
>     UNTIL another random event occurs eg resizing the app, or clicking
>     anywhere on the GUI, even scrolling the mouse.
>
>     Has anyone encountered this problem? how can I fix it?
>
>     Thanks guys
>
>
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