Re: [wxVTK] GTK2 issue

[Mathieu M. <mat...@gm...>]

On 2/3/07, Wesley Brooks <wes...@gm...> wrote:
> Dear Users,
>
> Is this the same problem I'm having? I guess I'm running the latest
> version of GTK as I keep the machine updated frequently using the
> package updater on KDE. I've just found this forum after posting the
> messgage bellow on the vtk users forum:
>
> Dear Users,
>
> I'm trying to use wxVTKRenderWindow but not having much luck;
>
> >>>python wxVTKRenderWindow.py
>
> (python:5168): Gtk-CRITICAL **: gtk_widget_set_colormap: assertion
> `!GTK_WIDGET_REALIZED (widget)' failed

Have you seen this bug for wxWidgets lib:

https://sourceforge.net/tracker/?func=detail&atid=109863&aid=1597527&group_id=9863

...
Hello.

When use wxGlCanvas with wxGTK build, I have a gtk assertion :
Gtk-CRITICAL **: gtk_widget_set_colormap: assertion
`!GTK_WIDGET_REALIZED (widget)' failed

The alone use of gtk_widget_set_colormap function (for wxGTK2 build)
is src/gtk/glcanvas.cpp:339.
In gtk documentation [1], it is specified that this function must be
called before the widget is realized however in the wxGLCanvas::Create
function, it calls wxWindow::Create (l325) which
(src/gtk/window.cpp:2394) shows it.

When I suppress gtk_widget_set_colormap call, assertion is not shoewd
anymore and nothing is affected.
...

Unfortunately nobody answered it. The real issue here is that API of
wxGLCanvas really changed so I am not sure the bug really affect
2.8.0, thus I do not believe wx-deve team will be interested in
solving it. My main goal here is really to try to move toward a common
implementation for msw and gtk (by using wxWindow in both case instead
of wxGLCanvas)....Hopefully solving all those weird issues.

HTH
-M