Re: colormap assertion errors

[Rob Benton <rob benton conwaycorp net>]

B.Hakvoort wrote:
> On Mon, 2004-11-29 at 09:51 -0600, Rob Benton wrote:
>
> > Hey I've been working with the drawarea widgets lately and I've run into 
> > a strange problem.  I don't know if I've found a bug or if something is 
> > missing from my code.
> >
> > Basically what I have is a window with an eventbox which holds a 
> > drawarea widget.  When clicked it pops up a dialog with another drawarea 
> > widget.  If I open this dialog 10 times or more, when I close the main 
> > window I get lots of GDK_IS_COLORMAP assertion errors.
>
>
> Hi Rob,
>
> A while ago i experienced something similar.. It turned out i didn't
> free colors i had allocated before with alloc_color() .
>
> To free them i use free_colors()
>
> I'm not sure if this will help you, but's it's worth the try ;)
>
> Bart


I've narrowed down the error to one variable, the Gdk::Colormap.  That's 
what's failing the assertion with:

-ERRORS---------------------------------------------------------
(chip:3201): GLib-GObject-CRITICAL **: file gobject.c: line 1579 
(g_object_unref): assertion `G_IS_OBJECT (object)' failed
(chip:3201): Gdk-CRITICAL **: file gdkcolor-x11.c: line 690 
(gdk_colormap_free_colors): assertion `GDK_IS_COLORMAP (colormap)' failed
----------------------------------------------------------------

I'm declaring a Gtk::DrawingArea member variable on the stack and a 
Glib::RefPtr<Gdk::Colormap> member variable.  Then I'm using this line 
inside the class' constructor:

-CODE-----------------------------------------------------------
_colormap = _drawarea.get_default_colormap();
----------------------------------------------------------------


Is there a step I'm missing?