Re: Gtk::GladeXML Bug?

[Paolo Molaro <lupus ximian com>]

On 02/14/01 Gregory S Hayes wrote:
> I am using Gtk::GladeXML to manipulate a glade file I have generated for
> my program. In this glade file I have an about box that is displayed via
> a menu selection. When this selection happens the first time the dialog
> is displayed correctly. However, if closed and reselected from the menu
> the dialog appears in a tiny unresizeable window. So tiny in fact that
> none of the wm decorations, much less the ok button, are visible. The
> follow is printed to STDOUT:
>
> Gtk-CRITICAL **: file gtkstyle.c: line 522 (gtk_style_attach): assertion
> `style != NULL' failed.
>
> Gtk-CRITICAL **: file gtkstyle.c: line 1128 (gtk_style_set_background):
> assertion `style != NULL' failed.
>
> Gtk-CRITICAL **: file gtkstyle.c: line 3532 (gtk_paint_flat_box):
> assertion `style != NULL' failed.
>
> Gtk-CRITICAL **: file gtkcontainer.c: line 739
> (gtk_container_dequeue_resize_handler): assertion
> `GTK_CONTAINER_RESIZE_PENDING (container)' failed.

Ok, there is a bug in your code and a (mis)feature of Gnome::About
(that derives from Gnome::Dialog). First the bug:
a signal handler for "delete_event" should return TRUE (1) if
you don't want the related window to be destroyed, so make sure
you return 1 from your gtk_widget_hide callback.
When the ok button in Gnome::About is clicked, the dialog
is destroyed, so next time you try to show() it you get warnings.
A workaround is to call the Gnome::Dialog method that makes the
dialog hide instead of destroying it:

        $about = $g->get_widget('about1');
        $about->close_hides;

lupus

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