Re: custom widget->realize fct for GtkFileSelection

[John Cupitt <john cupitt ng-london org uk>]

Erwann Chenede wrote:
> Here is my realize function :
> 
> static void
> gtk_file_selection_realize (GtkWidget *widget)
> {
>   GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
>   widget->window = gtk_widget_get_parent_window (widget);
>   gdk_window_ref (widget->window);
>   g_print ("In gtk_file_selection_realize\n");
> }
> 
> I get an error from gtk_widget_get_parent_window which tells
> me the widget doesn't have a parent window.

Hi Erwann, GtkFilesel is subclassed off GtkWindow ... so the easiest way to do
this is to override _realize() (rather than using signals, as I guess you're
doing).

In your _class_init() function, do:

	widget_class->realize = my_fileselection_widget_realize;

Where my_fileselection_widget_realize() looks like this:

static void
my_fileselection_widget_realize( GtkWidget *widget )
{
	/* Do any before-we're-realized init.
	 */

	/* Realize our superclasses.
	 */
        if( GTK_WIDGET_CLASS( parent_class )->realize )
                (*GTK_WIDGET_CLASS( parent_class )->realize)( widget );

	/* Now do any after-we're-realized init.
	 */
}

John