[ruby-gnome2-devel-en] Re: No set_window function for Gtk::Widget

[Daniel C. <dan...@gm...>]

Daniel Chokola wrote:
> While trying to write a custom widget for my application I noticed that
> there is no way to set the Gdk::Window used in a Gtk::Widget. This
> results in all sorts of assertions and Gtk::Widget#window obviously
> returns nil.
> 
> Relevant code:
> signal_connect_after('realize') do
> 	@window = Gdk::Window.new(parent_window,
> 		Gdk::WindowAttr.new(@w, @h, Gdk::Window::Class::OUTPUT,
> 		Gdk::Window::Type::CHILD), 0)
> 	puts @window
> 	set_flags(Gtk::Widget::REALIZED)
> end
> 
> Output:
> #<Gdk::Window:0xb72cadfc>
> test.rb: line 4
>    Gdk-CRITICAL **:gdk_window_show: assertion `GDK_IS_WINDOW (window)'
> failed
> test.rb: line 4
>    Gdk-CRITICAL **:gdk_window_hide: assertion `GDK_IS_WINDOW (window)'
> failed
> test.rb: line 4
>    Gdk-CRITICAL **:gdk_window_set_user_data: assertion `window != NULL'
> failed
> test.rb: line 4
>    Gdk-CRITICAL **:_gdk_window_destroy_hierarchy: assertion `window !=
> NULL' failed
> test.rb: line 4
>    GLib-GObject-CRITICAL **:g_object_unref: assertion `G_IS_OBJECT
> (object)' failed
> 
> -Dan Chokola
> 
I've made a patch:

--- a/gtk/src/rbgtkwidget.c	2006-01-26 17:52:22.000000000 -0500
+++ b/gtk/src/rbgtkwidget.c	2006-01-26 17:49:54.000000000 -0500
@@ -1039,6 +1039,14 @@
     return window ? GOBJ2RVAL(window) : Qnil;
 }

+static VALUE
+widget_set_window(self, window)
+    VALUE self;
+{
+    _SELF(self)->window = RVAL2GOBJ(window);
+    return window ? window : Qnil;
+}
+
 #define DEFINE_IS_WIDGET(STATE) \
 static VALUE \
 widget_ ## STATE (self) \
@@ -1234,6 +1242,7 @@
     rb_define_method(gWidget, "remove_mnemonic_label",
widget_remove_mnemonic_label, 1);
 #endif
     rb_define_method(gWidget, "window", widget_window, 0);
+    rb_define_method(gWidget, "set_window", widget_set_window, 1);
     rb_define_method(gWidget, "allocation", widget_get_allocation, 0);
     rb_define_method(gWidget, "set_allocation", widget_set_allocation, 4);
     rb_define_method(gWidget, "requisition", widget_get_requisition, 0);