[gimp/soc-2010-cage] app: don't draw any background if the overlay child is app-paintable

[Michael Muré <mmure src gnome org>]

commit 0a7c5168f5525056f70174fa047bddb2ec6b99e6
Author: Michael Natterer <mitch gimp org>
Date:   Fri Jun 18 13:46:39 2010 +0200

    app: don't draw any background if the overlay child is app-paintable
    
    instead of never drawing a background. Doesn't make any difference,
    but makes GimpOverlayBox a more general container. Also, the offscreen
    GdkWindow doesn't need any event but GDK_EXPOSURE_MASK.

 app/widgets/gimpoverlaychild.c |   15 +++++++--------
 1 files changed, 7 insertions(+), 8 deletions(-)
---
diff --git a/app/widgets/gimpoverlaychild.c b/app/widgets/gimpoverlaychild.c
index a344cdd..8c322f6 100644
--- a/app/widgets/gimpoverlaychild.c
+++ b/app/widgets/gimpoverlaychild.c
@@ -166,7 +166,7 @@ gimp_overlay_child_realize (GimpOverlayBox   *box,
   attributes.wclass      = GDK_INPUT_OUTPUT;
   attributes.visual      = gtk_widget_get_visual (child->widget);
   attributes.colormap    = gtk_widget_get_colormap (child->widget);
-  attributes.event_mask  = gtk_widget_get_events (child->widget) | GDK_EXPOSURE_MASK;
+  attributes.event_mask  = GDK_EXPOSURE_MASK;
   attributes.cursor      = gdk_cursor_new_for_display (display, GDK_LEFT_PTR);
 
   attributes_mask = (GDK_WA_X        |
@@ -352,13 +352,12 @@ gimp_overlay_child_expose (GimpOverlayBox   *box,
     }
   else if (event->window == child->window)
     {
-#if 0
-      gtk_paint_flat_box (gtk_widget_get_style (child->widget),
-                          event->window,
-                          GTK_STATE_NORMAL, GTK_SHADOW_NONE,
-                          &event->area, widget, NULL,
-                          0, 0, -1, -1);
-#endif
+      if (! gtk_widget_get_app_paintable (child->widget))
+        gtk_paint_flat_box (gtk_widget_get_style (child->widget),
+                            event->window,
+                            GTK_STATE_NORMAL, GTK_SHADOW_NONE,
+                            &event->area, widget, NULL,
+                            0, 0, -1, -1);
 
       gtk_container_propagate_expose (GTK_CONTAINER (widget),
                                       child->widget,