[gtk+/layered-windows: 10/10] gdk: Fix repaint of layered region during move_region

[Alexander Larsson <alexl src gnome org>]

commit a472f5cc5b276e5f416af54fe1ff605dc40920d0
Author: Alexander Larsson <alexl redhat com>
Date:   Thu Dec 1 16:45:36 2011 +0100

    gdk: Fix repaint of layered region during move_region

 gdk/gdkwindow.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/gdk/gdkwindow.c b/gdk/gdkwindow.c
index 048d2bb..d736d51 100644
--- a/gdk/gdkwindow.c
+++ b/gdk/gdkwindow.c
@@ -6453,10 +6453,12 @@ gdk_window_move_region (GdkWindow       *window,
   /* compute source regions */
   copy_area = cairo_region_copy (region);
   cairo_region_intersect (copy_area, window->clip_region_with_children);
+  cairo_region_subtract (copy_area, window->layered_region);
 
   /* compute destination regions */
   cairo_region_translate (copy_area, dx, dy);
   cairo_region_intersect (copy_area, window->clip_region_with_children);
+  cairo_region_subtract (copy_area, window->layered_region);
 
   /* Invalidate parts of the region (source and dest) not covered
      by the copy */