[gtk+] gdk: Fix gdk_cairo_region_create_from_surface() with device offsets

[Benjamin Otte <otte src gnome org>]

commit 7203b721936f9671c52fa0ac8415a5d83e210b1a
Author: Benjamin Otte <otte redhat com>
Date:   Thu Sep 30 16:24:11 2010 +0200

    gdk: Fix gdk_cairo_region_create_from_surface() with device offsets

 gdk/gdkcairo.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/gdk/gdkcairo.c b/gdk/gdkcairo.c
index 026fef5..c1670eb 100644
--- a/gdk/gdkcairo.c
+++ b/gdk/gdkcairo.c
@@ -425,7 +425,7 @@ gdk_cairo_region_create_from_surface (cairo_surface_t *surface)
       image = cairo_image_surface_create (CAIRO_FORMAT_A1,
                                           extents.width, extents.height);
       cr = cairo_create (image);
-      cairo_set_source_surface (cr, surface, extents.x, extents.y);
+      cairo_set_source_surface (cr, surface, -extents.x, -extents.y);
       cairo_paint (cr);
       cairo_destroy (cr);
     }