[gimp/soc-2011-seamless-clone2] app: fix off-by-one over-invalidation in GimpTileHandlerProjection

[Clayton Walker <claytonw src gnome org>]

commit 3bb59356639f652d32b510b5e957ad6ef6d39578
Author: Michael Natterer <mitch gimp org>
Date:   Sat Dec 15 19:25:42 2012 +0100

    app: fix off-by-one over-invalidation in GimpTileHandlerProjection
    
    It sometimes invalidated entire rows/columns of tiles too much.

 app/gegl/gimptilehandlerprojection.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/app/gegl/gimptilehandlerprojection.c b/app/gegl/gimptilehandlerprojection.c
index c2a4808..1566a39 100644
--- a/app/gegl/gimptilehandlerprojection.c
+++ b/app/gegl/gimptilehandlerprojection.c
@@ -311,8 +311,8 @@ gimp_tile_handler_projection_invalidate (GimpTileHandlerProjection *projection,
 
   tile_x1 = x / projection->tile_width;
   tile_y1 = y / projection->tile_height;
-  tile_x2 = (x + width)  / projection->tile_width;
-  tile_y2 = (y + height) / projection->tile_height;
+  tile_x2 = (x + width  - 1) / projection->tile_width;
+  tile_y2 = (y + height - 1) / projection->tile_height;
 
   for (tile_y = tile_y1; tile_y <= tile_y2; tile_y++)
     {