[gimp/gimp-2-6] Bug 631199 - Printing and Print preview broken with cairo 1.10

[Sven Neumann <neo src gnome org>]

commit c58dc682e6dbbcf2ad5eb162ae84e15f12ae74a1
Author: Sven Neumann <sven gimp org>
Date:   Sun Oct 3 14:05:20 2010 +0200

    Bug 631199 - Printing and Print preview broken with cairo 1.10
    
    Add missing calls to cairo_surface_mark_dirty().
    (cherry picked from commit 6be41a6675007a0c7328453c654bcda5a2b875b0)

 plug-ins/print/print-draw-page.c |    2 ++
 plug-ins/print/print-preview.c   |    2 ++
 2 files changed, 4 insertions(+), 0 deletions(-)
---
diff --git a/plug-ins/print/print-draw-page.c b/plug-ins/print/print-draw-page.c
index a5a41cb..5f0cbfe 100644
--- a/plug-ins/print/print-draw-page.c
+++ b/plug-ins/print/print-draw-page.c
@@ -240,6 +240,8 @@ print_cairo_surface_from_drawable (gint32 drawable_ID)
 
   gimp_drawable_detach (drawable);
 
+  cairo_surface_mark_dirty (surface);
+
   return surface;
 }
 
diff --git a/plug-ins/print/print-preview.c b/plug-ins/print/print-preview.c
index 89bde20..7158af6 100644
--- a/plug-ins/print/print-preview.c
+++ b/plug-ins/print/print-preview.c
@@ -864,5 +864,7 @@ print_preview_get_thumbnail (GimpDrawable *drawable,
 
   g_free (data);
 
+  cairo_surface_mark_dirty (surface);
+
   return surface;
 }