# HG changeset patch
# User Thinker K.F. Li <thinker@branda.to>
# Date 1277910942 -28800
# Node ID d416e1fff71ad4e7aa4ab21c6ac51fa338ce459f
# Parent  ac942664fe86c6abaaa1cb91bc60577b3246b784
Fix bug of mbe_copy_source() of cairo.

Must install pattern as source on target canvas instead of source
canvas.

diff -r ac942664fe86 -r d416e1fff71a include/mb_graph_engine_cairo.h
--- a/include/mb_graph_engine_cairo.h	Wed Jun 30 22:57:23 2010 +0800
+++ b/include/mb_graph_engine_cairo.h	Wed Jun 30 23:15:42 2010 +0800
@@ -113,7 +113,7 @@
     
     surf = cairo_get_target(src);
     ptn = cairo_pattern_create_for_surface(surf);
-    cairo_set_source(src, ptn);
+    cairo_set_source(dst, ptn);
     cairo_pattern_destroy(ptn);
     saved_op = cairo_get_operator(dst);
     cairo_set_operator(dst, CAIRO_OPERATOR_SOURCE);
diff -r ac942664fe86 -r d416e1fff71a src/X_supp.c
--- a/src/X_supp.c	Wed Jun 30 22:57:23 2010 +0800
+++ b/src/X_supp.c	Wed Jun 30 23:15:42 2010 +0800
@@ -484,6 +484,10 @@
     xmb_rt->cr = mbe_create(xmb_rt->surface);
     xmb_rt->backend_cr = mbe_create(xmb_rt->backend_surface);
 
+    /* TODO: Remove this line.  Since we use mbe_copy_source(), it
+     * will set source for the backend.  So, this line is redundants.
+     * It can be removed.  sourface_ptn can be removed, too.
+     */
     mbe_set_source(xmb_rt->backend_cr, xmb_rt->surface_ptn);
 
     xmb_rt->rdman = (redraw_man_t *)malloc(sizeof(redraw_man_t));