[gtk+/gtk-2-22] quartz: Reset drawable on pattern callback info when gc is updated

[Kristian Rietveld <kristian src gnome org>]

commit 1e1bb1d98182964ace0039eb4af8885cd1b0bfe9
Author: Kristian Rietveld <kris gtk org>
Date:   Thu Oct 21 21:15:09 2010 +0200

    quartz: Reset drawable on pattern callback info when gc is updated

 gdk/quartz/gdkgc-quartz.c      |   12 +++++++++++-
 gdk/quartz/gdkprivate-quartz.h |    1 +
 2 files changed, 12 insertions(+), 1 deletions(-)
---
diff --git a/gdk/quartz/gdkgc-quartz.c b/gdk/quartz/gdkgc-quartz.c
index c43db8e..8b60a02 100644
--- a/gdk/quartz/gdkgc-quartz.c
+++ b/gdk/quartz/gdkgc-quartz.c
@@ -613,16 +613,19 @@ _gdk_quartz_gc_update_cg_context (GdkGC                      *gc,
 	}
       else
 	{
+          struct PatternCallbackInfo *info;
+
 	  if (!private->ts_pattern)
 	    {
 	      gfloat     width, height;
 	      gboolean   is_colored = FALSE;
 	      CGPatternCallbacks callbacks =  { 0, NULL, NULL };
-              struct PatternCallbackInfo *info;
 	      CGPoint    phase;
               GdkPixmapImplQuartz *pix_impl = NULL;
 
               info = g_new (struct PatternCallbackInfo, 1);
+              private->ts_pattern_info = info;
+
               /* Won't ref to avoid circular dependencies */
               info->drawable = drawable;
               info->private_gc = private;
@@ -667,6 +670,13 @@ _gdk_quartz_gc_update_cg_context (GdkGC                      *gc,
 						     is_colored,
 						     &callbacks);
 	    }
+          else
+            info = (struct PatternCallbackInfo *)private->ts_pattern_info;
+
+          /* Update drawable in the pattern callback info.  Again, we
+           * won't ref to avoid circular dependencies.
+           */
+          info->drawable = drawable;
 
 	  baseSpace = (fill == GDK_STIPPLED) ? CGColorSpaceCreateWithName (kCGColorSpaceGenericRGB) : NULL;
 	  patternSpace = CGColorSpaceCreatePattern (baseSpace);
diff --git a/gdk/quartz/gdkprivate-quartz.h b/gdk/quartz/gdkprivate-quartz.h
index 56379a9..1a2526e 100644
--- a/gdk/quartz/gdkprivate-quartz.h
+++ b/gdk/quartz/gdkprivate-quartz.h
@@ -72,6 +72,7 @@ struct _GdkGCQuartz
   CGFloat           dash_phase;
 
   CGPatternRef      ts_pattern;
+  void             *ts_pattern_info;
 
   guint             is_window : 1;
 };