[gtk+/icon-shadow: 2/9] shadow: add _gtk_icon_shadow_paint_surface()

[Cosimo Cecchi <cosimoc src gnome org>]

commit 9313268bc85841ae81f2b3e8a75da197dccd04b9
Author: Cosimo Cecchi <cosimoc gnome org>
Date:   Fri May 20 23:51:16 2011 -0400

    shadow: add _gtk_icon_shadow_paint_surface()

 gtk/gtkshadow.c        |   23 +++++++++++++++++++++++
 gtk/gtkshadowprivate.h |    3 +++
 2 files changed, 26 insertions(+), 0 deletions(-)
---
diff --git a/gtk/gtkshadow.c b/gtk/gtkshadow.c
index f1f58c8..0e54c91 100644
--- a/gtk/gtkshadow.c
+++ b/gtk/gtkshadow.c
@@ -284,3 +284,26 @@ _gtk_text_shadow_paint_layout (GtkShadow       *shadow,
   }
 }
 
+void
+_gtk_icon_shadow_paint (GtkShadow *shadow,
+			cairo_t *cr)
+{
+  GList *l;
+  GtkShadowElement *element;
+  cairo_pattern_t *pattern;
+
+  for (l = g_list_last (shadow->elements); l != NULL; l = l->prev)
+    {
+      element = l->data;
+
+      cairo_save (cr);
+      pattern = cairo_pattern_reference (cairo_get_source (cr));
+      gdk_cairo_set_source_rgba (cr, &element->color);
+
+      cairo_translate (cr, element->hoffset, element->voffset);
+      cairo_mask (cr, pattern);
+
+      cairo_restore (cr);
+      cairo_pattern_destroy (pattern);
+    }
+}
diff --git a/gtk/gtkshadowprivate.h b/gtk/gtkshadowprivate.h
index 46ef0ff..997fd89 100644
--- a/gtk/gtkshadowprivate.h
+++ b/gtk/gtkshadowprivate.h
@@ -57,6 +57,9 @@ void       _gtk_text_shadow_paint_layout (GtkShadow       *shadow,
                                           cairo_t         *cr,
                                           PangoLayout     *layout);
 
+void       _gtk_icon_shadow_paint        (GtkShadow *shadow,
+					  cairo_t *cr);
+
 G_END_DECLS
 
 #endif /* __GTK_SHADOW_H__ */