replace getTotalClipStack() with replayClips()+ClipVisitor

git-svn-id: http://skia.googlecode.com/svn/trunk@3670 2bbb7eff-a529-9590-31e7-b0007b416f81

1 files changed, 12 insertions, 5 deletions

diff --git a/include/core/SkCanvas.h b/include/core/SkCanvas.h
index a09a59261f..25cc94ab12 100644
--- a/include/core/SkCanvas.h
+++ b/include/core/SkCanvas.h
@@ -886,13 +886,20 @@ public:
      */
     const SkRegion& getTotalClip() const;
 
+    void setExternalMatrix(const SkMatrix* = NULL);
+
+    class ClipVisitor {
+    public:
+        virtual void clipRect(const SkRect&, SkRegion::Op, bool antialias) = 0;
+        virtual void clipPath(const SkPath&, SkRegion::Op, bool antialias) = 0;
+    };
+
     /**
-     *  Return the current clipstack. This mirrors the result in getTotalClip()
-     *  but is represented as a stack of geometric clips + region-ops.
+     *  Replays the clip operations, back to front, that have been applied to
+     *  the canvas, calling the appropriate method on the visitor for each
+     *  clip. All clips have already been transformed into device space.
      */
-    const SkClipStack& getTotalClipStack() const;
-
-    void setExternalMatrix(const SkMatrix* = NULL);
+    void replayClips(ClipVisitor*) const;
 
     ///////////////////////////////////////////////////////////////////////////