1 files changed, 52 insertions, 0 deletions
diff --git a/skia/include/SkBlurDrawLooper.h b/skia/include/SkBlurDrawLooper.h
new file mode 100644
index 0000000..b1c3d20
--- /dev/null
+++ b/skia/include/SkBlurDrawLooper.h
@@ -0,0 +1,52 @@
+#ifndef SkBlurDrawLooper_DEFINED
+#define SkBlurDrawLooper_DEFINED
+
+#include "SkDrawLooper.h"
+#include "SkColor.h"
+
+class SkMaskFilter;
+
+/** \class SkBlurDrawLooper
+    This class draws a shadow of the object (possibly offset), and then draws
+    the original object in its original position.
+    <reed> should there be an option to just draw the shadow/blur layer? webkit?
+*/
+class SkBlurDrawLooper : public SkDrawLooper {
+public:
+    SkBlurDrawLooper(SkScalar radius, SkScalar dx, SkScalar dy, SkColor color);
+    virtual ~SkBlurDrawLooper();
+
+    // overrides from SkDrawLooper
+    virtual void init(SkCanvas*, SkPaint*);
+    virtual bool next();
+    virtual void restore();
+
+protected:
+    SkBlurDrawLooper(SkFlattenableReadBuffer&);
+    // overrides from SkFlattenable
+    virtual void flatten(SkFlattenableWriteBuffer& );
+    virtual Factory getFactory() { return CreateProc; }
+
+private:
+    static SkFlattenable* CreateProc(SkFlattenableReadBuffer& buffer) {
+        return SkNEW_ARGS(SkBlurDrawLooper, (buffer)); }
+
+    SkCanvas*       fCanvas;
+    SkPaint*        fPaint;
+    SkMaskFilter*   fBlur;
+    SkScalar        fDx, fDy;
+    SkColor         fBlurColor;
+    SkColor         fSavedColor;    // remember the original
+    int             fSaveCount;
+
+    enum State {
+        kBeforeEdge,
+        kAfterEdge,
+        kDone
+    };
+    State   fState;
+    
+    typedef SkDrawLooper INHERITED;
+};
+
+#endif