1 files changed, 56 insertions, 0 deletions
diff --git a/skia/include/SkTransparentShader.h b/skia/include/SkTransparentShader.h
new file mode 100644
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+++ b/skia/include/SkTransparentShader.h
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+/* include/graphics/SkTransparentShader.h
+**
+** Copyright 2006, Google Inc.
+**
+** Licensed under the Apache License, Version 2.0 (the "License"); 
+** you may not use this file except in compliance with the License. 
+** You may obtain a copy of the License at 
+**
+**     http://www.apache.org/licenses/LICENSE-2.0 
+**
+** Unless required by applicable law or agreed to in writing, software 
+** distributed under the License is distributed on an "AS IS" BASIS, 
+** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 
+** See the License for the specific language governing permissions and 
+** limitations under the License.
+*/
+
+#ifndef SkTransparentShader_DEFINED
+#define SkTransparentShader_DEFINED
+
+#include "SkShader.h"
+
+class SkTransparentShader : public SkShader {
+public:
+    SkTransparentShader() {}
+    virtual uint32_t getFlags();
+    virtual bool    setContext( const SkBitmap& device,
+                                const SkPaint& paint,
+                                const SkMatrix& matrix);
+    virtual void    shadeSpan(int x, int y, SkPMColor[], int count);
+    virtual void    shadeSpan16(int x, int y, uint16_t span[], int count);
+
+    // overrides for SkFlattenable
+    virtual Factory getFactory() { return Create; }
+    virtual void flatten(SkFlattenableWriteBuffer& buffer)
+    {
+        this->INHERITED::flatten(buffer);
+    }
+        
+private:
+    // these are a cache from the call to setContext()
+    const SkBitmap* fDevice;
+    uint8_t         fAlpha;
+
+    SkTransparentShader(SkFlattenableReadBuffer& buffer) : INHERITED(buffer) {}
+    
+    static SkFlattenable* Create(SkFlattenableReadBuffer& buffer)
+    {
+        return SkNEW_ARGS(SkTransparentShader, (buffer));
+    }
+
+    typedef SkShader INHERITED;
+};
+
+#endif
+