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 /*

  * Copyright 2006 The Android Open Source Project

  *

  * Use of this source code is governed by a BSD-style license that can be

  * found in the LICENSE file.

  */

 #ifndef SkTransparentShader_DEFINED

 #define SkTransparentShader_DEFINED

 #include "SkShader.h"

 class SK_API SkTransparentShader : public SkShader {

 public:

     SkTransparentShader() {}

     virtual uint32_t getFlags() SK_OVERRIDE;

     virtual bool    setContext(const SkBitmap& device,

                                const SkPaint& paint,

                                const SkMatrix& matrix) SK_OVERRIDE;

     virtual void    shadeSpan(int x, int y, SkPMColor[], int count) SK_OVERRIDE;

     virtual void    shadeSpan16(int x, int y, uint16_t span[], int count) SK_OVERRIDE;

     SK_TO_STRING_OVERRIDE()

     SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkTransparentShader)

 private:

     // these are a cache from the call to setContext()

     const SkBitmap* fDevice;

     uint8_t         fAlpha;

     SkTransparentShader(SkReadBuffer& buffer) : INHERITED(buffer) {}

     typedef SkShader INHERITED;

 };

 #endif