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// Copyright (c) 2011 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef SKIA_EXT_VECTOR_CANVAS_H_
#define SKIA_EXT_VECTOR_CANVAS_H_
#include "base/compiler_specific.h"
#include "skia/ext/platform_canvas.h"
class SkDevice;
namespace skia {
// This class is a specialization of the regular PlatformCanvas. It is designed
// to work with a VectorDevice to manage platform-specific drawing. It allows
// using both Skia operations and platform-specific operations. It *doesn't*
// support reading back from the bitmap backstore since it is not used.
class SK_API VectorCanvas : public PlatformCanvas {
public:
// Ownership of |device| is transfered to VectorCanvas.
explicit VectorCanvas(SkDevice* device);
virtual ~VectorCanvas();
virtual SkBounder* setBounder(SkBounder* bounder) OVERRIDE;
virtual SkDrawFilter* setDrawFilter(SkDrawFilter* filter) OVERRIDE;
private:
// Returns true if the top device is vector based and not bitmap based.
bool IsTopDeviceVectorial() const;
// Copy & assign are not supported.
VectorCanvas(const VectorCanvas&);
const VectorCanvas& operator=(const VectorCanvas&);
};
} // namespace skia
#endif // SKIA_EXT_VECTOR_CANVAS_H_
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