| // 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" |
| |
| // TODO(robertphillips): change this to "class SkBaseDevice;" |
| #include "third_party/skia/include/core/SkDevice.h" |
| |
| 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(SkBaseDevice* 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_ |
| |