graphics_2d.h

Go to the documentation of this file.

// Copyright (c) 2012 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 PPAPI_CPP_GRAPHICS_2D_H_
#define PPAPI_CPP_GRAPHICS_2D_H_

#include "ppapi/c/pp_stdint.h"
#include "ppapi/cpp/resource.h"
#include "ppapi/cpp/size.h"


namespace pp {

class CompletionCallback;
class ImageData;
class InstanceHandle;
class Point;
class Rect;

class Graphics2D : public Resource {
 public:
  Graphics2D();

  Graphics2D(const Graphics2D& other);

  Graphics2D(const InstanceHandle& instance,
             const Size& size,
             bool is_always_opaque);

  virtual ~Graphics2D();

  Graphics2D& operator=(const Graphics2D& other);

  const Size& size() const { return size_; }

  void PaintImageData(const ImageData& image,
                      const Point& top_left);

  void PaintImageData(const ImageData& image,
                      const Point& top_left,
                      const Rect& src_rect);

  void Scroll(const Rect& clip, const Point& amount);

  void ReplaceContents(ImageData* image);


  // TODO(darin): We should ensure that the completion callback always runs, so
  // that it is easier for consumers to manage memory referenced by a callback.

  // TODO(): Add back in the synchronous mode description once we have support
  // for it.
  int32_t Flush(const CompletionCallback& cc);

  bool SetScale(float scale);

  float GetScale();

  bool SetLayerTransform(float scale,
                         const Point& origin,
                         const Point& translate);
 private:
  Size size_;
};

}  // namespace pp

#endif  // PPAPI_CPP_GRAPHICS_2D_H_