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// 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 CONTENT_BROWSER_RENDERER_HOST_BACKING_STORE_AURA_H_
#define CONTENT_BROWSER_RENDERER_HOST_BACKING_STORE_AURA_H_
#include "base/memory/scoped_ptr.h"
#include "content/browser/renderer_host/backing_store.h"
#include "content/common/content_export.h"
#include "third_party/skia/include/core/SkBitmap.h"
class SkCanvas;
namespace gfx {
class Point;
class Canvas;
}
namespace content {
class RenderProcessHost;
// A backing store that uses skia. This is the backing store used by
// RenderWidgetHostViewAura.
class BackingStoreAura : public BackingStore {
public:
CONTENT_EXPORT BackingStoreAura(
RenderWidgetHost* widget,
const gfx::Size& size);
virtual ~BackingStoreAura();
CONTENT_EXPORT void SkiaShowRect(const gfx::Point& point,
gfx::Canvas* canvas);
// Called when the view's backing scale factor changes.
void ScaleFactorChanged(float device_scale_factor);
// BackingStore implementation.
virtual size_t MemorySize() OVERRIDE;
virtual void PaintToBackingStore(
RenderProcessHost* process,
TransportDIB::Id bitmap,
const gfx::Rect& bitmap_rect,
const std::vector<gfx::Rect>& copy_rects,
float scale_factor,
const base::Closure& completion_callback,
bool* scheduled_completion_callback) OVERRIDE;
virtual bool CopyFromBackingStore(const gfx::Rect& rect,
skia::PlatformCanvas* output) OVERRIDE;
virtual void ScrollBackingStore(int dx, int dy,
const gfx::Rect& clip_rect,
const gfx::Size& view_size) OVERRIDE;
private:
SkBitmap bitmap_;
scoped_ptr<SkCanvas> canvas_;
int device_scale_factor_;
DISALLOW_COPY_AND_ASSIGN(BackingStoreAura);
};
} // namespace content
#endif // CONTENT_BROWSER_RENDERER_HOST_BACKING_STORE_AURA_H_
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