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// Copyright 2010 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 CC_LAYERS_IMAGE_LAYER_H_
#define CC_LAYERS_IMAGE_LAYER_H_
#include "cc/base/cc_export.h"
#include "cc/layers/content_layer.h"
#include "third_party/skia/include/core/SkBitmap.h"
namespace cc {
class ImageLayerUpdater;
// A Layer that contains only an Image element.
class CC_EXPORT ImageLayer : public TiledLayer {
public:
static scoped_refptr<ImageLayer> Create();
// Layer implementation.
virtual bool DrawsContent() const OVERRIDE;
virtual void SetTexturePriorities(const PriorityCalculator& priority_calc)
OVERRIDE;
virtual void Update(ResourceUpdateQueue* queue,
const OcclusionTracker* occlusion,
RenderingStats* stats) OVERRIDE;
virtual void CalculateContentsScale(float ideal_contents_scale,
float device_scale_factor,
float page_scale_factor,
bool animating_transform_to_screen,
float* contents_scale_x,
float* contents_scale_y,
gfx::Size* content_bounds) OVERRIDE;
void SetBitmap(const SkBitmap& image);
private:
ImageLayer();
virtual ~ImageLayer();
// TiledLayer Implementation.
virtual LayerUpdater* Updater() const OVERRIDE;
virtual void CreateUpdaterIfNeeded() OVERRIDE;
float ImageContentsScaleX() const;
float ImageContentsScaleY() const;
SkBitmap bitmap_;
scoped_refptr<ImageLayerUpdater> updater_;
DISALLOW_COPY_AND_ASSIGN(ImageLayer);
};
} // namespace cc
#endif // CC_LAYERS_IMAGE_LAYER_H_
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