mirror of
https://github.com/flutter/flutter.git
synced 2026-02-20 02:29:02 +08:00
295f920116
I wrote a script to do this which is attached to the bug. TBR=abarth@chromium.org BUG=435361 Review URL: https://codereview.chromium.org/736373003
76 lines
3.0 KiB
C++
76 lines
3.0 KiB
C++
// Copyright 2013 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 SKY_ENGINE_CORE_FRAME_IMAGEBITMAP_H_
|
|
#define SKY_ENGINE_CORE_FRAME_IMAGEBITMAP_H_
|
|
|
|
#include "sky/engine/bindings/core/v8/ScriptWrappable.h"
|
|
#include "sky/engine/core/html/HTMLImageElement.h"
|
|
#include "sky/engine/core/html/canvas/CanvasImageSource.h"
|
|
#include "sky/engine/platform/geometry/IntRect.h"
|
|
#include "sky/engine/platform/graphics/Image.h"
|
|
#include "sky/engine/platform/heap/Handle.h"
|
|
#include "sky/engine/wtf/PassRefPtr.h"
|
|
#include "sky/engine/wtf/RefCounted.h"
|
|
|
|
namespace blink {
|
|
|
|
class HTMLCanvasElement;
|
|
class ImageData;
|
|
|
|
class ImageBitmap final : public RefCounted<ImageBitmap>, public ScriptWrappable, public ImageLoaderClient, public CanvasImageSource {
|
|
DEFINE_WRAPPERTYPEINFO();
|
|
public:
|
|
static PassRefPtr<ImageBitmap> create(HTMLImageElement*, const IntRect&);
|
|
static PassRefPtr<ImageBitmap> create(HTMLCanvasElement*, const IntRect&);
|
|
static PassRefPtr<ImageBitmap> create(ImageData*, const IntRect&);
|
|
static PassRefPtr<ImageBitmap> create(ImageBitmap*, const IntRect&);
|
|
static PassRefPtr<ImageBitmap> create(Image*, const IntRect&);
|
|
|
|
PassRefPtr<Image> bitmapImage() const;
|
|
PassRefPtr<HTMLImageElement> imageElement() const { return m_imageElement; }
|
|
|
|
IntRect bitmapRect() const { return m_bitmapRect; }
|
|
|
|
int width() const { return m_cropRect.width(); }
|
|
int height() const { return m_cropRect.height(); }
|
|
IntSize size() const { return m_cropRect.size(); }
|
|
|
|
virtual ~ImageBitmap();
|
|
|
|
// CanvasImageSource implementation
|
|
virtual PassRefPtr<Image> getSourceImageForCanvas(SourceImageMode, SourceImageStatus*) const override;
|
|
virtual void adjustDrawRects(FloatRect* srcRect, FloatRect* dstRect) const override;
|
|
virtual FloatSize sourceSize() const override;
|
|
|
|
private:
|
|
ImageBitmap(HTMLImageElement*, const IntRect&);
|
|
ImageBitmap(HTMLCanvasElement*, const IntRect&);
|
|
ImageBitmap(ImageData*, const IntRect&);
|
|
ImageBitmap(ImageBitmap*, const IntRect&);
|
|
ImageBitmap(Image*, const IntRect&);
|
|
|
|
// ImageLoaderClient
|
|
virtual void notifyImageSourceChanged() override;
|
|
virtual bool requestsHighLiveResourceCachePriority() override { return true; }
|
|
|
|
// ImageBitmaps constructed from HTMLImageElements hold a reference to the HTMLImageElement until
|
|
// the image source changes.
|
|
RefPtr<HTMLImageElement> m_imageElement;
|
|
RefPtr<Image> m_bitmap;
|
|
|
|
IntRect m_bitmapRect; // The rect where the underlying Image should be placed in reference to the ImageBitmap.
|
|
IntRect m_cropRect;
|
|
|
|
// The offset by which the desired Image is stored internally.
|
|
// ImageBitmaps constructed from HTMLImageElements reference the entire ImageResource and may have a non-zero bitmap offset.
|
|
// ImageBitmaps not constructed from HTMLImageElements always pre-crop and store the image at (0, 0).
|
|
IntPoint m_bitmapOffset;
|
|
|
|
};
|
|
|
|
} // namespace blink
|
|
|
|
#endif // SKY_ENGINE_CORE_FRAME_IMAGEBITMAP_H_
|