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1 // Copyright 2013 The Chromium Authors. All rights reserved. | 1 // Copyright 2013 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef SKY_ENGINE_CORE_FRAME_IMAGEBITMAP_H_ | 5 #ifndef SKY_ENGINE_CORE_FRAME_IMAGEBITMAP_H_ |
6 #define SKY_ENGINE_CORE_FRAME_IMAGEBITMAP_H_ | 6 #define SKY_ENGINE_CORE_FRAME_IMAGEBITMAP_H_ |
7 | 7 |
8 #include "sky/engine/tonic/dart_wrappable.h" | 8 #include "sky/engine/tonic/dart_wrappable.h" |
9 #include "sky/engine/core/html/HTMLImageElement.h" | 9 #include "sky/engine/core/html/HTMLImageElement.h" |
10 #include "sky/engine/core/html/canvas/CanvasImageSource.h" | |
11 #include "sky/engine/platform/geometry/IntRect.h" | 10 #include "sky/engine/platform/geometry/IntRect.h" |
12 #include "sky/engine/platform/graphics/Image.h" | 11 #include "sky/engine/platform/graphics/Image.h" |
13 #include "sky/engine/platform/heap/Handle.h" | 12 #include "sky/engine/platform/heap/Handle.h" |
14 #include "sky/engine/wtf/PassRefPtr.h" | 13 #include "sky/engine/wtf/PassRefPtr.h" |
15 #include "sky/engine/wtf/RefCounted.h" | 14 #include "sky/engine/wtf/RefCounted.h" |
16 | 15 |
17 namespace blink { | 16 namespace blink { |
18 | 17 |
19 class HTMLCanvasElement; | |
20 class ImageData; | 18 class ImageData; |
21 | 19 |
22 class ImageBitmap final : public RefCounted<ImageBitmap>, public DartWrappable,
public ImageLoaderClient, public CanvasImageSource { | 20 class ImageBitmap final : public RefCounted<ImageBitmap>, public DartWrappable,
public ImageLoaderClient { |
23 DEFINE_WRAPPERTYPEINFO(); | 21 DEFINE_WRAPPERTYPEINFO(); |
24 public: | 22 public: |
25 static PassRefPtr<ImageBitmap> create(HTMLImageElement*, const IntRect&); | 23 static PassRefPtr<ImageBitmap> create(HTMLImageElement*, const IntRect&); |
26 static PassRefPtr<ImageBitmap> create(HTMLCanvasElement*, const IntRect&); | |
27 static PassRefPtr<ImageBitmap> create(ImageData*, const IntRect&); | 24 static PassRefPtr<ImageBitmap> create(ImageData*, const IntRect&); |
28 static PassRefPtr<ImageBitmap> create(ImageBitmap*, const IntRect&); | 25 static PassRefPtr<ImageBitmap> create(ImageBitmap*, const IntRect&); |
29 static PassRefPtr<ImageBitmap> create(Image*, const IntRect&); | 26 static PassRefPtr<ImageBitmap> create(Image*, const IntRect&); |
30 | 27 |
31 PassRefPtr<Image> bitmapImage() const; | 28 PassRefPtr<Image> bitmapImage() const; |
32 PassRefPtr<HTMLImageElement> imageElement() const { return m_imageElement; } | 29 PassRefPtr<HTMLImageElement> imageElement() const { return m_imageElement; } |
33 | 30 |
34 IntRect bitmapRect() const { return m_bitmapRect; } | 31 IntRect bitmapRect() const { return m_bitmapRect; } |
35 | 32 |
36 int width() const { return m_cropRect.width(); } | 33 int width() const { return m_cropRect.width(); } |
37 int height() const { return m_cropRect.height(); } | 34 int height() const { return m_cropRect.height(); } |
38 IntSize size() const { return m_cropRect.size(); } | 35 IntSize size() const { return m_cropRect.size(); } |
39 | 36 |
40 virtual ~ImageBitmap(); | 37 virtual ~ImageBitmap(); |
41 | 38 |
42 // CanvasImageSource implementation | |
43 virtual PassRefPtr<Image> getSourceImageForCanvas(SourceImageMode, SourceIma
geStatus*) const override; | |
44 virtual void adjustDrawRects(FloatRect* srcRect, FloatRect* dstRect) const o
verride; | |
45 virtual FloatSize sourceSize() const override; | |
46 | |
47 private: | 39 private: |
48 ImageBitmap(HTMLImageElement*, const IntRect&); | 40 ImageBitmap(HTMLImageElement*, const IntRect&); |
49 ImageBitmap(HTMLCanvasElement*, const IntRect&); | |
50 ImageBitmap(ImageData*, const IntRect&); | 41 ImageBitmap(ImageData*, const IntRect&); |
51 ImageBitmap(ImageBitmap*, const IntRect&); | 42 ImageBitmap(ImageBitmap*, const IntRect&); |
52 ImageBitmap(Image*, const IntRect&); | 43 ImageBitmap(Image*, const IntRect&); |
53 | 44 |
54 // ImageLoaderClient | 45 // ImageLoaderClient |
55 virtual void notifyImageSourceChanged() override; | 46 virtual void notifyImageSourceChanged() override; |
56 virtual bool requestsHighLiveResourceCachePriority() override { return true;
} | 47 virtual bool requestsHighLiveResourceCachePriority() override { return true;
} |
57 | 48 |
58 // ImageBitmaps constructed from HTMLImageElements hold a reference to the H
TMLImageElement until | 49 // ImageBitmaps constructed from HTMLImageElements hold a reference to the H
TMLImageElement until |
59 // the image source changes. | 50 // the image source changes. |
60 RefPtr<HTMLImageElement> m_imageElement; | 51 RefPtr<HTMLImageElement> m_imageElement; |
61 RefPtr<Image> m_bitmap; | 52 RefPtr<Image> m_bitmap; |
62 | 53 |
63 IntRect m_bitmapRect; // The rect where the underlying Image should be place
d in reference to the ImageBitmap. | 54 IntRect m_bitmapRect; // The rect where the underlying Image should be place
d in reference to the ImageBitmap. |
64 IntRect m_cropRect; | 55 IntRect m_cropRect; |
65 | 56 |
66 // The offset by which the desired Image is stored internally. | 57 // The offset by which the desired Image is stored internally. |
67 // ImageBitmaps constructed from HTMLImageElements reference the entire Imag
eResource and may have a non-zero bitmap offset. | 58 // ImageBitmaps constructed from HTMLImageElements reference the entire Imag
eResource and may have a non-zero bitmap offset. |
68 // ImageBitmaps not constructed from HTMLImageElements always pre-crop and s
tore the image at (0, 0). | 59 // ImageBitmaps not constructed from HTMLImageElements always pre-crop and s
tore the image at (0, 0). |
69 IntPoint m_bitmapOffset; | 60 IntPoint m_bitmapOffset; |
70 | 61 |
71 }; | 62 }; |
72 | 63 |
73 } // namespace blink | 64 } // namespace blink |
74 | 65 |
75 #endif // SKY_ENGINE_CORE_FRAME_IMAGEBITMAP_H_ | 66 #endif // SKY_ENGINE_CORE_FRAME_IMAGEBITMAP_H_ |
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