| /* |
| * Copyright (c) 2006,2007,2008, Google Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are |
| * met: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following disclaimer |
| * in the documentation and/or other materials provided with the |
| * distribution. |
| * * Neither the name of Google Inc. nor the names of its |
| * contributors may be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #ifndef BitmapImageSingleFrameSkia_h |
| #define BitmapImageSingleFrameSkia_h |
| |
| #include "Image.h" |
| #include "NativeImageSkia.h" |
| |
| namespace WebCore { |
| |
| // This image class can be used in places which need an Image, but have |
| // raw pixel data rather than undecoded image data. |
| // The Image is simpler than a BitmapImage, as it does not have image |
| // observers, animation, multiple frames, or non-decoded data. |
| // Therefore trimming the decoded data (destroyDecodedData()) has no effect. |
| // |
| // The difficulty with putting this in BitmapImage::create(NativeImagePtr) |
| // is that NativeImagePtr = NativeImageSkia, yet callers have SkBitmap. |
| class BitmapImageSingleFrameSkia : public Image { |
| public: |
| // Creates a new Image from the given SkBitmap. If "copyPixels" is true, a |
| // deep copy is done. Otherwise, a shallow copy is done (pixel data is |
| // ref'ed). |
| static PassRefPtr<BitmapImageSingleFrameSkia> create(const SkBitmap&, bool copyPixels, float resolutionScale = 1); |
| |
| virtual bool isBitmapImage() const; |
| |
| virtual bool currentFrameHasAlpha(); |
| |
| virtual IntSize size() const; |
| |
| // Do nothing, as we only have the one representation of data (decoded). |
| virtual void destroyDecodedData(bool destroyAll = true); |
| |
| virtual unsigned decodedSize() const; |
| |
| // We only have a single frame. |
| virtual NativeImagePtr nativeImageForCurrentFrame(); |
| |
| #if !ASSERT_DISABLED |
| virtual bool notSolidColor(); |
| #endif |
| |
| protected: |
| virtual void draw(GraphicsContext*, const FloatRect& dstRect, const FloatRect& srcRect, ColorSpace styleColorSpace, CompositeOperator); |
| |
| private: |
| NativeImageSkia m_nativeImage; |
| |
| // Creates a new Image from the given SkBitmap, using a shallow copy. |
| BitmapImageSingleFrameSkia(const SkBitmap&, float resolutionScale); |
| }; |
| |
| FloatRect normalizeRect(const FloatRect&); |
| |
| } // namespace WebCore |
| |
| #endif // BitmapImageSingleFrameSkia_h |