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Diffstat (limited to 'src/3rdparty/webkit/WebCore/platform/graphics/ImageBuffer.h')
-rw-r--r-- | src/3rdparty/webkit/WebCore/platform/graphics/ImageBuffer.h | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/src/3rdparty/webkit/WebCore/platform/graphics/ImageBuffer.h b/src/3rdparty/webkit/WebCore/platform/graphics/ImageBuffer.h new file mode 100644 index 0000000..14f7461 --- /dev/null +++ b/src/3rdparty/webkit/WebCore/platform/graphics/ImageBuffer.h @@ -0,0 +1,90 @@ +/* + * Copyright (C) 2006 Nikolas Zimmermann <zimmermann@kde.org> + * Copyright (C) 2007, 2008 Apple 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: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. 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. + * + * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``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 APPLE COMPUTER, INC. OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY + * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef ImageBuffer_h +#define ImageBuffer_h + +#include "TransformationMatrix.h" +#include "Image.h" +#include "IntSize.h" +#include "ImageBufferData.h" +#include <wtf/OwnPtr.h> +#include <wtf/PassRefPtr.h> +#include <memory> + +namespace WebCore { + + class GraphicsContext; + class ImageData; + class IntPoint; + class IntRect; + class String; + + class ImageBuffer : Noncopyable { + public: + // Will return a null pointer on allocation failure. + static std::auto_ptr<ImageBuffer> create(const IntSize& size, bool grayScale) + { + bool success = false; + std::auto_ptr<ImageBuffer> buf(new ImageBuffer(size, grayScale, success)); + if (success) + return buf; + return std::auto_ptr<ImageBuffer>(); + } + + ~ImageBuffer(); + + const IntSize& size() const { return m_size; } + GraphicsContext* context() const; + + Image* image() const; + + void clearImage() { m_image.clear(); } + + PassRefPtr<ImageData> getImageData(const IntRect& rect) const; + void putImageData(ImageData* source, const IntRect& sourceRect, const IntPoint& destPoint); + + String toDataURL(const String& mimeType) const; +#if !PLATFORM(CG) + TransformationMatrix baseTransform() const { return TransformationMatrix(); } +#else + TransformationMatrix baseTransform() const { return TransformationMatrix(1, 0, 0, -1, 0, m_size.height()); } +#endif + private: + ImageBufferData m_data; + + IntSize m_size; + OwnPtr<GraphicsContext> m_context; + mutable RefPtr<Image> m_image; + + // This constructor will place its succes into the given out-variable + // so that create() knows when it should return failure. + ImageBuffer(const IntSize&, bool grayScale, bool& success); + }; + +} // namespace WebCore + +#endif // ImageBuffer_h |