WebCore/svg/graphics/SVGImage.h

   1 /*
   2  * Copyright (C) 2006 Eric Seidel (eric@webkit.org)
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions
   6  * are met:
   7  * 1. Redistributions of source code must retain the above copyright
   8  *    notice, this list of conditions and the following disclaimer.
   9  * 2. Redistributions in binary form must reproduce the above copyright
  10  *    notice, this list of conditions and the following disclaimer in the
  11  *    documentation and/or other materials provided with the distribution.
  12  *
  13  * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
  14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
  17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
  21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  24  */
  25
  26 #ifndef SVGImage_h
  27 #define SVGImage_h
  28
  29 #if ENABLE(SVG)
  30
  31 #include "Image.h"
  32 #include "ImageBuffer.h"
  33 #include "IntSize.h"
  34 #include <wtf/OwnPtr.h>
  35
  36 namespace WebCore {
  37
  38     class SVGDocument;
  39     class Frame;
  40     class FrameView;
  41     class Page;
  42
  43     class SVGImage : public Image {
  44     public:
  45         static PassRefPtr<SVGImage> create(ImageObserver* observer)
  46         {
  47             return adoptRef(new SVGImage(observer));
  48         }
  49         ~SVGImage();
  50
  51         virtual void setContainerSize(const IntSize&);
  52         virtual bool usesContainerSize() const;
  53         virtual bool hasRelativeWidth() const;
  54         virtual bool hasRelativeHeight() const;
  55
  56         virtual IntSize size() const;
  57
  58         virtual bool dataChanged(bool allDataReceived);
  59
  60         // FIXME: SVGImages are underreporting decoded sizes and will be unable
  61         // to prune because these functions are not implemented yet.
  62         virtual void destroyDecodedData(bool incremental = false, bool preserveNearbyFrames = false) { }
  63         virtual unsigned decodedSize() const { return 0; }
  64
  65         virtual NativeImagePtr frameAtIndex(size_t) { return 0; }
  66
  67 private:
  68         SVGImage(ImageObserver*);
  69         virtual void draw(GraphicsContext*, const FloatRect& fromRect, const FloatRect& toRect, CompositeOperator);
  70
  71         virtual NativeImagePtr nativeImageForCurrentFrame();
  72
  73         SVGDocument* m_document;
  74         OwnPtr<Page> m_page;
  75         RefPtr<Frame> m_frame;
  76         RefPtr<FrameView> m_frameView;
  77         IntSize m_minSize;
  78         OwnPtr<ImageBuffer> m_frameCache;
  79     };
  80 }
  81
  82 #endif // ENABLE(SVG)
  83
  84 #endif