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      1 /*
      2  * Copyright (C) 2013 Google Inc. All rights reserved.
      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 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 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 SVGImageForContainer_h
     27 #define SVGImageForContainer_h
     28 
     29 #include "core/svg/graphics/SVGImage.h"
     30 #include "platform/geometry/FloatRect.h"
     31 #include "platform/geometry/FloatSize.h"
     32 #include "platform/graphics/Image.h"
     33 
     34 namespace WebCore {
     35 
     36 class SVGImageForContainer : public Image {
     37 public:
     38     static PassRefPtr<SVGImageForContainer> create(SVGImage* image, const FloatSize& containerSize, float zoom)
     39     {
     40         return adoptRef(new SVGImageForContainer(image, containerSize, zoom));
     41     }
     42 
     43     virtual bool isSVGImage() const OVERRIDE { return true; }
     44 
     45     virtual IntSize size() const OVERRIDE;
     46 
     47     virtual bool usesContainerSize() const OVERRIDE { return m_image->usesContainerSize(); }
     48     virtual bool hasRelativeWidth() const OVERRIDE { return m_image->hasRelativeWidth(); }
     49     virtual bool hasRelativeHeight() const OVERRIDE { return m_image->hasRelativeHeight(); }
     50     virtual void computeIntrinsicDimensions(Length& intrinsicWidth, Length& intrinsicHeight, FloatSize& intrinsicRatio) OVERRIDE
     51     {
     52         m_image->computeIntrinsicDimensions(intrinsicWidth, intrinsicHeight, intrinsicRatio);
     53     }
     54 
     55     virtual void draw(GraphicsContext*, const FloatRect&, const FloatRect&, CompositeOperator, blink::WebBlendMode) OVERRIDE;
     56 
     57     virtual void drawPattern(GraphicsContext*, const FloatRect&, const FloatSize&, const FloatPoint&, CompositeOperator, const FloatRect&, blink::WebBlendMode, const IntSize& repeatSpacing) OVERRIDE;
     58 
     59     // FIXME: Implement this to be less conservative.
     60     virtual bool currentFrameKnownToBeOpaque() OVERRIDE { return false; }
     61 
     62     virtual PassRefPtr<NativeImageSkia> nativeImageForCurrentFrame() OVERRIDE;
     63 
     64 private:
     65     SVGImageForContainer(SVGImage* image, const FloatSize& containerSize, float zoom)
     66         : m_image(image)
     67         , m_containerSize(containerSize)
     68         , m_zoom(zoom)
     69     {
     70     }
     71 
     72     virtual void destroyDecodedData(bool) OVERRIDE { }
     73 
     74     SVGImage* m_image;
     75     const FloatSize m_containerSize;
     76     const float m_zoom;
     77 };
     78 }
     79 
     80 #endif // SVGImageForContainer_h
     81