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      1 /*
      2  * Copyright (C) 2006 Alexander Kellett <lypanov (at) kde.org>
      3  * Copyright (C) 2006, 2009 Apple Inc. All rights reserved.
      4  * Copyright (C) 2007 Rob Buis <buis (at) kde.org>
      5  * Copyright (C) 2009 Google, Inc.
      6  * Copyright (C) 2010 Patrick Gansterer <paroga (at) paroga.com>
      7  *
      8  * This library is free software; you can redistribute it and/or
      9  * modify it under the terms of the GNU Library General Public
     10  * License as published by the Free Software Foundation; either
     11  * version 2 of the License, or (at your option) any later version.
     12  *
     13  * This library is distributed in the hope that it will be useful,
     14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
     15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     16  * Library General Public License for more details.
     17  *
     18  * You should have received a copy of the GNU Library General Public License
     19  * along with this library; see the file COPYING.LIB.  If not, write to
     20  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
     21  * Boston, MA 02110-1301, USA.
     22  */
     23 
     24 #ifndef RenderSVGImage_h
     25 #define RenderSVGImage_h
     26 
     27 #if ENABLE(SVG)
     28 #include "AffineTransform.h"
     29 #include "FloatRect.h"
     30 #include "RenderSVGModelObject.h"
     31 #include "SVGPreserveAspectRatio.h"
     32 #include "SVGRenderSupport.h"
     33 
     34 namespace WebCore {
     35 
     36 class RenderImageResource;
     37 class SVGImageElement;
     38 
     39 class RenderSVGImage : public RenderSVGModelObject {
     40 public:
     41     RenderSVGImage(SVGImageElement*);
     42     virtual ~RenderSVGImage();
     43 
     44     virtual void setNeedsTransformUpdate() { m_needsTransformUpdate = true; }
     45     virtual void updateFromElement();
     46 
     47     RenderImageResource* imageResource() { return m_imageResource.get(); }
     48     const RenderImageResource* imageResource() const { return m_imageResource.get(); }
     49 
     50 private:
     51     virtual const char* renderName() const { return "RenderSVGImage"; }
     52     virtual bool isSVGImage() const { return true; }
     53 
     54     virtual const AffineTransform& localToParentTransform() const { return m_localTransform; }
     55 
     56     virtual FloatRect objectBoundingBox() const { return m_objectBoundingBox; }
     57     virtual FloatRect strokeBoundingBox() const { return m_objectBoundingBox; }
     58     virtual FloatRect repaintRectInLocalCoordinates() const { return m_repaintBoundingBox; }
     59 
     60     virtual void addFocusRingRects(Vector<IntRect>&, int tx, int ty);
     61 
     62     virtual void imageChanged(WrappedImagePtr, const IntRect* = 0);
     63 
     64     virtual void layout();
     65     virtual void paint(PaintInfo&, int parentX, int parentY);
     66 
     67     virtual bool requiresLayer() const { return false; }
     68 
     69     virtual bool nodeAtFloatPoint(const HitTestRequest&, HitTestResult&, const FloatPoint& pointInParent, HitTestAction);
     70 
     71     virtual AffineTransform localTransform() const { return m_localTransform; }
     72 
     73     bool m_updateCachedRepaintRect : 1;
     74     bool m_needsTransformUpdate : 1;
     75     AffineTransform m_localTransform;
     76     FloatRect m_objectBoundingBox;
     77     FloatRect m_repaintBoundingBox;
     78     OwnPtr<RenderImageResource> m_imageResource;
     79 };
     80 
     81 inline RenderSVGImage* toRenderSVGImage(RenderObject* object)
     82 {
     83     ASSERT(!object || object->isSVGImage());
     84     return static_cast<RenderSVGImage*>(object);
     85 }
     86 
     87 inline const RenderSVGImage* toRenderSVGImage(const RenderObject* object)
     88 {
     89     ASSERT(!object || object->isSVGImage());
     90     return static_cast<const RenderSVGImage*>(object);
     91 }
     92 
     93 // This will catch anyone doing an unnecessary cast.
     94 void toRenderSVGImage(const RenderSVGImage*);
     95 
     96 } // namespace WebCore
     97 
     98 #endif // ENABLE(SVG)
     99 #endif // RenderSVGImage_h
    100