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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 #include "core/rendering/svg/RenderSVGModelObject.h"
     28 
     29 namespace WebCore {
     30 
     31 class RenderImageResource;
     32 class SVGImageElement;
     33 
     34 class RenderSVGImage FINAL : public RenderSVGModelObject {
     35 public:
     36     explicit RenderSVGImage(SVGImageElement*);
     37     virtual ~RenderSVGImage();
     38 
     39     bool updateImageViewport();
     40     virtual void setNeedsBoundariesUpdate() { m_needsBoundariesUpdate = true; }
     41     virtual bool needsBoundariesUpdate() OVERRIDE { return m_needsBoundariesUpdate; }
     42     virtual void setNeedsTransformUpdate() { m_needsTransformUpdate = true; }
     43 
     44     RenderImageResource* imageResource() { return m_imageResource.get(); }
     45 
     46     // Note: Assumes the PaintInfo context has had all local transforms applied.
     47     void paintForeground(PaintInfo&);
     48 
     49 private:
     50     virtual const char* renderName() const { return "RenderSVGImage"; }
     51     virtual bool isSVGImage() const OVERRIDE { return true; }
     52 
     53     virtual const AffineTransform& localToParentTransform() const { return m_localTransform; }
     54 
     55     virtual FloatRect objectBoundingBox() const { return m_objectBoundingBox; }
     56     virtual FloatRect strokeBoundingBox() const { return m_objectBoundingBox; }
     57     virtual FloatRect repaintRectInLocalCoordinates() const { return m_repaintBoundingBox; }
     58 
     59     virtual void addFocusRingRects(Vector<IntRect>&, const LayoutPoint& additionalOffset, const RenderLayerModelObject* paintContainer = 0) OVERRIDE;
     60 
     61     virtual void imageChanged(WrappedImagePtr, const IntRect* = 0);
     62 
     63     virtual void layout();
     64     virtual void paint(PaintInfo&, const LayoutPoint&);
     65 
     66     void invalidateBufferedForeground();
     67 
     68     virtual bool nodeAtFloatPoint(const HitTestRequest&, HitTestResult&, const FloatPoint& pointInParent, HitTestAction);
     69 
     70     virtual AffineTransform localTransform() const { return m_localTransform; }
     71 
     72     bool m_needsBoundariesUpdate : 1;
     73     bool m_needsTransformUpdate : 1;
     74     AffineTransform m_localTransform;
     75     FloatRect m_objectBoundingBox;
     76     FloatRect m_repaintBoundingBox;
     77     OwnPtr<RenderImageResource> m_imageResource;
     78 
     79     OwnPtr<ImageBuffer> m_bufferedForeground;
     80 };
     81 
     82 DEFINE_RENDER_OBJECT_TYPE_CASTS(RenderSVGImage, isSVGImage());
     83 
     84 } // namespace WebCore
     85 
     86 #endif // RenderSVGImage_h
     87