1 /* 2 * Copyright (C) 2006 Nikolas Zimmermann <zimmermann@kde.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 SVGResourceClipper_h 27 #define SVGResourceClipper_h 28 29 #if ENABLE(SVG) 30 #include "FloatRect.h" 31 #include "Path.h" 32 #include "RenderObject.h" 33 #include "SVGResource.h" 34 35 namespace WebCore { 36 37 struct ClipData { 38 Path path; 39 WindRule windRule; 40 bool bboxUnits : 1; 41 }; 42 43 class ClipDataList { 44 public: addPath(const Path & pathData,WindRule windRule,bool bboxUnits)45 void addPath(const Path& pathData, WindRule windRule, bool bboxUnits) 46 { 47 ClipData clipData; 48 49 clipData.path = pathData; 50 clipData.windRule = windRule; 51 clipData.bboxUnits = bboxUnits; 52 53 m_clipData.append(clipData); 54 } 55 clear()56 void clear() { m_clipData.clear(); } clipData()57 const Vector<ClipData>& clipData() const { return m_clipData; } isEmpty()58 bool isEmpty() const { return m_clipData.isEmpty(); } 59 private: 60 Vector<ClipData> m_clipData; 61 }; 62 63 class GraphicsContext; 64 65 class SVGResourceClipper : public SVGResource { 66 public: create()67 static PassRefPtr<SVGResourceClipper> create() { return adoptRef(new SVGResourceClipper); } 68 virtual ~SVGResourceClipper(); 69 70 virtual void invalidate(); 71 72 void resetClipData(); 73 void addClipData(const Path&, WindRule, bool bboxUnits); 74 75 const ClipDataList& clipData() const; 76 resourceType()77 virtual SVGResourceType resourceType() const { return ClipperResourceType; } 78 virtual TextStream& externalRepresentation(TextStream&) const; 79 80 // To be implemented by the specific rendering devices 81 void applyClip(GraphicsContext*, const FloatRect& boundingBox) const; 82 FloatRect clipperBoundingBox(const FloatRect& oob); 83 private: 84 SVGResourceClipper(); 85 ClipDataList m_clipData; 86 FloatRect m_clipperBoundingBox; 87 }; 88 89 TextStream& operator<<(TextStream&, WindRule); 90 TextStream& operator<<(TextStream&, const ClipData&); 91 92 SVGResourceClipper* getClipperById(Document*, const AtomicString&, const RenderObject*); 93 94 } // namespace WebCore 95 96 #endif 97 98 #endif // SVGResourceClipper_h 99