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