1 /* 2 * Copyright (C) Research In Motion Limited 2010. All rights reserved. 3 * 4 * This library is free software; you can redistribute it and/or 5 * modify it under the terms of the GNU Library General Public 6 * License as published by the Free Software Foundation; either 7 * version 2 of the License, or (at your option) any later version. 8 * 9 * This library is distributed in the hope that it will be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12 * Library General Public License for more details. 13 * 14 * You should have received a copy of the GNU Library General Public License 15 * along with this library; see the file COPYING.LIB. If not, write to 16 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 17 * Boston, MA 02110-1301, USA. 18 */ 19 20 #ifndef SVGMarkerLayoutInfo_h 21 #define SVGMarkerLayoutInfo_h 22 23 #if ENABLE(SVG) 24 #include "AffineTransform.h" 25 #include "RenderObject.h" 26 #include "SVGMarkerData.h" 27 #include <wtf/Noncopyable.h> 28 29 namespace WebCore { 30 31 class Path; 32 class RenderSVGResourceMarker; 33 34 struct MarkerLayout { 35 MarkerLayout(RenderSVGResourceMarker* markerObj = 0, AffineTransform matrixObj = AffineTransform()) markerMarkerLayout36 : marker(markerObj) 37 , matrix(matrixObj) 38 { 39 ASSERT(marker); 40 } 41 42 RenderSVGResourceMarker* marker; 43 AffineTransform matrix; 44 }; 45 46 class SVGMarkerLayoutInfo { 47 WTF_MAKE_NONCOPYABLE(SVGMarkerLayoutInfo); 48 public: 49 SVGMarkerLayoutInfo(); 50 ~SVGMarkerLayoutInfo(); 51 52 FloatRect calculateBoundaries(RenderSVGResourceMarker* startMarker, RenderSVGResourceMarker* midMarker, RenderSVGResourceMarker* endMarker, float strokeWidth, const Path&); 53 void drawMarkers(PaintInfo&); 54 55 // Used by static inline helper functions in SVGMarkerLayoutInfo.cpp markerData()56 SVGMarkerData& markerData() { return m_markerData; } midMarker()57 RenderSVGResourceMarker* midMarker() const { return m_midMarker; } elementIndex()58 int& elementIndex() { return m_elementIndex; } 59 void addLayoutedMarker(RenderSVGResourceMarker*, const FloatPoint& origin, float angle); 60 void clear(); 61 62 private: 63 RenderSVGResourceMarker* m_midMarker; 64 65 // Used while layouting markers 66 int m_elementIndex; 67 SVGMarkerData m_markerData; 68 float m_strokeWidth; 69 70 // Holds the final computed result 71 Vector<MarkerLayout> m_layout; 72 }; 73 74 } 75 76 #endif 77 #endif 78