1 /* 2 * Copyright (C) 2004, 2005, 2007 Nikolas Zimmermann <zimmermann (at) kde.org> 3 * Copyright (C) 2004, 2005 Rob Buis <buis (at) kde.org> 4 * Copyright (C) 2005 Eric Seidel <eric (at) webkit.org> 5 * Copyright (C) 2006 Apple Computer, Inc 6 * Copyright (C) 2009 Google, Inc. 7 * Copyright (C) 2011 Renata Hodovan <reni (at) webkit.org> 8 * Copyright (C) 2011 University of Szeged 9 * 10 * This library is free software; you can redistribute it and/or 11 * modify it under the terms of the GNU Library General Public 12 * License as published by the Free Software Foundation; either 13 * version 2 of the License, or (at your option) any later version. 14 * 15 * This library is distributed in the hope that it will be useful, 16 * but WITHOUT ANY WARRANTY; without even the implied warranty of 17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 18 * Library General Public License for more details. 19 * 20 * You should have received a copy of the GNU Library General Public License 21 * along with this library; see the file COPYING.LIB. If not, write to 22 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 23 * Boston, MA 02110-1301, USA. 24 */ 25 26 #ifndef RenderSVGShape_h 27 #define RenderSVGShape_h 28 29 #include "core/platform/graphics/FloatRect.h" 30 #include "core/platform/graphics/transforms/AffineTransform.h" 31 #include "core/rendering/svg/RenderSVGModelObject.h" 32 #include "core/rendering/svg/SVGMarkerData.h" 33 #include "wtf/OwnPtr.h" 34 #include "wtf/Vector.h" 35 36 namespace WebCore { 37 38 class FloatPoint; 39 class GraphicsContextStateSaver; 40 class RenderSVGContainer; 41 class RenderSVGPath; 42 class RenderSVGResource; 43 class SVGGraphicsElement; 44 45 class RenderSVGShape : public RenderSVGModelObject { 46 public: 47 explicit RenderSVGShape(SVGGraphicsElement*); 48 RenderSVGShape(SVGGraphicsElement*, Path*, bool); 49 virtual ~RenderSVGShape(); 50 51 void setNeedsShapeUpdate() { m_needsShapeUpdate = true; } 52 virtual void setNeedsBoundariesUpdate() OVERRIDE FINAL { m_needsBoundariesUpdate = true; } 53 virtual bool needsBoundariesUpdate() OVERRIDE FINAL { return m_needsBoundariesUpdate; } 54 virtual void setNeedsTransformUpdate() OVERRIDE FINAL { m_needsTransformUpdate = true; } 55 virtual void fillShape(GraphicsContext*) const; 56 virtual void strokeShape(GraphicsContext*) const; 57 58 Path& path() const 59 { 60 ASSERT(m_path); 61 return *m_path; 62 } 63 64 protected: 65 virtual void updateShapeFromElement(); 66 virtual bool isEmpty() const; 67 virtual bool shapeDependentStrokeContains(const FloatPoint&); 68 virtual bool shapeDependentFillContains(const FloatPoint&, const WindRule) const; 69 float strokeWidth() const; 70 bool hasPath() const { return m_path.get(); } 71 bool hasSmoothStroke() const; 72 73 bool hasNonScalingStroke() const { return style()->svgStyle()->vectorEffect() == VE_NON_SCALING_STROKE; } 74 AffineTransform nonScalingStrokeTransform() const; 75 Path* nonScalingStrokePath(const Path*, const AffineTransform&) const; 76 77 FloatRect m_fillBoundingBox; 78 FloatRect m_strokeBoundingBox; 79 80 private: 81 // Hit-detection separated for the fill and the stroke 82 bool fillContains(const FloatPoint&, bool requiresFill = true, const WindRule fillRule = RULE_NONZERO); 83 bool strokeContains(const FloatPoint&, bool requiresStroke = true); 84 85 virtual FloatRect repaintRectInLocalCoordinates() const OVERRIDE FINAL { return m_repaintBoundingBox; } 86 virtual const AffineTransform& localToParentTransform() const OVERRIDE FINAL { return m_localTransform; } 87 virtual AffineTransform localTransform() const OVERRIDE FINAL { return m_localTransform; } 88 89 virtual bool isSVGShape() const OVERRIDE FINAL { return true; } 90 virtual const char* renderName() const { return "RenderSVGShape"; } 91 92 virtual void layout() OVERRIDE FINAL; 93 virtual void paint(PaintInfo&, const LayoutPoint&) OVERRIDE FINAL; 94 virtual void addFocusRingRects(Vector<IntRect>&, const LayoutPoint& additionalOffset, const RenderLayerModelObject* paintContainer = 0) OVERRIDE FINAL; 95 96 virtual bool nodeAtFloatPoint(const HitTestRequest&, HitTestResult&, const FloatPoint& pointInParent, HitTestAction) OVERRIDE FINAL; 97 98 virtual FloatRect objectBoundingBox() const OVERRIDE FINAL { return m_fillBoundingBox; } 99 virtual FloatRect strokeBoundingBox() const OVERRIDE FINAL { return m_strokeBoundingBox; } 100 FloatRect calculateObjectBoundingBox() const; 101 FloatRect calculateStrokeBoundingBox() const; 102 void updateRepaintBoundingBox(); 103 104 bool setupNonScalingStrokeContext(AffineTransform&, GraphicsContextStateSaver&); 105 106 bool shouldGenerateMarkerPositions() const; 107 FloatRect markerRect(float strokeWidth) const; 108 void processMarkerPositions(); 109 110 void fillShape(RenderStyle*, GraphicsContext*); 111 void strokeShape(RenderStyle*, GraphicsContext*); 112 void fillAndStrokeShape(GraphicsContext*); 113 void drawMarkers(PaintInfo&); 114 115 private: 116 FloatRect m_repaintBoundingBox; 117 FloatRect m_repaintBoundingBoxExcludingShadow; 118 AffineTransform m_localTransform; 119 OwnPtr<Path> m_path; 120 Vector<MarkerPosition> m_markerPositions; 121 122 bool m_needsBoundariesUpdate : 1; 123 bool m_needsShapeUpdate : 1; 124 bool m_needsTransformUpdate : 1; 125 }; 126 127 inline RenderSVGShape* toRenderSVGShape(RenderObject* object) 128 { 129 ASSERT_WITH_SECURITY_IMPLICATION(!object || object->isSVGShape()); 130 return static_cast<RenderSVGShape*>(object); 131 } 132 133 inline const RenderSVGShape* toRenderSVGShape(const RenderObject* object) 134 { 135 ASSERT_WITH_SECURITY_IMPLICATION(!object || object->isSVGShape()); 136 return static_cast<const RenderSVGShape*>(object); 137 } 138 139 // This will catch anyone doing an unnecessary cast. 140 void toRenderSVGShape(const RenderSVGShape*); 141 142 } 143 144 #endif 145
