1 /* 2 * Copyright (C) 2006 Apple Computer, Inc. 3 * Copyright (C) 2007 Nikolas Zimmermann <zimmermann (at) kde.org> 4 * Copyright (C) Research In Motion Limited 2010-2012. All rights reserved. 5 * 6 * This library is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU Library General Public 8 * License as published by the Free Software Foundation; either 9 * version 2 of the License, or (at your option) any later version. 10 * 11 * This library is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14 * Library General Public License for more details. 15 * 16 * You should have received a copy of the GNU Library General Public License 17 * along with this library; see the file COPYING.LIB. If not, write to 18 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 19 * Boston, MA 02110-1301, USA. 20 */ 21 22 #ifndef RenderSVGText_h 23 #define RenderSVGText_h 24 25 #include "core/platform/graphics/transforms/AffineTransform.h" 26 #include "core/rendering/svg/RenderSVGBlock.h" 27 #include "core/rendering/svg/SVGTextLayoutAttributesBuilder.h" 28 29 namespace WebCore { 30 31 class RenderSVGInlineText; 32 class SVGTextElement; 33 class RenderSVGInlineText; 34 35 class RenderSVGText FINAL : public RenderSVGBlock { 36 public: 37 RenderSVGText(SVGTextElement*); 38 virtual ~RenderSVGText(); 39 40 virtual bool isChildAllowed(RenderObject*, RenderStyle*) const; 41 42 void setNeedsPositioningValuesUpdate() { m_needsPositioningValuesUpdate = true; } 43 virtual void setNeedsTransformUpdate() { m_needsTransformUpdate = true; } 44 void setNeedsTextMetricsUpdate() { m_needsTextMetricsUpdate = true; } 45 virtual FloatRect repaintRectInLocalCoordinates() const; 46 47 static RenderSVGText* locateRenderSVGTextAncestor(RenderObject*); 48 static const RenderSVGText* locateRenderSVGTextAncestor(const RenderObject*); 49 50 bool needsReordering() const { return m_needsReordering; } 51 Vector<SVGTextLayoutAttributes*>& layoutAttributes() { return m_layoutAttributes; } 52 53 void subtreeChildWasAdded(RenderObject*); 54 void subtreeChildWillBeRemoved(RenderObject*, Vector<SVGTextLayoutAttributes*, 2>& affectedAttributes); 55 void subtreeChildWasRemoved(const Vector<SVGTextLayoutAttributes*, 2>& affectedAttributes); 56 void subtreeStyleDidChange(RenderSVGInlineText*); 57 void subtreeTextDidChange(RenderSVGInlineText*); 58 59 private: 60 virtual const char* renderName() const { return "RenderSVGText"; } 61 virtual bool isSVGText() const { return true; } 62 63 virtual void paint(PaintInfo&, const LayoutPoint&); 64 virtual bool nodeAtPoint(const HitTestRequest&, HitTestResult&, const HitTestLocation& locationInContainer, const LayoutPoint& accumulatedOffset, HitTestAction) OVERRIDE; 65 virtual bool nodeAtFloatPoint(const HitTestRequest&, HitTestResult&, const FloatPoint& pointInParent, HitTestAction); 66 virtual PositionWithAffinity positionForPoint(const LayoutPoint&) OVERRIDE FINAL; 67 68 virtual bool requiresLayer() const { return false; } 69 virtual void layout(); 70 71 virtual void absoluteQuads(Vector<FloatQuad>&, bool* wasFixed) const; 72 73 virtual LayoutRect clippedOverflowRectForRepaint(const RenderLayerModelObject* repaintContainer) const OVERRIDE; 74 virtual void computeRectForRepaint(const RenderLayerModelObject* repaintContainer, LayoutRect&, bool fixed = false) const OVERRIDE; 75 virtual void computeFloatRectForRepaint(const RenderLayerModelObject* repaintContainer, FloatRect&, bool fixed = false) const OVERRIDE; 76 77 virtual void mapLocalToContainer(const RenderLayerModelObject* repaintContainer, TransformState&, MapCoordinatesFlags = ApplyContainerFlip, bool* wasFixed = 0) const OVERRIDE; 78 virtual const RenderObject* pushMappingToContainer(const RenderLayerModelObject* ancestorToStopAt, RenderGeometryMap&) const OVERRIDE; 79 virtual void addChild(RenderObject* child, RenderObject* beforeChild = 0); 80 virtual void removeChild(RenderObject*) OVERRIDE; 81 virtual void willBeDestroyed() OVERRIDE; 82 83 virtual FloatRect objectBoundingBox() const { return frameRect(); } 84 virtual FloatRect strokeBoundingBox() const; 85 86 virtual const AffineTransform& localToParentTransform() const { return m_localTransform; } 87 virtual AffineTransform localTransform() const { return m_localTransform; } 88 virtual RootInlineBox* createRootInlineBox(); 89 90 virtual RenderBlock* firstLineBlock() const; 91 virtual void updateFirstLetter(); 92 93 bool shouldHandleSubtreeMutations() const; 94 95 bool m_needsReordering : 1; 96 bool m_needsPositioningValuesUpdate : 1; 97 bool m_needsTransformUpdate : 1; 98 bool m_needsTextMetricsUpdate : 1; 99 AffineTransform m_localTransform; 100 SVGTextLayoutAttributesBuilder m_layoutAttributesBuilder; 101 Vector<SVGTextLayoutAttributes*> m_layoutAttributes; 102 }; 103 104 inline RenderSVGText* toRenderSVGText(RenderObject* object) 105 { 106 ASSERT_WITH_SECURITY_IMPLICATION(!object || object->isSVGText()); 107 return static_cast<RenderSVGText*>(object); 108 } 109 110 inline const RenderSVGText* toRenderSVGText(const RenderObject* object) 111 { 112 ASSERT_WITH_SECURITY_IMPLICATION(!object || object->isSVGText()); 113 return static_cast<const RenderSVGText*>(object); 114 } 115 116 // This will catch anyone doing an unnecessary cast. 117 void toRenderSVGText(const RenderSVGText*); 118 119 } 120 121 #endif 122
