1 /* 2 * Copyright (C) 1999 Lars Knoll (knoll (at) kde.org) 3 * (C) 1999 Antti Koivisto (koivisto (at) kde.org) 4 * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009 Apple Inc. 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 23 #ifndef RenderInline_h 24 #define RenderInline_h 25 26 #include "InlineFlowBox.h" 27 #include "RenderBoxModelObject.h" 28 #include "RenderLineBoxList.h" 29 30 namespace WebCore { 31 32 class Position; 33 34 class RenderInline : public RenderBoxModelObject { 35 public: 36 explicit RenderInline(Node*); 37 38 virtual void destroy(); 39 40 virtual void addChild(RenderObject* newChild, RenderObject* beforeChild = 0); 41 42 virtual int marginLeft() const; 43 virtual int marginRight() const; 44 virtual int marginTop() const; 45 virtual int marginBottom() const; 46 virtual int marginBefore() const; 47 virtual int marginAfter() const; 48 virtual int marginStart() const; 49 virtual int marginEnd() const; 50 51 virtual void absoluteRects(Vector<IntRect>&, int tx, int ty); 52 virtual void absoluteQuads(Vector<FloatQuad>&); 53 54 virtual IntSize offsetFromContainer(RenderObject*, const IntPoint&) const; 55 56 IntRect linesBoundingBox() const; 57 IntRect linesVisualOverflowBoundingBox() const; 58 59 InlineFlowBox* createAndAppendInlineFlowBox(); 60 61 void dirtyLineBoxes(bool fullLayout); 62 63 RenderLineBoxList* lineBoxes() { return &m_lineBoxes; } 64 const RenderLineBoxList* lineBoxes() const { return &m_lineBoxes; } 65 66 InlineFlowBox* firstLineBox() const { return m_lineBoxes.firstLineBox(); } 67 InlineFlowBox* lastLineBox() const { return m_lineBoxes.lastLineBox(); } 68 InlineBox* firstLineBoxIncludingCulling() const { return alwaysCreateLineBoxes() ? firstLineBox() : culledInlineFirstLineBox(); } 69 InlineBox* lastLineBoxIncludingCulling() const { return alwaysCreateLineBoxes() ? lastLineBox() : culledInlineLastLineBox(); } 70 71 virtual RenderBoxModelObject* virtualContinuation() const { return continuation(); } 72 RenderInline* inlineElementContinuation() const; 73 74 virtual void updateDragState(bool dragOn); 75 76 IntSize relativePositionedInlineOffset(const RenderBox* child) const; 77 78 virtual void addFocusRingRects(Vector<IntRect>&, int tx, int ty); 79 void paintOutline(GraphicsContext*, int tx, int ty); 80 81 using RenderBoxModelObject::continuation; 82 using RenderBoxModelObject::setContinuation; 83 84 bool alwaysCreateLineBoxes() const { return m_alwaysCreateLineBoxes; } 85 void setAlwaysCreateLineBoxes() { m_alwaysCreateLineBoxes = true; } 86 void updateAlwaysCreateLineBoxes(); 87 88 protected: 89 virtual void styleDidChange(StyleDifference, const RenderStyle* oldStyle); 90 91 private: 92 virtual RenderObjectChildList* virtualChildren() { return children(); } 93 virtual const RenderObjectChildList* virtualChildren() const { return children(); } 94 const RenderObjectChildList* children() const { return &m_children; } 95 RenderObjectChildList* children() { return &m_children; } 96 97 virtual const char* renderName() const; 98 99 virtual bool isRenderInline() const { return true; } 100 101 FloatRect culledInlineBoundingBox(const RenderInline* container) const; 102 IntRect culledInlineVisualOverflowBoundingBox() const; 103 InlineBox* culledInlineFirstLineBox() const; 104 InlineBox* culledInlineLastLineBox() const; 105 void culledInlineAbsoluteRects(const RenderInline* container, Vector<IntRect>&, const IntSize&); 106 void culledInlineAbsoluteQuads(const RenderInline* container, Vector<FloatQuad>&); 107 108 void addChildToContinuation(RenderObject* newChild, RenderObject* beforeChild); 109 virtual void addChildIgnoringContinuation(RenderObject* newChild, RenderObject* beforeChild = 0); 110 111 void splitInlines(RenderBlock* fromBlock, RenderBlock* toBlock, RenderBlock* middleBlock, 112 RenderObject* beforeChild, RenderBoxModelObject* oldCont); 113 void splitFlow(RenderObject* beforeChild, RenderBlock* newBlockBox, 114 RenderObject* newChild, RenderBoxModelObject* oldCont); 115 116 virtual void layout() { ASSERT_NOT_REACHED(); } // Do nothing for layout() 117 118 virtual void paint(PaintInfo&, int tx, int ty); 119 120 virtual bool nodeAtPoint(const HitTestRequest&, HitTestResult&, int x, int y, int tx, int ty, HitTestAction); 121 122 virtual bool requiresLayer() const { return isRelPositioned() || isTransparent() || hasMask(); } 123 124 virtual int offsetLeft() const; 125 virtual int offsetTop() const; 126 virtual int offsetWidth() const { return linesBoundingBox().width(); } 127 virtual int offsetHeight() const { return linesBoundingBox().height(); } 128 129 virtual IntRect clippedOverflowRectForRepaint(RenderBoxModelObject* repaintContainer); 130 virtual IntRect rectWithOutlineForRepaint(RenderBoxModelObject* repaintContainer, int outlineWidth); 131 virtual void computeRectForRepaint(RenderBoxModelObject* repaintContainer, IntRect& rect, bool fixed); 132 133 virtual void mapLocalToContainer(RenderBoxModelObject* repaintContainer, bool fixed, bool useTransforms, TransformState&) const; 134 virtual void mapAbsoluteToLocalPoint(bool fixed, bool useTransforms, TransformState&) const; 135 136 virtual VisiblePosition positionForPoint(const IntPoint&); 137 138 virtual IntRect borderBoundingBox() const 139 { 140 IntRect boundingBox = linesBoundingBox(); 141 return IntRect(0, 0, boundingBox.width(), boundingBox.height()); 142 } 143 144 virtual InlineFlowBox* createInlineFlowBox(); // Subclassed by SVG and Ruby 145 146 virtual void dirtyLinesFromChangedChild(RenderObject* child) { m_lineBoxes.dirtyLinesFromChangedChild(this, child); } 147 148 virtual int lineHeight(bool firstLine, LineDirectionMode, LinePositionMode = PositionOnContainingLine) const; 149 virtual int baselinePosition(FontBaseline, bool firstLine, LineDirectionMode, LinePositionMode = PositionOnContainingLine) const; 150 151 virtual void childBecameNonInline(RenderObject* child); 152 153 virtual void updateHitTestResult(HitTestResult&, const IntPoint&); 154 155 virtual void imageChanged(WrappedImagePtr, const IntRect* = 0); 156 157 #if ENABLE(DASHBOARD_SUPPORT) 158 virtual void addDashboardRegions(Vector<DashboardRegionValue>&); 159 #endif 160 161 virtual void updateBoxModelInfoFromStyle(); 162 163 static RenderInline* cloneInline(RenderInline* src); 164 165 void paintOutlineForLine(GraphicsContext*, int tx, int ty, const IntRect& prevLine, const IntRect& thisLine, const IntRect& nextLine); 166 RenderBoxModelObject* continuationBefore(RenderObject* beforeChild); 167 168 RenderObjectChildList m_children; 169 RenderLineBoxList m_lineBoxes; // All of the line boxes created for this inline flow. For example, <i>Hello<br>world.</i> will have two <i> line boxes. 170 171 mutable int m_lineHeight : 31; 172 bool m_alwaysCreateLineBoxes : 1; 173 }; 174 175 inline RenderInline* toRenderInline(RenderObject* object) 176 { 177 ASSERT(!object || object->isRenderInline()); 178 return static_cast<RenderInline*>(object); 179 } 180 181 inline const RenderInline* toRenderInline(const RenderObject* object) 182 { 183 ASSERT(!object || object->isRenderInline()); 184 return static_cast<const RenderInline*>(object); 185 } 186 187 // This will catch anyone doing an unnecessary cast. 188 void toRenderInline(const RenderInline*); 189 190 } // namespace WebCore 191 192 #endif // RenderInline_h 193
