1/* 2 * Copyright (C) 1999 Lars Knoll (knoll@kde.org) 3 * (C) 1999 Antti Koivisto (koivisto@kde.org) 4 * Copyright (C) 2003, 2004, 2005, 2006, 2007, 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 RenderListItem_h 24#define RenderListItem_h 25 26#include "RenderBlock.h" 27 28namespace WebCore { 29 30class RenderListMarker; 31 32class RenderListItem : public RenderBlock { 33public: 34 explicit RenderListItem(Node*); 35 36 int value() const { if (!m_isValueUpToDate) updateValueNow(); return m_value; } 37 void updateValue(); 38 39 bool hasExplicitValue() const { return m_hasExplicitValue; } 40 int explicitValue() const { return m_explicitValue; } 41 void setExplicitValue(int value); 42 void clearExplicitValue(); 43 44 void setNotInList(bool notInList) { m_notInList = notInList; } 45 bool notInList() const { return m_notInList; } 46 47 const String& markerText() const; 48 String markerTextWithSuffix() const; 49 50 void updateListMarkerNumbers(); 51 52private: 53 virtual const char* renderName() const { return "RenderListItem"; } 54 55 virtual bool isListItem() const { return true; } 56 57 virtual void destroy(); 58 59 virtual bool isEmpty() const; 60 virtual void paint(PaintInfo&, int tx, int ty); 61 62 virtual void layout(); 63 virtual void computePreferredLogicalWidths(); 64 65 void positionListMarker(); 66 67 virtual void styleDidChange(StyleDifference, const RenderStyle* oldStyle); 68 69 virtual bool requiresForcedStyleRecalcPropagation() const { return true; } 70 71 virtual void addOverflowFromChildren(); 72 73 void updateMarkerLocation(); 74 inline int calcValue() const; 75 void updateValueNow() const; 76 void explicitValueChanged(); 77 78 RenderListMarker* m_marker; 79 int m_explicitValue; 80 mutable int m_value; 81 82 bool m_hasExplicitValue : 1; 83 mutable bool m_isValueUpToDate : 1; 84 bool m_notInList : 1; 85}; 86 87inline RenderListItem* toRenderListItem(RenderObject* object) 88{ 89 ASSERT(!object || object->isListItem()); 90 return static_cast<RenderListItem*>(object); 91} 92 93// This will catch anyone doing an unnecessary cast. 94void toRenderListItem(const RenderListItem*); 95 96} // namespace WebCore 97 98#endif // RenderListItem_h 99