author | Kiiskinen Klaus (Nokia-D-MSW/Tampere) <klaus.kiiskinen@nokia.com> |
Mon, 30 Mar 2009 12:54:55 +0300 | |
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permissions | -rw-r--r-- |
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/* |
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* Copyright (C) 2003, 2004, 2005, 2006, 2007 Apple Inc. All rights reserved. |
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* |
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* This library is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Library General Public |
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* License as published by the Free Software Foundation; either |
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* version 2 of the License, or (at your option) any later version. |
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* |
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* This library is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Library General Public License for more details. |
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* |
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* You should have received a copy of the GNU Library General Public License |
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* along with this library; see the file COPYING.LIB. If not, write to |
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* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
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* Boston, MA 02110-1301, USA. |
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* |
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*/ |
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#ifndef InlineFlowBox_h |
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#define InlineFlowBox_h |
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#include "InlineRunBox.h" |
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namespace WebCore { |
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class HitTestResult; |
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struct HitTestRequest; |
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class InlineFlowBox : public InlineRunBox { |
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public: |
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InlineFlowBox(RenderObject* obj) |
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: InlineRunBox(obj) |
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, m_firstChild(0) |
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, m_lastChild(0) |
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, m_maxHorizontalVisualOverflow(0) |
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#ifndef NDEBUG |
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, m_hasBadChildList(false) |
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#endif |
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{ |
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m_hasTextChildren = false; |
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} |
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#ifndef NDEBUG |
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virtual ~InlineFlowBox(); |
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#endif |
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RenderFlow* flowObject(); |
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virtual bool isInlineFlowBox() { return true; } |
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InlineFlowBox* prevFlowBox() const { return static_cast<InlineFlowBox*>(m_prevLine); } |
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InlineFlowBox* nextFlowBox() const { return static_cast<InlineFlowBox*>(m_nextLine); } |
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InlineBox* firstChild() { checkConsistency(); return m_firstChild; } |
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InlineBox* lastChild() { checkConsistency(); return m_lastChild; } |
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virtual InlineBox* firstLeafChild(); |
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virtual InlineBox* lastLeafChild(); |
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InlineBox* firstLeafChildAfterBox(InlineBox* start = 0); |
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InlineBox* lastLeafChildBeforeBox(InlineBox* start = 0); |
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virtual void setConstructed() |
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{ |
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InlineBox::setConstructed(); |
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if (firstChild()) |
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firstChild()->setConstructed(); |
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} |
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void addToLine(InlineBox* child); |
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virtual void deleteLine(RenderArena*); |
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virtual void extractLine(); |
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virtual void attachLine(); |
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virtual void adjustPosition(int dx, int dy); |
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virtual void clearTruncation(); |
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virtual void paintBoxDecorations(RenderObject::PaintInfo&, int tx, int ty); |
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void paintBackgrounds(GraphicsContext*, const Color&, const BackgroundLayer*, |
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int my, int mh, int tx, int ty, int w, int h); |
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void paintBackground(GraphicsContext*, const Color&, const BackgroundLayer*, |
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int my, int mh, int tx, int ty, int w, int h); |
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void paintBoxShadow(GraphicsContext*, RenderStyle*, int tx, int ty, int w, int h); |
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virtual void paintTextDecorations(RenderObject::PaintInfo&, int tx, int ty, bool paintedChildren = false); |
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virtual void paint(RenderObject::PaintInfo&, int tx, int ty); |
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virtual bool nodeAtPoint(const HitTestRequest&, HitTestResult&, int x, int y, int tx, int ty); |
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int marginBorderPaddingLeft(); |
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int marginBorderPaddingRight(); |
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int marginLeft(); |
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int marginRight(); |
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int borderLeft() { if (includeLeftEdge()) return object()->borderLeft(); return 0; } |
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int borderRight() { if (includeRightEdge()) return object()->borderRight(); return 0; } |
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int paddingLeft() { if (includeLeftEdge()) return object()->paddingLeft(); return 0; } |
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int paddingRight() { if (includeRightEdge()) return object()->paddingRight(); return 0; } |
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bool includeLeftEdge() { return m_includeLeftEdge; } |
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bool includeRightEdge() { return m_includeRightEdge; } |
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void setEdges(bool includeLeft, bool includeRight) |
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{ |
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m_includeLeftEdge = includeLeft; |
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m_includeRightEdge = includeRight; |
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} |
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// Helper functions used during line construction and placement. |
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void determineSpacingForFlowBoxes(bool lastLine, RenderObject* endObject); |
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int getFlowSpacingWidth(); |
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bool onEndChain(RenderObject* endObject); |
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virtual int placeBoxesHorizontally(int x, int& leftPosition, int& rightPosition, bool& needsWordSpacing); |
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virtual void verticallyAlignBoxes(int& heightOfBlock); |
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void computeLogicalBoxHeights(int& maxPositionTop, int& maxPositionBottom, |
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int& maxAscent, int& maxDescent, bool strictMode); |
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void adjustMaxAscentAndDescent(int& maxAscent, int& maxDescent, |
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int maxPositionTop, int maxPositionBottom); |
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void placeBoxesVertically(int y, int maxHeight, int maxAscent, bool strictMode, |
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int& topPosition, int& bottomPosition, int& selectionTop, int& selectionBottom); |
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void shrinkBoxesWithNoTextChildren(int topPosition, int bottomPosition); |
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virtual void setVerticalOverflowPositions(int top, int bottom) { } |
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virtual void setVerticalSelectionPositions(int top, int bottom) { } |
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int maxHorizontalVisualOverflow() const { return m_maxHorizontalVisualOverflow; } |
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void removeChild(InlineBox* child); |
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virtual RenderObject::SelectionState selectionState(); |
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virtual bool canAccommodateEllipsis(bool ltr, int blockEdge, int ellipsisWidth); |
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virtual int placeEllipsisBox(bool ltr, int blockEdge, int ellipsisWidth, bool&); |
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void checkConsistency() const; |
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void setHasBadChildList(); |
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private: |
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InlineBox* m_firstChild; |
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InlineBox* m_lastChild; |
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int m_maxHorizontalVisualOverflow; |
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#ifndef NDEBUG |
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bool m_hasBadChildList; |
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#endif |
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}; |
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#ifdef NDEBUG |
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inline void InlineFlowBox::checkConsistency() const |
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{ |
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} |
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#endif |
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inline void InlineFlowBox::setHasBadChildList() |
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{ |
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#ifndef NDEBUG |
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m_hasBadChildList = true; |
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#endif |
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} |
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} // namespace WebCore |
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#ifndef NDEBUG |
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// Outside the WebCore namespace for ease of invocation from gdb. |
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void showTree(const WebCore::InlineBox*); |
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#endif |
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#endif // InlineFlowBox_h |