--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/webengine/osswebengine/WebCore/rendering/InlineFlowBox.h Mon Mar 30 12:54:55 2009 +0300
@@ -0,0 +1,165 @@
+/*
+ * Copyright (C) 2003, 2004, 2005, 2006, 2007 Apple Inc. All rights reserved.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public License
+ * along with this library; see the file COPYING.LIB. If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ *
+ */
+
+#ifndef InlineFlowBox_h
+#define InlineFlowBox_h
+
+#include "InlineRunBox.h"
+
+namespace WebCore {
+
+class HitTestResult;
+
+struct HitTestRequest;
+
+class InlineFlowBox : public InlineRunBox {
+public:
+ InlineFlowBox(RenderObject* obj)
+ : InlineRunBox(obj)
+ , m_firstChild(0)
+ , m_lastChild(0)
+ , m_maxHorizontalVisualOverflow(0)
+#ifndef NDEBUG
+ , m_hasBadChildList(false)
+#endif
+ {
+ m_hasTextChildren = false;
+ }
+
+#ifndef NDEBUG
+ virtual ~InlineFlowBox();
+#endif
+
+ RenderFlow* flowObject();
+
+ virtual bool isInlineFlowBox() { return true; }
+
+ InlineFlowBox* prevFlowBox() const { return static_cast<InlineFlowBox*>(m_prevLine); }
+ InlineFlowBox* nextFlowBox() const { return static_cast<InlineFlowBox*>(m_nextLine); }
+
+ InlineBox* firstChild() { checkConsistency(); return m_firstChild; }
+ InlineBox* lastChild() { checkConsistency(); return m_lastChild; }
+
+ virtual InlineBox* firstLeafChild();
+ virtual InlineBox* lastLeafChild();
+ InlineBox* firstLeafChildAfterBox(InlineBox* start = 0);
+ InlineBox* lastLeafChildBeforeBox(InlineBox* start = 0);
+
+ virtual void setConstructed()
+ {
+ InlineBox::setConstructed();
+ if (firstChild())
+ firstChild()->setConstructed();
+ }
+
+ void addToLine(InlineBox* child);
+ virtual void deleteLine(RenderArena*);
+ virtual void extractLine();
+ virtual void attachLine();
+ virtual void adjustPosition(int dx, int dy);
+
+ virtual void clearTruncation();
+
+ virtual void paintBoxDecorations(RenderObject::PaintInfo&, int tx, int ty);
+ void paintBackgrounds(GraphicsContext*, const Color&, const BackgroundLayer*,
+ int my, int mh, int tx, int ty, int w, int h);
+ void paintBackground(GraphicsContext*, const Color&, const BackgroundLayer*,
+ int my, int mh, int tx, int ty, int w, int h);
+ void paintBoxShadow(GraphicsContext*, RenderStyle*, int tx, int ty, int w, int h);
+ virtual void paintTextDecorations(RenderObject::PaintInfo&, int tx, int ty, bool paintedChildren = false);
+ virtual void paint(RenderObject::PaintInfo&, int tx, int ty);
+ virtual bool nodeAtPoint(const HitTestRequest&, HitTestResult&, int x, int y, int tx, int ty);
+
+ int marginBorderPaddingLeft();
+ int marginBorderPaddingRight();
+ int marginLeft();
+ int marginRight();
+ int borderLeft() { if (includeLeftEdge()) return object()->borderLeft(); return 0; }
+ int borderRight() { if (includeRightEdge()) return object()->borderRight(); return 0; }
+ int paddingLeft() { if (includeLeftEdge()) return object()->paddingLeft(); return 0; }
+ int paddingRight() { if (includeRightEdge()) return object()->paddingRight(); return 0; }
+
+ bool includeLeftEdge() { return m_includeLeftEdge; }
+ bool includeRightEdge() { return m_includeRightEdge; }
+ void setEdges(bool includeLeft, bool includeRight)
+ {
+ m_includeLeftEdge = includeLeft;
+ m_includeRightEdge = includeRight;
+ }
+
+ // Helper functions used during line construction and placement.
+ void determineSpacingForFlowBoxes(bool lastLine, RenderObject* endObject);
+ int getFlowSpacingWidth();
+ bool onEndChain(RenderObject* endObject);
+ virtual int placeBoxesHorizontally(int x, int& leftPosition, int& rightPosition, bool& needsWordSpacing);
+ virtual void verticallyAlignBoxes(int& heightOfBlock);
+ void computeLogicalBoxHeights(int& maxPositionTop, int& maxPositionBottom,
+ int& maxAscent, int& maxDescent, bool strictMode);
+ void adjustMaxAscentAndDescent(int& maxAscent, int& maxDescent,
+ int maxPositionTop, int maxPositionBottom);
+ void placeBoxesVertically(int y, int maxHeight, int maxAscent, bool strictMode,
+ int& topPosition, int& bottomPosition, int& selectionTop, int& selectionBottom);
+ void shrinkBoxesWithNoTextChildren(int topPosition, int bottomPosition);
+
+ virtual void setVerticalOverflowPositions(int top, int bottom) { }
+ virtual void setVerticalSelectionPositions(int top, int bottom) { }
+ int maxHorizontalVisualOverflow() const { return m_maxHorizontalVisualOverflow; }
+
+ void removeChild(InlineBox* child);
+
+ virtual RenderObject::SelectionState selectionState();
+
+ virtual bool canAccommodateEllipsis(bool ltr, int blockEdge, int ellipsisWidth);
+ virtual int placeEllipsisBox(bool ltr, int blockEdge, int ellipsisWidth, bool&);
+
+ void checkConsistency() const;
+ void setHasBadChildList();
+
+private:
+ InlineBox* m_firstChild;
+ InlineBox* m_lastChild;
+ int m_maxHorizontalVisualOverflow;
+
+#ifndef NDEBUG
+ bool m_hasBadChildList;
+#endif
+};
+
+#ifdef NDEBUG
+inline void InlineFlowBox::checkConsistency() const
+{
+}
+#endif
+
+inline void InlineFlowBox::setHasBadChildList()
+{
+#ifndef NDEBUG
+ m_hasBadChildList = true;
+#endif
+}
+
+} // namespace WebCore
+
+#ifndef NDEBUG
+// Outside the WebCore namespace for ease of invocation from gdb.
+void showTree(const WebCore::InlineBox*);
+#endif
+
+#endif // InlineFlowBox_h