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      1 /*
      2  * Copyright (C) 2006 Oliver Hunt <ojh16 (at) student.canterbury.ac.nz>
      3  * Copyright (C) 2006 Apple Computer Inc.
      4  * Copyright (C) 2007 Nikolas Zimmermann <zimmermann (at) kde.org>
      5  * Copyright (C) Research In Motion Limited 2010. All rights reserved.
      6  *
      7  * This library is free software; you can redistribute it and/or
      8  * modify it under the terms of the GNU Library General Public
      9  * License as published by the Free Software Foundation; either
     10  * version 2 of the License, or (at your option) any later version.
     11  *
     12  * This library is distributed in the hope that it will be useful,
     13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
     14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     15  * Library General Public License for more details.
     16  *
     17  * You should have received a copy of the GNU Library General Public License
     18  * along with this library; see the file COPYING.LIB.  If not, write to
     19  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
     20  * Boston, MA 02110-1301, USA.
     21  */
     22 
     23 #ifndef SVGRootInlineBox_h
     24 #define SVGRootInlineBox_h
     25 
     26 #include "core/rendering/RootInlineBox.h"
     27 #include "core/rendering/svg/SVGRenderSupport.h"
     28 #include "core/rendering/svg/SVGTextLayoutEngine.h"
     29 
     30 namespace WebCore {
     31 
     32 class SVGInlineTextBox;
     33 
     34 class SVGRootInlineBox FINAL : public RootInlineBox {
     35 public:
     36     SVGRootInlineBox(RenderBlock* block)
     37         : RootInlineBox(block)
     38         , m_logicalHeight(0)
     39     {
     40     }
     41 
     42     virtual bool isSVGRootInlineBox() const OVERRIDE FINAL { return true; }
     43 
     44     virtual float virtualLogicalHeight() const OVERRIDE FINAL { return m_logicalHeight; }
     45     void setLogicalHeight(float height) { m_logicalHeight = height; }
     46 
     47     virtual void paint(PaintInfo&, const LayoutPoint&, LayoutUnit lineTop, LayoutUnit lineBottom) OVERRIDE FINAL;
     48 
     49     virtual void markDirty(bool dirty = true) OVERRIDE FINAL;
     50 
     51     void computePerCharacterLayoutInformation();
     52 
     53     InlineBox* closestLeafChildForPosition(const LayoutPoint&);
     54 
     55 private:
     56     void reorderValueLists(Vector<SVGTextLayoutAttributes*>&);
     57     void layoutCharactersInTextBoxes(InlineFlowBox*, SVGTextLayoutEngine&);
     58     void layoutChildBoxes(InlineFlowBox*, FloatRect* = 0);
     59     void layoutRootBox(const FloatRect&);
     60 
     61 private:
     62     float m_logicalHeight;
     63 };
     64 
     65 } // namespace WebCore
     66 
     67 #endif // SVGRootInlineBox_h
     68