File indexing completed on 2024-04-28 15:24:21

 /*
  * This file is part of the WebKit project.
  *
  * Copyright (C) 2006 Oliver Hunt <ojh16@student.canterbury.ac.nz>
  *           (C) 2006 Apple Computer Inc.
  *           (C) 2007 Nikolas Zimmermann <zimmermann@kde.org>
  *
  * 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 SVGRootInlineBox_h
 #define SVGRootInlineBox_h
 
 #if ENABLE(SVG)
 #include "rendering/render_line.h" // RootInlineBox
 #include "SVGCharacterLayoutInfo.h"
 #include "rendering/render_text.h"
 
 namespace WebCore
 {
 
 using namespace khtml;
 
 //class InlineTextBox;
 class RenderSVGRoot;
 class SVGInlineTextBox;
 
 struct LastGlyphInfo {
     LastGlyphInfo() : isValid(false) { }
 
     String unicode;
     String glyphName;
     bool isValid;
 };
 
 class SVGRootInlineBox : public RootInlineBox
 {
 public:
     SVGRootInlineBox(RenderObject *obj)
         : RootInlineBox(obj)
     {
     }
 
     bool isSVGRootInlineBox() const override
     {
         return true;
     }
 
     void paint(RenderObject::PaintInfo &, int tx, int ty) override;
 
     virtual int placeBoxesHorizontally(int x, int &leftPosition, int &rightPosition, bool &needsWordSpacing);
     virtual void verticallyAlignBoxes(int &heightOfBlock);
 
     virtual void computePerCharacterLayoutInformation();
 
     // Used by SVGInlineTextBox
     const Vector<SVGTextChunk> &svgTextChunks() const;
 
     void walkTextChunks(SVGTextChunkWalkerBase *, const SVGInlineTextBox *textBox = nullptr);
 
 private:
     friend struct SVGRootInlineBoxPaintWalker;
 
     void layoutInlineBoxes();
     void layoutInlineBoxes(InlineFlowBox *start, Vector<SVGChar>::iterator &it, int &minX, int &maxX, int &minY, int &maxY);
 
     void buildLayoutInformation(InlineFlowBox *start, SVGCharacterLayoutInfo &);
     void buildLayoutInformationForTextBox(SVGCharacterLayoutInfo &, InlineTextBox *, LastGlyphInfo &);
 
     void buildTextChunks(Vector<SVGChar> &, Vector<SVGTextChunk> &, InlineFlowBox *start);
     void buildTextChunks(Vector<SVGChar> &, InlineFlowBox *start, SVGTextChunkLayoutInfo &);
     void layoutTextChunks();
 
     SVGTextDecorationInfo retrievePaintServersForTextDecoration(RenderObject *start);
 
 private:
     Vector<SVGChar> m_svgChars;
     Vector<SVGTextChunk> m_svgTextChunks;
 };
 
 // Shared with SVGRenderTreeAsText / SVGInlineTextBox
 /*khtml TextRun svgTextRunForInlineTextBox(const UChar*, int len, RenderStyle* style, const InlineTextBox* textBox, float xPos);*/
 FloatPoint topLeftPositionOfCharacterRange(Vector<SVGChar>::iterator start, Vector<SVGChar>::iterator end);
 float cummulatedWidthOfInlineBoxCharacterRange(SVGInlineBoxCharacterRange &range);
 float cummulatedHeightOfInlineBoxCharacterRange(SVGInlineBoxCharacterRange &range);
 
 RenderSVGRoot *findSVGRootObject(RenderObject *start);
 
 } // namespace WebCore
 
 #endif // ENABLE(SVG)
 
 #endif // SVGRootInlineBox_h