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/*
* 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 "RootInlineBox.h"
#include "SVGCharacterLayoutInfo.h"
namespace WebCore {
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)
, m_height(0)
{
}
virtual bool isSVGRootInlineBox() { return true; }
virtual int virtualHeight() const { return m_height; }
void setHeight(int h) { m_height = h; }
virtual void paint(RenderObject::PaintInfo&, int tx, int ty);
virtual int placeBoxesHorizontally(int x, int& leftPosition, int& rightPosition, bool& needsWordSpacing);
virtual int verticallyAlignBoxes(int heightOfBlock);
virtual void computePerCharacterLayoutInformation();
// Used by SVGInlineTextBox
const Vector<SVGTextChunk>& svgTextChunks() const;
void walkTextChunks(SVGTextChunkWalkerBase*, const SVGInlineTextBox* textBox = 0);
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:
int m_height;
Vector<SVGChar> m_svgChars;
Vector<SVGTextChunk> m_svgTextChunks;
};
// Shared with SVGRenderTreeAsText / SVGInlineTextBox
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