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/*
* Copyright (C) Research In Motion Limited 2010. 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 SVGTextLayoutBuilder_h
#define SVGTextLayoutBuilder_h
#if ENABLE(SVG)
#include "SVGTextLayoutAttributes.h"
#include <wtf/Vector.h>
namespace WebCore {
class RenderObject;
class RenderSVGInlineText;
class RenderSVGText;
class SVGTextLayoutBuilder : public Noncopyable {
public:
SVGTextLayoutBuilder();
void buildLayoutAttributesForTextSubtree(RenderSVGText*);
private:
struct LayoutScope {
LayoutScope()
: isVerticalWritingMode(false)
, textContentStart(0)
, textContentLength(0)
{
}
bool isVerticalWritingMode;
unsigned textContentStart;
unsigned textContentLength;
SVGTextLayoutAttributes attributes;
};
void buildLayoutScopes(RenderObject*, unsigned& atCharacter);
void buildLayoutScope(LayoutScope&, RenderObject*, unsigned textContentStart, unsigned textContentLength);
void buildLayoutAttributesFromScopes();
void propagateLayoutAttributes(RenderObject*, unsigned& atCharacter);
void measureCharacters(RenderSVGInlineText*, SVGTextLayoutAttributes&);
private:
Vector<LayoutScope> m_scopes;
SVGTextLayoutAttributes m_attributes;
};
} // namespace WebCore
#endif // ENABLE(SVG)
#endif
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