/*
* 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 SVGTextLayoutEngineSpacing_h
#define SVGTextLayoutEngineSpacing_h
#include "core/rendering/svg/SVGTextMetrics.h"
namespace WebCore {
class Font;
class SVGRenderStyle;
class SVGElement;
// Helper class used by SVGTextLayoutEngine to handle 'kerning' / 'letter-spacing' and 'word-spacing'.
class SVGTextLayoutEngineSpacing {
WTF_MAKE_NONCOPYABLE(SVGTextLayoutEngineSpacing);
public:
SVGTextLayoutEngineSpacing(const Font&);
float calculateSVGKerning(bool isVerticalText, Glyph currentGlyph);
float calculateCSSKerningAndSpacing(const SVGRenderStyle*, SVGElement* lengthContext, UChar currentCharacter);
private:
const Font& m_font;
UChar m_lastCharacter;
#if ENABLE(SVG_FONTS)
Glyph m_lastGlyph;
#endif
};
} // namespace WebCore
#endif