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* Copyright (C) 2008 Nikolas Zimmermann <zimmermann@kde.org>
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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* You should have received a copy of the GNU Library General Public License
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* along with this library; see the file COPYING.LIB. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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#include "SimpleFontData.h"
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#include "SVGFontFaceElement.h"
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class SVGFontData : public SimpleFontData::AdditionalFontData {
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static PassOwnPtr<SVGFontData> create(SVGFontFaceElement* element)
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return adoptPtr(new SVGFontData(element));
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virtual ~SVGFontData() { }
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virtual void initializeFontData(SimpleFontData*, float fontSize);
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virtual float widthForSVGGlyph(Glyph, float fontSize) const;
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virtual bool fillSVGGlyphPage(GlyphPage*, unsigned offset, unsigned length, UChar* buffer, unsigned bufferLength, const SimpleFontData*) const;
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virtual bool applySVGGlyphSelection(WidthIterator&, GlyphData&, bool mirror, int currentCharacter, unsigned& advanceLength) const;
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SVGFontFaceElement* svgFontFaceElement() const { return m_svgFontFaceElement; }
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float horizontalOriginX() const { return m_horizontalOriginX; }
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float horizontalOriginY() const { return m_horizontalOriginY; }
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float horizontalAdvanceX() const { return m_horizontalAdvanceX; }
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float verticalOriginX() const { return m_verticalOriginX; }
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float verticalOriginY() const { return m_verticalOriginY; }
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float verticalAdvanceY() const { return m_verticalAdvanceY; }
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SVGFontData(SVGFontFaceElement*);
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bool fillBMPGlyphs(SVGFontElement*, GlyphPage* , unsigned offset, unsigned length, UChar* buffer, const SimpleFontData*) const;
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bool fillNonBMPGlyphs(SVGFontElement*, GlyphPage* , unsigned offset, unsigned length, UChar* buffer, const SimpleFontData*) const;
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String createStringWithMirroredCharacters(const UChar* characters, unsigned length) const;
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// Ths SVGFontFaceElement is kept alive --
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// 1) in the external font case: by the CSSFontFaceSource, which holds a reference to the external SVG document
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// containing the element;
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// 2) in the in-document font case: by virtue of being in the document tree and making sure that when it is removed
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// from the document, it removes the @font-face rule it owns from the document's mapped element sheet and forces
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SVGFontFaceElement* m_svgFontFaceElement;
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float m_horizontalOriginX;
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float m_horizontalOriginY;
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float m_horizontalAdvanceX;
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float m_verticalOriginX;
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float m_verticalOriginY;
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float m_verticalAdvanceY;
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} // namespace WebCore
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#endif // SVGFontData_h