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