2 * Copyright (C) 2007 Eric Seidel <eric@webkit.org>
3 * Copyright (C) 2007 Nikolas Zimmermann <zimmermann@kde.org>
4 * Copyright (C) Research In Motion Limited 2010. All rights reserved.
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Library General Public
8 * License as published by the Free Software Foundation; either
9 * version 2 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Library General Public License for more details.
16 * You should have received a copy of the GNU Library General Public License
17 * along with this library; see the file COPYING.LIB. If not, write to
18 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
19 * Boston, MA 02110-1301, USA.
22 #ifndef SVGFontElement_h
23 #define SVGFontElement_h
26 #include "SVGAnimatedBoolean.h"
27 #include "SVGExternalResourcesRequired.h"
28 #include "SVGGlyphElement.h"
29 #include "SVGGlyphMap.h"
30 #include "SVGParserUtilities.h"
31 #include "SVGStyledElement.h"
35 // Describe an SVG <hkern>/<vkern> element
36 struct SVGKerningPair {
38 UnicodeRanges unicodeRange1;
39 UnicodeRanges unicodeRange2;
40 HashSet<String> unicodeName1;
41 HashSet<String> unicodeName2;
42 HashSet<String> glyphName1;
43 HashSet<String> glyphName2;
51 typedef Vector<SVGKerningPair> KerningPairVector;
53 class SVGMissingGlyphElement;
55 class SVGFontElement : public SVGStyledElement
56 , public SVGExternalResourcesRequired {
58 static PassRefPtr<SVGFontElement> create(const QualifiedName&, Document*);
60 void invalidateGlyphCache();
61 void collectGlyphsForString(const String&, Vector<SVGGlyph>&);
62 void collectGlyphsForGlyphName(const String&, Vector<SVGGlyph>&);
64 float horizontalKerningForPairOfStringsAndGlyphs(const String& u1, const String& g1, const String& u2, const String& g2) const;
65 float verticalKerningForPairOfStringsAndGlyphs(const String& u1, const String& g1, const String& u2, const String& g2) const;
67 // Used by SimpleFontData/WidthIterator.
68 SVGGlyph svgGlyphForGlyph(Glyph);
71 SVGMissingGlyphElement* firstMissingGlyphElement() const;
74 SVGFontElement(const QualifiedName&, Document*);
76 virtual bool rendererIsNeeded(const NodeRenderingContext&) { return false; }
78 void ensureGlyphCache();
79 void registerLigaturesInGlyphCache(Vector<String>&);
81 BEGIN_DECLARE_ANIMATED_PROPERTIES(SVGFontElement)
82 DECLARE_ANIMATED_BOOLEAN(ExternalResourcesRequired, externalResourcesRequired)
83 END_DECLARE_ANIMATED_PROPERTIES
85 KerningPairVector m_horizontalKerningPairs;
86 KerningPairVector m_verticalKerningPairs;
87 SVGGlyphMap m_glyphMap;
89 bool m_isGlyphCacheValid;
92 } // namespace WebCore
94 #endif // ENABLE(SVG_FONTS)