1 /* 2 * Copyright (C) 2013 Google, Inc. 3 * 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. 8 * 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. 13 * 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. 18 * 19 */ 20 21 #ifndef CustomFontData_h 22 #define CustomFontData_h 23 24 #include "platform/PlatformExport.h" 25 #include "platform/fonts/Glyph.h" 26 #include "wtf/PassRefPtr.h" 27 #include "wtf/RefCounted.h" 28 #include <unicode/uchar.h> 29 30 namespace WebCore { 31 32 struct GlyphData; 33 class GlyphPage; 34 class SimpleFontData; 35 struct WidthIterator; 36 37 class PLATFORM_EXPORT CustomFontData : public RefCounted<CustomFontData> { 38 public: 39 static PassRefPtr<CustomFontData> create() { return adoptRef(new CustomFontData()); } 40 41 virtual ~CustomFontData() { } 42 43 virtual void beginLoadIfNeeded() const { }; 44 virtual bool isLoading() const { return false; } 45 virtual bool isLoadingFallback() const { return false; } 46 virtual bool shouldSkipDrawing() const { return false; } 47 virtual void clearFontFaceSource() { } 48 49 virtual bool isSVGFont() const { return false; } 50 virtual void initializeFontData(SimpleFontData*, float) { } 51 virtual float widthForSVGGlyph(Glyph, float) const { return 0.0f; } 52 virtual bool fillSVGGlyphPage(GlyphPage*, unsigned, unsigned, UChar*, unsigned, const SimpleFontData*) const { return false; } 53 virtual bool applySVGGlyphSelection(WidthIterator&, GlyphData&, bool, int, unsigned&) const { return false; } 54 55 protected: 56 CustomFontData() { } 57 }; 58 59 } 60 61 #endif // CustomFontData_h 62
