| /* |
| * This file is part of the internal font implementation. |
| * |
| * Copyright (C) 2006, 2008 Apple Inc. All rights reserved. |
| * Copyright (C) 2007-2008 Torch Mobile, Inc. |
| * |
| * 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 SimpleFontData_h |
| #define SimpleFontData_h |
| |
| #include "FontData.h" |
| #include "FontPlatformData.h" |
| #include "GlyphMetricsMap.h" |
| #include "GlyphPageTreeNode.h" |
| #include "TypesettingFeatures.h" |
| #include <wtf/OwnPtr.h> |
| |
| #if USE(ATSUI) |
| typedef struct OpaqueATSUStyle* ATSUStyle; |
| #endif |
| |
| #if (PLATFORM(WIN) && !OS(WINCE)) \ |
| || (OS(WINDOWS) && PLATFORM(WX)) |
| #include <usp10.h> |
| #endif |
| |
| #if PLATFORM(CAIRO) |
| #include <cairo.h> |
| #endif |
| |
| #if PLATFORM(QT) |
| #include <QFont> |
| #endif |
| |
| #if PLATFORM(HAIKU) |
| #include <Font.h> |
| #endif |
| |
| namespace WebCore { |
| |
| class FontDescription; |
| class FontPlatformData; |
| class SharedBuffer; |
| class SVGFontData; |
| |
| enum Pitch { UnknownPitch, FixedPitch, VariablePitch }; |
| enum GlyphMetricsMode { GlyphBoundingBox, GlyphWidthOnly }; |
| |
| class SimpleFontData : public FontData { |
| public: |
| SimpleFontData(const FontPlatformData&, bool customFont = false, bool loading = false, SVGFontData* data = 0); |
| virtual ~SimpleFontData(); |
| |
| public: |
| const FontPlatformData& platformData() const { return m_platformData; } |
| SimpleFontData* smallCapsFontData(const FontDescription& fontDescription) const; |
| |
| // vertical metrics |
| int ascent() const { return m_ascent; } |
| int descent() const { return m_descent; } |
| int lineSpacing() const { return m_lineSpacing; } |
| int lineGap() const { return m_lineGap; } |
| float maxCharWidth() const { return m_maxCharWidth; } |
| float avgCharWidth() const { return m_avgCharWidth; } |
| float xHeight() const { return m_xHeight; } |
| unsigned unitsPerEm() const { return m_unitsPerEm; } |
| |
| float widthForGlyph(Glyph glyph) const { return metricsForGlyph(glyph, GlyphWidthOnly).horizontalAdvance; } |
| GlyphMetrics metricsForGlyph(Glyph, GlyphMetricsMode = GlyphBoundingBox) const; |
| GlyphMetrics platformMetricsForGlyph(Glyph, GlyphMetricsMode) const; |
| |
| float spaceWidth() const { return m_spaceWidth; } |
| float adjustedSpaceWidth() const { return m_adjustedSpaceWidth; } |
| |
| #if PLATFORM(CG) || PLATFORM(CAIRO) || (OS(WINDOWS) && PLATFORM(WX)) |
| float syntheticBoldOffset() const { return m_syntheticBoldOffset; } |
| #endif |
| |
| Glyph spaceGlyph() const { return m_spaceGlyph; } |
| |
| virtual const SimpleFontData* fontDataForCharacter(UChar32) const; |
| virtual bool containsCharacters(const UChar*, int length) const; |
| |
| void determinePitch(); |
| Pitch pitch() const { return m_treatAsFixedPitch ? FixedPitch : VariablePitch; } |
| |
| #if ENABLE(SVG_FONTS) |
| SVGFontData* svgFontData() const { return m_svgFontData.get(); } |
| bool isSVGFont() const { return m_svgFontData; } |
| #else |
| bool isSVGFont() const { return false; } |
| #endif |
| |
| virtual bool isCustomFont() const { return m_isCustomFont; } |
| virtual bool isLoading() const { return m_isLoading; } |
| virtual bool isSegmented() const; |
| |
| const GlyphData& missingGlyphData() const { return m_missingGlyphData; } |
| |
| #ifndef NDEBUG |
| virtual String description() const; |
| #endif |
| |
| #if PLATFORM(MAC) || (PLATFORM(CHROMIUM) && OS(DARWIN)) |
| NSFont* getNSFont() const { return m_platformData.font(); } |
| #endif |
| |
| #if USE(CORE_TEXT) |
| CTFontRef getCTFont() const; |
| CFDictionaryRef getCFStringAttributes(TypesettingFeatures) const; |
| #endif |
| |
| #if USE(ATSUI) |
| void checkShapesArabic() const; |
| bool shapesArabic() const |
| { |
| if (!m_checkedShapesArabic) |
| checkShapesArabic(); |
| return m_shapesArabic; |
| } |
| #endif |
| |
| #if PLATFORM(QT) |
| QFont getQtFont() const { return m_platformData.font(); } |
| #endif |
| |
| #if PLATFORM(WIN) || (OS(WINDOWS) && PLATFORM(WX)) |
| bool isSystemFont() const { return m_isSystemFont; } |
| #if !OS(WINCE) // disable unused members to save space |
| SCRIPT_FONTPROPERTIES* scriptFontProperties() const; |
| SCRIPT_CACHE* scriptCache() const { return &m_scriptCache; } |
| #endif |
| static void setShouldApplyMacAscentHack(bool); |
| static bool shouldApplyMacAscentHack(); |
| #endif |
| |
| #if PLATFORM(WX) |
| wxFont* getWxFont() const { return m_platformData.font(); } |
| #endif |
| |
| private: |
| void platformInit(); |
| void platformGlyphInit(); |
| void platformCharWidthInit(); |
| void platformDestroy(); |
| |
| void initCharWidths(); |
| |
| void commonInit(); |
| |
| #if (PLATFORM(WIN) && !OS(WINCE)) \ |
| || (OS(WINDOWS) && PLATFORM(WX)) |
| void initGDIFont(); |
| void platformCommonDestroy(); |
| GlyphMetrics metricsForGDIGlyph(Glyph glyph) const; |
| #endif |
| |
| int m_ascent; |
| int m_descent; |
| int m_lineSpacing; |
| int m_lineGap; |
| float m_maxCharWidth; |
| float m_avgCharWidth; |
| float m_xHeight; |
| unsigned m_unitsPerEm; |
| |
| FontPlatformData m_platformData; |
| |
| mutable GlyphMetricsMap m_glyphToMetricsMap; |
| |
| bool m_treatAsFixedPitch; |
| |
| #if ENABLE(SVG_FONTS) |
| OwnPtr<SVGFontData> m_svgFontData; |
| #endif |
| |
| bool m_isCustomFont; // Whether or not we are custom font loaded via @font-face |
| bool m_isLoading; // Whether or not this custom font is still in the act of loading. |
| |
| Glyph m_spaceGlyph; |
| float m_spaceWidth; |
| float m_adjustedSpaceWidth; |
| |
| GlyphData m_missingGlyphData; |
| |
| mutable SimpleFontData* m_smallCapsFontData; |
| |
| #if PLATFORM(CG) || PLATFORM(CAIRO) || (OS(WINDOWS) && PLATFORM(WX)) |
| float m_syntheticBoldOffset; |
| #endif |
| |
| #ifdef BUILDING_ON_TIGER |
| public: |
| void* m_styleGroup; |
| |
| private: |
| #endif |
| |
| #if USE(ATSUI) |
| public: |
| mutable HashMap<unsigned, ATSUStyle> m_ATSUStyleMap; |
| mutable bool m_ATSUMirrors; |
| mutable bool m_checkedShapesArabic; |
| mutable bool m_shapesArabic; |
| |
| private: |
| #endif |
| |
| #if USE(CORE_TEXT) |
| mutable RetainPtr<CTFontRef> m_CTFont; |
| mutable HashMap<unsigned, RetainPtr<CFDictionaryRef> > m_CFStringAttributes; |
| #endif |
| |
| #if PLATFORM(WIN) || (OS(WINDOWS) && PLATFORM(WX)) |
| bool m_isSystemFont; |
| #if !OS(WINCE) // disable unused members to save space |
| mutable SCRIPT_CACHE m_scriptCache; |
| mutable SCRIPT_FONTPROPERTIES* m_scriptFontProperties; |
| #endif |
| #endif |
| }; |
| |
| |
| #if !PLATFORM(QT) |
| ALWAYS_INLINE GlyphMetrics SimpleFontData::metricsForGlyph(Glyph glyph, GlyphMetricsMode metricsMode) const |
| { |
| GlyphMetrics metrics = m_glyphToMetricsMap.metricsForGlyph(glyph); |
| if ((metricsMode == GlyphWidthOnly && metrics.horizontalAdvance != cGlyphSizeUnknown) || (metricsMode == GlyphBoundingBox && metrics.boundingBox.width() != cGlyphSizeUnknown)) |
| return metrics; |
| |
| metrics = platformMetricsForGlyph(glyph, metricsMode); |
| m_glyphToMetricsMap.setMetricsForGlyph(glyph, metrics); |
| |
| return metrics; |
| } |
| #endif |
| |
| } // namespace WebCore |
| |
| #endif // SimpleFontData_h |