#ifndef FontData_h
#define FontData_h
#include "FontPlatformData.h"
#include "GlyphPageTreeNode.h"
#include "GlyphWidthMap.h"
#include <wtf/Noncopyable.h>
#include <wtf/unicode/Unicode.h>
#if PLATFORM(MAC)
typedef struct OpaqueATSUStyle* ATSUStyle;
#endif
#if PLATFORM(WIN)
#include <usp10.h>
#endif
namespace WebCore {
class FontDescription;
class FontPlatformData;
class WidthMap;
enum Pitch { UnknownPitch, FixedPitch, VariablePitch };
class FontData : Noncopyable {
public:
FontData(const FontPlatformData&);
~FontData();
public:
const FontPlatformData& platformData() const { return m_font; }
FontData* smallCapsFontData(const FontDescription& fontDescription) const;
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 xHeight() const { return m_xHeight; }
float widthForGlyph(Glyph) const;
float platformWidthForGlyph(Glyph) const;
bool containsCharacters(const UChar* characters, int length) const;
void determinePitch();
Pitch pitch() const { return m_treatAsFixedPitch ? FixedPitch : VariablePitch; }
const GlyphData& missingGlyphData() const { return m_missingGlyphData; }
#if PLATFORM(MAC)
NSFont* getNSFont() const { return m_font.font(); }
void checkShapesArabic() const;
bool shapesArabic() const
{
if (!m_checkedShapesArabic)
checkShapesArabic();
return m_shapesArabic;
}
#endif
#if PLATFORM(WIN)
bool isSystemFont() const { return m_isSystemFont; }
SCRIPT_FONTPROPERTIES* scriptFontProperties() const;
SCRIPT_CACHE* scriptCache() const { return &m_scriptCache; }
#endif
#if PLATFORM(GTK)
void setFont(cairo_t*) const;
#endif
private:
void platformInit();
void platformDestroy();
public:
int m_ascent;
int m_descent;
int m_lineSpacing;
int m_lineGap;
float m_xHeight;
FontPlatformData m_font;
mutable GlyphWidthMap m_glyphToWidthMap;
bool m_treatAsFixedPitch;
Glyph m_spaceGlyph;
float m_spaceWidth;
float m_adjustedSpaceWidth;
GlyphData m_missingGlyphData;
mutable FontData* m_smallCapsFontData;
#if PLATFORM(CG)
float m_syntheticBoldOffset;
#endif
#if PLATFORM(MAC)
void* m_styleGroup;
mutable ATSUStyle m_ATSUStyle;
mutable bool m_ATSUStyleInitialized;
mutable bool m_ATSUMirrors;
mutable bool m_checkedShapesArabic;
mutable bool m_shapesArabic;
#endif
#if PLATFORM(WIN)
bool m_isSystemFont;
mutable SCRIPT_CACHE m_scriptCache;
mutable SCRIPT_FONTPROPERTIES* m_scriptFontProperties;
#endif
};
}
#endif // FontData_h