FontPlatformData.h [plain text]
#ifndef FontPlatformData_h
#define FontPlatformData_h
#include "StringImpl.h"
#ifdef __OBJC__
@class NSFont;
#else
class NSFont;
#endif
#import <GraphicsServices/GSFont.h>
typedef struct CGFont* CGFontRef;
typedef UInt32 ATSUFontID;
#ifndef BUILDING_ON_TIGER
typedef const struct __CTFont* CTFontRef;
#endif
#include <CoreFoundation/CFBase.h>
#include <objc/objc-auto.h>
#include <wtf/RetainPtr.h>
namespace WebCore {
struct FontPlatformData {
FontPlatformData(float size, bool syntheticBold, bool syntheticOblique)
: m_syntheticBold(syntheticBold)
, m_syntheticOblique(syntheticOblique)
, m_gsFont(0)
, m_isImageFont(false)
, m_size(size)
, m_font(0)
{
}
FontPlatformData(GSFontRef = 0, bool syntheticBold = false, bool syntheticOblique = false);
FontPlatformData(GSFontRef f, float s, bool b , bool o)
: m_syntheticBold(b), m_syntheticOblique(o), m_gsFont(f), m_isImageFont(false), m_size(s), m_font(0)
{
}
FontPlatformData(const FontPlatformData&);
~FontPlatformData();
FontPlatformData(WTF::HashTableDeletedValueType) : m_font(hashTableDeletedFontValue()) { }
bool isHashTableDeletedValue() const { return m_font == hashTableDeletedFontValue(); }
float size() const { return m_size; }
bool m_syntheticBold;
bool m_syntheticOblique;
GSFontRef m_gsFont;
bool m_isImageFont;
float m_size;
unsigned hash() const
{
ASSERT(m_font != 0 || m_gsFont == 0 || m_isImageFont != 0);
uintptr_t hashCodes[2] = { (uintptr_t)m_font, m_isImageFont << 2 | m_syntheticBold << 1 | m_syntheticOblique };
return StringImpl::computeHash(reinterpret_cast<UChar*>(hashCodes), sizeof(hashCodes) / sizeof(UChar));
}
const FontPlatformData& operator=(const FontPlatformData& f);
bool operator==(const FontPlatformData& other) const
{
return m_font == other.m_font && m_syntheticBold == other.m_syntheticBold && m_syntheticOblique == other.m_syntheticOblique &&
m_gsFont == other.m_gsFont && m_size == other.m_size && m_isImageFont == other.m_isImageFont;
}
GSFontRef font() const { return m_font; }
void setFont(GSFontRef font);
bool roundsGlyphAdvances() const { return false; }
#if USE(CORE_TEXT)
bool allowsLigatures() const;
#else
bool allowsLigatures() const { return false; }
#endif
private:
static GSFontRef hashTableDeletedFontValue() { return reinterpret_cast<GSFontRef>(-1); }
GSFontRef m_font;
};
}
#endif