FontPlatformDataMac.mm [plain text]
/*
* This file is part of the internal font implementation.
*
* Copyright (C) 2006, 2007, 2008, 2009, 2010 Apple Inc. All rights reserved.
*
* 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.
*
*/
#import "config.h"
#import "FontPlatformData.h"
#import "PlatformString.h"
#import "WebCoreSystemInterface.h"
#import <AppKit/NSFont.h>
namespace WebCore {
FontPlatformData::FontPlatformData(NSFont *nsFont, bool syntheticBold, bool syntheticOblique)
: m_syntheticBold(syntheticBold)
, m_syntheticOblique(syntheticOblique)
, m_font(nsFont)
#if !defined(BUILDING_ON_TIGER) && !defined(BUILDING_ON_LEOPARD) && !defined(BUILDING_ON_SNOW_LEOPARD)
, m_isColorBitmapFont(CTFontGetSymbolicTraits(toCTFontRef(nsFont)) & kCTFontColorGlyphsTrait)
#else
, m_isColorBitmapFont(false)
#endif
{
if (nsFont)
CFRetain(nsFont);
m_size = nsFont ? [nsFont pointSize] : 0.0f;
#ifndef BUILDING_ON_TIGER
m_cgFont.adoptCF(CTFontCopyGraphicsFont(toCTFontRef(nsFont), 0));
m_atsuFontID = CTFontGetPlatformFont(toCTFontRef(nsFont), 0);
#else
m_cgFont = wkGetCGFontFromNSFont(nsFont);
m_atsuFontID = wkGetNSFontATSUFontId(nsFont);
#endif
}
FontPlatformData::FontPlatformData(const FontPlatformData& f)
{
m_font = f.m_font && f.m_font != reinterpret_cast<NSFont *>(-1) ? static_cast<const NSFont *>(CFRetain(f.m_font)) : f.m_font;
m_syntheticBold = f.m_syntheticBold;
m_syntheticOblique = f.m_syntheticOblique;
m_size = f.m_size;
m_cgFont = f.m_cgFont;
m_atsuFontID = f.m_atsuFontID;
m_isColorBitmapFont = f.m_isColorBitmapFont;
}
FontPlatformData:: ~FontPlatformData()
{
if (m_font && m_font != reinterpret_cast<NSFont *>(-1))
CFRelease(m_font);
}
const FontPlatformData& FontPlatformData::operator=(const FontPlatformData& f)
{
m_syntheticBold = f.m_syntheticBold;
m_syntheticOblique = f.m_syntheticOblique;
m_size = f.m_size;
m_cgFont = f.m_cgFont;
m_atsuFontID = f.m_atsuFontID;
if (m_font == f.m_font)
return *this;
if (f.m_font && f.m_font != reinterpret_cast<NSFont *>(-1))
CFRetain(f.m_font);
if (m_font && m_font != reinterpret_cast<NSFont *>(-1))
CFRelease(m_font);
m_font = f.m_font;
m_isColorBitmapFont = f.m_isColorBitmapFont;
return *this;
}
void FontPlatformData::setFont(NSFont *font)
{
if (m_font == font)
return;
if (font)
CFRetain(font);
if (m_font && m_font != reinterpret_cast<NSFont *>(-1))
CFRelease(m_font);
m_font = font;
m_size = font ? [font pointSize] : 0.0f;
#ifndef BUILDING_ON_TIGER
m_cgFont.adoptCF(CTFontCopyGraphicsFont(toCTFontRef(font), 0));
m_atsuFontID = CTFontGetPlatformFont(toCTFontRef(font), 0);
#else
m_cgFont = wkGetCGFontFromNSFont(font);
m_atsuFontID = wkGetNSFontATSUFontId(font);
#endif
#if !defined(BUILDING_ON_TIGER) && !defined(BUILDING_ON_LEOPARD) && !defined(BUILDING_ON_SNOW_LEOPARD)
m_isColorBitmapFont = CTFontGetSymbolicTraits(toCTFontRef(font)) & kCTFontColorGlyphsTrait;
#endif
}
bool FontPlatformData::roundsGlyphAdvances() const
{
return [m_font renderingMode] == NSFontAntialiasedIntegerAdvancementsRenderingMode;
}
bool FontPlatformData::allowsLigatures() const
{
return ![[m_font coveredCharacterSet] characterIsMember:'a'];
}
#ifndef NDEBUG
String FontPlatformData::description() const
{
RetainPtr<CFStringRef> cgFontDescription(AdoptCF, CFCopyDescription(cgFont()));
return String(cgFontDescription.get()) + " " + String::number(m_size) + (m_syntheticBold ? " synthetic bold" : "") + (m_syntheticOblique ? " syntheitic oblique" : "");
}
#endif
} // namespace WebCore