Moving GraphicsContext and dependencies from core to platform.

Source/core/platform/graphics/cocoa/FontPlatformDataCocoa.mm

Index: Source/core/platform/graphics/cocoa/FontPlatformDataCocoa.mm
diff --git a/Source/core/platform/graphics/cocoa/FontPlatformDataCocoa.mm b/Source/core/platform/graphics/cocoa/FontPlatformDataCocoa.mm
deleted file mode 100644
index 2faaf2ba714669a78cf14925ab8ec3265da5a473..0000000000000000000000000000000000000000
--- a/Source/core/platform/graphics/cocoa/FontPlatformDataCocoa.mm
+++ /dev/null
@@ -1,321 +0,0 @@
-/*
- * This file is part of the internal font implementation.
- *
- * Copyright (C) 2006, 2007, 2008, 2009, 2010 Apple Inc. All rights reserved.
- * Copyright (c) 2010 Google 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 "core/platform/graphics/FontPlatformData.h"
-
-#import <AppKit/NSFont.h>
-#import <AvailabilityMacros.h>
-#import <wtf/text/WTFString.h>
-
-#if OS(MACOSX)
-#import "core/platform/graphics/harfbuzz/HarfBuzzFace.h"
-#endif
-
-namespace WebCore {
-
-// These CoreText Text Spacing feature selectors are not defined in CoreText.
-enum TextSpacingCTFeatureSelector { TextSpacingProportional, TextSpacingFullWidth, TextSpacingHalfWidth, TextSpacingThirdWidth, TextSpacingQuarterWidth };
-
-FontPlatformData::FontPlatformData(NSFont *nsFont, float size, bool isPrinterFont, bool syntheticBold, bool syntheticOblique, FontOrientation orientation, FontWidthVariant widthVariant)
-    : m_syntheticBold(syntheticBold)
-    , m_syntheticOblique(syntheticOblique)
-    , m_orientation(orientation)
-    , m_size(size)
-    , m_widthVariant(widthVariant)
-    , m_font(nsFont)
-    , m_isColorBitmapFont(false)
-    , m_isCompositeFontReference(false)
-    , m_isPrinterFont(isPrinterFont)
-{
-    ASSERT_ARG(nsFont, nsFont);
-
-    CGFontRef cgFont = 0;
-    loadFont(nsFont, size, m_font, cgFont);
-    
-#if __MAC_OS_X_VERSION_MIN_REQUIRED >= 1070
-    // FIXME: Chromium: The following code isn't correct for the Chromium port since the sandbox might
-    // have blocked font loading, in which case we'll only have the real loaded font file after the call to loadFont().
-    {
-        CTFontSymbolicTraits traits = CTFontGetSymbolicTraits(toCTFontRef(m_font));
-        m_isColorBitmapFont = traits & kCTFontColorGlyphsTrait;
-#if __MAC_OS_X_VERSION_MIN_REQUIRED >= 1080
-        m_isCompositeFontReference = traits & kCTFontCompositeTrait;
-#endif
-    }
-#endif
-
-    if (m_font)
-        CFRetain(m_font);
-
-    m_cgFont.adoptCF(cgFont);
-}
-
-FontPlatformData:: ~FontPlatformData()
-{
-    if (m_font && m_font != reinterpret_cast<NSFont *>(-1))
-        CFRelease(m_font);
-}
-
-void FontPlatformData::platformDataInit(const FontPlatformData& f)
-{
-    m_font = f.m_font && f.m_font != reinterpret_cast<NSFont *>(-1) ? [f.m_font retain] : f.m_font;
-
-    m_cgFont = f.m_cgFont;
-    m_CTFont = f.m_CTFont;
-
-#if OS(MACOSX)
-    m_inMemoryFont = f.m_inMemoryFont;
-    m_harfBuzzFace = f.m_harfBuzzFace;
-#endif
-}
-
-const FontPlatformData& FontPlatformData::platformDataAssign(const FontPlatformData& f)
-{
-    m_cgFont = f.m_cgFont;
-    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_CTFont = f.m_CTFont;
-#if OS(MACOSX)
-    m_inMemoryFont = f.m_inMemoryFont;
-    m_harfBuzzFace = f.m_harfBuzzFace;
-#endif
-    return *this;
-}
-
-bool FontPlatformData::platformIsEqual(const FontPlatformData& other) const
-{
-    if (m_font || other.m_font)
-        return m_font == other.m_font;
-    return m_cgFont == other.m_cgFont;
-}
-
-void FontPlatformData::setFont(NSFont *font)
-{
-    ASSERT_ARG(font, font);
-    ASSERT(m_font != reinterpret_cast<NSFont *>(-1));
-
-    if (m_font == font)
-        return;
-
-    CFRetain(font);
-    if (m_font)
-        CFRelease(m_font);
-    m_font = font;
-    m_size = [font pointSize];
-    
-    CGFontRef cgFont = 0;
-    NSFont* loadedFont = 0;
-    loadFont(m_font, m_size, loadedFont, cgFont);
-    
-#if OS(MACOSX)
-    // If loadFont replaced m_font with a fallback font, then release the
-    // previous font to counter the retain above. Then retain the new font.
-    if (loadedFont != m_font) {
-        CFRelease(m_font);
-        CFRetain(loadedFont);
-        m_font = loadedFont;
-    }
-#endif
-    
-    m_cgFont.adoptCF(cgFont);
-#if __MAC_OS_X_VERSION_MIN_REQUIRED >= 1070
-    {
-        CTFontSymbolicTraits traits = CTFontGetSymbolicTraits(toCTFontRef(m_font));
-        m_isColorBitmapFont = traits & kCTFontColorGlyphsTrait;
-#if __MAC_OS_X_VERSION_MIN_REQUIRED >= 1080
-        m_isCompositeFontReference = traits & kCTFontCompositeTrait;
-#endif
-    }
-#endif
-    m_CTFont = 0;
-}
-
-bool FontPlatformData::roundsGlyphAdvances() const
-{
-    return [m_font renderingMode] == NSFontAntialiasedIntegerAdvancementsRenderingMode;
-}
-
-bool FontPlatformData::allowsLigatures() const
-{
-    return ![[m_font coveredCharacterSet] characterIsMember:'a'];
-}
-
-inline int mapFontWidthVariantToCTFeatureSelector(FontWidthVariant variant)
-{
-    switch(variant) {
-    case RegularWidth:
-        return TextSpacingProportional;
-
-    case HalfWidth:
-        return TextSpacingHalfWidth;
-
-    case ThirdWidth:
-        return TextSpacingThirdWidth;
-
-    case QuarterWidth:
-        return TextSpacingQuarterWidth;
-    }
-
-    ASSERT_NOT_REACHED();
-    return TextSpacingProportional;
-}
-
-static CFDictionaryRef createFeatureSettingDictionary(int featureTypeIdentifier, int featureSelectorIdentifier)
-{
-    RetainPtr<CFNumberRef> featureTypeIdentifierNumber(AdoptCF, CFNumberCreate(kCFAllocatorDefault, kCFNumberIntType, &featureTypeIdentifier));
-    RetainPtr<CFNumberRef> featureSelectorIdentifierNumber(AdoptCF, CFNumberCreate(kCFAllocatorDefault, kCFNumberIntType, &featureSelectorIdentifier));
-
-    const void* settingKeys[] = { kCTFontFeatureTypeIdentifierKey, kCTFontFeatureSelectorIdentifierKey };
-    const void* settingValues[] = { featureTypeIdentifierNumber.get(), featureSelectorIdentifierNumber.get() };
-
-    return CFDictionaryCreate(kCFAllocatorDefault, settingKeys, settingValues, WTF_ARRAY_LENGTH(settingKeys), &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks);
-}
-
-static CTFontDescriptorRef cascadeToLastResortFontDescriptor()
-{
-    static CTFontDescriptorRef descriptor;
-    if (descriptor)
-        return descriptor;
-
-    const void* keys[] = { kCTFontCascadeListAttribute };
-    const void* descriptors[] = { CTFontDescriptorCreateWithNameAndSize(CFSTR("LastResort"), 0) };
-    const void* values[] = { CFArrayCreate(kCFAllocatorDefault, descriptors, WTF_ARRAY_LENGTH(descriptors), &kCFTypeArrayCallBacks) };
-    RetainPtr<CFDictionaryRef> attributes(AdoptCF, CFDictionaryCreate(kCFAllocatorDefault, keys, values, WTF_ARRAY_LENGTH(keys), &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks));
-
-    descriptor = CTFontDescriptorCreateWithAttributes(attributes.get());
-
-    return descriptor;
-}
-
-static CTFontDescriptorRef cascadeToLastResortAndDisableSwashesFontDescriptor()
-{
-    static CTFontDescriptorRef descriptor;
-    if (descriptor)
-        return descriptor;
-
-    RetainPtr<CFDictionaryRef> lineInitialSwashesOffSetting(AdoptCF, createFeatureSettingDictionary(kSmartSwashType, kLineInitialSwashesOffSelector));
-    RetainPtr<CFDictionaryRef> lineFinalSwashesOffSetting(AdoptCF, createFeatureSettingDictionary(kSmartSwashType, kLineFinalSwashesOffSelector));
-
-    const void* settingDictionaries[] = { lineInitialSwashesOffSetting.get(), lineFinalSwashesOffSetting.get() };
-    RetainPtr<CFArrayRef> featureSettings(AdoptCF, CFArrayCreate(kCFAllocatorDefault, settingDictionaries, WTF_ARRAY_LENGTH(settingDictionaries), &kCFTypeArrayCallBacks));
-
-    const void* keys[] = { kCTFontFeatureSettingsAttribute };
-    const void* values[] = { featureSettings.get() };
-    RetainPtr<CFDictionaryRef> attributes(AdoptCF, CFDictionaryCreate(kCFAllocatorDefault, keys, values, WTF_ARRAY_LENGTH(keys), &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks));
-
-    descriptor = CTFontDescriptorCreateCopyWithAttributes(cascadeToLastResortFontDescriptor(), attributes.get());
-
-    return descriptor;
-}
-
-String FontPlatformData::fontFamilyName() const
-{
-    return String(CTFontCopyDisplayName(ctFont()));
-}
-
-CTFontRef FontPlatformData::ctFont() const
-{
-    if (m_CTFont)
-        return m_CTFont.get();
-
-    if (m_inMemoryFont) {
-        m_CTFont.adoptCF(CTFontCreateWithGraphicsFont(m_inMemoryFont->cgFont(), m_size, 0, cascadeToLastResortFontDescriptor()));
-        return m_CTFont.get();
-    }
-
-    m_CTFont = toCTFontRef(m_font);
-    if (m_CTFont) {
-        CTFontDescriptorRef fontDescriptor;
-        RetainPtr<CFStringRef> postScriptName(AdoptCF, CTFontCopyPostScriptName(m_CTFont.get()));
-        // Hoefler Text Italic has line-initial and -final swashes enabled by default, so disable them.
-        if (CFEqual(postScriptName.get(), CFSTR("HoeflerText-Italic")) || CFEqual(postScriptName.get(), CFSTR("HoeflerText-BlackItalic")))
-            fontDescriptor = cascadeToLastResortAndDisableSwashesFontDescriptor();
-        else
-            fontDescriptor = cascadeToLastResortFontDescriptor();
-        m_CTFont.adoptCF(CTFontCreateCopyWithAttributes(m_CTFont.get(), m_size, 0, fontDescriptor));
-    } else
-        m_CTFont.adoptCF(CTFontCreateWithGraphicsFont(m_cgFont.get(), m_size, 0, cascadeToLastResortFontDescriptor()));
-
-    if (m_widthVariant != RegularWidth) {
-        int featureTypeValue = kTextSpacingType;
-        int featureSelectorValue = mapFontWidthVariantToCTFeatureSelector(m_widthVariant);
-        RetainPtr<CTFontDescriptorRef> sourceDescriptor(AdoptCF, CTFontCopyFontDescriptor(m_CTFont.get()));
-        RetainPtr<CFNumberRef> featureType(AdoptCF, CFNumberCreate(kCFAllocatorDefault, kCFNumberIntType, &featureTypeValue));
-        RetainPtr<CFNumberRef> featureSelector(AdoptCF, CFNumberCreate(kCFAllocatorDefault, kCFNumberIntType, &featureSelectorValue));
-        RetainPtr<CTFontDescriptorRef> newDescriptor(AdoptCF, CTFontDescriptorCreateCopyWithFeature(sourceDescriptor.get(), featureType.get(), featureSelector.get()));
-        RetainPtr<CTFontRef> newFont(AdoptCF, CTFontCreateWithFontDescriptor(newDescriptor.get(), m_size, 0));
-
-        if (newFont)
-            m_CTFont = newFont;
-    }
-
-    return m_CTFont.get();
-}
-
-#if OS(MACOSX)
-static bool isAATFont(CTFontRef ctFont)
-{
-    CFDataRef table = CTFontCopyTable(ctFont, kCTFontTableMort, 0);
-    if (table) {
-        CFRelease(table);
-        return true;
-    }
-    table = CTFontCopyTable(ctFont, kCTFontTableMorx, 0);
-    if (table) {
-        CFRelease(table);
-        return true;
-    }
-    return false;
-}
-
-HarfBuzzFace* FontPlatformData::harfBuzzFace()
-{
-    CTFontRef font = ctFont();
-    // HarfBuzz can't handle AAT font
-    if (isAATFont(font))
-        return 0;
-
-    if (!m_harfBuzzFace) {
-        uint64_t uniqueID = reinterpret_cast<uintptr_t>(font);
-        m_harfBuzzFace = HarfBuzzFace::create(const_cast<FontPlatformData*>(this), uniqueID);
-    }
-    return m_harfBuzzFace.get();
-}
-#endif
-
-#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 ? " synthetic oblique" : "") + (m_orientation ? " vertical orientation" : "");
-}
-#endif
-
-} // namespace WebCore