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Unified Diff: Source/core/platform/graphics/cocoa/FontPlatformDataCocoa.mm

Issue 99103006: Moving GraphicsContext and dependencies from core to platform. (Closed) Base URL: svn://svn.chromium.org/blink/trunk
Patch Set: Final patch - fixes Android Created 7 years ago
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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
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