diff options
Diffstat (limited to 'src/platformsupport/fontdatabases/mac/qcoretextfontdatabase.mm')
-rw-r--r-- | src/platformsupport/fontdatabases/mac/qcoretextfontdatabase.mm | 266 |
1 files changed, 133 insertions, 133 deletions
diff --git a/src/platformsupport/fontdatabases/mac/qcoretextfontdatabase.mm b/src/platformsupport/fontdatabases/mac/qcoretextfontdatabase.mm index 047773d8e3..4887a501ba 100644 --- a/src/platformsupport/fontdatabases/mac/qcoretextfontdatabase.mm +++ b/src/platformsupport/fontdatabases/mac/qcoretextfontdatabase.mm @@ -48,6 +48,8 @@ #import <UIKit/UIFont.h> #endif +#include <QtCore/qelapsedtimer.h> + #include "qcoretextfontdatabase_p.h" #include "qfontengine_coretext_p.h" #if QT_CONFIG(settings) @@ -100,20 +102,6 @@ static const char *languageForWritingSystem[] = { }; enum { LanguageCount = sizeof(languageForWritingSystem) / sizeof(const char *) }; -#ifdef Q_OS_OSX -static NSInteger languageMapSort(id obj1, id obj2, void *context) -{ - NSArray<NSString *> *map1 = reinterpret_cast<NSArray<NSString *> *>(obj1); - NSArray<NSString *> *map2 = reinterpret_cast<NSArray<NSString *> *>(obj2); - NSArray<NSString *> *languages = reinterpret_cast<NSArray<NSString *> *>(context); - - NSString *lang1 = [map1 objectAtIndex:0]; - NSString *lang2 = [map2 objectAtIndex:0]; - - return [languages indexOfObject:lang1] - [languages indexOfObject:lang2]; -} -#endif - QCoreTextFontDatabase::QCoreTextFontDatabase() : m_hasPopulatedAliases(false) { @@ -127,39 +115,77 @@ QCoreTextFontDatabase::~QCoreTextFontDatabase() void QCoreTextFontDatabase::populateFontDatabase() { + qCDebug(lcQpaFonts) << "Populating font database..."; + QElapsedTimer elapsed; + if (lcQpaFonts().isDebugEnabled()) + elapsed.start(); + QCFType<CFArrayRef> familyNames = CTFontManagerCopyAvailableFontFamilyNames(); for (NSString *familyName in familyNames.as<const NSArray *>()) QPlatformFontDatabase::registerFontFamily(QString::fromNSString(familyName)); + qCDebug(lcQpaFonts) << "Populating available families took" << elapsed.restart() << "ms"; + // Force creating the theme fonts to get the descriptors in m_systemFontDescriptors if (m_themeFonts.isEmpty()) (void)themeFonts(); + qCDebug(lcQpaFonts) << "Resolving theme fonts took" << elapsed.restart() << "ms"; + Q_FOREACH (CTFontDescriptorRef fontDesc, m_systemFontDescriptors) populateFromDescriptor(fontDesc); + qCDebug(lcQpaFonts) << "Populating system descriptors took" << elapsed.restart() << "ms"; + Q_ASSERT(!m_hasPopulatedAliases); } -bool QCoreTextFontDatabase::populateFamilyAliases() +bool QCoreTextFontDatabase::populateFamilyAliases(const QString &missingFamily) { #if defined(Q_OS_MACOS) if (m_hasPopulatedAliases) return false; + // There's no API to go from a localized family name to its non-localized + // name, so we have to resort to enumerating all the available fonts and + // doing a reverse lookup. + + qCDebug(lcQpaFonts) << "Populating family aliases..."; + QElapsedTimer elapsed; + elapsed.start(); + + QString nonLocalizedMatch; QCFType<CFArrayRef> familyNames = CTFontManagerCopyAvailableFontFamilyNames(); + NSFontManager *fontManager = NSFontManager.sharedFontManager; for (NSString *familyName in familyNames.as<const NSArray *>()) { - NSFontManager *fontManager = [NSFontManager sharedFontManager]; NSString *localizedFamilyName = [fontManager localizedNameForFamily:familyName face:nil]; if (![localizedFamilyName isEqual:familyName]) { - QPlatformFontDatabase::registerAliasToFontFamily( - QString::fromNSString(familyName), - QString::fromNSString(localizedFamilyName)); + QString nonLocalizedFamily = QString::fromNSString(familyName); + QString localizedFamily = QString::fromNSString(localizedFamilyName); + QPlatformFontDatabase::registerAliasToFontFamily(nonLocalizedFamily, localizedFamily); + if (localizedFamily == missingFamily) + nonLocalizedMatch = nonLocalizedFamily; } } m_hasPopulatedAliases = true; + + if (lcQpaFonts().isWarningEnabled()) { + QString warningMessage; + QDebug msg(&warningMessage); + + msg << "Populating font family aliases took" << elapsed.restart() << "ms."; + if (!nonLocalizedMatch.isNull()) + msg << "Replace uses of" << missingFamily << "with its non-localized name" << nonLocalizedMatch; + else + msg << "Replace uses of missing font family" << missingFamily << "with one that exists"; + msg << "to avoid this cost."; + + qCWarning(lcQpaFonts) << qPrintable(warningMessage); + } + return true; #else + Q_UNUSED(missingFamily); return false; #endif } @@ -173,7 +199,7 @@ void QCoreTextFontDatabase::populateFamily(const QString &familyName) // A single family might match several different fonts with different styles eg. QCFType<CFArrayRef> matchingFonts = (CFArrayRef) CTFontDescriptorCreateMatchingFontDescriptors(nameOnlyDescriptor, 0); if (!matchingFonts) { - qWarning() << "QCoreTextFontDatabase: Found no matching fonts for family" << familyName; + qCWarning(lcQpaFonts) << "QCoreTextFontDatabase: Found no matching fonts for family" << familyName; return; } @@ -406,142 +432,116 @@ template class QCoreTextFontDatabaseEngineFactory<QCoreTextFontEngine>; template class QCoreTextFontDatabaseEngineFactory<QFontEngineFT>; #endif -QFont::StyleHint styleHintFromNSString(NSString *style) +QStringList QCoreTextFontDatabase::fallbacksForFamily(const QString &family) { - if ([style isEqual: @"sans-serif"]) - return QFont::SansSerif; - else if ([style isEqual: @"monospace"]) - return QFont::Monospace; - else if ([style isEqual: @"cursive"]) - return QFont::Cursive; - else if ([style isEqual: @"serif"]) - return QFont::Serif; - else if ([style isEqual: @"fantasy"]) - return QFont::Fantasy; - else // if ([style isEqual: @"default"]) - return QFont::AnyStyle; -} + if (family.isEmpty()) + return QStringList(); -#ifdef Q_OS_OSX -static QString familyNameFromPostScriptName(NSString *psName) -{ - QCFType<CTFontDescriptorRef> fontDescriptor = (CTFontDescriptorRef) CTFontDescriptorCreateWithNameAndSize((CFStringRef)psName, 12.0); - QCFString familyName = (CFStringRef) CTFontDescriptorCopyAttribute(fontDescriptor, kCTFontFamilyNameAttribute); - QString name = QString::fromCFString(familyName); - if (name.isEmpty()) - qWarning() << "QCoreTextFontDatabase: Failed to resolve family name for PostScript name " << QString::fromCFString((CFStringRef)psName); + auto attributes = @{ id(kCTFontFamilyNameAttribute): family.toNSString() }; + QCFType<CTFontDescriptorRef> fontDescriptor = CTFontDescriptorCreateWithAttributes(CFDictionaryRef(attributes)); + if (!fontDescriptor) { + qCWarning(lcQpaFonts) << "Failed to create fallback font descriptor for" << family; + return QStringList(); + } - return name; -} -#endif + QCFType<CTFontRef> font = CTFontCreateWithFontDescriptor(fontDescriptor, 12.0, 0); + if (!font) { + qCWarning(lcQpaFonts) << "Failed to create fallback font for" << family; + return QStringList(); + } -static void addExtraFallbacks(QStringList *fallbackList) -{ -#if defined(Q_OS_MACOS) - // Since we are only returning a list of default fonts for the current language, we do not - // cover all unicode completely. This was especially an issue for some of the common script - // symbols such as mathematical symbols, currency or geometric shapes. To minimize the risk - // of missing glyphs, we add Arial Unicode MS as a final fail safe, since this covers most - // of Unicode 2.1. - if (!fallbackList->contains(QStringLiteral("Arial Unicode MS"))) - fallbackList->append(QStringLiteral("Arial Unicode MS")); - // Since some symbols (specifically Braille) are not in Arial Unicode MS, we - // add Apple Symbols to cover those too. - if (!fallbackList->contains(QStringLiteral("Apple Symbols"))) - fallbackList->append(QStringLiteral("Apple Symbols")); -#else - Q_UNUSED(fallbackList) -#endif + QCFType<CFArrayRef> cascadeList = CFArrayRef(CTFontCopyDefaultCascadeListForLanguages(font, + (CFArrayRef)[NSUserDefaults.standardUserDefaults stringArrayForKey:@"AppleLanguages"])); + if (!cascadeList) { + qCWarning(lcQpaFonts) << "Failed to create fallback cascade list for" << family; + return QStringList(); + } + + QStringList fallbackList; + const int numCascades = CFArrayGetCount(cascadeList); + for (int i = 0; i < numCascades; ++i) { + CTFontDescriptorRef fontFallback = CTFontDescriptorRef(CFArrayGetValueAtIndex(cascadeList, i)); + QCFString fallbackFamilyName = CFStringRef(CTFontDescriptorCopyAttribute(fontFallback, kCTFontFamilyNameAttribute)); + fallbackList.append(QString::fromCFString(fallbackFamilyName)); + } + + return fallbackList; } QStringList QCoreTextFontDatabase::fallbacksForFamily(const QString &family, QFont::Style style, QFont::StyleHint styleHint, QChar::Script script) const { Q_UNUSED(style); - Q_UNUSED(script); QMacAutoReleasePool pool; - static QHash<QString, QStringList> fallbackLists; - - if (!family.isEmpty()) { - QCFType<CFMutableDictionaryRef> attributes = CFDictionaryCreateMutable(kCFAllocatorDefault, 0, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks); - CFDictionaryAddValue(attributes, kCTFontFamilyNameAttribute, QCFString(family)); - if (QCFType<CTFontDescriptorRef> fontDescriptor = CTFontDescriptorCreateWithAttributes(attributes)) { - if (QCFType<CTFontRef> font = CTFontCreateWithFontDescriptor(fontDescriptor, 12.0, 0)) { - NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults]; - NSArray *languages = [defaults stringArrayForKey: @"AppleLanguages"]; - - QCFType<CFArrayRef> cascadeList = (CFArrayRef) CTFontCopyDefaultCascadeListForLanguages(font, (CFArrayRef) languages); - if (cascadeList) { - QStringList fallbackList; - const int numCascades = CFArrayGetCount(cascadeList); - for (int i = 0; i < numCascades; ++i) { - CTFontDescriptorRef fontFallback = (CTFontDescriptorRef) CFArrayGetValueAtIndex(cascadeList, i); - QCFString fallbackFamilyName = (CFStringRef) CTFontDescriptorCopyAttribute(fontFallback, kCTFontFamilyNameAttribute); - fallbackList.append(QString::fromCFString(fallbackFamilyName)); - } - - addExtraFallbacks(&fallbackList); - extern QStringList qt_sort_families_by_writing_system(QChar::Script, const QStringList &); - fallbackList = qt_sort_families_by_writing_system(script, fallbackList); - - return fallbackList; + QStringList fallbackList = fallbacksForFamily(family); + + if (fallbackList.isEmpty()) { + // We were not able to find a fallback for the specific family, + // or the family was empty, so we fall back to the style hint. + QString styleFamily = [styleHint]{ + switch (styleHint) { + case QFont::SansSerif: return QStringLiteral("Helvetica"); + case QFont::Serif: return QStringLiteral("Times New Roman"); + case QFont::Monospace: return QStringLiteral("Menlo"); +#ifdef Q_OS_MACOS + case QFont::Cursive: return QStringLiteral("Apple Chancery"); +#endif + case QFont::Fantasy: return QStringLiteral("Zapfino"); + case QFont::TypeWriter: return QStringLiteral("American Typewriter"); + case QFont::AnyStyle: Q_FALLTHROUGH(); + case QFont::System: { + QCFType<CTFontRef> font = CTFontCreateUIFontForLanguage(kCTFontUIFontSystem, 12.0, NULL); + return static_cast<QString>(QCFString(CTFontCopyFullName(font))); } + default: return QString(); // No matching font on this platform } + }(); + if (!styleFamily.isEmpty()) { + fallbackList = fallbacksForFamily(styleFamily); + if (!fallbackList.contains(styleFamily)) + fallbackList.prepend(styleFamily); } } - // We were not able to find a fallback for the specific family, - // so we fall back to the stylehint. - - static const QString styleLookupKey = QString::fromLatin1(".QFontStyleHint_%1"); - - static bool didPopulateStyleFallbacks = false; - if (!didPopulateStyleFallbacks) { -#if defined(Q_OS_MACX) - NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults]; - NSArray<NSString *> *languages = [defaults stringArrayForKey:@"AppleLanguages"]; - - NSDictionary<NSString *, id> *fallbackDict = [NSDictionary<NSString *, id> dictionaryWithContentsOfFile:@"/System/Library/Frameworks/ApplicationServices.framework/Frameworks/CoreText.framework/Resources/DefaultFontFallbacks.plist"]; - - for (NSString *style in [fallbackDict allKeys]) { - NSArray *list = [fallbackDict valueForKey:style]; - QFont::StyleHint fallbackStyleHint = styleHintFromNSString(style); - QStringList fallbackList; - for (id item in list) { - // sort the array based on system language preferences - if ([item isKindOfClass:[NSArray class]]) { - NSArray *langs = [reinterpret_cast<NSArray *>(item) - sortedArrayUsingFunction:languageMapSort context:languages]; - for (NSArray<NSString *> *map in langs) - fallbackList.append(familyNameFromPostScriptName([map objectAtIndex:1])); - } - else if ([item isKindOfClass: [NSString class]]) - fallbackList.append(familyNameFromPostScriptName(item)); - } + if (fallbackList.isEmpty()) + return fallbackList; - fallbackList.append(QLatin1String("Apple Color Emoji")); + // .Apple Symbols Fallback will be at the beginning of the list and we will + // detect that this has glyphs for Arabic and other writing systems. + // Since it is a symbol font, it should be the last resort, so that + // the proper fonts for these writing systems are preferred. + int symbolIndex = fallbackList.indexOf(QLatin1String(".Apple Symbols Fallback")); + if (symbolIndex >= 0) + fallbackList.move(symbolIndex, fallbackList.size() - 1); - addExtraFallbacks(&fallbackList); - fallbackLists[styleLookupKey.arg(fallbackStyleHint)] = fallbackList; - } -#else - QStringList staticFallbackList; - staticFallbackList << QString::fromLatin1("Helvetica,Apple Color Emoji,Geeza Pro,Arial Hebrew,Thonburi,Kailasa" - "Hiragino Kaku Gothic ProN,.Heiti J,Apple SD Gothic Neo,.Heiti K,Heiti SC,Heiti TC" - "Bangla Sangam MN,Devanagari Sangam MN,Gujarati Sangam MN,Gurmukhi MN,Kannada Sangam MN" - "Malayalam Sangam MN,Oriya Sangam MN,Sinhala Sangam MN,Tamil Sangam MN,Telugu Sangam MN" - "Euphemia UCAS,.PhoneFallback").split(QLatin1String(",")); - - for (int i = QFont::Helvetica; i <= QFont::Fantasy; ++i) - fallbackLists[styleLookupKey.arg(i)] = staticFallbackList; +#if defined(Q_OS_MACOS) + // Since we are only returning a list of default fonts for the current language, we do not + // cover all Unicode completely. This was especially an issue for some of the common script + // symbols such as mathematical symbols, currency or geometric shapes. To minimize the risk + // of missing glyphs, we add Arial Unicode MS as a final fail safe, since this covers most + // of Unicode 2.1. + if (!fallbackList.contains(QStringLiteral("Arial Unicode MS"))) + fallbackList.append(QStringLiteral("Arial Unicode MS")); + // Since some symbols (specifically Braille) are not in Arial Unicode MS, we + // add Apple Symbols to cover those too. + if (!fallbackList.contains(QStringLiteral("Apple Symbols"))) + fallbackList.append(QStringLiteral("Apple Symbols")); #endif - didPopulateStyleFallbacks = true; + // Since iOS 13, the cascade list may contain meta-fonts which have not been + // populated to the database, such as ".AppleJapaneseFont". It is important that we + // include this in the fallback list, in order to get fallback support for all + // languages + for (const QString &fallback : fallbackList) { + if (!QPlatformFontDatabase::isFamilyPopulated(fallback)) + const_cast<QCoreTextFontDatabase *>(this)->populateFamily(fallback); } - Q_ASSERT(!fallbackLists.isEmpty()); - return fallbackLists[styleLookupKey.arg(styleHint)]; + extern QStringList qt_sort_families_by_writing_system(QChar::Script, const QStringList &); + fallbackList = qt_sort_families_by_writing_system(script, fallbackList); + + return fallbackList; } QStringList QCoreTextFontDatabase::addApplicationFont(const QByteArray &fontData, const QString &fileName) |