diff options
Diffstat (limited to 'src/platformsupport/fontdatabases')
5 files changed, 122 insertions, 124 deletions
diff --git a/src/platformsupport/fontdatabases/mac/qcoretextfontdatabase.mm b/src/platformsupport/fontdatabases/mac/qcoretextfontdatabase.mm index 4887a501ba..daa3dc94ea 100644 --- a/src/platformsupport/fontdatabases/mac/qcoretextfontdatabase.mm +++ b/src/platformsupport/fontdatabases/mac/qcoretextfontdatabase.mm @@ -432,88 +432,142 @@ template class QCoreTextFontDatabaseEngineFactory<QCoreTextFontEngine>; template class QCoreTextFontDatabaseEngineFactory<QFontEngineFT>; #endif -QStringList QCoreTextFontDatabase::fallbacksForFamily(const QString &family) +CTFontDescriptorRef descriptorForFamily(const QString &familyName) { - if (family.isEmpty()) - return QStringList(); + return CTFontDescriptorCreateWithAttributes(CFDictionaryRef(@{ + (id)kCTFontFamilyNameAttribute: familyName.toNSString() + })); +} - 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(); - } +CTFontDescriptorRef descriptorForFamily(const char *familyName) +{ + return descriptorForFamily(QString::fromLatin1(familyName)); +} - QCFType<CTFontRef> font = CTFontCreateWithFontDescriptor(fontDescriptor, 12.0, 0); +CFArrayRef fallbacksForDescriptor(CTFontDescriptorRef descriptor) +{ + QCFType<CTFontRef> font = CTFontCreateWithFontDescriptor(descriptor, 0.0, nullptr); if (!font) { - qCWarning(lcQpaFonts) << "Failed to create fallback font for" << family; - return QStringList(); + qCWarning(lcQpaFonts) << "Failed to create fallback font for" << descriptor; + return nullptr; } - QCFType<CFArrayRef> cascadeList = CFArrayRef(CTFontCopyDefaultCascadeListForLanguages(font, + CFArrayRef cascadeList = CFArrayRef(CTFontCopyDefaultCascadeListForLanguages(font, (CFArrayRef)[NSUserDefaults.standardUserDefaults stringArrayForKey:@"AppleLanguages"])); + if (!cascadeList) { - qCWarning(lcQpaFonts) << "Failed to create fallback cascade list for" << family; - return QStringList(); + qCWarning(lcQpaFonts) << "Failed to create fallback cascade list for" << descriptor; + return nullptr; } - 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 cascadeList; +} + +CFArrayRef QCoreTextFontDatabase::fallbacksForFamily(const QString &family) +{ + if (family.isEmpty()) + return nullptr; + + QCFType<CTFontDescriptorRef> fontDescriptor = descriptorForFamily(family); + if (!fontDescriptor) { + qCWarning(lcQpaFonts) << "Failed to create fallback font descriptor for" << family; + return nullptr; } - return fallbackList; + // If the font is not available we want to fall back to the style hint. + // By creating a matching font descriptor we can verify whether the font + // is available or not, and avoid CTFontCreateWithFontDescriptor picking + // a default font for us based on incomplete information. + fontDescriptor = CTFontDescriptorCreateMatchingFontDescriptor(fontDescriptor, 0); + if (!fontDescriptor) + return nullptr; + + return fallbacksForDescriptor(fontDescriptor); +} + +CTFontDescriptorRef descriptorForFontType(CTFontUIFontType uiType) +{ + static const CGFloat kDefaultSizeForRequestedUIType = 0.0; + QCFType<CTFontRef> ctFont = CTFontCreateUIFontForLanguage( + uiType, kDefaultSizeForRequestedUIType, nullptr); + return CTFontCopyFontDescriptor(ctFont); +} + +CTFontDescriptorRef descriptorForStyle(QFont::StyleHint styleHint) +{ + switch (styleHint) { + case QFont::SansSerif: return descriptorForFamily("Helvetica"); + case QFont::Serif: return descriptorForFamily("Times New Roman"); + case QFont::Monospace: return descriptorForFamily("Menlo"); +#ifdef Q_OS_MACOS + case QFont::Cursive: return descriptorForFamily("Apple Chancery"); +#endif + case QFont::Fantasy: return descriptorForFamily("Zapfino"); + case QFont::TypeWriter: return descriptorForFamily("American Typewriter"); + case QFont::AnyStyle: Q_FALLTHROUGH(); + case QFont::System: return descriptorForFontType(kCTFontUIFontSystem); + default: return nullptr; // No matching font on this platform + } } QStringList QCoreTextFontDatabase::fallbacksForFamily(const QString &family, QFont::Style style, QFont::StyleHint styleHint, QChar::Script script) const { Q_UNUSED(style); + qCDebug(lcQpaFonts).nospace() << "Resolving fallbacks families for" + << (!family.isEmpty() ? qPrintable(QLatin1String(" family '%1' with").arg(family)) : "") + << " style hint " << styleHint; + QMacAutoReleasePool pool; - QStringList fallbackList = fallbacksForFamily(family); + QStringList fallbackList; - if (fallbackList.isEmpty()) { + QCFType<CFArrayRef> fallbackFonts = fallbacksForFamily(family); + if (!fallbackFonts || !CFArrayGetCount(fallbackFonts)) { // 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); + if (!family.isEmpty()) + qCDebug(lcQpaFonts) << "No fallbacks found. Using style hint instead"; + + if (QCFType<CTFontDescriptorRef> styleDescriptor = descriptorForStyle(styleHint)) { + CFMutableArrayRef tmp = CFArrayCreateMutable(kCFAllocatorDefault, 0, &kCFTypeArrayCallBacks); + CFArrayAppendValue(tmp, styleDescriptor); + QCFType<CFArrayRef> styleFallbacks = fallbacksForDescriptor(styleDescriptor); + CFArrayAppendArray(tmp, styleFallbacks, CFRangeMake(0, CFArrayGetCount(styleFallbacks))); + fallbackFonts = tmp; } } - if (fallbackList.isEmpty()) + if (!fallbackFonts) return fallbackList; - // .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); + const int numberOfFallbacks = CFArrayGetCount(fallbackFonts); + for (int i = 0; i < numberOfFallbacks; ++i) { + auto fallbackDescriptor = CTFontDescriptorRef(CFArrayGetValueAtIndex(fallbackFonts, i)); + auto fallbackFamilyName = QCFString(CTFontDescriptorCopyAttribute(fallbackDescriptor, kCTFontFamilyNameAttribute)); + + if (!isFamilyPopulated(fallbackFamilyName)) { + // We need to populate, or at least register the fallback fonts, + // otherwise the Qt font database may not know they exist. + if (isPrivateFontFamily(fallbackFamilyName)) + const_cast<QCoreTextFontDatabase *>(this)->populateFromDescriptor(fallbackDescriptor); + else + registerFontFamily(fallbackFamilyName); + } + + fallbackList.append(fallbackFamilyName); + } + + // Some fallback fonts will have have an order in the list returned + // by Core Text that would indicate they should be preferred for e.g. + // Arabic, or Emoji, while in reality only supporting a tiny subset + // of the required glyphs, or representing them by question marks. + // Move these to the end, so that the proper fonts are preferred. + for (const char *family : { ".Apple Symbols Fallback", ".Noto Sans Universal" }) { + int index = fallbackList.indexOf(QLatin1String(family)); + if (index >= 0) + fallbackList.move(index, fallbackList.size() - 1); + } #if defined(Q_OS_MACOS) // Since we are only returning a list of default fonts for the current language, we do not @@ -529,18 +583,11 @@ QStringList QCoreTextFontDatabase::fallbacksForFamily(const QString &family, QFo fallbackList.append(QStringLiteral("Apple Symbols")); #endif - // 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); - } - extern QStringList qt_sort_families_by_writing_system(QChar::Script, const QStringList &); fallbackList = qt_sort_families_by_writing_system(script, fallbackList); + qCDebug(lcQpaFonts).nospace() << "Fallback families ordered by script " << script << ": " << fallbackList; + return fallbackList; } @@ -700,10 +747,8 @@ static CTFontDescriptorRef fontDescriptorFromTheme(QPlatformTheme::Font f) } #endif // Q_OS_IOS, Q_OS_TVOS, Q_OS_WATCHOS - // OSX default case and iOS fallback case - CTFontUIFontType fontType = fontTypeFromTheme(f); - QCFType<CTFontRef> ctFont = CTFontCreateUIFontForLanguage(fontType, 0.0, NULL); - return CTFontCopyFontDescriptor(ctFont); + // macOS default case and iOS fallback case + return descriptorForFontType(fontTypeFromTheme(f)); } const QHash<QPlatformTheme::Font, QFont *> &QCoreTextFontDatabase::themeFonts() const @@ -736,8 +781,8 @@ QFont *QCoreTextFontDatabase::themeFont(QPlatformTheme::Font f) const QFont QCoreTextFontDatabase::defaultFont() const { if (defaultFontName.isEmpty()) { - QCFType<CTFontRef> font = CTFontCreateUIFontForLanguage(kCTFontUIFontSystem, 12.0, NULL); - defaultFontName = (QString) QCFString(CTFontCopyFullName(font)); + QCFType<CTFontDescriptorRef> systemFont = descriptorForFontType(kCTFontUIFontSystem); + defaultFontName = QCFString(CTFontDescriptorCopyAttribute(systemFont, kCTFontFamilyNameAttribute)); } return QFont(defaultFontName); diff --git a/src/platformsupport/fontdatabases/mac/qcoretextfontdatabase_p.h b/src/platformsupport/fontdatabases/mac/qcoretextfontdatabase_p.h index 69ff454d1e..eebb3eb964 100644 --- a/src/platformsupport/fontdatabases/mac/qcoretextfontdatabase_p.h +++ b/src/platformsupport/fontdatabases/mac/qcoretextfontdatabase_p.h @@ -92,7 +92,7 @@ protected: private: void populateFromDescriptor(CTFontDescriptorRef font, const QString &familyName = QString()); - static QStringList fallbacksForFamily(const QString &family); + static CFArrayRef fallbacksForFamily(const QString &family); mutable QString defaultFontName; diff --git a/src/platformsupport/fontdatabases/windows/qwindowsfontdatabase.cpp b/src/platformsupport/fontdatabases/windows/qwindowsfontdatabase.cpp index 79f7eb3d43..011476cf13 100644 --- a/src/platformsupport/fontdatabases/windows/qwindowsfontdatabase.cpp +++ b/src/platformsupport/fontdatabases/windows/qwindowsfontdatabase.cpp @@ -53,6 +53,7 @@ #include <QtCore/QtEndian> #include <QtCore/QThreadStorage> #include <QtCore/private/qsystemlibrary_p.h> +#include <QtCore/private/qwinregistry_p.h> #include <wchar.h> @@ -1210,33 +1211,8 @@ static int QT_WIN_CALLBACK populateFontFamilies(const LOGFONT *logFont, const TE void QWindowsFontDatabase::addDefaultEUDCFont() { - QString path; - { - HKEY key; - if (RegOpenKeyEx(HKEY_CURRENT_USER, - L"EUDC\\1252", - 0, - KEY_READ, - &key) != ERROR_SUCCESS) { - return; - } - - WCHAR value[MAX_PATH]; - DWORD bufferSize = sizeof(value); - ZeroMemory(value, bufferSize); - - if (RegQueryValueEx(key, - L"SystemDefaultEUDCFont", - nullptr, - nullptr, - reinterpret_cast<LPBYTE>(value), - &bufferSize) == ERROR_SUCCESS) { - path = QString::fromWCharArray(value); - } - - RegCloseKey(key); - } - + const QString path = QWinRegistryKey(HKEY_CURRENT_USER, LR"(EUDC\1252)") + .stringValue(L"SystemDefaultEUDCFont"); if (!path.isEmpty()) { QFile file(path); if (!file.open(QIODevice::ReadOnly)) { @@ -2105,28 +2081,6 @@ int QWindowsFontDatabase::defaultVerticalDPI() return vDPI; } -QString QWindowsFontDatabase::readRegistryString(HKEY parentHandle, const wchar_t *keyPath, const wchar_t *keyName) -{ - QString result; - HKEY handle = 0; - if (RegOpenKeyEx(parentHandle, keyPath, 0, KEY_READ, &handle) == ERROR_SUCCESS) { - // get the size and type of the value - DWORD dataType; - DWORD dataSize; - if (RegQueryValueEx(handle, keyName, 0, &dataType, 0, &dataSize) == ERROR_SUCCESS) { - if (dataType == REG_SZ || dataType == REG_EXPAND_SZ) { - dataSize += 2; // '\0' missing? - QVarLengthArray<unsigned char> data(dataSize); - data[dataSize - 2] = data[dataSize - 1] = '\0'; - if (RegQueryValueEx(handle, keyName, 0, 0, data.data(), &dataSize) == ERROR_SUCCESS) - result = QString::fromWCharArray(reinterpret_cast<const wchar_t *>(data.data())); - } - } - RegCloseKey(handle); - } - return result; -} - bool QWindowsFontDatabase::isPrivateFontFamily(const QString &family) const { return m_eudcFonts.contains(family) || QPlatformFontDatabase::isPrivateFontFamily(family); diff --git a/src/platformsupport/fontdatabases/windows/qwindowsfontdatabase_p.h b/src/platformsupport/fontdatabases/windows/qwindowsfontdatabase_p.h index a1cab17a87..f132e69d4d 100644 --- a/src/platformsupport/fontdatabases/windows/qwindowsfontdatabase_p.h +++ b/src/platformsupport/fontdatabases/windows/qwindowsfontdatabase_p.h @@ -133,8 +133,6 @@ public: static void setFontOptions(unsigned options); static unsigned fontOptions(); - static QString readRegistryString(HKEY parentHandle, const wchar_t *keyPath, const wchar_t *keyName); - private: void removeApplicationFonts(); void addDefaultEUDCFont(); diff --git a/src/platformsupport/fontdatabases/windows/qwindowsfontenginedirectwrite.cpp b/src/platformsupport/fontdatabases/windows/qwindowsfontenginedirectwrite.cpp index a4490a6664..e796c18e79 100644 --- a/src/platformsupport/fontdatabases/windows/qwindowsfontenginedirectwrite.cpp +++ b/src/platformsupport/fontdatabases/windows/qwindowsfontenginedirectwrite.cpp @@ -47,6 +47,7 @@ #include <QtCore/QFile> #include <private/qstringiterator_p.h> #include <QtCore/private/qsystemlibrary_p.h> +#include <QtCore/private/qwinregistry_p.h> #include <QtGui/private/qguiapplication_p.h> #include <qpa/qplatformintegration.h> #include <QtGui/private/qhighdpiscaling_p.h> @@ -945,10 +946,10 @@ void QWindowsFontEngineDirectWrite::initFontInfo(const QFontDef &request, QString QWindowsFontEngineDirectWrite::fontNameSubstitute(const QString &familyName) { - const wchar_t key[] = L"Software\\Microsoft\\Windows NT\\CurrentVersion\\FontSubstitutes"; const QString substitute = - QWindowsFontDatabase::readRegistryString(HKEY_LOCAL_MACHINE, key, - reinterpret_cast<const wchar_t *>(familyName.utf16())); + QWinRegistryKey(HKEY_LOCAL_MACHINE, + LR"(Software\Microsoft\Windows NT\CurrentVersion\FontSubstitutes)") + .stringValue(familyName); return substitute.isEmpty() ? familyName : substitute; } |