1 /**************************************************************************** 2 ** 3 ** Copyright (C) 2016 The Qt Company Ltd. 4 ** Contact: https://www.qt.io/licensing/ 5 ** 6 ** This file is part of the plugins of the Qt Toolkit. 7 ** 8 ** $QT_BEGIN_LICENSE:LGPL$ 9 ** Commercial License Usage 10 ** Licensees holding valid commercial Qt licenses may use this file in 11 ** accordance with the commercial license agreement provided with the 12 ** Software or, alternatively, in accordance with the terms contained in 13 ** a written agreement between you and The Qt Company. For licensing terms 14 ** and conditions see https://www.qt.io/terms-conditions. For further 15 ** information use the contact form at https://www.qt.io/contact-us. 16 ** 17 ** GNU Lesser General Public License Usage 18 ** Alternatively, this file may be used under the terms of the GNU Lesser 19 ** General Public License version 3 as published by the Free Software 20 ** Foundation and appearing in the file LICENSE.LGPL3 included in the 21 ** packaging of this file. Please review the following information to 22 ** ensure the GNU Lesser General Public License version 3 requirements 23 ** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. 24 ** 25 ** GNU General Public License Usage 26 ** Alternatively, this file may be used under the terms of the GNU 27 ** General Public License version 2.0 or (at your option) the GNU General 28 ** Public license version 3 or any later version approved by the KDE Free 29 ** Qt Foundation. The licenses are as published by the Free Software 30 ** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 31 ** included in the packaging of this file. Please review the following 32 ** information to ensure the GNU General Public License requirements will 33 ** be met: https://www.gnu.org/licenses/gpl-2.0.html and 34 ** https://www.gnu.org/licenses/gpl-3.0.html. 35 ** 36 ** $QT_END_LICENSE$ 37 ** 38 ****************************************************************************/ 39 40 #ifndef QCORETEXTFONTDATABASE_H 41 #define QCORETEXTFONTDATABASE_H 42 43 // 44 // W A R N I N G 45 // ------------- 46 // 47 // This file is not part of the Qt API. It exists purely as an 48 // implementation detail. This header file may change from version to 49 // version without notice, or even be removed. 50 // 51 // We mean it. 52 // 53 54 #include <qglobal.h> 55 56 #include <qpa/qplatformfontdatabase.h> 57 #include <qpa/qplatformtheme.h> 58 #include <private/qcore_mac_p.h> 59 60 Q_FORWARD_DECLARE_CF_TYPE(CTFontDescriptor); 61 Q_FORWARD_DECLARE_CF_TYPE(CTFont); 62 63 Q_DECLARE_METATYPE(QCFType<CGFontRef>); 64 Q_DECLARE_METATYPE(QCFType<CFURLRef>); 65 66 QT_BEGIN_NAMESPACE 67 68 class QCoreTextFontDatabase : public QPlatformFontDatabase 69 { 70 public: 71 QCoreTextFontDatabase(); 72 ~QCoreTextFontDatabase(); 73 void populateFontDatabase() override; 74 bool populateFamilyAliases(const QString &missingFamily) override; 75 void populateFamily(const QString &familyName) override; 76 void invalidate() override; 77 78 QStringList fallbacksForFamily(const QString &family, QFont::Style style, QFont::StyleHint styleHint, QChar::Script script) const override; 79 QStringList addApplicationFont(const QByteArray &fontData, const QString &fileName) override; 80 void releaseHandle(void *handle) override; 81 bool isPrivateFontFamily(const QString &family) const override; 82 QFont defaultFont() const override; 83 bool fontsAlwaysScalable() const override; 84 QList<int> standardSizes() const override; 85 86 // For iOS and OS X platform themes 87 QFont *themeFont(QPlatformTheme::Font) const; 88 const QHash<QPlatformTheme::Font, QFont *> &themeFonts() const; 89 90 protected: 91 mutable QSet<CTFontDescriptorRef> m_systemFontDescriptors; 92 93 private: 94 void populateFromDescriptor(CTFontDescriptorRef font, const QString &familyName = QString()); 95 static CFArrayRef fallbacksForFamily(const QString &family); 96 97 mutable QString defaultFontName; 98 99 mutable QHash<QPlatformTheme::Font, QFont *> m_themeFonts; 100 bool m_hasPopulatedAliases; 101 }; 102 103 // Split out into separate template class so that the compiler doesn't have 104 // to generate code for each override in QCoreTextFontDatabase for each T. 105 106 template <class T> 107 class QCoreTextFontDatabaseEngineFactory : public QCoreTextFontDatabase 108 { 109 public: 110 QFontEngine *fontEngine(const QFontDef &fontDef, void *handle) override; 111 QFontEngine *fontEngine(const QByteArray &fontData, qreal pixelSize, QFont::HintingPreference hintingPreference) override; 112 }; 113 114 QT_END_NAMESPACE 115 116 #endif // QCORETEXTFONTDATABASE_H 117