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 QtGui module 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 QRAWFONTPRIVATE_P_H 41 #define QRAWFONTPRIVATE_P_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 <QtGui/private/qtguiglobal_p.h> 55 #include "qrawfont.h" 56 57 #include "qfontengine_p.h" 58 #include <QtCore/qthread.h> 59 #include <QtCore/qthreadstorage.h> 60 61 #if !defined(QT_NO_RAWFONT) 62 63 QT_BEGIN_NAMESPACE 64 65 namespace { class CustomFontFileLoader; } 66 class Q_GUI_EXPORT QRawFontPrivate 67 { 68 public: QRawFontPrivate()69 QRawFontPrivate() 70 : fontEngine(nullptr) 71 , hintingPreference(QFont::PreferDefaultHinting) 72 , thread(nullptr) 73 {} 74 QRawFontPrivate(const QRawFontPrivate & other)75 QRawFontPrivate(const QRawFontPrivate &other) 76 : fontEngine(other.fontEngine) 77 , hintingPreference(other.hintingPreference) 78 , thread(other.thread) 79 { 80 #ifndef QT_NO_DEBUG 81 Q_ASSERT(fontEngine == nullptr || thread == QThread::currentThread()); 82 #endif 83 if (fontEngine != nullptr) 84 fontEngine->ref.ref(); 85 } 86 ~QRawFontPrivate()87 ~QRawFontPrivate() 88 { 89 #ifndef QT_NO_DEBUG 90 Q_ASSERT(ref.loadRelaxed() == 0); 91 #endif 92 cleanUp(); 93 } 94 cleanUp()95 inline void cleanUp() 96 { 97 setFontEngine(nullptr); 98 hintingPreference = QFont::PreferDefaultHinting; 99 } 100 isValid()101 inline bool isValid() const 102 { 103 #ifndef QT_NO_DEBUG 104 Q_ASSERT(fontEngine == nullptr || thread == QThread::currentThread()); 105 #endif 106 return fontEngine != nullptr; 107 } 108 setFontEngine(QFontEngine * engine)109 inline void setFontEngine(QFontEngine *engine) 110 { 111 #ifndef QT_NO_DEBUG 112 Q_ASSERT(fontEngine == nullptr || thread == QThread::currentThread()); 113 #endif 114 if (fontEngine == engine) 115 return; 116 117 if (fontEngine != nullptr) { 118 if (!fontEngine->ref.deref()) 119 delete fontEngine; 120 #ifndef QT_NO_DEBUG 121 thread = nullptr; 122 #endif 123 } 124 125 fontEngine = engine; 126 127 if (fontEngine != nullptr) { 128 fontEngine->ref.ref(); 129 #ifndef QT_NO_DEBUG 130 thread = QThread::currentThread(); 131 Q_ASSERT(thread); 132 #endif 133 } 134 } 135 136 void loadFromData(const QByteArray &fontData, 137 qreal pixelSize, 138 QFont::HintingPreference hintingPreference); 139 get(const QRawFont & font)140 static QRawFontPrivate *get(const QRawFont &font) { return font.d.data(); } 141 142 QFontEngine *fontEngine; 143 QFont::HintingPreference hintingPreference; 144 QAtomicInt ref; 145 146 private: 147 QThread *thread; 148 }; 149 150 QT_END_NAMESPACE 151 152 #endif // QT_NO_RAWFONT 153 154 #endif // QRAWFONTPRIVATE_P_H 155