diff options
Diffstat (limited to 'src/gui/text/qfontdatabase_p.h')
-rw-r--r-- | src/gui/text/qfontdatabase_p.h | 91 |
1 files changed, 41 insertions, 50 deletions
diff --git a/src/gui/text/qfontdatabase_p.h b/src/gui/text/qfontdatabase_p.h index f7998153a1..38e1b4ad20 100644 --- a/src/gui/text/qfontdatabase_p.h +++ b/src/gui/text/qfontdatabase_p.h @@ -1,41 +1,5 @@ -/**************************************************************************** -** -** Copyright (C) 2020 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the QtGui module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and The Qt Company. For licensing terms -** and conditions see https://www.qt.io/terms-conditions. For further -** information use the contact form at https://www.qt.io/contact-us. -** -** GNU Lesser General Public License Usage -** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 3 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL3 included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 3 requirements -** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 2.0 or (at your option) the GNU General -** Public license version 3 or any later version approved by the KDE Free -** Qt Foundation. The licenses are as published by the Free Software -** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 -** included in the packaging of this file. Please review the following -** information to ensure the GNU General Public License requirements will -** be met: https://www.gnu.org/licenses/gpl-2.0.html and -** https://www.gnu.org/licenses/gpl-3.0.html. -** -** $QT_END_LICENSE$ -** -****************************************************************************/ +// Copyright (C) 2020 The Qt Company Ltd. +// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only #ifndef QFONTDATABASE_P_H #define QFONTDATABASE_P_H @@ -54,9 +18,12 @@ #include <QtCore/qcache.h> #include <QtGui/qfontdatabase.h> +#include <QtCore/private/qglobal_p.h> QT_BEGIN_NAMESPACE +struct QtFontDesc; + struct QtFontFallbacksCacheKey { QString family; @@ -207,7 +174,7 @@ struct Q_GUI_EXPORT QtFontFamily bool matchesFamilyName(const QString &familyName) const; QtFontFoundry *foundry(const QString &f, bool = false); - void ensurePopulated(); + bool ensurePopulated(); }; class Q_GUI_EXPORT QFontDatabasePrivate @@ -220,9 +187,11 @@ public: { } ~QFontDatabasePrivate() { - free(); + clearFamilies(); } + void clearFamilies(); + enum FamilyRequestFlags { RequestFamily = 0, EnsureCreated, @@ -230,23 +199,25 @@ public: }; QtFontFamily *family(const QString &f, FamilyRequestFlags flags = EnsurePopulated); - void free() { - while (count--) - delete families[count]; - ::free(families); - families = nullptr; - count = 0; - // don't clear the memory fonts! - } int count; QtFontFamily **families; + bool populated = false; + + QHash<QChar::Script, QStringList> applicationFallbackFontFamilies; QCache<QtFontFallbacksCacheKey, QStringList> fallbacksCache; struct ApplicationFont { QString fileName; + + // Note: The data may be implicitly shared throughout the + // font database and platform font database, so be careful + // to never detach when accessing this member! QByteArray data; + bool isNull() const { return fileName.isEmpty(); } + bool isPopulated() const { return !properties.isEmpty(); } + struct Properties { QString familyName; QString styleName; @@ -263,14 +234,34 @@ public: static QFontDatabasePrivate *instance(); - static void createDatabase(); static void parseFontName(const QString &name, QString &foundry, QString &family); static QString resolveFontFamilyAlias(const QString &family); - static QFontEngine *findFont(const QFontDef &request, int script /* QChar::Script */); + static QFontEngine *findFont(const QFontDef &request, + int script /* QChar::Script */, + bool preferScriptOverFamily = false); static void load(const QFontPrivate *d, int script /* QChar::Script */); static QFontDatabasePrivate *ensureFontDatabase(); void invalidate(); + +private: + static int match(int script, const QFontDef &request, const QString &family_name, + const QString &foundry_name, QtFontDesc *desc, const QList<int> &blacklistedFamilies, + unsigned int *resultingScore = nullptr); + + static unsigned int bestFoundry(int script, unsigned int score, int styleStrategy, + const QtFontFamily *family, const QString &foundry_name, + QtFontStyle::Key styleKey, int pixelSize, char pitch, + QtFontDesc *desc, const QString &styleName = QString()); + + static QFontEngine *loadSingleEngine(int script, const QFontDef &request, + QtFontFamily *family, QtFontFoundry *foundry, + QtFontStyle *style, QtFontSize *size); + + static QFontEngine *loadEngine(int script, const QFontDef &request, + QtFontFamily *family, QtFontFoundry *foundry, + QtFontStyle *style, QtFontSize *size); + }; Q_DECLARE_TYPEINFO(QFontDatabasePrivate::ApplicationFont, Q_RELOCATABLE_TYPE); |