diff options
Diffstat (limited to 'src/gui/text/qplatformfontdatabase.cpp')
| -rw-r--r-- | src/gui/text/qplatformfontdatabase.cpp | 118 |
1 files changed, 76 insertions, 42 deletions
diff --git a/src/gui/text/qplatformfontdatabase.cpp b/src/gui/text/qplatformfontdatabase.cpp index 21d43a249f..a146254f68 100644 --- a/src/gui/text/qplatformfontdatabase.cpp +++ b/src/gui/text/qplatformfontdatabase.cpp @@ -1,41 +1,5 @@ -/**************************************************************************** -** -** Copyright (C) 2016 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) 2016 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 #include "qplatformfontdatabase.h" #include <QtGui/private/qfontengine_p.h> @@ -53,6 +17,8 @@ QT_BEGIN_NAMESPACE +using namespace Qt::StringLiterals; + Q_LOGGING_CATEGORY(lcQpaFonts, "qt.qpa.fonts") void qt_registerFont(const QString &familyname, const QString &stylename, @@ -162,11 +128,31 @@ QSupportedWritingSystems &QSupportedWritingSystems::operator=(const QSupportedWr return *this; } +bool operator==(const QSupportedWritingSystems &lhs, const QSupportedWritingSystems &rhs) +{ + return !(lhs != rhs); +} + +bool operator!=(const QSupportedWritingSystems &lhs, const QSupportedWritingSystems &rhs) +{ + if (lhs.d == rhs.d) + return false; + + Q_ASSERT(lhs.d->list.size() == rhs.d->list.size()); + Q_ASSERT(lhs.d->list.size() == QFontDatabase::WritingSystemsCount); + for (int i = 0; i < QFontDatabase::WritingSystemsCount; ++i) { + if (lhs.d->list.at(i) != rhs.d->list.at(i)) + return true; + } + + return false; +} + #ifndef QT_NO_DEBUG_STREAM QDebug operator<<(QDebug debug, const QSupportedWritingSystems &sws) { - QMetaObject mo = QFontDatabase::staticMetaObject; - QMetaEnum me = mo.enumerator(mo.indexOfEnumerator("WritingSystem")); + const QMetaObject *mo = &QFontDatabase::staticMetaObject; + QMetaEnum me = mo->enumerator(mo->indexOfEnumerator("WritingSystem")); QDebugStateSaver saver(debug); debug.nospace() << "QSupportedWritingSystems("; @@ -293,6 +279,17 @@ QFontEngineMulti *QPlatformFontDatabase::fontEngineMulti(QFontEngine *fontEngine /*! Returns the font engine that can be used to render the font described by the font definition, \a fontDef, in the specified \a script. + + This function is called by QFontDatabase both for system fonts provided + by the platform font database, as well as for application fonts added by + the application developer. + + The handle is the QPlatformFontDatabase specific handle passed when + registering the font family via QPlatformFontDatabase::registerFont. + + The function is called for both fonts added via a filename as well + as fonts added from QByteArray data. Subclasses will need to handle + both cases via its platform specific handle. */ QFontEngine *QPlatformFontDatabase::fontEngine(const QFontDef &fontDef, void *handle) { @@ -302,6 +299,13 @@ QFontEngine *QPlatformFontDatabase::fontEngine(const QFontDef &fontDef, void *ha return nullptr; } +/*! + Returns the font engine that will be used to back a QRawFont, + based on the given \fontData, \a pixelSize, and \a hintingPreference. + + This function is called by QRawFont, and does not play a part in + the normal operations of QFontDatabase. +*/ QFontEngine *QPlatformFontDatabase::fontEngine(const QByteArray &fontData, qreal pixelSize, QFont::HintingPreference hintingPreference) { @@ -357,7 +361,7 @@ QString QPlatformFontDatabase::fontDir() const { QString fontpath = QString::fromLocal8Bit(qgetenv("QT_QPA_FONTDIR")); if (fontpath.isEmpty()) - fontpath = QLibraryInfo::path(QLibraryInfo::LibrariesPath) + QLatin1String("/fonts"); + fontpath = QLibraryInfo::path(QLibraryInfo::LibrariesPath) + "/fonts"_L1; return fontpath; } @@ -381,7 +385,7 @@ bool QPlatformFontDatabase::isPrivateFontFamily(const QString &family) const QFont QPlatformFontDatabase::defaultFont() const { - return QFont(QLatin1String("Helvetica")); + return QFont("Helvetica"_L1); } @@ -614,6 +618,24 @@ void QPlatformFontDatabase::registerAliasToFontFamily(const QString &familyName, } /*! + Requests that the platform font database should be repopulated. + + This will result in invalidating the entire font database. + + The next time the font database is accessed it will be repopulated + via a call to QPlatformFontDatabase::populate(). + + Application fonts will not be removed, and will be automatically + populated when the font database is repopulated. + + \since 6.4 +*/ +void QPlatformFontDatabase::repopulateFontDatabase() +{ + QFontDatabasePrivate::instance()->invalidate(); +} + +/*! Helper function that returns true if the font family has already been registered and populated. \since 5.14 @@ -624,6 +646,18 @@ bool QPlatformFontDatabase::isFamilyPopulated(const QString &familyName) } /*! + Returns true if this font database supports loading named instances from variable application + fonts. + + \since 6.7 +*/ +bool QPlatformFontDatabase::supportsVariableApplicationFonts() const +{ + return false; +} + + +/*! \class QPlatformFontDatabase \since 5.0 \internal |