main.cpp 范例文件

musicplayer/main.cpp
/**************************************************************************** ** ** Copyright (C) 2015 The Qt Company Ltd. ** Contact: http://www.qt.io/licensing/ ** ** This file is part of the examples of the Qt Toolkit. ** ** $QT_BEGIN_LICENSE:BSD$ ** 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. ** ** BSD License Usage ** Alternatively, you may use this file under the terms of the BSD license ** as follows: ** ** "Redistribution and use in source and binary forms, with or without ** modification, are permitted provided that the following conditions are ** met: ** * Redistributions of source code must retain the above copyright ** notice, this list of conditions and the following disclaimer. ** * Redistributions in binary form must reproduce the above copyright ** notice, this list of conditions and the following disclaimer in ** the documentation and/or other materials provided with the ** distribution. ** * Neither the name of The Qt Company Ltd nor the names of its ** contributors may be used to endorse or promote products derived ** from this software without specific prior written permission. ** ** ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT ** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR ** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT ** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, ** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT ** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, ** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY ** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT ** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE ** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." ** ** $QT_END_LICENSE$ ** ****************************************************************************/
#include "musicplayer.h" #include <QApplication> #include <QCommandLineParser> #include <QCommandLineOption> #include <QDesktopWidget> #include <QFileInfo> #include <QMimeDatabase> #include <QSettings> #include <QIcon> #include <QDir> #include <QUrl> static bool associateFileTypes() { QString displayName = QGuiApplication::applicationDisplayName(); QString filePath = QCoreApplication::applicationFilePath(); QString fileName = QFileInfo(filePath).fileName(); const QString key = QStringLiteral("HKEY_CURRENT_USER\\Software\\Classes\\Applications\\") + fileName; QSettings settings(key, QSettings::NativeFormat); if (settings.status() != QSettings::NoError) { qWarning() << "Cannot access registry key" << key; return false; } settings.setValue(QStringLiteral("FriendlyAppName"), displayName); settings.beginGroup(QStringLiteral("SupportedTypes")); QMimeDatabase mimeDatabase; const QStringList supportedMimeTypes = MusicPlayer::supportedMimeTypes(); for (const QString &fileType : supportedMimeTypes) { const QStringList suffixes = mimeDatabase.mimeTypeForName(fileType).suffixes(); for (QString suffix : suffixes) { suffix.prepend('.'); settings.setValue(suffix, QString()); } } settings.endGroup(); settings.beginGroup(QStringLiteral("shell")); settings.beginGroup(QStringLiteral("open")); settings.setValue(QStringLiteral("FriendlyAppName"), displayName); settings.beginGroup(QStringLiteral("Command")); settings.setValue(QStringLiteral("."), QLatin1Char('"') + QDir::toNativeSeparators(filePath) + QStringLiteral("\" \"%1\"")); return true; } int main(int argc, char *argv[]) { QApplication app(argc, argv); QCoreApplication::setApplicationName(QStringLiteral("MusicPlayer")); QCoreApplication::setApplicationVersion( QLatin1String(QT_VERSION_STR)); QCoreApplication::setOrganizationName(QStringLiteral("QtWinExtras")); QCoreApplication::setOrganizationDomain("qt-project.org"); QGuiApplication::setApplicationDisplayName(QStringLiteral("QtWinExtras Music Player")); if (!associateFileTypes()) return -1; QCommandLineParser parser; parser.setApplicationDescription(QGuiApplication::applicationDisplayName()); parser.addHelpOption(); parser.addVersionOption(); parser.addPositionalArgument(QStringLiteral("url"), MusicPlayer::tr("The URL to open.")); parser.process(app); MusicPlayer player; if (!parser.positionalArguments().isEmpty()) player.playUrl(QUrl::fromUserInput(parser.positionalArguments().constFirst(), QDir::currentPath(), QUrl::AssumeLocalFile)); const QRect availableGeometry = QApplication::desktop()->availableGeometry(&player); player.resize(availableGeometry.width() / 6, availableGeometry.height() / 17); player.show(); return app.exec(); }