main.cpp 范例文件

itemviews/dirview/main.cpp
/**************************************************************************** ** ** Copyright (C) 2016 The Qt Company Ltd. ** Contact: https://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 <QApplication> #include <QDesktopWidget> #include <QFileSystemModel> #include <QFileIconProvider> #include <QTreeView> #include <QCommandLineParser> #include <QCommandLineOption> int main(int argc, char *argv[]) { QApplication app(argc, argv); QCoreApplication::setApplicationVersion(QT_VERSION_STR); QCommandLineParser parser; parser.setApplicationDescription("Qt Dir View Example"); parser.addHelpOption(); parser.addVersionOption(); QCommandLineOption dontUseCustomDirectoryIconsOption("c", "Set QFileIconProvider::DontUseCustomDirectoryIcons"); parser.addOption(dontUseCustomDirectoryIconsOption); parser.addPositionalArgument("directory", "The directory to start in."); parser.process(app); const QString rootPath = parser.positionalArguments().isEmpty() ? QString() : parser.positionalArguments().first(); QFileSystemModel model; model.setRootPath(""); if (parser.isSet(dontUseCustomDirectoryIconsOption)) model.iconProvider()->setOptions(QFileIconProvider::DontUseCustomDirectoryIcons); QTreeView tree; tree.setModel(&model); if (!rootPath.isEmpty()) { const QModelIndex rootIndex = model.index(QDir::cleanPath(rootPath)); if (rootIndex.isValid()) tree.setRootIndex(rootIndex); } // Demonstrating look and feel features tree.setAnimated(false); tree.setIndentation(20); tree.setSortingEnabled(true); const QSize availableSize = QApplication::desktop()->availableGeometry(&tree).size(); tree.resize(availableSize / 2); tree.setColumnWidth(0, tree.width() / 3); tree.setWindowTitle(QObject::tr("Dir View")); tree.show(); return app.exec(); }