<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE html> <html lang="en"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>main.cpp Example File | Qt Widgets 5.9</title> <link rel="stylesheet" type="text/css" href="style/offline-simple.css" /> <script type="text/javascript"> document.getElementsByTagName("link").item(0).setAttribute("href", "style/offline.css"); // loading style sheet breaks anchors that were jumped to before // so force jumping to anchor again setTimeout(function() { var anchor = location.hash; // need to jump to different anchor first (e.g. none) location.hash = "#"; setTimeout(function() { location.hash = anchor; }, 0); }, 0); </script> </head> <body> <div class="header" id="qtdocheader"> <div class="main"> <div class="main-rounded"> <div class="navigationbar"> <table><tr> <td >Qt 5.9</td><td ><a href="qtwidgets-index.html">Qt Widgets</a></td><td ><a href="qtwidgets-itemviews-dirview-example.html">Dir View Example</a></td><td >main.cpp Example File</td></tr></table><table class="buildversion"><tr> <td id="buildversion" width="100%" align="right">Qt 5.9.4 Reference Documentation</td> </tr></table> </div> </div> <div class="content"> <div class="line"> <div class="content mainContent"> <div class="sidebar"><div class="sidebar-content" id="sidebar-content"></div></div> <h1 class="title">main.cpp Example File</h1> <span class="subtitle">itemviews/dirview/main.cpp</span> <!-- $$$itemviews/dirview/main.cpp-description --> <div class="descr"> <a name="details"></a> <pre class="cpp"> <span class="comment">/**************************************************************************** ** ** 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." ** ** $QT_END_LICENSE$ ** ****************************************************************************/</span> <span class="preprocessor">#include <QApplication></span> <span class="preprocessor">#include <QDesktopWidget></span> <span class="preprocessor">#include <QFileSystemModel></span> <span class="preprocessor">#include <QFileIconProvider></span> <span class="preprocessor">#include <QTreeView></span> <span class="preprocessor">#include <QCommandLineParser></span> <span class="preprocessor">#include <QCommandLineOption></span> <span class="type">int</span> main(<span class="type">int</span> argc<span class="operator">,</span> <span class="type">char</span> <span class="operator">*</span>argv<span class="operator">[</span><span class="operator">]</span>) { <span class="type"><a href="qapplication.html">QApplication</a></span> app(argc<span class="operator">,</span> argv); <span class="type"><a href="../qtcore/qcoreapplication.html">QCoreApplication</a></span><span class="operator">::</span>setApplicationVersion(QT_VERSION_STR); <span class="type"><a href="../qtcore/qcommandlineparser.html">QCommandLineParser</a></span> parser; parser<span class="operator">.</span>setApplicationDescription(<span class="string">"Qt Dir View Example"</span>); parser<span class="operator">.</span>addHelpOption(); parser<span class="operator">.</span>addVersionOption(); <span class="type"><a href="../qtcore/qcommandlineoption.html">QCommandLineOption</a></span> dontUseCustomDirectoryIconsOption(<span class="string">"c"</span><span class="operator">,</span> <span class="string">"Set QFileIconProvider::DontUseCustomDirectoryIcons"</span>); parser<span class="operator">.</span>addOption(dontUseCustomDirectoryIconsOption); parser<span class="operator">.</span>addPositionalArgument(<span class="string">"directory"</span><span class="operator">,</span> <span class="string">"The directory to start in."</span>); parser<span class="operator">.</span>process(app); <span class="keyword">const</span> <span class="type"><a href="../qtcore/qstring.html">QString</a></span> rootPath <span class="operator">=</span> parser<span class="operator">.</span>positionalArguments()<span class="operator">.</span>isEmpty() <span class="operator">?</span> <span class="type"><a href="../qtcore/qstring.html">QString</a></span>() : parser<span class="operator">.</span>positionalArguments()<span class="operator">.</span>first(); <span class="type"><a href="qfilesystemmodel.html">QFileSystemModel</a></span> model; model<span class="operator">.</span>setRootPath(<span class="string">""</span>); <span class="keyword">if</span> (parser<span class="operator">.</span>isSet(dontUseCustomDirectoryIconsOption)) model<span class="operator">.</span>iconProvider()<span class="operator">-</span><span class="operator">></span>setOptions(<span class="type"><a href="qfileiconprovider.html">QFileIconProvider</a></span><span class="operator">::</span>DontUseCustomDirectoryIcons); <span class="type"><a href="qtreeview.html">QTreeView</a></span> tree; tree<span class="operator">.</span>setModel(<span class="operator">&</span>model); <span class="keyword">if</span> (<span class="operator">!</span>rootPath<span class="operator">.</span>isEmpty()) { <span class="keyword">const</span> <span class="type"><a href="../qtcore/qmodelindex.html">QModelIndex</a></span> rootIndex <span class="operator">=</span> model<span class="operator">.</span>index(<span class="type"><a href="../qtcore/qdir.html">QDir</a></span><span class="operator">::</span>cleanPath(rootPath)); <span class="keyword">if</span> (rootIndex<span class="operator">.</span>isValid()) tree<span class="operator">.</span>setRootIndex(rootIndex); } <span class="comment">// Demonstrating look and feel features</span> tree<span class="operator">.</span>setAnimated(<span class="keyword">false</span>); tree<span class="operator">.</span>setIndentation(<span class="number">20</span>); tree<span class="operator">.</span>setSortingEnabled(<span class="keyword">true</span>); <span class="keyword">const</span> <span class="type"><a href="../qtcore/qsize.html">QSize</a></span> availableSize <span class="operator">=</span> <span class="type"><a href="qapplication.html">QApplication</a></span><span class="operator">::</span>desktop()<span class="operator">-</span><span class="operator">></span>availableGeometry(<span class="operator">&</span>tree)<span class="operator">.</span>size(); tree<span class="operator">.</span>resize(availableSize <span class="operator">/</span> <span class="number">2</span>); tree<span class="operator">.</span>setColumnWidth(<span class="number">0</span><span class="operator">,</span> tree<span class="operator">.</span>width() <span class="operator">/</span> <span class="number">3</span>); tree<span class="operator">.</span>setWindowTitle(<span class="type"><a href="../qtcore/qobject.html">QObject</a></span><span class="operator">::</span>tr(<span class="string">"Dir View"</span>)); tree<span class="operator">.</span>show(); <span class="keyword">return</span> app<span class="operator">.</span>exec(); } </pre> </div> <!-- @@@itemviews/dirview/main.cpp --> </div> </div> </div> </div> </div> <div class="footer"> <p> <acronym title="Copyright">©</acronym> 2017 The Qt Company Ltd. Documentation contributions included herein are the copyrights of their respective owners.<br> The documentation provided herein is licensed under the terms of the <a href="http://www.gnu.org/licenses/fdl.html">GNU Free Documentation License version 1.3</a> as published by the Free Software Foundation.<br> Qt and respective logos are trademarks of The Qt Company Ltd. in Finland and/or other countries worldwide. All other trademarks are property of their respective owners. </p> </div> </body> </html>