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Breadcrumbs go here --> </ul> </div> <div class="toolbuttons toolblock"> <ul> <li id="smallA" class="t_button">A</li> <li id="medA" class="t_button active">A</li> <li id="bigA" class="t_button">A</li> <li id="print" class="t_button"><a href="javascript:this.print();"> <span>Print</span></a></li> </ul> </div> </div> <div class="content mainContent"> <h1 class="title">mainwindow.cpp Example File</h1> <span class="small-subtitle">phonon/qmusicplayer/mainwindow.cpp</span> <!-- $$$phonon/qmusicplayer/mainwindow.cpp-description --> <div class="descr"> <a name="details"></a> <pre class="cpp"> <span class="comment">/**************************************************************************** ** ** Copyright (C) 2015 The Qt Company Ltd. ** Contact: http://www.qt.io/licensing/ ** ** This file is part of the examples of the Qt Toolkit. ** ** $QT_BEGIN_LICENSE:BSD$ ** 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 <QtGui></span> <span class="preprocessor">#include "mainwindow.h"</span> MainWindow<span class="operator">::</span>MainWindow() { audioOutput <span class="operator">=</span> <span class="keyword">new</span> Phonon<span class="operator">::</span>AudioOutput(Phonon<span class="operator">::</span>MusicCategory<span class="operator">,</span> <span class="keyword">this</span>); mediaObject <span class="operator">=</span> <span class="keyword">new</span> Phonon<span class="operator">::</span>MediaObject(<span class="keyword">this</span>); metaInformationResolver <span class="operator">=</span> <span class="keyword">new</span> Phonon<span class="operator">::</span>MediaObject(<span class="keyword">this</span>); mediaObject<span class="operator">-</span><span class="operator">></span>setTickInterval(<span class="number">1000</span>); connect(mediaObject<span class="operator">,</span> SIGNAL(tick(<span class="type"><a href="qtglobal.html#qint64-typedef">qint64</a></span>))<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> SLOT(tick(<span class="type"><a href="qtglobal.html#qint64-typedef">qint64</a></span>))); connect(mediaObject<span class="operator">,</span> SIGNAL(stateChanged(Phonon<span class="operator">::</span>State<span class="operator">,</span>Phonon<span class="operator">::</span>State))<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> SLOT(stateChanged(Phonon<span class="operator">::</span>State<span class="operator">,</span>Phonon<span class="operator">::</span>State))); connect(metaInformationResolver<span class="operator">,</span> SIGNAL(stateChanged(Phonon<span class="operator">::</span>State<span class="operator">,</span>Phonon<span class="operator">::</span>State))<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> SLOT(metaStateChanged(Phonon<span class="operator">::</span>State<span class="operator">,</span>Phonon<span class="operator">::</span>State))); connect(mediaObject<span class="operator">,</span> SIGNAL(currentSourceChanged(Phonon<span class="operator">::</span>MediaSource))<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> SLOT(sourceChanged(Phonon<span class="operator">::</span>MediaSource))); connect(mediaObject<span class="operator">,</span> SIGNAL(aboutToFinish())<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> SLOT(aboutToFinish())); Phonon<span class="operator">::</span>createPath(mediaObject<span class="operator">,</span> audioOutput); setupActions(); setupMenus(); setupUi(); timeLcd<span class="operator">-</span><span class="operator">></span>display(<span class="string">"00:00"</span>); } <span class="type">void</span> MainWindow<span class="operator">::</span>addFiles() { <span class="type"><a href="qstringlist.html">QStringList</a></span> files <span class="operator">=</span> <span class="type"><a href="qfiledialog.html">QFileDialog</a></span><span class="operator">::</span>getOpenFileNames(<span class="keyword">this</span><span class="operator">,</span> tr(<span class="string">"Select Music Files"</span>)<span class="operator">,</span> <span class="type"><a href="qdesktopservices.html">QDesktopServices</a></span><span class="operator">::</span>storageLocation(<span class="type"><a href="qdesktopservices.html">QDesktopServices</a></span><span class="operator">::</span>MusicLocation)); <span class="keyword">if</span> (files<span class="operator">.</span>isEmpty()) <span class="keyword">return</span>; <span class="type">int</span> index <span class="operator">=</span> sources<span class="operator">.</span>size(); foreach (<span class="type"><a href="qstring.html">QString</a></span> string<span class="operator">,</span> files) { Phonon<span class="operator">::</span>MediaSource source(string); sources<span class="operator">.</span>append(source); } <span class="keyword">if</span> (<span class="operator">!</span>sources<span class="operator">.</span>isEmpty()) metaInformationResolver<span class="operator">-</span><span class="operator">></span>setCurrentSource(sources<span class="operator">.</span>at(index)); } <span class="type">void</span> MainWindow<span class="operator">::</span>about() { <span class="type"><a href="qmessagebox.html">QMessageBox</a></span><span class="operator">::</span>information(<span class="keyword">this</span><span class="operator">,</span> tr(<span class="string">"About Music Player"</span>)<span class="operator">,</span> tr(<span class="string">"The Music Player example shows how to use Phonon - the multimedia"</span> <span class="string">" framework that comes with Qt - to create a simple music player."</span>)); } <span class="type">void</span> MainWindow<span class="operator">::</span>stateChanged(Phonon<span class="operator">::</span>State newState<span class="operator">,</span> Phonon<span class="operator">::</span>State <span class="comment">/* oldState */</span>) { <span class="keyword">switch</span> (newState) { <span class="keyword">case</span> Phonon<span class="operator">::</span>ErrorState: <span class="keyword">if</span> (mediaObject<span class="operator">-</span><span class="operator">></span>errorType() <span class="operator">=</span><span class="operator">=</span> Phonon<span class="operator">::</span>FatalError) { <span class="type"><a href="qmessagebox.html">QMessageBox</a></span><span class="operator">::</span>warning(<span class="keyword">this</span><span class="operator">,</span> tr(<span class="string">"Fatal Error"</span>)<span class="operator">,</span> mediaObject<span class="operator">-</span><span class="operator">></span>errorString()); } <span class="keyword">else</span> { <span class="type"><a href="qmessagebox.html">QMessageBox</a></span><span class="operator">::</span>warning(<span class="keyword">this</span><span class="operator">,</span> tr(<span class="string">"Error"</span>)<span class="operator">,</span> mediaObject<span class="operator">-</span><span class="operator">></span>errorString()); } <span class="keyword">break</span>; <span class="keyword">case</span> Phonon<span class="operator">::</span>PlayingState: playAction<span class="operator">-</span><span class="operator">></span>setEnabled(<span class="keyword">false</span>); pauseAction<span class="operator">-</span><span class="operator">></span>setEnabled(<span class="keyword">true</span>); stopAction<span class="operator">-</span><span class="operator">></span>setEnabled(<span class="keyword">true</span>); <span class="keyword">break</span>; <span class="keyword">case</span> Phonon<span class="operator">::</span>StoppedState: stopAction<span class="operator">-</span><span class="operator">></span>setEnabled(<span class="keyword">false</span>); playAction<span class="operator">-</span><span class="operator">></span>setEnabled(<span class="keyword">true</span>); pauseAction<span class="operator">-</span><span class="operator">></span>setEnabled(<span class="keyword">false</span>); timeLcd<span class="operator">-</span><span class="operator">></span>display(<span class="string">"00:00"</span>); <span class="keyword">break</span>; <span class="keyword">case</span> Phonon<span class="operator">::</span>PausedState: pauseAction<span class="operator">-</span><span class="operator">></span>setEnabled(<span class="keyword">false</span>); stopAction<span class="operator">-</span><span class="operator">></span>setEnabled(<span class="keyword">true</span>); playAction<span class="operator">-</span><span class="operator">></span>setEnabled(<span class="keyword">true</span>); <span class="keyword">break</span>; <span class="keyword">case</span> Phonon<span class="operator">::</span>BufferingState: <span class="keyword">break</span>; <span class="keyword">default</span>: ; } } <span class="type">void</span> MainWindow<span class="operator">::</span>tick(<span class="type"><a href="qtglobal.html#qint64-typedef">qint64</a></span> time) { <span class="type"><a href="qtime.html">QTime</a></span> displayTime(<span class="number">0</span><span class="operator">,</span> (time <span class="operator">/</span> <span class="number">60000</span>) <span class="operator">%</span> <span class="number">60</span><span class="operator">,</span> (time <span class="operator">/</span> <span class="number">1000</span>) <span class="operator">%</span> <span class="number">60</span>); timeLcd<span class="operator">-</span><span class="operator">></span>display(displayTime<span class="operator">.</span>toString(<span class="string">"mm:ss"</span>)); } <span class="type">void</span> MainWindow<span class="operator">::</span>tableClicked(<span class="type">int</span> row<span class="operator">,</span> <span class="type">int</span> <span class="comment">/* column */</span>) { <span class="type">bool</span> wasPlaying <span class="operator">=</span> mediaObject<span class="operator">-</span><span class="operator">></span>state() <span class="operator">=</span><span class="operator">=</span> Phonon<span class="operator">::</span>PlayingState; mediaObject<span class="operator">-</span><span class="operator">></span>stop(); mediaObject<span class="operator">-</span><span class="operator">></span>clearQueue(); <span class="keyword">if</span> (row <span class="operator">></span><span class="operator">=</span> sources<span class="operator">.</span>size()) <span class="keyword">return</span>; mediaObject<span class="operator">-</span><span class="operator">></span>setCurrentSource(sources<span class="operator">[</span>row<span class="operator">]</span>); <span class="keyword">if</span> (wasPlaying) mediaObject<span class="operator">-</span><span class="operator">></span>play(); <span class="keyword">else</span> mediaObject<span class="operator">-</span><span class="operator">></span>stop(); } <span class="type">void</span> MainWindow<span class="operator">::</span>sourceChanged(<span class="keyword">const</span> Phonon<span class="operator">::</span>MediaSource <span class="operator">&</span>source) { musicTable<span class="operator">-</span><span class="operator">></span>selectRow(sources<span class="operator">.</span>indexOf(source)); timeLcd<span class="operator">-</span><span class="operator">></span>display(<span class="string">"00:00"</span>); } <span class="type">void</span> MainWindow<span class="operator">::</span>metaStateChanged(Phonon<span class="operator">::</span>State newState<span class="operator">,</span> Phonon<span class="operator">::</span>State <span class="comment">/* oldState */</span>) { <span class="keyword">if</span> (newState <span class="operator">=</span><span class="operator">=</span> Phonon<span class="operator">::</span>ErrorState) { <span class="type"><a href="qmessagebox.html">QMessageBox</a></span><span class="operator">::</span>warning(<span class="keyword">this</span><span class="operator">,</span> tr(<span class="string">"Error opening files"</span>)<span class="operator">,</span> metaInformationResolver<span class="operator">-</span><span class="operator">></span>errorString()); <span class="keyword">while</span> (<span class="operator">!</span>sources<span class="operator">.</span>isEmpty() <span class="operator">&</span><span class="operator">&</span> <span class="operator">!</span>(sources<span class="operator">.</span>takeLast() <span class="operator">=</span><span class="operator">=</span> metaInformationResolver<span class="operator">-</span><span class="operator">></span>currentSource())) {} <span class="comment">/* loop */</span>; <span class="keyword">return</span>; } <span class="keyword">if</span> (newState <span class="operator">!</span><span class="operator">=</span> Phonon<span class="operator">::</span>StoppedState <span class="operator">&</span><span class="operator">&</span> newState <span class="operator">!</span><span class="operator">=</span> Phonon<span class="operator">::</span>PausedState) <span class="keyword">return</span>; <span class="keyword">if</span> (metaInformationResolver<span class="operator">-</span><span class="operator">></span>currentSource()<span class="operator">.</span>type() <span class="operator">=</span><span class="operator">=</span> Phonon<span class="operator">::</span>MediaSource<span class="operator">::</span>Invalid) <span class="keyword">return</span>; <span class="type"><a href="qmap.html">QMap</a></span><span class="operator"><</span><span class="type"><a href="qstring.html">QString</a></span><span class="operator">,</span> <span class="type"><a href="qstring.html">QString</a></span><span class="operator">></span> metaData <span class="operator">=</span> metaInformationResolver<span class="operator">-</span><span class="operator">></span>metaData(); <span class="type"><a href="qstring.html">QString</a></span> title <span class="operator">=</span> metaData<span class="operator">.</span>value(<span class="string">"TITLE"</span>); <span class="keyword">if</span> (title <span class="operator">=</span><span class="operator">=</span> <span class="string">""</span>) title <span class="operator">=</span> metaInformationResolver<span class="operator">-</span><span class="operator">></span>currentSource()<span class="operator">.</span>fileName(); <span class="type"><a href="qtablewidgetitem.html">QTableWidgetItem</a></span> <span class="operator">*</span>titleItem <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qtablewidgetitem.html">QTableWidgetItem</a></span>(title); titleItem<span class="operator">-</span><span class="operator">></span>setFlags(titleItem<span class="operator">-</span><span class="operator">></span>flags() <span class="operator">^</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>ItemIsEditable); <span class="type"><a href="qtablewidgetitem.html">QTableWidgetItem</a></span> <span class="operator">*</span>artistItem <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qtablewidgetitem.html">QTableWidgetItem</a></span>(metaData<span class="operator">.</span>value(<span class="string">"ARTIST"</span>)); artistItem<span class="operator">-</span><span class="operator">></span>setFlags(artistItem<span class="operator">-</span><span class="operator">></span>flags() <span class="operator">^</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>ItemIsEditable); <span class="type"><a href="qtablewidgetitem.html">QTableWidgetItem</a></span> <span class="operator">*</span>albumItem <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qtablewidgetitem.html">QTableWidgetItem</a></span>(metaData<span class="operator">.</span>value(<span class="string">"ALBUM"</span>)); albumItem<span class="operator">-</span><span class="operator">></span>setFlags(albumItem<span class="operator">-</span><span class="operator">></span>flags() <span class="operator">^</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>ItemIsEditable); <span class="type"><a href="qtablewidgetitem.html">QTableWidgetItem</a></span> <span class="operator">*</span>yearItem <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qtablewidgetitem.html">QTableWidgetItem</a></span>(metaData<span class="operator">.</span>value(<span class="string">"DATE"</span>)); yearItem<span class="operator">-</span><span class="operator">></span>setFlags(yearItem<span class="operator">-</span><span class="operator">></span>flags() <span class="operator">^</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>ItemIsEditable); <span class="type">int</span> currentRow <span class="operator">=</span> musicTable<span class="operator">-</span><span class="operator">></span>rowCount(); musicTable<span class="operator">-</span><span class="operator">></span>insertRow(currentRow); musicTable<span class="operator">-</span><span class="operator">></span>setItem(currentRow<span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> titleItem); musicTable<span class="operator">-</span><span class="operator">></span>setItem(currentRow<span class="operator">,</span> <span class="number">1</span><span class="operator">,</span> artistItem); musicTable<span class="operator">-</span><span class="operator">></span>setItem(currentRow<span class="operator">,</span> <span class="number">2</span><span class="operator">,</span> albumItem); musicTable<span class="operator">-</span><span class="operator">></span>setItem(currentRow<span class="operator">,</span> <span class="number">3</span><span class="operator">,</span> yearItem); <span class="keyword">if</span> (musicTable<span class="operator">-</span><span class="operator">></span>selectedItems()<span class="operator">.</span>isEmpty()) { musicTable<span class="operator">-</span><span class="operator">></span>selectRow(<span class="number">0</span>); mediaObject<span class="operator">-</span><span class="operator">></span>setCurrentSource(metaInformationResolver<span class="operator">-</span><span class="operator">></span>currentSource()); } Phonon<span class="operator">::</span>MediaSource source <span class="operator">=</span> metaInformationResolver<span class="operator">-</span><span class="operator">></span>currentSource(); <span class="type">int</span> index <span class="operator">=</span> sources<span class="operator">.</span>indexOf(metaInformationResolver<span class="operator">-</span><span class="operator">></span>currentSource()) <span class="operator">+</span> <span class="number">1</span>; <span class="keyword">if</span> (sources<span class="operator">.</span>size() <span class="operator">></span> index) { metaInformationResolver<span class="operator">-</span><span class="operator">></span>setCurrentSource(sources<span class="operator">.</span>at(index)); } <span class="keyword">else</span> { musicTable<span class="operator">-</span><span class="operator">></span>resizeColumnsToContents(); <span class="keyword">if</span> (musicTable<span class="operator">-</span><span class="operator">></span>columnWidth(<span class="number">0</span>) <span class="operator">></span> <span class="number">300</span>) musicTable<span class="operator">-</span><span class="operator">></span>setColumnWidth(<span class="number">0</span><span class="operator">,</span> <span class="number">300</span>); } } <span class="type">void</span> MainWindow<span class="operator">::</span>aboutToFinish() { <span class="type">int</span> index <span class="operator">=</span> sources<span class="operator">.</span>indexOf(mediaObject<span class="operator">-</span><span class="operator">></span>currentSource()) <span class="operator">+</span> <span class="number">1</span>; <span class="keyword">if</span> (sources<span class="operator">.</span>size() <span class="operator">></span> index) { mediaObject<span class="operator">-</span><span class="operator">></span>enqueue(sources<span class="operator">.</span>at(index)); } } <span class="type">void</span> MainWindow<span class="operator">::</span>setupActions() { playAction <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qaction.html">QAction</a></span>(style()<span class="operator">-</span><span class="operator">></span>standardIcon(<span class="type"><a href="qstyle.html">QStyle</a></span><span class="operator">::</span>SP_MediaPlay)<span class="operator">,</span> tr(<span class="string">"Play"</span>)<span class="operator">,</span> <span class="keyword">this</span>); playAction<span class="operator">-</span><span class="operator">></span>setShortcut(tr(<span class="string">"Ctrl+P"</span>)); playAction<span class="operator">-</span><span class="operator">></span>setDisabled(<span class="keyword">true</span>); pauseAction <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qaction.html">QAction</a></span>(style()<span class="operator">-</span><span class="operator">></span>standardIcon(<span class="type"><a href="qstyle.html">QStyle</a></span><span class="operator">::</span>SP_MediaPause)<span class="operator">,</span> tr(<span class="string">"Pause"</span>)<span class="operator">,</span> <span class="keyword">this</span>); pauseAction<span class="operator">-</span><span class="operator">></span>setShortcut(tr(<span class="string">"Ctrl+A"</span>)); pauseAction<span class="operator">-</span><span class="operator">></span>setDisabled(<span class="keyword">true</span>); stopAction <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qaction.html">QAction</a></span>(style()<span class="operator">-</span><span class="operator">></span>standardIcon(<span class="type"><a href="qstyle.html">QStyle</a></span><span class="operator">::</span>SP_MediaStop)<span class="operator">,</span> tr(<span class="string">"Stop"</span>)<span class="operator">,</span> <span class="keyword">this</span>); stopAction<span class="operator">-</span><span class="operator">></span>setShortcut(tr(<span class="string">"Ctrl+S"</span>)); stopAction<span class="operator">-</span><span class="operator">></span>setDisabled(<span class="keyword">true</span>); nextAction <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qaction.html">QAction</a></span>(style()<span class="operator">-</span><span class="operator">></span>standardIcon(<span class="type"><a href="qstyle.html">QStyle</a></span><span class="operator">::</span>SP_MediaSkipForward)<span class="operator">,</span> tr(<span class="string">"Next"</span>)<span class="operator">,</span> <span class="keyword">this</span>); nextAction<span class="operator">-</span><span class="operator">></span>setShortcut(tr(<span class="string">"Ctrl+N"</span>)); previousAction <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qaction.html">QAction</a></span>(style()<span class="operator">-</span><span class="operator">></span>standardIcon(<span class="type"><a href="qstyle.html">QStyle</a></span><span class="operator">::</span>SP_MediaSkipBackward)<span class="operator">,</span> tr(<span class="string">"Previous"</span>)<span class="operator">,</span> <span class="keyword">this</span>); previousAction<span class="operator">-</span><span class="operator">></span>setShortcut(tr(<span class="string">"Ctrl+R"</span>)); addFilesAction <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qaction.html">QAction</a></span>(tr(<span class="string">"Add &Files"</span>)<span class="operator">,</span> <span class="keyword">this</span>); addFilesAction<span class="operator">-</span><span class="operator">></span>setShortcut(tr(<span class="string">"Ctrl+F"</span>)); exitAction <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qaction.html">QAction</a></span>(tr(<span class="string">"E&xit"</span>)<span class="operator">,</span> <span class="keyword">this</span>); exitAction<span class="operator">-</span><span class="operator">></span>setShortcuts(<span class="type"><a href="qkeysequence.html">QKeySequence</a></span><span class="operator">::</span>Quit); aboutAction <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qaction.html">QAction</a></span>(tr(<span class="string">"A&bout"</span>)<span class="operator">,</span> <span class="keyword">this</span>); aboutAction<span class="operator">-</span><span class="operator">></span>setShortcut(tr(<span class="string">"Ctrl+B"</span>)); aboutQtAction <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qaction.html">QAction</a></span>(tr(<span class="string">"About &Qt"</span>)<span class="operator">,</span> <span class="keyword">this</span>); aboutQtAction<span class="operator">-</span><span class="operator">></span>setShortcut(tr(<span class="string">"Ctrl+Q"</span>)); connect(playAction<span class="operator">,</span> SIGNAL(triggered())<span class="operator">,</span> mediaObject<span class="operator">,</span> SLOT(play())); connect(pauseAction<span class="operator">,</span> SIGNAL(triggered())<span class="operator">,</span> mediaObject<span class="operator">,</span> SLOT(pause()) ); connect(stopAction<span class="operator">,</span> SIGNAL(triggered())<span class="operator">,</span> mediaObject<span class="operator">,</span> SLOT(stop())); connect(addFilesAction<span class="operator">,</span> SIGNAL(triggered())<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> SLOT(addFiles())); connect(exitAction<span class="operator">,</span> SIGNAL(triggered())<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> SLOT(close())); connect(aboutAction<span class="operator">,</span> SIGNAL(triggered())<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> SLOT(about())); connect(aboutQtAction<span class="operator">,</span> SIGNAL(triggered())<span class="operator">,</span> qApp<span class="operator">,</span> SLOT(aboutQt())); } <span class="type">void</span> MainWindow<span class="operator">::</span>setupMenus() { <span class="type"><a href="qmenu.html">QMenu</a></span> <span class="operator">*</span>fileMenu <span class="operator">=</span> menuBar()<span class="operator">-</span><span class="operator">></span>addMenu(tr(<span class="string">"&File"</span>)); fileMenu<span class="operator">-</span><span class="operator">></span>addAction(addFilesAction); fileMenu<span class="operator">-</span><span class="operator">></span>addSeparator(); fileMenu<span class="operator">-</span><span class="operator">></span>addAction(exitAction); <span class="type"><a href="qmenu.html">QMenu</a></span> <span class="operator">*</span>aboutMenu <span class="operator">=</span> menuBar()<span class="operator">-</span><span class="operator">></span>addMenu(tr(<span class="string">"&Help"</span>)); aboutMenu<span class="operator">-</span><span class="operator">></span>addAction(aboutAction); aboutMenu<span class="operator">-</span><span class="operator">></span>addAction(aboutQtAction); } <span class="type">void</span> MainWindow<span class="operator">::</span>setupUi() { <span class="type"><a href="qtoolbar.html">QToolBar</a></span> <span class="operator">*</span>bar <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qtoolbar.html">QToolBar</a></span>; bar<span class="operator">-</span><span class="operator">></span>addAction(playAction); bar<span class="operator">-</span><span class="operator">></span>addAction(pauseAction); bar<span class="operator">-</span><span class="operator">></span>addAction(stopAction); seekSlider <span class="operator">=</span> <span class="keyword">new</span> Phonon<span class="operator">::</span>SeekSlider(<span class="keyword">this</span>); seekSlider<span class="operator">-</span><span class="operator">></span>setMediaObject(mediaObject); volumeSlider <span class="operator">=</span> <span class="keyword">new</span> Phonon<span class="operator">::</span>VolumeSlider(<span class="keyword">this</span>); volumeSlider<span class="operator">-</span><span class="operator">></span>setAudioOutput(audioOutput); volumeSlider<span class="operator">-</span><span class="operator">></span>setSizePolicy(<span class="type"><a href="qsizepolicy.html">QSizePolicy</a></span><span class="operator">::</span>Maximum<span class="operator">,</span> <span class="type"><a href="qsizepolicy.html">QSizePolicy</a></span><span class="operator">::</span>Maximum); <span class="type"><a href="qlabel.html">QLabel</a></span> <span class="operator">*</span>volumeLabel <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qlabel.html">QLabel</a></span>; volumeLabel<span class="operator">-</span><span class="operator">></span>setPixmap(<span class="type"><a href="qpixmap.html">QPixmap</a></span>(<span class="string">"images/volume.png"</span>)); <span class="type"><a href="qpalette.html">QPalette</a></span> palette; palette<span class="operator">.</span>setBrush(<span class="type"><a href="qpalette.html">QPalette</a></span><span class="operator">::</span>Light<span class="operator">,</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>darkGray); timeLcd <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qlcdnumber.html">QLCDNumber</a></span>; timeLcd<span class="operator">-</span><span class="operator">></span>setPalette(palette); <span class="type"><a href="qstringlist.html">QStringList</a></span> headers; headers <span class="operator"><</span><span class="operator"><</span> tr(<span class="string">"Title"</span>) <span class="operator"><</span><span class="operator"><</span> tr(<span class="string">"Artist"</span>) <span class="operator"><</span><span class="operator"><</span> tr(<span class="string">"Album"</span>) <span class="operator"><</span><span class="operator"><</span> tr(<span class="string">"Year"</span>); musicTable <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qtablewidget.html">QTableWidget</a></span>(<span class="number">0</span><span class="operator">,</span> <span class="number">4</span>); musicTable<span class="operator">-</span><span class="operator">></span>setHorizontalHeaderLabels(headers); musicTable<span class="operator">-</span><span class="operator">></span>setSelectionMode(<span class="type"><a href="qabstractitemview.html">QAbstractItemView</a></span><span class="operator">::</span>SingleSelection); musicTable<span class="operator">-</span><span class="operator">></span>setSelectionBehavior(<span class="type"><a href="qabstractitemview.html">QAbstractItemView</a></span><span class="operator">::</span>SelectRows); connect(musicTable<span class="operator">,</span> SIGNAL(cellPressed(<span class="type">int</span><span class="operator">,</span><span class="type">int</span>))<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> SLOT(tableClicked(<span class="type">int</span><span class="operator">,</span><span class="type">int</span>))); <span class="type"><a href="qhboxlayout.html">QHBoxLayout</a></span> <span class="operator">*</span>seekerLayout <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qhboxlayout.html">QHBoxLayout</a></span>; seekerLayout<span class="operator">-</span><span class="operator">></span>addWidget(seekSlider); seekerLayout<span class="operator">-</span><span class="operator">></span>addWidget(timeLcd); <span class="type"><a href="qhboxlayout.html">QHBoxLayout</a></span> <span class="operator">*</span>playbackLayout <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qhboxlayout.html">QHBoxLayout</a></span>; playbackLayout<span class="operator">-</span><span class="operator">></span>addWidget(bar); playbackLayout<span class="operator">-</span><span class="operator">></span>addStretch(); playbackLayout<span class="operator">-</span><span class="operator">></span>addWidget(volumeLabel); playbackLayout<span class="operator">-</span><span class="operator">></span>addWidget(volumeSlider); <span class="type"><a href="qvboxlayout.html">QVBoxLayout</a></span> <span class="operator">*</span>mainLayout <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qvboxlayout.html">QVBoxLayout</a></span>; mainLayout<span class="operator">-</span><span class="operator">></span>addWidget(musicTable); mainLayout<span class="operator">-</span><span class="operator">></span>addLayout(seekerLayout); mainLayout<span class="operator">-</span><span class="operator">></span>addLayout(playbackLayout); <span class="type"><a href="qwidget.html">QWidget</a></span> <span class="operator">*</span>widget <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qwidget.html">QWidget</a></span>; widget<span class="operator">-</span><span class="operator">></span>setLayout(mainLayout); setCentralWidget(widget); setWindowTitle(<span class="string">"Phonon Music Player"</span>); }</pre> </div> <!-- @@@phonon/qmusicplayer/mainwindow.cpp --> </div> </div> </div> <div class="ft"> <span></span> </div> </div> <div class="footer"> <p> <acronym title="Copyright">©</acronym> 2015 The Qt Company Ltd. 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