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<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:
**
** &quot;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
** &quot;AS IS&quot; 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.&quot;
**
** $QT_END_LICENSE$
**
***************************************************************************/</span>
<span class="preprocessor">#include &lt;QtGui&gt;</span>
<span class="preprocessor">#include &quot;mainwindow.h&quot;</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">&gt;</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">&gt;</span>display(<span class="string">&quot;00:00&quot;</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">&quot;Select Music Files&quot;</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">&gt;</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">&quot;About Music Player&quot;</span>)<span class="operator">,</span>
tr(<span class="string">&quot;The Music Player example shows how to use Phonon - the multimedia&quot;</span>
<span class="string">&quot; framework that comes with Qt - to create a simple music player.&quot;</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">&gt;</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">&quot;Fatal Error&quot;</span>)<span class="operator">,</span>
mediaObject<span class="operator">-</span><span class="operator">&gt;</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">&quot;Error&quot;</span>)<span class="operator">,</span>
mediaObject<span class="operator">-</span><span class="operator">&gt;</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">&gt;</span>setEnabled(<span class="keyword">false</span>);
pauseAction<span class="operator">-</span><span class="operator">&gt;</span>setEnabled(<span class="keyword">true</span>);
stopAction<span class="operator">-</span><span class="operator">&gt;</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">&gt;</span>setEnabled(<span class="keyword">false</span>);
playAction<span class="operator">-</span><span class="operator">&gt;</span>setEnabled(<span class="keyword">true</span>);
pauseAction<span class="operator">-</span><span class="operator">&gt;</span>setEnabled(<span class="keyword">false</span>);
timeLcd<span class="operator">-</span><span class="operator">&gt;</span>display(<span class="string">&quot;00:00&quot;</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">&gt;</span>setEnabled(<span class="keyword">false</span>);
stopAction<span class="operator">-</span><span class="operator">&gt;</span>setEnabled(<span class="keyword">true</span>);
playAction<span class="operator">-</span><span class="operator">&gt;</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">&gt;</span>display(displayTime<span class="operator">.</span>toString(<span class="string">&quot;mm:ss&quot;</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">&gt;</span>state() <span class="operator">=</span><span class="operator">=</span> Phonon<span class="operator">::</span>PlayingState;
mediaObject<span class="operator">-</span><span class="operator">&gt;</span>stop();
mediaObject<span class="operator">-</span><span class="operator">&gt;</span>clearQueue();
<span class="keyword">if</span> (row <span class="operator">&gt;</span><span class="operator">=</span> sources<span class="operator">.</span>size())
<span class="keyword">return</span>;
mediaObject<span class="operator">-</span><span class="operator">&gt;</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">&gt;</span>play();
<span class="keyword">else</span>
mediaObject<span class="operator">-</span><span class="operator">&gt;</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">&amp;</span>source)
{
musicTable<span class="operator">-</span><span class="operator">&gt;</span>selectRow(sources<span class="operator">.</span>indexOf(source));
timeLcd<span class="operator">-</span><span class="operator">&gt;</span>display(<span class="string">&quot;00:00&quot;</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">&quot;Error opening files&quot;</span>)<span class="operator">,</span>
metaInformationResolver<span class="operator">-</span><span class="operator">&gt;</span>errorString());
<span class="keyword">while</span> (<span class="operator">!</span>sources<span class="operator">.</span>isEmpty() <span class="operator">&amp;</span><span class="operator">&amp;</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">&gt;</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">&amp;</span><span class="operator">&amp;</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">&gt;</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">&lt;</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">&gt;</span> metaData <span class="operator">=</span> metaInformationResolver<span class="operator">-</span><span class="operator">&gt;</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">&quot;TITLE&quot;</span>);
<span class="keyword">if</span> (title <span class="operator">=</span><span class="operator">=</span> <span class="string">&quot;&quot;</span>)
title <span class="operator">=</span> metaInformationResolver<span class="operator">-</span><span class="operator">&gt;</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">&gt;</span>setFlags(titleItem<span class="operator">-</span><span class="operator">&gt;</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">&quot;ARTIST&quot;</span>));
artistItem<span class="operator">-</span><span class="operator">&gt;</span>setFlags(artistItem<span class="operator">-</span><span class="operator">&gt;</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">&quot;ALBUM&quot;</span>));
albumItem<span class="operator">-</span><span class="operator">&gt;</span>setFlags(albumItem<span class="operator">-</span><span class="operator">&gt;</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">&quot;DATE&quot;</span>));
yearItem<span class="operator">-</span><span class="operator">&gt;</span>setFlags(yearItem<span class="operator">-</span><span class="operator">&gt;</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">&gt;</span>rowCount();
musicTable<span class="operator">-</span><span class="operator">&gt;</span>insertRow(currentRow);
musicTable<span class="operator">-</span><span class="operator">&gt;</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">&gt;</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">&gt;</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">&gt;</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">&gt;</span>selectedItems()<span class="operator">.</span>isEmpty()) {
musicTable<span class="operator">-</span><span class="operator">&gt;</span>selectRow(<span class="number">0</span>);
mediaObject<span class="operator">-</span><span class="operator">&gt;</span>setCurrentSource(metaInformationResolver<span class="operator">-</span><span class="operator">&gt;</span>currentSource());
}
Phonon<span class="operator">::</span>MediaSource source <span class="operator">=</span> metaInformationResolver<span class="operator">-</span><span class="operator">&gt;</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">&gt;</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">&gt;</span> index) {
metaInformationResolver<span class="operator">-</span><span class="operator">&gt;</span>setCurrentSource(sources<span class="operator">.</span>at(index));
}
<span class="keyword">else</span> {
musicTable<span class="operator">-</span><span class="operator">&gt;</span>resizeColumnsToContents();
<span class="keyword">if</span> (musicTable<span class="operator">-</span><span class="operator">&gt;</span>columnWidth(<span class="number">0</span>) <span class="operator">&gt;</span> <span class="number">300</span>)
musicTable<span class="operator">-</span><span class="operator">&gt;</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">&gt;</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">&gt;</span> index) {
mediaObject<span class="operator">-</span><span class="operator">&gt;</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">&gt;</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">&quot;Play&quot;</span>)<span class="operator">,</span> <span class="keyword">this</span>);
playAction<span class="operator">-</span><span class="operator">&gt;</span>setShortcut(tr(<span class="string">&quot;Ctrl+P&quot;</span>));
playAction<span class="operator">-</span><span class="operator">&gt;</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">&gt;</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">&quot;Pause&quot;</span>)<span class="operator">,</span> <span class="keyword">this</span>);
pauseAction<span class="operator">-</span><span class="operator">&gt;</span>setShortcut(tr(<span class="string">&quot;Ctrl+A&quot;</span>));
pauseAction<span class="operator">-</span><span class="operator">&gt;</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">&gt;</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">&quot;Stop&quot;</span>)<span class="operator">,</span> <span class="keyword">this</span>);
stopAction<span class="operator">-</span><span class="operator">&gt;</span>setShortcut(tr(<span class="string">&quot;Ctrl+S&quot;</span>));
stopAction<span class="operator">-</span><span class="operator">&gt;</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">&gt;</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">&quot;Next&quot;</span>)<span class="operator">,</span> <span class="keyword">this</span>);
nextAction<span class="operator">-</span><span class="operator">&gt;</span>setShortcut(tr(<span class="string">&quot;Ctrl+N&quot;</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">&gt;</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">&quot;Previous&quot;</span>)<span class="operator">,</span> <span class="keyword">this</span>);
previousAction<span class="operator">-</span><span class="operator">&gt;</span>setShortcut(tr(<span class="string">&quot;Ctrl+R&quot;</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">&quot;Add &amp;Files&quot;</span>)<span class="operator">,</span> <span class="keyword">this</span>);
addFilesAction<span class="operator">-</span><span class="operator">&gt;</span>setShortcut(tr(<span class="string">&quot;Ctrl+F&quot;</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">&quot;E&amp;xit&quot;</span>)<span class="operator">,</span> <span class="keyword">this</span>);
exitAction<span class="operator">-</span><span class="operator">&gt;</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">&quot;A&amp;bout&quot;</span>)<span class="operator">,</span> <span class="keyword">this</span>);
aboutAction<span class="operator">-</span><span class="operator">&gt;</span>setShortcut(tr(<span class="string">&quot;Ctrl+B&quot;</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">&quot;About &amp;Qt&quot;</span>)<span class="operator">,</span> <span class="keyword">this</span>);
aboutQtAction<span class="operator">-</span><span class="operator">&gt;</span>setShortcut(tr(<span class="string">&quot;Ctrl+Q&quot;</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">&gt;</span>addMenu(tr(<span class="string">&quot;&amp;File&quot;</span>));
fileMenu<span class="operator">-</span><span class="operator">&gt;</span>addAction(addFilesAction);
fileMenu<span class="operator">-</span><span class="operator">&gt;</span>addSeparator();
fileMenu<span class="operator">-</span><span class="operator">&gt;</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">&gt;</span>addMenu(tr(<span class="string">&quot;&amp;Help&quot;</span>));
aboutMenu<span class="operator">-</span><span class="operator">&gt;</span>addAction(aboutAction);
aboutMenu<span class="operator">-</span><span class="operator">&gt;</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">&gt;</span>addAction(playAction);
bar<span class="operator">-</span><span class="operator">&gt;</span>addAction(pauseAction);
bar<span class="operator">-</span><span class="operator">&gt;</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">&gt;</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">&gt;</span>setAudioOutput(audioOutput);
volumeSlider<span class="operator">-</span><span class="operator">&gt;</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">&gt;</span>setPixmap(<span class="type"><a href="qpixmap.html">QPixmap</a></span>(<span class="string">&quot;images/volume.png&quot;</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">&gt;</span>setPalette(palette);
<span class="type"><a href="qstringlist.html">QStringList</a></span> headers;
headers <span class="operator">&lt;</span><span class="operator">&lt;</span> tr(<span class="string">&quot;Title&quot;</span>) <span class="operator">&lt;</span><span class="operator">&lt;</span> tr(<span class="string">&quot;Artist&quot;</span>) <span class="operator">&lt;</span><span class="operator">&lt;</span> tr(<span class="string">&quot;Album&quot;</span>) <span class="operator">&lt;</span><span class="operator">&lt;</span> tr(<span class="string">&quot;Year&quot;</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">&gt;</span>setHorizontalHeaderLabels(headers);
musicTable<span class="operator">-</span><span class="operator">&gt;</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">&gt;</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">&gt;</span>addWidget(seekSlider);
seekerLayout<span class="operator">-</span><span class="operator">&gt;</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">&gt;</span>addWidget(bar);
playbackLayout<span class="operator">-</span><span class="operator">&gt;</span>addStretch();
playbackLayout<span class="operator">-</span><span class="operator">&gt;</span>addWidget(volumeLabel);
playbackLayout<span class="operator">-</span><span class="operator">&gt;</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">&gt;</span>addWidget(musicTable);
mainLayout<span class="operator">-</span><span class="operator">&gt;</span>addLayout(seekerLayout);
mainLayout<span class="operator">-</span><span class="operator">&gt;</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">&gt;</span>setLayout(mainLayout);
setCentralWidget(widget);
setWindowTitle(<span class="string">&quot;Phonon Music Player&quot;</span>);
}</pre>
</div>
<!-- @@@phonon/qmusicplayer/mainwindow.cpp -->
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