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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">movieplayer.cpp Example File</h1> <span class="small-subtitle">widgets/movie/movieplayer.cpp</span> <!-- $$$widgets/movie/movieplayer.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 "movieplayer.h"</span> MoviePlayer<span class="operator">::</span>MoviePlayer(<span class="type"><a href="qwidget.html">QWidget</a></span> <span class="operator">*</span>parent) : <span class="type"><a href="qwidget.html">QWidget</a></span>(parent) { movie <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qmovie.html">QMovie</a></span>(<span class="keyword">this</span>); movie<span class="operator">-</span><span class="operator">></span>setCacheMode(<span class="type"><a href="qmovie.html">QMovie</a></span><span class="operator">::</span>CacheAll); movieLabel <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qlabel.html">QLabel</a></span>(tr(<span class="string">"No movie loaded"</span>)); movieLabel<span class="operator">-</span><span class="operator">></span>setAlignment(<span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>AlignCenter); movieLabel<span class="operator">-</span><span class="operator">></span>setSizePolicy(<span class="type"><a href="qsizepolicy.html">QSizePolicy</a></span><span class="operator">::</span>Ignored<span class="operator">,</span> <span class="type"><a href="qsizepolicy.html">QSizePolicy</a></span><span class="operator">::</span>Ignored); movieLabel<span class="operator">-</span><span class="operator">></span>setBackgroundRole(<span class="type"><a href="qpalette.html">QPalette</a></span><span class="operator">::</span>Dark); movieLabel<span class="operator">-</span><span class="operator">></span>setAutoFillBackground(<span class="keyword">true</span>); currentMovieDirectory <span class="operator">=</span> <span class="string">"movies"</span>; createControls(); createButtons(); connect(movie<span class="operator">,</span> SIGNAL(frameChanged(<span class="type">int</span>))<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> SLOT(updateFrameSlider())); connect(movie<span class="operator">,</span> SIGNAL(stateChanged(<span class="type"><a href="qmovie.html">QMovie</a></span><span class="operator">::</span>MovieState))<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> SLOT(updateButtons())); connect(fitCheckBox<span class="operator">,</span> SIGNAL(clicked())<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> SLOT(fitToWindow())); connect(frameSlider<span class="operator">,</span> SIGNAL(valueChanged(<span class="type">int</span>))<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> SLOT(goToFrame(<span class="type">int</span>))); connect(speedSpinBox<span class="operator">,</span> SIGNAL(valueChanged(<span class="type">int</span>))<span class="operator">,</span> movie<span class="operator">,</span> SLOT(setSpeed(<span class="type">int</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(movieLabel); mainLayout<span class="operator">-</span><span class="operator">></span>addLayout(controlsLayout); mainLayout<span class="operator">-</span><span class="operator">></span>addLayout(buttonsLayout); setLayout(mainLayout); updateFrameSlider(); updateButtons(); setWindowTitle(tr(<span class="string">"Movie Player"</span>)); resize(<span class="number">400</span><span class="operator">,</span> <span class="number">400</span>); } <span class="type">void</span> MoviePlayer<span class="operator">::</span>open() { <span class="type"><a href="qstring.html">QString</a></span> fileName <span class="operator">=</span> <span class="type"><a href="qfiledialog.html">QFileDialog</a></span><span class="operator">::</span>getOpenFileName(<span class="keyword">this</span><span class="operator">,</span> tr(<span class="string">"Open a Movie"</span>)<span class="operator">,</span> currentMovieDirectory); <span class="keyword">if</span> (<span class="operator">!</span>fileName<span class="operator">.</span>isEmpty()) openFile(fileName); } <span class="type">void</span> MoviePlayer<span class="operator">::</span>openFile(<span class="keyword">const</span> <span class="type"><a href="qstring.html">QString</a></span> <span class="operator">&</span>fileName) { currentMovieDirectory <span class="operator">=</span> <span class="type"><a href="qfileinfo.html">QFileInfo</a></span>(fileName)<span class="operator">.</span>path(); movie<span class="operator">-</span><span class="operator">></span>stop(); movieLabel<span class="operator">-</span><span class="operator">></span>setMovie(movie); movie<span class="operator">-</span><span class="operator">></span>setFileName(fileName); movie<span class="operator">-</span><span class="operator">></span>start(); updateFrameSlider(); updateButtons(); } <span class="type">void</span> MoviePlayer<span class="operator">::</span>goToFrame(<span class="type">int</span> frame) { movie<span class="operator">-</span><span class="operator">></span>jumpToFrame(frame); } <span class="type">void</span> MoviePlayer<span class="operator">::</span>fitToWindow() { movieLabel<span class="operator">-</span><span class="operator">></span>setScaledContents(fitCheckBox<span class="operator">-</span><span class="operator">></span>isChecked()); } <span class="type">void</span> MoviePlayer<span class="operator">::</span>updateFrameSlider() { <span class="type">bool</span> hasFrames <span class="operator">=</span> (movie<span class="operator">-</span><span class="operator">></span>currentFrameNumber() <span class="operator">></span><span class="operator">=</span> <span class="number">0</span>); <span class="keyword">if</span> (hasFrames) { <span class="keyword">if</span> (movie<span class="operator">-</span><span class="operator">></span>frameCount() <span class="operator">></span> <span class="number">0</span>) { frameSlider<span class="operator">-</span><span class="operator">></span>setMaximum(movie<span class="operator">-</span><span class="operator">></span>frameCount() <span class="operator">-</span> <span class="number">1</span>); } <span class="keyword">else</span> { <span class="keyword">if</span> (movie<span class="operator">-</span><span class="operator">></span>currentFrameNumber() <span class="operator">></span> frameSlider<span class="operator">-</span><span class="operator">></span>maximum()) frameSlider<span class="operator">-</span><span class="operator">></span>setMaximum(movie<span class="operator">-</span><span class="operator">></span>currentFrameNumber()); } frameSlider<span class="operator">-</span><span class="operator">></span>setValue(movie<span class="operator">-</span><span class="operator">></span>currentFrameNumber()); } <span class="keyword">else</span> { frameSlider<span class="operator">-</span><span class="operator">></span>setMaximum(<span class="number">0</span>); } frameLabel<span class="operator">-</span><span class="operator">></span>setEnabled(hasFrames); frameSlider<span class="operator">-</span><span class="operator">></span>setEnabled(hasFrames); } <span class="type">void</span> MoviePlayer<span class="operator">::</span>updateButtons() { playButton<span class="operator">-</span><span class="operator">></span>setEnabled(movie<span class="operator">-</span><span class="operator">></span>isValid() <span class="operator">&</span><span class="operator">&</span> movie<span class="operator">-</span><span class="operator">></span>frameCount() <span class="operator">!</span><span class="operator">=</span> <span class="number">1</span> <span class="operator">&</span><span class="operator">&</span> movie<span class="operator">-</span><span class="operator">></span>state() <span class="operator">=</span><span class="operator">=</span> <span class="type"><a href="qmovie.html">QMovie</a></span><span class="operator">::</span>NotRunning); pauseButton<span class="operator">-</span><span class="operator">></span>setEnabled(movie<span class="operator">-</span><span class="operator">></span>state() <span class="operator">!</span><span class="operator">=</span> <span class="type"><a href="qmovie.html">QMovie</a></span><span class="operator">::</span>NotRunning); pauseButton<span class="operator">-</span><span class="operator">></span>setChecked(movie<span class="operator">-</span><span class="operator">></span>state() <span class="operator">=</span><span class="operator">=</span> <span class="type"><a href="qmovie.html">QMovie</a></span><span class="operator">::</span>Paused); stopButton<span class="operator">-</span><span class="operator">></span>setEnabled(movie<span class="operator">-</span><span class="operator">></span>state() <span class="operator">!</span><span class="operator">=</span> <span class="type"><a href="qmovie.html">QMovie</a></span><span class="operator">::</span>NotRunning); } <span class="type">void</span> MoviePlayer<span class="operator">::</span>createControls() { fitCheckBox <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qcheckbox.html">QCheckBox</a></span>(tr(<span class="string">"Fit to Window"</span>)); frameLabel <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qlabel.html">QLabel</a></span>(tr(<span class="string">"Current frame:"</span>)); frameSlider <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qslider.html">QSlider</a></span>(<span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>Horizontal); frameSlider<span class="operator">-</span><span class="operator">></span>setTickPosition(<span class="type"><a href="qslider.html">QSlider</a></span><span class="operator">::</span>TicksBelow); frameSlider<span class="operator">-</span><span class="operator">></span>setTickInterval(<span class="number">10</span>); speedLabel <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qlabel.html">QLabel</a></span>(tr(<span class="string">"Speed:"</span>)); speedSpinBox <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qspinbox.html">QSpinBox</a></span>; speedSpinBox<span class="operator">-</span><span class="operator">></span>setRange(<span class="number">1</span><span class="operator">,</span> <span class="number">9999</span>); speedSpinBox<span class="operator">-</span><span class="operator">></span>setValue(<span class="number">100</span>); speedSpinBox<span class="operator">-</span><span class="operator">></span>setSuffix(tr(<span class="string">"%"</span>)); controlsLayout <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qgridlayout.html">QGridLayout</a></span>; controlsLayout<span class="operator">-</span><span class="operator">></span>addWidget(fitCheckBox<span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="number">1</span><span class="operator">,</span> <span class="number">2</span>); controlsLayout<span class="operator">-</span><span class="operator">></span>addWidget(frameLabel<span class="operator">,</span> <span class="number">1</span><span class="operator">,</span> <span class="number">0</span>); controlsLayout<span class="operator">-</span><span class="operator">></span>addWidget(frameSlider<span class="operator">,</span> <span class="number">1</span><span class="operator">,</span> <span class="number">1</span><span class="operator">,</span> <span class="number">1</span><span class="operator">,</span> <span class="number">2</span>); controlsLayout<span class="operator">-</span><span class="operator">></span>addWidget(speedLabel<span class="operator">,</span> <span class="number">2</span><span class="operator">,</span> <span class="number">0</span>); controlsLayout<span class="operator">-</span><span class="operator">></span>addWidget(speedSpinBox<span class="operator">,</span> <span class="number">2</span><span class="operator">,</span> <span class="number">1</span>); } <span class="type">void</span> MoviePlayer<span class="operator">::</span>createButtons() { <span class="type"><a href="qsize.html">QSize</a></span> iconSize(<span class="number">36</span><span class="operator">,</span> <span class="number">36</span>); openButton <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qtoolbutton.html">QToolButton</a></span>; openButton<span class="operator">-</span><span class="operator">></span>setIcon(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_DialogOpenButton)); openButton<span class="operator">-</span><span class="operator">></span>setIconSize(iconSize); openButton<span class="operator">-</span><span class="operator">></span>setToolTip(tr(<span class="string">"Open File"</span>)); connect(openButton<span class="operator">,</span> SIGNAL(clicked())<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> SLOT(open())); playButton <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qtoolbutton.html">QToolButton</a></span>; playButton<span class="operator">-</span><span class="operator">></span>setIcon(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)); playButton<span class="operator">-</span><span class="operator">></span>setIconSize(iconSize); playButton<span class="operator">-</span><span class="operator">></span>setToolTip(tr(<span class="string">"Play"</span>)); connect(playButton<span class="operator">,</span> SIGNAL(clicked())<span class="operator">,</span> movie<span class="operator">,</span> SLOT(start())); pauseButton <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qtoolbutton.html">QToolButton</a></span>; pauseButton<span class="operator">-</span><span class="operator">></span>setCheckable(<span class="keyword">true</span>); pauseButton<span class="operator">-</span><span class="operator">></span>setIcon(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)); pauseButton<span class="operator">-</span><span class="operator">></span>setIconSize(iconSize); pauseButton<span class="operator">-</span><span class="operator">></span>setToolTip(tr(<span class="string">"Pause"</span>)); connect(pauseButton<span class="operator">,</span> SIGNAL(clicked(<span class="type">bool</span>))<span class="operator">,</span> movie<span class="operator">,</span> SLOT(setPaused(<span class="type">bool</span>))); stopButton <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qtoolbutton.html">QToolButton</a></span>; stopButton<span class="operator">-</span><span class="operator">></span>setIcon(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)); stopButton<span class="operator">-</span><span class="operator">></span>setIconSize(iconSize); stopButton<span class="operator">-</span><span class="operator">></span>setToolTip(tr(<span class="string">"Stop"</span>)); connect(stopButton<span class="operator">,</span> SIGNAL(clicked())<span class="operator">,</span> movie<span class="operator">,</span> SLOT(stop())); quitButton <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qtoolbutton.html">QToolButton</a></span>; quitButton<span class="operator">-</span><span class="operator">></span>setIcon(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_DialogCloseButton)); quitButton<span class="operator">-</span><span class="operator">></span>setIconSize(iconSize); quitButton<span class="operator">-</span><span class="operator">></span>setToolTip(tr(<span class="string">"Quit"</span>)); connect(quitButton<span class="operator">,</span> SIGNAL(clicked())<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> SLOT(close())); buttonsLayout <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qhboxlayout.html">QHBoxLayout</a></span>; buttonsLayout<span class="operator">-</span><span class="operator">></span>addStretch(); buttonsLayout<span class="operator">-</span><span class="operator">></span>addWidget(openButton); buttonsLayout<span class="operator">-</span><span class="operator">></span>addWidget(playButton); buttonsLayout<span class="operator">-</span><span class="operator">></span>addWidget(pauseButton); buttonsLayout<span class="operator">-</span><span class="operator">></span>addWidget(stopButton); buttonsLayout<span class="operator">-</span><span class="operator">></span>addWidget(quitButton); buttonsLayout<span class="operator">-</span><span class="operator">></span>addStretch(); }</pre> </div> <!-- @@@widgets/movie/movieplayer.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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