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<title>Qt Mobility 1.2: SlideShow Example</title>
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<a href="index.html" class="qtref"><span>QtMobility Reference Documentation</span></a>
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<h1 class="title">SlideShow Example</h1>
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<li><a href="slideshow-slideshow-cpp.html">slideshow/slideshow.cpp</a></li>
<li><a href="slideshow-slideshow-h.html">slideshow/slideshow.h</a></li>
<li><a href="slideshow-main-cpp.html">slideshow/main.cpp</a></li>
<li><a href="slideshow-slideshow-pro.html">slideshow/slideshow.pro</a></li>
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<p class="centerAlign"><img src="images/slideshow-img1.png" alt="" /></p><p>Slideshow displays a series of time delayed images after you select a source image directory to use. The folder button presents a list of three options: browse for a directory, load a playlist or enter a location.</p>
<p>This implementation uses a <a href="qmediaimageviewer.html">QMediaImageViewer</a> object for the image with a <a href="qvideowidget.html">QVideoWidget</a> used to do the display. Whether the the source is a browsed directory, a playlist file or a URL to a local or remote location the playlist object in Slideshow is updated with the file or multiple file locations.</p>
<pre class="cpp"> connect(imageViewer<span class="operator">,</span> SIGNAL(stateChanged(<span class="type"><a href="qmediaimageviewer.html">QMediaImageViewer</a></span><span class="operator">::</span>State))<span class="operator">,</span>
<span class="keyword">this</span><span class="operator">,</span> SLOT(stateChanged(<span class="type"><a href="qmediaimageviewer.html">QMediaImageViewer</a></span><span class="operator">::</span>State)));
playlist <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qmediaplaylist.html">QMediaPlaylist</a></span>;
playlist<span class="operator">-</span><span class="operator">></span>setMediaObject(imageViewer);</pre>
<p>We create a <a href="qvideowidget.html">QVideoWidget</a> to display the viewer and add it to the dialog.</p>
<pre class="cpp"> <span class="type"><a href="qvideowidget.html">QVideoWidget</a></span> <span class="operator">*</span>videoWidget <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qvideowidget.html">QVideoWidget</a></span>;
videoWidget<span class="operator">-</span><span class="operator">></span>setMediaObject(imageViewer);</pre>
<pre class="cpp"> layout<span class="operator">-</span><span class="operator">></span>addWidget(videoWidget<span class="operator">,</span> <span class="type"><a href="http://qt.nokia.com/doc/4.7/qt.html">Qt</a></span><span class="operator">::</span>AlignCenter);</pre>
<p>The timeout between images is set by changing the timeout property in <a href="qmediaimageviewer.html">QMediaImageViewer</a> which is in milliseconds. So to change the timeout to five seconds</p>
<pre class="cpp"> imageViewer<span class="operator">-</span><span class="operator">></span>setTimeout( <span class="number">5000</span> );</pre>
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Mageia
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