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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/1999/REC-html401-19991224/loose.dtd">
<html>
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<title>DrawableBroadcaster - /src/SimplePres.java</title>
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<a href="http://developer.apple.com/">ADC Home</a> > <a href="../../referencelibrary/index.html">Reference Library</a> > <a href="../../samplecode/index.html">Sample Code</a> > <a href="../../samplecode/LegacyTechnologies/index.html">Legacy Documents</a> > <a href="../../samplecode/LegacyTechnologies/idxQuickTime-date.html">QuickTime</a> > <A HREF="javascript:location.replace('index.html');">DrawableBroadcaster</A> >
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<div style="width:100%; position:fixed;"><div align="center" id="watermark" style="position: relative; margin-left:auto; margin-right:auto; z-index:20; width:500px;"><div class="legacybox"><h1>Legacy Document<span class=closebutton><a href="javascript:closeWatermark()"><img src="../../images/closebutton.png" width="14" height="14" border="0" alt="close button"></a></span></h1>
<p><strong>Important: </strong>This document is part of the Legacy section of the ADC Reference Library. This information should not be used for new development.</p>
<div class="reflibtopic">
<p>Current information on this Reference Library topic can be found here:</p>
<ul>
<li><a href="http://developer.apple.com/referencelibrary/QuickTime/idxJava-date.html" target="_blank">QuickTime > Java</a></li>
</ul>
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<td><h1><div id="pagehead">DrawableBroadcaster</div></h1></td>
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<h2>/src/SimplePres.java</h2>
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<p><strong>View Source Code:</strong>
<select name="gotop" onChange="JumpToNewPage();" style="width:340px"><option selected value="ingnore">Select File</option>
<option value="listing1.html">/README.txt</option>
<option value="listing2.html">/src/BroadcastDrawer.java</option>
<option value="listing3.html">/src/SimplePres.java</option>
<option value="listing4.html">/src/StatDrawer.java</option></select>
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<p><strong><a href="DrawableBroadcaster.zip">Download Sample</a></strong> (“DrawableBroadcaster.zip”, 30.3K)<BR>
<strong><a href="DrawableBroadcaster.dmg">Download Sample</a></strong> (“DrawableBroadcaster.dmg”, 88.8K)</p>
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<p><strong><a href="#">Download Sample</a></strong> (“filename.sit”, 500K)</p>
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<!--googleon: index -->
<pre class="sourcecodebox">/*
* QuickTime for Java SDK Sample Code
*
* Usage subject to restrictions in SDK License Agreement
* Copyright: © 2000 Apple Computer, Inc.
*/
import quicktime.io.*;
import quicktime.app.display.*;
import quicktime.app.sg.*;
import quicktime.streaming.*;
import quicktime.*;
import quicktime.std.*;
import quicktime.qd.*;
import quicktime.app.anim.*;
/* SimplePres- this class uses a simple approach to creating a Broadcaster (Presentation) from a specified QT File
* object. It also uses the utility class Presentation Drawer to handle drawing operations within the QTCanvas */
public class SimplePres {
public static final int kDefaultPresTimeScale = 600; // the default time scale of the Presentation
/* Constructor- creates a new presentation object from a file and a new Presentation drawer */
SimplePres (QTFile file, QTCanvas canvas) throws QTException {
newPresFromFile (file);
pDrawer = new PresentationDrawer(pres);
QDGraphics gw = new QDGraphics( new QDRect( BroadcastDrawer.WIDTH, BroadcastDrawer.HEIGHT ));
showSettings(); // shows the settings dialog
}
/* Creates a new presentation object from a QTFile using default settings for the MediaParams and PresParams */
public void newPresFromFile( QTFile f ) {
try {
MediaParams medParams = new MediaParams();
PresParams presParams = new PresParams( kDefaultPresTimeScale, QTSConstants.kQTSSendMediaFlag |
QTSConstants.kQTSAutoModeFlag | QTSConstants.kQTSDontShowStatusFlag, medParams );
pres = Presentation.fromFile( f, presParams );
}
catch (QTException e) {
e.printStackTrace();
}
}
/** Shows the settings dialog that allows you to specify the input source, codecs, and packetizer
* for the broadcast and prerolls the broadcast
*/
public void showSettings( ) {
try {
SettingsDialog dialog = new SettingsDialog(pres);
pres.preroll();
} catch (QTException e) {
e.printStackTrace();
}
}
/* starts the broadcast and the drawing task */
public void startBroadcast() {
try {
pres.start();
pDrawer.startTasking();
} catch (QTException e) {
e.printStackTrace();
}
}
/* stops the broadcast and the drawing task */
public void stopBroadcast() {
try {
pres.stop();
pDrawer.stopTasking();
} catch (QTException e) {
e.printStackTrace();
}
}
/* ---- Protected data members ---- */
PresentationDrawer pDrawer = null;
Presentation pres = null;
}</pre>
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