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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>
<head>
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<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<link rel="home" href="http://developer.apple.com/">
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<link rel="stylesheet" type="text/css" href="../../documentation/css/adcstyle.css" title="fonts">
<script language="JavaScript" src="../../documentation/js/adc.js" type="text/javascript"></script>
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<title>MediaPresenter - /src/MediaPresenter.java</title>
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<script language="JavaScript">
function JumpToNewPage() {
window.location=document.scpopupmenu.gotop.value;
return true;
}
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<center>
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<td><img width="340" height="10" src="images/1dot.gif" alt=""></td>
</tr>
<tr valign="middle">
<td align="left" colspan="2">
<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');">MediaPresenter</A> >
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<td colspan="2" scope="row"><img width="680" height="35" src="images/1dot.gif" alt=""></td>
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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>
</div>
</div></div></div>
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<table width="680" border="0" cellpadding="0" cellspacing="0">
<tr align="left" valign="top">
<td><h1><div id="pagehead">MediaPresenter</div></h1></td>
</tr>
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<td id="scdetails">
<h2>/src/MediaPresenter.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/MediaPresenter.java</option></select>
</p>
</form>
<p><strong><a href="MediaPresenter.zip">Download Sample</a></strong> (“MediaPresenter.zip”, 26.4K)<BR>
<strong><a href="MediaPresenter.dmg">Download Sample</a></strong> (“MediaPresenter.dmg”, 84.6K)</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: © 1996-1999 Apple Computer, Inc.
*/
import java.awt.*;
import java.awt.event.*;
import java.io.*;
import quicktime.qd.*;
import quicktime.*;
import quicktime.io.*;
import quicktime.std.*;
import quicktime.std.movies.*;
import quicktime.std.image.*;
import quicktime.app.QTFactory;
import quicktime.app.display.*;
import quicktime.app.players.*;
import quicktime.app.image.*;
import quicktime.app.actions.*;
import quicktime.app.anim.*;
public class MediaPresenter extends Frame implements StdQTConstants {
public static void main (String args[]) {
try {
QTSession.open();
MediaPresenter gd = new MediaPresenter("QT in Java");
gd.pack();
gd.show();
gd.toFront();
} catch (Exception e) {
e.printStackTrace();
QTSession.close();
}
}
MediaPresenter (String title) throws Exception {
super (title);
setBackground (Color.white);
QTCanvas myQTCanvas = new QTCanvas ();
add ("Center", myQTCanvas);
add ("North", new ControlPanel (this));
addWindowListener(new WindowAdapter () {
public void windowClosing (WindowEvent e) {
QTSession.close();
dispose();
}
public void windowClosed (WindowEvent e) {
System.exit(0);
}
});
int kWidth = 300, kHeight = 300;
QDDimension d = new QDDimension (kWidth, kHeight);
groupDrawer = new DirectGroup (d, QDColor.white);
myQTCanvas.setClient (groupDrawer, true);
groupDrawer.getTimer().setRate (1);
}
DirectGroup groupDrawer;
QTDrawable myDrawer;
void stopPlayer () throws QTException {
if (myDrawer instanceof Playable)
((Playable)myDrawer).setRate(0);
}
void openFromURL (String url) throws QTException {
QTDrawable d = QTFactory.makeDrawable (url);
groupDrawer.removeMember (myDrawer);
myDrawer = null;
groupDrawer.addMember (d);
myDrawer = d;
}
private void redrawDrawer () throws QTException {
groupDrawer.memberChanged (myDrawer);
if (myDrawer instanceof QTPlayer) {
((QTPlayer)myDrawer).getMovieController().movieChanged();
}
groupDrawer.redraw (null);
}
boolean hasDrawer () { return myDrawer != null; }
void reset () throws QTException {
myDrawer.setMatrix (new Matrix());
redrawDrawer ();
}
void setScaling (float scale) throws QTException {
Matrix mat = myDrawer.getMatrix();
mat.scale (scale, scale, 0, 0);
myDrawer.setMatrix (mat);
redrawDrawer ();
}
void rotateDrawer () throws QTException {
Matrix mat = myDrawer.getMatrix();
// rotate 90 degress and keep origin at 0,0 of group
// this rotation bounds stuff ONLY works currently
// with 90 degree rotations - there are some bounds stuff
// on the matrix class which WILL be added to this code
// so that any rotation can be done and the result positioned at top / left
float rx = 0;
float ry = 0;
mat.rotate (90, rx, ry);
if (myDrawer instanceof QTPlayer) {
myDrawer.setMatrix (mat);
myDrawer.setLocation (0, 0);
} else {
QDDimension d = myDrawer.getOriginalSize();
if (mat.getSx() == 0) {
if (mat.getB() > 0) {
float xLoc = mat.getC() * -d.getHeight();
mat.setTx (xLoc);
mat.setTy (0);
} else {
float yLoc = mat.getB() * -d.getWidth();
mat.setTy (yLoc);
mat.setTx (0);
}
} else {
if (mat.getSx () > 0)
mat.setTx (0);
else
mat.setTx (d.getWidth() * Math.abs (mat.getSx()));
if (mat.getSy () > 0)
mat.setTy (0);
else
mat.setTy (d.getHeight()* Math.abs (mat.getSy()));
}
myDrawer.setMatrix (mat);
}
redrawDrawer ();
}
}
class ControlPanel extends Panel {
ControlPanel (MediaPresenter mp) {
myPresenter = mp;
openButton.addActionListener (new ActionListener () {
public void actionPerformed(ActionEvent event) {
// creat a movie through the file-open dialog of QT
try {
myPresenter.stopPlayer();
QTFile qtf = QTFile.standardGetFilePreview(QTFile.kStandardQTFileTypes);
myPresenter.openFromURL ("file://" + qtf.getPath());
enableButtons ();
} catch (QTException e) {
if (e.errorCode() != Errors.userCanceledErr)
e.printStackTrace();
}
}
});
rotateButton.addActionListener (new ActionListener () {
public void actionPerformed(ActionEvent event) {
try {
myPresenter.rotateDrawer ();
} catch (QTException e) {
// with rotated members of a direct group
// a QuickDraw bug will occassionally throw
// this error - it can be ignored
if (e.errorCode() != Errors.rgnTooBigErr)
e.printStackTrace();
}
}
});
scaleField.addActionListener (new ActionListener () {
public void actionPerformed (ActionEvent event) {
float f = Float.valueOf (new String (event.getActionCommand())).floatValue();
try {
myPresenter.setScaling (f);
} catch (QTException e) {
e.printStackTrace();
}
}
});
resetButton.addActionListener (new ActionListener () {
public void actionPerformed (ActionEvent event) {
try {
myPresenter.reset ();
} catch (QTException e) {
e.printStackTrace();
}
}
});
add (openButton);
add (rotateButton);
add (scaleLabel);
add (scaleField);
add (resetButton);
enableButtons();
}
void enableButtons () {
rotateButton.setEnabled (myPresenter.hasDrawer());
scaleField.setEnabled (myPresenter.hasDrawer());
resetButton.setEnabled (myPresenter.hasDrawer());
}
public Dimension getPreferredSize () {
return new Dimension (80, 80);
}
MediaPresenter myPresenter;
Button openButton = new Button ("Open File...");
Button rotateButton = new Button ("Rotate");
Button resetButton = new Button ("Reset");
Label scaleLabel = new Label ("Scale");
TextField scaleField = new TextField (8);
}</pre>
<!--googleoff: index -->
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<th>Did this document help you?</th>
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<td>
<div style="margin-bottom: 8px"><a href="http://developer.apple.com/feedback/?v=1&url=/samplecode/MediaPresenter/listing2.html%3Fid%3DDTS10000965-1.0&media=dvd" target=_new>Yes</a>: Tell us what works for you.</div>
<div style="margin-bottom: 8px"><a href="http://developer.apple.com/feedback/?v=2&url=/samplecode/MediaPresenter/listing2.html%3Fid%3DDTS10000965-1.0&media=dvd" target=_new>It’s good, but:</a> Report typos, inaccuracies, and so forth.</div>
<div><a href="http://developer.apple.com/feedback/?v=3&url=/samplecode/MediaPresenter/listing2.html%3Fid%3DDTS10000965-1.0&media=dvd" target=_new>It wasn’t helpful</a>: Tell us what would have helped.</div>
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