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/*
* @(#)CustomControls.java 1.11 06/08/09
*
* Copyright (c) 2006 Sun Microsystems, Inc. All Rights Reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* -Redistribution of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* -Redistribution 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 Sun Microsystems, Inc. or the names of contributors may
* be used to endorse or promote products derived from this software without
* specific prior written permission.
*
* This software is provided "AS IS," without a warranty of any kind. ALL
* EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, INCLUDING
* ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE
* OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN MIDROSYSTEMS, INC. ("SUN")
* AND ITS LICENSORS SHALL NOT BE LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE
* AS A RESULT OF USING, MODIFYING OR DISTRIBUTING THIS SOFTWARE OR ITS
* DERIVATIVES. IN NO EVENT WILL SUN OR ITS LICENSORS BE LIABLE FOR ANY LOST
* REVENUE, PROFIT OR DATA, OR FOR DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL,
* INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY
* OF LIABILITY, ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE,
* EVEN IF SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
*
* You acknowledge that this software is not designed, licensed or intended
* for use in the design, construction, operation or maintenance of any
* nuclear facility.
*/
/*
* @(#)CustomControls.java 1.11 06/08/09
*/
package java2d;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.border.EtchedBorder;
/**
* A convenience class for demos that use Custom Controls. This class
* sets up the thread for running the custom control. A notifier thread
* is started as well, a flashing 2x2 rect is drawn in the upper right corner
* while the custom control thread continues to run.
*/
public abstract class CustomControls extends JPanel implements Runnable {
protected Thread thread;
protected boolean doNotifier;
private CCNotifierThread ccnt;
private String name = "foo.bar Demo";
private static final Color blue = new Color(204, 204, 255);
public CustomControls() {
setBorder(new EtchedBorder());
addMouseListener(new MouseAdapter() {
public void mouseClicked(MouseEvent e) {
if (thread == null) { start(); } else { stop(); }
}
});
}
public CustomControls(String name) {
this();
this.name = name + " Demo";
}
public void paintComponent(Graphics g) {
super.paintComponent(g);
g.setColor(doNotifier ? blue : Color.gray);
g.fillRect(getSize().width-2, 0, 2, 2);
}
public void start() {
if (thread == null) {
thread = new Thread(this);
thread.setPriority(Thread.MIN_PRIORITY);
thread.setName(name + " ccthread");
thread.start();
(ccnt = new CCNotifierThread()).start();
ccnt.setName(name + " ccthread notifier");
}
}
public synchronized void stop() {
if (thread != null) {
thread.interrupt();
if (ccnt != null) {
ccnt.interrupt();
}
}
thread = null;
}
// Custom Controls override the run method
public void run() { }
/**
* Notifier that the custom control thread is running.
*/
class CCNotifierThread extends Thread {
public void run() {
while (thread != null) {
doNotifier = !doNotifier;
repaint();
try { Thread.sleep(444); } catch (Exception ex) { break; }
}
doNotifier = false; repaint();
}
}
}
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