| /* |
| * |
| * Copyright (c) 2007, 2011, Oracle and/or its affiliates. All rights reserved. |
| * |
| * 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 Oracle 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. |
| */ |
| |
| |
| package java2d; |
| |
| |
| import java.awt.Color; |
| import java.awt.Graphics; |
| import java.awt.event.MouseAdapter; |
| import java.awt.event.MouseEvent; |
| import javax.swing.JPanel; |
| 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. |
| */ |
| @SuppressWarnings("serial") |
| 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() { |
| |
| @Override |
| public void mouseClicked(MouseEvent e) { |
| if (thread == null) { start(); } else { stop(); } |
| } |
| }); |
| } |
| |
| public CustomControls(String name) { |
| this(); |
| this.name = name + " Demo"; |
| } |
| |
| @Override |
| 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 |
| @Override |
| public void run() { |
| } |
| |
| |
| /** |
| * Notifier that the custom control thread is running. |
| */ |
| class CCNotifierThread extends Thread { |
| |
| @Override |
| @SuppressWarnings("SleepWhileHoldingLock") |
| public void run() { |
| while (thread != null) { |
| doNotifier = !doNotifier; |
| repaint(); |
| try { |
| Thread.sleep(444); |
| } catch (Exception ex) { |
| break; |
| } |
| } |
| doNotifier = false; repaint(); |
| } |
| } |
| } |