/* * Copyright (c) 2003 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: * * -Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * -Redistribution in binary form must reproduct 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 AND ITS LICENSORS SHALL NOT * BE LIABLE FOR ANY DAMAGES OR LIABILITIES SUFFERED BY LICENSEE AS A RESULT * OF OR RELATING TO USE, MODIFICATION OR DISTRIBUTION OF THE 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 SOFTWARE, EVEN * IF SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. * * You acknowledge that Software is not designed, licensed or intended for * use in the design, construction, operation or maintenance of any nuclear * facility. */ /* * @(#)PerformanceMonitor.java 1.33 03/01/23 */ package java2d; import java.awt.*; import java.awt.event.*; import javax.swing.JPanel; import javax.swing.border.EtchedBorder; import javax.swing.border.TitledBorder; import java.awt.font.TextLayout; import java.awt.font.FontRenderContext; import java.awt.image.BufferedImage; import java.awt.geom.Rectangle2D; /** * Displays the time for a Surface to paint. Displays the number * of frames per second on animated demos. Up to four surfaces fit * in the display area. */ public class PerformanceMonitor extends JPanel { Surface surf; public PerformanceMonitor() { setLayout(new BorderLayout()); setBorder(new TitledBorder(new EtchedBorder(), "Performance")); add(surf = new Surface()); } public class Surface extends JPanel implements Runnable { public Thread thread; private BufferedImage bimg; private Font font = new Font("Times New Roman", Font.PLAIN, 12); private JPanel panel; public Surface() { setBackground(Color.black); addMouseListener(new MouseAdapter() { public void mouseClicked(MouseEvent e) { if (thread == null) start(); else stop(); } }); } public Dimension getMinimumSize() { return getPreferredSize(); } public Dimension getMaximumSize() { return getPreferredSize(); } public Dimension getPreferredSize() { int textH = getFontMetrics(font).getHeight(); return new Dimension(135,2+textH*4); } public void paint(Graphics g) { if (bimg != null) { g.drawImage(bimg, 0, 0, this); } } public void start() { thread = new Thread(this); thread.setPriority(Thread.MIN_PRIORITY); thread.setName("PerformanceMonitor"); thread.start(); } public synchronized void stop() { thread = null; setSurfaceState(); notify(); } public void setSurfaceState() { if (panel == null) { return; } Component cmps[] = panel.getComponents(); for (int i = 0; i < cmps.length; i++) { if (((DemoPanel) cmps[i]).surface != null) { ((DemoPanel) cmps[i]).surface.setMonitor(thread != null); } } } public void setPanel(JPanel panel) { this.panel = panel; } public void run() { Thread me = Thread.currentThread(); while (thread == me && !isShowing() || getSize().width == 0) { try { thread.sleep(500); } catch (InterruptedException e) { return; } } Dimension d = getSize(); bimg = (BufferedImage) createImage(d.width, d.height); Graphics2D big = bimg.createGraphics(); big.setFont(font); FontMetrics fm = big.getFontMetrics(); int ascent = fm.getAscent(); int descent = fm.getDescent(); setSurfaceState(); while (thread == me && isShowing()) { big.setBackground(getBackground()); big.clearRect(0, 0, d.width, d.height); if (panel == null) { continue; } Component cmps[] = panel.getComponents(); big.setColor(Color.green); int ssH = 1; for (int i = 0; i < cmps.length; i++) { if (((DemoPanel) cmps[i]).surface != null) { String pStr = ((DemoPanel) cmps[i]).surface.perfStr; if (pStr != null) { ssH += ascent; big.drawString(pStr, 4, ssH+1); ssH += descent; } } } repaint(); try { thread.sleep(999); } catch (InterruptedException e) { break; } } thread = null; } } // End Surface } // End PeformanceMonitor