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Java Source | 2002-09-06 | 6.1 KB | 189 lines |
- /*
- * Copyright (c) 2002 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 1.32 02/06/13
- */
-
-
- 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
-