| /* |
| * |
| * 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.BorderLayout; |
| import java.awt.Color; |
| import java.awt.Component; |
| import java.awt.Dimension; |
| import java.awt.Font; |
| import java.awt.FontMetrics; |
| import java.awt.Graphics; |
| import java.awt.Graphics2D; |
| import java.awt.event.MouseAdapter; |
| import java.awt.event.MouseEvent; |
| import java.awt.image.BufferedImage; |
| import javax.swing.JPanel; |
| import javax.swing.border.EtchedBorder; |
| import javax.swing.border.TitledBorder; |
| |
| |
| /** |
| * 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. |
| */ |
| @SuppressWarnings("serial") |
| 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(Font.SERIF, Font.PLAIN, 12); |
| private JPanel panel; |
| |
| public Surface() { |
| setBackground(Color.black); |
| addMouseListener(new MouseAdapter() { |
| |
| @Override |
| public void mouseClicked(MouseEvent e) { |
| if (thread == null) { |
| start(); |
| } else { |
| stop(); |
| } |
| } |
| }); |
| } |
| |
| @Override |
| public Dimension getMinimumSize() { |
| return getPreferredSize(); |
| } |
| |
| @Override |
| public Dimension getMaximumSize() { |
| return getPreferredSize(); |
| } |
| |
| @Override |
| public Dimension getPreferredSize() { |
| int textH = getFontMetrics(font).getHeight(); |
| return new Dimension(135, 2 + textH * 4); |
| } |
| |
| @Override |
| 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) { |
| for (Component comp : panel.getComponents()) { |
| if (((DemoPanel) comp).surface != null) { |
| ((DemoPanel) comp).surface.setMonitor(thread != null); |
| } |
| } |
| } |
| } |
| |
| public void setPanel(JPanel panel) { |
| this.panel = panel; |
| } |
| |
| @Override |
| @SuppressWarnings("SleepWhileHoldingLock") |
| public void run() { |
| |
| Thread me = Thread.currentThread(); |
| |
| while (thread == me && !isShowing() || getSize().width == 0) { |
| try { |
| Thread.sleep(500); |
| } catch (InterruptedException e) { |
| return; |
| } |
| } |
| |
| Dimension d = new Dimension(0, 0); |
| Graphics2D big = null; |
| FontMetrics fm = null; |
| int ascent = 0; |
| int descent = 0; |
| |
| while (thread == me && isShowing()) { |
| |
| if (getWidth() != d.width || getHeight() != d.height) { |
| d = getSize(); |
| bimg = (BufferedImage) createImage(d.width, d.height); |
| big = bimg.createGraphics(); |
| big.setFont(font); |
| fm = big.getFontMetrics(); |
| ascent = fm.getAscent(); |
| descent = fm.getDescent(); |
| setSurfaceState(); |
| } |
| |
| big.setBackground(getBackground()); |
| big.clearRect(0, 0, d.width, d.height); |
| if (panel == null) { |
| continue; |
| } |
| big.setColor(Color.green); |
| int ssH = 1; |
| for (Component comp : panel.getComponents()) { |
| if (((DemoPanel) comp).surface != null) { |
| String pStr = ((DemoPanel) comp).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 |
| |