diff options
Diffstat (limited to 'examples')
| -rw-r--r-- | examples/gnu/classpath/examples/swing/Demo.java | 10 | ||||
| -rw-r--r-- | examples/gnu/classpath/examples/swing/FillRect.java | 301 |
2 files changed, 309 insertions, 2 deletions
diff --git a/examples/gnu/classpath/examples/swing/Demo.java b/examples/gnu/classpath/examples/swing/Demo.java index 0f0b3555e..6447077a3 100644 --- a/examples/gnu/classpath/examples/swing/Demo.java +++ b/examples/gnu/classpath/examples/swing/Demo.java @@ -156,7 +156,10 @@ public class Demo examples.add(new JMenuItem(new PopupAction("NavigationFilter", NavigationFilterDemo.createDemoFactory()))); - + examples.add(new JMenuItem(new PopupAction("Paint Performance", + FillRect.createDemoFactory()))); + + final JMenuItem vmMenu; help.add(new JMenuItem("just play with the widgets")); @@ -543,7 +546,10 @@ public class Demo panel.add(new JButton(new PopupAction("Tree", TreeDemo.createDemoFactory()))); panel.add(new JButton(new PopupAction("Theme Editor", - MetalThemeEditor.createDemoFactory()))); + MetalThemeEditor.createDemoFactory()))); + panel.add(new JButton(new PopupAction("Paint Performance", + FillRect.createDemoFactory()))); + JButton exitDisposer = mkDisposerButton(frame); panel.add(exitDisposer); diff --git a/examples/gnu/classpath/examples/swing/FillRect.java b/examples/gnu/classpath/examples/swing/FillRect.java new file mode 100644 index 000000000..0c5566958 --- /dev/null +++ b/examples/gnu/classpath/examples/swing/FillRect.java @@ -0,0 +1,301 @@ +/* FillRect.java - demonstrator for classpath/gcj fillrect performance issue + Copyright (C) 2006 Free Software Foundation, Inc. + +This file is part of GNU Classpath examples. + +GNU Classpath is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2, or (at your option) +any later version. + +GNU Classpath is distributed in the hope that it will be useful, but +WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +General Public License for more details. + +You should have received a copy of the GNU General Public License +along with GNU Classpath; see the file COPYING. If not, write to the +Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA +02110-1301 USA. */ + +package gnu.classpath.examples.swing; + +import java.awt.*; +import java.awt.event.*; +import javax.swing.*; + +/** + * @author Norman Hendrich + */ +public class FillRect + extends JPanel + implements ActionListener +{ + + static FillRect fillRectDemo; + + LCDCanvas lcd; + Worker worker; + JLabel label; + + int nx = 64; + int ny = 64; + int matrix[][], future[][]; + int generation = 0; + + // 20 msec, or 50 repaints per sec (theoretically) + int sleepMillis = 20; + long lastMillis = System.currentTimeMillis(); + + boolean enableRepaints = true; + + public void actionPerformed(ActionEvent e) + { + if (e.getActionCommand().equals("CLOSE")) + { + System.exit(0); + } + } + + public FillRect() + { + setSize(64, 64); + createContent(); + } + + public void createContent() + { + setLayout(new BorderLayout()); + + JPanel p = new JPanel(new BorderLayout()); + lcd = new LCDCanvas(); + label = new JLabel(); + label.setText("paintComponent took 00 msec. (00000 fillRect calls)"); + p.add(lcd, BorderLayout.CENTER); + p.add(label, BorderLayout.SOUTH); + add(p); + } + + public void setSize(int _nx,int _ny ) + { + nx = _nx; + ny = _ny; + matrix = new int[nx][ny]; + future = new int[nx][ny]; + } + + public void initFrameContent() + { + JPanel closePanel = new JPanel(); + JButton closeButton = new JButton("Close"); + closeButton.setActionCommand("CLOSE"); + closeButton.addActionListener(this); + closePanel.add(closeButton); + add(closePanel, BorderLayout.SOUTH); + } + + public void setSleepMillis(int millis) + { + sleepMillis = millis; + } + + public class LCDCanvas extends JPanel + { + private int sx, sy; + private Color activePixel = new Color(30, 30, 40); + private Color passivePixel = new Color(200, 180, 240); + private Color gridPixel = new Color(255, 240, 240); + + public LCDCanvas() + { + super(); + sx = 4 * nx; + sy = 4 * ny; + } + + public void paintComponent(Graphics g) + { + // for buffered drawing - not used atm + // g.drawImage( buffer, 0, 0, null ); + long t1 = System.currentTimeMillis(); + + g.setColor(gridPixel); + g.fillRect(0, 0, sx, sy); + + Color pixelColor = null; + for (int ix = 0; ix < nx; ix++) + { + for (int iy = 0; iy < ny; iy++) + { + if (matrix[ix][iy] != 0) + pixelColor = activePixel; + else + pixelColor = passivePixel; + + g.setColor(pixelColor); + g.fillRect(4 * ix, 4 * iy, 3, 3); + } + } + + long t2 = System.currentTimeMillis(); + + label.setText("paintComponent took " + (t2 - t1) + " msec. " + + "(" + (nx * ny + 1) + " fillRect calls)"); + } + + public Dimension getPreferredSize() + { + return new Dimension(sx,sy); + } + + public Dimension getMinimumSize() + { + return new Dimension(sx,sy); + } + } + + public class Worker extends Thread + { + public void run() + { + boolean running = true; + while(running) + { + iteration(); + + if (enableRepaints) + display(); + + if (sleepMillis > 0) + { + try + { + Thread.sleep( sleepMillis ); + } + catch(InterruptedException ie) + { + running = false; + } + } + } + } + } + + /** + * stupid animation algorithm: show binary representation of current + * iteration. + */ + public void iteration() + { + generation++; + + for (int i = 0; i < nx; i++) + { + long tmp1 = 1L << i; + for (int j = 0; j < ny; j++) + { + // count neighbors + long tmp2 = (1L << j); + + + long tmp3 = generation & tmp1 & tmp2; + if (tmp3 != 0) + matrix[i][j] = 1; + else + matrix[i][j] = 0; + } + } + + if ((generation % 100) == 0) + { + long t = System.currentTimeMillis(); + // System.out.println( + // " generation= " + generation + + // " iterations/sec= " + 100.0*1000/(t-lastMillis) ); + lastMillis = t; + } + } + + public void display() + { + lcd.repaint(); + } + + public static void usage() + { + System.out.println( + "Usage: <java> FillRect2 [-sleep <millis>] [-size <int>] [-nopaint]\n" + + "Example: jamvm FillRect2 -sleep 10 -size 100\n" + ); + System.exit(0); + } + + public static void main(String args[]) + throws Exception + { + fillRectDemo = new FillRect(); + for (int i = 0; i < args.length; i++) + { + if ("-help".equals(args[i])) + { + usage(); + } + if ("-sleep".equals(args[i])) + { + fillRectDemo.setSleepMillis( Integer.parseInt(args[i + 1])); + i++; + } + if ("-size".equals(args[i])) + { + int size = Integer.parseInt(args[i + 1]); + fillRectDemo.setSize(size, size); + i++; + } + if ("-nopaint".equals(args[i])) + { + fillRectDemo.enableRepaints = false; + } + } + + SwingUtilities.invokeLater (new Runnable() + { + public void run() + { + + fillRectDemo.initFrameContent(); + JFrame frame = new JFrame("FillRect performance test"); + frame.getContentPane().add(fillRectDemo); + frame.pack(); + frame.show(); + fillRectDemo.worker = fillRectDemo.new Worker(); + fillRectDemo.worker.start(); + } + }); + } + + /** + * Returns a DemoFactory that creates a SliderDemo. + * + * @return a DemoFactory that creates a SliderDemo + */ + public static DemoFactory createDemoFactory() + { + return new DemoFactory() + { + public JComponent createDemo() + { + fillRectDemo = new FillRect(); + SwingUtilities.invokeLater + (new Runnable() + { + public void run() + { + fillRectDemo.worker = fillRectDemo.new Worker(); + fillRectDemo.worker.start(); + } + }); + return fillRectDemo; + } + }; + } +} |