I would revert to the use of the Java Docs recommended do/while loops.
They work well. And you will have to figure out when to call your
rendering method.
I use MemoryImageSource and render with the do/while loops
in my newPixels() method. I use paint() with the do/while
loops for expose events. And I toggle setIgnoreRepaint()
as needed.
The mods to you've made to the do/while loops look unnecessary.
But our apps are different.
You are on the right track. Don't forget about overriding update().
[EMAIL PROTECTED] wrote:
OK I have it working by overriding paint() to call the rendering method but
this seems like a bit of wasted effort, at least on some occasions. Anyway,
it's working but I have noticed that almost every render has to happen twice
because the strategy.contentsRestored() method returns true.
Is this normal? The following is a cut-down version of the code which exhibits
this problem.
[code]
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.event.ComponentAdapter;
import java.awt.event.ComponentEvent;
import java.awt.image.BufferStrategy;
import javax.swing.JFrame;
import javax.swing.JPanel;
public class StrategyTest extends JFrame {
private class MyPanel extends JPanel {
public MyPanel() {
this.setIgnoreRepaint(true);
this.addComponentListener(new ComponentAdapter() {
@Override
public void componentResized(final
ComponentEvent e) {
StrategyTest.this.render();
}
});
}
}
private final BufferStrategy strategy;
private Graphics2D g2d;
public StrategyTest() {
this.setLayout(new BorderLayout());
this.add(new MyPanel(), BorderLayout.CENTER);
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
this.pack();
this.setSize(1024, 768);
this.setIgnoreRepaint(true);
this.createBufferStrategy(2);
this.strategy = this.getBufferStrategy();
}
public static void main(final String[] args) {
new StrategyTest().setVisible(true);
}
@Override
public void paint(final Graphics g) {
this.render();
}
public void render() {
if (this.strategy == null) {
return;
}
do {
do {
this.g2d =
(Graphics2D)this.strategy.getDrawGraphics();
this.drawBox();
this.g2d.dispose();
if (!this.strategy.contentsRestored()) {
break;
} else {
System.out.println("### BUFFER CONTENTS
RESTORED ###");
}
} while (true);
this.strategy.show();
if (!this.strategy.contentsLost()) {
break;
} else {
System.out.println("### BUFFER CONTENTS LOST
###");
}
} while (true);
}
@Override
public void update(final Graphics g) {
this.paint(g);
}
private void drawBox() {
this.g2d.setColor(Color.RED);
this.g2d.fillRect(20, 20, this.getWidth() - 40,
this.getHeight() - 40);
}
}
[/code]
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