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Thread: BufferedImage create flicker in simple code

  1. #1
    Junior Member
    Join Date
    Mar 2011
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    Default BufferedImage create flicker in simple code

    I wrote a complex program that need bufferedImage but it is very flicker, so I simplify it and show it here, but still cannot solve.

    Please help. I am using java 6.0.
    import java.awt.Color;
    import java.awt.Graphics;
    import java.awt.Graphics2D;
    import java.awt.event.ActionEvent;
    import java.awt.event.ActionListener;
    import java.awt.image.BufferedImage;
    import javax.swing.JFrame;
    import javax.swing.JPanel;
    import javax.swing.Timer;
    public class Main {
        Timer timer;
        Mill mill;
        JFrame frame;
        int t=0;
        public Main(){
            frame=new JFrame();
            mill=new Mill();
            frame.setSize(new java.awt.Dimension(700,700));
            mill.setPreferredSize(new java.awt.Dimension(800,700));
            timer=new Timer(100,new ActionListener() {
                public void actionPerformed(ActionEvent e) {
        public static void main(String[] args) {
            new Main();
        BufferedImage buff=new BufferedImage(1,1,BufferedImage.TYPE_INT_RGB);
        class Mill extends JPanel {
            public void paintComponent(Graphics g) {
                Graphics2D g3=(Graphics2D)g;
                {//.. paint only
                    if( buff==null|| buff.getWidth()!=mill.getWidth() || 
                        buff=new BufferedImage(mill.getWidth(),mill.getHeight(),BufferedImage.TYPE_INT_RGB);
                    Graphics2D g2 = (Graphics2D) buff.createGraphics();
                    g2.setColor(new Color(0,0,100));
                    g2.fillRect( 0,0,600,600);
                    g2.setColor(new Color(0,0,200));
                    g2.fillRect( 0,0,500,500);
                    g2.setColor(new Color(0,0,250));
                    g2.fillRect( 0,0,400,400);
                g3.drawImage( buff,0,0,buff.getWidth(),buff.getHeight(),this);
    result link here

    Last edited by arnbook; March 12th, 2011 at 12:27 AM.

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