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Repaint question

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Steve Jurkovic

Posts: 1
Nickname: cubfan
Registered: Apr, 2007

Repaint question

Posted: Apr 28, 2007 3:41 PM

Hi, I've been trying to track down a problem I am having.

I'm changing Red/Yellow/Green by calling setRed etc and calling repaint(). It seems to somewhat be working, in that I can track it going through paintComponent. However, it not repainting the screen.

I understand things may 'wait' for a while, (and I don't want this to sound too dumb) but are we saying it could take a minutes to repaint, which seems like forever. When I stretch the screen - boom - repaints immediately.

If I use a value in repaint(long x) what would an appropriate value be? Have also tried to put validate() in place of (and in conjunction with) repaint.

public class NewPanel extends JPanel {

public static boolean Red = false;
public static boolean Yellow = false;
public static boolean Green = false;

public void paintComponent(Graphics g) {
super.paintComponent(g);

System.out.println("in paintcomponent");
System.out.println("Red = " + Red + " Yellow = " + Yellow +
" Green = " + Green);

if(Red) {
System.out.println("In Red Logic");
g.setColor(Color.RED);
g.fillOval(220,50,50,50);
g.setColor(Color.BLACK);
g.drawOval(220,110,50,50);
g.drawOval(220,170,50,50);

}
else if(Yellow) {
System.out.println("In Yellow Logic");
g.setColor(Color.YELLOW);
g.fillOval(220,110,50,50);
g.setColor(Color.BLACK);
g.drawOval(220,50,50,50);
g.drawOval(220,170,50,50);
}
else if(Green){
System.out.println("In Green Logic");
g.setColor(Color.GREEN);
g.fillOval(220,170,50,50);
g.setColor(Color.BLACK);
g.drawOval(220,50,50,50);
g.drawOval(220,110,50,50);
}
else {
System.out.println("In Default Logic");
g.setColor(Color.BLACK);
g.drawOval(220,50,50,50);
g.drawOval(220,110,50,50);
g.drawOval(220,170,50,50);
}

} // end paintComponent

public void setRed(){
System.out.println("Setting Red to True");
Red = true;
Yellow = false;
Green = false;
repaint();
}
public void setYellow(){
System.out.println("Setting Yellow to True");
Red = false;
Yellow = true;
Green = false;
repaint();

}
public void setGreen(){
System.out.println("Setting Green to True");
Red = false;
Yellow = false;
Green = true;
repaint();

}
}

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