"Snap" the window size in increments?

Question

Hello all.
I am trying to accomplish two things with a small windowed program. This window contains 1 or more panels, which describe the current state of your Gmail account (it is a gmail notifier), that are a specific size.
I'd like to:
1) make sure the window is always large enough to show at least 1 panel.
2) "snap" a window resize so that it will not show half of a panel (only full panels).
Can anyone suggest a good way of doing this?
I've been trying to accomplish this by working with the size of the ContentPane in the main frame, but I've had limited success with it. Any additional suggestions would be greatly appreciated.

Answer 1

the frame size is adjusted but it is not "snapped" back to where I want it.What do you mean "is not snapped back". The following example alwasy seems to "snap back" to me.
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class FrameSize extends JFrame
     public FrameSize()
          //  Make sure frame doesn't exceed minimum/maximum values
          addComponentListener( new ComponentAdapter()
               public void componentResized(ComponentEvent e)
                    int width = getWidth();
                    int height = getHeight();
                    if (width < 200) width = 200;
                    if (width > 400) width = 400;
                    if (height < 200) height = 200;
                    if (height > 400) height = 400;
                    setSize(width, height);
     public static void main(String[] args)
          JFrame frame = new FrameSize();
          frame.setDefaultCloseOperation( JFrame.DISPOSE_ON_CLOSE );
          frame.setSize(300, 200);
          frame.setLocationRelativeTo( null );
          frame.setVisible(true);
}Now, I'm sure your panel has a few components added to it. So if you want further help create a simple demo that illustrates you problem. We can't guess what might be causing your problem since it works in a simple example.