Re: [JPanel child of JPanel]how to get a rectangle object with the dimensions of the JPanel object

From:

Knute Johnson <nospam@rabbitbrush.frazmtn.com>

Newsgroups:

comp.lang.java.help

Date:

Thu, 06 Aug 2009 08:39:10 -0700

Message-ID:

<4a7af91e$0$23341$b9f67a60@news.newsdemon.com>

Daniel Moyne wrote:

I have built a childJPanel child of another mainJPanel and I cannot get its
dimensions ; I tried :
Rectangle ee=childJPanel.getBounds();
childJPanel.getX();
childJPanel.getHeight();

but all the time I get 0 !

For the time being the layout of my mainJPanel is Absolute where I have
positioned my childJPanel with xpos, ypos, height and width but I do not
think that here it has no direct impact as the methods listed above shoud
work for any layouts ?

Thanks.

Can you see this childJPanel? My best guess is that it's size is zero.

import java.awt.*;
import java.awt.event.*;

public class test8 extends Frame {
     public test8() {
         addWindowListener(new WindowAdapter() {
             public void windowClosing(WindowEvent we) {
                 dispose();
             }
         });

         Panel parent = new Panel(null);
         parent.setBackground(Color.BLUE);
         add(parent);

         Panel child = new Panel();
         child.setBackground(Color.YELLOW);
         child.setBounds(50,50,50,50);
         parent.add(child);

         setSize(320,240);
         setVisible(true);

         System.out.println(child.getBounds());
     }

     public static void main(String[] args) {
         new test8();
     }
}

C:\Documents and Settings\Knute Johnson>java test8
java.awt.Rectangle[x=50,y=50,width=50,height=50]

--

Knute Johnson
email s/nospam/knute2009/

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