Re: How to align swing buttons vertically ?

From:
Knute Johnson <nospam@knutejohnson.com>
Newsgroups:
comp.lang.java.programmer
Date:
Sun, 13 Nov 2011 16:16:13 -0800
Message-ID:
<j9pmkf$dq7$1@dont-email.me>
On 11/13/2011 12:17 PM, Olivier Scalbert wrote:

On 11/13/2011 08:01 PM, Knute Johnson wrote:

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

public class test extends JPanel {
     public test() {
         super(new GridBagLayout());

         GridBagConstraints c = new GridBagConstraints();
         c.fill = GridBagConstraints.HORIZONTAL;
         c.gridy = 0;

         String labels[] = {"Button 1","Button 2",
          "Long Button 3","Button 4","Button 5"};

         for (int i=0; i<labels.length; i++) {


             if (i == labels.length - 1) { // last label
                 // anchor last button to north and give it
                 // a weighty of 1.0. this will tell that
                 // button to take all remaining vertical
                 // space and will push all the other
                 // buttons to top of the container
                 c.anchor = GridBagConstraints.NORTH;
                 c.weighty = 1.0
             }

             add(new JButton(labels[i]),c);
             ++c.gridy;
         }
     }

     public static void main(String[] args) {
         EventQueue.invokeLater(new Runnable() {
             public void run() {
                 JFrame f = new JFrame();
                 f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
                 f.add(new test(),BorderLayout.EAST);
                 f.setSize(700,500);
                 f.setVisible(true);
             }
         });
     }
}


Ok, all the buttons have the same size and are aligned ! When I resize
the main frame, the group of buttons is in the EAST part but in the
middle of the frame height. Is it possible the have this group on top
(of the EAST part) ?


--

Knute Johnson

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