Re: GridBagLayout not beh

From:

"Ian Wilson" <ian.wilson@THRWHITE.remove-dii-this>

Newsgroups:

comp.lang.java.gui

Date:

Wed, 27 Apr 2011 15:33:38 GMT

Message-ID:

<46273424$0$10730$db0fefd9@news.zen.co.uk>

To: comp.lang.java.gui
Qu0ll wrote:

"Ian Wilson" <scobloke2@infotop.co.uk> wrote
[snip]

I think you could use fewer than 16 columns and this might make things
more predictable. I suspect some columns are shrinking to zero width
because no component STARTS in them.

I have indeed tried fewer columns and the results are identical. I have
tried as few as 6 columns which is the minimum required to get the
results I desire. It just doesn't seem to work as it should.

Personally I'd use MigLayout and have about 1/10th the code.

I have never used it but I really need to understand why this code is
failing. Any other ideas?

import java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.EventQueue;
import java.awt.GridBagConstraints;
import java.awt.Insets;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JPasswordField;
import javax.swing.JTextField;

import net.miginfocom.swing.MigLayout;

public class GBTest extends JFrame {
     private JPanel panel = new JPanel();
     private JLabel userLabel = new JLabel("User:");
     private JLabel passwordLabel = new JLabel("Password:");
     private JLabel dbLabel = new JLabel("Database:");
     private JTextField userTextField = new JTextField(10);
     private JTextField dbTextField = new JTextField(14);
     private JPasswordField passwordField = new JPasswordField(8);
     private JButton dbButton = new JButton("...");

     public GBTest() {
         setLayout(new BorderLayout());
         panel.setLayout(new MigLayout("wrap 4"));

         panel.add(userLabel);
         panel.add(userTextField);
         panel.add(passwordLabel);
         panel.add(passwordField, "span 2");
         panel.add(dbLabel);
         panel.add(dbTextField, "span 3");
         panel.add(dbButton);

         add(panel, BorderLayout.CENTER);

         pack();
         setPreferredSize(new Dimension(400, 250));
         setSize(new Dimension(400, 250));
         setLocationRelativeTo(null);
         setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
     }

     public static void main(String[] args) {
         EventQueue.invokeLater(new Runnable() {
             public void run() {
                 new GBTest().setVisible(true);
             }
         });
     }
}

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