JDialog, form, GridBagLayout

I tried to correct my layout, however, I still has some errors in it:

public class TestDialog extends JDialog {

private JLabel infoLabel, nameLabel, addressLabel;

private JTextField nameField, addressField;

public TestDialog() {

Dimension dim_dialog = new Dimension(200, 100);

JPanel pane = new JPanel(new GridBagLayout());

GridBagConstraints c = new GridBagConstraints();

c.fill = GridBagConstraints.HORIZONTAL;

infoLabel = new JLabel("long text long text long text");

c.weightx = 0;

c.gridwidth = 2;

c.gridx = 0;

c.gridy = 0;

pane.add(infoLabel, c);

nameLabel = new JLabel("Name:");

c.weightx = 1;

c.gridx = 1;

c.gridy = 1;

pane.add(nameLabel, c);

nameField = new JTextField(20);

c.weightx = 1;

c.gridx = 2;

c.gridy = 1;

pane.add(nameField, c);

addressLabel = new JLabel("Address:");

c.weightx = 1;

c.gridx = 1;

c.gridy = 2;

pane.add(addressLabel, c);

addressField = new JTextField(20);

c.weightx = 1;

c.gridx = 2;

c.gridy = 2;

pane.add(addressField, c);

add(pane);

setPreferredSize(dim_dialog);

setDefaultCloseOperation(DISPOSE_ON_CLOSE);

pack();

}

}

The textfields are stuck to the right; if I add more text to my infoLabel the layout gets even worse.

Where are my mistakes?

SFLa at 2007-7-12 15:17:32 >

Well, there's also the issue of specifying gridx as 1 and 2, instead of 0 and 1 for your columns... Or not making infoLable's gridwidth = 3 to accommodate the implied 3 columns...

Dimension dim_dialog = new Dimension(200, 100);

JPanel pane = new JPanel(new GridBagLayout());

GridBagConstraints c = new GridBagConstraints();

c.fill = GridBagConstraints.NONE;

c.anchor = GridBagConstraints.WEST;

JLabel infoLabel = new JLabel("long text long text long text long text long text long text long text long text long text long text long text long text long text long text long text");

c.weightx = 1;

c.gridwidth = 2;

c.gridx = 0;

c.gridy = 0;

pane.add(infoLabel, c);

JLabel nameLabel = new JLabel("Name:");

c.gridwidth = 1;

c.gridx = 0;

c.gridy = 1;

pane.add(nameLabel, c);

JTextField nameField = new JTextField(20);

c.gridx = 1;

c.gridy = 1;

pane.add(nameField, c);

JLabel addressLabel = new JLabel("Address:");

c.gridx = 0;

c.gridy = 2;

pane.add(addressLabel, c);

JTextField addressField = new JTextField(20);

c.gridx = 1;

c.gridy = 2;

pane.add(addressField, c);

d.getContentPane().add(pane);

d.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);

d.pack();

bsampieria at 2007-7-12 15:17:32 >

package com.sun.scjd.edu.gui;

import java.awt.Dimension;

import java.awt.GridBagConstraints;

import java.awt.GridBagLayout;

import java.awt.Insets;

import javax.swing.JDialog;

import javax.swing.JLabel;

import javax.swing.JPanel;

import javax.swing.JTextField;

public class TestDialog extends JDialog {

private JPanel infoPanel;

private JLabel infoLabel, nameLabel,faxLabel,emailLabel,addressLabel;

private JTextField nameField,faxField,emailField,addressField;

public TestDialog() {

this.setTitle("Gridbag Layout Example");

Dimension dim_dialog = new Dimension(200, 100);

JPanel pane = new JPanel(new GridBagLayout());

GridBagConstraints c = new GridBagConstraints();

//c.fill = GridBagConstraints.HORIZONTAL;

infoPanel = new JPanel();

//c.weightx = 0.5;

c.gridx = 0;

c.gridy = 0;

pane.add(infoPanel, c);

infoLabel = new JLabel("Some information...");

c.gridx = 1;

c.gridy = 1;

infoPanel.add(infoLabel, c);

nameLabel = new JLabel("Name:");

//c.weightx = 0.5;

c.gridx = 0;

c.gridy = 1;

pane.add(nameLabel, c);

nameField = new JTextField(10);

//c.weightx = 0.5;

c.gridx = 1;

c.gridy = 1;

pane.add(nameField, c);

Insets in = new Insets(5,5,5,5);

faxLabel = new JLabel("Fax:");

c.gridx = 0;

c.gridy = 2;

c.insets = in;

pane.add(faxLabel, c);

faxField = new JTextField(10);

c.gridx = 1;

c.gridy = 2;

pane.add(faxField, c);

emailLabel = new JLabel("Email:");

c.gridx = 0;

c.gridy = 3;

pane.add(emailLabel, c);

emailField = new JTextField(10);

c.gridx = 1;

c.gridy = 3;

pane.add(emailField, c);

addressLabel = new JLabel("Address:");

c.gridx = 0;

c.gridy = 4;

pane.add(addressLabel, c);

addressField = new JTextField(10);

c.gridx = 1;

c.gridy = 4;

pane.add(addressField,c);

add(pane);

setPreferredSize(dim_dialog);

setDefaultCloseOperation( DISPOSE_ON_CLOSE );

setSize(600,300);

}

public static void main(String[] args) {

new TestDialog().setVisible(true);

}

}

Did you expect this ?

AnanSmritia at 2007-7-12 15:17:32 >

Your problem is that the JTextField has also the

c.fill = GridBagConstraints.NONE

flag set so it will use its requested size and not that of one cell in the GridBag Layout. Set the option to

c.fill = GridBagConstraints.BOTH

and it will take the space of the complete cell.

marco@dea at 2007-7-12 15:17:32 >