Foam

Foam is an easy to use Swing-based panel editor, available at http://www.computersinmotion.com.

Pointed at the Layout Showdown, it took about 20 minutes to come up with a solution in Foam. I believe it follows the spec entirely, including platform-specific button spacing.

Note the code was all generated. Note the useful action handlers at the bottom!

There's an XML file containing the layout XML and a Foam project file at http://www.ausperks.net/FoamShowdown.zip

import java.awt.Frame;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JDialog;
import javax.swing.JPanel;
import javax.swing.JTextField;

import com.cim.dlgedit.loader.DialogResource;
import com.cim.util.swing.DlgUtils;

public class DlgShowdown extends JDialog implements ActionListener {
    // Declare beans.
    private JButton newButton;
    private JButton deleteButton;
    private JButton editButton;
    private JButton saveButton;
    private JButton cancelButton;
    private JTextField country;
    private JTextField state;
    private JTextField phone;
    private JTextField email;
    private JTextField address1;
    private JTextField address2;
    private JTextField city;

    // Constructor.
    public DlgShowdown(Frame owner) {
        // This dialog is modal.
        super(owner, "Showdown", true);

        // Load up the dialog contents.
        JPanel panel = DialogResource.load("Showdown.gui_xml");

        setContentPane(panel);

        // Attach beans to fields.
        newButton = (JButton) DialogResource.getComponentByName(panel, "newButton");
        deleteButton = (JButton) DialogResource.getComponentByName(panel, "deleteButton");
        editButton = (JButton) DialogResource.getComponentByName(panel, "editButton");
        saveButton = (JButton) DialogResource.getComponentByName(panel, "saveButton");
        cancelButton = (JButton) DialogResource.getComponentByName(panel, "cancelButton");
        country = (JTextField) DialogResource.getComponentByName(panel, "country");
        state = (JTextField) DialogResource.getComponentByName(panel, "state");
        phone = (JTextField) DialogResource.getComponentByName(panel, "phone");
        email = (JTextField) DialogResource.getComponentByName(panel, "email");
        address1 = (JTextField) DialogResource.getComponentByName(panel, "address1");
        address2 = (JTextField) DialogResource.getComponentByName(panel, "address2");
        city = (JTextField) DialogResource.getComponentByName(panel, "city");

        // Add dialog as ActionListener.
        newButton.addActionListener(this);
        deleteButton.addActionListener(this);
        editButton.addActionListener(this);
        saveButton.addActionListener(this);
        cancelButton.addActionListener(this);

        pack();
        setLocationRelativeTo(owner);
        // Set Enter and Escape keys as default keys.
        //getRootPane().setDefaultButton(ok);
        //DlgKeyHandler.addDefaultKeysHandler(this, ok, cancel);
        //setDefaultCloseOperation(DISPOSE_ON_CLOSE);
    }

    /**
     * Invoke the onXxx() action handlers.
     * @see java.awt.event.ActionListener#actionPerformed(java.awt.event.ActionEvent)
     */
    public void actionPerformed(ActionEvent e) {
        DlgUtils.invokeHandler(this, e);
    }

    public void onnewButton() {
    }

    public void ondeleteButton() {
    }

    public void oneditButton() {
    }

    public void onsaveButton() {
    }

    public void oncancelButton() {
    }
}