/**
 * File: AboutDialog.java
 * Author: Brian Borowski
 * Date created: May 1999
 * Date last modified: September 3, 2012
 */
import java.awt.Container;
import java.awt.FlowLayout;
import java.awt.Font;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.Insets;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;

import javax.swing.BorderFactory;
import javax.swing.JButton;
import javax.swing.JDialog;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;

/**
 * Class that implements a modal dialog box to display info about the application.
 */
public class AboutDialog extends JDialog
                         implements ActionListener, KeyListener {
    private static final long serialVersionUID = 1L;

    public AboutDialog(final JFrame parent, final String title, final String[] data,
                       final String imageName) {
        super(parent, "About...", true);
        setBackground(parent.getBackground());
        final Container contentPane = getContentPane();
        final ImagePanel icon = new ImagePanel(imageName);

        final JPanel stringPanel = new JPanel();
        GridBagConstraints gbc = new GridBagConstraints();
        stringPanel.setLayout(new GridBagLayout());
        gbc.insets = new Insets(5, 0, 5, 0);
        gbc.gridwidth = GridBagConstraints.REMAINDER;
        for (int i = 0; i < data.length; ++i) {
            stringPanel.add(new JLabel(" " + data[i] + " "), gbc);
        }

        final JButton ok = new JButton("OK");
        ok.addActionListener(this);
        ok.addKeyListener(this);
        ok.setFocusPainted(false);
        ok.setDefaultCapable(true);
        ok.setMnemonic('O');

        final JLabel titleLabel = new JLabel(title);
        titleLabel.setFont(new Font("sansserif", Font.BOLD, 16));

        final JPanel imageStringPanel = new JPanel();
        imageStringPanel.add(icon);
        imageStringPanel.add(titleLabel);

        final JPanel topPanel = new JPanel();
        topPanel.setLayout(new FlowLayout());
        topPanel.add(imageStringPanel);

        final JPanel middlePanel = new JPanel();
        middlePanel.setLayout(new FlowLayout());
        middlePanel.add(stringPanel);
        middlePanel.setBorder(BorderFactory.createEtchedBorder());

        final JPanel bottomPanel = new JPanel();
        bottomPanel.add(ok);

        contentPane.setLayout(new GridBagLayout());
        contentPane.add(topPanel, gbc);
        gbc.insets = new Insets(0, 5, 0, 5);
        contentPane.add(middlePanel, gbc);
        gbc.insets = new Insets(0, 0, 0, 0);
        contentPane.add(bottomPanel, gbc);

        addWindowListener(new WindowAdapter() {
            public void windowClosing(final WindowEvent e) {
                e.getWindow().setVisible(false);
                e.getWindow().dispose();
            }
        });

        setResizable(false);
        pack();
        setLocationRelativeTo(parent);
        setVisible(true);
    }

    public void keyPressed(final KeyEvent ke) {
        if ((KeyEvent.getKeyText(ke.getKeyCode()).equals("Enter")) ||
            (KeyEvent.getKeyText(ke.getKeyCode()).equals("Escape"))) {
            setVisible(false);
            dispose();
        }
    }

    public void keyReleased(final KeyEvent ke) { }

    public void keyTyped(final KeyEvent ke) { }

    public void actionPerformed(final ActionEvent e) {
        setVisible(false);
        dispose();
    }
}