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

/*
    this is the Controller component
*/

class Life extends JFrame implements ActionListener
{

    private LifeView view;
    private LifeModel model;
    private JButton runButton, pauseButton, resumeButton;
    private Timer timer;

    Life()
    {
        super("Conway's Life");

        // build the buttons
        JPanel controlPanel = 
                        new JPanel(new FlowLayout(FlowLayout.CENTER));
        runButton = new JButton("Run");
        runButton.addActionListener(this);
        runButton.setEnabled(true);
        controlPanel.add(runButton);
        pauseButton = new JButton("Pause");
        pauseButton.addActionListener(this);
        pauseButton.setEnabled(false);
        controlPanel.add(pauseButton);
        resumeButton = new JButton("Resume");
        resumeButton.addActionListener(this);
        resumeButton.setEnabled(false);
        controlPanel.add(resumeButton);

        // build the view
        view = new LifeView();
        view.setBackground(Color.white);

        // put buttons, view together
        Container c = getContentPane();
        c.add(controlPanel, BorderLayout.NORTH);
        c.add(view, BorderLayout.CENTER);

        // build the model
        model = new LifeModel(view);
    }

    public void actionPerformed(ActionEvent e)
    {
        JButton b = (JButton)e.getSource();
        if ( b == runButton )
        {
            model.run();
            runButton.setEnabled(false);
            pauseButton.setEnabled(true);
            resumeButton.setEnabled(false);
        }
        else if ( b == pauseButton )
        {
            model.pause();
            runButton.setEnabled(false);
            pauseButton.setEnabled(false);
            resumeButton.setEnabled(true);
        }
        else if ( b == resumeButton )
        {
            model.resume();
            runButton.setEnabled(false);
            pauseButton.setEnabled(true);
            resumeButton.setEnabled(false);
        }
    }

    public static void main(String[] args)
    {
        Life conway = new Life();
        conway.addWindowListener(new WindowAdapter()
             {
                 public void windowClosing(WindowEvent e)
                 {
                     System.exit(0);
                 }
             }
            );
        conway.setSize(570, 640);
        conway.show();
    }
}