package presentation;

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


public class ReactorPanel extends JPanel implements ActionListener  {

	private Reactor reactor;

	public ReactorPanel() {
		// create reactor and a few listeners
		reactor = new Reactor();
		reactor.addVetoableChangeListener(new Thermostat(reactor));
		reactor.addPropertyChangeListener(new Alarm(reactor));

		// create and listen to controls
		JButton incTemp = new JButton("INC TEMP");
		incTemp.addActionListener(this);
		JButton decTemp = new JButton("DEC TEMP");
		decTemp.addActionListener(this);
		Thermometer tempDisplay = new Thermometer(reactor);

		// add controls to the panel (order-dependent!)
		this.add(incTemp);
		this.add(tempDisplay);
		this.add(decTemp);

	}

	public void display() {
		JFrame frame = new JFrame();
		Container cp = frame.getContentPane();
		cp.add(this);
		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		frame.setTitle("Reactor Control Panel");
		frame.setSize(300, 500);
		frame.pack();
		frame.setVisible(true);
	}

	public void actionPerformed(ActionEvent ae) {
		String cmmd = ae.getActionCommand();
		if (cmmd == "INC TEMP") {
			try {
				reactor.setTemperature(reactor.getTemperature() + Reactor.DELTA);
			} catch(PropertyVetoException e) {
				JOptionPane.showMessageDialog(this, "Change vetoed");
			}
		} else if (cmmd == "DEC TEMP") {
			try {
				reactor.setTemperature(reactor.getTemperature() - Reactor.DELTA);
			} catch(PropertyVetoException e) {
				JOptionPane.showMessageDialog(this, "Change vetoed");
			}
		}
	}
}