package class4_1_Singleton_eventlogger;

import javax.swing.JButton;
import javax.swing.JFrame;

import java.awt.Color;
import java.awt.Container;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

public class UIWindow extends JFrame implements ActionListener {
	private String title;
	
	/**
	 * create a dirt-simple window containing a JButton
	 * @param title the window title
	 */
	public UIWindow( String title ) {
				
		this.title = title;
		// create the containing window and set its size etc
		setTitle(title);
		setSize(300, 200);
		setLocation(400, 400);
		setResizable(false);
		setVisible(true);
		setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

		// Retrieves the window's contentPane and sets the background color to white
		Container contentPane = getContentPane();
//		contentPane.setLayout(null);
		contentPane.setBackground(Color.WHITE);

		//Creation of "DoSomething" button
		JButton doButton;
		doButton = new JButton ("Do Something"); 
		doButton.setActionCommand("doit");
		doButton.setBounds(10, 130, 170, 30);
		doButton.addActionListener(this);	// subscribe to events
		contentPane.add(doButton);

		contentPane.validate();
		contentPane.repaint();
		
	}

	@Override
	/**
	 * override of ActionListener interface implemented by this class;
	 * listens for the JButton press and logs a dumb message using the EventLogWriter.
	 */
	public void actionPerformed(ActionEvent event) {
		System.out.println(title + ": in actionPerformed()");
		// Write the message
		
		// Note: calls getInstance on the event-dispatch thread
		EventLogWriter.getInstance().logEvent(title + " an event occurred");
	}

}