package jadex.bdi.examples.cleanerworld.cleaner;

import jadex.bdi.runtime.IBDIExternalAccess;
import jadex.bdi.runtime.IBDIInternalAccess;
import jadex.bridge.IComponentListener;
import jadex.bridge.IComponentStep;
import jadex.bridge.IInternalAccess;
import jadex.commons.ChangeEvent;
import jadex.commons.SGUI;

import java.awt.BorderLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;

import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.SwingUtilities;
import javax.swing.Timer;


/**
 *  The GUI for the cleaner world example.
 *  Shows the world from the viewpoint of a single agent.
 */
public class CleanerGui	extends JFrame
{
	//-------- constructors --------

	/**
	 *  Shows the gui, and updates it when beliefs change.
	 */
	public CleanerGui(final IBDIExternalAccess agent)
	{
		super(agent.getComponentIdentifier().getName());
		final JPanel map = new CleanerPanel(agent);

		getContentPane().add(BorderLayout.CENTER, map);
		setSize(300, 300);
		setLocation(SGUI.calculateMiddlePosition(this));
		setVisible(true);
		addWindowListener(new WindowAdapter()
		{
			public void windowClosing(WindowEvent e)
			{
				agent.killComponent();
			}
		});		
		
		agent.scheduleStep(new IComponentStep()
		{
			public Object execute(IInternalAccess ia)
			{
				IBDIInternalAccess bia = (IBDIInternalAccess)ia;
				bia.addComponentListener(new IComponentListener()
				{
					public void componentTerminating(ChangeEvent ae)
					{
						SwingUtilities.invokeLater(new Runnable()
						{
							public void run()
							{
								dispose();
							}
						});
					}
					
					public void componentTerminated(ChangeEvent ae)
					{
					}
				});
				return null;
			}
		});
		
		Timer	timer	= new Timer(50, new ActionListener()
		{
			public void actionPerformed(ActionEvent e)
			{
				map.invalidate();
				map.repaint();
			}
		});
		timer.start();
	}		
}