/*
 * Created on 27-Oct-2004 by Ryan McNally
 */

package com.speckled.specksim.gui.imp;

import java.awt.event.MouseEvent;
import java.util.Iterator;

import com.ryanm.logging.LoggingManager;
import com.speckled.specksim.Speck;
import com.speckled.specksim.SpeckSim;
import com.speckled.specksim.gui.SimGUI;
import com.speckled.specksim.gui.visualiser.GLSelectionListener;
import com.speckled.specksim.gui.visualiser.SpeckVisualiser;
import com.speckled.specksim.imp.specks.AbstractSpeck;

/**
 * This class listens to selection changes in the visualiser, and
 * toggles logging in the selected speck
 * 
 * @author ryanm
 */
public class SpeckLoggingController extends GLSelectionListener
{
	private SpeckSim simulator;

	private SpeckVisualiser visualiser;

	/**
	 * Constructs a controller
	 */
	public SpeckLoggingController()
	{
	}

	@Override
	public void init( SpeckSim simulator, SimGUI gui, SpeckVisualiser visualiser )
	{
		// we need to save a reference to the simulator in order to
		// search through the speck populations later on
		this.simulator = simulator;
		this.visualiser = visualiser;
	}

	@Override
	public void mouseClicked( MouseEvent e )
	{
		int[] nameStack = visualiser.getNameStackUnderMouse();

		// what appears in the namestack depends on what the active
		// StateRenderers put there. For instance, the SpeckRenderer
		// will put on the id of the speck being rendered, the
		// NeighbourhoodRenderer puts on the ids of the two specks
		// involved in a neighbourhood link
		if( nameStack != null && nameStack.length >= 1 )
		{
			int id = nameStack[ 0 ];

			// search the simulator for the speck with the selected id.

			// When iterating over the specks in the simulator, you MUST
			// synchronize on the simulator object. This prevents specks
			// being added or removed during your iteration
			synchronized( simulator )
			{
				Iterator<Speck> specks = simulator.getSpecks();

				while( specks.hasNext() )
				{
					Speck speck = specks.next();

					if( speck.id() == id && speck instanceof AbstractSpeck )
					{
						// Only AbstractSpecks have the setLoggingEnabled()
						// method, so we must check the type of the speck
						// with instanceof before proceeding
						AbstractSpeck as = ( AbstractSpeck ) speck;

						if( as.isLoggingEnabled() )
						{
							as.setLoggingEnabled( false );
							LoggingManager.log( SimGUI.SIM_GUI_LOG_SOURCE, "Logging disabled in speck "
									+ speck.id() );
						}
						else
						{
							as.setLoggingEnabled( true );
							LoggingManager.log( SimGUI.SIM_GUI_LOG_SOURCE, "Logging enabled in speck "
									+ speck.id() );
						}
					}
				}
			}

		}

	}

	@Override
	public String getName()
	{
		return "Speck logging switch";
	}

}