/*
 *  JFLAP - Formal Languages and Automata Package
 * 
 * 
 *  Susan H. Rodger
 *  Computer Science Department
 *  Duke University
 *  August 27, 2009

 *  Copyright (c) 2002-2009
 *  All rights reserved.

 *  JFLAP is open source software. Please see the LICENSE for terms.
 *
 */





package gui.sim;

import automata.Configuration;
import automata.fsa.FSAConfiguration;
import automata.pda.PDAConfiguration;
import automata.turing.TMConfiguration;

/**
 * This is a configuration icon factory. Given a configuration, it returns the
 * appropriate icon.
 * 
 * @author Thomas Finley
 */

public class ConfigurationIconFactory {
	/**
	 * Returns an instance of an appropriate subclass of the configuration icon
	 * for this sort of configuration.
	 * 
	 * @param configuration
	 *            the configuration to return the icon for
	 * @return some instance of a subclass of <CODE>ConfigurationIcon</CODE>,
	 *         or <CODE>null</CODE> if this factory is not set up to handle
	 *         this sort of configuration
	 */
	public static ConfigurationIcon iconForConfiguration(
			Configuration configuration) {
		if (configuration instanceof FSAConfiguration)
			return new FSAConfigurationIcon(configuration);
		else if (configuration instanceof PDAConfiguration)
			return new PDAConfigurationIcon(configuration);
		else if (configuration instanceof TMConfiguration)
			return new TMConfigurationIcon(configuration);
        else if(configuration instanceof automata.mealy.MealyConfiguration)
            return new MealyConfigurationIcon(configuration);
		return null;
	}
}