//  $Id: BondRadiusRegistry.java,v 1.1 2006/05/20 17:02:02 Sasha Buzko Exp $
//
//  Copyright 2000-2004 The Regents of the University of California.
//  All Rights Reserved.
//
//  Permission to use, copy, modify and distribute any part of this
//  Molecular Biology Toolkit (MBT)
//  for educational, research and non-profit purposes, without fee, and without
//  a written agreement is hereby granted, provided that the above copyright
//  notice, this paragraph and the following three paragraphs appear in all
//  copies.
//
//  Those desiring to incorporate this MBT into commercial products
//  or use for commercial purposes should contact the Technology Transfer &
//  Intellectual Property Services, University of California, San Diego, 9500
//  Gilman Drive, Mail Code 0910, La Jolla, CA 92093-0910, Ph: (858) 534-5815,
//  FAX: (858) 534-7345, E-MAIL:invent@ucsd.edu.
//
//  IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY FOR
//  DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING
//  LOST PROFITS, ARISING OUT OF THE USE OF THIS MBT, EVEN IF THE
//  UNIVERSITY OF CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
//  THE MBT PROVIDED HEREIN IS ON AN "AS IS" BASIS, AND THE
//  UNIVERSITY OF CALIFORNIA HAS NO OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT,
//  UPDATES, ENHANCEMENTS, OR MODIFICATIONS. THE UNIVERSITY OF CALIFORNIA MAKES
//  NO REPRESENTATIONS AND EXTENDS NO WARRANTIES OF ANY KIND, EITHER IMPLIED OR
//  EXPRESS, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
//  MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, OR THAT THE USE OF THE
//  MBT WILL NOT INFRINGE ANY PATENT, TRADEMARK OR OTHER RIGHTS.
//
//  For further information, please see:  http://mbt.sdsc.edu
//
//  History:
//  $Log: BondRadiusRegistry.java,v $
//  Revision 1.1  2006/05/20 17:02:02  Sasha Buzko
//  Updated version
//
//  Revision 1.1  2006/04/30 20:13:58  Sasha Buzko
//  New version of the app
//
//  Revision 1.1  2006/04/15 19:42:22  Sasha Buzko
//  Initial commit
//
//  Revision 1.2  2005/11/22 07:11:29  Administrator
//  *** empty log message ***
//
//  Revision 1.1  2005/11/13 23:44:32  Administrator
//  *** empty log message ***
//
//  Revision 1.3  2004/04/09 00:12:53  moreland
//  Updated copyright to new UCSD wording.
//
//  Revision 1.2  2004/01/29 17:53:40  moreland
//  Updated copyright and class comment block.
//
//  Revision 1.1  2003/12/20 01:37:06  moreland
//  First implementation.
//
//  Revision 1.0  2003/12/19 23:38:39  moreland
//  First version.
//


package edu.sdsc.mbt.viewables;


import java.util.Enumeration;
import java.util.Hashtable;


/**
 *  A class used to register BondRadius implementation objects.
 *  The names of the BondRadius objects can be retrieved and
 *  used in a GUI menu in order for a user to pick the desired
 *  BondRadius algorithm. The retrieved BondRadius object may then be
 *  handed to a StructureStyle instance in order to assocate one
 *  or more Bond representations to a given radius scheme.
 *  <P>
 *  @author	John L. Moreland
 *  @see	edu.sdsc.mbt.viewables.BondRadius
 *  @see	edu.sdsc.mbt.viewables.StructureStyles
 */
public class BondRadiusRegistry
{
	// The registered BondRadius objects
	private static Hashtable bondRadiusObjects = new Hashtable( );

	// The default BondRadius object name
	private static String defaultName = null;

	// Add the well-known BondRadius implementation names.
	static
	{
		add( BondRadiusByAtomRadius.NAME, BondRadiusByAtomRadius.create() );
		add( BondRadiusByScaledAtomRadius.NAME, BondRadiusByScaledAtomRadius.create() );
		add( BondRadiusAsWire.NAME, BondRadiusAsWire.create() );
		add( BondRadiusAsStick.NAME, BondRadiusAsStick.create() );

		defaultName = BondRadiusByAtomRadius.NAME;
	}

	//
	// Registration methods
	//

	/**
	 *  Return the number of registered BondRadius impelementations.
	 */
	public static int count( )
	{
		return bondRadiusObjects.size( );
	}

	/**
	 *  Return the name of the default BondRadius impelementation.
	 */
	public static String getDefaultName( )
	{
		return defaultName;
	}

	/**
	 *  Add a new BondRadius implementation.
	 */
	public static void add( String name, BondRadius bondRadius )
	{
		bondRadiusObjects.put( name, bondRadius );
	}

	/**
	 *  Remove an existing BondRadius implementation.
	 */
	public static void remove( String name )
	{
		bondRadiusObjects.remove( name );
	}

	/**
	 *  Get an BondRadius implementation by name.
	 */
	public static BondRadius get( String name )
	{
		return (BondRadius) bondRadiusObjects.get( name );
	}

	/**
	 *  Get the default BondRadius implementation.
	 */
	public static BondRadius getDefault( )
	{
		return (BondRadius) bondRadiusObjects.get( defaultName );
	}

	/**
	 *  Return an Enumeration of String values for all registered
	 *  BondRadius objects.
	 */
	public static Enumeration names( )
	{
		return bondRadiusObjects.keys( );
	}
}