/* $Id: ActionAddClassifierRole.java 17855 2010-01-12 19:56:54Z linus $
 *****************************************************************************
 * Copyright (c) 2009 Contributors - see below
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *    tfmorris
 *****************************************************************************
 *
 * Some portions of this file was previously release using the BSD License:
 */

// Copyright (c) 1996-2006 The Regents of the University of California. All
// Rights Reserved. Permission to use, copy, modify, and distribute this
// software and its documentation without fee, and without a written
// agreement is hereby granted, provided that the above copyright notice
// and this paragraph appear in all copies.  This software program and
// documentation are copyrighted by The Regents of the University of
// California. The software program and documentation are supplied "AS
// IS", without any accompanying services from The Regents. The Regents
// does not warrant that the operation of the program will be
// uninterrupted or error-free. The end-user understands that the program
// was developed for research purposes and is advised not to rely
// exclusively on the program for any reason.  IN NO EVENT SHALL THE
// UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY FOR DIRECT, INDIRECT,
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package org.argouml.uml.diagram.collaboration.ui;

import org.argouml.model.Model;
import org.argouml.ui.CmdCreateNode;
import org.argouml.uml.diagram.collaboration.CollabDiagramGraphModel;
import org.tigris.gef.base.Editor;
import org.tigris.gef.base.Globals;
import org.tigris.gef.graph.GraphModel;

/**
 * Action to add a classifier role to a collaboration diagram.
 * Based on org.argouml.uml.diagram.sequence.ui.ActionAddClassifierRole
 */
public class ActionAddClassifierRole extends CmdCreateNode {

    private static final long serialVersionUID = 8939546123926523391L;

    /**
     * The constructor.
     */
    public ActionAddClassifierRole() {
        super(Model.getMetaTypes().getClassifierRole(),
                "button.new-classifierrole");
    }

    /*
     * @see org.tigris.gef.graph.GraphFactory#makeNode()
     */
    public Object makeNode() {
        Object node = null;
        Editor ce = Globals.curEditor();
        GraphModel gm = ce.getGraphModel();
        if (gm instanceof CollabDiagramGraphModel) {
            Object collaboration =
                ((CollabDiagramGraphModel) gm).getHomeModel();
            node =
                Model.getCollaborationsFactory().buildClassifierRole(
                        collaboration);
        } else {
            throw new IllegalStateException("Graphmodel is not a "
                    + "collaboration diagram graph model");
        }
        return node;
    }
}