/* $Id: FigEdgeHandler.java 17832 2010-01-12 19:02:29Z 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:

  *    thn

  *****************************************************************************

  *

  * 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,

 // SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING LOST PROFITS,

 // ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF

 // THE UNIVERSITY OF CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF

 // SUCH DAMAGE. THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY

 // WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF

 // MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE

 // PROVIDED HEREUNDER IS ON AN "AS IS" BASIS, AND THE UNIVERSITY OF

 // CALIFORNIA HAS NO OBLIGATIONS TO PROVIDE MAINTENANCE, SUPPORT,

 // UPDATES, ENHANCEMENTS, OR MODIFICATIONS.

 package org.argouml.persistence;

 import java.util.StringTokenizer;

 import org.tigris.gef.persistence.pgml.PGMLStackParser;

 import org.tigris.gef.presentation.Fig;

 import org.tigris.gef.presentation.FigEdge;

 import org.tigris.gef.presentation.FigEdgePoly;

 import org.tigris.gef.presentation.FigLine;

 import org.tigris.gef.presentation.FigPoly;

 import org.xml.sax.SAXException;

 /**

  * The handler for elements that represent FigEdge objects.

  * This extends the base GEF class to allow comment edges to connect

  * to nodes inside other edges.

  * @author Bob Tarling

  */

 class FigEdgeHandler

     extends org.tigris.gef.persistence.pgml.FigEdgeHandler {

     /**

      * @param parser

      * @param theEdge

      */

     public FigEdgeHandler(PGMLStackParser parser, FigEdge theEdge) {

         super(parser, theEdge);

     }

     /**

      * Incorporates a contained element into this FigEdge object.<p>

      *

      * Three types of contained elements are supported: FigLine or FigPoly

      * become the Fig associated with this FigEdge; String valued elements

      * (i.e., <em>private</em> elements) are themselves parsed to determin the

      * source and destination PortFig's for this FigEdge.

      *

      * @see org.tigris.gef.persistence.pgml.Container#addObject(java.lang.Object)

      */

     public void addObject(Object o) throws SAXException {

         FigEdge edge = getFigEdge();

         if (o instanceof FigLine || o instanceof FigPoly) {

             edge.setFig((Fig) o);

             if (o instanceof FigPoly) {

                 ((FigPoly) o).setComplete(true);

             }

             edge.calcBounds();

             if (edge instanceof FigEdgePoly) {

                 ((FigEdgePoly) edge).setInitiallyLaidOut(true);

             }

             edge.updateAnnotationPositions();

         }

         if (o instanceof String) {

             PGMLStackParser parser = getPGMLStackParser();

 //            Fig spf = null;

 //            Fig dpf = null;

 //            FigNode sfn = null;

 //            FigNode dfn = null;

             String body = (String) o;

             StringTokenizer st2 = new StringTokenizer(body, "=\"' \t\n");

             String sourcePortFig = null;

             String destPortFig = null;

             String sourceFigNode = null;

             String destFigNode = null;

             while (st2.hasMoreElements()) {

                 String attribute = st2.nextToken();

                 String value = st2.nextToken();

                 if (attribute.equals("sourcePortFig")) {

                     sourcePortFig = value;

                 }

                 if (attribute.equals("destPortFig")) {

                     destPortFig = value;

                 }

                 if (attribute.equals("sourceFigNode")) {

                     sourceFigNode = value;

                 }

                 if (attribute.equals("destFigNode")) {

                     destFigNode = value;

                 }

             }

             ((org.argouml.persistence.PGMLStackParser) parser).addFigEdge(

                     edge, 

                     sourcePortFig, 

                     destPortFig, 

                     sourceFigNode, 

                     destFigNode);

         }

     }

 }