/* $Id: UMLAssociationConnectionListModel.java 17897 2010-01-12 21:36:40Z 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:
* mvw
*****************************************************************************
*
* 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
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// 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.ui.foundation.core;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Iterator;
import java.util.List;
import org.argouml.model.Model;
import org.argouml.uml.ui.UMLModelElementOrderedListModel2;
/**
* The list model for the connections of the association. <p>
*
* The specialty of this list model, is that it need to be aware
* of name changes in the ends connected to the association.
* Most other listmodels only listen to
* model changes in one UML element, but in this case, we also have to listen to
* changes in some related elements. <p>
*
* Why is this case different: because it is possible to modify the
* associationend names on the diagram, without changing the target - i.e.
* the target remains the association throughout this modification.
*
* @author jaap.branderhorst@xs4all.nl
* @since Jan 4, 2003
*/
public class UMLAssociationConnectionListModel
extends UMLModelElementOrderedListModel2 {
private Collection others;
/**
* Constructor for UMLModelElementClientDependencyListModel.
*/
public UMLAssociationConnectionListModel() {
super("connection");
}
/*
* @see org.argouml.uml.ui.UMLModelElementListModel2#addOtherModelEventListeners(java.lang.Object)
*/
protected void addOtherModelEventListeners(Object newTarget) {
super.addOtherModelEventListeners(newTarget);
/* Make a copy of the modelelements: */
others = new ArrayList(Model.getFacade().getConnections(newTarget));
Iterator i = others.iterator();
while (i.hasNext()) {
Object end = i.next();
Model.getPump().addModelEventListener(this, end, "name");
}
}
/*
* @see org.argouml.uml.ui.UMLModelElementListModel2#removeOtherModelEventListeners(java.lang.Object)
*/
protected void removeOtherModelEventListeners(Object oldTarget) {
super.removeOtherModelEventListeners(oldTarget);
Iterator i = others.iterator();
while (i.hasNext()) {
Object end = i.next();
Model.getPump().removeModelEventListener(this, end, "name");
}
others.clear();
}
/*
* @see org.argouml.uml.ui.UMLModelElementListModel2#buildModelList()
*/
protected void buildModelList() {
if (getTarget() != null) {
setAllElements(Model.getFacade().getConnections(getTarget()));
}
}
/*
* @see org.argouml.uml.ui.UMLModelElementListModel2#isValidElement(Object)
*/
protected boolean isValidElement(Object o) {
return Model.getFacade().isAAssociationEnd(o)
&& Model.getFacade().getConnections(getTarget()).contains(o);
}
/*
* @see org.argouml.uml.ui.UMLModelElementOrderedListModel2#moveDown(int)
*/
protected void moveDown(int index) {
Object assoc = getTarget();
/* Since we are UML 1.4, this is surely a List! */
List c = (List) Model.getFacade().getConnections(assoc);
if (index < c.size() - 1) {
Object mem = c.get(index);
Model.getCoreHelper().removeConnection(assoc, mem);
Model.getCoreHelper().addConnection(assoc, index + 1, mem);
}
}
/**
* @see org.argouml.uml.ui.UMLModelElementOrderedListModel2#moveToBottom(int)
*/
@Override
protected void moveToBottom(int index) {
Object assoc = getTarget();
/* Since we are UML 1.4, this is surely a List! */
List c = (List) Model.getFacade().getConnections(assoc);
if (index < c.size() - 1) {
Object mem1 = c.get(index);
Model.getCoreHelper().removeConnection(assoc, mem1);
Model.getCoreHelper().addConnection(assoc, c.size() - 1, mem1);
}
}
/**
* @see org.argouml.uml.ui.UMLModelElementOrderedListModel2#moveToTop(int)
*/
@Override
protected void moveToTop(int index) {
Object assoc = getTarget();
/* Since we are UML 1.4, this is surely a List! */
List c = (List) Model.getFacade().getConnections(assoc);
if (index > 0) {
Object mem1 = c.get(index);
Model.getCoreHelper().removeConnection(assoc, mem1);
Model.getCoreHelper().addConnection(assoc, 0, mem1);
}
}
}