Ptidej-v5.2-master/POM Tests/data/ArgoUML_0.28/src/org/argouml/uml/ui/behavior/collaborations/UMLClassifierRoleAvailableContentsListModel.java
// $Id: UMLClassifierRoleAvailableContentsListModel.java 11516 2006-11-25 04:30:15Z tfmorris $
// Copyright (c) 2002-2006 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,
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package org.argouml.uml.ui.behavior.collaborations;

import java.beans.PropertyChangeEvent;
import java.util.Collection;
import java.util.Enumeration;
import java.util.Iterator;

import org.argouml.model.AddAssociationEvent;
import org.argouml.model.Model;
import org.argouml.model.RemoveAssociationEvent;
import org.argouml.uml.ui.UMLModelElementListModel2;
import org.tigris.gef.base.Diagram;
import org.tigris.gef.presentation.Fig;

/**
 * List model which implements allAvailableContents operation for a
 * ClassifierRole as described in the well formedness rules.
 *
 * @author jaap.branderhorst@xs4all.nl
 */
public class UMLClassifierRoleAvailableContentsListModel
    extends UMLModelElementListModel2 {

    /**
     * Constructor for UMLClassifierRoleAvailableContentsListModel.
     */
    public UMLClassifierRoleAvailableContentsListModel() {
        super();
    }

    /*
     * @see org.argouml.uml.ui.UMLModelElementListModel2#buildModelList()
     */
    protected void buildModelList() {
        setAllElements(
            Model.getCollaborationsHelper().allAvailableContents(getTarget()));
    }

    /*
     * @see java.beans.PropertyChangeListener#propertyChange(java.beans.PropertyChangeEvent)
     */
    public void propertyChange(PropertyChangeEvent e) {
        if (e instanceof AddAssociationEvent) {
            if (e.getPropertyName().equals("base")
                    && e.getSource() == getTarget()) {
                Object clazz = getChangedElement(e);
                addAll(Model.getFacade().getOwnedElements(clazz));
                Model.getPump().addModelEventListener(
                                      this,
                                      clazz,
                                      "ownedElement");
            } else if (
                    e.getPropertyName().equals("ownedElement")
                    && Model.getFacade().getBases(getTarget()).contains(
                            e.getSource())) {
                addElement(getChangedElement(e));
            }
        } else if (e instanceof RemoveAssociationEvent) {
            if (e.getPropertyName().equals("base")
                    && e.getSource() == getTarget()) {
                Object clazz = getChangedElement(e);
                Model.getPump().removeModelEventListener(
                        this,
                        clazz,
                    "ownedElement");
            } else if (
                e.getPropertyName().equals("ownedElement")
                && Model.getFacade().getBases(getTarget()).contains(
                       e.getSource())) {
                removeElement(getChangedElement(e));
            }
        } else {
            super.propertyChange(e);
        }
    }

    /*
     * @see org.argouml.uml.ui.UMLModelElementListModel2#setTarget(java.lang.Object)
     */
    public void setTarget(Object theNewTarget) {
        theNewTarget = theNewTarget instanceof Fig
            ? ((Fig) theNewTarget).getOwner() : theNewTarget;
        if (Model.getFacade().isAModelElement(theNewTarget)
                || theNewTarget instanceof Diagram) {
            if (getTarget() != null) {
                Enumeration enumeration = elements();
                while (enumeration.hasMoreElements()) {
                    Object base = enumeration.nextElement();
                    Model.getPump().removeModelEventListener(
                        this,
                        base,
                        "ownedElement");
                }
                Model.getPump().removeModelEventListener(
                    this,
                    getTarget(),
                    "base");
            }
            setListTarget(theNewTarget);
            if (getTarget() != null) {
                Collection bases = Model.getFacade().getBases(getTarget());
                Iterator it = bases.iterator();
                while (it.hasNext()) {
                    Object base =  it.next();
                    Model.getPump().addModelEventListener(
                        this,
                        base,
                        "ownedElement");
                }
                // make sure we know it when a classifier is added as a base
                Model.getPump().addModelEventListener(
                    this,
                    getTarget(),
                    "base");
            }
            if (getTarget() != null) {
                removeAllElements();
                setBuildingModel(true);
                buildModelList();
                setBuildingModel(false);
                if (getSize() > 0) {
                    fireIntervalAdded(this, 0, getSize() - 1);
                }
            }
        }
    }

    /*
     * @see org.argouml.uml.ui.UMLModelElementListModel2#isValidElement(Object)
     */
    protected boolean isValidElement(Object element) {
        return false;
    }
}
