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The source code

// $Id: UMLStructuralFeatureTypeComboBoxModel.java,v 1.12 2004/06/24 06:25:46 linus Exp $
// Copyright (c) 1996-2004 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.uml.ui.foundation.core;

import java.util.Collection;
import java.util.Comparator;
import java.util.HashSet;
import java.util.Iterator;
import java.util.Set;
import java.util.TreeSet;

import org.argouml.kernel.Project;
import org.argouml.kernel.ProjectManager;
import org.argouml.model.ModelFacade;
import org.argouml.model.uml.UmlModelEventPump;
import org.argouml.model.uml.modelmanagement.ModelManagementHelper;
import org.argouml.uml.ui.UMLComboBoxModel2;

/**
 * The combobox model for the type belonging to some attribute.
 * @since Nov 2, 2002
 * @author jaap.branderhorst@xs4all.nl
 */
public class UMLStructuralFeatureTypeComboBoxModel extends UMLComboBoxModel2 {

    /**
     * Constructor for UMLStructuralFeatureTypeComboBoxModel.
     */
    public UMLStructuralFeatureTypeComboBoxModel() {
        super("type", false);
        UmlModelEventPump.getPump()
	    .addClassModelEventListener(this,
					(Class) ModelFacade.NAMESPACE,
					"ownedElement");
    }

    /**
     * @see org.argouml.uml.ui.UMLComboBoxModel2#isValidElement(Object)
     */
    protected boolean isValidElement(Object element) {
        return org.argouml.model.ModelFacade.isAClassifier(element);
    }

    /**
     * Helper method for buildModelList
     *
     * 

Adds those elements from source that do not have the same path as * any path in paths to elements, and its path to paths. Thus elements * will never contain two objects with the same path, unless they are * added by other means. */ private static void addAllUniqueModelElementsFrom(Set elements, Set paths, Collection source) { Iterator it2 = source.iterator(); while (it2.hasNext()) { Object obj = it2.next(); Object path = ModelManagementHelper.getHelper().getPath(obj); if (!paths.contains(path)) { paths.add(path); elements.add(obj); } } } /** * @see org.argouml.uml.ui.UMLComboBoxModel2#buildModelList() */ protected void buildModelList() { Set paths = new HashSet(); Set elements = new TreeSet(new Comparator() { public int compare(Object o1, Object o2) { try { String name1 = ModelFacade.getName(o1); String name2 = ModelFacade.getName(o2); name1 = (name1 != null ? name1 : ""); name2 = (name2 != null ? name2 : ""); return name1.compareTo(name2); } catch (Exception e) { throw new ClassCastException(e.getMessage()); } } }); Project p = ProjectManager.getManager().getCurrentProject(); Iterator it = p.getUserDefinedModels().iterator(); while (it.hasNext()) { Object model = /*(MModel)*/ it.next(); addAllUniqueModelElementsFrom( elements, paths, ModelManagementHelper.getHelper().getAllModelElementsOfKind( model, (Class) ModelFacade.CLASSIFIER)); } addAllUniqueModelElementsFrom( elements, paths, ModelManagementHelper.getHelper().getAllModelElementsOfKind( p.getDefaultModel(), (Class) ModelFacade.CLASSIFIER)); setElements(elements); } /** * @see org.argouml.uml.ui.UMLComboBoxModel2#getSelectedModelElement() */ protected Object getSelectedModelElement() { Object o = null; if (getTarget() != null) { o = org.argouml.model.ModelFacade.getType(getTarget()); } if (o == null) { o = " "; } return o; } }

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