Ptidej-v5.2-master/POM Tests/data/ArgoUML_0.28/src/org/argouml/uml/ui/behavior/common_behavior/PropPanelLink.java
// $Id: PropPanelLink.java 15837 2008-09-30 23:53:25Z bobtarling $
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// software and its documentation without fee, and without a written
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package org.argouml.uml.ui.behavior.common_behavior;

import java.awt.event.ActionEvent;
import java.beans.PropertyChangeEvent;
import java.util.Collection;
import java.util.HashSet;
import java.util.Iterator;

import javax.swing.Action;
import javax.swing.JComboBox;
import javax.swing.JComponent;
import javax.swing.JList;
import javax.swing.JScrollPane;

import org.argouml.i18n.Translator;
import org.argouml.model.Model;
import org.argouml.model.UmlChangeEvent;
import org.argouml.uml.ui.ActionNavigateNamespace;
import org.argouml.uml.ui.UMLComboBox2;
import org.argouml.uml.ui.UMLComboBoxModel2;
import org.argouml.uml.ui.UMLComboBoxNavigator;
import org.argouml.uml.ui.UMLLinkedList;
import org.argouml.uml.ui.UMLSearchableComboBox;
import org.argouml.uml.ui.foundation.core.PropPanelModelElement;
import org.argouml.uml.ui.foundation.extension_mechanisms.ActionNewStereotype;
import org.tigris.gef.undo.UndoableAction;

/**
 * The properties panel for a Link.
 *
 */
public class PropPanelLink extends PropPanelModelElement {

    private JComboBox associationSelector;
    private UMLLinkAssociationComboBoxModel associationComboBoxModel =
        new UMLLinkAssociationComboBoxModel();

    /**
     * Construct a property panel for a Link element.
     */
    public PropPanelLink() {
        super("label.link", lookupIcon("Link"));

        addField(Translator.localize("label.name"),
                getNameTextField());
        addField(Translator.localize("label.namespace"),
                getNamespaceSelector());
        addField(Translator.localize("label.association"),
                getAssociationSelector());
        addSeparator();

        JList connectionList =
            new UMLLinkedList(new UMLLinkConnectionListModel());
        JScrollPane connectionScroll = new JScrollPane(connectionList);
        addField(Translator.localize("label.connections"),
                connectionScroll);

        addAction(new ActionNavigateNamespace());
        addAction(new ActionNewStereotype());
        addAction(getDeleteAction());
    }

    /**
     * Returns the namespace selecter. This is a component which allows the
     * user to select a single item as the namespace.
     *
     * @return a component for selecting the namespace
     */
    protected JComponent getAssociationSelector() {
        if (associationSelector == null) {
            associationSelector =
                new UMLSearchableComboBox(
                    associationComboBoxModel,
                    new ActionSetLinkAssociation(), true);
        }
        return new UMLComboBoxNavigator(
                Translator.localize("label.association.navigate.tooltip"),
                associationSelector);
    }

    /**
     * The UID.
     */
    private static final long serialVersionUID = 8861148331491989705L;
} /* end class PropPanelLink */

/**
 * The model for the combobox to show the Association of the Link.
 *
 * @author Michiel
 */
class UMLLinkAssociationComboBoxModel extends UMLComboBoxModel2 {

    /**
     * Constructor for UMLModelElementNamespaceComboBoxModel.
     */
    public UMLLinkAssociationComboBoxModel() {
        super("assocation", true);
    }

    /*
     * @see org.argouml.uml.ui.UMLComboBoxModel2#isValidElement(Object)
     */
    protected boolean isValidElement(Object o) {
        return Model.getFacade().isAAssociation(o);
    }

    /**
     * To simplify implementation, we list all associations
     * found with any of the Classifiers
     * represented by the linked Instances. <p>
     *
     * TODO: Make a foolproof algorithm that only allows selecting associations
     * that create a correct model. Also take into account n-ary associations
     * and associationclasses. This algo best goes in the model subsystem, e.g.
     * in a method getAllPossibleAssociationsForALink().
     *
     * @see org.argouml.uml.ui.UMLComboBoxModel2#buildModelList()
     */
    protected void buildModelList() {
        Collection linkEnds;
        Collection associations = new HashSet();
        Object t = getTarget();
        if (Model.getFacade().isALink(t)) {
            linkEnds = Model.getFacade().getConnections(t);
            Iterator ile = linkEnds.iterator();
            while (ile.hasNext()) {
                Object instance = Model.getFacade().getInstance(ile.next());
                Collection c = Model.getFacade().getClassifiers(instance);
                Iterator ic = c.iterator();
                while (ic.hasNext()) {
                    Object classifier = ic.next();
                    Collection ae =
                        Model.getFacade().getAssociationEnds(classifier);
                    Iterator iae = ae.iterator();
                    while (iae.hasNext()) {
                        Object associationEnd = iae.next();
                        Object association =
                            Model.getFacade().getAssociation(associationEnd);
                        associations.add(association);
                    }
                }
            }
        }
        setElements(associations);
    }

    /*
     * @see org.argouml.uml.ui.UMLComboBoxModel2#getSelectedModelElement()
     */
    protected Object getSelectedModelElement() {
        if (Model.getFacade().isALink(getTarget())) {
            return Model.getFacade().getAssociation(getTarget());
        }
        return null;
    }

    /*
    * @see java.beans.PropertyChangeListener#propertyChange(java.beans.PropertyChangeEvent)
    */
    @Override
    public void modelChanged(UmlChangeEvent evt) {
        /*
         * Rebuild the list from scratch to be sure it's correct.
         */
        Object t = getTarget();
        if (t != null
                && evt.getSource() == t
                && evt.getNewValue() != null) {
            buildModelList();
            /* In some cases (se issue 3780) the list remains the same, but
             * the selected item differs. Without the next step,
             * the combo would not be refreshed.
             */
            setSelectedItem(getSelectedModelElement());
        }
    }

    /**
     * The UID.
     */
    private static final long serialVersionUID = 3232437122889409351L;
}

class ActionSetLinkAssociation extends UndoableAction {

    /**
     * Constructor for ActionSetModelElementNamespace.
     */
    public ActionSetLinkAssociation() {
        super(Translator.localize("Set"), null);
		// Set the tooltip string:
        putValue(Action.SHORT_DESCRIPTION, Translator.localize("Set"));
    }

    /*
     * @see java.awt.event.ActionListener#actionPerformed(java.awt.event.ActionEvent)
     */
    @Override
    public void actionPerformed(ActionEvent e) {
    	super.actionPerformed(e);
        Object source = e.getSource();
        Object oldAssoc = null;
        Object newAssoc = null;
        Object link = null;
        if (source instanceof UMLComboBox2) {
            UMLComboBox2 box = (UMLComboBox2) source;
            Object o = box.getTarget();
            if (Model.getFacade().isALink(o)) {
                link = o;
                oldAssoc = Model.getFacade().getAssociation(o);
            }
            Object n = box.getSelectedItem();
            if (Model.getFacade().isAAssociation(n)) {
                newAssoc = n;
            }
        }
        if (newAssoc != oldAssoc && link != null && newAssoc != null) {
            Model.getCoreHelper().setAssociation(link, newAssoc);
        }
    }

    /**
     * The UID.
     */
    private static final long serialVersionUID = 6168167355078835252L;
}
