Application: gvSIG desktop

package com.iver.cit.gvsig.gui;

import java.beans.PropertyChangeEvent;

import java.beans.PropertyChangeListener;

import java.util.ArrayList;

import javax.swing.ListModel;

import javax.swing.event.ListDataEvent;

import javax.swing.event.ListDataListener;

import com.iver.cit.gvsig.project.Project;

public class ExtentListSelectorModel implements ListModel, PropertyChangeListener {

        private Project project;

        private ArrayList listeners = new ArrayList();

        public ExtentListSelectorModel(Project p){

                project = p;

        }

        /**

         * @see javax.swing.ListModel#getSize()

         */

        public int getSize() {

                return project.getExtents().length;

        }

        /**

         * @see javax.swing.ListModel#getElementAt(int)

         */

        public Object getElementAt(int arg0) {

                return project.getExtents()[arg0];

        }

        /* (non-Javadoc)

         * @see javax.swing.ListModel#addListDataListener(javax.swing.event.ListDataListener)

         */

        public void addListDataListener(ListDataListener arg0) {

                listeners.add(arg0);

        }

        /**

         * @see javax.swing.ListModel#removeListDataListener(javax.swing.event.ListDataListener)

         */

        public void removeListDataListener(ListDataListener arg0) {

                listeners.remove(arg0);

        }

        /* (non-Javadoc)

         * @see java.beans.PropertyChangeListener#propertyChange(java.beans.PropertyChangeEvent)

         */

        public void propertyChange(PropertyChangeEvent change) {

                if (change.getPropertyName().equals("addExtent")){

                        ListDataEvent event = new ListDataEvent(this, ListDataEvent.INTERVAL_ADDED, 0, getSize());

                        for (int i = 0; i < listeners.size(); i++){

                                ((ListDataListener) listeners.get(i)).intervalAdded(event);

                        }

                }else{

                        ListDataEvent event = new ListDataEvent(this, ListDataEvent.INTERVAL_ADDED, 0, getSize());

                        for (int i = 0; i < listeners.size(); i++){

                                ((ListDataListener) listeners.get(i)).intervalRemoved(event);

                        }

                }

        }

}