/*

  * Created on Aug 10, 2007 by wyatt

  */

 package org.homeunix.thecave.buddi.model.swing;

 import java.util.AbstractList;

 import java.util.ArrayList;

 import java.util.Collections;

 import java.util.HashSet;

 import java.util.List;

 import java.util.Set;

 import org.homeunix.thecave.buddi.model.Document;

 import org.homeunix.thecave.buddi.model.Transaction;

 import ca.digitalcave.moss.application.document.DocumentChangeEvent;

 import ca.digitalcave.moss.application.document.DocumentChangeListener;

 public class DescriptionList extends AbstractList<String> {

         private static final long serialVersionUID = 0; 

         private Document model;

         private final DocumentChangeListener listener;

         private final List<String> descriptionList;

         private final Set<String> descriptions = new HashSet<String>();

         public DescriptionList(Document model) {

                 this.model = model;

                 this.descriptionList = new ArrayList<String>();

                 updateAutoCompleteList();

                 listener = new DocumentChangeListener(){

                         public void documentChange(DocumentChangeEvent event) {

                                 updateAutoCompleteList();                                

                         }

                 };

                 model.addDocumentChangeListener(listener);

         }

         @Override

         public String get(int index) {

                 return descriptionList.get(index);

         }

         @Override

         public int size() {

                 return descriptionList.size();

         }

         private void updateAutoCompleteList(){

                 descriptions.clear();

                 for (Transaction t : model.getTransactions()) {

                         descriptions.add(t.getDescription());

                 }

                 descriptionList.clear();

                 descriptionList.addAll(descriptions);

                 Collections.sort(descriptionList);

         }

 }