Open Source Projects Europe

package utils;
/**
 * Class derived from:
 * http://www.java2s.com/Tutorial/Java/0240__Swing/SortedListModelsortableJList.htm
 */

import java.util.*;
import javax.swing.AbstractListModel;

public class SortedListModel extends AbstractListModel {
  SortedSet<Object> model;

  public SortedListModel() {
    model = new TreeSet<Object>();
  }

    @Override
  public int getSize() {
    return model.size();
  }

    @Override
  public Object getElementAt(int index) {
    return model.toArray()[index];
  }

  public void add(Object element) {
    if (model.add(element)) {
      fireContentsChanged(this, 0, getSize());
  }
}
  public void addAll(Object elements[]) {
    Collection<Object> c = Arrays.asList(elements);
    model.addAll(c);
    fireContentsChanged(this, 0, getSize());
  }

  public void clear() {
    model.clear();
    fireContentsChanged(this, 0, getSize());
  }

  public boolean contains(Object element) {
    return model.contains(element);
  }

  public Object firstElement() {
    return model.first();
  }

  public Iterator iterator() {
    return model.iterator();
  }

  public Object lastElement() {
    return model.last();
  }

  public boolean removeElement(Object element) {
    boolean removed = model.remove(element);
    if (removed) {
      fireContentsChanged(this, 0, getSize());
    }
    return removed;
  }
}