/*
Copyright (C) 2003 EBI, GRL
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package org.ensembl.mart.explorer;
import java.util.ArrayList;
import java.util.List;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;
/**
* Manages a list of ChangeListeners and provides a method for
* sending events to them all.
**/
public class ChangeListenerManager {
private List changeListeners = new ArrayList();
public void addChangeListener(ChangeListener listener) {
changeListeners.add( listener );
}
public boolean removeChangeListener(ChangeListener listener) {
return changeListeners.remove( listener );
}
public void stateChanged( ChangeEvent event ) {
for (int i = 0, n = changeListeners.size(); i < n; i++) {
ChangeListener listener = (ChangeListener) changeListeners.get(i);
listener.stateChanged( event );
}
}
}