/*
*
* Copyright (c) 2006-2007 Paul John Leonard
*
* http://www.frinika.com
*
* This file is part of Frinika.
*
* Frinika is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* Frinika 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Frinika; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package com.frinika.sequencer.model.util;
import java.util.Iterator;
import java.util.SortedSet;
import com.frinika.sequencer.model.MultiEvent;
public class EventIterator implements Iterator<MultiEvent> {
Iterator<MultiEvent> eIter;
MultiEvent next=null;
private EventFilter filter;
public EventIterator(SortedSet<MultiEvent> list,EventFilter filter) {
eIter= list.iterator();
this.filter=filter;
seekNext();
}
public boolean hasNext() {
return next != null ;
}
private void seekNext() {
while(eIter.hasNext()) {
if (filter.isValidEvent((next=eIter.next()))) return;
}
next=null;
}
public MultiEvent next() {
MultiEvent tmp=next;
seekNext();
return tmp;
}
public void remove() {
throw new UnsupportedOperationException();
}
}