/*
* JFugue - API for Music Programming
* Copyright (C) 2003-2008 David Koelle
*
* http://www.jfugue.org
*
* 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 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
package org.jfugue.extras;
import java.util.ArrayList;
import java.util.List;
import org.jfugue.Instrument;
import org.jfugue.MusicStringParser;
import org.jfugue.ParserListenerAdapter;
import org.jfugue.Pattern;
/**
* Returns a List<Byte> containing all of the instruments used in the given pattern.
*
*@author David Koelle
*@version 4.0
*
*/
public class GetInstrumentsUsedTool extends ParserListenerAdapter
{
private List<Byte> instruments;
public GetInstrumentsUsedTool()
{
instruments = new ArrayList<Byte>();
}
@Override
public void instrumentEvent(Instrument instrument)
{
byte b = instrument.getInstrument();
if (!instruments.contains(b)) {
instruments.add(b);
}
}
public List<Byte> getInstrumentsUsedInPattern(Pattern pattern)
{
MusicStringParser parser = new MusicStringParser();
parser.addParserListener(this);
parser.parse(pattern);
return instruments;
}
}