/*
* Sequence.java
*
* This file is part of Tritonus: http://www.tritonus.org/
*/
/*
* Copyright (c) 1999, 2000 by Matthias Pfisterer
*
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Library General Public License as published
* by the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
/*
|<--- this code is formatted to fit into 80 columns --->|
*/
package javax.sound.midi;
import java.util.Iterator;
import java.util.Vector;
// TODO: some synchronization now obsolete? (after change from ArrayList to Vector)
public class Sequence
{
public static final float PPQ = 0.0F;
public static final float SMPTE_24 = 24.0F;
public static final float SMPTE_25 = 25.0F;
public static final float SMPTE_30DROP = 29.97F;
public static final float SMPTE_30 = 30.0F;
private static final Track[] EMPTY_TRACK_ARRAY = new Track[0];
protected float divisionType;
protected int resolution;
protected Vector tracks;
public Sequence(float fDivisionType,
int nResolution)
throws InvalidMidiDataException
{
this(fDivisionType, nResolution, 0);
}
public Sequence(float fDivisionType,
int nResolution,
int nNumTracks)
throws InvalidMidiDataException
{
if (fDivisionType == PPQ || fDivisionType == SMPTE_24 || fDivisionType == SMPTE_25 || fDivisionType == SMPTE_30DROP || fDivisionType == SMPTE_30)
{
divisionType = fDivisionType;
}
else
{
throw new InvalidMidiDataException("Invalid division type: " + fDivisionType);
}
resolution = nResolution;
tracks = new Vector();
for (int i = 0; i < nNumTracks; i++)
{
createTrack();
}
}
public float getDivisionType()
{
return divisionType;
}
public int getResolution()
{
return resolution;
}
@SuppressWarnings("unchecked")
public Track createTrack()
{
Track track = new Track();
synchronized (tracks)
{
tracks.add(track);
}
return track;
}
public boolean deleteTrack(Track track)
{
synchronized (tracks)
{
return tracks.remove(track);
}
}
@SuppressWarnings("unchecked")
public Track[] getTracks()
{
synchronized (tracks)
{
return (Track[]) tracks.toArray(EMPTY_TRACK_ARRAY);
}
}
public long getMicrosecondLength()
{
if (getDivisionType() != PPQ)
{
return (long) (getTickLength() * 1000000 / (getDivisionType() * getResolution()));
}
else
{
// TODO: find all tempo change events and calculate length according to them.
return -1;
}
}
public long getTickLength()
{
long lLength = 0;
Iterator tracksIterator = tracks.iterator();
while (tracksIterator.hasNext())
{
Track track = (Track) tracksIterator.next();
lLength = Math.max(lLength, track.ticks());
}
return lLength;
}
// make abstract ??
public Patch[] getPatchList()
{
// TODO:
// not implemented in sun version, too
return new Patch[0];
}
}
/*** Sequence.java ***/