JackEvent.java

package org.herac.tuxguitar.jack.sequencer;

public class JackEvent {

  public static final int ALL_TRACKS = -1;

  public static final int MIDI_EVENT_CONTROL_CHANGE = 5;
  public static final int MIDI_EVENT_NOTEOFF = 3;
  public static final int MIDI_EVENT_NOTEON = 2;
  public static final int MIDI_EVENT_PITCH_BEND = 6;
  public static final int MIDI_EVENT_PROGRAM_CHANGE = 4;
  public static final int MIDI_SYSTEM_EVENT = 1;

  public static JackEvent controlChange(final long tick, final int track,
      final int channel, final int controller, final int value) {
    return new JackEvent(tick, MIDI_EVENT_CONTROL_CHANGE, track, new byte[] {
        (byte) channel, (byte) controller, (byte) value });
  }

  public static JackEvent noteOff(final long tick, final int track,
      final int channel, final int key, final int velocity) {
    return new JackEvent(tick, MIDI_EVENT_NOTEOFF, track, new byte[] {
        (byte) channel, (byte) key, (byte) velocity });
  }

  public static JackEvent noteOn(final long tick, final int track,
      final int channel, final int key, final int velocity) {
    return new JackEvent(tick, MIDI_EVENT_NOTEON, track, new byte[] {
        (byte) channel, (byte) key, (byte) velocity });
  }

  public static JackEvent pitchBend(final long tick, final int track,
      final int channel, final int value) {
    return new JackEvent(tick, MIDI_EVENT_PITCH_BEND, track, new byte[] {
        (byte) channel, (byte) value });
  }

  public static JackEvent programChange(final long tick, final int track,
      final int channel, final int value) {
    return new JackEvent(tick, MIDI_EVENT_PROGRAM_CHANGE, track, new byte[] {
        (byte) channel, (byte) value });
  }

  public static JackEvent systemReset(final long tick) {
    return new JackEvent(tick, MIDI_SYSTEM_EVENT, ALL_TRACKS, null);
  }

  public static JackEvent tempoInUSQ(final long tick, final int usq) {
    return new JackEvent(tick, MIDI_SYSTEM_EVENT, new byte[] { 0x51,
        (byte) (usq & 0xff), (byte) ((usq >> 8) & 0xff),
        (byte) ((usq >> 16) & 0xff) });
  }

  private byte[] data;

  private long tick;

  private int track;

  private int type;

  public JackEvent(long tick, int type, byte[] data) {
    this(tick, type, ALL_TRACKS, data);
  }

  public JackEvent(long tick, int type, int track, byte[] data) {
    this.tick = tick;
    this.type = type;
    this.track = track;
    this.data = data;
  }

  public byte[] getData() {
    return this.data;
  }

  public long getTick() {
    return this.tick;
  }

  public int getTrack() {
    return this.track;
  }

  public int getType() {
    return this.type;
  }
}