MidiEventDispacher.java

package org.herac.tuxguitar.player.impl.sequencer;

import org.herac.tuxguitar.player.base.MidiPlayerException;

public class MidiEventDispacher {
  private MidiSequencerImpl sequencer;

  public MidiEventDispacher(MidiSequencerImpl sequencer) {
    this.sequencer = sequencer;
  }

  public void dispatch(MidiEvent event) throws MidiPlayerException {
    if (event.getType() == MidiEvent.MIDI_EVENT_NOTEON) {
      this.sequencer.getTransmitter().sendNoteOn(event.getData()[0],
          event.getData()[1], event.getData()[2]);
    } else if (event.getType() == MidiEvent.MIDI_EVENT_NOTEOFF) {
      this.sequencer.getTransmitter().sendNoteOff(event.getData()[0],
          event.getData()[1], event.getData()[2]);
    } else if (event.getType() == MidiEvent.MIDI_EVENT_CONTROL_CHANGE) {
      this.sequencer.getTransmitter().sendControlChange(event.getData()[0],
          event.getData()[1], event.getData()[2]);
    } else if (event.getType() == MidiEvent.MIDI_EVENT_PROGRAM_CHANGE) {
      this.sequencer.getTransmitter().sendProgramChange(event.getData()[0],
          event.getData()[1]);
    } else if (event.getType() == MidiEvent.MIDI_EVENT_PITCH_BEND) {
      this.sequencer.getTransmitter().sendPitchBend(event.getData()[0],
          event.getData()[1]);
    } else if (event.getType() == MidiEvent.MIDI_SYSTEM_EVENT) {
      if (event.getData()[0] == 0x51) {
        int usq = ((event.getData()[1] & 0xff)
            | ((event.getData()[2] & 0xff) << 8) | ((event.getData()[3] & 0xff) << 16));
        this.sequencer.setTempo((int) ((60.00 * 1000.00) / (usq / 1000.00)));
      }
    }
  }
}