import javax.sound.midi.*;
/**
- * Functional representation of a MIDI note, which contains two MIDI events, note on and note off.
+ * Functional representation of a MIDI note, which adds functionality to the existent MidiEvent class.
+ * Also provides a reference to the corresponding NoteOff event.
*
- * @author Andersson, Andreen, Lanneskog, Pehrson
- * @version 1
+ * @author Einar Pehrson
*/
-public class MooNote {
+public class MooNote extends MidiEvent {
- private MidiEvent noteOn, noteOff;
+ protected MidiEvent noteOffEvent;
+ protected ShortMessage noteOnMsg, noteOffMsg;
/**
- * Creates a MooNote of the given pitch, velocity and length in the current track.
+ * Creates a MooNote from the given NoteOn event in the current track.
+ * @param noteOnEvent the NoteOn event of the note
*/
- public MooNote (int pitch, int velocity, int length) {
+ public MooNote (MidiEvent noteOnEvent) {
+ super(noteOnEvent.getMessage(), noteOnEvent.getTick());
+ noteOnMsg = (ShortMessage)getMessage();
+ }
+
+ /**
+ * Creates a MooNote from the given NoteOn event in the current track and creates a reference to
+ * the corresponding NoteOff event.
+ * @param noteOnEvent the NoteOn event of the note
+ * @param noteOffEvent the NoteOff event of the note
+ */
+ public MooNote (MidiEvent noteOnEvent, MidiEvent noteOffEvent) {
+ super(noteOnEvent.getMessage(), noteOnEvent.getTick());
+ this.noteOffEvent = noteOffEvent;
+ noteOnMsg = (ShortMessage)getMessage();
+ noteOffMsg = (ShortMessage)noteOffEvent.getMessage();
+ }
+ /**
+ * Creates a MooNote of the given pitch, velocity and duration in the current track.
+ * @param channel the channel of the note (1-16)
+ * @param pitch the pitch of the note (0-127)
+ * @param velocity the velocity of the note (0-127)
+ * @param timestamp the timestamp of the note in ticks (96 per beat)
+ * @param duration the duration of the note in ticks (96 per beat)
+ */
+ public MooNote (int channel, int pitch, int velocity, long timestamp, int duration) {
+ super(new ShortMessage(), timestamp);
+ noteOffEvent = new MidiEvent(new ShortMessage(), timestamp + duration);
+ noteOnMsg = (ShortMessage)getMessage();
+ noteOffMsg = (ShortMessage)noteOffEvent.getMessage();
+ try {
+ noteOnMsg.setMessage(ShortMessage.NOTE_ON, channel, pitch, velocity);
+ noteOffMsg.setMessage(ShortMessage.NOTE_OFF, channel, pitch, 0);
+ } catch (InvalidMidiDataException e) {System.out.println("Invalid data!");}
+ }
+
+ /**
+ * Sets the channel of the current note.
+ * @param channel the channel of the note (1-16)
+ */
+ public void setChannel(int channel) {
+ try {
+ noteOnMsg.setMessage(noteOnMsg.getCommand(), (byte)channel, noteOnMsg.getData1(), noteOnMsg.getData2());
+ if(hasNoteOffEvent()) noteOffMsg.setMessage(noteOffMsg.getCommand(), (byte)channel, noteOffMsg.getData1(), noteOffMsg.getData2());
+ } catch (InvalidMidiDataException e) {}
}
/**
* Sets the pitch of the current note.
- + @param pitch the pitch of the note (0-127)
+ * @param pitch the pitch of the note (0-127)
*/
public void setPitch(int pitch) {
-
+ try {
+ noteOnMsg.setMessage(noteOnMsg.getCommand(), noteOnMsg.getChannel(), (byte)pitch, noteOnMsg.getData2());
+ if(hasNoteOffEvent()) noteOffMsg.setMessage(noteOffMsg.getCommand(), noteOffMsg.getChannel(), (byte)pitch, noteOffMsg.getData2());
+ } catch (InvalidMidiDataException e) {}
}
/**
* Sets the velocity of the current note.
- + @param vel the velocity of the note (0-127)
+ * @param vel the velocity of the note (0-127)
*/
public void setVelocity(int vel) {
-
+ try {
+ noteOnMsg.setMessage(noteOnMsg.getCommand(), noteOnMsg.getChannel(), noteOnMsg.getData1(), (byte)vel);
+ if(hasNoteOffEvent()) noteOffMsg.setMessage(noteOffMsg.getCommand(), noteOffMsg.getChannel(), noteOffMsg.getData1(), noteOffMsg.getData2());
+ } catch (InvalidMidiDataException e) {}
}
/**
- * Sets the length of the current note (or rather moves the note off event).
- + @param n the length of the note in ticks (100 per beat)
+ * Sets the duration of the current note (or rather moves the note off event).
+ * @param n the duration of the note in ticks (96 per beat)
*/
- public void setLength(int ticks) {
-
+ public void setDuration(int ticks) {
+ if (hasNoteOffEvent()) noteOffEvent.setTick(getTick() + ticks);
}
/**
- * Returns the note on event of the current note.
- * @return the note on MidiEvent
+ * Sets the timestamp of the current note.
+ * @param tick the timestamp of the note in ticks (96 per beat)
*/
- public MidiEvent getNoteOnEvent() {
-
+ public void setTick(long tick) {
+ if (hasNoteOffEvent()) noteOffEvent.setTick(tick + getDuration());
+ super.setTick(tick);
}
/**
- * Returns the note off event of the current note.
- * @return the note off MidiEvent
+ * Returns the channel of the current note.
+ * @return the channel of the note (1-16)
*/
- public MidiEvent getNoteOffEvent() {
-
+ public int getChannel() {
+ return noteOnMsg.getChannel();
}
/**
* Returns the pitch of the current note.
- * @return the pitch of the note
+ * @return the pitch of the note (0-127)
*/
public int getPitch() {
-
+ return noteOnMsg.getData1();
}
/**
* Returns the velocity of the current note.
- * @return the velocity of the note
+ * @return the velocity of the note (0-127)
*/
public int getVelocity() {
-
+ return noteOnMsg.getData2();
+ }
+
+ /**
+ * Returns the duration of the current note.
+ * @return the duration of the note (in ticks)
+ */
+ public int getDuration() {
+ if (!hasNoteOffEvent()) return 0;
+ return (int)(noteOffEvent.getTick() - getTick());
}
/**
- * Returns the length of the current note.
- * @return the length of the note
+ * Returns whether the NoteOff event was found.
+ * @return the note off MidiEvent
*/
- public int getLength() {
+ public boolean hasNoteOffEvent() {
+ return noteOffEvent != null;
+ }
+
+ /**
+ * Adds this note (both noteOn and noteOffEvents) to a track.
+ * @param track the track it'll be added to.
+ */
+ public void addTo(Track track){
+ track.add(this);
+ if (hasNoteOffEvent()) track.add(noteOffEvent);
+ }
+ /**
+ * Removes this note (both noteOn and noteOffEvents) from a track.
+ * @param track the track it'll be removed from.
+ */
+ public void removeFrom(Track track){
+ track.remove(this);
+ if (hasNoteOffEvent()) track.remove(noteOffEvent);
}
}
projects / moosique.git / blobdiff