import javax.sound.midi.*;
/**
- * Functional representation of a MIDI note, which adds functionality to the existent MidiEvent class.
+ * Functional representation of a MIDI note, which adds functionality to the existing MidiEvent class.
* Also provides a reference to the corresponding NoteOff event.
*
* @author Einar Pehrson
*/
-public class MooNote extends MidiEvent {
+public class MooNote extends MidiEvent implements Cloneable, Comparable {
- protected MidiEvent noteOffEvent;
- protected ShortMessage noteOnMsg, noteOffMsg;
-
- /**
- * Creates a MooNote from the given NoteOn event in the current track.
- * @param noteOnEvent the NoteOn event of the note
- */
- public MooNote (MidiEvent noteOnEvent) {
- super(noteOnEvent.getMessage(), noteOnEvent.getTick());
- noteOnMsg = (ShortMessage)getMessage();
- }
+ private MidiEvent noteOffEvent;
+ private ShortMessage noteOnMsg, noteOffMsg;
/**
* Creates a MooNote from the given NoteOn event in the current track and creates a reference to
noteOffMsg = (ShortMessage)noteOffEvent.getMessage();
try {
noteOnMsg.setMessage(ShortMessage.NOTE_ON, channel, pitch, velocity);
- noteOffMsg.setMessage(ShortMessage.NOTE_OFF, channel, pitch, 0);
+ noteOffMsg.setMessage(ShortMessage.NOTE_OFF, channel, pitch, 64);
} catch (InvalidMidiDataException e) {System.out.println("Invalid data!");}
}
+ /**
+ * Returns the note off event of this note.
+ * @return the note off event
+ */
+ public MidiEvent getNoteOffEvent() {
+ return noteOffEvent;
+ }
+
+ /**
+ * Returns the channel of the current note.
+ * @return the channel of the note (1-16)
+ */
+ public int getChannel() {
+ return noteOnMsg.getChannel();
+ }
+
+ /**
+ * Returns the pitch of the current 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 (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() {
+ return (int)(noteOffEvent.getTick() - getTick());
+ }
+
/**
* 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());
+ noteOffMsg.setMessage(noteOffMsg.getCommand(), (byte)channel, noteOffMsg.getData1(), noteOffMsg.getData2());
} catch (InvalidMidiDataException e) {}
}
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());
+ noteOffMsg.setMessage(noteOffMsg.getCommand(), noteOffMsg.getChannel(), (byte)pitch, noteOffMsg.getData2());
} catch (InvalidMidiDataException e) {}
}
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());
+ noteOffMsg.setMessage(noteOffMsg.getCommand(), noteOffMsg.getChannel(), noteOffMsg.getData1(), noteOffMsg.getData2());
} catch (InvalidMidiDataException e) {}
}
* @param n the duration of the note in ticks (96 per beat)
*/
public void setDuration(int ticks) {
- if (hasNoteOffEvent()) noteOffEvent.setTick(getTick() + ticks);
+ noteOffEvent.setTick(getTick() + ticks);
}
/**
* @param tick the timestamp of the note in ticks (96 per beat)
*/
public void setTick(long tick) {
- if (hasNoteOffEvent()) noteOffEvent.setTick(tick + getDuration());
+ noteOffEvent.setTick(tick + getDuration());
super.setTick(tick);
}
/**
- * Returns the channel of the current note.
- * @return the channel of the note (1-16)
- */
- public int getChannel() {
- return noteOnMsg.getChannel();
- }
-
- /**
- * Returns the pitch of the current note.
- * @return the pitch of the note (0-127)
+ * Transposes the current note the given number of halftones.
+ * @param halftones the number of halftones to transpose - positive for up, negative for down
*/
- public int getPitch() {
- return noteOnMsg.getData1();
- }
-
- /**
- * Returns the velocity of the current 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 whether the NoteOff event was found.
- * @return the note off MidiEvent
- */
- public boolean hasNoteOffEvent() {
- return noteOffEvent != null;
+ public void transpose(int halftones) {
+ setPitch(getPitch() + halftones);
}
/**
* Adds this note (both noteOn and noteOffEvents) to a track.
* @param track the track it'll be added to.
*/
- public void addTo(Track track){
+ public void addTo(Track track) {
track.add(this);
- if (hasNoteOffEvent()) track.add(noteOffEvent);
+ 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){
+ public void removeFrom(Track track) {
track.remove(this);
- if (hasNoteOffEvent()) track.remove(noteOffEvent);
+ track.remove(noteOffEvent);
+ }
+
+ /**
+ * Returns a clone of this note.
+ */
+ public Object clone() {
+ return new MooNote(
+ new MidiEvent((ShortMessage)getMessage().clone(), getTick()),
+ new MidiEvent((ShortMessage)noteOffEvent.getMessage().clone(), noteOffEvent.getTick())
+ );
+ }
+
+ /**
+ * Compares this note to another note.
+ * @return a negative integer, zero, or a positive integer as this object is less than, equal to, or greater than the specified object
+ */
+ public int compareTo(Object o) {
+ int diff = (int)(getTick() - ((MidiEvent)o).getTick());
+ if (diff != 0) return diff;
+ return (noteOnMsg.getData1() - ((ShortMessage)((MidiEvent)o).getMessage()).getData1());
}
}
projects / moosique.git / blobdiff