def _redo(self):
self._score.addNote(self._np, self._head)
if self._head != DBConstants.EMPTY_NOTE:
DBMidi.playNote(self._np.drumIndex, self._head)
def _redo(self):
self._score.toggleNote(self._np, self._head)
newHead = self._score.getItemAtPosition(self._np)
if (newHead != DBConstants.EMPTY_NOTE):
DBMidi.playNote(self._np.drumIndex, self._head)
def _undo(self):
if self._oldHead == DBConstants.EMPTY_NOTE:
self._score.deleteNote(self._np)
else:
self._score.addNote(self._np, self._oldHead)
DBMidi.playNote(self._np.drumIndex, self._oldHead)