public void addChord(int step, Chord c) {
if (_type != InstrumentType.GUITAR && _type != InstrumentType.PIANO) {
throw new IllegalStateException();
}
int index = BDXUtil.searchIndexWithStep(_chordSetList, step, true);
if (index < 0) {
List<Chord> chordSet = new ArrayList<Chord>();
chordSet.add(c);
addChordSet(step, chordSet);
return;
}
StepValue<List<Chord>> sv = _chordSetList.get(index);
int st = sv.getStep();
if (st == step) {
List<Chord> chordSet = sv.getValue();
chordSet.add(c);
} else {
List<Chord> chordSet = new ArrayList<Chord>();
chordSet.add(c);
addChordSet(step, chordSet);
Collections.sort(_chordSetList, StepValue.STEP_COMPARATOR);
}
}
