/// <summary>
/// Initializes a new instance of the <see cref="Chord"/> with the specified
/// collection of notes.
/// </summary>
/// <param name="notes">Notes to combine into a chord.</param>
/// <exception cref="ArgumentNullException"><paramref name="notes"/> is null.</exception>
public Chord(IEnumerable <Note> notes)
{
ThrowIfArgument.IsNull(nameof(notes), notes);
Notes = new NotesCollection(notes);
Notes.CollectionChanged += OnNotesCollectionChanged;
}
/// <summary>
/// Initializes a new instance of the <see cref="NotesManager"/> with the specified events
/// collection and comparison delegate for events that have same time.
/// </summary>
/// <param name="eventsCollection"><see cref="EventsCollection"/> that holds note events to manage.</param>
/// <param name="sameTimeEventsComparison">Delegate to compare events with the same absolute time.</param>
/// <remarks>
/// If the <paramref name="sameTimeEventsComparison"/> is not specified events with the same time
/// will be placed into the underlying events collection in order of adding them through the manager.
/// If you want to specify custom order of such events you need to specify appropriate comparison delegate.
/// </remarks>
/// <exception cref="ArgumentNullException"><paramref name="eventsCollection"/> is null.</exception>
public NotesManager(EventsCollection eventsCollection, Comparison <MidiEvent> sameTimeEventsComparison = null)
{
ThrowIfArgument.IsNull(nameof(eventsCollection), eventsCollection);
_timedEventsManager = eventsCollection.ManageTimedEvents(sameTimeEventsComparison);
Notes = new NotesCollection(CreateNotes(_timedEventsManager.Events));
Notes.CollectionChanged += OnNotesCollectionChanged;
}
private void OnNotesCollectionChanged(NotesCollection collection, NotesCollectionChangedEventArgs args)
{
var addedNotes = args.AddedNotes;
if (addedNotes != null)
{
_timedEventsManager.Events.Add(GetNotesTimedEvents(addedNotes));
}
var removedNotes = args.RemovedNotes;
if (removedNotes != null)
{
_timedEventsManager.Events.Remove(GetNotesTimedEvents(removedNotes));
}
}
private void OnChordNotesCollectionChanged(NotesCollection collection, NotesCollectionChangedEventArgs args)
{
var addedNotes = args.AddedNotes;
if (addedNotes != null)
{
AddNotes(addedNotes);
}
var removedNotes = args.RemovedNotes;
if (removedNotes != null)
{
RemoveNotes(removedNotes);
}
}
private void OnNotesCollectionChanged(NotesCollection collection, NotesCollectionChangedEventArgs args)
{
NotesCollectionChanged?.Invoke(collection, args);
}