/// <summary>
/// Initializes a new instance of the <see cref="Playback"/> with the specified
/// collection of timed objects and tempo map.
/// </summary>
/// <param name="timedObjects">Collection of timed objects to play.</param>
/// <param name="tempoMap">Tempo map used to calculate events times.</param>
/// <param name="clockSettings">Settings of the internal playback's clock.</param>
/// <exception cref="ArgumentNullException"><paramref name="timedObjects"/> is null. -or-
/// <paramref name="tempoMap"/> is null.</exception>
public Playback(IEnumerable <ITimedObject> timedObjects, TempoMap tempoMap, MidiClockSettings clockSettings = null)
{
ThrowIfArgument.IsNull(nameof(timedObjects), timedObjects);
ThrowIfArgument.IsNull(nameof(tempoMap), tempoMap);
var playbackEvents = GetPlaybackEvents(timedObjects, tempoMap);
_eventsEnumerator = playbackEvents.GetEnumerator();
_eventsEnumerator.MoveNext();
var lastPlaybackEvent = playbackEvents.LastOrDefault();
_duration = lastPlaybackEvent?.Time ?? TimeSpan.Zero;
_durationInTicks = lastPlaybackEvent?.RawTime ?? 0;
_notesMetadata = playbackEvents.Select(e => e.Metadata.Note).Where(m => m != null).ToList();
_notesMetadata.Sort((m1, m2) => m1.StartTime.CompareTo(m2.StartTime));
TempoMap = tempoMap;
clockSettings = clockSettings ?? new MidiClockSettings();
_clock = new MidiClock(false, clockSettings.CreateTickGeneratorCallback(ClockInterval));
_clock.Ticked += OnClockTicked;
Snapping = new PlaybackSnapping(playbackEvents, tempoMap);
}
private void CreateClock(TimeSpan pollingInterval)
{
_clock = new MidiClock(true, _clockSettings.CreateTickGeneratorCallback(), pollingInterval);
_clock.Ticked += OnTick;
}
