private long GetNoteLengthInRawTime(MarkablePlaybackEvent markablePlaybackEvent)
{
if (markablePlaybackEvent != null && markablePlaybackEvent.RelatedEvents.Count > 0)
{
var noteOff = markablePlaybackEvent.RelatedEvents.Find(note =>
note?.Event?.EventType == MidiEventType.NoteOff);
var noteOn = markablePlaybackEvent.RelatedEvents.Find(note =>
note?.Event?.EventType == MidiEventType.NoteOn);
long noteRawTime = -1;
if (noteOff != null && noteOn != null)
{
noteRawTime = noteOff.RawTime < noteOn.RawTime ? noteOff.RawTime : noteOn.RawTime;
}
else if (noteOff != null)
{
noteRawTime = noteOff.RawTime;
}
else if (noteOn != null)
{
noteRawTime = noteOn.RawTime;
}
return(noteRawTime - markablePlaybackEvent.RawTime);
}
return(-1);
}
private void RenderTimeToNextNote(TimeSpan currentTime)
{
MarkablePlaybackEvent lastNoteOnScreen = null;
if (this.notesOnScreen.Values.Count > 0)
{
lastNoteOnScreen = this.notesOnScreen.Values.Aggregate((a, b) => a.MarkablePlaybackEvent.RawTime > b.MarkablePlaybackEvent.RawTime ? a : b).MarkablePlaybackEvent;
}
TimeSpan lastNoteOffScreenTime = default(TimeSpan);
if (lastNoteOnScreen != null && lastNoteOnScreen.Time.TotalMilliseconds > 0)
{
lastNoteOffScreenTime = lastNoteOnScreen.Time + noteDuration;
}
long nextNoteTime = GetNextNoteTime((long)currentTime.TotalMilliseconds);
if (nextNoteTime < 0)
{
return;
}
long timeToNextNote = nextNoteTime - (long)currentTime.TotalMilliseconds;
long timeToNextNoteAfterLastNote = timeToNextNote -
// Subtract note duration because it will show up earlier
(long)noteDuration.TotalMilliseconds +
// Subtract currentTime to get the difference
(long)currentTime.TotalMilliseconds;
// No point of showing this if the next note is less than 3 second away
if ((lastNoteOffScreenTime.TotalMilliseconds == 0 || currentTime.TotalMilliseconds - lastNoteOffScreenTime.TotalMilliseconds > msInASecond) &&
(timeToNextNoteAfterLastNote > 3 * msInASecond || previousTimeToNote >= msInASecond) &&
timeToNextNote >= msInASecond &&
(lastPlayedNoteTimeIndex < this.noteTimes.Count - 1 ||
(lastPlayedNoteTimeIndex == this.noteTimes.Count - 1 && nextNoteTime > currentTime.TotalMilliseconds)))
{
previousTimeToNote = timeToNextNote;
this.dotCounter = 0;
var seconds = timeToNextNote / msInASecond;
this.InputControl.SetTimeToNextNote(string.Format(timeToNextNoteResource, seconds));
}
else
{
this.InputControl.SetTimeToNextNote($"{playingIndicatorResource}{new string('.', (this.dotCounter / 5) + 1)}");
this.dotCounter++;
if (this.dotCounter == 15)
{
this.dotCounter = 0;
}
}
}