private static QuantizedTime FindNearestTime(IReadOnlyList <long> grid,
long time,
TimeSpanType distanceCalculationType,
double quantizingLevel,
TempoMap tempoMap)
{
var distanceToGridTime = -1L;
var convertedDistanceToGridTime = TimeSpanUtilities.GetMaxTimeSpan(distanceCalculationType);
var gridTime = -1L;
for (int i = 0; i < grid.Count; i++)
{
var currentGridTime = grid[i];
var distance = Math.Abs(time - currentGridTime);
var convertedDistance = LengthConverter.ConvertTo(distance, distanceCalculationType, Math.Min(time, currentGridTime), tempoMap);
if (convertedDistance.CompareTo(convertedDistanceToGridTime) >= 0)
{
break;
}
distanceToGridTime = distance;
convertedDistanceToGridTime = convertedDistance;
gridTime = currentGridTime;
}
//
var shift = convertedDistanceToGridTime.Multiply(quantizingLevel);
var convertedTime = TimeConverter.ConvertTo(time, distanceCalculationType, tempoMap);
var newTime = TimeConverter.ConvertFrom(
gridTime > time
? convertedTime.Add(shift, TimeSpanMode.TimeLength)
: convertedTime.Subtract(shift, TimeSpanMode.TimeLength),
tempoMap);
//
return(new QuantizedTime(newTime,
gridTime,
shift,
distanceToGridTime,
convertedDistanceToGridTime));
}
