private static long ConvertFromByTicksPerQuarterNote(MetricTime time, short ticksPerQuarterNote, TempoMap tempoMap)
{
ThrowIfArgument.IsNull(nameof(time), time);
ThrowIfArgument.IsNull(nameof(tempoMap), tempoMap);
//
var timeMicroseconds = time.TotalMicroseconds;
var accumulatedMicroseconds = 0d;
var lastTime = 0L;
var lastTempo = Tempo.Default;
foreach (var tempoChange in tempoMap.Tempo.Values)
{
var tempoChangeTime = tempoChange.Time;
var microseconds = GetMicroseconds(tempoChangeTime - lastTime, lastTempo, ticksPerQuarterNote);
if (IsGreaterOrEqual(accumulatedMicroseconds + microseconds, timeMicroseconds))
{
break;
}
accumulatedMicroseconds += microseconds;
lastTempo = tempoChange.Value;
lastTime = tempoChangeTime;
}
return(RoundMicroseconds(lastTime + (timeMicroseconds - accumulatedMicroseconds) * ticksPerQuarterNote / lastTempo.MicrosecondsPerQuarterNote));
}
public long ConvertFrom(ILength length, long time, TempoMap tempoMap)
{
ThrowIfArgument.IsNull(nameof(length), length);
ThrowIfTimeArgument.IsNegative(nameof(time), time);
ThrowIfArgument.IsNull(nameof(tempoMap), tempoMap);
var metricLength = length as MetricLength;
if (metricLength == null)
{
throw new ArgumentException($"Length is not an instance of the {nameof(MetricLength)}.", nameof(length));
}
var startTime = TimeConverter.ConvertTo <MetricTime>(time, tempoMap);
var endTime = new MetricTime(startTime.TotalMicroseconds + metricLength.TotalMicroseconds);
return(TimeConverter.ConvertFrom(endTime, tempoMap) - time);
}
/// <summary>
/// Initializes a new instance of the <see cref="MetricLength"/> with the specified
/// numbers of hours, minutes, seconds and milliseconds.
/// </summary>
/// <param name="hours">Number of hours.</param>
/// <param name="minutes">Number of minutes.</param>
/// <param name="seconds">Number of seconds.</param>
/// <param name="milliseconds">Number of milliseconds.</param>
/// <exception cref="ArgumentOutOfRangeException"><paramref name="hours"/> is negative. -or-
/// <paramref name="minutes"/> is negative. -or- <paramref name="seconds"/> is negative. -or-
/// <paramref name="milliseconds"/> is negative.</exception>
public MetricLength(int hours, int minutes, int seconds, int milliseconds)
{
_time = new MetricTime(hours, minutes, seconds, milliseconds);
}
/// <summary>
/// Initializes a new instance of the <see cref="MetricLength"/> with the specified
/// metric time using its total number of microseconds as the length.
/// </summary>
/// <param name="time">Metric time to initialize the <see cref="MetricLength"/>.</param>
/// <exception cref="ArgumentNullException"><paramref name="time"/> is null.</exception>
public MetricLength(MetricTime time)
{
ThrowIfArgument.IsNull(nameof(time), time);
_time = new MetricTime(time.TotalMicroseconds);
}
/// <summary>
/// Initializes a new instance of the <see cref="MetricLength"/> with the specified
/// number of microseconds.
/// </summary>
/// <param name="totalMicroseconds">Number of microseconds which represents metric length.</param>
/// <exception cref="ArgumentOutOfRangeException"><paramref name="totalMicroseconds"/> is negative.</exception>
public MetricLength(long totalMicroseconds)
{
_time = new MetricTime(totalMicroseconds);
}
/// <summary>
/// Determines whether the specified object is equal to the current object.
/// </summary>
/// <param name="time">The object to compare with the current object.</param>
/// <returns>true if the specified object is equal to the current object; otherwise, false.</returns>
public bool Equals(MetricTime time)
{
return(this == time);
}
