private bool TryToMoveToSnapPoint(SnapPoint snapPoint)
{
if (snapPoint != null)
{
MoveToTime((MetricTimeSpan)snapPoint.Time);
}
return(snapPoint != null);
}
/// <summary>
/// Adds a snap point with the specified data at given time.
/// </summary>
/// <typeparam name="TData">Type of data that will be attached to a snap point.</typeparam>
/// <param name="time">Time to add snap point at.</param>
/// <param name="data">Data to attach to snap point.</param>
/// <returns>An instance of the <see cref="SnapPoint{TData}"/> representing a snap point
/// with <paramref name="data"/> at <paramref name="time"/>.</returns>
/// <exception cref="ArgumentNullException"><paramref name="time"/> is <c>null</c>.</exception>
public SnapPoint <TData> AddSnapPoint <TData>(ITimeSpan time, TData data)
{
ThrowIfArgument.IsNull(nameof(time), time);
var metricTime = TimeConverter.ConvertTo <MetricTimeSpan>(time, _tempoMap);
var snapPoint = new SnapPoint <TData>(metricTime, data);
_snapPoints.Add(snapPoint);
return(snapPoint);
}
/// <summary>
/// Sets playback position to the time of the specified snap point.
/// </summary>
/// <param name="snapPoint">Snap point to move to.</param>
/// <exception cref="ArgumentNullException"><paramref name="snapPoint"/> is null.</exception>
/// <exception cref="ObjectDisposedException">The current <see cref="Playback"/> is disposed.</exception>
/// <exception cref="MidiDeviceException">An error occurred on device.</exception>
public void MoveToSnapPoint(SnapPoint snapPoint)
{
ThrowIfArgument.IsNull(nameof(snapPoint), snapPoint);
EnsureIsNotDisposed();
if (!snapPoint.IsEnabled)
{
return;
}
MoveToTime((MetricTimeSpan)snapPoint.Time);
}
/// <summary>
/// Sets playback position to the time of the specified snap point.
/// </summary>
/// <param name="snapPoint">Snap point to move to.</param>
/// <returns><c>true</c> if playback position successfully changed to the time of <paramref name="snapPoint"/>;
/// otherwise, <c>false</c>.</returns>
/// <exception cref="ArgumentNullException"><paramref name="snapPoint"/> is <c>null</c>.</exception>
/// <exception cref="ObjectDisposedException">The current <see cref="Playback"/> is disposed.</exception>
/// <exception cref="MidiDeviceException">An error occurred on device.</exception>
public bool MoveToSnapPoint(SnapPoint snapPoint)
{
ThrowIfArgument.IsNull(nameof(snapPoint), snapPoint);
EnsureIsNotDisposed();
if (!snapPoint.IsEnabled)
{
return(false);
}
return(TryToMoveToSnapPoint(snapPoint));
}
/// <summary>
/// Removes a snap point.
/// </summary>
/// <typeparam name="TData">Type of data attached to <paramref name="snapPoint"/>.</typeparam>
/// <param name="snapPoint">Snap point to remove.</param>
/// <exception cref="ArgumentNullException"><paramref name="snapPoint"/> is <c>null</c>.</exception>
public void RemoveSnapPoint <TData>(SnapPoint <TData> snapPoint)
{
ThrowIfArgument.IsNull(nameof(snapPoint), snapPoint);
_snapPoints.Remove(snapPoint);
}
private bool IsSnapPointWithData <TData>(SnapPoint snapPoint, TData data)
{
var snapPointWithData = snapPoint as SnapPoint <TData>;
return(snapPointWithData != null && snapPointWithData.Data.Equals(data));
}
