public TimelineSource(TuneDuration duration, int alignmentOfStart)
{
this._workingDuration = TimeSpan.FromSeconds(duration.Duration() >= 0 ? duration.Duration() : DefaultDuration);
this.Beginning = this.StartingPointAlignedToSecond(
TimeSpan.FromSeconds(new FiniteDouble(duration.StartingPoint())),
alignmentOfStart);
}
public WaveformSection(TuneDuration tuneDuration, ITimedPlayback tune, int resolution)
{
this.Start = new Even((int)(new FiniteDouble( // gotta be even, baby
tuneDuration.StartingPoint() // this is number of seconds at which the area start
/ tune.TotalTime().TotalSeconds) // this is the total number of seconds - so the ratio is correct
.Value() * resolution));
this.End = this.Start + (int)Math.Min(resolution, // how much are we going to cover? max is the number of points available <=> resolution
resolution / tuneDuration.Zoom); // what is this if resolution == 8000 and zoom == 2, then we cover r/2 == 4000? seems like!
}
public void TimelineOfZoomedInDurationProvidesSecondsCorrespondingOfCoveredDuration()
{
var td = new TuneDuration(120, 360, 4);
var secs = new TimelineSource(td, 10).Seconds().ToList();
Assert.AreEqual(85, secs.Count);
Assert.AreEqual(120 - 45d, td.StartingPoint());
Assert.AreEqual(TimeSpan.FromSeconds(80), secs.First());
Assert.AreEqual(TimeSpan.FromSeconds(120 + 44d), secs.Last());
}
public void FactsAboutTheFullDuration()
{
var td = new TuneDuration(180);
Assert.AreEqual(180d, td.Duration());
Assert.AreEqual(180d, td.Remaining(0d));
Assert.AreEqual(90d, td.Remaining(90d));
Assert.IsTrue(td.Includes(0));
Assert.IsTrue(td.Includes(new ZeroToOne(0)));
Assert.IsTrue(td.Includes(1));
Assert.IsTrue(td.Includes(new ZeroToOne(1)));
Assert.AreEqual(0d, td.StartingPoint());
Assert.AreEqual(0d, td.Progress(0d).Value());
Assert.AreEqual(1d, td.Progress(180d).Value());
Assert.AreEqual(0.5d, td.Progress(90d).Value());
Assert.AreEqual(45d, td.ActualPosition(0.25d));
Assert.AreEqual(0d, td.HiddenBefore(2450));
}
public void FactsAboutZoomedInDurationThatIncludesEnd()
{
var td = new TuneDuration(120, 180, 2.0);
Assert.AreEqual(90d, td.Duration());
Assert.AreEqual(90d, td.Remaining(90d));
Assert.AreEqual(80, td.Remaining(100d));
Assert.IsFalse(td.Includes(0));
Assert.IsFalse(td.Includes(new ZeroToOne(0)));
Assert.IsTrue(td.Includes(1));
Assert.IsTrue(td.Includes(new ZeroToOne(1)));
Assert.IsTrue(td.Includes(0.5));
Assert.IsTrue(td.Includes(new ZeroToOne(0.5)));
Assert.AreEqual(90d, td.StartingPoint());
Assert.AreEqual(0d, td.Progress(0d).Value());
Assert.AreEqual(0d, td.Progress(90d).Value());
Assert.AreEqual(1d, td.Progress(180d).Value());
Assert.AreEqual(135d, td.ActualPosition(0.5d));
Assert.AreEqual(1225d, td.HiddenBefore(2450));
}
