public void EqualsTestOutOfRange()
{
var fd1 = new FiniteDouble(double.NaN);
Assert.IsTrue(fd1.Equals(new FiniteDouble(double.PositiveInfinity)));
Assert.IsTrue(fd1 == new FiniteDouble(double.PositiveInfinity));
}
public void EqualsTestInRange()
{
var fd1 = new FiniteDouble(41.758);
Assert.IsTrue(fd1.Equals(new FiniteDouble(41.758)));
Assert.IsTrue(fd1 == new FiniteDouble(41.758));
}
public WaveformDimensions(TuneDuration coverageArea, double canvasWidth,
double leftPadding, double rightPadding, double zoomedInLeftPadding, double zoomedInRightPadding) : this()
{
var safeCanvasWidth = new FiniteDouble(canvasWidth);
var safeZoom = Math.Max(1d, new FiniteDouble(coverageArea.Zoom, 1.0));
this.LeftPadding = safeZoom > 1
? zoomedInLeftPadding
: leftPadding;
this.RightPadding = safeZoom > 1
? zoomedInRightPadding
: rightPadding;
this.RenderedWidth = Math.Max(0, (safeCanvasWidth - this.LeftPadding - this.RightPadding));
this.CompleteWidth = this.RenderedWidth * safeZoom;
this.StartsAtPx = coverageArea.HiddenBefore(this.CompleteWidth);
}
/// <summary>
/// Initialize the instance with explicit position, length, and zoom.
/// </summary>
/// <param name="position">Position within the channel in units</param>
/// <param name="length">Length of the channel in the same units</param>
/// <param name="zoom">Zoom on the channel (zoom >= 1)</param>
public TuneDuration(double position, double length, double zoom)
{
this.Length = Math.Max(0.0, new FiniteDouble(length).Value());
this.Zoom = Math.Max(1.0, new FiniteDouble(zoom, 1.0).Value());
double currentPosition = new FiniteDouble(this.Length <= 0.0 ? 0.0 : Math.Min(this.Length, position) / this.Length, 0.0d).Value();
double fullArea = 1.0d / this.Zoom;
double halfArea = fullArea / 2.0d;
double windowStart = currentPosition - halfArea; // this can mean < 0
double windowEnd = currentPosition + halfArea; // this can mean > 1
// I want to preferably see the end
if (1 - fullArea <= currentPosition)
{
windowStart = 1 - fullArea;
windowEnd = 1;
}
if (windowStart < 0.0d)
{
windowStart = 0.0d;
windowEnd = windowStart + fullArea;
}
if (windowEnd > 1.0d)
{
windowEnd = 1.0d;
windowStart = windowEnd - fullArea;
}
var windowBetween0and1 = windowStart >= 0.0d && windowEnd <= 1.0d;
var windowStartBeforeEnd = windowEnd > windowStart;
if (!windowBetween0and1 || !windowStartBeforeEnd)
{
throw new Exception($"Assertion failed: {windowStart} and {windowEnd} are suspect!");
}
this.Start = windowStart;
this.End = windowEnd;
}
