protected override double EaseInCore(double normalizedTime)
{
double exponent = Exponent;
return(DoubleUtils.IsZero(exponent) ?
normalizedTime : (Math.Exp(exponent * normalizedTime) - 1.0) / (Math.Exp(exponent) - 1.0));
}
protected override double EaseInCore(double normalizedTime)
{
double oscillations = Math.Max(0.0, Oscillations);
double springiness = Math.Max(0.0, Springiness);
double exponent = DoubleUtils.IsZero(springiness) ?
normalizedTime : (Math.Exp(springiness * normalizedTime) - 1.0) / (Math.Exp(springiness) - 1.0);
return(exponent * (Math.Sin((Math.PI * 2.0 * oscillations + Math.PI * 0.5) * normalizedTime)));
}
public TileBlockPanel(Size size, IPattern pattern, bool measureToActualSize)
{
_size = size;
_measureToActualSize = measureToActualSize;
var patternElement = pattern.CreateElement();
if (patternElement == null)
{
return;
}
patternElement.Measure(XamlConstants.InfiniteSize);
var imagePattern = patternElement as Image;
var bmp = imagePattern.Return(i => i.Source).As <WriteableBitmap>();
var patternSize = bmp.Return(b => new Size(b.PixelWidth, b.PixelHeight), patternElement.DesiredSize);
var w = patternSize.Width;
var h = patternSize.Height;
if (DoubleUtils.IsZero(w) || DoubleUtils.IsZero(h))
{
return;
}
var xCount = 1 + ((int)size.Width) / (int)w;
var yCount = 1 + ((int)size.Height) / (int)h;
for (var x = 0; x < xCount; x++)
{
for (var y = 0; y < yCount; y++)
{
var element = pattern.CreateElement();
element.Measure(patternSize);
Children.Add(element);
SetArrangeRect(element, new Rect(new Point(x * w, y * h), patternSize));
}
}
_actualSize = new Size(xCount * w, yCount * h);
}
public static bool IsZero(this double self, int precision)
{
return(DoubleUtils.IsZero(self, precision));
}
public static bool IsZero(this double self)
{
return(DoubleUtils.IsZero(self));
}