internal static Size ApplySizeConstraints(this IFrameworkElement e, Size forSize)
{
var(min, max) = e.GetMinMax();
return(forSize
.AtMost(max)
.AtLeast(min)); // UWP is applying "min" after "max", so if "min" > "max", "min" wins
}
public static CGSize SizeThatFits(IFrameworkElement e, CGSize size)
{
// Note that on iOS, the computation is intentionally kept as nfloat
// to handle discrepancies with the nfloat.NaN and double.NaN.
if (e.Visibility == Visibility.Collapsed)
{
return(new CGSize(0, 0));
}
var(min, max) = e.GetMinMax();
var width = size
.Width
.NumberOrDefault(nfloat.PositiveInfinity)
.LocalMin((nfloat)max.Width)
.LocalMax((nfloat)min.Width);
var height = size
.Height
.NumberOrDefault(nfloat.PositiveInfinity)
.LocalMin((nfloat)max.Height)
.LocalMax((nfloat)min.Height);
return(new CGSize(width, height));
}
