private (int[] widths, int[] heights) WithExpandable(params Spacer[] spacers)
{
var total = Inner?.DesiredSize ?? Size.Empty;
var widthExpandable = Inner?.Width.IsUnlimited ?? false ? 1 : 0;
var heightExpandable = Inner?.Height.IsUnlimited ?? false ? 1 : 0;
foreach (var s in spacers)
{
if (s.Left.IsUnlimited)
{
++widthExpandable;
}
if (s.Right.IsUnlimited)
{
++widthExpandable;
}
if (s.Top.IsUnlimited)
{
++heightExpandable;
}
if (s.Bottom.IsUnlimited)
{
++heightExpandable;
}
total += s.GetAbsoluteSize();
}
var remaining = Layout.Size - total;
return(SizeUnit.Distribute(remaining.Width, widthExpandable),
SizeUnit.Distribute(remaining.Height, heightExpandable));
}
private (Size alignmentShift, int[] unlimitedBuffers) MeasureRemainingSpace()
{
var unlimited = 0;
var remaining = Layout.Width;
foreach (var child in GetChildren())
{
remaining -= child.DesiredSize.Width;
if (child.Width.IsUnlimited)
{
++unlimited;
}
}
if (unlimited > 0)
{
return(Size.Empty, SizeUnit.Distribute(Math.Max(0, remaining), unlimited));
}
return(Size.Empty, Array.Empty <int>());
}
public void Distribute_returns_proper_values()
{
SizeUnit.Distribute(100, 7).ShouldBe(new[] { 14, 14, 14, 15, 14, 14, 15 });
SizeUnit.Distribute(100, 999999).Sum().ShouldBe(100);
}
