sw.Size MeasureChildren(sw.Size constraint)
{
var size = new sw.Size();
foreach (sw.UIElement control in Children)
{
control.Measure(constraint);
var preferredSize = control.DesiredSize;
var left = GetLeft(control) + preferredSize.Width;
var top = GetTop(control) + preferredSize.Height;
if (size.Width < left)
{
size.Width = left;
}
if (size.Height < top)
{
size.Height = top;
}
}
return(size.Min(constraint.InfinityIfNan()));
}
protected override Size MeasureOverride(Size constraint)
{
if (null == ScrollOwner || _contentRoot == null)
return base.MeasureOverride(constraint);
Size ideal = new Size (
CanHorizontallyScroll ? double.PositiveInfinity : constraint.Width,
CanVerticallyScroll ? double.PositiveInfinity : constraint.Height
);
_contentRoot.Measure (ideal);
UpdateExtents (constraint, _contentRoot.DesiredSize);
return constraint.Min (extents);
}