private Record ComputeChildSize(UIElement child, Orientation orientation, ref Size finalSize, ref double totalLength, ref double starTotal)
{
var sizeHint = GetChildSizeHint(child);
var size = new Size();
if (GridLengthHelper2.GetIsStar(sizeHint))
{
starTotal += sizeHint.Value;
}
else if (GridLengthHelper2.GetIsAuto(sizeHint))
{
ComputeChildAutoSize(child, orientation, ref finalSize, ref totalLength, ref size);
}
else if (GridLengthHelper2.GetIsAbsolute(sizeHint))
{
ComputeChildAbsoluteSize(orientation, ref finalSize, ref totalLength, ref sizeHint, ref size);
}
return(new Record
{
Child = child,
Size = size,
SizeHint = sizeHint,
});
}
private void MeasureStarChildren(Size availableSize, Orientation orientation, ref Size totalSize, double starTotal, UIElement[] children)
{
if (starTotal != 0)
{
foreach (UIElement child in children)
{
var sizeHint = GetChildSizeHint(child);
if (GridLengthHelper2.GetIsStar(sizeHint))
{
MesureChildStar(child, orientation, availableSize, sizeHint, starTotal, ref totalSize);
}
}
}
}
private void MeasureChild(UIElement child, Size availableSize, Orientation orientation, ref Size totalSize, ref double starTotal)
{
var sizeHint = GetChildSizeHint(child);
if (GridLengthHelper2.GetIsStar(sizeHint))
{
starTotal += sizeHint.Value;
}
else if (GridLengthHelper2.GetIsAuto(sizeHint))
{
MesureChildAuto(child, orientation, availableSize, ref totalSize);
}
else if (GridLengthHelper2.GetIsAbsolute(sizeHint))
{
MesureChildAbsolute(child, orientation, availableSize, sizeHint, ref totalSize);
}
}
private static Size ComputeFinalChildSize(Record record, Orientation orientation, ref Size finalSize, double starRatio)
{
var size = record.Size;
if (GridLengthHelper2.GetIsStar(record.SizeHint))
{
var portion = record.SizeHint.Value * starRatio;
if (orientation == Orientation.Vertical)
{
size.Width = finalSize.Width;
size.Height = portion;
}
else
{
size.Width = portion;
size.Height = finalSize.Height;
}
}
return(size);
}