static void SetSize(
WidgetList widgets,
int width,
int height,
Point2 new_size,
bool debug = false,
Point2?spacing = null // TODO: what does null spacing mean? is it different from zero spacing?
)
{
if (spacing.HasValue)
{
new_size -= TotalSpacingOffset(width, height, spacing.Value);
}
var original_size = new Point2(
GridReader.GetRow(widgets, width, 0).CombinedWidth,
GridReader.GetColumn(widgets, width, height, 0).CombinedHeight
);
var fixed_size = GridReader.FixedContentSizeTotal(widgets, width, height);
var total_offset = TotalSpacingOffset(width, height, spacing ?? new Point2());
var fixed_with_offset = fixed_size.Inverted().WithOffset(total_offset);
var original_with_offset = original_size.WithOffset(fixed_with_offset).WithMinValue(0.0001f);
var modifier = new_size.DividedBy(original_with_offset);
widgets.ExpandAll(modifier);
}