I am used in table layouts to hold temporary values while the layout is being computed.

Instance variables:
target <Morph> The morph contained in this cell
cellSize <Point> The size of the cell
extraSpace <nil | Point> Additional space to add after this cell
nextCell <nil | LayoutCell> The next cell in the arrangement.

Implementation note:
Both, cellSize and extraSpace contains points where
x - represents the primary table direction
y - represents the secondary table direction

	collection
	do: inject:into: size

	accessing	top
	addExtraSpace:
	cellSize
	cellSize:
	extraSpace
	extraSpace:
	hSpaceFill
	hSpaceFill:
	nextCell
	nextCell:
	target
	target:
	vSpaceFill
	vSpaceFill:

	collection	top
	do:
	inject:into: Accumulate a running value associated with evaluating the argument, binaryBlock, with the current value of the argument, thisValue, and the receiver as block arguments. For instance, to sum the numeric elements of a collection, aCollection inject: 0 into: [:subTotal :next | subTotal + next].
	size Primitive. Answer the number of indexable variables in the receiver. This value is the same as the largest legal subscript. Essential. See Object documentation whatIsAPrimitive.