Last updated at 9:55 am UTC on 13 March 2018
This class controls how the submorphs of a Morph are laid out.
The subclass TableLayout corresponds to what AlignmentMorph used to do.
The other subclass is ProportionalLayout.
There is also a How to lay out submorphs - example 4.
If you would like to write your own subclass of LayoutPolicy, you may be interested in LayoutPolicy.