Adam Barth c769d120c4 Add a Positioned constructor from a Rect
A common pattern is to use a Positioned with a Sized box to give both an offset
from the edge as well as a fixed size to the child. This patch rolls into into
the Stack layout algorithm for simplicity.

Fixes #250
2015-11-16 23:23:54 -08:00
..
2015-11-12 12:23:29 -08:00
2015-11-10 13:20:35 -08:00