Source code for enable.layout.ab_constrainable
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from abc import ABCMeta
[docs]class ABConstrainable(object, metaclass=ABCMeta):
""" An abstract base class for objects that can be laid out using
layout helpers.
Minimally, instances need to have `top`, `bottom`, `left`, `right`,
`layout_width`, `layout_height`, `v_center` and `h_center` attributes
which are `LinearSymbolic` instances.
"""