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""" Defines the base class for controllers.
"""
# Enthought library imports
from enable.api import Component, Interactor
from traits.api import Instance
class AbstractController(Interactor):
"""
Abstract class for tools that manipulate PlotComponents. By default, a
controller attaches to a single PlotComponent.
"""
component = Instance(Component)
def __init__(self, component, *args, **kw):
self.component = component
super(AbstractController, self).__init__(*args, **kw)
return
def deactivate(self, component):
""" This method is called by the component when this controller is no
longer the active tool.
"""
pass
# EOF
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