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""" A simple model to use for viewing TVTK actors/widgets.
"""
# Authors: Robert Kern <robert.kern [at] gmail.com>
# Prabhu Ramachandran <prabhu [at] aero.iitb.ac.in>
# Copyright (c) 2007, Enthought, Inc.
# License: BSD Style.
# Enthought library imports.
from enthought.traits.api import Dict, Event, HasTraits, Bool
#####################################################################
# `ITVTKActorModel` class
#####################################################################
class ITVTKActorModel(HasTraits):
""" An interface for view models that can control a TVTK scene's contents.
"""
# This maintains a dictionary mapping objects (by identity) to lists (or
# single items) of TVTK Actors or 3D Widgets that represent them in the
# scene. Adding and removing objects from this dictionary adds and removes
# them from the scene. This is the trait that will be edited by a
# ActorEditor.
actor_map = Dict()
# Turn off rendering such that multiple adds/removes can be refreshed at
# once.
disable_render = Bool(False)
# Send this event in order to force a rendering of the scene.
do_render = Event()
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