class Bool(Variable):
"""A variable wrapper for a boolean variable.
"""
def __init__(self, default_value=False, iotype=None, desc=None,
**metadata):
# Put iotype in the metadata dictionary
if iotype is not None:
metadata['iotype'] = iotype
# Put desc in the metadata dictionary
if desc is not None:
metadata['desc'] = desc
self._validator = Enthought_Bool(value=default_value, **metadata)
super(Bool, self).__init__(default_value=default_value, **metadata)
def validate(self, obj, name, value):
""" Use the Enthought trait's validate.
"""
return self._validator.validate(obj, name, value)
def create_editor(self):
""" User the one in the Enthought trait.
"""
return self._validator.create_editor()
def get_attribute(self, name, value, trait, meta):
"""Return the attribute dictionary for this variable. This dict is
used by the GUI to populate the edit UI. Bools need to turn
their value into a string for compatibility.
name: str
Name of variable
value: object
The value of the variable
trait: CTrait
The variable's trait
meta: dict
Dictionary of metadata for this variable
"""
attr = {}
attr['name'] = name
attr['type'] = type(value).__name__
attr['value'] = str(value)
for field in meta:
if field not in gui_excludes:
attr[field] = meta[field]
return attr, None
