class HasDatetimeTraits(HasStrictTraits):
#: Simple case - no default, no parameters, no metadata
simple_datetime = Datetime()
#: Datetime with default
epoch = Datetime(UNIX_EPOCH)
#: Datetime with default provided via keyword.
alternative_epoch = Datetime(default_value=NT_EPOCH)
#: None prohibited
none_prohibited = Datetime(allow_none=False)
#: None allowed
none_allowed = Datetime(allow_none=True)
class DateEditorDemo(HasTraits):
""" Demo class to show Datetime editors. """
datetime = Datetime()
info_string = Str('The editors for Traits Datetime objects.')
traits_view = View(
Item(
'info_string',
show_label=False,
style='readonly',
),
Group(
Item(
'datetime',
label='Simple date editor',
),
Item(
'datetime',
style='readonly',
label='ReadOnly editor',
),
label='Default settings for editors',
),
resizable=True,
)
def _datetime_changed(self):
""" Print each time the date value is changed in the editor. """
print(self.datetime)
class DatetimeEditor(EditorFactory):
""" Editor factory for the datetime editor.
"""
# -------------------------------------------------------------------------
# Trait definitions:
# -------------------------------------------------------------------------
#: The earliest datetime allowed by the editor
minimum_datetime = Datetime(datetime.datetime(100, 1, 1))
#: The latest datetime allowed by the editor
maximum_datetime = Datetime(datetime.datetime.max)
# -- ReadonlyEditor traits ------------------------------------------------
#: Message to show when datetime is None.
message = Str("Undefined")
#: The string representation of the datetime to show. Uses time.strftime
#: format.
strftime = Str("%Y-%m-%dT%H:%M:%S")
class InstanceWithDatetime(HasTraits):
""" Demo class to show Datetime editors. """
date_time = Datetime()
class TestClass(HasTraits):
t = Datetime()
x = Int()