def update_maximum_datetime(self, event=None):
# sanity checking of values
if (self.minimum_datetime is not None
and self.maximum_datetime is not None
and self.minimum_datetime > self.maximum_datetime):
self.minimum_datetime = self.maximum_datetime
if self.control is not None:
if self.maximum_datetime is not None:
self.control.setMaximumDateTime(
QDateTime(self.maximum_datetime))
else:
self.control.clearMaximumDateTime()
def update_editor(self):
"""Updates the editor when the object trait changes externally to the
editor.
"""
value = self.value
if value:
if self.minimum_datetime and self.minimum_datetime > value:
value = self.minimum_datetime
elif self.maximum_datetime and self.value > self.maximum_datetime:
value = self.maximum_datetime
try:
q_datetime = QDateTime(value)
except Exception:
pass
self.control.setDateTime(q_datetime)
self.value = value
def test_datetime_editor_qt_datetime_out_of_bound(self):
# The maximum datetime supported by Qt is larger than the maximum
# datetime supported by Python
editor_factory = DatetimeEditor()
view = get_date_time_simple_view(editor_factory)
init_datetime = datetime.datetime(1900, 1, 1)
instance = InstanceWithDatetime(date_time=init_datetime)
with self.launch_editor(instance, view) as editor:
# the user set the datetime on the Qt widget to a value
# too large for Python
from pyface.qt.QtCore import QDateTime, QDate
q_datetime = QDateTime(QDate(datetime.MAXYEAR + 1, 1, 1))
editor.control.setDateTime(q_datetime)
# Get the displayed value back.
displayed_value = to_datetime(editor.control.dateTime())
self.assertEqual(instance.date_time, displayed_value)