Source code for pyqtgraph.parametertree.parameterTypes.calendar
from ...Qt import QtCore, QtWidgets
from ..Parameter import Parameter
from .basetypes import WidgetParameterItem
[docs]
class CalendarParameterItem(WidgetParameterItem):
def makeWidget(self):
self.asSubItem = True
w = QtWidgets.QCalendarWidget()
w.setMaximumHeight(200)
w.sigChanged = w.selectionChanged
w.value = w.selectedDate
w.setValue = w.setSelectedDate
self.hideWidget = False
self.param.opts.setdefault('default', QtCore.QDate.currentDate())
return w
[docs]
class CalendarParameter(Parameter):
"""
Displays a Qt calendar whose date is specified by a 'format' option.
============== ========================================================
**Options:**
format Format for displaying the date and converting from a string. Can be any value accepted by
`QDate.toString` and `fromString`, or a stringified version of a QDateFormat enum, i.e. 'ISODate',
'TextDate' (default), etc.
============== ========================================================
"""
itemClass = CalendarParameterItem
def __init__(self, **opts):
opts.setdefault('format', 'TextDate')
super().__init__(**opts)
def _interpretFormat(self, fmt=None):
fmt = fmt or self.opts.get('format')
if hasattr(QtCore.Qt.DateFormat, fmt):
fmt = getattr(QtCore.Qt.DateFormat, fmt)
return fmt
def _interpretValue(self, v):
if isinstance(v, str):
fmt = self._interpretFormat()
if fmt is None:
raise ValueError('Cannot parse date string without a set format')
v = QtCore.QDate.fromString(v, fmt)
return v
def saveState(self, filter=None):
state = super().saveState(filter)
fmt = self._interpretFormat()
if state.get('value', None) is not None:
state['value'] = state['value'].toString(fmt)
return state