#------------------------------------------------------------------------------
# Copyright (c) 2012, Enthought, Inc.
# All rights reserved.
#------------------------------------------------------------------------------
import datetime
from dateutil import parser as isoparser
import wx
from .wx_control import WxControl
def as_wx_date(iso_date):
""" Convert an iso date string to a wxDateTime.
"""
# wx doesn't have iso date parsing until version 2.9
py_date = isoparser.parse(iso_date)
day = py_date.day
month = py_date.month - 1 # wx peculiarity!
year = py_date.year
return wx.DateTimeFromDMY(day, month, year)
def as_iso_date(wx_date):
""" Convert a QDate object into and iso date string.
"""
day = wx_date.GetDay()
month = wx_date.GetMonth() + 1 # wx peculiarity!
year = wx_date.GetYear()
return datetime.date(year, month, day).isoformat()
[docs]class WxBoundedDate(WxControl):
""" A base class for use with Wx widgets implementing behavior
for subclasses of BoundedDate.
"""
#--------------------------------------------------------------------------
# Setup Methods
#--------------------------------------------------------------------------
[docs] def create(self, tree):
""" Create and initialize the bounded date widget.
"""
super(WxBoundedDate, self).create(tree)
self.set_min_date(as_wx_date(tree['minimum']))
self.set_max_date(as_wx_date(tree['maximum']))
self.set_date(as_wx_date(tree['date']))
#--------------------------------------------------------------------------
# Message Handlers
#--------------------------------------------------------------------------
[docs] def on_action_set_date(self, content):
""" Handle the 'set_date' action from the Enaml widget.
"""
self.set_date(as_wx_date(content['date']))
[docs] def on_action_set_minimum(self, content):
""" Hanlde the 'set_minimum' action from the Enaml widget.
"""
self.set_min_date(as_wx_date(content['minimum']))
[docs] def on_action_set_maximum(self, content):
""" Handle the 'set_maximum' action from the Enaml widget.
"""
self.set_max_date(as_wx_date(content['maximum']))
#--------------------------------------------------------------------------
# Event Handlers
#--------------------------------------------------------------------------
[docs] def on_date_changed(self, event):
""" An event handler to connect to the date changed signal of
the underlying widget.
This will convert the wxDateTime to iso format and send the Enaml
widget the 'date_changed' action.
"""
wx_date = self.get_date()
content = {'date': as_iso_date(wx_date)}
self.send_action('date_changed', content)
#--------------------------------------------------------------------------
# Abstract Methods
#--------------------------------------------------------------------------
[docs] def get_date(self):
""" Return the current date in the control.
Returns
-------
result : wxDateTime
The current control date as a wxDateTime object.
"""
raise NotImplementedError
[docs] def set_date(self, date):
""" Set the widget's current date.
Parameters
----------
date : wxDateTime
The wxDateTime object to use for setting the date.
"""
raise NotImplementedError
[docs] def set_max_date(self, date):
""" Set the widget's maximum date.
Parameters
----------
date : wxDateTime
The wxDateTime object to use for setting the maximum date.
"""
raise NotImplementedError
[docs] def set_min_date(self, date):
""" Set the widget's minimum date.
Parameters
----------
date : wxDateTime
The wxDateTime object to use for setting the minimum date.
"""
raise NotImplementedError