Source code for timelinelib.calendar.generic.timepicker.datepickercontroller
# Copyright (C) 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Rickard Lindberg, Roger Lindberg
#
# This file is part of Timeline.
#
# Timeline is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Timeline is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Timeline. If not, see <http://www.gnu.org/licenses/>.
import humblewx
import wx
[docs]class DatePickerController(humblewx.Controller):
[docs] def on_init(self, date_formatter, date_modifier, on_change=None):
self._date_formatter = date_formatter
self._date_modifier = date_modifier
self._on_change = on_change
[docs] def on_text(self, event):
self._validate()
if self._on_change:
self._on_change()
[docs] def on_char(self, event):
skip = True
if event.GetKeyCode() == wx.WXK_TAB:
if event.ShiftDown():
tab_handled = self.on_shift_tab()
else:
tab_handled = self.on_tab()
skip = not tab_handled
elif event.GetKeyCode() == wx.WXK_UP:
self.on_key_up()
skip = False
elif event.GetKeyCode() == wx.WXK_DOWN:
self.on_key_down()
skip = False
event.Skip(skip)
def _validate(self):
try:
self.get_date()
except ValueError:
self.view.SetBackgroundColour("pink")
else:
self.view.SetBackgroundColour(wx.NullColour)
[docs] def on_tab(self):
return self._select_region(self._date_formatter.get_next_region)
[docs] def on_shift_tab(self):
return self._select_region(self._date_formatter.get_previous_region)
def _select_region(self, get_region_fn):
region = get_region_fn(
self.view.GetText(),
self.view.GetCursorPosition()
)
if region is None:
return False
else:
self.view.SetSelection(region)
return True
[docs] def on_key_up(self):
try:
date = self.get_date()
except ValueError:
pass
else:
self.set_date(self._get_incrementer()(date))
[docs] def on_key_down(self):
try:
date = self.get_date()
except ValueError:
pass
else:
self.set_date(self._get_decrementer()(date))
[docs] def set_date(self, date):
(formatted_date, is_bc) = self._date_formatter.format(date)
self.view.SetText(formatted_date)
self.view.SetIsBc(is_bc)
[docs] def get_date(self):
return self._date_formatter.parse((
self.view.GetText(),
self.view.GetIsBc(),
))
def _get_incrementer(self):
return {
self._date_formatter.YEAR: self._date_modifier.increment_year,
self._date_formatter.MONTH: self._date_modifier.increment_month,
self._date_formatter.DAY: self._date_modifier.increment_day,
}[self._get_region_type()]
def _get_decrementer(self):
return {
self._date_formatter.YEAR: self._date_modifier.decrement_year,
self._date_formatter.MONTH: self._date_modifier.decrement_month,
self._date_formatter.DAY: self._date_modifier.decrement_day,
}[self._get_region_type()]
def _get_region_type(self):
return self._date_formatter.get_region_type(
self.view.GetText(),
self.view.GetCursorPosition()
)