Source code for lib_openmolar.common.qt4.widgets.null_date_edit
#! /usr/bin/env python
# -*- coding: utf-8 -*-
###############################################################################
## ##
## Copyright 2010, Neil Wallace <rowinggolfer@googlemail.com> ##
## ##
## This program 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. ##
## ##
## This program 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 this program. If not, see <http://www.gnu.org/licenses/>. ##
## ##
###############################################################################
from PyQt4 import QtGui, QtCore
[docs]class NullDateEdit(QtGui.QWidget):
'''
a simple button / date edit widget, which handles a NULL type in the db
'''
[docs] def __init__(self, q_variant, parent=None):
super(NullDateEdit, self).__init__(parent)
self.q_variant = q_variant
self.but = QtGui.QPushButton(_('n/a'), self)
self.date_edit = QtGui.QDateEdit(self)
self.date_edit.setDate(QtCore.QDate.currentDate())
self.date_edit.setCalendarPopup(True)
self.date_edit.setEnabled(False)
self.but.clicked.connect(self.enable_date)
layout = QtGui.QHBoxLayout(self)
layout.setMargin(0)
layout.addWidget(self.but)
layout.addWidget(self.date_edit)
[docs] def enable_date(self):
self.date_edit.setEnabled(not self.date_edit.isEnabled())
but_text = (_('n/a'),_('set as'))[self.date_edit.isEnabled()]
self.but.setText(but_text)
[docs] def date(self):
if self.date_edit.isEnabled():
return self.date_edit.date()
else:
return self.q_variant
if __name__ == "__main__":
import gettext
gettext.install("")
date1 = QtCore.QVariant()
date2 = QtCore.QVariant(QtCore.QDate(1969,12,9))
app = QtGui.QApplication([])
object1 = NullDateEdit(date1)
object2 = NullDateEdit(date2)
dl = QtGui.QDialog()
layout = QtGui.QVBoxLayout(dl)
layout.addWidget(object1)
layout.addWidget(object2)
dl.exec_()
