Source code for camelot.view.controls.editors.dateeditor
# ============================================================================
#
# Copyright (C) 2007-2013 Conceptive Engineering bvba. All rights reserved.
# www.conceptive.be / info@conceptive.be
#
# This file is part of the Camelot Library.
#
# This file may be used under the terms of the GNU General Public
# License version 2.0 as published by the Free Software Foundation
# and appearing in the file license.txt included in the packaging of
# this file. Please review this information to ensure GNU
# General Public Licensing requirements will be met.
#
# If you are unsure which license is appropriate for your use, please
# visit www.python-camelot.com or contact info@conceptive.be
#
# This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
# WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
#
# For use of this library in commercial applications, please contact
# info@conceptive.be
#
# ============================================================================
import datetime
from PyQt4 import QtGui
from PyQt4 import QtCore
from PyQt4.QtCore import Qt
from customeditor import CustomEditor, set_background_color_palette
from camelot.view.art import Icon
from camelot.view.utils import local_date_format, date_from_string, ParsingError
from camelot.view.controls.decorated_line_edit import DecoratedLineEdit
from camelot.core.utils import ugettext as _
[docs]class DateEditor(CustomEditor):
"""Widget for editing date values"""
calendar_action_trigger = QtCore.pyqtSignal()
special_date_icon = Icon('tango/16x16/apps/office-calendar.png')
def __init__(self, parent = None,
editable = True,
nullable = True,
field_name = 'date',
**kwargs):
CustomEditor.__init__(self, parent)
self.setSizePolicy( QtGui.QSizePolicy.Preferred,
QtGui.QSizePolicy.Fixed )
self.setObjectName( field_name )
self.date_format = local_date_format()
self.line_edit = DecoratedLineEdit()
self.line_edit.set_minimum_width( unicode(QtCore.QDate(2000,12,22).toString(self.date_format)) )
self.line_edit.set_background_text( QtCore.QDate(2000,1,1).toString(self.date_format) )
# The order of creation of this widgets and their parenting
# seems very sensitive under windows and creates system crashes
# so don't change this without extensive testing on windows
special_date_menu = QtGui.QMenu(self)
calendar_widget_action = QtGui.QWidgetAction(special_date_menu)
self.calendar_widget = QtGui.QCalendarWidget(special_date_menu)
self.calendar_widget.activated.connect(self.calendar_widget_activated)
self.calendar_widget.clicked.connect(self.calendar_widget_activated)
calendar_widget_action.setDefaultWidget(self.calendar_widget)
self.calendar_action_trigger.connect( special_date_menu.hide )
special_date_menu.addAction(calendar_widget_action)
special_date_menu.addAction(_('Today'))
special_date_menu.addAction(_('Far future'))
self.special_date = QtGui.QToolButton(self)
self.special_date.setIcon( self.special_date_icon.getQIcon() )
self.special_date.setAutoRaise(True)
self.special_date.setToolTip(_('Calendar and special dates'))
self.special_date.setMenu(special_date_menu)
self.special_date.setPopupMode(QtGui.QToolButton.InstantPopup)
self.special_date.setFixedHeight(self.get_height())
self.special_date.setFocusPolicy(Qt.ClickFocus)
# end of sensitive part
if nullable:
special_date_menu.addAction(_('Clear'))
self.hlayout = QtGui.QHBoxLayout()
self.hlayout.addWidget(self.line_edit)
self.hlayout.addWidget(self.special_date)
self.hlayout.setContentsMargins(0, 0, 0, 0)
self.hlayout.setSpacing(0)
self.hlayout.setAlignment(Qt.AlignRight|Qt.AlignVCenter)
self.setContentsMargins(0, 0, 0, 0)
self.setLayout(self.hlayout)
self.minimum = datetime.date.min
self.maximum = datetime.date.max
self.setFocusProxy(self.line_edit)
self.line_edit.editingFinished.connect( self.line_edit_finished )
self.line_edit.textEdited.connect(self.text_edited)
special_date_menu.triggered.connect(self.set_special_date)
def calendar_widget_activated(self, date):
self.calendar_action_trigger.emit()
self.set_value(date)
self.editingFinished.emit()
self.line_edit.setFocus()
def line_edit_finished(self):
self.setProperty( 'value', QtCore.QVariant( self.get_value() ) )
self.valueChanged.emit()
self.editingFinished.emit()
def focusOutEvent(self, event):
# explicitely set value on focus out to format the date in case
# it was entered unformatted
value = self.get_value()
self.set_value( value )
self.editingFinished.emit()
def set_value(self, value):
value = CustomEditor.set_value(self, value)
self.setProperty( 'value', QtCore.QVariant( value ) )
if value:
qdate = QtCore.QDate(value)
formatted_date = qdate.toString(self.date_format)
self.line_edit.set_user_input(formatted_date)
self.calendar_widget.setSelectedDate(qdate)
else:
self.line_edit.set_user_input('')
self.valueChanged.emit()
def text_edited(self, text ):
try:
date_from_string( self.line_edit.user_input() )
self.line_edit.set_valid(True)
self.valueChanged.emit()
except ParsingError:
self.line_edit.set_valid(False)
def get_value(self):
try:
value = date_from_string( self.line_edit.user_input() )
except ParsingError:
value = None
return CustomEditor.get_value(self) or value
def set_field_attributes(self, editable = True,
background_color = None,
tooltip = None, **kwargs):
self.set_enabled(editable)
self.set_background_color(background_color)
self.line_edit.setToolTip(unicode(tooltip or ''))
def set_background_color(self, background_color):
set_background_color_palette( self.line_edit, background_color )
def set_enabled(self, editable=True):
self.line_edit.setEnabled(editable)
if editable:
self.special_date.show()
else:
self.special_date.hide()
def set_special_date(self, action):
if action.text().compare(_('Today')) == 0:
self.set_value(datetime.date.today())
elif action.text().compare(_('Far future')) == 0:
self.set_value(datetime.date( year = 2400, month = 12, day = 31 ))
elif action.text().compare(_('Clear')) == 0:
self.set_value(None)
self.line_edit.setFocus()
self.editingFinished.emit()