mirror of
https://github.com/liberatedsystems/Sideband_CE.git
synced 2024-09-03 04:13:27 +02:00
1445 lines
49 KiB
Python
1445 lines
49 KiB
Python
"""
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Components/DatePicker
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=====================
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.. seealso::
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`Material Design spec, Date picker <https://material.io/components/date-pickers>`_
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.. rubric:: Includes date picker.
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.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/picker-previous.png
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:align: center
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.. rubric:: Usage
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.. tabs::
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.. tab:: Declarative KV style
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.. code-block:: python
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from kivy.lang import Builder
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from kivymd.app import MDApp
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from kivymd.uix.pickers import MDDatePicker
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KV = '''
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MDFloatLayout:
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MDRaisedButton:
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text: "Open date picker"
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pos_hint: {'center_x': .5, 'center_y': .5}
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on_release: app.show_date_picker()
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'''
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class Test(MDApp):
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def build(self):
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self.theme_cls.theme_style = "Dark"
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self.theme_cls.primary_palette = "Orange"
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return Builder.load_string(KV)
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def on_save(self, instance, value, date_range):
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'''
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Events called when the "OK" dialog box button is clicked.
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:type instance: <kivymd.uix.picker.MDDatePicker object>;
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:param value: selected date;
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:type value: <class 'datetime.date'>;
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:param date_range: list of 'datetime.date' objects in the selected range;
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:type date_range: <class 'list'>;
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'''
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print(instance, value, date_range)
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def on_cancel(self, instance, value):
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'''Events called when the "CANCEL" dialog box button is clicked.'''
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def show_date_picker(self):
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date_dialog = MDDatePicker()
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date_dialog.bind(on_save=self.on_save, on_cancel=self.on_cancel)
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date_dialog.open()
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Test().run()
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.. tab:: Declarative python style
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.. code-block:: python
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from kivymd.app import MDApp
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from kivymd.uix.button import MDRaisedButton
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from kivymd.uix.pickers import MDDatePicker
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from kivymd.uix.screen import MDScreen
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class Test(MDApp):
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def build(self):
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self.theme_cls.theme_style = "Dark"
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self.theme_cls.primary_palette = "Orange"
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return (
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MDScreen(
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MDRaisedButton(
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text="Open data picker",
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pos_hint={'center_x': .5, 'center_y': .5},
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on_release=self.show_date_picker,
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)
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)
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)
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def on_save(self, instance, value, date_range):
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'''
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Events called when the "OK" dialog box button is clicked.
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:type instance: <kivymd.uix.picker.MDDatePicker object>;
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:param value: selected date;
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:type value: <class 'datetime.date'>;
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:param date_range: list of 'datetime.date' objects in the selected range;
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:type date_range: <class 'list'>;
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'''
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print(instance, value, date_range)
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def on_cancel(self, instance, value):
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'''Events called when the "CANCEL" dialog box button is clicked.'''
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def show_date_picker(self, *args):
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date_dialog = MDDatePicker()
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date_dialog.bind(on_save=self.on_save, on_cancel=self.on_cancel)
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date_dialog.open()
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Test().run()
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.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/MDDatePicker.png
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:align: center
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Open date dialog with the specified date
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----------------------------------------
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.. code-block:: python
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def show_date_picker(self):
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date_dialog = MDDatePicker(year=1983, month=4, day=12)
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date_dialog.open()
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.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/specified-date.png
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:align: center
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Interval date
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-------------
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You can set the time interval from and to the set date. All days of the week
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that are not included in this range will have the status `disabled`.
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.. code-block:: python
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def show_date_picker(self):
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date_dialog = MDDatePicker(
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min_date=datetime.date.today(),
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max_date=datetime.date(
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datetime.date.today().year,
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datetime.date.today().month,
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datetime.date.today().day + 2,
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),
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)
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date_dialog.open()
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.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/range-date.png
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:align: center
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The range of available dates can be changed in the picker dialog:
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.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/change-range-date.gif
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:align: center
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Select year
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-----------
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.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/select-year-date.gif
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:align: center
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.. warning:: The list of years when opening is not automatically set
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to the current year.
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You can set the range of years using the :attr:`~kivymd.uix.picker.MDDatePicker.min_year` and
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:attr:`~kivymd.uix.picker.MDDatePicker.max_year` attributes:
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.. code-block:: python
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def show_date_picker(self):
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date_dialog = MDDatePicker(min_year=2022, max_year=2030)
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date_dialog.open()
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.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/min-max-year-date.png
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:align: center
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Set and select a date range
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---------------------------
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.. code-block:: python
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def show_date_picker(self):
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date_dialog = MDDatePicker(mode="range")
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date_dialog.open()
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.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/set-select-range-date.gif
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:align: center
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"""
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from __future__ import annotations
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__all__ = ("MDDatePicker", "BaseDialogPicker", "DatePickerInputField")
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import calendar
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import datetime
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import math
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import os
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import time
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from datetime import date
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from itertools import zip_longest
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from typing import Union
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from kivy.animation import Animation
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from kivy.lang import Builder
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from kivy.metrics import dp
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from kivy.properties import (
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BooleanProperty,
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ColorProperty,
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ListProperty,
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NumericProperty,
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ObjectProperty,
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OptionProperty,
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StringProperty,
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)
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from kivy.uix.anchorlayout import AnchorLayout
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from kivy.uix.behaviors import ButtonBehavior, FocusBehavior
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from kivy.uix.recyclegridlayout import RecycleGridLayout
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from kivy.uix.recycleview.layout import LayoutSelectionBehavior
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from kivy.uix.recycleview.views import RecycleDataViewBehavior
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from kivymd import uix_path
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from kivymd.theming import ThemableBehavior, ThemeManager
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from kivymd.toast import toast
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from kivymd.uix.behaviors import (
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CircularRippleBehavior,
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CommonElevationBehavior,
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SpecificBackgroundColorBehavior,
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)
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from kivymd.uix.boxlayout import MDBoxLayout
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from kivymd.uix.button import MDIconButton
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from kivymd.uix.dialog import BaseDialog
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from kivymd.uix.label import MDLabel
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from kivymd.uix.textfield import MDTextField
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from kivymd.uix.tooltip import MDTooltip
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with open(
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os.path.join(uix_path, "pickers", "datepicker", "datepicker.kv"),
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encoding="utf-8",
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) as kv_file:
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Builder.load_string(kv_file.read())
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class BaseDialogPicker(
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BaseDialog,
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CommonElevationBehavior,
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SpecificBackgroundColorBehavior,
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):
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"""
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Base class for :class:`~kivymd.uix.picker.MDDatePicker` and
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:class:`~kivymd.uix.picker.MDTimePicker` classes.
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For more information, see in the
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:class:`~kivymd.uix.dialog.BaseDialog` and
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:class:`~kivymd.uix.behaviors.CommonElevationBehavior` and
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:class:`~kivymd.uix.behaviors.SpecificBackgroundColorBehavior`
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classes documentation.
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:Events:
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`on_save`
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Events called when the "OK" dialog box button is clicked.
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`on_cancel`
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Events called when the "CANCEL" dialog box button is clicked.
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"""
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title_input = StringProperty("INPUT DATE")
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"""
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Dialog title fot input date.
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.. code-block:: python
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MDDatePicker(title_input="INPUT DATE")
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.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/md-date-picker-input-date.png
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:align: center
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:attr:`title_input` is an :class:`~kivy.properties.StringProperty`
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and defaults to `INPUT DATE`.
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"""
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title = StringProperty("SELECT DATE")
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"""
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Dialog title fot select date.
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.. code-block:: python
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MDDatePicker(title="SELECT DATE")
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.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/md-date-picker-select-date.png
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:align: center
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:attr:`title` is an :class:`~kivy.properties.StringProperty`
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and defaults to `SELECT DATE`.
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"""
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radius = ListProperty([7, 7, 7, 7])
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"""
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Radius list for the four corners of the dialog.
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.. code-block:: python
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MDDatePicker(radius=[7, 7, 7, 26])
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.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/md-date-picker-radius.png
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:align: center
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:attr:`radius` is an :class:`~kivy.properties.ListProperty`
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and defaults to `[7, 7, 7, 7]`.
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"""
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primary_color = ColorProperty(None)
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"""
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Background color of toolbar in (r, g, b, a) or string format.
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.. code-block:: python
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MDDatePicker(primary_color="brown")
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.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/primary-color-date.png
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:align: center
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:attr:`primary_color` is an :class:`~kivy.properties.ColorProperty`
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and defaults to `None`.
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"""
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accent_color = ColorProperty(None)
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"""
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Background color of calendar/clock face in (r, g, b, a) or string format.
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.. code-block:: python
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MDDatePicker(
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primary_color="brown",
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accent_color="darkred",
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)
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.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/accent-color-date.png
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:align: center
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:attr:`accent_color` is an :class:`~kivy.properties.ColorProperty`
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and defaults to `None`.
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"""
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selector_color = ColorProperty(None)
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"""
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Background color of the selected day of the month or hour in (r, g, b, a)
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or string format.
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.. code-block:: python
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MDDatePicker(
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primary_color="brown",
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accent_color="darkred",
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selector_color="red",
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)
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.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/selector-color-date.png
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:align: center
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:attr:`selector_color` is an :class:`~kivy.properties.ColorProperty`
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and defaults to `None`.
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"""
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text_toolbar_color = ColorProperty(None)
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"""
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Color of labels for text on a toolbar in (r, g, b, a) or string format.
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.. code-block:: python
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MDDatePicker(
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primary_color="brown",
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accent_color="darkred",
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selector_color="red",
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text_toolbar_color="lightgrey",
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)
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.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/text-toolbar-color-date.png
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:align: center
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:attr:`text_toolbar_color` is an :class:`~kivy.properties.ColorProperty`
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and defaults to `None`.
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"""
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text_color = ColorProperty(None)
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"""
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Color of text labels in calendar/clock face in (r, g, b, a) or string format.
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.. code-block:: python
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MDDatePicker(
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primary_color="brown",
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accent_color="darkred",
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selector_color="red",
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text_toolbar_color="lightgrey",
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text_color="orange",
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)
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.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/text-color-date.png
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:align: center
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:attr:`text_color` is an :class:`~kivy.properties.ColorProperty`
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and defaults to `None`.
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"""
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text_current_color = ColorProperty(None)
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"""
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Color of the text of the current day of the month/hour in (r, g, b, a)
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or string format.
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.. code-block:: python
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MDDatePicker(
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primary_color="brown",
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accent_color="darkred",
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selector_color="red",
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text_toolbar_color="lightgrey",
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text_color="orange",
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text_current_color="white",
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)
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.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/text-current-color-date.png
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:align: center
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:attr:`text_current_color` is an :class:`~kivy.properties.ColorProperty`
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and defaults to `None`.
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"""
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text_button_color = ColorProperty(None)
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"""
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Text button color in (r, g, b, a) format.
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.. code-block:: python
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MDDatePicker(
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primary_color="brown",
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accent_color="darkred",
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selector_color="red",
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text_toolbar_color="lightgrey",
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text_color="orange",
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text_current_color="white",
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text_button_color="lightgrey",
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)
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.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/text-button-color-date.png
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:align: center
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:attr:`text_button_color` is an :class:`~kivy.properties.ColorProperty`
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and defaults to `None`.
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"""
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input_field_background_color_normal = ColorProperty(None)
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"""
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Background color normal of input fields in (r, g, b, a) or string format.
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.. versionadded:: 1.1.0
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.. code-block:: python
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MDDatePicker(
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primary_color="brown",
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accent_color="darkred",
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selector_color="red",
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text_toolbar_color="lightgrey",
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text_color="orange",
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text_current_color="white",
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text_button_color="lightgrey",
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input_field_background_color_normal="coral",
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)
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.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/input-field-background-color-date.png
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:align: center
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:attr:`input_field_background_color_normal` is an :class:`~kivy.properties.ColorProperty`
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and defaults to `None`.
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"""
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input_field_background_color_focus = ColorProperty(None)
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"""
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Background color normal of input fields in (r, g, b, a) or string format.
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.. versionadded:: 1.1.0
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.. code-block:: python
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MDDatePicker(
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primary_color="brown",
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accent_color="darkred",
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selector_color="red",
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text_toolbar_color="lightgrey",
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text_color="orange",
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text_current_color="white",
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text_button_color="lightgrey",
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input_field_background_color_normal="coral",
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input_field_background_color_focus="red",
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)
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.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/input-field-background-color-focus-date.png
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:align: center
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:attr:`input_field_background_color_focus` is an :class:`~kivy.properties.ColorProperty`
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and defaults to `None`.
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"""
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input_field_background_color = ColorProperty(None)
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"""
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.. deprecated:: 1.1.0
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Use :attr:`input_field_background_color_normal` instead.
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"""
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input_field_text_color = ColorProperty(None)
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"""
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.. deprecated:: 1.1.0
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Use :attr:`input_field_text_color_normal` instead.
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"""
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input_field_text_color_normal = ColorProperty(None)
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"""
|
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Text color normal of input fields in (r, g, b, a) or string format.
|
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|
|
.. versionadded:: 1.1.0
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.. code-block:: python
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MDDatePicker(
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primary_color="brown",
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accent_color="darkred",
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selector_color="red",
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text_toolbar_color="lightgrey",
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text_color="orange",
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text_current_color="white",
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text_button_color="lightgrey",
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input_field_background_color_normal="brown",
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input_field_background_color_focus="red",
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input_field_text_color_normal="white",
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)
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|
|
.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/input-field-text-color-normal-date.png
|
|
:align: center
|
|
|
|
:attr:`input_field_text_color_normal` is an :class:`~kivy.properties.ColorProperty`
|
|
and defaults to `None`.
|
|
"""
|
|
|
|
input_field_text_color_focus = ColorProperty(None)
|
|
"""
|
|
Text color focus of input fields in (r, g, b, a) or string format.
|
|
|
|
.. versionadded:: 1.1.0
|
|
|
|
.. code-block:: python
|
|
|
|
MDDatePicker(
|
|
primary_color="brown",
|
|
accent_color="darkred",
|
|
selector_color="red",
|
|
text_toolbar_color="lightgrey",
|
|
text_color="orange",
|
|
text_current_color="white",
|
|
text_button_color="lightgrey",
|
|
input_field_background_color_normal="brown",
|
|
input_field_background_color_focus="red",
|
|
input_field_text_color_normal="white",
|
|
)
|
|
|
|
.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/input-field-text-color-normal-date.png
|
|
:align: center
|
|
|
|
:attr:`input_field_text_color_focus` is an :class:`~kivy.properties.ColorProperty`
|
|
and defaults to `None`.
|
|
"""
|
|
|
|
font_name = StringProperty("Roboto")
|
|
"""
|
|
Font name for dialog window text.
|
|
|
|
.. code-block:: python
|
|
|
|
MDDatePicker(
|
|
primary_color="brown",
|
|
accent_color="darkred",
|
|
selector_color="red",
|
|
text_toolbar_color="lightgrey",
|
|
text_color="orange",
|
|
text_current_color="white",
|
|
text_button_color="lightgrey",
|
|
input_field_background_color_normal="brown",
|
|
input_field_background_color_focus="red",
|
|
input_field_text_color_normal="white",
|
|
input_field_text_color_focus="lightgrey",
|
|
font_name="nasalization.ttf",
|
|
)
|
|
|
|
.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/font-name-date.png
|
|
:align: center
|
|
|
|
:attr:`font_name` is an :class:`~kivy.properties.StringProperty`
|
|
and defaults to `'Roboto'`.
|
|
"""
|
|
|
|
def __init__(self, **kwargs):
|
|
super().__init__(**kwargs)
|
|
self.register_event_type("on_save")
|
|
self.register_event_type("on_cancel")
|
|
|
|
def on_input_field_background_color(
|
|
self, instance, value: str | list | tuple
|
|
) -> None:
|
|
"""For supported of current API."""
|
|
|
|
self.input_field_background_color_normal = value
|
|
|
|
def on_input_field_text_color(
|
|
self, instance, value: str | list | tuple
|
|
) -> None:
|
|
"""For supported of current API."""
|
|
|
|
self.input_field_text_color_normal = value
|
|
|
|
def on_save(self, *args) -> None:
|
|
"""Events called when the "OK" dialog box button is clicked."""
|
|
|
|
self.dismiss()
|
|
|
|
def on_cancel(self, *args) -> None:
|
|
"""Events called when the "CANCEL" dialog box button is clicked."""
|
|
|
|
self.dismiss()
|
|
|
|
|
|
class DatePickerBaseTooltip(MDTooltip):
|
|
"""Implements tooltips for members of the :class:`~MDDatePicker` class."""
|
|
|
|
owner = ObjectProperty() # MDDatePicker object
|
|
hint_text = StringProperty()
|
|
|
|
|
|
class DatePickerIconTooltipButton(MDIconButton, DatePickerBaseTooltip):
|
|
pass
|
|
|
|
|
|
class DatePickerWeekdayLabel(MDLabel, DatePickerBaseTooltip):
|
|
pass
|
|
|
|
|
|
class DatePickerTypeDateError(Exception):
|
|
pass
|
|
|
|
|
|
class DatePickerInputField(MDTextField):
|
|
"""
|
|
Implements date input in dd/mm/yyyy format.
|
|
|
|
For more information, see in the
|
|
:class:`~kivymd.uix.textfield.MDTextField` class documentation.
|
|
"""
|
|
|
|
helper_text_mode = StringProperty("on_error")
|
|
owner = ObjectProperty() # MDDatePicker object
|
|
|
|
def __init__(self, *args, **kwargs):
|
|
super().__init__(*args, **kwargs)
|
|
self.bind(text=self._on_text_check_errors)
|
|
|
|
def _on_text_check_errors(self, widget, text):
|
|
if text == "":
|
|
self.error = False
|
|
return
|
|
try:
|
|
datetime.datetime.strptime(text, "%d/%m/%Y")
|
|
self.error = False
|
|
except ValueError:
|
|
self.error = True
|
|
|
|
def set_error(self):
|
|
"""Sets a text field to an error state."""
|
|
|
|
self.error = True
|
|
|
|
def input_filter(self, value: str, boolean: bool) -> Union[str, None]:
|
|
"""Filters the input according to the specified mode."""
|
|
|
|
if self.is_numeric(value):
|
|
return value
|
|
|
|
def is_numeric(self, value: str) -> bool:
|
|
"""
|
|
Returns true if the value of the `value` argument can be converted
|
|
to an integer, or if the value of the `value` argument is '/'.
|
|
"""
|
|
|
|
try:
|
|
if value == "/":
|
|
return True
|
|
int(value)
|
|
return True
|
|
except ValueError:
|
|
return False
|
|
|
|
def get_list_date(self) -> list:
|
|
"""
|
|
Returns a list as `[dd, mm, yyyy]` from a text fied for entering a date.
|
|
"""
|
|
|
|
return [d for d in self.text.split("/") if d]
|
|
|
|
|
|
class DatePickerInputFieldContainer(MDBoxLayout):
|
|
owner = ObjectProperty() # MDDatePicker object
|
|
|
|
|
|
class SelectYearList(FocusBehavior, LayoutSelectionBehavior, RecycleGridLayout):
|
|
"""A class that implements a list for choosing a year."""
|
|
|
|
|
|
class DatePickerDaySelectableItem(
|
|
ThemableBehavior, CircularRippleBehavior, ButtonBehavior, AnchorLayout
|
|
):
|
|
"""A class that implements a list for choosing a day."""
|
|
|
|
text = StringProperty()
|
|
owner = ObjectProperty()
|
|
is_today = BooleanProperty(False)
|
|
is_selected = BooleanProperty(False)
|
|
is_in_range = BooleanProperty(False)
|
|
is_range_start = BooleanProperty(False)
|
|
is_range_end = BooleanProperty(False)
|
|
is_month_end = BooleanProperty(False)
|
|
is_week_end = BooleanProperty(False)
|
|
|
|
def on_release(self):
|
|
self.owner.set_selected_widget(self)
|
|
|
|
def on_touch_down(self, touch):
|
|
# If year_layout is active don't dispatch on_touch_down events,
|
|
# so date items don't consume touch.
|
|
if not self.owner.ids._year_layout.disabled:
|
|
return
|
|
super().on_touch_down(touch)
|
|
|
|
|
|
class DatePickerYearSelectableItem(RecycleDataViewBehavior, MDLabel):
|
|
"""Implements an item for a pick list of the year."""
|
|
|
|
index = None
|
|
selected = BooleanProperty(False)
|
|
owner = ObjectProperty()
|
|
|
|
def refresh_view_attrs(self, rv, index, data):
|
|
self.index = index
|
|
return super().refresh_view_attrs(rv, index, data)
|
|
|
|
def on_touch_down(self, touch):
|
|
if super().on_touch_down(touch):
|
|
return True
|
|
if self.collide_point(*touch.pos):
|
|
self.owner.year = int(self.text)
|
|
return self.parent.select_with_touch(self.index, touch)
|
|
|
|
def apply_selection(self, table_data, index, is_selected):
|
|
self.selected = is_selected
|
|
|
|
|
|
# TODO: Add the feature to embed the `MDDatePicker` class in other layouts
|
|
# and not use it as a modal dialog.
|
|
# Add a date input mask. Currently, the date is entered in the format
|
|
# 'dd/mm/yy'. In some countries, the date is formatted as 'mm/dd/yy'.
|
|
class MDDatePicker(BaseDialogPicker):
|
|
text_weekday_color = ColorProperty(None)
|
|
"""
|
|
Text color of weekday names in (r, g, b, a) or string format.
|
|
|
|
.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/md-date-picker-text-weekday-color.png
|
|
:align: center
|
|
|
|
:attr:`text_weekday_color` is an :class:`~kivy.properties.ColorProperty`
|
|
and defaults to `None`.
|
|
"""
|
|
|
|
helper_text = StringProperty("Wrong date")
|
|
"""
|
|
Helper text when entering an invalid date.
|
|
|
|
.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/md-date-picker-helper-text.png
|
|
:align: center
|
|
|
|
:attr:`helper_text` is an :class:`~kivy.properties.StringProperty`
|
|
and defaults to `'Wrong date'`.
|
|
"""
|
|
|
|
day = NumericProperty()
|
|
"""
|
|
The day of the month to be opened by default. If not specified,
|
|
the current number will be used.
|
|
|
|
See `Open date dialog with the specified date <https://kivymd.readthedocs.io/en/latest/components/datepicker/#open-date-dialog-with-the-specified-date>`_ for more information.
|
|
|
|
:attr:`day` is an :class:`~kivy.properties.NumericProperty`
|
|
and defaults to `0`.
|
|
"""
|
|
|
|
month = NumericProperty()
|
|
"""
|
|
The number of month to be opened by default. If not specified,
|
|
the current number will be used.
|
|
|
|
See `Open date dialog with the specified date <https://kivymd.readthedocs.io/en/latest/components/datepicker/#open-date-dialog-with-the-specified-date>`_ for more information.
|
|
|
|
:attr:`month` is an :class:`~kivy.properties.NumericProperty`
|
|
and defaults to `0`.
|
|
"""
|
|
|
|
year = NumericProperty()
|
|
"""
|
|
The year of month to be opened by default. If not specified,
|
|
the current number will be used.
|
|
|
|
See `Open date dialog with the specified date <https://kivymd.readthedocs.io/en/latest/components/datepicker/#open-date-dialog-with-the-specified-date>`_ for more information.
|
|
|
|
:attr:`year` is an :class:`~kivy.properties.NumericProperty`
|
|
and defaults to `0`.
|
|
"""
|
|
|
|
min_year = NumericProperty(1914)
|
|
"""
|
|
The year of month to be opened by default. If not specified,
|
|
the current number will be used.
|
|
|
|
:attr:`min_year` is an :class:`~kivy.properties.NumericProperty`
|
|
and defaults to `1914`.
|
|
"""
|
|
|
|
max_year = NumericProperty(2121)
|
|
"""
|
|
The year of month to be opened by default. If not specified,
|
|
the current number will be used.
|
|
|
|
:attr:`max_year` is an :class:`~kivy.properties.NumericProperty`
|
|
and defaults to `2121`.
|
|
"""
|
|
|
|
mode = OptionProperty("picker", options=["picker", "range"])
|
|
"""
|
|
Dialog type:`'picker'` type allows you to select one date;
|
|
`'range'` type allows to set a range of dates from which the
|
|
user can select a date.
|
|
Available options are: [`'picker'`, `'range'`].
|
|
|
|
:attr:`mode` is an :class:`~kivy.properties.OptionProperty`
|
|
and defaults to `picker`.
|
|
"""
|
|
|
|
min_date = ObjectProperty(allownone=True)
|
|
"""
|
|
The minimum value of the date range for the `'mode`' parameter.
|
|
Must be an object <class 'datetime.date'>.
|
|
|
|
See `Open date dialog with the specified date <https://kivymd.readthedocs.io/en/latest/components/datepicker/#interval-date>`_ for more information.
|
|
|
|
:attr:`min_date` is an :class:`~kivy.properties.ObjectProperty`
|
|
and defaults to `None`.
|
|
"""
|
|
|
|
max_date = ObjectProperty(allownone=True)
|
|
"""
|
|
The minimum value of the date range for the `'mode`' parameter.
|
|
Must be an object <class 'datetime.date'>.
|
|
|
|
See `Open date dialog with the specified date <https://kivymd.readthedocs.io/en/latest/components/datepicker/#interval-date>`_ for more information.
|
|
|
|
:attr:`max_date` is an :class:`~kivy.properties.ObjectProperty`
|
|
and defaults to `None`.
|
|
"""
|
|
|
|
date_range_text_error = StringProperty("Error date range")
|
|
"""
|
|
Error text that will be shown on the screen in the form of a toast if the
|
|
minimum date range exceeds the maximum.
|
|
|
|
:attr:`date_range_text_error` is an :class:`~kivy.properties.StringProperty`
|
|
and defaults to `'Error date range'`.
|
|
"""
|
|
|
|
input_field_cls = ObjectProperty(DatePickerInputField)
|
|
"""
|
|
A class that will implement date input in the format dd/mm/yyyy.
|
|
See :class:`~DatePickerInputField` class for more information.
|
|
|
|
.. code-block:: python
|
|
|
|
class CustomInputField(MDTextField):
|
|
owner = ObjectProperty() # required attribute
|
|
|
|
# Required method.
|
|
def set_error(self):
|
|
[...]
|
|
|
|
# Required method.
|
|
def get_list_date(self):
|
|
[...]
|
|
|
|
# Required method.
|
|
def input_filter(self):
|
|
[...]
|
|
|
|
def show_date_picker(self):
|
|
date_dialog = MDDatePicker(input_field_cls=CustomInputField)
|
|
|
|
:attr:`input_field_cls` is an :class:`~kivy.properties.ObjectProperty`
|
|
and defaults to :class:`~DatePickerInputField`.
|
|
"""
|
|
|
|
sel_year = NumericProperty()
|
|
sel_month = NumericProperty()
|
|
sel_day = NumericProperty()
|
|
|
|
_calendar_layout = ObjectProperty()
|
|
_calendar_list = None
|
|
_fields_container = None
|
|
_scale_calendar_layout = NumericProperty(1)
|
|
_scale_year_layout = NumericProperty(0)
|
|
_shift_dialog_height = NumericProperty(0)
|
|
_input_date_dialog_open = BooleanProperty(False)
|
|
_select_year_dialog_open = False
|
|
_date_label_text = StringProperty()
|
|
|
|
def __init__(
|
|
self,
|
|
year=None,
|
|
month=None,
|
|
day=None,
|
|
firstweekday=0,
|
|
**kwargs,
|
|
):
|
|
self.today = date.today()
|
|
self.calendar = calendar.Calendar(firstweekday)
|
|
self.sel_year = year if year else self.today.year
|
|
self.sel_month = month if month else self.today.month
|
|
self.sel_day = day if day else self.today.day
|
|
self.month = self.sel_month
|
|
self.year = self.sel_year
|
|
self.day = self.sel_day
|
|
super().__init__(**kwargs)
|
|
self.theme_cls.bind(device_orientation=self.on_device_orientation)
|
|
|
|
if self.max_date and self.min_date:
|
|
if self.min_date and not isinstance(self.min_date, date):
|
|
raise DatePickerTypeDateError(
|
|
"'min_date' must be of class <class 'datetime.date'>"
|
|
)
|
|
if self.max_date and not isinstance(self.max_date, date):
|
|
raise DatePickerTypeDateError(
|
|
"'max_date' must be of class <class 'datetime.date'>"
|
|
)
|
|
self.compare_date_range()
|
|
|
|
self.generate_list_widgets_days()
|
|
self.update_calendar(self.sel_year, self.sel_month)
|
|
|
|
def on_device_orientation(
|
|
self, instance_theme_manager: ThemeManager, orientation_value: str
|
|
) -> None:
|
|
"""Called when the device's screen orientation changes."""
|
|
|
|
# Separators of the label text depend on the orientation.
|
|
self._update_date_label_text()
|
|
if self._input_date_dialog_open:
|
|
if orientation_value == "portrait":
|
|
self._shift_dialog_height = dp(250)
|
|
if orientation_value == "landscape":
|
|
self._shift_dialog_height = dp(138)
|
|
|
|
def on_ok_button_pressed(self) -> None:
|
|
"""
|
|
Called when the 'OK' button is pressed to confirm the date entered.
|
|
"""
|
|
|
|
if self._input_date_dialog_open and not self._try_apply_input():
|
|
return
|
|
self.dispatch(
|
|
"on_save",
|
|
date(self.sel_year, self.sel_month, self.sel_day),
|
|
self.get_date_range(),
|
|
)
|
|
|
|
def is_date_valaid(self, date: str) -> bool:
|
|
"""Checks the valid of the currently entered date."""
|
|
|
|
try:
|
|
time.strptime(date, "%d/%m/%Y")
|
|
return True
|
|
except ValueError:
|
|
return False
|
|
|
|
def transformation_from_dialog_select_year(self) -> None:
|
|
self.ids.chevron_left.disabled = False
|
|
self.ids.chevron_right.disabled = False
|
|
self.ids._year_layout.disabled = True
|
|
self.ids.triangle.disabled = False
|
|
self._select_year_dialog_open = False
|
|
self.ids.triangle.icon = "menu-down"
|
|
|
|
Animation(opacity=1, d=0.15).start(self.ids.chevron_left)
|
|
Animation(opacity=1, d=0.15).start(self.ids.chevron_right)
|
|
Animation(_scale_year_layout=0, d=0.15).start(self)
|
|
Animation(_scale_calendar_layout=1, d=0.15).start(self)
|
|
|
|
# Move selection to the same day and month of the selected year.
|
|
self.sel_year = self.year
|
|
last_day = calendar.monthrange(self.year, self.sel_month)[1]
|
|
self.sel_day = min(self.sel_day, last_day)
|
|
self.update_calendar(self.year, self.month)
|
|
|
|
def transformation_to_dialog_select_year(self) -> None:
|
|
def disabled_chevron_buttons(*args):
|
|
self.ids.chevron_left.disabled = True
|
|
self.ids.chevron_right.disabled = True
|
|
|
|
self._select_year_dialog_open = True
|
|
self.ids._year_layout.disabled = False
|
|
Animation(opacity=0, d=0.15).start(self.ids.chevron_left)
|
|
Animation(opacity=0, d=0.15).start(self.ids.chevron_right)
|
|
Animation(_scale_calendar_layout=0, d=0.15).start(self)
|
|
anim = Animation(_scale_year_layout=1, d=0.15)
|
|
anim.bind(on_complete=disabled_chevron_buttons)
|
|
anim.start(self)
|
|
self.ids.triangle.icon = "menu-up"
|
|
self.generate_list_widgets_years()
|
|
self.set_position_to_current_year()
|
|
if self.min_year <= self.year < self.max_year:
|
|
index = self.year - self.min_year
|
|
self.ids._year_layout.children[0].select_node(index)
|
|
else:
|
|
self.ids._year_layout.children[0].clear_selection()
|
|
|
|
def transformation_to_dialog_input_date(self) -> None:
|
|
self.ids.triangle.disabled = True
|
|
if self._select_year_dialog_open:
|
|
self.transformation_from_dialog_select_year()
|
|
self._input_date_dialog_open = True
|
|
self.ids.edit_icon.icon = "calendar"
|
|
self.ids.label_title.text = self.title_input
|
|
|
|
self._fields_container = DatePickerInputFieldContainer(owner=self)
|
|
if self.mode == "picker":
|
|
selected_date = date(self.sel_year, self.sel_month, self.sel_day)
|
|
selected_dates = [selected_date]
|
|
else:
|
|
selected_dates = [self.min_date, self.max_date]
|
|
for selected_date in selected_dates:
|
|
field = self.get_field(selected_date)
|
|
field.bind(text=self._on_date_field_text_changes)
|
|
self._fields_container.add_widget(field)
|
|
self.ids.container.add_widget(self._fields_container)
|
|
|
|
Animation(
|
|
_shift_dialog_height=dp(250)
|
|
if self.theme_cls.device_orientation == "portrait"
|
|
else dp(138),
|
|
_scale_calendar_layout=0,
|
|
d=0.15,
|
|
).start(self)
|
|
Animation(
|
|
opacity=0,
|
|
d=0.15 if self.theme_cls.device_orientation == "portrait" else 0,
|
|
).start(self.ids.chevron_left)
|
|
Animation(
|
|
opacity=0,
|
|
d=0.15 if self.theme_cls.device_orientation == "portrait" else 0,
|
|
).start(self.ids.chevron_right)
|
|
Animation(opacity=0, d=0.15).start(self.ids.label_month_selector)
|
|
Animation(opacity=0, d=0.15).start(self.ids.triangle)
|
|
Animation(opacity=1, d=0.15).start(self._fields_container)
|
|
# The label text separator in landscape orientation depends on the
|
|
# open dialog.
|
|
self._update_date_label_text()
|
|
|
|
def transformation_from_dialog_input_date(
|
|
self, interval: Union[int, float]
|
|
) -> None:
|
|
if not self._try_apply_input():
|
|
return
|
|
self._input_date_dialog_open = False
|
|
self.ids.triangle.disabled = False
|
|
self.ids.edit_icon.icon = "pencil"
|
|
self.ids.label_title.text = self.title
|
|
self.ids.container.remove_widget(self._fields_container)
|
|
self._fields_container = None
|
|
Animation(
|
|
_shift_dialog_height=dp(0), _scale_calendar_layout=1, d=0.15
|
|
).start(self)
|
|
Animation(
|
|
opacity=1,
|
|
d=0.15 if self.theme_cls.device_orientation == "portrait" else 0.65,
|
|
).start(self.ids.chevron_left)
|
|
Animation(
|
|
opacity=1,
|
|
d=0.15 if self.theme_cls.device_orientation == "portrait" else 0.65,
|
|
).start(self.ids.chevron_right)
|
|
Animation(opacity=1, d=0.15).start(self.ids.label_month_selector)
|
|
Animation(opacity=1, d=0.15).start(self.ids.triangle)
|
|
# The label text separator in landscape orientation depends on the
|
|
# open dialog.
|
|
self._update_date_label_text()
|
|
|
|
def _get_dates_from_fields(self):
|
|
"""
|
|
Return a list of dates entered by the user in the input fields.
|
|
|
|
If there is an error in the field or the field is empty, None will be
|
|
in its place in the list. The length of the list will be 0 if the input
|
|
dialog is closed, otherwise 1 in picker mode or 2 in range mode.
|
|
"""
|
|
|
|
if not self._fields_container:
|
|
return []
|
|
|
|
dates = []
|
|
# Widgets are arranged in the reverse order of their addition.
|
|
for field in reversed(self._fields_container.children):
|
|
try:
|
|
date = datetime.datetime.strptime(field.text, "%d/%m/%Y").date()
|
|
except ValueError:
|
|
date = None
|
|
dates.append(date)
|
|
|
|
return dates
|
|
|
|
def _try_apply_input(self) -> bool:
|
|
"""
|
|
Apply the dates entered by the user, update the calendar and return
|
|
True. If there are errors in the fields, do nothing and return False.
|
|
"""
|
|
|
|
dates = self._get_dates_from_fields()
|
|
if not dates:
|
|
return True
|
|
|
|
# Widgets are arranged in the reverse order of their addition.
|
|
fields = reversed(self._fields_container.children)
|
|
if any(d is None and f.text for f, d in zip(fields, dates)):
|
|
return False
|
|
|
|
if self.mode == "picker":
|
|
selected_date = date(self.sel_year, self.sel_month, self.sel_day)
|
|
selected_date = dates[0] or selected_date
|
|
self.sel_year = selected_date.year
|
|
self.sel_month = selected_date.month
|
|
self.sel_day = selected_date.day
|
|
self.update_calendar(self.sel_year, self.sel_month)
|
|
elif self.mode == "range":
|
|
date1, date2 = dates[0] or self.min_date, dates[1] or self.max_date
|
|
ends = list(filter(bool, [date1, date2]))
|
|
if ends:
|
|
self.min_date = min(ends)
|
|
self.max_date = max(ends)
|
|
self.update_calendar(self.year, self.month)
|
|
|
|
return True
|
|
|
|
def _on_date_field_text_changes(self, *args):
|
|
self._update_date_label_text()
|
|
|
|
def compare_date_range(self) -> None:
|
|
# TODO: Add behavior if the minimum date range exceeds the maximum
|
|
# date range. Use toast?
|
|
if self.max_date <= self.min_date:
|
|
raise DatePickerTypeDateError(
|
|
"`max_date` value cannot be less than or equal "
|
|
"to 'min_date' value"
|
|
)
|
|
|
|
def update_calendar_for_date_range(self) -> None:
|
|
# This method is no longer used, use update_calendar instead.
|
|
self.update_calendar(self.year, self.month)
|
|
|
|
def update_text_full_date(self, list_date) -> None:
|
|
"""
|
|
Updates the title of the week, month and number day name
|
|
in an open date input dialog.
|
|
"""
|
|
|
|
# This method no longer used, use update_calendar instead.
|
|
year = int(list_date[2]) if len(list_date) > 2 else self.sel_year
|
|
month = int(list_date[1]) if len(list_date) > 1 else self.sel_month
|
|
day = int(list_date[0]) if len(list_date) > 0 else self.sel_day
|
|
day = min(day, calendar.monthrange(year, month)[1])
|
|
self.sel_year, self.sel_month, self.sel_day = year, month, day
|
|
self.update_calendar(year, month)
|
|
|
|
def update_calendar(self, year, month) -> None:
|
|
self.year, self.month = year, month
|
|
if self.mode == "picker":
|
|
selected_date = date(self.sel_year, self.sel_month, self.sel_day)
|
|
selected_dates = {selected_date}
|
|
else:
|
|
selected_dates = {self.min_date, self.max_date}
|
|
# The label text depends on the selected date or date range.
|
|
self._update_date_label_text()
|
|
month_end = date(year, month, calendar.monthrange(year, month)[1])
|
|
dates = self.calendar.itermonthdates(year, month)
|
|
for widget, widget_date in zip_longest(self._calendar_list, dates):
|
|
# Only widgets whose dates are in the displayed month are visible.
|
|
visible = (
|
|
widget_date is not None
|
|
and widget_date.month == month
|
|
and widget_date.year == year
|
|
)
|
|
widget.text = str(widget_date.day) if visible else ""
|
|
widget.is_today = visible and widget_date == self.today
|
|
widget.is_selected = visible and widget_date in selected_dates
|
|
# I don't understand why, but this line is important. Without this
|
|
# line, some widgets that we are trying to disable remain enabled.
|
|
widget.disabled = False
|
|
widget.disabled = not visible
|
|
widget.is_in_range = (
|
|
visible
|
|
and self.min_date is not None
|
|
and self.max_date is not None
|
|
and self.min_date <= widget_date <= self.max_date
|
|
)
|
|
widget.is_range_start = (
|
|
visible
|
|
and self.min_date is not None
|
|
and widget_date == self.min_date
|
|
)
|
|
widget.is_range_end = (
|
|
visible
|
|
and self.max_date is not None
|
|
and widget_date == self.max_date
|
|
)
|
|
widget.is_month_end = widget_date == month_end
|
|
|
|
def get_field(self, date=None) -> MDTextField:
|
|
"""Creates and returns a text field object used to enter dates."""
|
|
|
|
if issubclass(self.input_field_cls, MDTextField):
|
|
text_color_focus = (
|
|
self.input_field_text_color_focus
|
|
if self.input_field_text_color_focus
|
|
else self.theme_cls.primary_color
|
|
)
|
|
text_color_normal = (
|
|
self.input_field_text_color_normal
|
|
if self.input_field_text_color_normal
|
|
else self.theme_cls.disabled_hint_text_color
|
|
)
|
|
fill_color_focus = (
|
|
self.input_field_background_color_focus
|
|
if self.input_field_background_color_focus
|
|
else self.theme_cls.bg_dark
|
|
)
|
|
fill_color_normal = (
|
|
self.input_field_background_color_normal
|
|
if self.input_field_background_color_normal
|
|
else self.theme_cls.bg_darkest
|
|
)
|
|
|
|
field = self.input_field_cls(
|
|
owner=self,
|
|
text=date.strftime("%d/%m/%Y") if date else "",
|
|
helper_text=self.helper_text,
|
|
fill_color_normal=fill_color_normal,
|
|
fill_color_focus=fill_color_focus,
|
|
hint_text_color_normal=text_color_normal,
|
|
hint_text_color_focus=text_color_focus,
|
|
text_color_normal=text_color_normal,
|
|
text_color_focus=text_color_focus,
|
|
line_color_focus=text_color_focus,
|
|
line_color_normal=text_color_normal,
|
|
)
|
|
return field
|
|
else:
|
|
raise TypeError(
|
|
"The `input_field_cls` parameter must be an object of the "
|
|
"`kivymd.uix.textfield.MDTextField class`"
|
|
)
|
|
|
|
def get_date_range(self) -> list:
|
|
if not self.min_date or not self.max_date:
|
|
return []
|
|
date_range = [
|
|
self.min_date + datetime.timedelta(days=x)
|
|
for x in range((self.max_date - self.min_date).days + 1)
|
|
]
|
|
return date_range
|
|
|
|
def set_text_full_date(self, year, month, day, orientation):
|
|
"""
|
|
Returns a string of type "Tue, Feb 2" or "Tue,\nFeb 2" for a date
|
|
choose and a string like "Feb 15 - Mar 23" or "Feb 15,\nMar 23" for
|
|
a date range.
|
|
"""
|
|
|
|
# In portrait orientation, the label is stretched in width, so we
|
|
# should not insert line breaks. When the input dialog is open, the
|
|
# label moves to the right and also stretches in width.
|
|
horizontal = orientation == "portrait" or self._input_date_dialog_open
|
|
|
|
def date_repr(date):
|
|
return date.strftime("%b").capitalize() + " " + str(date.day)
|
|
|
|
input_dates = self._get_dates_from_fields()
|
|
if self.mode == "picker":
|
|
selected_date = date(self.sel_year, self.sel_month, self.sel_day)
|
|
if input_dates:
|
|
selected_date = input_dates[0] or selected_date
|
|
weekday_repr = selected_date.strftime("%a").capitalize()
|
|
separator = ", " if horizontal else ",\n"
|
|
return weekday_repr + separator + date_repr(selected_date)
|
|
elif self.mode == "range":
|
|
start, end = self.min_date, self.max_date
|
|
if input_dates:
|
|
start, end = input_dates[0] or start, input_dates[1] or end
|
|
ends = [end for end in (start, end) if end]
|
|
if len(ends) == 0:
|
|
start_repr, end_repr = "Start", "End"
|
|
else:
|
|
start, end = min(ends), max(ends)
|
|
start_repr, end_repr = date_repr(start), date_repr(end)
|
|
separator = " — " if horizontal else ",\n"
|
|
return start_repr + separator + end_repr
|
|
|
|
def _update_date_label_text(self):
|
|
self._date_label_text = self.set_text_full_date(
|
|
self.sel_year,
|
|
self.sel_month,
|
|
self.sel_day,
|
|
self.theme_cls.device_orientation,
|
|
)
|
|
|
|
def set_selected_widget(self, widget) -> None:
|
|
if self._select_year_dialog_open or self._input_date_dialog_open:
|
|
return
|
|
try:
|
|
widget_date = date(self.year, self.month, int(widget.text))
|
|
except ValueError:
|
|
return
|
|
if self.mode == "picker":
|
|
self.sel_year = widget_date.year
|
|
self.sel_month = widget_date.month
|
|
self.sel_day = widget_date.day
|
|
self.update_calendar(self.sel_year, self.sel_month)
|
|
elif self.mode == "range":
|
|
ends = [end for end in (self.min_date, self.max_date) if end]
|
|
if widget_date in ends:
|
|
ends = [end for end in ends if end != widget_date]
|
|
elif len(ends) < 2:
|
|
ends.append(widget_date)
|
|
else:
|
|
start, end = min(ends), max(ends)
|
|
if abs(widget_date - start).days < abs(widget_date - end).days:
|
|
start = widget_date
|
|
else:
|
|
end = widget_date
|
|
ends = [start, end]
|
|
if len(ends) == 0:
|
|
self.min_date, self.max_date = None, None
|
|
else:
|
|
self.min_date, self.max_date = min(ends), max(ends)
|
|
self.update_calendar(self.year, self.month)
|
|
|
|
def set_month_day(self, day) -> None:
|
|
# This method is no longer used. The code bellow repeats the behavior
|
|
# that was previously required of it for backward compatibility
|
|
# reasons.
|
|
self.sel_day = day
|
|
self.update_calendar(self.sel_year, self.sel_month)
|
|
|
|
def set_position_to_current_year(self) -> None:
|
|
year_layout = self.ids._year_layout
|
|
# When this method is called for the first time, RecycleView has not
|
|
# yet added widgets to the year list, so we use the default height.
|
|
widget_height = year_layout.children[0].default_size[1]
|
|
cols_amount = year_layout.children[0].cols
|
|
rows_amount = math.ceil((self.max_year - self.min_year) / cols_amount)
|
|
row_index = (self.year - self.min_year) // cols_amount
|
|
# To find the middle of the current year widget, we add the height of
|
|
# the rows under this widget with half the widget height.
|
|
widget_center_y = (rows_amount - row_index - 1 + 0.5) * widget_height
|
|
viewport_height = year_layout.height
|
|
year_list_height = rows_amount * widget_height
|
|
# If there are too few years in the list to fill the entire viewport,
|
|
# RecycleView displays additional empty space outside the list.
|
|
# We have to move the viewport up so that this space is displayed
|
|
# under the years list. Also, this guard condition protects against
|
|
# the division by zero error below.
|
|
if viewport_height >= year_list_height:
|
|
year_layout.scroll_y = 1
|
|
return
|
|
viewport_bottom = widget_center_y - 0.5 * viewport_height
|
|
# We set scroll_y property to the ratio of the actual lifting height
|
|
# of the viewport to the maximum possible, and clamp this ratio in the
|
|
# range from 0 to 1 so that the viewport still is in a valid position
|
|
# if it is impossible to show the widget in the middle.
|
|
scroll_y = viewport_bottom / (year_list_height - viewport_height)
|
|
year_layout.scroll_y = min(1, max(0, scroll_y))
|
|
|
|
def generate_list_widgets_years(self) -> None:
|
|
self.ids._year_layout.data = []
|
|
for i, number_year in enumerate(range(self.min_year, self.max_year)):
|
|
self.ids._year_layout.data.append(
|
|
{
|
|
"owner": self,
|
|
"text": str(number_year),
|
|
"index": i,
|
|
"viewclass": "DatePickerYearSelectableItem",
|
|
}
|
|
)
|
|
|
|
def generate_list_widgets_days(self) -> None:
|
|
calendar_list = []
|
|
|
|
for day in self.calendar.iterweekdays():
|
|
weekday_label = DatePickerWeekdayLabel(
|
|
text=calendar.day_name[day][0].upper(),
|
|
owner=self,
|
|
hint_text=calendar.day_name[day],
|
|
)
|
|
weekday_label.font_name = self.font_name
|
|
self._calendar_layout.add_widget(weekday_label)
|
|
for i in range(6 * 7): # 6 weeks, 7 days a week
|
|
day_selectable_item = DatePickerDaySelectableItem(
|
|
is_week_end=i % 7 == 6,
|
|
owner=self,
|
|
)
|
|
calendar_list.append(day_selectable_item)
|
|
self._calendar_layout.add_widget(day_selectable_item)
|
|
self._calendar_list = calendar_list
|
|
|
|
def change_month(self, operation: str) -> None:
|
|
"""
|
|
Called when "chevron-left" and "chevron-right" buttons are pressed.
|
|
Switches the calendar to the previous/next month.
|
|
"""
|
|
|
|
month_delta = 1 if operation == "next" else -1
|
|
year = self.year + (self.month - 1 + month_delta) // 12
|
|
month = (self.month - 1 + month_delta) % 12 + 1
|
|
|
|
if year <= 0:
|
|
year, month = 1, 1
|
|
self.update_calendar(year, month)
|