mirror of
https://github.com/liberatedsystems/Sideband_CE.git
synced 2024-09-03 04:13:27 +02:00
833 lines
25 KiB
Python
833 lines
25 KiB
Python
"""
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Components/TimePicker
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=====================
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.. seealso::
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`Material Design spec, Time picker <https://material.io/components/time-pickers>`_
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.. rubric:: Includes time 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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.. warning:: The widget is under testing. Therefore, we would be grateful if
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you would let us know about the bugs found.
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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 MDTimePicker
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KV = '''
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MDFloatLayout:
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MDRaisedButton:
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text: "Open time picker"
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pos_hint: {'center_x': .5, 'center_y': .5}
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on_release: app.show_time_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 show_time_picker(self):
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'''Open time picker dialog.'''
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time_dialog = MDTimePicker()
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time_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 MDTimePicker
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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 time picker",
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pos_hint={'center_x': .5, 'center_y': .5},
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on_release=self.show_time_picker,
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)
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)
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)
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def show_time_picker(self, *args):
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'''Open time picker dialog.'''
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MDTimePicker().open()
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Test().run()
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.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/MDTimePicker.png
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:align: center
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Binding method returning set time
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---------------------------------
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.. code-block:: python
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def show_time_picker(self):
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time_dialog = MDTimePicker()
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time_dialog.bind(time=self.get_time)
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time_dialog.open()
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def get_time(self, instance, time):
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'''
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The method returns the set time.
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:type instance: <kivymd.uix.picker.MDTimePicker object>
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:type time: <class 'datetime.time'>
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'''
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return time
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Open time dialog with the specified time
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----------------------------------------
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Use the :attr:`~MDTimePicker.set_time` method of the
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:class:`~MDTimePicker.` class.
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.. code-block:: python
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def show_time_picker(self):
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from datetime import datetime
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# Must be a datetime object
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previous_time = datetime.strptime("03:20:00", '%H:%M:%S').time()
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time_dialog = MDTimePicker()
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time_dialog.set_time(previous_time)
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time_dialog.open()
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.. note:: For customization of the :class:`~MDTimePicker` class, see the
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documentation in the :class:`~kivymd.uix.pickers.datepicker.datepicker.BaseDialogPicker` class.
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.. code-block:: python
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MDTimePicker(
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primary_color="brown",
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accent_color="red",
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text_button_color="white",
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).open()
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.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/time-picker-customization.png
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:align: center
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"""
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__all__ = ("MDTimePicker",)
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import datetime
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import os
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import re
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import time
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from typing import List, Union
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from kivy.animation import Animation
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from kivy.clock import Clock
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from kivy.event import EventDispatcher
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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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VariableListProperty,
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)
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from kivy.uix.behaviors import ButtonBehavior
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from kivy.vector import Vector
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from kivymd import uix_path
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from kivymd.uix.boxlayout import MDBoxLayout
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from kivymd.uix.circularlayout import MDCircularLayout
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from kivymd.uix.label import MDLabel
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from kivymd.uix.pickers.datepicker import BaseDialogPicker
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from kivymd.uix.relativelayout import MDRelativeLayout
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from kivymd.uix.textfield import MDTextField
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with open(
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os.path.join(uix_path, "pickers", "timepicker", "timepicker.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 AmPmSelectorLabel(ButtonBehavior, MDLabel):
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pass
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class AmPmSelector(MDBoxLayout):
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border_radius = NumericProperty()
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border_color = ColorProperty()
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bg_color = ColorProperty()
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bg_color_active = ColorProperty()
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border_width = NumericProperty()
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am = ObjectProperty()
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am = ObjectProperty()
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owner = ObjectProperty()
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text_color = ColorProperty()
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selected = StringProperty()
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_am_bg_color = ColorProperty()
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_pm_bg_color = ColorProperty()
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def __init__(self, **kwargs):
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super().__init__(**kwargs)
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self.bind(selected=self._upadte_color)
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Clock.schedule_once(self._upadte_color)
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def _upadte_color(self, *args):
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bg_color = (
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self.owner.accent_color
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if self.owner.accent_color
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else self.bg_color_active
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)
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if self.selected == "am":
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self._am_bg_color = bg_color
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self._pm_bg_color = (
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self.owner.primary_color
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if self.owner.accent_color
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else self.bg_color
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)
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elif self.selected == "pm":
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self._am_bg_color = (
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self.owner.primary_color
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if self.owner.accent_color
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else self.bg_color
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)
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self._pm_bg_color = bg_color
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class TimeInputTextField(MDTextField):
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num_type = OptionProperty("hour", options=["hour", "minute"])
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hour_regx = "^[0-9]$|^0[1-9]$|^1[0-2]$"
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minute_regx = "^[0-9]$|^0[0-9]$|^[1-5][0-9]$"
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def __init__(self, *args, **kwargs):
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super().__init__(*args, **kwargs)
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Clock.schedule_once(self.set_text)
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self.register_event_type("on_select")
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self.bind(text_color_focus=self.setter("hint_text_color_normal"))
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def validate_time(self, text) -> Union[None, re.Match]:
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reg = self.hour_regx if self.num_type == "hour" else self.minute_regx
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return re.match(reg, text)
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def insert_text(self, text, from_undo=False):
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strip_text = self.text.strip()
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current_string = "".join([strip_text, text])
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if not self.validate_time(current_string):
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text = ""
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return super().insert_text(text, from_undo=from_undo)
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def set_text(self, *args) -> None:
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"""
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Texts should be center aligned. Now we are setting the padding of text
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to somehow make them aligned.
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"""
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def set_text(*args):
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if not self.text:
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self.text = " "
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self._refresh_text(self.text)
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max_size = max(self._lines_rects, key=lambda r: r.size[0]).size
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dx = (self.width - max_size[0]) / 2.0
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dy = (self.height - max_size[1]) / 2.0
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self.padding = [dx, dy, dx, dy]
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if len(self.text) > 1:
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self.text = self.text.replace(" ", "")
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Clock.schedule_once(set_text)
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def on_focus(self, *args) -> None:
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super().on_focus(*args)
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if self.text.strip():
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if (
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not self.focus
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and int(self.text) == 0
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and self.num_type == "hour"
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):
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self.text = "12"
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else:
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self.text = " 12" if self.num_type == "hour" else " 00"
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def on_select(self, *args) -> None:
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pass
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def on_touch_down(self, touch):
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if self.collide_point(*touch.pos):
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self.dispatch("on_select")
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super().on_touch_down(touch)
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class TimeInput(MDRelativeLayout):
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"""Implements two text fields for displaying and entering a time value."""
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bg_color = ColorProperty()
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bg_color_active = ColorProperty()
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text_color = ColorProperty()
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disabled = BooleanProperty(True)
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minute_radius = ListProperty([0, 0, 0, 0])
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hour_radius = ListProperty([0, 0, 0, 0])
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state = StringProperty("hour")
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_hour = ObjectProperty()
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_minute = ObjectProperty()
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def __init__(self, **kwargs):
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super().__init__(**kwargs)
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self.register_event_type("on_time_input")
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self.register_event_type("on_hour_select")
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self.register_event_type("on_minute_select")
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def set_time(self, time_list) -> None:
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hour, minute = time_list
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self._hour.text = hour
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self._minute.text = minute
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def get_time(self) -> List[str]:
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hour = self._hour.text.strip()
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minute = self._minute.text.strip()
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return [hour, minute]
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def on_time_input(self, *args) -> None:
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pass
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def on_minute_select(self, *args) -> None:
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pass
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def on_hour_select(self, *args) -> None:
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pass
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def _update_padding(self, *args):
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self._hour.set_text()
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self._minute.set_text()
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class SelectorLabel(MDLabel):
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pass
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class CircularSelector(MDCircularLayout, EventDispatcher):
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"""Implements clock face display."""
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mode = OptionProperty("hour", options=["hour", "minute"]) # and military
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text_color = ColorProperty()
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selected_hour = StringProperty("12")
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selected_minute = StringProperty("0")
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selector_size = NumericProperty("48dp")
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selector_pos = ListProperty([0, 0])
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selector_color = ColorProperty()
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bg_color = ColorProperty()
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font_name = StringProperty()
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scale = NumericProperty(1)
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content_scale = NumericProperty(1)
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t = StringProperty("out_quad")
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d = NumericProperty(0.2)
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scale_origin = ListProperty([100, 100])
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_centers_pos = ListProperty()
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def __init__(self, **kwargs):
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super().__init__(**kwargs)
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self.bind(
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mode=self._update_labels,
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selected_hour=self.update_time,
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selected_minute=self.update_time,
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)
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Clock.schedule_once(lambda x: self._update_labels(animate=False))
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self.register_event_type("on_selector_change")
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def do_layout(self, *largs, **kwargs):
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self.update_time()
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return super().do_layout(*largs, **kwargs)
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def set_selector(self, selected) -> bool:
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"""Sets the selector's position towards the given text."""
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widget = None
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for wid in self.children:
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wid.text_color = self.text_color
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if wid.text == selected:
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widget = wid
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if not widget:
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return False
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self.selector_pos = widget.center
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widget.text_color = [1, 1, 1, 1]
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self.dispatch("on_selector_change")
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return True
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def set_time(self, selected) -> None:
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if self.mode == "hour":
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self.selected_hour = selected
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elif self.mode == "minute":
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self.selected_minute = selected
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def update_time(self, *args) -> None:
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if self.mode == "hour":
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self.set_selector(self.selected_hour)
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elif self.mode == "minute":
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self.set_selector(self.selected_minute)
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def get_selected(self) -> str:
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return self.selected
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def switch_mode(self, mode) -> None:
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if mode != self.mode:
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self.mode = mode
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def on_touch_down(self, touch):
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if self.collide_point(*touch.pos):
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touch.grab(self)
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closest_wid = self._get_closest_widget(touch.pos)
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self.set_time(closest_wid.text)
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return True
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def on_touch_move(self, touch):
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if touch.grab_current == self:
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closest_wid = self._get_closest_widget(touch.pos)
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self.set_time(closest_wid.text)
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def on_touch_up(self, touch):
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if touch.grab_current is self:
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touch.ungrab(self)
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return True
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def on_selector_change(self, *args):
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pass
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def _update_labels(self, animate=True, *args):
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"""
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This method builds the selector based on current mode which currently
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can be hour or minute.
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"""
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if self.mode == "hour":
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param = (1, 12)
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self.degree_spacing = 30
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self.start_from = 60
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elif self.mode == "minute":
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param = (0, 59, 5)
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self.degree_spacing = 6
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self.start_from = 90
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elif self.mode == "military":
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param = (1, 24)
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self.degree_spacing = 30
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self.start_from = 90
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if animate:
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anim = Animation(content_scale=0, t=self.t, d=self.d)
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anim.bind(on_complete=lambda *args: self._add_items(*param))
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anim.start(self)
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else:
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self._add_items(*param)
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def _add_items(self, start, end, step=1):
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"""
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Adds all number in range `[start, end + 1]` to the circular layout with
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the specified step. Step means that all widgets will be added to layout
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but sets the opacity for skipped widgets to `0` because we are using
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the label's text as a reference to the selected number so we have to
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add these to layout.
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"""
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self.clear_widgets()
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i = 0
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for x in range(start, end + 1):
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label = SelectorLabel(
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text=f"{x}",
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)
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if i % step != 0:
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label.opacity = 0
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self.bind(
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text_color=label.setter("text_color"),
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font_name=label.setter("font_name"),
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)
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self.add_widget(label)
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i += 1
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Clock.schedule_once(self.update_time)
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Clock.schedule_once(self._get_centers, 0.1)
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anim = Animation(content_scale=1, t=self.t, d=self.d)
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anim.start(self)
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def _get_centers(self, *args):
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"""
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Returns a list of all center. we use this for positioning the selector
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indicator.
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"""
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self._centers_pos = []
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for child in self.children:
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self._centers_pos.append(child.center)
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def _get_closest_widget(self, pos):
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"""
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Returns the nearest widget to the given position. we use this to create
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the magnetic effect.
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"""
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distance = [Vector(pos).distance(point) for point in self._centers_pos]
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if not distance:
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return False
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index = distance.index(min(distance))
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return self.children[index]
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class MDTimePicker(BaseDialogPicker):
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hour = StringProperty("12")
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"""
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Current hour.
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:attr:`hour` is an :class:`~kivy.properties.StringProperty`
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and defaults to `'12'`.
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"""
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minute = StringProperty("0")
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"""
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Current minute.
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:attr:`minute` is an :class:`~kivy.properties.StringProperty`
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and defaults to `0`.
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"""
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minute_radius = VariableListProperty(dp(5), length=4)
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"""
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Radius of the minute input field.
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.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/time-picker-minute-radius.png
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:align: center
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:attr:`minute_radius` is an :class:`~kivy.properties.ListProperty`
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and defaults to `[dp(5), dp(5), dp(5), dp(5)]`.
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"""
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hour_radius = VariableListProperty(dp(5), length=4)
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"""
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Radius of the hour input field.
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.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/time-picker-hour-radius.png
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:align: center
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:attr:`hour_radius` is an :class:`~kivy.properties.ListProperty`
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and defaults to `[dp(5), dp(5), dp(5), dp(5)]`.
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"""
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am_pm_radius = NumericProperty("5dp")
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"""
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Radius of the AM/PM selector.
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.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/time-picker-am-pm-radius.png
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:align: center
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:attr:`am_pm_radius` is an :class:`~kivy.properties.NumericProperty`
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and defaults to `dp(5)`.
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"""
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am_pm_border_width = NumericProperty("1dp")
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"""
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Width of the AM/PM selector's borders.
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.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/time-picker-am-pm-border-width.png
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:align: center
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:attr:`am_pm_border_width` is an :class:`~kivy.properties.NumericProperty`
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and defaults to `dp(1)`.
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"""
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am_pm = OptionProperty("am", options=["am", "pm"])
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"""
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Current AM/PM mode.
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:attr:`am_pm` is an :class:`~kivy.properties.OptionProperty`
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and defaults to `'am'`.
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"""
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animation_duration = NumericProperty(0.3)
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"""
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Duration of the animations.
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:attr:`animation_duration` is an :class:`~kivy.properties.NumericProperty`
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and defaults to `0.2`.
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"""
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animation_transition = StringProperty("out_quad")
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"""
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Transition type of the animations.
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:attr:`animation_transition` is an :class:`~kivy.properties.StringProperty`
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and defaults to `'out_quad'`.
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"""
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time = ObjectProperty(allownone=True)
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"""
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Returns the current time object.
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:attr:`time` is an :class:`~kivy.properties.ObjectProperty`
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and defaults to `None`.
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"""
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_state = StringProperty()
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_selector = ObjectProperty()
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_time_input = ObjectProperty()
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_am_pm_selector = ObjectProperty()
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_hour_label = ObjectProperty()
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_minute_label = ObjectProperty()
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_anim_playing = BooleanProperty(False)
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def __init__(self, **kwargs):
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super().__init__(**kwargs)
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self.bind(
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hour=self._set_current_time,
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minute=self._set_current_time,
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am_pm=self._set_current_time,
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)
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self.theme_cls.bind(device_orientation=self._check_orienation)
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if self.title == "SELECT DATE":
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self.title = "SELECT TIME"
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self.set_time(datetime.time(hour=12, minute=0)) # default time
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self._check_orienation()
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def set_time(self, time_obj) -> None:
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"""Manually set time dialog with the specified time."""
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hour = time_obj.hour
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minute = time_obj.minute
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if hour > 12:
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hour -= 12
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mode = "pm"
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else:
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mode = "am"
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hour = str(hour)
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minute = str(minute)
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self._set_time_input(hour, minute)
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self._set_dial_time(hour, minute)
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self._set_am_pm(mode)
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def get_state(self) -> str:
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"""
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Returns the current state of TimePicker.
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Can be one of `portrait`, `landscape` or `input`.
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"""
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return self._state
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def _get_dial_time(self, instance):
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mode = instance.mode
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if mode == "hour":
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self.hour = instance.selected_hour
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elif mode == "minute":
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self.minute = instance.selected_minute
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else:
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raise Exception("invalid mode for MDTimePicker: " % mode)
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self._set_time_input(self.hour, self.minute)
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def _set_dial_time(self, hour, minute):
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self._selector.selected_minute = minute
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self._selector.selected_hour = hour
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def _get_time_input(self, hour, minute):
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if hour:
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self.hour = f"{int(hour):01d}"
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if minute:
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self.minute = f"{int(minute):01d}"
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self._set_dial_time(self.hour, self.minute)
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def _set_time_input(self, hour, minute):
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hour = f"{int(hour):02d}"
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minute = f"{int(minute):02d}"
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if self._state != "input":
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self._time_input.set_time([hour, minute])
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def _get_am_pm(self, selected):
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self.am_pm = selected
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def _set_am_pm(self, selected: str) -> None:
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"""Used by set_time() to manually set the mode to "am" or "pm"."""
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self.am_pm = selected
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self._am_pm_selector.mode = self.am_pm
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self._am_pm_selector.selected = self.am_pm
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def _get_data(self):
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try:
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if time.strftime("%p"):
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result = datetime.datetime.strptime(
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f"{int(self.hour):02d}:{int(self.minute):02d} {self.am_pm}",
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"%I:%M %p",
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).time()
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else:
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result = datetime.datetime.strptime(
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f"{int(self.hour):02d}:{int(self.minute):02d}",
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"%I:%M",
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).time()
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return result
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except ValueError:
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return None # hour is zero
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def _check_orienation(self, *args, do_anim=False):
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orientation = self.theme_cls.device_orientation
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if self._state != "input" and orientation != self._state:
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self._update_pos_size(orientation, anim=do_anim)
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def _update_pos_size(self, orientation, anim=False):
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d = self.animation_duration
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# time input
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time_input_pos = (
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[dp(24), dp(368)]
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if orientation == "portrait"
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else (
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[dp(24), dp(178)]
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if orientation == "landscape"
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else [dp(24), dp(96)]
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)
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)
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if anim:
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_time_input = Animation(
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pos=time_input_pos,
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d=d,
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t=self.animation_transition, # 80 - 8,
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)
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_time_input.start(self._time_input)
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else:
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self._time_input.pos = time_input_pos
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self._time_input.disabled = False if orientation == "input" else True
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self._time_input.size = (
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[dp(216), dp(62)] if orientation == "input" else [dp(216), dp(72)]
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)
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Clock.schedule_once(self._time_input._update_padding)
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# Circular selector.
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if orientation == "input":
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if self.theme_cls.device_orientation == "portrait":
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selector_pos = [dp(34), dp(-256)]
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self._selector.scale_origin = [dp(162), dp(200)]
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else:
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selector_pos = [dp(324), dp(-19)]
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self._selector.scale_origin = [dp(292), dp(109)]
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elif orientation == "portrait":
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self._selector.pos = selector_pos = [dp(36), dp(76)]
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else:
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self._selector.pos = selector_pos = [dp(304), dp(76)]
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Animation(
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pos=selector_pos,
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scale=0 if orientation == "input" else 1,
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opacity=0 if orientation == "input" else 1,
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d=d,
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t=self.animation_transition,
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).start(self._selector)
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# AM/PM selector.
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am_pm_pos = (
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[dp(252), dp(368)]
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if orientation == "portrait"
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else (
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[dp(24), dp(126)]
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if orientation == "landscape"
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else [dp(252), dp(96)]
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)
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)
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am_pm_size = (
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[dp(52), dp(80)]
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if orientation == "portrait"
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else (
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[dp(216), dp(40)]
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if orientation == "landscape"
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else [dp(48), dp(70)]
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)
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)
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if anim:
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Animation(
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pos=am_pm_pos,
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size=am_pm_size,
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d=d,
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t=self.animation_transition,
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).start(self._am_pm_selector)
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else:
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self._am_pm_selector.pos = am_pm_pos
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self._am_pm_selector.size = am_pm_size
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self._am_pm_selector.orientation = (
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"horizontal" if orientation == "landscape" else "vertical"
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)
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# MDTimePicker.
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time_picker_size = (
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[dp(328), dp(500)]
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if orientation == "portrait"
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else (
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[dp(584), dp(368)]
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if orientation == "landscape"
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else [dp(324), dp(218)]
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)
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)
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if anim:
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Animation(
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size=time_picker_size,
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d=d,
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t=self.animation_transition,
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).start(self)
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else:
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self.size = time_picker_size
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# Minute label.
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Animation(
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pos=[dp(144), dp(76)],
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opacity=1 if orientation == "input" else 0,
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d=d,
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t=self.animation_transition,
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).start(self._minute_label)
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# Hour label.
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Animation(
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pos=[dp(24), dp(76)],
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opacity=1 if orientation == "input" else 0,
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d=d,
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t=self.animation_transition,
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).start(self._hour_label)
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self._state = orientation
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self.ids.input_clock_switch.icon = (
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"clock-time-four-outline" if orientation == "input" else "keyboard"
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)
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def _set_current_time(self, *args):
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self.time = self._get_data()
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def _switch_input(self):
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self._update_pos_size(
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self.theme_cls.device_orientation
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if self._state == "input"
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else "input",
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anim=True,
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)
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