Sideband/sbapp/kivymd/uix/screen.py
2022-10-08 17:17:59 +02:00

83 lines
2.2 KiB
Python

"""
Components/Screen
=================
:class:`~kivy.uix.screenmanager.Screen` class equivalent. Simplifies working
with some widget properties. For example:
Screen
------
.. code-block:: kv
Screen:
canvas:
Color:
rgba: app.theme_cls.primary_color
RoundedRectangle:
pos: self.pos
size: self.size
radius: [25, 0, 0, 0]
MDScreen
--------
.. code-block:: kv
MDScreen:
radius: [25, 0, 0, 0]
md_bg_color: app.theme_cls.primary_color
"""
from kivy.properties import ListProperty, ObjectProperty
from kivy.uix.screenmanager import Screen
from kivymd.uix import MDAdaptiveWidget
from kivymd.uix.behaviors import DeclarativeBehavior
from kivymd.uix.hero import MDHeroTo
class MDScreen(DeclarativeBehavior, Screen, MDAdaptiveWidget):
"""
Screen is an element intended to be used with a
:class:`~kivymd.uix.screenmanager.MDScreenManager`. For more information,
see in the :class:`~kivy.uix.screenmanager.Screen` class documentation.
"""
hero_to = ObjectProperty(deprecated=True)
"""
Must be a :class:`~kivymd.uix.hero.MDHeroTo` class.
See the documentation of the
`MDHeroTo <https://kivymd.readthedocs.io/en/latest/components/hero/>`_
widget for more detailed information.
.. deprecated:: 1.0.0
Use attr:`heroes_to` attribute instead.
:attr:`hero_to` is an :class:`~kivy.properties.ObjectProperty`
and defaults to `None`.
"""
heroes_to = ListProperty()
"""
Must be a list of :class:`~kivymd.uix.hero.MDHeroTo` class.
.. versionadded:: 1.0.0
:attr:`heroes_to` is an :class:`~kivy.properties.LiatProperty`
and defaults to `[]`.
"""
def on_hero_to(self, screen, widget: MDHeroTo) -> None:
"""Called when the value of the :attr:`hero_to` attribute changes."""
if not isinstance(widget, MDHeroTo) or not issubclass(
widget.__class__, MDHeroTo
):
raise TypeError(
f"The `{widget}` widget must be an `kivymd.uix.hero.MDHeroTo` "
f"class or inherited from this class"
)
self.heroes_to = [widget]