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openCom-Companion/sbapp/kivymd/uix/selectioncontrol/selectioncontrol.py
Mark Qvist 5626342cbf Increased MDSwitch hit zone
2023-08-15 12:45:41 +02:00

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"""
Components/SelectionControls
============================
.. seealso::
`Material Design spec, Checkbox <https://m3.material.io/components/checkbox/overview>`_
`Material Design spec, Switch <https://m3.material.io/components/switch/overview>`_
.. rubric:: Selection controls allow the user to select options.
`KivyMD` provides the following selection controls classes for use:
- MDCheckbox_
- MDSwitch_
.. MDCheckbox:
MDCheckbox
----------
.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/checkbox.png
:align: center
Usage
-----
.. code-block:: python
from kivy.lang import Builder
from kivymd.app import MDApp
KV = '''
MDFloatLayout:
MDCheckbox:
size_hint: None, None
size: "48dp", "48dp"
pos_hint: {'center_x': .5, 'center_y': .5}
'''
class Example(MDApp):
def build(self):
self.theme_cls.primary_palette = "Green"
self.theme_cls.theme_style = "Dark"
return Builder.load_string(KV)
Example().run()
.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/checkbox.gif
:align: center
.. Note:: Be sure to specify the size of the checkbox. By default, it is
`(dp(48), dp(48))`, but the ripple effect takes up all the available
space.
Control state
-------------
.. code-block:: kv
MDCheckbox:
on_active: app.on_checkbox_active(*args)
.. code-block:: python
def on_checkbox_active(self, checkbox, value):
if value:
print('The checkbox', checkbox, 'is active', 'and', checkbox.state, 'state')
else:
print('The checkbox', checkbox, 'is inactive', 'and', checkbox.state, 'state')
MDCheckbox with group
---------------------
.. code-block:: python
from kivy.lang import Builder
from kivymd.app import MDApp
KV = '''
<Check@MDCheckbox>:
group: 'group'
size_hint: None, None
size: dp(48), dp(48)
MDFloatLayout:
Check:
active: True
pos_hint: {'center_x': .4, 'center_y': .5}
Check:
pos_hint: {'center_x': .6, 'center_y': .5}
'''
class Example(MDApp):
def build(self):
self.theme_cls.primary_palette = "Green"
self.theme_cls.theme_style = "Dark"
return Builder.load_string(KV)
Example().run()
.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/checkbox-group.gif
:align: center
Parent and child checkboxes
---------------------------
Checkboxes can have a parent-child relationship with other checkboxes. When
the parent checkbox is checked, all child checkboxes are checked. If a parent
checkbox is unchecked, all child checkboxes are unchecked. If some, but not all,
child checkboxes are checked, the parent checkbox becomes an indeterminate
checkbox.
Usage
-----
.. code-block:: kv
MDCheckbox:
group: "root" # this is a required name for the parent checkbox group
MDCheckbox:
group: "child" # this is a required name for a group of child checkboxes
MDCheckbox:
group: "child" # this is a required name for a group of child checkboxes
Example
-------
.. code-block:: python
from kivy.lang import Builder
from kivy.properties import StringProperty
from kivymd.app import MDApp
from kivymd.uix.boxlayout import MDBoxLayout
KV = '''
<CheckItem>
adaptive_height: True
MDCheckbox:
size_hint: None, None
size: "48dp", "48dp"
group: root.group
MDLabel:
text: root.text
adaptive_height: True
theme_text_color: "Custom"
text_color: "#B2B6AE"
pos_hint: {"center_y": .5}
MDBoxLayout:
orientation: "vertical"
md_bg_color: "#141612"
MDTopAppBar:
md_bg_color: "#21271F"
specific_text_color: "#B2B6AE"
elevation: 0
title: "Meal options"
left_action_items: [["arrow-left", lambda x: x]]
anchor_title: "left"
MDBoxLayout:
orientation: "vertical"
adaptive_height: True
padding: "12dp", "36dp", 0, 0
CheckItem:
text: "Recieve emails"
group: "root"
MDBoxLayout:
orientation: "vertical"
adaptive_height: True
padding: "24dp", 0, 0, 0
CheckItem:
text: "Daily"
group: "child"
CheckItem:
text: "Weekly"
group: "child"
CheckItem:
text: "Monthly"
group: "child"
MDWidget:
'''
class CheckItem(MDBoxLayout):
text = StringProperty()
group = StringProperty()
class Example(MDApp):
def build(self):
self.theme_cls.theme_style = "Dark"
self.theme_cls.primary_palette = "Teal"
return Builder.load_string(KV)
Example().run()
.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/checkbox-parent-child.gif
:align: center
.. MDSwitch:
MDSwitch
--------
.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/switch.png
:align: center
Usage
-----
.. code-block:: python
from kivy.lang import Builder
from kivymd.app import MDApp
KV = '''
MDFloatLayout:
MDSwitch:
pos_hint: {'center_x': .5, 'center_y': .5}
'''
class Example(MDApp):
def build(self):
self.theme_cls.primary_palette = "Green"
self.theme_cls.theme_style = "Dark"
return Builder.load_string(KV)
Example().run()
.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/md-switch.gif
:align: center
.. Note:: Control state of :class:`~MDSwitch` same way as in
:class:`~MDCheckbox`.
"""
__all__ = ("MDCheckbox", "MDSwitch")
import os
from kivy.animation import Animation
from kivy.clock import Clock
from kivy.lang import Builder
from kivy.metrics import dp, sp
from kivy.properties import (
BooleanProperty,
ColorProperty,
ListProperty,
StringProperty,
)
from kivy.uix.behaviors import ToggleButtonBehavior
from kivy.uix.floatlayout import FloatLayout
from kivymd import uix_path
from kivymd.theming import ThemableBehavior
from kivymd.uix.behaviors import (
CircularRippleBehavior,
CommonElevationBehavior,
ScaleBehavior,
)
from kivymd.uix.floatlayout import MDFloatLayout
from kivymd.uix.label import MDIcon
from kivymd.utils import asynckivy
with open(
os.path.join(uix_path, "selectioncontrol", "selectioncontrol.kv"),
encoding="utf-8",
) as kv_file:
Builder.load_string(kv_file.read())
class MDCheckbox(
CircularRippleBehavior, ScaleBehavior, ToggleButtonBehavior, MDIcon
):
"""
Checkbox class.
For more information, see in the
:class:`~kivymd.uix.behaviors.CircularRippleBehavior` and
:class:`~kivy.uix.behaviors.ToggleButtonBehavior` and
:class:`~kivymd.uix.label.MDIcon`
classes documentation.
"""
__allow_child_checkboxes_active = True
__allow_root_checkbox_active = True
active = BooleanProperty(False)
"""
Indicates if the checkbox is active or inactive.
:attr:`active` is a :class:`~kivy.properties.BooleanProperty`
and defaults to `False`.
"""
checkbox_icon_normal = StringProperty("checkbox-blank-outline")
"""
Background icon of the checkbox used for the default graphical
representation when the checkbox is not pressed.
:attr:`checkbox_icon_normal` is a :class:`~kivy.properties.StringProperty`
and defaults to `'checkbox-blank-outline'`.
"""
checkbox_icon_down = StringProperty("checkbox-marked")
"""
Background icon of the checkbox used for the default graphical
representation when the checkbox is pressed.
:attr:`checkbox_icon_down` is a :class:`~kivy.properties.StringProperty`
and defaults to `'checkbox-marked'`.
"""
radio_icon_normal = StringProperty("checkbox-blank-circle-outline")
"""
Background icon (when using the `group` option) of the checkbox used for
the default graphical representation when the checkbox is not pressed.
:attr:`radio_icon_normal` is a :class:`~kivy.properties.StringProperty`
and defaults to `'checkbox-blank-circle-outline'`.
"""
radio_icon_down = StringProperty("checkbox-marked-circle")
"""
Background icon (when using the `group` option) of the checkbox used for
the default graphical representation when the checkbox is pressed.
:attr:`radio_icon_down` is a :class:`~kivy.properties.StringProperty`
and defaults to `'checkbox-marked-circle'`.
"""
color_active = ColorProperty(None)
"""
Color in (r, g, b, a) or string format when the checkbox is in the active state.
.. versionadded:: 1.0.0
.. code-block:: kv
MDCheckbox:
color_active: "red"
.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/checkbox-color-active.png
:align: center
:attr:`color_active` is a :class:`~kivy.properties.ColorProperty`
and defaults to `None`.
"""
color_inactive = ColorProperty(None)
"""
Color in (r, g, b, a) or string format when the checkbox is in the inactive state.
.. versionadded:: 1.0.0
.. code-block:: kv
MDCheckbox:
color_inactive: "blue"
.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/checkbox-color-inactive.png
:align: center
:attr:`color_inactive` is a :class:`~kivy.properties.ColorProperty`
and defaults to `None`.
"""
disabled_color = ColorProperty(None)
"""
Color in (r, g, b, a) or string format when the checkbox is in the disabled state.
.. code-block:: kv
MDCheckbox:
disabled_color: "lightgrey"
disabled: True
active: True
.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/checkbox-disabled-color.png
:align: center
:attr:`disabled_color` is a :class:`~kivy.properties.ColorProperty`
and defaults to `None`.
"""
# Deprecated property.
selected_color = ColorProperty(None, deprecated=True)
"""
Color in (r, g, b, a) or string format when the checkbox is in the active state.
.. deprecated:: 1.0.0
Use :attr:`color_active` instead.
:attr:`selected_color` is a :class:`~kivy.properties.ColorProperty`
and defaults to `None`.
"""
unselected_color = ColorProperty(None, deprecated=True)
"""
Color in (r, g, b, a) or string format when the checkbox is in the inactive state.
.. deprecated:: 1.0.0
Use :attr:`color_inactive` instead.
:attr:`unselected_color` is a :class:`~kivy.properties.ColorProperty`
and defaults to `None`.
"""
_current_color = ColorProperty([0.0, 0.0, 0.0, 0.0])
def __init__(self, **kwargs):
self.check_anim_out = Animation(
scale_value_x=0, scale_value_y=0, duration=0.1, t="out_quad"
)
self.check_anim_in = Animation(
scale_value_x=1, scale_value_y=1, duration=0.1, t="out_quad"
)
super().__init__(**kwargs)
self.color_active = self.theme_cls.primary_color
self.color_inactive = self.theme_cls.secondary_text_color
self.disabled_color = self.theme_cls.divider_color
self._current_color = self.color_inactive
self.check_anim_out.bind(
on_complete=lambda *x: self.check_anim_in.start(self)
)
self.bind(
checkbox_icon_normal=self.update_icon,
checkbox_icon_down=self.update_icon,
radio_icon_normal=self.update_icon,
radio_icon_down=self.update_icon,
group=self.update_icon,
color_active=self.update_color,
color_inactive=self.update_color,
disabled_color=self.update_color,
disabled=self.update_color,
state=self.update_color,
)
self.theme_cls.bind(
theme_style=self.update_primary_color,
primary_color=self.update_primary_color,
)
self.update_icon()
self.update_color()
def update_primary_color(self, instance, value) -> None:
"""
Called when the values of
:attr:`kivymd.theming.ThemableBehavior.theme_cls.theme_style` and
:attr:`kivymd.theming.ThemableBehavior.theme_cls.primary_color`
change.
"""
if value in ("Dark", "Light"):
if not self.disabled:
self.color = self.theme_cls.primary_color
else:
self.color = self.disabled_color
else:
self.color_active = value
def update_icon(self, *args) -> None:
"""
Called when the values of
:attr:`checkbox_icon_normal` and
:attr:`checkbox_icon_down` and
:attr:`radio_icon_normal` and
:attr:`group`
change.
"""
if self.state == "down":
self.icon = (
self.radio_icon_down
if self.group and self.group not in ["root", "child"]
else self.checkbox_icon_down
if self.group != "root"
else "minus-box"
)
else:
self.icon = (
self.radio_icon_normal
if self.group and self.group not in ["root", "child"]
else self.checkbox_icon_normal
)
def update_color(self, *args) -> None:
"""
Called when the values of
:attr:`color_active` and
:attr:`color_inactive` and
:attr:`disabled_color` and
:attr:`disabled` and
:attr:`state`
change.
"""
if self.disabled:
self._current_color = self.disabled_color
elif self.state == "down":
self._current_color = self.color_active
else:
self._current_color = self.color_inactive
def on_state(self, *args) -> None:
"""Called when the values of :attr:`state` change."""
if self.state == "down":
self.check_anim_in.cancel(self)
self.check_anim_out.start(self)
self.update_icon()
if self.group:
self._release_group(self)
self.active = True
else:
self.check_anim_in.cancel(self)
if not self.group:
self.check_anim_out.start(self)
self.update_icon()
self.active = False
def on_active(self, *args) -> None:
"""Called when the values of :attr:`active` change."""
self.state = "down" if self.active else "normal"
if (
self.group
and self.group == "root"
and MDCheckbox.__allow_root_checkbox_active
):
self.set_child_active(self.active)
elif self.group and self.group == "child":
if MDCheckbox.__allow_child_checkboxes_active:
self.set_root_active()
def set_root_active(self) -> None:
root_checkbox = self.get_widgets("root")
if root_checkbox:
MDCheckbox.__allow_root_checkbox_active = False
root_checkbox[0].active = True in [
child.active for child in self.get_widgets("child")
]
MDCheckbox.__allow_root_checkbox_active = True
def set_child_active(self, active: bool):
for child in self.get_widgets("child"):
child.active = active
MDCheckbox.__allow_child_checkboxes_active = True
def on_touch_down(self, touch):
if self.collide_point(touch.x, touch.y):
if self.group and self.group == "root":
MDCheckbox.__allow_child_checkboxes_active = False
return super().on_touch_down(touch)
def _release_group(self, current):
if self.group and self.group in ["root", "child"]:
return
super()._release_group(current)
class ThumbIcon(MDIcon):
"""
Implements icon for the :class:`~Thumb` widget.
.. versionadded:: 1.0.0
"""
class Thumb(CommonElevationBehavior, CircularRippleBehavior, MDFloatLayout):
"""Implements a thumb for the :class:`~MDSwitch` widget."""
def _set_ellipse(self, instance, value):
self.ellipse.size = (self._ripple_rad, self._ripple_rad)
if self.ellipse.size[0] > self.width * 1.5 and not self._fading_out:
self.fade_out()
self.ellipse.pos = (
self.center_x - self._ripple_rad / 2.0,
self.center_y - self._ripple_rad / 2.0,
)
self.stencil.pos = (
self.center_x - (self.width * self.ripple_scale) / 2,
self.center_y - (self.height * self.ripple_scale) / 2,
)
class MDSwitch(ThemableBehavior, FloatLayout):
"""
Switch class.
For more information, see in the
:class:`~kivymd.theming.ThemableBehavior` and
:class:`~kivy.uix.floatlayout.FloatLayout` classes documentation.
"""
active = BooleanProperty(False)
"""
Indicates if the switch is active or inactive.
:attr:`active` is a :class:`~kivy.properties.BooleanProperty`
and defaults to `False`.
"""
icon_active = StringProperty()
"""
Thumb icon when the switch is in the active state (only M3 style).
.. versionadded:: 1.0.0
.. code-block:: kv
MDSwitch:
active: True
icon_active: "check"
.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/switch-icon-active.png
:align: center
:attr:`icon_active` is a :class:`~kivy.properties.StringProperty`
and defaults to `''`.
"""
icon_inactive = StringProperty()
"""
Thumb icon when the switch is in an inactive state (only M3 style).
.. versionadded:: 1.0.0
.. code-block:: kv
MDSwitch:
icon_inactive: "close"
.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/switch-icon-inactive.png
:align: center
:attr:`icon_inactive` is a :class:`~kivy.properties.StringProperty`
and defaults to `''`.
"""
icon_active_color = ColorProperty(None)
"""
Thumb icon color in (r, g, b, a) or string format when the switch is in the
active state (only M3 style).
.. versionadded:: 1.0.0
.. code-block:: kv
MDSwitch:
active: True
icon_active: "check"
icon_active_color: "white"
.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/switch-icon-active-color.png
:align: center
:attr:`icon_active_color` is a :class:`~kivy.properties.ColorProperty`
and defaults to `None`.
"""
icon_inactive_color = ColorProperty(None)
"""
Thumb icon color in (r, g, b, a) or string format when the switch is in an
inactive state (only M3 style).
.. versionadded:: 1.0.0
.. code-block:: kv
MDSwitch:
icon_inactive: "close"
icon_inactive_color: "grey"
.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/switch-icon-inactive-color.png
:align: center
:attr:`icon_inactive_color` is a :class:`~kivy.properties.ColorProperty`
and defaults to `None`.
"""
thumb_color_active = ColorProperty(None)
"""
The color in (r, g, b, a) or string format of the thumb when the switch is active.
.. versionadded:: 1.0.0
.. code-block:: kv
MDSwitch:
active: True
thumb_color_active: "brown"
.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/switch-thumb-color-active.png
:align: center
:attr:`thumb_color_active` is an :class:`~kivy.properties.ColorProperty`
and default to `None`.
"""
thumb_color_inactive = ColorProperty(None)
"""
The color in (r, g, b, a) or string format of the thumb when the switch is inactive.
.. versionadded:: 1.0.0
.. code-block:: kv
MDSwitch:
thumb_color_inactive: "brown"
.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/switch-thumb-color-inactive.png
:align: center
:attr:`thumb_color_inactive` is an :class:`~kivy.properties.ColorProperty`
and default to `None`.
"""
thumb_color_disabled = ColorProperty(None)
"""
The color in (r, g, b, a) or string format of the thumb when the switch is
in the disabled state.
.. code-block:: kv
MDSwitch:
active: True
thumb_color_disabled: "brown"
disabled: True
.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/switch-thumb-color-disabled.png
:align: center
:attr:`thumb_color_disabled` is an :class:`~kivy.properties.ColorProperty`
and default to `None`.
"""
track_color_active = ColorProperty(None)
"""
The color in (r, g, b, a) or string format of the track when the switch is active.
.. code-block:: kv
MDSwitch:
active: True
track_color_active: "red"
.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/switch-track-color-active.png
:align: center
:attr:`track_color_active` is an :class:`~kivy.properties.ColorProperty`
and default to `None`.
"""
track_color_inactive = ColorProperty(None)
"""
The color in (r, g, b, a) or string format of the track when the switch is inactive.
.. versionadded:: 1.0.0
.. code-block:: kv
MDSwitch:
track_color_inactive: "red"
.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/switch-track-color-inactive.png
:align: center
:attr:`track_color_inactive` is an :class:`~kivy.properties.ColorProperty`
and default to `None`.
"""
track_color_disabled = ColorProperty(None)
"""
The color in (r, g, b, a) or string format of the track when the switch is
in the disabled state.
.. code-block:: kv
MDSwitch:
track_color_disabled: "lightgrey"
disabled: True
.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/switch-track-color-disabled.png
:align: center
:attr:`track_color_disabled` is an :class:`~kivy.properties.ColorProperty`
and default to `None`.
"""
_thumb_pos = ListProperty([0, 0])
def __init__(self, **kwargs):
super().__init__(**kwargs)
self.bind(icon_active=self.set_icon, icon_inactive=self.set_icon)
self.size_hint = (None, None)
self.size = (dp(36), dp(48))
Clock.schedule_once(self._check_style)
Clock.schedule_once(lambda x: self._update_thumb_pos(animation=False))
Clock.schedule_once(lambda x: self.on_active(self, self.active))
# Hack to increase switch hit zone
def tnn(self, pa):
try:
ex = pa.pos[0]
ey = pa.pos[1]
xs = self.center[0]-self.width/2 - (self.width)
xe = self.center[0]+self.width/2 + (self.width)
ys = self.center[1]-self.height/2
ye = self.center[1]+self.height/2
# print(str(xs)+" < "+str(ex)+" < "+str(xe)+" "+str(ys)+" < "+str(ey)+" < "+str(ye))
if xs < ex < xe and ys < ey < ye:
self.active = not self.active
except Exception as e:
pass
def set_icon(self, instance_switch, icon_value: str) -> None:
"""
Called when the values of
:attr:`icon_active` and :attr:`icon_inactive` change.
"""
def set_icon(*args):
icon = icon_value if icon_value else "blank"
self.ids.thumb.ids.icon.icon = icon
Clock.schedule_once(set_icon, 0.2)
def on_active(self, instance_switch, active_value: bool) -> None:
"""Called when the values of :attr:`active` change."""
if self.theme_cls.material_style == "M3" and self.widget_style != "ios":
size = (
(
(dp(16), dp(16))
if not self.icon_inactive
else (dp(24), dp(24))
)
if not active_value
else (dp(24), dp(24))
)
icon = "blank"
color = (0, 0, 0, 0)
if self.icon_active and active_value:
icon = self.icon_active
color = (
self.icon_active_color
if self.icon_active_color
else self.theme_cls.text_color
)
elif self.icon_inactive and not active_value:
icon = self.icon_inactive
color = (
self.icon_inactive_color
if self.icon_inactive_color
else self.theme_cls.text_color
)
Animation(size=size, t="out_quad", d=0.2).start(self.ids.thumb)
Animation(color=color, t="out_quad", d=0.2).start(
self.ids.thumb.ids.icon
)
self.set_icon(self, icon)
self._update_thumb_pos()
# FIXME: If you move the cursor from the switch during the
# `on_touch_down` event, the animation of returning the thumb to
# the previous size does not work. The following code fixes this.
def on_thumb_down(self) -> None:
"""
Called at the on_touch_down event of the :class:`~Thumb` object.
Indicates the state of the switch "on/off" by an animation of
increasing the size of the thumb.
"""
if self.widget_style != "ios" and self.theme_cls.material_style == "M3":
if self.active:
size = (dp(28), dp(28))
pos = (
self.ids.thumb.pos[0] - dp(2),
self.ids.thumb.pos[1] - dp(1.8),
)
else:
size = (dp(26), dp(26))
pos = (
(
self.ids.thumb.pos[0] - dp(5),
self.ids.thumb.pos[1] - dp(5),
)
if not self.icon_inactive
else (
self.ids.thumb.pos[0] + dp(1),
self.ids.thumb.pos[1] - dp(1),
)
)
Animation(size=size, pos=pos, t="out_quad", d=0.2).start(
self.ids.thumb
)
def _update_thumb_pos(self, *args, animation=True):
if self.active:
_thumb_pos = (
self.width
- (
dp(14)
if self.widget_style == "ios"
or self.theme_cls.material_style == "M2"
else dp(28)
),
self.height / 2
- (
dp(12)
if self.widget_style == "ios"
or self.theme_cls.material_style == "M2"
else dp(16)
),
)
else:
_thumb_pos = (
0 if not self.icon_inactive else dp(-14),
self.height / 2
- (
dp(12)
if self.widget_style == "ios"
or self.theme_cls.material_style == "M2"
else dp(16)
),
)
Animation.cancel_all(self, "_thumb_pos")
if animation:
Animation(_thumb_pos=_thumb_pos, duration=0.2, t="out_quad").start(
self
)
else:
self._thumb_pos = _thumb_pos
def _check_style(self, *args):
if self.widget_style == "ios" or self.theme_cls.material_style == "M2":
self.set_icon(self, "")
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