mirror of
https://github.com/markqvist/Sideband.git
synced 2024-12-28 17:09:34 -05:00
318 lines
8.3 KiB
Python
318 lines
8.3 KiB
Python
"""
|
|
Components/Slider
|
|
=================
|
|
|
|
.. seealso::
|
|
|
|
`Material Design spec, Sliders <https://material.io/components/sliders>`_
|
|
|
|
.. rubric:: Sliders allow users to make selections from a range of values.
|
|
|
|
.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/slider.png
|
|
:align: center
|
|
"""
|
|
|
|
__all__ = ("MDSlider",)
|
|
|
|
import os
|
|
|
|
from kivy.clock import Clock
|
|
from kivy.lang import Builder
|
|
from kivy.metrics import dp
|
|
from kivy.properties import (
|
|
BooleanProperty,
|
|
ColorProperty,
|
|
ListProperty,
|
|
VariableListProperty,
|
|
)
|
|
from kivy.uix.slider import Slider
|
|
|
|
from kivymd import uix_path
|
|
from kivymd.theming import ThemableBehavior
|
|
|
|
with open(
|
|
os.path.join(uix_path, "slider", "slider.kv"), encoding="utf-8"
|
|
) as kv_file:
|
|
Builder.load_string(kv_file.read())
|
|
|
|
|
|
class MDSlider(ThemableBehavior, Slider):
|
|
"""
|
|
Class for creating a Slider widget. See in the
|
|
:class:`~kivy.uix.slider.Slider` class documentation.
|
|
"""
|
|
|
|
active = BooleanProperty(False)
|
|
"""
|
|
If the slider is clicked.
|
|
|
|
:attr:`active` is an :class:`~kivy.properties.BooleanProperty`
|
|
and defaults to `False`.
|
|
"""
|
|
|
|
color = ColorProperty(None)
|
|
"""
|
|
Color slider in (r, g, b, a) or string format.
|
|
|
|
.. code-block:: kv
|
|
|
|
MDSlider
|
|
color: "red"
|
|
|
|
.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/slide-color.png
|
|
:align: center
|
|
|
|
:attr:`color` is an :class:`~kivy.properties.ColorProperty`
|
|
and defaults to `None`.
|
|
"""
|
|
|
|
hint = BooleanProperty(True)
|
|
"""
|
|
If True, then the current value is displayed above the slider.
|
|
|
|
.. code-block:: kv
|
|
|
|
MDSlider
|
|
hint: True
|
|
|
|
.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/slide-hint.png
|
|
:align: center
|
|
|
|
:attr:`hint` is an :class:`~kivy.properties.BooleanProperty`
|
|
and defaults to `True`.
|
|
"""
|
|
|
|
hint_bg_color = ColorProperty(None)
|
|
"""
|
|
Hint rectangle color in (r, g, b, a) or string format.
|
|
|
|
.. code-block:: kv
|
|
|
|
MDSlider
|
|
hint: True
|
|
hint_bg_color: "red"
|
|
|
|
.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/slide-hint-bg-color.png
|
|
:align: center
|
|
|
|
:attr:`hint_bg_color` is an :class:`~kivy.properties.ColorProperty`
|
|
and defaults to `[0, 0, 0, 0]`.
|
|
"""
|
|
|
|
hint_text_color = ColorProperty(None)
|
|
"""
|
|
Hint text color in in (r, g, b, a) or string format.
|
|
|
|
.. code-block:: kv
|
|
|
|
MDSlider
|
|
hint: True
|
|
hint_bg_color: "red"
|
|
hint_text_color: "white"
|
|
|
|
.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/slide-hint-text-color.png
|
|
:align: center
|
|
|
|
:attr:`hint_text_color` is an :class:`~kivy.properties.ColorProperty`
|
|
and defaults to `None`.
|
|
"""
|
|
|
|
hint_radius = VariableListProperty([dp(4), dp(4), dp(4), dp(4)])
|
|
"""
|
|
Hint radius.
|
|
|
|
.. code-block:: kv
|
|
|
|
MDSlider
|
|
hint: True
|
|
hint_bg_color: "red"
|
|
hint_text_color: "white"
|
|
hint_radius: [6, 0, 6, 0]
|
|
|
|
.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/slide-hint-radius.png
|
|
:align: center
|
|
|
|
:attr:`hint_radius` is an :class:`~kivy.properties.VariableListProperty`
|
|
and defaults to `[dp(4), dp(4), dp(4), dp(4)]`.
|
|
"""
|
|
|
|
thumb_color_active = ColorProperty(None)
|
|
"""
|
|
The color in (r, g, b, a) or string format of the thumb when the slider is active.
|
|
|
|
.. versionadded:: 1.0.0
|
|
|
|
.. code-block:: kv
|
|
|
|
MDSlider
|
|
thumb_color_active: "red"
|
|
|
|
.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/slide-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 slider is inactive.
|
|
|
|
.. versionadded:: 1.0.0
|
|
|
|
.. code-block:: kv
|
|
|
|
MDSlider
|
|
thumb_color_inactive: "red"
|
|
|
|
.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/slide-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 slider is
|
|
in the disabled state.
|
|
|
|
.. versionadded:: 1.0.0
|
|
|
|
.. code-block:: kv
|
|
|
|
MDSlider
|
|
value: 55
|
|
disabled: True
|
|
thumb_color_disabled: "red"
|
|
|
|
.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/slide-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 slider is active.
|
|
|
|
.. versionadded:: 1.0.0
|
|
|
|
.. code-block:: kv
|
|
|
|
MDSlider
|
|
track_color_active: "red"
|
|
|
|
.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/slide-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 slider is inactive.
|
|
|
|
.. versionadded:: 1.0.0
|
|
|
|
.. code-block:: kv
|
|
|
|
MDSlider
|
|
track_color_inactive: "red"
|
|
|
|
.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/slide-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 slider is
|
|
in the disabled state.
|
|
|
|
.. versionadded:: 1.0.0
|
|
|
|
.. code-block:: kv
|
|
|
|
MDSlider
|
|
disabled: True
|
|
track_color_disabled: "red"
|
|
|
|
.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/slide-track-color-disabled.png
|
|
:align: center
|
|
|
|
:attr:`track_color_disabled` is an :class:`~kivy.properties.ColorProperty`
|
|
and default to `None`.
|
|
"""
|
|
|
|
show_off = BooleanProperty(True)
|
|
"""
|
|
Show the `'off'` ring when set to minimum value.
|
|
|
|
:attr:`show_off` is an :class:`~kivy.properties.BooleanProperty`
|
|
and defaults to `True`.
|
|
"""
|
|
|
|
_thumb_pos = ListProperty([0, 0])
|
|
# Internal state of ring.
|
|
_is_off = BooleanProperty(False)
|
|
# Internal adjustment to reposition sliders for ring.
|
|
_offset = ListProperty((0, 0))
|
|
|
|
def __init__(self, **kwargs):
|
|
super().__init__(**kwargs)
|
|
Clock.schedule_once(self.set_thumb_icon)
|
|
|
|
def set_thumb_icon(self, *args) -> None:
|
|
self.ids.thumb.ids.icon.icon = "blank"
|
|
|
|
def on_hint(self, instance, value) -> None:
|
|
def on_hint(*args):
|
|
if not value:
|
|
self.remove_widget(self.ids.hint_box)
|
|
|
|
# Schedule using for declarative style.
|
|
# Otherwise get AttributeError exception.
|
|
Clock.schedule_once(on_hint)
|
|
|
|
def on_value_normalized(self, *args) -> None:
|
|
"""
|
|
When the ``value == min`` set it to `'off'` state and make slider
|
|
a ring.
|
|
"""
|
|
|
|
self._update_is_off()
|
|
|
|
def on_show_off(self, *args) -> None:
|
|
self._update_is_off()
|
|
|
|
def on__is_off(self, *args) -> None:
|
|
self._update_offset()
|
|
|
|
def on_active(self, *args) -> None:
|
|
self._update_offset()
|
|
|
|
def on_touch_down(self, touch):
|
|
if super().on_touch_down(touch):
|
|
self.active = True
|
|
|
|
def on_touch_up(self, touch):
|
|
if super().on_touch_up(touch):
|
|
self.active = False
|
|
|
|
def _update_offset(self):
|
|
"""
|
|
Offset is used to shift the sliders so the background color
|
|
shows through the off circle.
|
|
"""
|
|
|
|
d = 2 if self.active else 0
|
|
self._offset = (dp(11 + d), dp(11 + d)) if self._is_off else (0, 0)
|
|
|
|
def _update_is_off(self):
|
|
self._is_off = self.show_off and (self.value_normalized == 0)
|