241 lines
9.0 KiB
Python
241 lines
9.0 KiB
Python
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# -*- coding: utf-8 -*-
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from kivy.lang import Builder
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from kivy.properties import StringProperty, ListProperty, NumericProperty
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from kivy.uix.behaviors import ToggleButtonBehavior
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from kivy.uix.label import Label
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from kivy.uix.floatlayout import FloatLayout
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from kivy.properties import AliasProperty, BooleanProperty
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from kivy.metrics import dp, sp
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from kivy.animation import Animation
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from kivy.utils import get_color_from_hex
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from kivymd.color_definitions import colors
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from kivymd.icon_definitions import md_icons
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from kivymd.theming import ThemableBehavior
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from kivymd.elevationbehavior import RoundElevationBehavior
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from kivymd.ripplebehavior import CircularRippleBehavior
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from kivy.uix.behaviors import ButtonBehavior
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from kivy.uix.widget import Widget
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Builder.load_string('''
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<MDCheckbox>:
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canvas:
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Clear
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Color:
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rgba: self.color
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Rectangle:
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texture: self.texture
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size: self.texture_size
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pos: int(self.center_x - self.texture_size[0] / 2.), int(self.center_y - self.texture_size[1] / 2.)
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text: self._radio_icon if self.group else self._checkbox_icon
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font_name: 'Icons'
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font_size: sp(24)
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color: self.theme_cls.primary_color if self.active else self.theme_cls.secondary_text_color
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halign: 'center'
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valign: 'middle'
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<Thumb>:
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color: 1, 1, 1, 1
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canvas:
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Color:
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rgba: self.color
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Ellipse:
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size: self.size
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pos: self.pos
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<MDSwitch>:
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canvas.before:
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Color:
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rgba: self._track_color_disabled if self.disabled else \
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(self._track_color_active if self.active else self._track_color_normal)
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Ellipse:
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size: dp(16), dp(16)
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pos: self.x, self.center_y - dp(8)
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angle_start: 180
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angle_end: 360
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Rectangle:
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size: self.width - dp(16), dp(16)
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pos: self.x + dp(8), self.center_y - dp(8)
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Ellipse:
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size: dp(16), dp(16)
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pos: self.right - dp(16), self.center_y - dp(8)
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angle_start: 0
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angle_end: 180
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on_release: thumb.trigger_action()
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Thumb:
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id: thumb
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size_hint: None, None
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size: dp(24), dp(24)
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pos: root._thumb_pos
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color: root.thumb_color_disabled if root.disabled else \
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(root.thumb_color_down if root.active else root.thumb_color)
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elevation: 4 if root.active else 2
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on_release: setattr(root, 'active', not root.active)
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''')
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class MDCheckbox(ThemableBehavior, CircularRippleBehavior,
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ToggleButtonBehavior, Label):
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active = BooleanProperty(False)
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_checkbox_icon = StringProperty(
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u"{}".format(md_icons['square-o']))
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_radio_icon = StringProperty(u"{}".format(md_icons['circle-o']))
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_icon_active = StringProperty(u"{}".format(md_icons['check-square']))
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def __init__(self, **kwargs):
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super(MDCheckbox, self).__init__(**kwargs)
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self.register_event_type('on_active')
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self.check_anim_out = Animation(font_size=0, duration=.1, t='out_quad')
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self.check_anim_in = Animation(font_size=sp(24), duration=.1,
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t='out_quad')
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self.check_anim_out.bind(
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on_complete=lambda *x: self.check_anim_in.start(self))
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def on_state(self, *args):
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if self.state == 'down':
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self.check_anim_in.cancel(self)
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self.check_anim_out.start(self)
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self._radio_icon = u"{}".format(md_icons['dot-circle'])
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self._checkbox_icon = u"{}".format(md_icons['check-square'])
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self.active = True
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else:
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self.check_anim_in.cancel(self)
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self.check_anim_out.start(self)
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self._radio_icon = u"{}".format(md_icons['circle-o'])
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self._checkbox_icon = u"{}".format(
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md_icons['square-o'])
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self.active = False
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def on_active(self, instance, value):
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self.state = 'down' if value else 'normal'
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class Thumb(RoundElevationBehavior, CircularRippleBehavior, ButtonBehavior,
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Widget):
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ripple_scale = NumericProperty(2)
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def _set_ellipse(self, instance, value):
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self.ellipse.size = (self.ripple_rad, self.ripple_rad)
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if self.ellipse.size[0] > self.width * 1.5 and not self.fading_out:
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self.fade_out()
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self.ellipse.pos = (self.center_x - self.ripple_rad / 2.,
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self.center_y - self.ripple_rad / 2.)
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self.stencil.pos = (
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self.center_x - (self.width * self.ripple_scale) / 2,
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self.center_y - (self.height * self.ripple_scale) / 2)
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class MDSwitch(ThemableBehavior, ButtonBehavior, FloatLayout):
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active = BooleanProperty(False)
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_thumb_color = ListProperty(get_color_from_hex(colors['Grey']['50']))
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def _get_thumb_color(self):
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return self._thumb_color
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def _set_thumb_color(self, color, alpha=None):
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if len(color) == 2:
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self._thumb_color = get_color_from_hex(colors[color[0]][color[1]])
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if alpha:
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self._thumb_color[3] = alpha
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elif len(color) == 4:
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self._thumb_color = color
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thumb_color = AliasProperty(_get_thumb_color, _set_thumb_color,
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bind=['_thumb_color'])
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_thumb_color_down = ListProperty([1, 1, 1, 1])
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def _get_thumb_color_down(self):
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return self._thumb_color_down
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def _set_thumb_color_down(self, color, alpha=None):
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if len(color) == 2:
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self._thumb_color_down = get_color_from_hex(
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colors[color[0]][color[1]])
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if alpha:
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self._thumb_color_down[3] = alpha
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else:
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self._thumb_color_down[3] = 1
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elif len(color) == 4:
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self._thumb_color_down = color
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thumb_color_down = AliasProperty(_get_thumb_color_down,
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_set_thumb_color_down,
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bind=['_thumb_color_down'])
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_thumb_color_disabled = ListProperty(
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get_color_from_hex(colors['Grey']['400']))
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def _get_thumb_color_disabled(self):
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return self._thumb_color_disabled
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def _set_thumb_color_disabled(self, color, alpha=None):
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if len(color) == 2:
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self._thumb_color_disabled = get_color_from_hex(
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colors[color[0]][color[1]])
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if alpha:
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self._thumb_color_disabled[3] = alpha
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elif len(color) == 4:
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self._thumb_color_disabled = color
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thumb_color_down = AliasProperty(_get_thumb_color_disabled,
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_set_thumb_color_disabled,
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bind=['_thumb_color_disabled'])
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_track_color_active = ListProperty()
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_track_color_normal = ListProperty()
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_track_color_disabled = ListProperty()
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_thumb_pos = ListProperty([0, 0])
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def __init__(self, **kwargs):
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super(MDSwitch, self).__init__(**kwargs)
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self.theme_cls.bind(theme_style=self._set_colors,
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primary_color=self._set_colors,
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primary_palette=self._set_colors)
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self._set_colors()
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def _set_colors(self, *args):
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self._track_color_normal = self.theme_cls.disabled_hint_text_color
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if self.theme_cls.theme_style == 'Dark':
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self._track_color_active = self.theme_cls.primary_color
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self._track_color_active[3] = .5
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self._track_color_disabled = get_color_from_hex('FFFFFF')
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self._track_color_disabled[3] = .1
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self.thumb_color = get_color_from_hex(colors['Grey']['400'])
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self.thumb_color_down = get_color_from_hex(
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colors[self.theme_cls.primary_palette]['200'])
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self.thumb_color_disabled = get_color_from_hex(
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colors['Grey']['800'])
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else:
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self._track_color_active = get_color_from_hex(
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colors[self.theme_cls.primary_palette]['200'])
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self._track_color_active[3] = .5
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self._track_color_disabled = self.theme_cls.disabled_hint_text_color
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self.thumb_color_down = self.theme_cls.primary_color
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def on_pos(self, *args):
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if self.active:
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self._thumb_pos = (self.right - dp(12), self.center_y - dp(12))
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else:
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self._thumb_pos = (self.x - dp(12), self.center_y - dp(12))
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self.bind(active=self._update_thumb)
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def _update_thumb(self, *args):
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if self.active:
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Animation.cancel_all(self, '_thumb_pos')
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anim = Animation(
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_thumb_pos=(self.right - dp(12), self.center_y - dp(12)),
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duration=.2,
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t='out_quad')
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else:
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Animation.cancel_all(self, '_thumb_pos')
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anim = Animation(
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_thumb_pos=(self.x - dp(12), self.center_y - dp(12)),
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duration=.2,
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t='out_quad')
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anim.start(self)
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