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