card.py

# -*- coding: utf-8 -*-
from kivy.lang import Builder
from kivy.properties import BoundedNumericProperty, ReferenceListProperty, ListProperty,BooleanProperty
from kivy.uix.boxlayout import BoxLayout
from kivymd.elevationbehavior import ElevationBehavior
from kivymd.theming import ThemableBehavior
from kivy.metrics import dp
from kivy.uix.widget import Widget

Builder.load_string('''
<MDCard>
    canvas:
        Color:
            rgba: self.background_color
        RoundedRectangle:
            size: self.size
            pos: self.pos
            radius: [self.border_radius]
        Color:
            rgba: self.theme_cls.divider_color
            a: self.border_color_a
        Line:
            rounded_rectangle: (self.pos[0],self.pos[1],self.size[0],self.size[1],self.border_radius) 
    background_color: self.theme_cls.bg_light
    
<MDSeparator>
    canvas:
        Color:
            rgba: self.theme_cls.divider_color
        Rectangle:
            size: self.size
            pos: self.pos
''')


class MDSeparator(ThemableBehavior, BoxLayout):
    """ A separator line """
    def __init__(self, *args, **kwargs):
        super(MDSeparator, self).__init__(*args, **kwargs)
        self.on_orientation()
    
    def on_orientation(self,*args):
        self.size_hint = (1, None) if self.orientation == 'horizontal' else (None, 1)
        if self.orientation == 'horizontal':
            self.height = dp(1)
        else:
            self.width = dp(1)


class MDCard(ThemableBehavior, ElevationBehavior, BoxLayout):
    r = BoundedNumericProperty(1., min=0., max=1.)
    g = BoundedNumericProperty(1., min=0., max=1.)
    b = BoundedNumericProperty(1., min=0., max=1.)
    a = BoundedNumericProperty(0., min=0., max=1.)
    
    border_radius = BoundedNumericProperty(dp(3),min=0)
    border_color_a = BoundedNumericProperty(0, min=0., max=1.)
    background_color = ReferenceListProperty(r, g, b, a)