95 lines
3.9 KiB
Python
95 lines
3.9 KiB
Python
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# -*- coding: utf-8 -*-
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from kivy.lang import Builder
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from kivy.metrics import sp
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from kivy.properties import OptionProperty, DictProperty, ListProperty
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from kivy.uix.label import Label
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from kivymd.material_resources import DEVICE_TYPE
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from kivymd.theming import ThemableBehavior
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Builder.load_string('''
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<MDLabel>
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disabled_color: self.theme_cls.disabled_hint_text_color
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text_size: (self.width, None)
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''')
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class MDLabel(ThemableBehavior, Label):
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font_style = OptionProperty(
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'Body1', options=['Body1', 'Body2', 'Caption', 'Subhead', 'Title',
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'Headline', 'Display1', 'Display2', 'Display3',
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'Display4', 'Button', 'Icon'])
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# Font, Bold, Mobile size, Desktop size (None if same as Mobile)
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_font_styles = DictProperty({'Body1': ['Roboto', False, 14, 13],
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'Body2': ['Roboto', True, 14, 13],
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'Caption': ['Roboto', False, 12, None],
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'Subhead': ['Roboto', False, 16, 15],
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'Title': ['Roboto', True, 20, None],
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'Headline': ['Roboto', False, 24, None],
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'Display1': ['Roboto', False, 34, None],
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'Display2': ['Roboto', False, 45, None],
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'Display3': ['Roboto', False, 56, None],
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'Display4': ['RobotoLight', False, 112, None],
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'Button': ['Roboto', True, 14, None],
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'Icon': ['Icons', False, 24, None]})
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theme_text_color = OptionProperty(None, allownone=True,
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options=['Primary', 'Secondary', 'Hint',
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'Error', 'Custom'])
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text_color = ListProperty(None, allownone=True)
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_currently_bound_property = {}
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def __init__(self, **kwargs):
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super(MDLabel, self).__init__(**kwargs)
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self.on_theme_text_color(None, self.theme_text_color)
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self.on_font_style(None, self.font_style)
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self.on_opposite_colors(None, self.opposite_colors)
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def on_font_style(self, instance, style):
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info = self._font_styles[style]
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self.font_name = info[0]
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self.bold = info[1]
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if DEVICE_TYPE == 'desktop' and info[3] is not None:
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self.font_size = sp(info[3])
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else:
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self.font_size = sp(info[2])
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def on_theme_text_color(self, instance, value):
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t = self.theme_cls
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op = self.opposite_colors
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setter = self.setter('color')
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t.unbind(**self._currently_bound_property)
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c = {}
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if value == 'Primary':
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c = {'text_color' if not op else 'opposite_text_color': setter}
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t.bind(**c)
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self.color = t.text_color if not op else t.opposite_text_color
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elif value == 'Secondary':
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c = {'secondary_text_color' if not op else
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'opposite_secondary_text_color': setter}
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t.bind(**c)
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self.color = t.secondary_text_color if not op else \
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t.opposite_secondary_text_color
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elif value == 'Hint':
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c = {'disabled_hint_text_color' if not op else
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'opposite_disabled_hint_text_color': setter}
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t.bind(**c)
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self.color = t.disabled_hint_text_color if not op else \
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t.opposite_disabled_hint_text_color
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elif value == 'Error':
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c = {'error_color': setter}
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t.bind(**c)
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self.color = t.error_color
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elif value == 'Custom':
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self.color = self.text_color if self.text_color else (0, 0, 0, 1)
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self._currently_bound_property = c
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def on_text_color(self, *args):
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if self.theme_text_color == 'Custom':
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self.color = self.text_color
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def on_opposite_colors(self, instance, value):
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self.on_theme_text_color(self, self.theme_text_color)
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