99 lines
3.4 KiB
Python
99 lines
3.4 KiB
Python
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# -*- coding: utf-8 -*-
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from kivy.clock import Clock
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from kivy.lang import Builder
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from kivy.metrics import dp
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from kivy.properties import ListProperty, StringProperty, OptionProperty
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from kivy.uix.boxlayout import BoxLayout
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from kivymd.backgroundcolorbehavior import BackgroundColorBehavior
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from kivymd.button import MDIconButton
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from kivymd.theming import ThemableBehavior
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from kivymd.elevationbehavior import ElevationBehavior
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Builder.load_string('''
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#:import m_res kivymd.material_resources
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<Toolbar>
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size_hint_y: None
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height: root.theme_cls.standard_increment
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background_color: root.background_color
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padding: [root.theme_cls.horizontal_margins - dp(12), 0]
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opposite_colors: True
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elevation: 6
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BoxLayout:
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id: left_actions
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orientation: 'horizontal'
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size_hint_x: None
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padding: [0, (self.height - dp(48))/2]
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BoxLayout:
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padding: dp(12), 0
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MDLabel:
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font_style: 'Title'
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opposite_colors: root.opposite_colors
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theme_text_color: root.title_theme_color
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text_color: root.title_color
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text: root.title
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shorten: True
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shorten_from: 'right'
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BoxLayout:
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id: right_actions
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orientation: 'horizontal'
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size_hint_x: None
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padding: [0, (self.height - dp(48))/2]
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''')
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class Toolbar(ThemableBehavior, ElevationBehavior, BackgroundColorBehavior,
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BoxLayout):
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left_action_items = ListProperty()
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"""The icons on the left of the Toolbar.
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To add one, append a list like the following:
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['icon_name', callback]
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where 'icon_name' is a string that corresponds to an icon definition and
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callback is the function called on a touch release event.
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"""
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right_action_items = ListProperty()
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"""The icons on the left of the Toolbar.
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Works the same way as :attr:`left_action_items`
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"""
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title = StringProperty()
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"""The text displayed on the Toolbar."""
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title_theme_color = OptionProperty(None, allownone=True,
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options=['Primary', 'Secondary', 'Hint',
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'Error', 'Custom'])
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title_color = ListProperty(None, allownone=True)
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background_color = ListProperty([0, 0, 0, 1])
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def __init__(self, **kwargs):
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super(Toolbar, self).__init__(**kwargs)
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Clock.schedule_once(
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lambda x: self.on_left_action_items(0, self.left_action_items))
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Clock.schedule_once(
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lambda x: self.on_right_action_items(0,
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self.right_action_items))
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def on_left_action_items(self, instance, value):
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self.update_action_bar(self.ids['left_actions'], value)
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def on_right_action_items(self, instance, value):
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self.update_action_bar(self.ids['right_actions'], value)
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def update_action_bar(self, action_bar, action_bar_items):
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action_bar.clear_widgets()
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new_width = 0
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for item in action_bar_items:
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new_width += dp(48)
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action_bar.add_widget(MDIconButton(icon=item[0],
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on_release=item[1],
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opposite_colors=True,
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text_color=self.title_color,
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theme_text_color=self.title_theme_color))
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action_bar.width = new_width
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