136 lines
2.9 KiB
Python
136 lines
2.9 KiB
Python
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"""
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Components/Dropdown Item
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========================
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.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/dropdown-item.png
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:align: center
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Usage
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-----
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.. code-block:: python
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from kivy.lang import Builder
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from kivymd.app import MDApp
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KV = '''
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Screen
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MDDropDownItem:
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id: drop_item
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pos_hint: {'center_x': .5, 'center_y': .5}
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text: 'Item'
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on_release: self.set_item("New Item")
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'''
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class Test(MDApp):
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def __init__(self, **kwargs):
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super().__init__(**kwargs)
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self.screen = Builder.load_string(KV)
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def build(self):
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return self.screen
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Test().run()
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.. seealso::
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`Work with the class MDDropdownMenu see here <https://kivymd.readthedocs.io/en/latest/components/menu/index.html#center-position>`_
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"""
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__all__ = ("MDDropDownItem",)
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from kivy.lang import Builder
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from kivy.properties import NumericProperty, StringProperty
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from kivy.uix.behaviors import ButtonBehavior
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from kivy.uix.widget import Widget
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from kivymd.theming import ThemableBehavior
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from kivymd.uix.behaviors import RectangularRippleBehavior
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from kivymd.uix.boxlayout import MDBoxLayout
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Builder.load_string(
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"""
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<_Triangle>:
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canvas:
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Color:
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rgba: root.theme_cls.text_color
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Triangle:
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points:
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[ \
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self.right-14, self.y+7, \
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self.right-7, self.y+7, \
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self.right-7, self.y+14 \
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]
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<MDDropDownItem>
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orientation: "vertical"
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adaptive_size: True
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spacing: "5dp"
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padding: "5dp", "5dp", "5dp", 0
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MDBoxLayout:
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adaptive_size: True
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spacing: "10dp"
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Label:
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id: label_item
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size_hint: None, None
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size: self.texture_size
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color: root.theme_cls.text_color
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font_size: root.font_size
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_Triangle:
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size_hint: None, None
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size: "20dp", "20dp"
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MDSeparator:
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"""
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)
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class _Triangle(ThemableBehavior, Widget):
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pass
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class MDDropDownItem(
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ThemableBehavior, RectangularRippleBehavior, ButtonBehavior, MDBoxLayout
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):
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text = StringProperty()
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"""
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Text item.
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:attr:`text` is a :class:`~kivy.properties.StringProperty`
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and defaults to `''`.
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"""
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current_item = StringProperty()
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"""
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Current name item.
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:attr:`current_item` is a :class:`~kivy.properties.StringProperty`
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and defaults to `''`.
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"""
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font_size = NumericProperty("16sp")
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"""
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Item font size.
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:attr:`font_size` is a :class:`~kivy.properties.NumericProperty`
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and defaults to `'16sp'`.
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"""
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def on_text(self, instance, value):
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self.ids.label_item.text = value
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def set_item(self, name_item):
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"""Sets new text for an item."""
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self.ids.label_item.text = name_item
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self.current_item = name_item
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