mirror of
https://github.com/liberatedsystems/openCom-Companion.git
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510 lines
14 KiB
Python
Executable File
510 lines
14 KiB
Python
Executable File
"""
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Components/BottomSheet
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======================
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.. seealso::
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`Material Design spec, Sheets: bottom <https://material.io/components/sheets-bottom>`_
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.. rubric:: Bottom sheets are surfaces containing supplementary content that are anchored to the bottom of the screen.
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.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/bottomsheet.png
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:align: center
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Two classes are available to you :class:`~MDListBottomSheet` and :class:`~MDGridBottomSheet`
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for standard bottom sheets dialogs:
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.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/grid-list-bottomsheets.png
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:align: center
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Usage :class:`~MDListBottomSheet`
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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.toast import toast
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from kivymd.uix.bottomsheet import MDListBottomSheet
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from kivymd.app import MDApp
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KV = '''
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MDScreen:
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MDTopAppBar:
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title: "Example BottomSheet"
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pos_hint: {"top": 1}
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elevation: 10
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MDRaisedButton:
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text: "Open list bottom sheet"
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on_release: app.show_example_list_bottom_sheet()
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pos_hint: {"center_x": .5, "center_y": .5}
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'''
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class Example(MDApp):
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def build(self):
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return Builder.load_string(KV)
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def callback_for_menu_items(self, *args):
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toast(args[0])
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def show_example_list_bottom_sheet(self):
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bottom_sheet_menu = MDListBottomSheet()
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for i in range(1, 11):
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bottom_sheet_menu.add_item(
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f"Standart Item {i}",
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lambda x, y=i: self.callback_for_menu_items(
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f"Standart Item {y}"
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),
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)
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bottom_sheet_menu.open()
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Example().run()
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The :attr:`~MDListBottomSheet.add_item` method of the :class:`~MDListBottomSheet`
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class takes the following arguments:
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``text`` - element text;
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``callback`` - function that will be called when clicking on an item;
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There is also an optional argument ``icon``,
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which will be used as an icon to the left of the item:
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.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/icon-list-bottomsheets.png
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:align: center
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.. rubric:: Using the :class:`~MDGridBottomSheet` class is similar
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to using the :class:`~MDListBottomSheet` class:
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.. code-block:: python
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from kivy.lang import Builder
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from kivymd.toast import toast
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from kivymd.uix.bottomsheet import MDGridBottomSheet
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from kivymd.app import MDApp
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KV = '''
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MDScreen:
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MDTopAppBar:
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title: 'Example BottomSheet'
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pos_hint: {"top": 1}
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elevation: 10
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MDRaisedButton:
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text: "Open grid bottom sheet"
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on_release: app.show_example_grid_bottom_sheet()
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pos_hint: {"center_x": .5, "center_y": .5}
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'''
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class Example(MDApp):
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def build(self):
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return Builder.load_string(KV)
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def callback_for_menu_items(self, *args):
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toast(args[0])
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def show_example_grid_bottom_sheet(self):
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bottom_sheet_menu = MDGridBottomSheet()
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data = {
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"Facebook": "facebook-box",
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"YouTube": "youtube",
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"Twitter": "twitter-box",
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"Da Cloud": "cloud-upload",
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"Camera": "camera",
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}
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for item in data.items():
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bottom_sheet_menu.add_item(
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item[0],
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lambda x, y=item[0]: self.callback_for_menu_items(y),
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icon_src=item[1],
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)
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bottom_sheet_menu.open()
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Example().run()
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.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/grid-bottomsheet.png
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:align: center
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.. rubric:: You can use custom content for bottom sheet dialogs:
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.. code-block:: python
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from kivy.lang import Builder
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from kivy.factory import Factory
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from kivymd.uix.bottomsheet import MDCustomBottomSheet
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from kivymd.app import MDApp
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KV = '''
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<ItemForCustomBottomSheet@OneLineIconListItem>
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on_press: app.custom_sheet.dismiss()
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icon: ""
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IconLeftWidget:
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icon: root.icon
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<ContentCustomSheet@BoxLayout>:
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orientation: "vertical"
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size_hint_y: None
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height: "400dp"
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MDTopAppBar:
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title: 'Custom bottom sheet:'
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ScrollView:
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MDGridLayout:
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cols: 1
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adaptive_height: True
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ItemForCustomBottomSheet:
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icon: "page-previous"
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text: "Preview"
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ItemForCustomBottomSheet:
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icon: "exit-to-app"
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text: "Exit"
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MDScreen:
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MDTopAppBar:
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title: 'Example BottomSheet'
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pos_hint: {"top": 1}
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elevation: 10
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MDRaisedButton:
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text: "Open custom bottom sheet"
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on_release: app.show_example_custom_bottom_sheet()
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pos_hint: {"center_x": .5, "center_y": .5}
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'''
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class Example(MDApp):
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custom_sheet = None
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def build(self):
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return Builder.load_string(KV)
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def show_example_custom_bottom_sheet(self):
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self.custom_sheet = MDCustomBottomSheet(screen=Factory.ContentCustomSheet())
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self.custom_sheet.open()
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Example().run()
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.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/custom-bottomsheet.png
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:align: center
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.. note:: When you use the :attr:`~MDCustomBottomSheet` class, you must specify
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the height of the user-defined content exactly, otherwise ``dp(100)``
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heights will be used for your ``ContentCustomSheet`` class:
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.. code-block:: kv
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<ContentCustomSheet@BoxLayout>:
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orientation: "vertical"
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size_hint_y: None
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height: "400dp"
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.. note:: The height of the bottom sheet dialog will never exceed half
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the height of the screen!
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"""
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__all__ = (
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"MDGridBottomSheet",
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"GridBottomSheetItem",
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"MDListBottomSheet",
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"MDCustomBottomSheet",
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"MDBottomSheet",
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)
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import os
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from kivy.animation import Animation
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from kivy.clock import Clock
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from kivy.core.window import Window
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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 (
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BooleanProperty,
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ColorProperty,
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NumericProperty,
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ObjectProperty,
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OptionProperty,
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StringProperty,
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)
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from kivy.uix.behaviors import ButtonBehavior
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from kivy.uix.boxlayout import BoxLayout
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from kivy.uix.floatlayout import FloatLayout
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from kivy.uix.gridlayout import GridLayout
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from kivy.uix.modalview import ModalView
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from kivy.uix.scrollview import ScrollView
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from kivymd import images_path, uix_path
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from kivymd.theming import ThemableBehavior
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from kivymd.uix.behaviors import BackgroundColorBehavior
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from kivymd.uix.label import MDIcon
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from kivymd.uix.list import ILeftBody, OneLineIconListItem, OneLineListItem
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with open(
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os.path.join(uix_path, "bottomsheet", "bottomsheet.kv"),
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encoding="utf-8",
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) as kv_file:
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Builder.load_string(kv_file.read())
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class SheetList(ScrollView):
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pass
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class BsPadding(ButtonBehavior, FloatLayout):
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pass
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class BottomSheetContent(BackgroundColorBehavior, GridLayout):
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pass
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class MDBottomSheet(ThemableBehavior, ModalView):
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background = f"{images_path}transparent.png"
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"""Private attribute."""
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duration_opening = NumericProperty(0.15)
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"""
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The duration of the bottom sheet dialog opening animation.
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:attr:`duration_opening` is an :class:`~kivy.properties.NumericProperty`
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and defaults to `0.15`.
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"""
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duration_closing = NumericProperty(0.15)
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"""
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The duration of the bottom sheet dialog closing animation.
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:attr:`duration_closing` is an :class:`~kivy.properties.NumericProperty`
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and defaults to `0.15`.
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"""
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radius = NumericProperty(25)
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"""
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The value of the rounding of the corners of the dialog.
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:attr:`radius` is an :class:`~kivy.properties.NumericProperty`
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and defaults to `25`.
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"""
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radius_from = OptionProperty(
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None,
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options=[
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"top_left",
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"top_right",
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"top",
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"bottom_right",
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"bottom_left",
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"bottom",
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],
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allownone=True,
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)
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"""
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Sets which corners to cut from the dialog. Available options are:
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(`"top_left"`, `"top_right"`, `"top"`, `"bottom_right"`, `"bottom_left"`, `"bottom"`).
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.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/bottomsheet-radius-from.png
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:align: center
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:attr:`radius_from` is an :class:`~kivy.properties.OptionProperty`
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and defaults to `None`.
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"""
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animation = BooleanProperty(False)
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"""
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Whether to use animation for opening and closing of the bottomsheet or not.
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:attr:`animation` is an :class:`~kivy.properties.BooleanProperty`
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and defaults to `False`.
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"""
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bg_color = ColorProperty(None)
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"""
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Dialog background color in ``rgba`` format.
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:attr:`bg_color` is an :class:`~kivy.properties.ColorProperty`
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and defaults to `[]`.
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"""
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value_transparent = ColorProperty([0, 0, 0, 0.8])
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"""
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Background transparency value when opening a dialog.
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:attr:`value_transparent` is an :class:`~kivy.properties.ColorProperty`
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and defaults to `[0, 0, 0, 0.8]`.
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"""
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_upper_padding = ObjectProperty()
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_gl_content = ObjectProperty()
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_position_content = NumericProperty()
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def open(self, *args):
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super().open(*args)
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def add_widget(self, widget, index=0, canvas=None):
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super().add_widget(widget, index, canvas)
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def dismiss(self, *args, **kwargs):
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def dismiss(*args):
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self.dispatch("on_pre_dismiss")
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self._gl_content.clear_widgets()
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self._real_remove_widget()
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self.dispatch("on_dismiss")
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if self.animation:
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a = Animation(height=0, d=self.duration_closing)
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a.bind(on_complete=dismiss)
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a.start(self._gl_content)
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else:
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dismiss()
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def resize_content_layout(self, content, layout, interval=0):
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if not layout.ids.get("box_sheet_list"):
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_layout = layout
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else:
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_layout = layout.ids.box_sheet_list
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if _layout.height > Window.height / 2:
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height = Window.height / 2
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else:
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height = _layout.height
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if self.animation:
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Animation(height=height, d=self.duration_opening).start(_layout)
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Animation(height=height, d=self.duration_opening).start(content)
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else:
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layout.height = height
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content.height = height
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class ListBottomSheetIconLeft(ILeftBody, MDIcon):
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pass
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class MDCustomBottomSheet(MDBottomSheet):
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screen = ObjectProperty()
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"""
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Custom content.
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:attr:`screen` is an :class:`~kivy.properties.ObjectProperty`
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and defaults to `None`.
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"""
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def __init__(self, **kwargs):
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super().__init__(**kwargs)
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self._gl_content.add_widget(self.screen)
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Clock.schedule_once(
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lambda x: self.resize_content_layout(self._gl_content, self.screen),
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0,
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)
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class MDListBottomSheet(MDBottomSheet):
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sheet_list = ObjectProperty()
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"""
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:attr:`sheet_list` is an :class:`~kivy.properties.ObjectProperty`
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and defaults to `None`.
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"""
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def __init__(self, **kwargs):
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super().__init__(**kwargs)
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self.sheet_list = SheetList(size_hint_y=None)
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self._gl_content.add_widget(self.sheet_list)
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Clock.schedule_once(
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lambda x: self.resize_content_layout(
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self._gl_content, self.sheet_list
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),
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0,
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)
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def add_item(self, text, callback, icon=None):
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"""
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:arg text: element text;
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:arg callback: function that will be called when clicking on an item;
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:arg icon: which will be used as an icon to the left of the item;
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"""
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if icon:
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item = OneLineIconListItem(text=text, on_release=callback)
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item.add_widget(ListBottomSheetIconLeft(icon=icon))
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else:
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item = OneLineListItem(text=text, on_release=callback)
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item.bind(on_release=lambda x: self.dismiss())
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self.sheet_list.ids.box_sheet_list.add_widget(item)
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class GridBottomSheetItem(ButtonBehavior, BoxLayout):
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source = StringProperty()
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"""
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Icon path if you use a local image or icon name
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if you use icon names from a file ``kivymd/icon_definitions.py``.
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:attr:`source` is an :class:`~kivy.properties.StringProperty`
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and defaults to `''`.
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"""
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caption = StringProperty()
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"""
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Item text.
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:attr:`caption` is an :class:`~kivy.properties.StringProperty`
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and defaults to `''`.
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"""
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icon_size = NumericProperty("24sp")
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"""
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Icon size.
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:attr:`caption` is an :class:`~kivy.properties.StringProperty`
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and defaults to `'24sp'`.
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"""
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class MDGridBottomSheet(MDBottomSheet):
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def __init__(self, **kwargs):
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super().__init__(**kwargs)
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self.sheet_list = SheetList(size_hint_y=None)
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self.sheet_list.ids.box_sheet_list.cols = 3
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self.sheet_list.ids.box_sheet_list.padding = (dp(16), 0, dp(16), dp(96))
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self._gl_content.add_widget(self.sheet_list)
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Clock.schedule_once(
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lambda x: self.resize_content_layout(
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self._gl_content, self.sheet_list
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),
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0,
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)
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def add_item(self, text, callback, icon_src):
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"""
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:arg text: element text;
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:arg callback: function that will be called when clicking on an item;
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:arg icon_src: icon item;
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"""
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def tap_on_item(instance):
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callback(instance)
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self.dismiss()
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item = GridBottomSheetItem(
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caption=text, on_release=tap_on_item, source=icon_src
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)
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if len(self._gl_content.children) % 3 == 0:
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self._gl_content.height += dp(96)
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self.sheet_list.ids.box_sheet_list.add_widget(item)
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