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148 lines
4.1 KiB
Python
148 lines
4.1 KiB
Python
"""
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Themes/Material App
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===================
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This module contains :class:`MDApp` class that is inherited from
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:class:`~kivy.app.App`. :class:`MDApp` has some properties needed for ``KivyMD``
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library (like :attr:`~MDApp.theme_cls`). You can turn on the monitor displaying
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the current ``FPS`` value in your application:
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.. code-block:: python
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KV = '''
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MDScreen:
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MDLabel:
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text: "Hello, World!"
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halign: "center"
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'''
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from kivy.lang import Builder
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from kivymd.app import MDApp
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class MainApp(MDApp):
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def build(self):
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return Builder.load_string(KV)
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def on_start(self):
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self.fps_monitor_start()
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MainApp().run()
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.. image:: https://github.com/HeaTTheatR/KivyMD-data/raw/master/gallery/kivymddoc/fps-monitor.png
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:width: 350 px
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:align: center
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"""
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__all__ = ("MDApp",)
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import os
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from kivy.app import App
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from kivy.clock import Clock
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from kivy.lang import Builder
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from kivy.logger import Logger
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from kivy.properties import ObjectProperty, StringProperty
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from kivymd.theming import ThemeManager
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class FpsMonitoring:
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"""Implements a monitor to display the current FPS in the toolbar."""
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def fps_monitor_start(self) -> None:
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"""Adds a monitor to the main application window."""
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def add_monitor(*args):
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from kivy.core.window import Window
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from kivymd.utils.fpsmonitor import FpsMonitor
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monitor = FpsMonitor()
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monitor.start()
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Window.add_widget(monitor)
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Clock.schedule_once(add_monitor)
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class MDApp(App, FpsMonitoring):
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"""
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Application class, see :class:`~kivy.app.App` class documentation for more
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information.
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"""
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icon = StringProperty("kivymd/images/logo/kivymd-icon-512.png")
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"""
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See :attr:`~kivy.app.App.icon` attribute for more information.
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.. versionadded:: 1.1.0
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:attr:`icon` is an :class:`~kivy.properties.StringProperty`
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adn default to `kivymd/images/logo/kivymd-icon-512.png`.
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"""
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theme_cls = ObjectProperty()
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"""
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Instance of :class:`~ThemeManager` class.
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.. Warning:: The :attr:`~theme_cls` attribute is already available
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in a class that is inherited from the :class:`~MDApp` class.
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The following code will result in an error!
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.. code-block:: python
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class MainApp(MDApp):
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theme_cls = ThemeManager()
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theme_cls.primary_palette = "Teal"
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.. Note:: Correctly do as shown below!
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.. code-block:: python
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class MainApp(MDApp):
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def build(self):
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self.theme_cls.primary_palette = "Teal"
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:attr:`theme_cls` is an :class:`~kivy.properties.ObjectProperty`.
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"""
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def __init__(self, **kwargs):
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super().__init__(**kwargs)
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self.theme_cls = ThemeManager()
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def load_all_kv_files(self, path_to_directory: str) -> None:
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"""
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Recursively loads KV files from the selected directory.
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.. versionadded:: 1.0.0
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"""
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for path_to_dir, dirs, files in os.walk(path_to_directory):
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# When using the `load_all_kv_files` method, all KV files
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# from the `KivyMD` library were loaded twice, which leads to
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# failures when using application built using `PyInstaller`.
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if "kivymd" in path_to_directory:
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Logger.critical(
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"KivyMD: "
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"Do not use the word 'kivymd' in the name of the directory "
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"from where you download KV files"
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)
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if (
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"venv" in path_to_dir
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or ".buildozer" in path_to_dir
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or os.path.join("kivymd") in path_to_dir
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):
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continue
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for name_file in files:
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if (
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os.path.splitext(name_file)[1] == ".kv"
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and name_file != "style.kv" # if use PyInstaller
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and "__MACOS" not in path_to_dir # if use Mac OS
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):
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path_to_kv_file = os.path.join(path_to_dir, name_file)
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Builder.load_file(path_to_kv_file)
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