chore: update to the latest version of headless-kivy which drops fps …

…control

CHANGELOG.md

@@ -4,6 +4,7 @@
 
 - chore: migrate from poetry to uv for the sake of improving performance and dealing with conflicting sub-dependencies
 - feat: add spinner widget which doesn't trigger whole screen renders and uses new local renders of headless-kivy
+- chore: update to the latest version of headless-kivy which drops fps control
 
 ## Version 0.13.3
 

ubo_gui/menu/_transitions.py

@@ -6,7 +6,6 @@
 from functools import cached_property
 from typing import Any, NotRequired, TypedDict
 
-from headless_kivy import HeadlessWidget
 from kivy.clock import mainthread
 from kivy.uix.screenmanager import (
     NoTransition,
@@ -17,7 +16,6 @@
     SwapTransition,
     TransitionBase,
 )
-from kivy.uix.widget import Widget
 
 
 class SwitchParameters(TypedDict):
@@ -80,10 +78,6 @@ def _handle_transition_complete(
                     **switch_parameters,
                 )
             else:
-                if isinstance(self, Widget):
-                    headless_widget = HeadlessWidget.get_instance(self)
-                    if headless_widget:
-                        headless_widget.activate_low_fps_mode()
                 self._is_transition_in_progress = False
 
     def _setup_transition(self: TransitionsMixin, transition: TransitionBase) -> None:
@@ -155,10 +149,6 @@ def _switch_to(
                     (screen, transition, direction, duration),
                 ]
             else:
-                if isinstance(self, Widget):
-                    headless_widget = HeadlessWidget.get_instance(self)
-                    if headless_widget:
-                        headless_widget.activate_high_fps_mode()
                 self._is_transition_in_progress = transition is not self._no_transition
                 self._is_preparation_in_progress = True
                 self._perform_switch(

ubo_gui/menu/menu_widget.py

@@ -15,7 +15,6 @@
 import warnings
 from typing import TYPE_CHECKING, cast, overload
 
-from headless_kivy import HeadlessWidget
 from kivy.clock import mainthread
 from kivy.lang.builder import Builder
 from kivy.properties import (
@@ -544,9 +543,6 @@ def set_current_screen(self: MenuWidget, screen: Screen) -> bool:
     def open_application(self: MenuWidget, application: PageWidget) -> None:
         """Open an application."""
         with self.stack_lock:
-            headless_widget = HeadlessWidget.get_instance(self)
-            if headless_widget:
-                headless_widget.activate_high_fps_mode()
             application.name = uuid.uuid4().hex
             application.padding_bottom = self.padding_bottom
             application.padding_top = self.padding_top

ubo_gui/spinner/__init__.py

@@ -2,47 +2,36 @@
 
 from __future__ import annotations
 
-import math
+import pathlib
 from typing import Any, cast
 
 from headless_kivy import HeadlessWidget
 from kivy.clock import Clock
-from kivy.graphics.context_instructions import Rotate
+from kivy.lang.builder import Builder
 from kivy.properties import NumericProperty
 from kivy.uix.label import Label
 
 
-class SpinnerWidget(HeadlessWidget):
+class SpinnerWidget(HeadlessWidget, Label):
     """Spinner widget for loading indication."""
 
     angle = NumericProperty(0)
 
     def __init__(self: SpinnerWidget, **kwargs: object) -> None:
         """Initialize the SpinnerWidget class."""
         super().__init__(**cast(Any, kwargs))
-        self.interval = Clock.schedule_interval(self.rotate_spinner, 1 / 40)
-        self.label = Label(
-            text='',
-            color=(1, 1, 1),
-        )
-        self.label.bind(texture_size=self.label.setter('size'))
-        self.bind(
-            size=lambda *_: self.label.setter('center')(
-                self.label,
-                (self.width / 2, self.height / 2),
-            ),
-        )
-        self.add_widget(self.label)
+        self.interval = Clock.schedule_interval(self.rotate_spinner, 1 / 60)
 
     def __del__(self: SpinnerWidget) -> None:
-        """Remove the spinner widget."""
+        """Cancel the interval when the widget is deleted."""
         self.interval.cancel()
 
     def rotate_spinner(self: SpinnerWidget, dt: float) -> None:
         """Rotate the spinner."""
-        self.angle = (self.angle + dt) % math.tau
-        with self.label.canvas.before:
-            Rotate(
-                angle=-dt * 400,
-                origin=self.label.center,
-            )
+        self.angle -= dt * 500
+        self.angle %= 360
+
+
+Builder.load_file(
+    pathlib.Path(__file__).parent.joinpath('spinner_widget.kv').resolve().as_posix(),
+)

ubo_gui/spinner/spinner_widget.kv

@@ -0,0 +1,16 @@
+#:kivy 2.3.0
+
+<SpinnerWidget>:
+  Label:
+    text: ''
+    size: print(root.size) or root.size
+
+    canvas.before:
+      PushMatrix
+
+      Rotate:
+        angle: root.angle
+        origin: self.center
+
+    canvas.after:
+      PopMatrix