venv added, updated

myenv/lib/python3.12/site-packages/reactivex/scheduler/mainloop/qtscheduler.py

@@ -0,0 +1,143 @@
+import logging
+from datetime import timedelta
+from typing import Any, Optional, Set, TypeVar
+
+from reactivex import abc, typing
+from reactivex.disposable import (
+    CompositeDisposable,
+    Disposable,
+    SingleAssignmentDisposable,
+)
+
+from ..periodicscheduler import PeriodicScheduler
+
+_TState = TypeVar("_TState")
+
+log = logging.getLogger(__name__)
+
+
+class QtScheduler(PeriodicScheduler):
+    """A scheduler for a PyQt5/PySide2 event loop."""
+
+    def __init__(self, qtcore: Any):
+        """Create a new QtScheduler.
+
+        Args:
+            qtcore: The QtCore instance to use; typically you would get this by
+                either import PyQt5.QtCore or import PySide2.QtCore
+        """
+        super().__init__()
+        self._qtcore = qtcore
+        self._periodic_timers: Set[Any] = set()
+
+    def schedule(
+        self, action: typing.ScheduledAction[_TState], state: Optional[_TState] = None
+    ) -> abc.DisposableBase:
+        """Schedules an action to be executed.
+
+        Args:
+            action: Action to be executed.
+            state: [Optional] state to be given to the action function.
+
+        Returns:
+            The disposable object used to cancel the scheduled action
+            (best effort).
+        """
+        return self.schedule_relative(0.0, action, state=state)
+
+    def schedule_relative(
+        self,
+        duetime: typing.RelativeTime,
+        action: typing.ScheduledAction[_TState],
+        state: Optional[_TState] = None,
+    ) -> abc.DisposableBase:
+        """Schedules an action to be executed after duetime.
+
+        Args:
+            duetime: Relative time after which to execute the action.
+            action: Action to be executed.
+            state: [Optional] state to be given to the action function.
+
+        Returns:
+            The disposable object used to cancel the scheduled action
+            (best effort).
+        """
+        msecs = max(0, int(self.to_seconds(duetime) * 1000.0))
+        sad = SingleAssignmentDisposable()
+        is_disposed = False
+
+        def invoke_action() -> None:
+            if not is_disposed:
+                sad.disposable = action(self, state)
+
+        log.debug("relative timeout: %sms", msecs)
+
+        # Use static method, let Qt C++ handle QTimer lifetime
+        self._qtcore.QTimer.singleShot(msecs, invoke_action)
+
+        def dispose() -> None:
+            nonlocal is_disposed
+            is_disposed = True
+
+        return CompositeDisposable(sad, Disposable(dispose))
+
+    def schedule_absolute(
+        self,
+        duetime: typing.AbsoluteTime,
+        action: typing.ScheduledAction[_TState],
+        state: Optional[_TState] = None,
+    ) -> abc.DisposableBase:
+        """Schedules an action to be executed at duetime.
+
+        Args:
+            duetime: Absolute time at which to execute the action.
+            action: Action to be executed.
+            state: [Optional] state to be given to the action function.
+
+        Returns:
+            The disposable object used to cancel the scheduled action
+            (best effort).
+        """
+
+        delta: timedelta = self.to_datetime(duetime) - self.now
+        return self.schedule_relative(delta, action, state=state)
+
+    def schedule_periodic(
+        self,
+        period: typing.RelativeTime,
+        action: typing.ScheduledPeriodicAction[_TState],
+        state: Optional[_TState] = None,
+    ) -> abc.DisposableBase:
+        """Schedules a periodic piece of work to be executed in the loop.
+
+        Args:
+             period: Period in seconds for running the work repeatedly.
+             action: Action to be executed.
+             state: [Optional] state to be given to the action function.
+
+         Returns:
+             The disposable object used to cancel the scheduled action
+             (best effort).
+        """
+        msecs = max(0, int(self.to_seconds(period) * 1000.0))
+        sad = SingleAssignmentDisposable()
+
+        def interval() -> None:
+            nonlocal state
+            state = action(state)
+
+        log.debug("periodic timeout: %sms", msecs)
+
+        timer = self._qtcore.QTimer()
+        timer.setSingleShot(not period)
+        timer.timeout.connect(interval)
+        timer.setInterval(msecs)
+        self._periodic_timers.add(timer)
+        timer.start()
+
+        def dispose() -> None:
+            timer.stop()
+            self._periodic_timers.remove(timer)
+            timer.deleteLater()
+
+        return CompositeDisposable(sad, Disposable(dispose))