59 lines
1.7 KiB
Python
59 lines
1.7 KiB
Python
import logging
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import threading
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import time
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import tkinter as tk
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from typing import TYPE_CHECKING, Any, Callable, Optional, Tuple
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logger = logging.getLogger(__name__)
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if TYPE_CHECKING:
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from core.gui.app import Application
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class ProgressTask:
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def __init__(
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self,
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app: "Application",
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title: str,
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task: Callable,
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callback: Callable = None,
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args: Tuple[Any] = None,
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):
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self.app: "Application" = app
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self.title: str = title
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self.task: Callable = task
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self.callback: Callable = callback
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if args is None:
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args = ()
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self.args: Tuple[Any] = args
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self.time: Optional[float] = None
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def start(self) -> None:
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self.app.progress.grid(sticky=tk.EW, columnspan=2)
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self.app.progress.start()
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self.time = time.perf_counter()
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thread = threading.Thread(target=self.run, daemon=True)
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thread.start()
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def run(self) -> None:
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try:
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values = self.task(*self.args)
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if values is None:
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values = ()
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elif values is not None and not isinstance(values, tuple):
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values = (values,)
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if self.callback:
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self.app.after(0, self.callback, *values)
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except Exception as e:
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logger.exception("progress task exception")
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self.app.show_exception("Task Error", e)
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finally:
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self.app.after(0, self.complete)
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def complete(self) -> None:
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self.app.progress.stop()
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self.app.progress.grid_forget()
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total = time.perf_counter() - self.time
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self.time = None
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message = f"{self.title} ran for {total:.3f} seconds"
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self.app.statusbar.set_status(message)
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