70 lines
1.9 KiB
Python
70 lines
1.9 KiB
Python
# load symbol from:
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# https://stackoverflow.com/questions/22029562/python-how-to-make-simple-animated-loading-while-process-is-running
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from __future__ import annotations
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from itertools import cycle
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from shutil import get_terminal_size
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from sys import platform
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from threading import Thread
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from time import sleep
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from zotify.logger import Logger
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class Loader:
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"""
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Busy symbol.
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Can be called inside a context:
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with Loader("This take some Time..."):
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# do something
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pass
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"""
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def __init__(self, desc="Loading...", end="", timeout=0.1, mode="std3") -> None:
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"""
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A loader-like context manager
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Args:
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desc (str, optional): The loader's description. Defaults to "Loading...".
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end (str, optional): Final print. Defaults to "".
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timeout (float, optional): Sleep time between prints. Defaults to 0.1.
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"""
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self.desc = desc
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self.end = end
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self.timeout = timeout
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self.__thread = Thread(target=self.__animate, daemon=True)
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if platform == "win32":
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self.steps = ["/", "-", "\\", "|"]
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else:
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self.steps = ["⣾", "⣽", "⣻", "⢿", "⡿", "⣟", "⣯", "⣷"]
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self.done = False
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def start(self) -> Loader:
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self.__thread.start()
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return self
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def __animate(self) -> None:
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for c in cycle(self.steps):
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if self.done:
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break
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Logger.print_loader(f"\r {c} {self.desc} ")
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sleep(self.timeout)
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def __enter__(self) -> None:
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self.start()
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def stop(self) -> None:
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self.done = True
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cols = get_terminal_size((80, 20)).columns
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Logger.print_loader("\r" + " " * cols)
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if self.end != "":
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Logger.print_loader(f"\r{self.end}")
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def __exit__(self, exc_type, exc_value, tb) -> None:
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# handle exceptions with those variables ^
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self.stop()
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