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48 lines
1.5 KiB
Python
48 lines
1.5 KiB
Python
from textual.app import App, ComposeResult
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from textual.containers import Center, Middle
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from textual.timer import Timer
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from textual.widgets import Footer, ProgressBar
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class StyledProgressBar(App[None]):
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BINDINGS = [("s", "start", "Start")]
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CSS_PATH = "progress_bar_styled.tcss"
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progress_timer: Timer
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"""Timer to simulate progress happening."""
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def compose(self) -> ComposeResult:
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with Center():
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with Middle():
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yield ProgressBar()
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yield Footer()
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def on_mount(self) -> None:
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"""Set up a timer to simulate progess happening."""
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self.progress_timer = self.set_interval(1 / 10, self.make_progress, pause=True)
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def make_progress(self) -> None:
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"""Called automatically to advance the progress bar."""
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self.query_one(ProgressBar).advance(1)
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def action_start(self) -> None:
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"""Start the progress tracking."""
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self.query_one(ProgressBar).update(total=100)
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self.progress_timer.resume()
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def key_f(self) -> None:
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# Freeze time for the indeterminate progress bar.
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self.query_one(ProgressBar).query_one("#bar")._get_elapsed_time = lambda: 5
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def key_t(self) -> None:
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# Freeze time to show always the same ETA.
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self.query_one(ProgressBar).query_one("#eta")._get_elapsed_time = lambda: 3.9
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self.query_one(ProgressBar).update(total=100, progress=39)
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def key_u(self) -> None:
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self.query_one(ProgressBar).update(total=100, progress=100)
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if __name__ == "__main__":
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StyledProgressBar().run()
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