49 lines
1.5 KiB
Python
49 lines
1.5 KiB
Python
from textual.app import App, ComposeResult
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from textual.containers import HorizontalGroup, VerticalScroll
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from textual.widgets import Button, Digits, Footer, Header
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class TimeDisplay(Digits):
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"""A widget to display elapsed time."""
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class Stopwatch(HorizontalGroup):
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"""A stopwatch widget."""
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def on_button_pressed(self, event: Button.Pressed) -> None:
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"""Event handler called when a button is pressed."""
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if event.button.id == "start":
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self.add_class("started")
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elif event.button.id == "stop":
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self.remove_class("started")
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def compose(self) -> ComposeResult:
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"""Create child widgets of a stopwatch."""
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yield Button("Start", id="start", variant="success")
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yield Button("Stop", id="stop", variant="error")
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yield Button("Reset", id="reset")
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yield TimeDisplay("00:00:00.00")
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class StopwatchApp(App):
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"""A Textual app to manage stopwatches."""
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CSS_PATH = "stopwatch04.tcss"
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BINDINGS = [("d", "toggle_dark", "Toggle dark mode")]
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def compose(self) -> ComposeResult:
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"""Create child widgets for the app."""
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yield Header()
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yield Footer()
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yield VerticalScroll(Stopwatch(), Stopwatch(), Stopwatch())
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def action_toggle_dark(self) -> None:
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"""An action to toggle dark mode."""
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self.theme = (
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"textual-dark" if self.theme == "textual-light" else "textual-light"
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)
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if __name__ == "__main__":
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app = StopwatchApp()
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app.run()
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