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85 lines
2.5 KiB
Python
85 lines
2.5 KiB
Python
from time import time
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from textual.app import App, ComposeResult
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from textual.layout import Container
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from textual.reactive import Reactive
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from textual.widgets import Button, Header, Footer, Static
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class TimeDisplay(Static):
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"""Displays the time."""
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time_delta = Reactive(0.0)
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def watch_time_delta(self, time_delta: float) -> None:
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minutes, seconds = divmod(time_delta, 60)
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hours, minutes = divmod(minutes, 60)
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self.update(f"{hours:02.0f}:{minutes:02.0f}:{seconds:02.2f}")
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class TimerWidget(Static):
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"""The timer widget (display + buttons)."""
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start_time = Reactive(0.0)
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total = Reactive(0.0)
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started = Reactive(False)
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def on_mount(self) -> None:
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self.update_timer = self.set_interval(1 / 30, self.update_elapsed, pause=True)
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def update_elapsed(self) -> None:
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time_delta = (
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self.total + time() - self.start_time if self.started else self.total
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)
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self.query_one(TimeDisplay).time_delta = time_delta
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def compose(self) -> ComposeResult:
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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 TimeDisplay()
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yield Button("Reset", id="reset")
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def watch_started(self, started: bool) -> None:
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if started:
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self.start_time = time()
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self.update_timer.resume()
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self.add_class("started")
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else:
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self.update_timer.pause()
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self.total += time() - self.start_time
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self.remove_class("started")
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def on_button_pressed(self, event: Button.Pressed) -> None:
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button_id = event.button.id
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self.started = button_id == "start"
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if button_id == "reset":
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self.started = False
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self.total = 0.0
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self.update_elapsed()
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class TimerApp(App):
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def on_load(self) -> None:
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self.bind("a", "add_timer", description="Add")
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self.bind("r", "remove_timer", description="Remove")
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def compose(self) -> ComposeResult:
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yield Header()
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yield Footer()
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yield Container(TimerWidget(), TimerWidget(), TimerWidget())
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def action_add_timer(self) -> None:
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new_timer = TimerWidget()
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self.query_one("Container").mount(new_timer)
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self.call_later(new_timer.scroll_visible)
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def action_remove_timer(self) -> None:
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timers = self.query("Container TimerWidget")
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if timers:
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timers.last().remove()
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app = TimerApp(css_path="timers.css")
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if __name__ == "__main__":
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app.run()
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