| from textual.app import App, ComposeResult | |
| from textual.containers import Container | |
| from textual.widgets import Button, Header, Footer, Static | |
| class TimeDisplay(Static): | |
| """A widget to display elapsed time.""" | |
| class Stopwatch(Static): | |
| """A stopwatch widget.""" | |
| def compose(self) -> ComposeResult: | |
| """Create child widgets of a stopwatch.""" | |
| yield Button("Start", id="start", variant="success") | |
| yield Button("Stop", id="stop", variant="error") | |
| yield Button("Reset", id="reset") | |
| yield TimeDisplay("00:00:00.00") | |
| class StopwatchApp(App): | |
| """A Textual app to manage stopwatches.""" | |
| CSS_PATH = "stopwatch03.css" | |
| BINDINGS = [("d", "toggle_dark", "Toggle dark mode")] | |
| def compose(self) -> ComposeResult: | |
| """Create child widgets for the app.""" | |
| yield Header() | |
| yield Footer() | |
| yield Container(Stopwatch(), Stopwatch(), Stopwatch()) | |
| def action_toggle_dark(self) -> None: | |
| """An action to toggle dark mode.""" | |
| self.dark = not self.dark | |
| if __name__ == "__main__": | |
| app = StopwatchApp() | |
| app.run() | |