imgui-rs/imgui-examples/examples/progress_bar.rs

use imgui::*;

mod support;

fn main() {
    support::simple_init(file!(), move |run, ui| {
        let w = ui
            .window("Progress bar")
            .opened(run)
            .position([20.0, 20.0], Condition::Appearing)
            .size([700.0, 200.0], Condition::Appearing);
        w.build(|| {
            ui.text("This is a simple progress bar:");
            ProgressBar::new(0.5).build(ui);

            ui.separator();
            ui.text("This progress bar has a custom size:");
            ProgressBar::new(0.3).size([200.0, 50.0]).build(ui);

            ui.separator();
            ui.text("This progress bar uses overlay text:");
            ProgressBar::new(0.8).overlay_text("Lorem ipsum").build(ui);
        });
    });
}