Build something with libLuna.

Four paths

You do not have to read everything in order. Pick what you need right now — every page ends with a link to the next step.

The smallest working program

This is enough to open a window, paint the background and draw text. Everything else is an extension of the same contract.

use libluna::prelude::*;

fn main() -> Result<(), Box<dyn std::error::Error>> {
    let config = AppConfig::new("My app").initial_size(800, 600);

    run(config, |frame: &mut Frame| {
        let theme = frame.theme;
        let (w, h) = (frame.size.width, frame.size.height);

        frame.scene.fill_rect(
            Rect::from_xywh(0.0, 0.0, w, h),
            theme.colors.window_bg,
        );
        frame.scene.text(
            TextRun::new(Point::new(24.0, 64.0), "Hello, Luna", 24.0)
                .with_color(theme.colors.text)
                .with_weight(700),
        );
    })
}

Full example with event handling: Quick start → first event.

What is what

The libluna facade bundles six crates into one entry point. Applications almost always use only the facade and its prelude.

Dependencies only point downwards: widgets do not know how DRM works, and the platform does not know how a button is painted. Details: Architecture.

Status today