Horizon Lattice

A Rust-native GUI framework inspired by Qt's comprehensive design philosophy.

Overview

Horizon Lattice brings Qt's proven concepts—signals/slots, declarative UI, comprehensive widget set, and cross-platform support—to Rust, implemented idiomatically using Rust's ownership model and type system.

Key Features

• Type-safe signals and slots - Compile-time checked connections, no runtime type errors
• Procedural macro-based meta-object system - No external code generation tools required
• Modern graphics backend - GPU-accelerated rendering via wgpu (Vulkan, Metal, DX12)
• Comprehensive widget library - Buttons, text inputs, lists, tables, trees, dialogs, and more
• CSS-like styling - Flexible theming with hot-reload support during development
• Cross-platform - Linux, Windows, and macOS from a single codebase
• Pure Rust - No C++ dependencies, fully memory-safe

Installation

Add Horizon Lattice to your Cargo.toml:

[dependencies]
horizon-lattice = "1.0"

Optional Features

[dependencies]
horizon-lattice = { version = "1.0", features = ["networking", "multimedia"] }

Quick Start

use horizon_lattice::prelude::*;

fn main() {
    let app = Application::new();

    let window = MainWindow::new();
    window.set_title("Hello, Horizon Lattice!");
    window.resize(400, 300);

    let button = PushButton::new("Click me!");
    button.on_clicked(|| {
        println!("Button clicked!");
    });

    let layout = VBoxLayout::new();
    layout.add_widget(&button);
    window.set_layout(&layout);

    window.show();
    app.exec();
}

Documentation

• API Documentation
• User Guide
• Examples

Crate Structure

Horizon Lattice is organized as a workspace of specialized crates:

Platform Support

Minimum Supported Rust Version

Horizon Lattice requires Rust 1.85.0 or later (Edition 2024).

Contributing

See CONTRIBUTING.md for development workflow and release process.

License

Licensed under either of:

• Apache License, Version 2.0 (LICENSE-APACHE or http://www.apache.org/licenses/LICENSE-2.0)
• MIT license (LICENSE-MIT or http://opensource.org/licenses/MIT)

at your option.

Acknowledgments

Horizon Lattice is developed by Horizon Analytic Studios, LLC.

This project draws inspiration from Qt's design philosophy while reimagining its concepts for Rust's unique strengths.