zng

Zng is a cross-platform GUI framework, it provides ready made highly customizable widgets, responsive layout, live data binding, easy localization, automatic focus navigation and accessibility, async and multi-threaded tasks, robust multi-process architecture and more.

Zng is pronounced "zing", or as an initialism: ZNG (Z Nesting Graphics).

Usage

First add zng to your Cargo.toml, or call cargo add zng -F view_prebuilt:

[dependencies]
zng = { version = "0.5.1", features = ["view_prebuilt"] }

Then create your first window:

use zng::prelude::*;

fn main() {
    zng::view_process::prebuilt::init();
    APP.defaults().run_window(async {
        let size = var(layout::Size::new(800, 600));
        Window! {
            title = size.map(|s| formatx!("Button Example - {s}"));
            size;
            child_align = Align::CENTER;
            child = Button! {
                on_click = hn!(|_| {
                    println!("Button clicked!");
                });
                text::font_size = 28;
                child = Text!("Click Me!");
            }
        }
    })
}

See the documentation for more details.

Crates

The zng crate is the only dependency you need to create apps, it re-exports the primary API of the other crates in well organized and documented modules.

The other crates provide the full API that you might need to implement more advanced features, for example, a custom property that modifies the behavior of a widget might need to reference the widget's internal state, this internal API will only be available in the widget's crate.

Cargo Features

The Cargo features of each crate are documented in the README file for that crate. See ./crates/zng for the Cargo features of the main crate.

Requirements

On Windows:

• To build with "view" and "view_software" feature:
  • Env vars CC and CXX must be set to "clang-cl".
  • You can install clang using the Visual Studio installer or by installing LLVM directly.

On Linux:

• Packages needed to build:

  • pkg-config
  • libfontconfig1-dev

• Packages needed to build with "http" feature:

  • libssl-dev

• Packages needed to build with "view_prebuilt" feature:

  • curl

On macOS:

• To build with "crash_handler" feature, enabled by default:
  • XCode 14 or newer.

Examples

Clone this repository and call cargo do run <example> to run an example.

See the ./examples README file for a list of examples with description and screenshots.

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.

Contribution

Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.