fl2rust

Usage

A fluid (fltk ui designer) file to Rust transpiler.

As an executable

You can run fl2rust on the command-line by installing using cargo-install: $ cargo install fl2rust Then run: $ fl2rust <fl file>.fl > <output file>.rs

As a library

(A template repo usable via cargo-generate can be found here)

To automate things through cargo, you can use fl2rust as a library by adding it to your build-dependencies:

```toml

Cargo.toml

[dependencies] fltk = "0.14"

[build-dependencies] fl2rust = "0.3" ```

rust // build.rs fn main() { use std::path::PathBuf; use std::env; println!("cargo:rerun-if-changed=src/myuifile.fl"); let g = fl2rust::Generator::default(); let out_path = PathBuf::from(env::var("OUT_DIR").unwrap()); g.in_out("src/myuifile.fl", out_path.join("myuifile.rs").to_str().unwrap()).expect("Failed to generate rust from fl file!"); }

```

src/myuifile.fl -> generated via fluid

data file for the Fltk User Interface Designer (fluid)

version 1.0400 headername {.h} codename {.cxx} class UserInterface {open } { Function {makewindow()} {open } { FlWindow {} {open selected xywh {138 161 440 355} type Double visible } { Fl_Button but { label {Click me} xywh {175 230 95 45} } } } } ```

```rust // src/myuifile.rs

![allow(unused_variables)]

![allow(unused_mut)]

![allow(unused_imports)]

include!(concat!(env!("OUT_DIR"), "/myuifile.rs")); ```

```rust // src/main.rs use fltk::*; mod myuifile;

fn main() { let app = app::App::default(); let mut ui = myuifile::UserInterface::makewindow(); ui.but.setcallback(move || { println!("Works!"); }); app.run().unwrap(); } ```

Known limitations

• Adding arbitrary code or declaring global/member variables is unsupported.
• Only constructor methods are supported.
• fl2rust doesn't check the generated Rust code for correctness.
• Supports fltk-rs > 0.13.

Tutorial

• Use FLUID (RAD tool) with Rust