Crate cpux 

cpux is a retained-mode GUI framework. It is meant to be simple to use and lightweight, using very little CPU when idle.

Example

It might seem a bit complex, but the crate is quite well documented

use cpux::app::{App, AppContext};
use cpux::button::Button;
use cpux::layouts::Column;
use cpux::text::Text;
use cpux::load_font;
 
fn main() {
    let font = load_font("assets/arial.ttf");
 
    let mut app = App::new("cpux counter example", 600, 400);
    let mut counter = 0;
 
    let text1 = Text::new("Hello, GUI!", font.clone()).with_size(32.0);
    let text2 = Text::new("Count: 0", font.clone())
        .with_id("counter_text");
    let button = Button::new("Click Me", font.clone())
        .with_id("add_button");
 
 
    let column = Column::new()
        .at(50, 50)
        .with_spacing(25)
        .add(text1)
        .add(text2)
        .add(button);
 
    app.set_root(column);
 
    app.run(move |ui: &mut AppContext| {
        if ui.was_clicked("add_button") {
            counter += 1;
            if let Some(text_widget) = ui.find_widget_mut::<Text>("counter_text") {
                text_widget.content = format!("Count: {}", counter);
            }
       }
    });
}

Modules

app

Core of the GUI framework

button

A simple button widget

layouts

Contains the Row and Column layout containers, which are used to arrange child widgets in a horizontal or vertical line, respectively.

text

A simple text label widget for displaying text on the screen.

widget

Core widget trait, implemented by layouts and widgets.

Functions

load_font

Helper utility to load raw TrueType Font (.ttf) files into vector memory.