egui_hooks

React Hooks like API for egui

Status

• precise memory management (currently, directly uses the egui::Memory)
• use_state
• use_persistent_state
• use_memo
• use_cache (a thin wrapper of caches in egui::Memory)
• use_effect
• use_future (needs async runtime)

Usage

1. use_state

// You can reset the initial state by changing the dependency list.
let (count, set_count) = ui.use_state(0usize, ());
ui.label(format!("Count: {}", count));
if ui.button("Increment").clicked() {
    set_count(*count + 1);
}

2. use_memo

let (count, set_count) = ui.use_state(0usize, ());
let memo = ui.use_memo(
    || {
        println!("Calculating memoized value");
        count.pow(2)
    },
    (count.clone(),),
);
ui.label(format!("Count: {}", count));
ui.label(format!("Memo: {}", memo));
if ui.button("Increment").clicked() {
    set_count(*count + 1);
}