revue 2.31.2

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<img src="assets/banner.svg" alt="Revue" width="480">

**/rɪˈvjuː/** — *Re + Vue* — A Vue-style TUI framework for Rust

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[Quick Start](#quick-start) · [Examples](examples/) · [Documentation](https://docs.rs/revue) · [Contributing](CONTRIBUTING.md)

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<br>

## Why Revue?

> Build terminal UIs like you build web apps — with **CSS** and **reactive state**.

- **CSS Styling** — Write styles in familiar CSS syntax with variables, selectors, and animations
- **Reactive State** — Vue-inspired `Signal`/`Computed`/`Effect` system for automatic UI updates
- **100+ Widgets** — Rich component library: inputs, tables, charts, markdown, images, and more
- **Hot Reload** — See CSS changes instantly without restarting your app
- **Developer Tools** — Widget inspector, snapshot testing, and performance profiler built-in
- **Single Binary** — Pure Rust, no runtime dependencies, blazing fast

<br>

## Quick Start

```bash
cargo add revue
```

```rust
use revue::prelude::*;

fn main() -> Result<()> {
    let mut app = App::builder()
        .style("styles.css")
        .build();

    let counter = Counter::new();
    app.run(counter, |event, counter, _app| {
        if let Event::Key(key) = event {
            counter.handle_key(&key.key)
        } else {
            false
        }
    })
}

struct Counter {
    count: Signal<i32>,
}

impl Counter {
    fn new() -> Self {
        Self { count: signal(0) }
    }

    fn handle_key(&mut self, key: &Key) -> bool {
        match key {
            Key::Up => { self.count.update(|n| *n += 1); true }
            Key::Down => { self.count.update(|n| *n -= 1); true }
            _ => false,
        }
    }
}

impl View for Counter {
    fn render(&self, ctx: &mut RenderContext) {
        let count = self.count.get();
        vstack()
            .class("container")
            .child(Text::new(format!("Count: {}", count)).bold())
            .child(
                hstack().gap(1)
                    .child(Text::new("↑/↓ to change, q to quit"))
            )
            .render(ctx);
    }
}
```

```css
/* styles.css */
.container {
    padding: 2;
    gap: 1;
    border: rounded cyan;
    align-items: center;
}

button {
    padding: 0 2;
    background: var(--primary);
}

button:hover {
    background: var(--primary-dark);
}
```

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## Widgets

| Category | Components |
|:---------|:-----------|
| **Layout** | `vstack` `hstack` `grid` `scroll` `tabs` `accordion` `splitter` |
| **Input** | `input` `textarea` `select` `checkbox` `radio` `switch` `slider` |
| **Display** | `text` `markdown` `table` `tree` `list` `progress` `badge` `image` `presentation` |
| **Feedback** | `modal` `toast` `notification` `tooltip` `popover` |
| **Charts** | `barchart` `line_chart` `sparkline` `heatmap` `gauge` |

<br>

## Examples

```bash
cargo run --example counter      # Basic counter
cargo run --example todo         # Todo app
cargo run --example dashboard    # Charts & widgets
cargo run --example slideshow    # Slidev-style presentations
```

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## Comparison

| | Revue | Ratatui | Cursive | Textual |
|:--|:--:|:--:|:--:|:--:|
| **Language** | Rust | Rust | Rust | Python |
| **Styling** | CSS | Code | Theme | CSS |
| **Reactivity** | Signal | Manual | Event | Reactive |
| **Hot Reload** | ✅ | ❌ | ❌ | ✅ |
| **Devtools** | ✅ | ❌ | ❌ | ✅ |

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## Documentation

- [API Reference](https://docs.rs/revue) — Full API documentation
- [Styling Guide](docs/guides/styling.md) — CSS properties and theming
- [Features](docs/FEATURES.md) — Widget catalog and capabilities
- [Architecture](docs/ARCHITECTURE.md) — System design

<br>

## Contributing

We welcome contributions! See [CONTRIBUTING.md](CONTRIBUTING.md) for guidelines.

```bash
git clone https://github.com/hawk90/revue.git
cd revue && cargo test
```

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## License

MIT License — see [LICENSE](LICENSE) for details.

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**[↑ Back to Top](#why-revue)**

<sub>Built with Rust</sub>

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