lv-tui 0.4.0

A reactive TUI framework for Rust
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44

use lv_tui::prelude::*;
use lv_tui::widgets::*;

struct App {
    content: Column,
}

impl App {
    fn new() -> Self {
        Self {
            content: Column::new()
                .child(Label::new("下载进度").style(Style::default().bold()))
                .child(Label::new(""))
                .child(ProgressBar::new().ratio(0.0).width(30).label(true))
                .child(ProgressBar::new().ratio(0.25).width(30).label(true))
                .child(ProgressBar::new().ratio(0.5).width(30).label(true))
                .child(ProgressBar::new().ratio(0.75).width(30).label(true))
                .child(ProgressBar::new().ratio(1.0).width(30).label(true)
                    .style(Style::default().fg(Color::Green)))
                .child(Label::new(""))
                .child(Label::new("q 退出").style(Style::default().fg(Color::Gray))),
        }
    }
}

impl Component for App {
    fn render(&self, cx: &mut RenderCx) { self.content.render(cx); }
    fn event(&mut self, e: &Event, cx: &mut EventCx) {
        if e.is_key(Key::Char('q')) { cx.quit(); }
        if let Event::Key(k) = e {
            if k.key == Key::Char('c') && k.modifiers.ctrl { cx.quit(); return; }
        }
        self.content.event(e, cx);
    }
    fn layout(&mut self, r: lv_tui::geom::Rect, cx: &mut lv_tui::component::LayoutCx) { self.content.layout(r, cx); }
    fn measure(&self, c: lv_tui::layout::Constraint, _cx: &mut lv_tui::component::MeasureCx) -> lv_tui::geom::Size {
        lv_tui::geom::Size { width: c.max.width, height: c.max.height }
    }
    fn focusable(&self) -> bool { false }
}

fn main() -> lv_tui::Result<()> {
    lv_tui::app::App::new(App::new()).run()
}