lsv 0.1.15

Three‑pane terminal file viewer (TUI) with preview and Lua configuration
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
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75

use ratatui::{
    layout::{
        Constraint,
        Direction,
        Layout,
        Rect,
    },
    style::{
        Color,
        Modifier,
        Style,
    },
    text::Span,
    widgets::{
        Block,
        Borders,
        Clear,
        Paragraph,
        Wrap,
    },
};

pub fn draw_output_panel(
    f: &mut ratatui::Frame,
    area: Rect,
    app: &crate::App,
)
{
    let (title, lines): (String, Vec<String>) = match app.overlay.clone()
    {
        crate::app::Overlay::Output { title, lines } => (title, lines),
        _ => (String::new(), Vec::new()),
    };
    let min_h = ((area.height as u32 * 20) / 100).max(3) as u16;
    let max_h = ((area.height as u32 * 60) / 100).max(min_h as u32) as u16;
    let needed = (lines.len() as u16).saturating_add(2).max(3);
    let panel_h = needed.min(max_h).max(min_h).min(area.height);

    let mut block = Block::default().borders(Borders::ALL).title(Span::styled(
        title,
        Style::default().fg(Color::Yellow).add_modifier(Modifier::BOLD),
    ));
    if let Some(th) = app.config.ui.theme.as_ref()
    {
        if let Some(bg) =
            th.pane_bg.as_ref().and_then(|s| crate::ui::colors::parse_color(s))
        {
            block = block.style(Style::default().bg(bg));
        }
        if let Some(bfg) = th
            .border_fg
            .as_ref()
            .and_then(|s| crate::ui::colors::parse_color(s))
        {
            block = block.border_style(Style::default().fg(bfg));
        }
    }
    let layout = Layout::default()
        .direction(Direction::Vertical)
        .constraints([Constraint::Min(0), Constraint::Length(panel_h)])
        .split(area);
    let panel = layout[1];
    f.render_widget(Clear, panel);

    let avail_rows = panel_h.saturating_sub(2) as usize;
    let start = lines.len().saturating_sub(avail_rows);
    let slice = &lines[start..];
    let mut lines: Vec<ratatui::text::Line> = Vec::new();
    for m in slice
    {
        lines.push(ratatui::text::Line::from(crate::ui::ansi::ansi_spans(m)));
    }
    let para = Paragraph::new(lines).block(block).wrap(Wrap { trim: true });
    f.render_widget(para, panel);
}