vendor/prodash/src/render/tui/draw/information.rs

   1 use tui::{
   2     buffer::Buffer,
   3     layout::Rect,
   4     style::{Modifier, Style},
   5     text::Span,
   6     widgets::{Block, Borders, Widget},
   7 };
   8
   9 use crate::render::tui::{
  10     utils::{block_width, draw_text_with_ellipsis_nowrap, rect},
  11     Line,
  12 };
  13
  14 pub fn pane(lines: &[Line], bound: Rect, buf: &mut Buffer) {
  15     let bold = Style::default().add_modifier(Modifier::BOLD);
  16     let block = Block::default()
  17         .title(Span::styled("Information", bold))
  18         .borders(Borders::TOP | Borders::BOTTOM);
  19     let inner_bound = block.inner(bound);
  20     block.render(bound, buf);
  21
  22     let help_text = " ⨯ = [ | ▢ = { ";
  23     draw_text_with_ellipsis_nowrap(rect::snap_to_right(bound, block_width(help_text)), buf, help_text, bold);
  24
  25     let bound = Rect {
  26         width: inner_bound.width.saturating_sub(1),
  27         ..inner_bound
  28     };
  29     let mut offset = 0;
  30     for (line, info) in lines.windows(2).enumerate() {
  31         let (info, next_info) = (&info[0], &info[1]);
  32         let line = line + offset;
  33         if line >= bound.height as usize {
  34             break;
  35         }
  36         let line_bound = rect::line_bound(bound, line);
  37         match info {
  38             Line::Title(text) => {
  39                 let blocks_drawn = draw_text_with_ellipsis_nowrap(line_bound, buf, text, bold);
  40                 let lines_rect = rect::offset_x(line_bound, blocks_drawn + 1);
  41                 for x in lines_rect.left()..lines_rect.right() {
  42                     buf.get_mut(x, lines_rect.y).symbol = "─".into();
  43                 }
  44                 offset += 1;
  45             }
  46             Line::Text(text) => {
  47                 draw_text_with_ellipsis_nowrap(rect::offset_x(line_bound, 1), buf, text, None);
  48             }
  49         };
  50         if let Line::Title(_) = next_info {
  51             offset += 1;
  52         }
  53     }
  54
  55     if let Some(Line::Text(text)) = lines.last() {
  56         let line = lines.len().saturating_sub(1) + offset;
  57         if line < bound.height as usize {
  58             draw_text_with_ellipsis_nowrap(rect::offset_x(rect::line_bound(bound, line), 1), buf, text, bold);
  59         }
  60     }
  61 }