1 use crate::compositor::{Component, Context};
2 use helix_view::graphics::{Margin, Rect};
3 use helix_view::info::Info;
4 use tui::buffer::Buffer as Surface;
5 use tui::widgets::{Block, Borders, Paragraph, Widget};
6 
7 impl Component for Info {
render(&mut self, viewport: Rect, surface: &mut Surface, cx: &mut Context)8     fn render(&mut self, viewport: Rect, surface: &mut Surface, cx: &mut Context) {
9         let get_theme = |style, fallback| {
10             let theme = &cx.editor.theme;
11             theme.try_get(style).unwrap_or_else(|| theme.get(fallback))
12         };
13         let text_style = get_theme("ui.info.text", "ui.text");
14         let popup_style = text_style.patch(get_theme("ui.info", "ui.popup"));
15 
16         // Calculate the area of the terminal to modify. Because we want to
17         // render at the bottom right, we use the viewport's width and height
18         // which evaluate to the most bottom right coordinate.
19         let width = self.width + 2 + 2; // +2 for border, +2 for margin
20         let height = self.height + 2; // +2 for border
21         let area = viewport.intersection(Rect::new(
22             viewport.width.saturating_sub(width),
23             viewport.height.saturating_sub(height + 2), // +2 for statusline
24             width,
25             height,
26         ));
27         surface.clear_with(area, popup_style);
28 
29         let block = Block::default()
30             .title(self.title.as_str())
31             .borders(Borders::ALL)
32             .border_style(popup_style);
33 
34         let margin = Margin {
35             vertical: 0,
36             horizontal: 1,
37         };
38         let inner = block.inner(area).inner(&margin);
39         block.render(area, surface);
40 
41         Paragraph::new(self.text.as_str())
42             .style(text_style)
43             .render(inner, surface);
44     }
45 }
46