helix-term/src/ui/info.rs · helix

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1use crate::compositor::{Component, Context};

2use helix_view::graphics::{Margin, Rect};

3use helix_view::info::Info;

4use tui::buffer::Buffer as Surface;

5use tui::widgets::{Block, Borders, Paragraph, Widget};

7impl Component for Info {

8 fn render(&mut self, viewport: Rect, surface: &mut Surface, cx: &mut Context) {

9 let text_style = cx.editor.theme.get("ui.text.focus");

10 let popup_style = text_style.patch(cx.editor.theme.get("ui.popup"));

12 // Calculate the area of the terminal to modify. Because we want to

13 // render at the bottom right, we use the viewport's width and height

14 // which evaluate to the most bottom right coordinate.

15 let width = self.width + 2 + 2; // +2 for border, +2 for margin

16 let height = self.height + 2; // +2 for border

17 let area = viewport.intersection(Rect::new(

18 viewport.width.saturating_sub(width),

19 viewport.height.saturating_sub(height + 2), // +2 for statusline

20 width,

21 height,

22 ));

23 surface.clear_with(area, popup_style);

25 let block = Block::default()

26 .title(self.title.as_str())

27 .borders(Borders::ALL)

28 .border_style(popup_style);

30 let margin = Margin {

31 vertical: 0,

32 horizontal: 1,

33 };

34 let inner = block.inner(area).inner(&margin);

35 block.render(area, surface);

37 Paragraph::new(self.text.as_str())

38 .style(text_style)

39 .render(inner, surface);

40 }