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49 lines
1.3 KiB
Rust
49 lines
1.3 KiB
Rust
use crate::input::KeyEvent;
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use helix_core::unicode::width::UnicodeWidthStr;
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use std::{collections::BTreeSet, fmt::Write};
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#[derive(Debug)]
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/// Info box used in editor. Rendering logic will be in other crate.
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pub struct Info {
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/// Title shown at top.
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pub title: String,
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/// Text body, should contain newlines.
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pub text: String,
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/// Body width.
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pub width: u16,
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/// Body height.
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pub height: u16,
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}
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impl Info {
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pub fn new(title: &str, body: Vec<(&str, BTreeSet<KeyEvent>)>) -> Info {
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let body = body
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.into_iter()
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.map(|(desc, events)| {
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let events = events.iter().map(ToString::to_string).collect::<Vec<_>>();
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(desc, events.join(", "))
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})
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.collect::<Vec<_>>();
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let keymaps_width = body.iter().map(|r| r.1.len()).max().unwrap();
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let mut text = String::new();
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for (desc, keyevents) in &body {
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let _ = writeln!(
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text,
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"{:width$} {}",
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keyevents,
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desc,
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width = keymaps_width
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);
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}
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Info {
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title: title.to_string(),
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width: text.lines().map(|l| l.width()).max().unwrap() as u16,
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height: body.len() as u16,
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text,
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}
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}
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}
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