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use helix_core::{register::Registers, unicode::width::UnicodeWidthStr};
use std::fmt::Write;
#[derive(Debug)]
/// Info box used in editor. Rendering logic will be in other crate.
pub struct Info {
/// Title shown at top.
pub title: String,
/// Text body, should contain newlines.
pub text: String,
/// Body width.
pub width: u16,
/// Body height.
pub height: u16,
}
impl Info {
pub fn new<T, U>(title: &str, body: &[(T, U)]) -> Self
where
T: AsRef<str>,
U: AsRef<str>,
{
if body.is_empty() {
return Self {
title: title.to_string(),
height: 1,
width: title.len() as u16,
text: "".to_string(),
};
}
let item_width = body
.iter()
.map(|(item, _)| item.as_ref().width())
.max()
.unwrap();
let mut text = String::new();
for (item, desc) in body {
let _ = writeln!(
text,
"{:width$} {}",
item.as_ref(),
desc.as_ref(),
width = item_width
);
}
Self {
title: title.to_string(),
width: text.lines().map(|l| l.width()).max().unwrap() as u16,
height: body.len() as u16,
text,
}
}
pub fn from_registers(registers: &Registers) -> Self {
let body: Vec<_> = registers
.inner()
.iter()
.map(|(ch, reg)| {
let content = reg
.read()
.get(0)
.and_then(|s| s.lines().next())
.unwrap_or_default();
(ch.to_string(), content)
})
.collect();
let mut infobox = Self::new("Registers", &body);
infobox.width = 30; // copied content could be very long
infobox
}
}
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