1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
|
use crate::input::KeyEvent;
use helix_core::{register::Registers, unicode::width::UnicodeWidthStr};
use std::{collections::BTreeSet, 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_keymap(title: &str, body: Vec<(&str, BTreeSet<KeyEvent>)>) -> Self {
let body: Vec<_> = body
.into_iter()
.map(|(desc, events)| {
let events = events.iter().map(ToString::to_string).collect::<Vec<_>>();
(events.join(", "), desc)
})
.collect();
Self::new(title, &body)
}
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
}
}
|
