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
|
use std::io::Write;
#[derive(Debug, Clone, Copy)]
pub enum Direction {
Up,
Down,
Left,
Right,
}
pub fn fmove_cursor(direction: Direction, n: usize, stdout: &mut dyn Write) -> std::io::Result<()> {
if n == 0 {
return Ok(());
}
let code = match direction {
Direction::Up => 'A',
Direction::Down => 'B',
Direction::Right => 'C',
Direction::Left => 'D',
};
write!(stdout, "\x1b[{n}{code}")
}
pub fn move_cursor(direction: Direction, n: usize) {
fmove_cursor(direction, n, &mut std::io::stdout()).unwrap()
}
pub fn save() {
std::io::stdout().lock().write_all(b"\x1b[s").unwrap();
}
pub fn restore() {
std::io::stdout().lock().write_all(b"\x1b[u").unwrap();
}
/// Represents a cursor position
#[derive(Debug, Clone, Copy)]
pub struct CursorPos {
pub row: usize,
pub col: usize,
}
|
