rustyline/
layout.rs

1use std::cmp::Ordering;
2
3#[derive(Copy, Clone, Debug, Default, PartialEq, Eq)]
4pub struct Position {
5    pub col: usize, // The leftmost column is number 0.
6    pub row: usize, // The highest row is number 0.
7}
8
9impl PartialOrd for Position {
10    fn partial_cmp(&self, other: &Self) -> Option<Ordering> {
11        Some(self.cmp(other))
12    }
13}
14
15impl Ord for Position {
16    fn cmp(&self, other: &Self) -> Ordering {
17        match self.row.cmp(&other.row) {
18            Ordering::Equal => self.col.cmp(&other.col),
19            o => o,
20        }
21    }
22}
23
24#[derive(Debug, Default)]
25pub struct Layout {
26    /// Prompt Unicode/visible width and height
27    pub prompt_size: Position,
28    pub default_prompt: bool,
29    /// Cursor position (relative to the start of the prompt)
30    pub cursor: Position,
31    /// Number of rows used so far (from start of prompt to end of input)
32    pub end: Position,
33}