File size: 1,376 Bytes
86c91c8 | 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 | /// Per-frame damage tracking for partial redraw.
#[derive(Clone, Debug, Default, PartialEq)]
pub enum Damage {
#[default]
None,
Full,
Lines(Vec<LineDamage>),
Rects(Vec<RectDamage>),
}
#[derive(Clone, Copy, Debug, PartialEq, Eq)]
pub struct LineDamage {
pub row: usize,
pub start_col: usize,
pub end_col: usize,
}
#[derive(Clone, Copy, Debug, PartialEq, Eq)]
pub struct RectDamage {
pub x: u32,
pub y: u32,
pub w: u32,
pub h: u32,
}
impl Damage {
pub fn add_line(&mut self, row: usize, start_col: usize, end_col: usize) {
match self {
Damage::None => {
*self = Damage::Lines(vec![LineDamage { row, start_col, end_col }]);
}
Damage::Lines(lines) => {
lines.push(LineDamage { row, start_col, end_col });
}
_ => {}
}
}
pub fn add_rect(&mut self, x: u32, y: u32, w: u32, h: u32) {
match self {
Damage::None => {
*self = Damage::Rects(vec![RectDamage { x, y, w, h }]);
}
Damage::Rects(rects) => {
rects.push(RectDamage { x, y, w, h });
}
_ => {}
}
}
pub fn set_full(&mut self) {
*self = Damage::Full;
}
pub fn take(&mut self) -> Damage {
std::mem::take(self)
}
}
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