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Clamp offscreen damage

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This could happen if the terminal is very small and cell is not entirely
visible, thus having bounds outside the terminal width/height.
This commit is contained in:
Kirill Chibisov 2025-03-23 19:44:43 +03:00 • committed by GitHub
parent 5a68e98db0
commit 15f1278d69
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GPG key ID: B5690EEEBB952194
1 changed files with 7 additions and 2 deletions
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9
alacritty/src/display/damage.rs
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@ -238,12 +238,12 @@ impl<'a> RenderDamageIterator<'a> {
fn overdamage(size_info: &SizeInfo<u32>, mut rect: Rect) -> Rect {
rect.x = (rect.x - size_info.cell_width() as i32).max(0);
rect.width = cmp::min(
size_info.width() as i32 - rect.x,
(size_info.width() as i32 - rect.x).max(0),
rect.width + 2 * size_info.cell_width() as i32,
);
rect.y = (rect.y - size_info.cell_height() as i32 / 2).max(0);
rect.height = cmp::min(
size_info.height() as i32 - rect.y,
(size_info.height() as i32 - rect.y).max(0),
rect.height + size_info.cell_height() as i32,
);
@ -344,6 +344,11 @@ mod tests {
),
rect
);
// Test out of bounds coord clamping.
let rect = Rect::new(bound * 2, bound * 2, rect_side, rect_side);
let rect = RenderDamageIterator::overdamage(&size_info, rect);
assert_eq!(Rect::new(bound * 2 - cell_size, bound * 2 - cell_size / 2, 0, 0), rect);
}
#[test]