Method damage

std/src/gfx/lcd/buffered/mod.rs:232–258

Extends the current damage area to include the area between between `x1y1` and `x2y2` (inclusive) as damaged. This only makes sense when syncing is disabled, as the damage area represents the contents that need to be flushed to the LCD once syncing is enabled again.

(&mut self, x1y1: LcdXY, x2y2: LcdXY)

    /// This only makes sense when syncing is disabled, as the damage area represents the contents
    /// that need to be flushed to the LCD once syncing is enabled again.
    fn damage(&mut self, x1y1: LcdXY, x2y2: LcdXY) {
        debug_assert!(!self.sync);
        debug_assert!(x2y2.x >= x1y1.x);
        debug_assert!(x2y2.y >= x1y1.y);

        if self.damage.is_none() {
            self.damage = Some((x1y1, x2y2));
            return;
        }
        let mut damage = self.damage.unwrap();

        if damage.0.x > x1y1.x {
            damage.0.x = x1y1.x;
        }
        if damage.0.y > x1y1.y {
            damage.0.y = x1y1.y;
        }

        if damage.1.x < x2y2.x {
            damage.1.x = x2y2.x;
        }
        if damage.1.y < x2y2.y {
            damage.1.y = x2y2.y;
        }

        self.damage = Some(damage);
    }

    /// Fills the area contained between `x1y1` and `x2y2` (inclusive) with the current drawing
    /// color.