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box: factor out box_center()

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This commit is contained in:
John Lindgren 2025-11-25 23:25:47 -05:00 • committed by Hiroaki Yamamoto
parent 9f5ff391cc
commit 5ea617a393
3 changed files with 31 additions and 17 deletions
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19
src/common/box.c
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@ -35,6 +35,25 @@ box_union(struct wlr_box *box_dest, struct wlr_box *box_a, struct wlr_box *box_b
box_dest->height = y2 - y1;
}
void
box_center(int width, int height, const struct wlr_box *ref,
const struct wlr_box *bound, int *x, int *y)
{
*x = ref->x + (ref->width - width) / 2;
*y = ref->y + (ref->height - height) / 2;
if (*x < bound->x) {
*x = bound->x;
} else if (*x + width > bound->x + bound->width) {
*x = bound->x + bound->width - width;
}
if (*y < bound->y) {
*y = bound->y;
} else if (*y + height > bound->y + bound->height) {
*y = bound->y + bound->height - height;
}
}
struct wlr_box
box_fit_within(int width, int height, struct wlr_box *bound)
{