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util/box: introduce wlr_fbox_intersects

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Signed-off-by: Loukas Agorgianitis <loukas@agorgianitis.com>
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Loukas Agorgianitis 2026-03-27 21:28:18 +02:00
parent d05f14f38b
commit 807373594e
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2 changed files with 16 additions and 0 deletions
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7
include/wlr/util/box.h
View file

@ -114,6 +114,13 @@ void wlr_fbox_transform(struct wlr_fbox *dest, const struct wlr_fbox *box,
*/
bool wlr_box_intersects(const struct wlr_box *a, const struct wlr_box *b);
/**
* Checks whether two boxes intersect.
*
* Returns false if either box is empty.
*/
bool wlr_fbox_intersects(const struct wlr_fbox *a, const struct wlr_fbox *b);
/**
* Returns true if the two boxes are equal, false otherwise.
*/

9
util/box.c
View file

@ -111,6 +111,15 @@ bool wlr_box_intersects(const struct wlr_box *a, const struct wlr_box *b) {
a->y < b->y + b->height && b->y < a->y + a->height;
}
bool wlr_fbox_intersects(const struct wlr_fbox *a, const struct wlr_fbox *b) {
if (wlr_fbox_empty(a) || wlr_fbox_empty(b)) {
return false;
}
return a->x < b->x + b->width && b->x < a->x + a->width &&
a->y < b->y + b->height && b->y < a->y + a->height;
}
void wlr_box_transform(struct wlr_box *dest, const struct wlr_box *box,
enum wl_output_transform transform, int width, int height) {
struct wlr_box src = {0};