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util/box: always treat NULL boxes as empty
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5d67bbde86
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5f4a35290d
@ -40,6 +40,11 @@ struct wlr_fbox {
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double width, height;
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};
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/**
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* Functions below accept NULL where a box is expected, which is treated
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* the same as an empty box.
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*/
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/**
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* Finds the closest point within the box bounds.
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*
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12
util/box.c
12
util/box.c
@ -8,7 +8,7 @@
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void wlr_box_closest_point(const struct wlr_box *box, double x, double y,
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double *dest_x, double *dest_y) {
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// if box is empty, then it contains no points, so no closest point either
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if (box->width <= 0 || box->height <= 0) {
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if (wlr_box_empty(box)) {
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*dest_x = NAN;
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*dest_y = NAN;
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return;
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@ -71,6 +71,11 @@ bool wlr_box_contains_point(const struct wlr_box *box, double x, double y) {
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void wlr_box_transform(struct wlr_box *dest, const struct wlr_box *box,
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enum wl_output_transform transform, int width, int height) {
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if (wlr_box_empty(box)) {
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*dest = (struct wlr_box){0};
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return;
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}
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struct wlr_box src = *box;
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if (transform % 2 == 0) {
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@ -123,6 +128,11 @@ bool wlr_fbox_empty(const struct wlr_fbox *box) {
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void wlr_fbox_transform(struct wlr_fbox *dest, const struct wlr_fbox *box,
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enum wl_output_transform transform, double width, double height) {
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if (wlr_fbox_empty(box)) {
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*dest = (struct wlr_fbox){0};
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return;
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}
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struct wlr_fbox src = *box;
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if (transform % 2 == 0) {
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