mirror of
https://github.com/labwc/labwc.git
synced 2025-11-18 07:00:01 -05:00
50 lines
1.3 KiB
C
50 lines
1.3 KiB
C
|
// SPDX-License-Identifier: GPL-2.0-only
|
||
|
|
#include <assert.h>
|
||
|
|
#include "common/box.h"
|
||
|
|
#include "common/macros.h"
|
||
|
|
|
||
|
|
bool
|
||
|
|
box_contains(struct wlr_box *box_super, struct wlr_box *box_sub)
|
||
|
|
{
|
||
|
|
if (wlr_box_empty(box_super) || wlr_box_empty(box_sub)) {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
return box_super->x <= box_sub->x
|
||
|
|
&& box_super->x + box_super->width >= box_sub->x + box_sub->width
|
||
|
|
&& box_super->y <= box_sub->y
|
||
|
|
&& box_super->y + box_super->height >= box_sub->y + box_sub->height;
|
||
|
|
}
|
||
|
|
|
||
|
|
bool
|
||
|
|
box_intersects(struct wlr_box *box_a, struct wlr_box *box_b)
|
||
|
|
{
|
||
|
|
if (wlr_box_empty(box_a) || wlr_box_empty(box_b)) {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
return box_a->x < box_b->x + box_b->width
|
||
|
|
&& box_b->x < box_a->x + box_a->width
|
||
|
|
&& box_a->y < box_b->y + box_b->height
|
||
|
|
&& box_b->y < box_a->y + box_a->height;
|
||
|
|
}
|
||
|
|
|
||
|
|
void
|
||
|
|
box_union(struct wlr_box *box_dest, struct wlr_box *box_a, struct wlr_box *box_b)
|
||
|
|
{
|
||
|
|
if (wlr_box_empty(box_a)) {
|
||
|
|
*box_dest = *box_b;
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
if (wlr_box_empty(box_b)) {
|
||
|
|
*box_dest = *box_a;
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
int x1 = MIN(box_a->x, box_b->x);
|
||
|
|
int y1 = MIN(box_a->y, box_b->y);
|
||
|
|
int x2 = MAX(box_a->x + box_a->width, box_b->x + box_b->width);
|
||
|
|
int y2 = MAX(box_a->y + box_a->height, box_b->y + box_b->height);
|
||
|
|
box_dest->x = x1;
|
||
|
|
box_dest->y = y1;
|
||
|
|
box_dest->width = x2 - x1;
|
||
|
|
box_dest->height = y2 - y1;
|
||
|
|
}
|