mirror of
https://github.com/hyprwm/wlroots-hyprland.git
synced 2024-12-23 18:39:48 +01:00
86 lines
2 KiB
C
86 lines
2 KiB
C
#include <limits.h>
|
|
#include <stdlib.h>
|
|
#include <math.h>
|
|
#include <stdbool.h>
|
|
#include <wlr/types/wlr_geometry.h>
|
|
#include <wlr/util/log.h>
|
|
|
|
static double get_distance(double x1, double y1, double x2, double y2) {
|
|
double distance;
|
|
distance = sqrt((x1 - x2) * (x1 - x2) + (y1 - y2) * (y1 - y2));
|
|
return distance;
|
|
}
|
|
|
|
void wlr_geometry_closest_boundary(struct wlr_geometry *geo, double x, double y,
|
|
int *dest_x, int *dest_y, double *distance) {
|
|
// find the closest x point
|
|
if (x < geo->x) {
|
|
*dest_x = geo->x;
|
|
} else if (x > geo->x + geo->width) {
|
|
*dest_x = geo->x + geo->width;
|
|
} else {
|
|
*dest_x = x;
|
|
}
|
|
|
|
// find closest y point
|
|
if (y < geo->y) {
|
|
*dest_y = geo->y;
|
|
} else if (y > geo->y + geo->height) {
|
|
*dest_y = geo->y + geo->height;
|
|
} else {
|
|
*dest_y = y;
|
|
}
|
|
|
|
// calculate distance
|
|
if (distance) {
|
|
*distance = get_distance(*dest_x, *dest_y, x, y);
|
|
}
|
|
}
|
|
|
|
#ifndef max
|
|
#define max(a,b) ((a) > (b) ? (a) : (b))
|
|
#endif
|
|
|
|
#ifndef min
|
|
#define min(a,b) ((a) < (b) ? (a) : (b))
|
|
#endif
|
|
|
|
bool wlr_geometry_empty(struct wlr_geometry *geo) {
|
|
return geo == NULL || geo->width <= 0 || geo->height <= 0;
|
|
}
|
|
|
|
bool wlr_geometry_intersection(struct wlr_geometry *geo_a,
|
|
struct wlr_geometry *geo_b, struct wlr_geometry **geo_dest) {
|
|
struct wlr_geometry *dest = *geo_dest;
|
|
bool a_empty = wlr_geometry_empty(geo_a);
|
|
bool b_empty = wlr_geometry_empty(geo_b);
|
|
|
|
if (a_empty || b_empty) {
|
|
dest->x = 0;
|
|
dest->y = 0;
|
|
dest->width = -100;
|
|
dest->height = -100;
|
|
return false;
|
|
}
|
|
|
|
int x1 = max(geo_a->x, geo_b->x);
|
|
int y1 = max(geo_a->y, geo_b->y);
|
|
int x2 = min(geo_a->x + geo_a->width, geo_b->x + geo_b->width);
|
|
int y2 = min(geo_a->y + geo_a->height, geo_b->y + geo_b->height);
|
|
|
|
dest->x = x1;
|
|
dest->y = y1;
|
|
dest->width = x2 - x1;
|
|
dest->height = y2 - y1;
|
|
|
|
return !wlr_geometry_empty(dest);
|
|
}
|
|
|
|
bool wlr_geometry_contains_point(struct wlr_geometry *geo, int x, int y) {
|
|
if (wlr_geometry_empty(geo)) {
|
|
return false;
|
|
} else {
|
|
return x >= geo->x && x <= geo->x + geo->width &&
|
|
y >= geo->y && y <= geo->y + geo->height;
|
|
}
|
|
}
|