wlroots-hyprland/include/wlr/types/wlr_output_layout.h

#ifndef _WLR_TYPES_OUTPUT_LAYOUT_H
#define _WLR_TYPES_OUTPUT_LAYOUT_H
#include <wlr/types/wlr_output.h>
#include <wayland-util.h>
#include <stdbool.h>

struct wlr_output_layout_state;

struct wlr_output_layout {
    struct wl_list outputs;
	struct wlr_output_layout_state *state;
};

struct wlr_output_layout_output_state;

struct wlr_output_layout_output {
    struct wlr_output *output;
    int x, y;
    struct wl_list link;
	struct wlr_output_layout_output_state *state;
};

struct wlr_output_layout *wlr_output_layout_init();

void wlr_output_layout_destroy(struct wlr_output_layout *layout);

struct wlr_output_layout_output *wlr_output_layout_get(
		struct wlr_output_layout *layout, struct wlr_output *reference);

struct wlr_output *wlr_output_layout_output_at(struct wlr_output_layout *layout,
		double x, double y);

void wlr_output_layout_add(struct wlr_output_layout *layout,
		struct wlr_output *output, int x, int y);

void wlr_output_layout_move(struct wlr_output_layout *layout,
		struct wlr_output *output, int x, int y);

void wlr_output_layout_remove(struct wlr_output_layout *layout,
		struct wlr_output *output);

/**
 * Given x and y as pointers to global coordinates, adjusts them to local output
 * coordinates relative to the given reference output.
 */
void wlr_output_layout_output_coords(struct wlr_output_layout *layout,
		struct wlr_output *reference, double *x, double *y);

bool wlr_output_layout_contains_point(struct wlr_output_layout *layout,
		struct wlr_output *reference, int x, int y);

bool wlr_output_layout_intersects(struct wlr_output_layout *layout,
		struct wlr_output *reference, int x1, int y1, int x2, int y2);

/**
 * Get the closest boundary point of this layout from the given point from the
 * reference output. If reference is NULL, gets the closest boundary point from
 * the entire layout.
 */
void wlr_output_layout_closest_boundary(struct wlr_output_layout *layout,
		struct wlr_output *reference, double x, double y, double *dest_x,
		double *dest_y);

/**
 * Get the geometry of the layout for the given reference output. If `reference`
 * is NULL, the geometry will be for the extents of the entire layout.
 */
struct wlr_geometry *wlr_output_layout_get_geometry(
		struct wlr_output_layout *layout, struct wlr_output *reference);

#endif