swayfx/include/sway/layout.h

#ifndef _SWAY_LAYOUT_H
#define _SWAY_LAYOUT_H

#include <wlr/types/wlr_output_layout.h>
#include "sway/container.h"

struct sway_container;

struct sway_root {
	struct wlr_output_layout *output_layout;

	struct wl_listener output_layout_change;

	struct wl_list unmanaged_views; // sway_view::unmanaged_view_link

	struct {
		struct wl_signal new_container;
	} events;
};

void init_layout(void);
void add_child(struct sway_container *parent, struct sway_container *child);
swayc_t *add_sibling(swayc_t *parent, swayc_t *child);
struct sway_container *remove_child(struct sway_container *child);
enum swayc_layouts default_layout(struct sway_container *output);
void sort_workspaces(struct sway_container *output);
void arrange_windows(struct sway_container *container, double width, double height);

#endif