swayfx/include/sway/tree/layout.h

#ifndef _SWAY_LAYOUT_H
#define _SWAY_LAYOUT_H
#include <wlr/types/wlr_output_layout.h>
#include <wlr/render/wlr_texture.h>
#include "sway/tree/container.h"

enum movement_direction {
	MOVE_LEFT,
	MOVE_RIGHT,
	MOVE_UP,
	MOVE_DOWN,
	MOVE_PARENT,
	MOVE_CHILD,
};

enum resize_edge {
	RESIZE_EDGE_NONE   = 0,
	RESIZE_EDGE_LEFT   = 1,
	RESIZE_EDGE_RIGHT  = 2,
	RESIZE_EDGE_TOP    = 4,
	RESIZE_EDGE_BOTTOM = 8,
};

struct sway_container;

struct sway_root {
	struct wlr_output_layout *output_layout;

	struct wl_listener output_layout_change;

	struct wl_list xwayland_unmanaged; // sway_xwayland_unmanaged::link
	struct wl_list drag_icons; // sway_drag_icon::link

	struct wlr_texture *debug_tree;

	struct wl_list outputs; // sway_output::link

	list_t *scratchpad; // struct sway_container

	struct {
		struct wl_signal new_container;
	} events;
};

void layout_init(void);

void container_add_child(struct sway_container *parent,
		struct sway_container *child);

struct sway_container *container_add_sibling(struct sway_container *parent,
		struct sway_container *child);

struct sway_container *container_remove_child(struct sway_container *child);

struct sway_container *container_replace_child(struct sway_container *child,
		struct sway_container *new_child);

void container_move_to(struct sway_container* container,
		struct sway_container* destination);

void container_move(struct sway_container *container,
		enum movement_direction dir, int move_amt);

enum sway_container_layout container_get_default_layout(
		struct sway_container *con);

void container_sort_workspaces(struct sway_container *output);

struct sway_container *container_get_in_direction(struct sway_container
		*container, struct sway_seat *seat, enum movement_direction dir);

struct sway_container *container_split(struct sway_container *child,
		enum sway_container_layout layout);

void container_recursive_resize(struct sway_container *container,
		double amount, enum resize_edge edge);

void container_swap(struct sway_container *con1, struct sway_container *con2);

#endif