#ifndef THING_H
#define THING_H
/*
#include <libpng.h>
#include <pango.h>
#include <cairo/cairo.h>
#include <cairo/cairo-xcb.h>
#include <xcb/xcb.h>
#include <X11/Xlib.h>
#include <X11/Xatom.h>
*/
#include <stdint.h>

typedef struct thing thing_t;
typedef uint64_t thing_id_t;

thing_id_t thing_id(const thing_t *);

typedef struct {
	int x;
	int y;
	int w;
	int h;
} thing_geom;

struct put_event;

struct link {
	thing_id_t	from;
	thing_id_t	to;
	uint32_t	type;
};

typedef struct {
	void (*draw)(thing_t *self, void *render_ctx);
	int (*hit)(thing_t *self, int x, int y);
	void (*event)(thing_t *self, const struct put_event *ev);
} thing_ops;

thing_t *thing_create(const thing_ops *ops, void *userdata, thing_geom geom);

void thing_set_geom(thing_t *t, thing_geom g);
thing_geom thing_get_geom(const thing_t *t);

void *thing_userdata(const thing_t *t);

void thing_destroy(thing_t *t);

#endif /* THING_H */