/*
 * Copyright (C) 2021  P. J. McDermott
 *
 * This file is part of Maze Fight
 *
 * Maze Fight is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Maze Fight is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Maze Fight.  If not, see <http://www.gnu.org/licenses/>.
 */

#ifndef MFTK_WIDGET_H_
#define MFTK_WIDGET_H_

#include <SDL.h>

struct mftk_widget {
	int    w;
	int    h;
	int    vis;
	int    can_focus;
	void (*layout)(struct mftk_widget *);
	int  (*event)(struct mftk_widget *, SDL_Event *);
	int  (*render)(struct mftk_widget *, SDL_Renderer *, int, int);
	void (*destroy)(struct mftk_widget *);
};

struct mftk_widget *
mftk_widget_new(size_t size);

#define mftk_widget_init(w, t_w, name) \
	do { \
		w = mftk_widget_new(sizeof(struct mftk_##name)); \
		if (w == NULL) { \
			return NULL; \
		}; \
		w->layout  = &_mftk_##name##_layout; \
		w->event   = &_mftk_##name##_event; \
		w->render  = &_mftk_##name##_render; \
		w->destroy = &_mftk_##name##_destroy; \
		t_w = (struct mftk_##name *) w; \
	} while (0)

#endif  /* MFTK_WIDGET_H_ */