/*
 * This file is part of Siril, an astronomy image processor.
 * Copyright (C) 2005-2011 Francois Meyer (dulle at free.fr)
 * Copyright (C) 2012-2026 team free-astro (see more in AUTHORS file)
 * Reference site is https://siril.org
 *
 * Siril 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.
 *
 * Siril 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 Siril. If not, see <http://www.gnu.org/licenses/>.
 */
#ifndef UNDO_H_
#define UNDO_H_

#define UNDO		-1
#define REDO		 1
#define HISTORY_SIZE 30		// size of the operations history

gboolean is_undo_available();
gboolean is_redo_available();
int undo_display_data(int dir);
int undo_save_state(fits *fit, const char *message, ...);
int	undo_flush();
void set_undo_redo_tooltip();
gboolean undo_in_thread(gpointer user_data);
gboolean redo_in_thread(gpointer user_data);

#endif /* UNDO_H_ */
