/* GIMP - The GNU Image Manipulation Program
 * Copyright (C) 1995 Spencer Kimball and Peter Mattis
 *
 * This program 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.
 *
 * This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
 */

#ifndef __GIMP_IMAGE__UNDO_H__
#define __GIMP_IMAGE__UNDO_H__


gboolean        gimp_image_undo_is_enabled      (const GimpImage  *image);
gboolean        gimp_image_undo_enable          (GimpImage        *image);
gboolean        gimp_image_undo_disable         (GimpImage        *image);
gboolean        gimp_image_undo_freeze          (GimpImage        *image);
gboolean        gimp_image_undo_thaw            (GimpImage        *image);

gboolean        gimp_image_undo                 (GimpImage        *image);
gboolean        gimp_image_redo                 (GimpImage        *image);

gboolean        gimp_image_strong_undo          (GimpImage        *image);
gboolean        gimp_image_strong_redo          (GimpImage        *image);

GimpUndoStack * gimp_image_get_undo_stack       (const GimpImage  *image);
GimpUndoStack * gimp_image_get_redo_stack       (const GimpImage  *image);

void            gimp_image_undo_free            (GimpImage        *image);

gint            gimp_image_get_undo_group_count (const GimpImage  *image);
gboolean        gimp_image_undo_group_start     (GimpImage        *image,
                                                 GimpUndoType      undo_type,
                                                 const gchar      *name);
gboolean        gimp_image_undo_group_end       (GimpImage        *image);

GimpUndo      * gimp_image_undo_push            (GimpImage        *image,
                                                 GType             object_type,
                                                 GimpUndoType      undo_type,
                                                 const gchar      *name,
                                                 GimpDirtyMask     dirty_mask,
                                                 ...) G_GNUC_NULL_TERMINATED;

GimpUndo      * gimp_image_undo_can_compress    (GimpImage        *image,
                                                 GType             object_type,
                                                 GimpUndoType      undo_type);

GimpUndo      * gimp_image_undo_get_fadeable    (GimpImage        *image);


#endif /* __GIMP_IMAGE__UNDO_H__ */