/*
 * ***** BEGIN GPL LICENSE BLOCK *****
 *
 * 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 2
 * 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, write to the Free Software Foundation,
 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 * ***** END GPL LICENSE BLOCK *****
 */

/** \file ED_undo.h
 *  \ingroup editors
 */

#ifndef __ED_UNDO_H__
#define __ED_UNDO_H__

struct bContext;
struct CLG_LogRef;
struct wmOperator;
struct wmOperatorType;
struct UndoStack;

/* undo.c */
void    ED_undo_push(struct bContext *C, const char *str);
void    ED_undo_push_op(struct bContext *C, struct wmOperator *op);
void    ED_undo_grouped_push(struct bContext *C, const char *str);
void    ED_undo_grouped_push_op(struct bContext *C, struct wmOperator *op);
void    ED_undo_pop_op(struct bContext *C, struct wmOperator *op);
void    ED_undo_pop(struct bContext *C);
void    ED_undo_redo(struct bContext *C);
void    ED_OT_undo(struct wmOperatorType *ot);
void    ED_OT_undo_push(struct wmOperatorType *ot);
void    ED_OT_redo(struct wmOperatorType *ot);
void    ED_OT_undo_redo(struct wmOperatorType *ot);
void    ED_OT_undo_history(struct wmOperatorType *ot);

int     ED_undo_operator_repeat(struct bContext *C, struct wmOperator *op);
/* convenience since UI callbacks use this mostly*/
void    ED_undo_operator_repeat_cb(struct bContext *C, void *arg_op, void *arg_unused);
void    ED_undo_operator_repeat_cb_evt(struct bContext *C, void *arg_op, int arg_unused);

bool    ED_undo_is_valid(const struct bContext *C, const char *undoname);

struct UndoStack *ED_undo_stack_get(void);

/* helpers */
void ED_undo_object_set_active_or_warn(
        struct ViewLayer *view_layer, struct Object *ob, const char *info, struct CLG_LogRef *log);

/* undo_system_types.c */
void ED_undosys_type_init(void);
void ED_undosys_type_free(void);

/* memfile_undo.c */
struct MemFile *ED_undosys_stack_memfile_get_active(struct UndoStack *ustack);

#endif /* __ED_UNDO_H__ */