qofundo.h

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/***************************************************************************
 *            qofundo.h
 *
 *  Thu Aug 25 09:19:25 2005
 *  Copyright  2005,2006  Neil Williams
 *  linux@codehelp.co.uk
 ****************************************************************************/
/*
 *  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
 */

#ifndef _QOFUNDO_H
#define _QOFUNDO_H

#define QOF_MOD_UNDO "qof-undo"

void 
qof_undo_set_param (QofEntity * ent, const QofParam * param, 
                    gchar * value);

void 
qof_undo_modify (QofInstance * inst, const QofParam * param);

void 
qof_undo_commit (QofInstance * inst, const QofParam * param);

void qof_undo_create (QofInstance * inst);

void qof_undo_delete (QofInstance * inst);

void qof_book_clear_undo (QofBook * book);

void qof_book_undo (QofBook * book);

void qof_book_redo (QofBook * book);

gboolean qof_book_can_undo (QofBook * book);

gboolean qof_book_can_redo (QofBook * book);

void qof_book_start_operation (QofBook * book, gchar * label);

void qof_book_end_operation (QofBook * book);

QofTime *
qof_book_undo_first_modified (QofBook * book);

gint qof_book_undo_count (QofBook * book);

#endif /* _QOFUNDO_H */

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