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/*
* Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
* Copyright (C) 1999-2001 Hiroyuki Yamamoto
*
* 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
/* code ported from gedit */
#ifndef __UNDO_H__
#define __UNDO_H__
#include <glib.h>
#include <gtk/gtktextview.h>
#include <gtk/gtkitemfactory.h>
typedef enum
{
UNDO_ACTION_INSERT,
UNDO_ACTION_DELETE,
UNDO_ACTION_REPLACE_INSERT,
UNDO_ACTION_REPLACE_DELETE,
} UndoAction;
typedef enum
{
UNDO_STATE_TRUE,
UNDO_STATE_FALSE,
UNDO_STATE_UNCHANGED,
UNDO_STATE_REFRESH,
} UndoState;
typedef struct _UndoMain UndoMain;
typedef void (*UndoChangeStateFunc) (UndoMain *undostruct,
gint undo_state,
gint redo_state,
gpointer data);
struct _UndoMain
{
GtkTextView *textview;
GList *undo;
GList *redo;
UndoChangeStateFunc change_state_func;
gpointer change_state_data;
gboolean undo_state : 1;
gboolean redo_state : 1;
gint paste;
};
UndoMain *undo_init (GtkWidget *text);
void undo_destroy (UndoMain *undostruct);
void undo_set_change_state_func (UndoMain *undostruct,
UndoChangeStateFunc func,
gpointer data);
void undo_undo (UndoMain *undostruct);
void undo_redo (UndoMain *undostruct);
void undo_block (UndoMain *undostruct);
void undo_unblock (UndoMain *undostruct);
#endif /* __UNDO_H__ */
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