76a334d168cef998bc198d4616cd76b06ef5a157
[claws.git] / src / undo.h
1 /*
2  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
3  * Copyright (C) 1999-2006 Hiroyuki Yamamoto and the Sylpheed-Claws team
4  *
5  * This program is free software; you can redistribute it and/or modify
6  * it under the terms of the GNU General Public License as published by
7  * the Free Software Foundation; either version 2 of the License, or
8  * (at your option) any later version.
9  *
10  * This program is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13  * GNU General Public License for more details.
14  *
15  * You should have received a copy of the GNU General Public License
16  * along with this program; if not, write to the Free Software
17  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
18  */
19
20 /* code ported from gedit */
21
22 #ifndef __UNDO_H__
23 #define __UNDO_H__
24
25 #include <glib.h>
26 #include <gtk/gtktextview.h>
27 #include <gtk/gtkitemfactory.h>
28
29 typedef enum 
30 {
31         UNDO_ACTION_INSERT,
32         UNDO_ACTION_DELETE,
33         UNDO_ACTION_REPLACE_INSERT,
34         UNDO_ACTION_REPLACE_DELETE
35 } UndoAction;
36
37 typedef enum 
38 {
39         UNDO_STATE_TRUE,
40         UNDO_STATE_FALSE,
41         UNDO_STATE_UNCHANGED,
42         UNDO_STATE_REFRESH
43 } UndoState;
44
45 typedef struct _UndoMain UndoMain;
46
47 typedef void (*UndoChangeStateFunc)     (UndoMain       *undostruct,
48                                          gint            undo_state,
49                                          gint            redo_state,
50                                          gpointer        data);
51
52 struct _UndoMain 
53 {
54         GtkTextView *textview;
55
56         GList *undo;
57         GList *redo;
58
59         UndoChangeStateFunc change_state_func;
60         gpointer change_state_data;
61
62         gboolean undo_state : 1;
63         gboolean redo_state : 1;
64
65         gint paste;
66         gint wrap;
67 };
68
69 UndoMain *undo_init             (GtkWidget              *text);
70 void undo_destroy               (UndoMain               *undostruct);
71
72 void undo_set_change_state_func (UndoMain               *undostruct,
73                                  UndoChangeStateFunc     func,
74                                  gpointer                data);
75
76 void undo_undo                  (UndoMain               *undostruct); 
77 void undo_redo                  (UndoMain               *undostruct); 
78 void undo_block                 (UndoMain               *undostruct);
79 void undo_unblock               (UndoMain               *undostruct);
80 void undo_wrapping              (UndoMain               *undostruct, 
81                                  gboolean                wrap);
82 #endif /* __UNDO_H__ */