1 /* 2 * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client 3 * Copyright (C) 1999-2012 Hiroyuki Yamamoto and the Claws Mail 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 3 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, see <http://www.gnu.org/licenses/>. 17 * 18 */ 19 20 /* code ported from gedit */ 21 22 #ifndef __UNDO_H__ 23 #define __UNDO_H__ 24 25 #include <glib.h> 26 #include <gtk/gtk.h> 27 28 typedef enum 29 { 30 UNDO_ACTION_INSERT, 31 UNDO_ACTION_DELETE, 32 UNDO_ACTION_REPLACE_INSERT, 33 UNDO_ACTION_REPLACE_DELETE 34 } UndoAction; 35 36 typedef enum 37 { 38 UNDO_STATE_TRUE, 39 UNDO_STATE_FALSE, 40 UNDO_STATE_UNCHANGED, 41 UNDO_STATE_REFRESH 42 } UndoState; 43 44 typedef struct _UndoMain UndoMain; 45 typedef struct _UndoWrap UndoWrap; 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 67 UndoWrap *wrap_info; 68 }; 69 70 UndoMain *undo_init (GtkWidget *text); 71 void undo_destroy (UndoMain *undostruct); 72 73 void undo_set_change_state_func (UndoMain *undostruct, 74 UndoChangeStateFunc func, 75 gpointer data); 76 77 void undo_undo (UndoMain *undostruct); 78 void undo_redo (UndoMain *undostruct); 79 void undo_block (UndoMain *undostruct); 80 void undo_unblock (UndoMain *undostruct); 81 void undo_wrapping (UndoMain *undostruct, 82 gboolean wrap); 83 void undo_paste_clipboard (GtkTextView *textview, 84 UndoMain *undostruct); 85 #endif /* __UNDO_H__ */ 86