1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
|
/* Dia -- an diagram creation/manipulation program
* Copyright (C) 1999 Alexander Larsson
*
* 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.
*/
#ifndef UNDO_H
#define UNDO_H
typedef struct _UndoStack UndoStack;
#include "diagram.h"
#include "dia-guide.h"
#include "dia-change.h"
#include "dia-object-change.h"
struct _UndoStack {
Diagram *dia;
DiaChange *last_change; /* Points to the object on the top of stack. */
DiaChange *current_change; /* Points to the last object currently applied */
DiaChange *last_save; /* Points to current_change at the time of last save. */
int depth;
};
UndoStack *new_undo_stack(Diagram *dia);
void undo_destroy(UndoStack *stack);
void undo_push_change(UndoStack *stack, DiaChange *change);
void undo_set_transactionpoint(UndoStack *stack);
void undo_revert_to_last_tp(UndoStack *stack);
void undo_apply_to_next_tp(UndoStack *stack);
void undo_clear(UndoStack *stack);
void undo_mark_save(UndoStack *stack);
gboolean undo_is_saved(UndoStack *stack);
gboolean undo_available(UndoStack *stack, gboolean undo);
DiaChange* undo_remove_to(UndoStack *stack, GType type);
/* Specific undo functions: */
#define DIA_TYPE_TRANSACTION_POINT_CHANGE dia_transaction_point_change_get_type ()
G_DECLARE_FINAL_TYPE (DiaTransactionPointChange, dia_transaction_point_change, DIA, TRANSACTION_POINT_CHANGE, DiaChange)
#define DIA_TYPE_MOVE_OBJECTS_CHANGE dia_move_objects_change_get_type ()
G_DECLARE_FINAL_TYPE (DiaMoveObjectsChange, dia_move_objects_change, DIA, MOVE_OBJECTS_CHANGE, DiaChange)
DiaChange *dia_move_objects_change_new (Diagram *dia,
Point *orig_pos,
Point *dest_pos,
GList *obj_list);
#define DIA_TYPE_MOVE_HANDLE_CHANGE dia_move_handle_change_get_type ()
G_DECLARE_FINAL_TYPE (DiaMoveHandleChange, dia_move_handle_change, DIA, MOVE_HANDLE_CHANGE, DiaChange)
DiaChange *dia_move_handle_change_new (Diagram *dia,
Handle *handle,
DiaObject *obj,
Point orig_pos,
Point dest_pos,
int modifiers);
#define DIA_TYPE_CONNECT_CHANGE dia_connect_change_get_type ()
G_DECLARE_FINAL_TYPE (DiaConnectChange, dia_connect_change, DIA, CONNECT_CHANGE, DiaChange)
DiaChange *dia_connect_change_new (Diagram *dia,
DiaObject *obj,
Handle *handle,
ConnectionPoint *connectionpoint);
#define DIA_TYPE_UNCONNECT_CHANGE dia_unconnect_change_get_type ()
G_DECLARE_FINAL_TYPE (DiaUnconnectChange, dia_unconnect_change, DIA, UNCONNECT_CHANGE, DiaChange)
DiaChange *dia_unconnect_change_new (Diagram *dia,
DiaObject *obj,
Handle *handle);
#define DIA_TYPE_DELETE_OBJECTS_CHANGE dia_delete_objects_change_get_type ()
G_DECLARE_FINAL_TYPE (DiaDeleteObjectsChange, dia_delete_objects_change, DIA, DELETE_OBJECTS_CHANGE, DiaChange)
DiaChange *dia_delete_objects_change_new_with_children (Diagram *dia,
GList *obj_list);
DiaChange *dia_delete_objects_change_new (Diagram *dia,
GList *obj_list); /* Reads current obj list */
#define DIA_TYPE_INSERT_OBJECTS_CHANGE dia_insert_objects_change_get_type ()
G_DECLARE_FINAL_TYPE (DiaInsertObjectsChange, dia_insert_objects_change, DIA, INSERT_OBJECTS_CHANGE, DiaChange)
DiaChange *dia_insert_objects_change_new (Diagram *dia,
GList *obj_list,
int applied);
#define DIA_TYPE_REORDER_OBJECTS_CHANGE dia_reorder_objects_change_get_type ()
G_DECLARE_FINAL_TYPE (DiaReorderObjectsChange, dia_reorder_objects_change, DIA, REORDER_OBJECTS_CHANGE, DiaChange)
DiaChange *dia_reorder_objects_change_new (Diagram *dia,
GList *changed_list,
GList *orig_list); /* Reads current obj list */
#define DIA_TYPE_OBJECT_CHANGE_CHANGE dia_object_change_change_get_type ()
G_DECLARE_FINAL_TYPE (DiaObjectChangeChange, dia_object_change_change, DIA, OBJECT_CHANGE_CHANGE, DiaChange)
DiaChange *dia_object_change_change_new (Diagram *dia,
DiaObject *obj,
DiaObjectChange *change);
#define DIA_TYPE_GROUP_OBJECTS_CHANGE dia_group_objects_change_get_type ()
G_DECLARE_FINAL_TYPE (DiaGroupObjectsChange, dia_group_objects_change, DIA, GROUP_OBJECTS_CHANGE, DiaChange)
DiaChange *dia_group_objects_change_new (Diagram *dia,
GList *obj_list,
DiaObject *group,
GList *orig_list);
#define DIA_TYPE_UNGROUP_OBJECTS_CHANGE dia_ungroup_objects_change_get_type ()
G_DECLARE_FINAL_TYPE (DiaUngroupObjectsChange, dia_ungroup_objects_change, DIA, UNGROUP_OBJECTS_CHANGE, DiaChange)
DiaChange *dia_ungroup_objects_change_new (Diagram *dia,
GList *obj_list,
DiaObject *group,
int group_index);
#define DIA_TYPE_PARENTING_CHANGE dia_parenting_change_get_type ()
G_DECLARE_FINAL_TYPE (DiaParentingChange, dia_parenting_change, DIA, PARENTING_CHANGE, DiaChange)
DiaChange *dia_parenting_change_new (Diagram *dia,
DiaObject *parentobj,
DiaObject *childobj,
gboolean parent);
#define DIA_TYPE_MOVE_OBJECT_TO_LAYER_CHANGE dia_move_object_to_layer_change_get_type ()
G_DECLARE_FINAL_TYPE (DiaMoveObjectToLayerChange, dia_move_object_to_layer_change, DIA, MOVE_OBJECT_TO_LAYER_CHANGE, DiaChange)
DiaChange *dia_move_object_to_layer_change_new (Diagram *diagram,
GList *selected_list,
gboolean moving_up);
#define DIA_TYPE_IMPORT_CHANGE dia_import_change_get_type ()
G_DECLARE_FINAL_TYPE (DiaImportChange, dia_import_change, DIA, IMPORT_CHANGE, DiaChange)
/* Create an import change object listening on diagram additions/removals */
DiaChange *dia_import_change_new (Diagram *diagram);
/* Finish listening on the diagram changes */
gboolean dia_import_change_done (Diagram *dia,
DiaChange *chg);
#define DIA_TYPE_MEM_SWAP_CHANGE dia_mem_swap_change_get_type ()
G_DECLARE_FINAL_TYPE (DiaMemSwapChange, dia_mem_swap_change, DIA, MEM_SWAP_CHANGE, DiaChange)
/* handle with care, just plain memory copy */
DiaChange *dia_mem_swap_change_new (Diagram *dia,
gpointer dest,
gsize size);
#define DIA_TYPE_MOVE_GUIDE_CHANGE dia_move_guide_change_get_type ()
G_DECLARE_FINAL_TYPE (DiaMoveGuideChange, dia_move_guide_change, DIA, MOVE_GUIDE_CHANGE, DiaChange)
DiaChange *dia_move_guide_change_new (Diagram *dia,
DiaGuide *guide,
real orig_pos,
real dest_pos);
#define DIA_TYPE_ADD_GUIDE_CHANGE dia_add_guide_change_get_type ()
G_DECLARE_FINAL_TYPE (DiaAddGuideChange, dia_add_guide_change, DIA, ADD_GUIDE_CHANGE, DiaChange)
DiaChange *dia_add_guide_change_new (Diagram *dia,
DiaGuide *guide,
int applied);
#define DIA_TYPE_DELETE_GUIDE_CHANGE dia_delete_guide_change_get_type ()
G_DECLARE_FINAL_TYPE (DiaDeleteGuideChange, dia_delete_guide_change, DIA, DELETE_GUIDE_CHANGE, DiaChange)
DiaChange *dia_delete_guide_change_new (Diagram *dia,
DiaGuide *guide,
int applied);
#endif /* UNDO_H */
|
