1 /*
2  *  Copyright (c) 2011 Dmitry Kazakov <dimula73@gmail.com>
3  *
4  *  This program is free software; you can redistribute it and/or modify
5  *  it under the terms of the GNU General Public License as published by
6  *  the Free Software Foundation; either version 2 of the License, or
7  *  (at your option) any later version.
8  *
9  *  This program is distributed in the hope that it will be useful,
10  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
11  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12  *  GNU General Public License for more details.
13  *
14  *  You should have received a copy of the GNU General Public License
15  *  along with this program; if not, write to the Free Software
16  *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
17  */
18 
19 #ifndef __KIS_UNDO_STORES_H
20 #define __KIS_UNDO_STORES_H
21 
22 #include "kis_undo_store.h"
23 
24 class KUndo2Stack;
25 class KUndo2MagicString;
26 
27 
28 /**
29  * KisSurrogateUndoAdapter -- saves commands directly to the
30  * internal stack. Used for wrapping around legacy code into
31  * a single command.
32  */
33 class KRITACOMMAND_EXPORT KisSurrogateUndoStore : public KisUndoStore
34 {
35 public:
36     KisSurrogateUndoStore();
37     ~KisSurrogateUndoStore() override;
38 
39     const KUndo2Command* presentCommand() override;
40     void undoLastCommand() override;
41     void addCommand(KUndo2Command *cmd) override;
42     void beginMacro(const KUndo2MagicString& macroName) override;
43     void endMacro() override;
44 
45     void undo();
46     void redo();
47 
48     void undoAll();
49     void redoAll();
50 
51     void purgeRedoState() override;
52 
53     void clear();
54 
55 private:
56     KUndo2Stack *m_undoStack;
57 };
58 
59 /**
60  * @brief The KisDumbUndoStore class doesn't actually save commands,
61  * so you cannot undo or redo!
62  */
63 class KRITACOMMAND_EXPORT KisDumbUndoStore : public KisUndoStore
64 {
65 public:
66     const KUndo2Command* presentCommand() override;
67     void undoLastCommand() override;
68     void addCommand(KUndo2Command *cmd) override;
69     void beginMacro(const KUndo2MagicString& macroName) override;
70     void endMacro() override;
71     void purgeRedoState() override;
72 };
73 
74 #endif /* __KIS_UNDO_STORES_H */
75