Mercurial > hg > orthanc-stone
annotate Framework/Toolbox/UndoRedoStack.cpp @ 1368:33da5d02885f broker
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author | Benjamin Golinvaux <bgo@osimis.io> |
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date | Sat, 18 Apr 2020 14:45:22 +0200 |
parents | 2d8ab34c8c91 |
children | 30deba7bc8e2 |
rev | line source |
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408 | 1 /** |
2 * Stone of Orthanc | |
3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics | |
4 * Department, University Hospital of Liege, Belgium | |
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Sebastien Jodogne <s.jodogne@gmail.com>
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5 * Copyright (C) 2017-2020 Osimis S.A., Belgium |
408 | 6 * |
7 * This program is free software: you can redistribute it and/or | |
8 * modify it under the terms of the GNU Affero General Public License | |
9 * as published by the Free Software Foundation, either version 3 of | |
10 * the License, or (at your option) any later version. | |
11 * | |
12 * This program is distributed in the hope that it will be useful, but | |
13 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
15 * Affero General Public License for more details. | |
16 * | |
17 * You should have received a copy of the GNU Affero General Public License | |
18 * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
19 **/ | |
20 | |
21 | |
22 #include "UndoRedoStack.h" | |
23 | |
24 #include <Core/OrthancException.h> | |
25 | |
26 #include <cassert> | |
27 | |
28 namespace OrthancStone | |
29 { | |
30 void UndoRedoStack::Clear(UndoRedoStack::Stack::iterator from) | |
31 { | |
32 for (Stack::iterator it = from; it != stack_.end(); ++it) | |
33 { | |
34 assert(*it != NULL); | |
35 delete *it; | |
36 } | |
37 | |
38 stack_.erase(from, stack_.end()); | |
39 } | |
40 | |
41 | |
42 UndoRedoStack::UndoRedoStack() : | |
43 current_(stack_.end()) | |
44 { | |
45 } | |
46 | |
47 | |
48 UndoRedoStack::~UndoRedoStack() | |
49 { | |
50 Clear(stack_.begin()); | |
51 } | |
52 | |
53 | |
54 void UndoRedoStack::Add(ICommand* command) | |
55 { | |
56 if (command == NULL) | |
57 { | |
58 throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer); | |
59 } | |
60 | |
61 Clear(current_); | |
62 | |
63 stack_.push_back(command); | |
64 current_ = stack_.end(); | |
65 } | |
66 | |
67 | |
68 void UndoRedoStack::Undo() | |
69 { | |
70 if (current_ != stack_.begin()) | |
71 { | |
72 --current_; | |
73 | |
74 assert(*current_ != NULL); | |
75 (*current_)->Undo(); | |
76 } | |
77 } | |
78 | |
79 void UndoRedoStack::Redo() | |
80 { | |
81 if (current_ != stack_.end()) | |
82 { | |
83 assert(*current_ != NULL); | |
84 (*current_)->Redo(); | |
85 | |
86 ++current_; | |
87 } | |
88 } | |
89 } |