Mercurial > hg > orthanc-stone
annotate OrthancStone/Sources/Toolbox/UndoRedoStack.cpp @ 1871:7053b8a0aaec
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| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Tue, 11 Jan 2022 11:18:48 +0100 |
| parents | 3889ae96d2e9 |
| children | 07964689cb0b |
| rev | line source |
|---|---|
| 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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5 * Copyright (C) 2017-2022 Osimis S.A., Belgium |
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6 * Copyright (C) 2021-2022 Sebastien Jodogne, ICTEAM UCLouvain, Belgium |
| 408 | 7 * |
| 8 * This program is free software: you can redistribute it and/or | |
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9 * modify it under the terms of the GNU Lesser General Public License |
| 408 | 10 * as published by the Free Software Foundation, either version 3 of |
| 11 * the License, or (at your option) any later version. | |
| 12 * | |
| 13 * This program is distributed in the hope that it will be useful, but | |
| 14 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
|
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15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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16 * Lesser General Public License for more details. |
| 408 | 17 * |
|
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18 * You should have received a copy of the GNU Lesser General Public |
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19 * License along with this program. If not, see |
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20 * <http://www.gnu.org/licenses/>. |
| 408 | 21 **/ |
| 22 | |
| 23 | |
| 24 #include "UndoRedoStack.h" | |
| 25 | |
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26 #include <OrthancException.h> |
| 408 | 27 |
| 28 #include <cassert> | |
| 29 | |
| 30 namespace OrthancStone | |
| 31 { | |
| 32 void UndoRedoStack::Clear(UndoRedoStack::Stack::iterator from) | |
| 33 { | |
| 34 for (Stack::iterator it = from; it != stack_.end(); ++it) | |
| 35 { | |
| 36 assert(*it != NULL); | |
| 37 delete *it; | |
| 38 } | |
| 39 | |
| 40 stack_.erase(from, stack_.end()); | |
| 41 } | |
| 42 | |
| 43 | |
| 44 UndoRedoStack::UndoRedoStack() : | |
| 45 current_(stack_.end()) | |
| 46 { | |
| 47 } | |
| 48 | |
| 49 | |
| 50 UndoRedoStack::~UndoRedoStack() | |
| 51 { | |
| 52 Clear(stack_.begin()); | |
| 53 } | |
| 54 | |
| 55 | |
| 56 void UndoRedoStack::Add(ICommand* command) | |
| 57 { | |
| 58 if (command == NULL) | |
| 59 { | |
| 60 throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer); | |
| 61 } | |
| 62 | |
| 63 Clear(current_); | |
| 64 | |
| 65 stack_.push_back(command); | |
| 66 current_ = stack_.end(); | |
| 67 } | |
| 68 | |
| 69 | |
| 70 void UndoRedoStack::Undo() | |
| 71 { | |
| 72 if (current_ != stack_.begin()) | |
| 73 { | |
| 74 --current_; | |
| 75 | |
| 76 assert(*current_ != NULL); | |
| 77 (*current_)->Undo(); | |
| 78 } | |
| 79 } | |
| 80 | |
| 81 void UndoRedoStack::Redo() | |
| 82 { | |
| 83 if (current_ != stack_.end()) | |
| 84 { | |
| 85 assert(*current_ != NULL); | |
| 86 (*current_)->Redo(); | |
| 87 | |
| 88 ++current_; | |
| 89 } | |
| 90 } | |
| 91 } |