annotate OrthancStone/Sources/Toolbox/UndoRedoStack.cpp @ 1775:fca942f4b4a7

fix conversion from voxel centers to texture borders
author Sebastien Jodogne <s.jodogne@gmail.com>
date Wed, 12 May 2021 19:57:50 +0200
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1 /**
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2 * Stone of Orthanc
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3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
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4 * Department, University Hospital of Liege, Belgium
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5 * Copyright (C) 2017-2021 Osimis S.A., Belgium
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6 *
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7 * This program is free software: you can redistribute it and/or
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8 * modify it under the terms of the GNU Lesser General Public License
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9 * as published by the Free Software Foundation, either version 3 of
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10 * the License, or (at your option) any later version.
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11 *
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12 * This program is distributed in the hope that it will be useful, but
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13 * WITHOUT ANY WARRANTY; without even the implied warranty of
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14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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15 * Lesser General Public License for more details.
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16 *
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17 * You should have received a copy of the GNU Lesser General Public
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18 * License along with this program. If not, see
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19 * <http://www.gnu.org/licenses/>.
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20 **/
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21
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22
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23 #include "UndoRedoStack.h"
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25 #include <OrthancException.h>
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27 #include <cassert>
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28
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29 namespace OrthancStone
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30 {
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31 void UndoRedoStack::Clear(UndoRedoStack::Stack::iterator from)
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32 {
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33 for (Stack::iterator it = from; it != stack_.end(); ++it)
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34 {
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35 assert(*it != NULL);
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36 delete *it;
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37 }
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38
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39 stack_.erase(from, stack_.end());
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40 }
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42
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43 UndoRedoStack::UndoRedoStack() :
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44 current_(stack_.end())
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45 {
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46 }
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48
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49 UndoRedoStack::~UndoRedoStack()
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50 {
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51 Clear(stack_.begin());
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52 }
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53
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55 void UndoRedoStack::Add(ICommand* command)
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56 {
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57 if (command == NULL)
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58 {
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59 throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer);
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60 }
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61
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62 Clear(current_);
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63
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64 stack_.push_back(command);
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65 current_ = stack_.end();
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66 }
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68
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69 void UndoRedoStack::Undo()
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70 {
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71 if (current_ != stack_.begin())
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72 {
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73 --current_;
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74
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75 assert(*current_ != NULL);
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76 (*current_)->Undo();
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77 }
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78 }
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79
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80 void UndoRedoStack::Redo()
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81 {
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82 if (current_ != stack_.end())
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83 {
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84 assert(*current_ != NULL);
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85 (*current_)->Redo();
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86
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87 ++current_;
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88 }
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89 }
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90 }