Mercurial > hg > orthanc-stone
annotate Framework/Scene2DViewport/UndoStack.cpp @ 1036:d7d3227c11a9
merge
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Mon, 07 Oct 2019 15:26:29 +0200 |
parents | ac88989817e3 |
children | 2d8ab34c8c91 |
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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) 2017-2019 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 Affero 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 * Affero 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 Affero General Public License |
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18 * along with this program. If not, see <http://www.gnu.org/licenses/>. |
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19 **/ |
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20 |
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21 #include "UndoStack.h" |
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22 |
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23 #include "MeasureCommands.h" |
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24 |
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25 #include "../StoneException.h" |
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26 |
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27 namespace OrthancStone |
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28 { |
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29 UndoStack::UndoStack() : numAppliedCommands_(0) |
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30 {} |
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31 |
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32 void UndoStack::PushCommand(boost::shared_ptr<MeasureCommand> command) |
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33 { |
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34 commandStack_.erase( |
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35 commandStack_.begin() + numAppliedCommands_, |
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36 commandStack_.end()); |
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37 |
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38 ORTHANC_ASSERT(std::find(commandStack_.begin(), commandStack_.end(), command) |
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39 == commandStack_.end(), "Duplicate command"); |
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40 commandStack_.push_back(command); |
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41 numAppliedCommands_++; |
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42 } |
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43 |
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44 void UndoStack::Undo() |
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45 { |
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46 ORTHANC_ASSERT(CanUndo(), ""); |
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47 commandStack_[numAppliedCommands_ - 1]->Undo(); |
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48 numAppliedCommands_--; |
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49 } |
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50 |
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51 void UndoStack::Redo() |
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52 { |
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53 ORTHANC_ASSERT(CanRedo(), ""); |
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54 commandStack_[numAppliedCommands_]->Redo(); |
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55 numAppliedCommands_++; |
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56 } |
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57 |
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58 bool UndoStack::CanUndo() const |
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59 { |
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60 return numAppliedCommands_ > 0; |
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61 } |
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62 |
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63 bool UndoStack::CanRedo() const |
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64 { |
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65 return numAppliedCommands_ < commandStack_.size(); |
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66 } |
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67 |
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68 } |