Mercurial > hg > orthanc-stone

annotate Framework/Scene2DViewport/UndoStack.cpp @ 999:2d69b8bee484

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Added tests for Dicom structure set classes (loaders and utils)
author Benjamin Golinvaux <bgo@osimis.io>
date Fri, 20 Sep 2019 11:58:33 +0200
parents e3c56d4f863f
children ac88989817e3
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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<TrackerCommand> 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 }