Mercurial > hg > orthanc-stone
annotate OrthancStone/Sources/Scene2DViewport/UndoStack.h @ 1798:41f3872bd7d2
create angle tool and delete measure tool
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Thu, 20 May 2021 11:10:14 +0200 |
parents | 462d7a0e064e |
children | 3889ae96d2e9 |
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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 #pragma once |
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23 |
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24 #include <boost/noncopyable.hpp> |
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25 #include <boost/shared_ptr.hpp> |
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26 |
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27 #include <vector> |
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28 |
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29 namespace OrthancStone |
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30 { |
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31 class MeasureCommand; |
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32 |
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33 class UndoStack : public boost::noncopyable |
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34 { |
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35 public: |
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36 UndoStack(); |
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37 |
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38 /** |
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39 Stores a command : |
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40 - this first trims the undo stack to keep the first numAppliedCommands_ |
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41 - then it adds the supplied command at the top of the undo stack |
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42 |
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43 In other words, when a new command is pushed, all the undone (and not |
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44 redone) commands are removed. |
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45 */ |
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46 void PushCommand(boost::shared_ptr<MeasureCommand> command); |
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47 |
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48 /** |
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49 Undoes the command at the top of the undo stack, or throws if there is no |
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50 command to undo. |
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51 You can check "CanUndo" first to protect against extraneous redo. |
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52 */ |
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53 void Undo(); |
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54 |
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55 /** |
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56 Redoes the command that is just above the last applied command in the undo |
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57 stack or throws if there is no command to redo. |
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58 You can check "CanRedo" first to protect against extraneous redo. |
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59 */ |
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60 void Redo(); |
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61 |
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62 /** selfexpl */ |
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63 bool CanUndo() const; |
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64 |
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65 /** selfexpl */ |
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66 bool CanRedo() const; |
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67 |
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68 private: |
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69 std::vector<boost::shared_ptr<MeasureCommand> > commandStack_; |
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70 |
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71 /** |
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72 This is always between >= 0 and <= undoStack_.size() and gives the |
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73 position where the controller is in the undo stack. |
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74 - If numAppliedCommands_ > 0, one can undo |
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75 - If numAppliedCommands_ < numAppliedCommands_.size(), one can redo |
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76 */ |
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77 size_t numAppliedCommands_; |
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78 }; |
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79 } |