annotate OrthancStone/Sources/Toolbox/UndoRedoStack.h @ 1836:5a6adbc20ace

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author Sebastien Jodogne <s.jodogne@gmail.com>
date Sat, 12 Jun 2021 13:43:42 +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 #pragma once
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24
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25 #include <boost/noncopyable.hpp>
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26 #include <list>
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29 namespace OrthancStone
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30 {
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31 class UndoRedoStack : public boost::noncopyable
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32 {
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33 public:
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34 class ICommand : public boost::noncopyable
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35 {
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36 public:
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37 virtual ~ICommand()
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38 {
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39 }
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40
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41 virtual void Undo() const = 0;
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42
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43 virtual void Redo() const = 0;
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44 };
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45
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46 private:
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47 typedef std::list<ICommand*> Stack;
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48
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49 Stack stack_;
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50 Stack::iterator current_;
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51
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52 void Clear(Stack::iterator from);
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54 public:
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55 UndoRedoStack();
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57 ~UndoRedoStack();
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59 void Add(ICommand* command);
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61 void Undo();
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62
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63 void Redo();
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64 };
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65 }