annotate Framework/Toolbox/UndoRedoStack.h @ 1221:e2435a524029

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author Alain Mazy <alain@mazy.be>
date Sat, 07 Dec 2019 17:47:35 +0100
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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
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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 <list>
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26
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28 namespace OrthancStone
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29 {
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30 class UndoRedoStack : public boost::noncopyable
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31 {
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32 public:
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33 class ICommand : public boost::noncopyable
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34 {
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35 public:
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36 virtual ~ICommand()
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37 {
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38 }
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39
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40 virtual void Undo() const = 0;
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41
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42 virtual void Redo() const = 0;
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43 };
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44
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45 private:
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46 typedef std::list<ICommand*> Stack;
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47
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48 Stack stack_;
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49 Stack::iterator current_;
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50
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51 void Clear(Stack::iterator from);
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52
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53 public:
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54 UndoRedoStack();
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55
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56 ~UndoRedoStack();
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57
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58 void Add(ICommand* command);
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59
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60 void Undo();
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61
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62 void Redo();
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63 };
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64 }