Mercurial > hg > orthanc-stone
annotate OrthancStone/Sources/Scene2D/Internals/FixedPointAligner.h @ 1870:3889ae96d2e9
added copyright UCLouvain
| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Tue, 11 Jan 2022 11:04:09 +0100 |
| parents | 9ac2a65d4172 |
| children | 7053b8a0aaec |
| rev | line source |
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| 596 | 1 /** |
| 2 * Stone of Orthanc | |
| 3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics | |
| 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 * Copyright (C) 2021-2021 Sebastien Jodogne, ICTEAM UCLouvain, Belgium |
| 596 | 7 * |
| 8 * This program is free software: you can redistribute it and/or | |
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9 * modify it under the terms of the GNU Lesser General Public License |
| 596 | 10 * as published by the Free Software Foundation, either version 3 of |
| 11 * the License, or (at your option) any later version. | |
| 12 * | |
| 13 * This program is distributed in the hope that it will be useful, but | |
| 14 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
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15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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16 * Lesser General Public License for more details. |
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17 * |
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18 * You should have received a copy of the GNU Lesser General Public |
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19 * License along with this program. If not, see |
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20 * <http://www.gnu.org/licenses/>. |
| 596 | 21 **/ |
| 22 | |
| 23 #pragma once | |
| 24 | |
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25 #include "../../Scene2DViewport/PredeclaredTypes.h" |
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26 #include "../../Scene2D/ScenePoint2D.h" |
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27 #include "../../Viewport/IViewport.h" |
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28 |
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29 #include <boost/weak_ptr.hpp> |
| 596 | 30 |
| 31 namespace OrthancStone | |
| 32 { | |
| 33 namespace Internals | |
| 34 { | |
| 35 // During a mouse event that modifies the view of a scene, keeps | |
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36 // one point (the pivot) at a fixed position on the canvas |
| 596 | 37 class FixedPointAligner : public boost::noncopyable |
| 38 { | |
| 39 private: | |
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40 boost::weak_ptr<IViewport> viewport_; |
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41 ScenePoint2D pivot_; |
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42 ScenePoint2D canvas_; |
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43 |
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44 /** |
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45 This will return a scoped lock to the viewport. |
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46 If the viewport does not exist anymore, then nullptr is returned. |
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47 */ |
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48 IViewport::ILock* GetViewportLock(); |
| 596 | 49 |
| 50 public: | |
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51 FixedPointAligner(boost::weak_ptr<IViewport> viewport, |
| 617 | 52 const ScenePoint2D& p); |
| 596 | 53 |
| 54 void Apply(); | |
| 55 }; | |
| 56 } | |
| 57 } |