Mercurial > hg > orthanc-stone
annotate OrthancStone/Sources/Scene2D/RotateSceneTracker.cpp @ 2129:169e2e586ef7 StoneWebViewer-2.2
closing StoneWebViewer-2.2
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Thu, 30 May 2024 17:08:21 +0200 |
parents | 9ac2a65d4172 |
children | 3889ae96d2e9 |
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 |
596 | 6 * |
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 |
596 | 9 * as published by the Free Software Foundation, either version 3 of |
10 * the License, or (at your option) any later version. | |
11 * | |
12 * This program is distributed in the hope that it will be useful, but | |
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/>. |
596 | 20 **/ |
21 | |
22 #include "RotateSceneTracker.h" | |
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23 #include "../Scene2DViewport/ViewportController.h" |
596 | 24 |
25 namespace OrthancStone | |
26 { | |
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27 RotateSceneTracker::RotateSceneTracker(boost::weak_ptr<IViewport> viewport, |
1571 | 28 const PointerEvent& event) : |
29 OneGesturePointerTracker(viewport), | |
30 click_(event.GetMainPosition()), | |
31 aligner_(viewport, click_), | |
32 referenceAngle_(0), | |
33 isFirst_(true) | |
596 | 34 { |
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35 std::unique_ptr<IViewport::ILock> lock(GetViewportLock()); |
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36 originalSceneToCanvas_ = lock->GetController().GetSceneToCanvasTransform(); |
596 | 37 } |
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38 |
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40 void RotateSceneTracker::PointerMove(const PointerEvent& event) |
596 | 41 { |
42 ScenePoint2D p = event.GetMainPosition(); | |
43 double dx = p.GetX() - click_.GetX(); | |
44 double dy = p.GetY() - click_.GetY(); | |
45 | |
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46 if (std::abs(dx) > 5.0 || |
596 | 47 std::abs(dy) > 5.0) |
48 { | |
49 double a = atan2(dy, dx); | |
50 | |
51 if (isFirst_) | |
52 { | |
53 referenceAngle_ = a; | |
54 isFirst_ = false; | |
55 } | |
56 | |
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57 std::unique_ptr<IViewport::ILock> lock(GetViewportLock()); |
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58 |
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59 lock->GetController().SetSceneToCanvasTransform( |
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60 AffineTransform2D::Combine( |
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61 AffineTransform2D::CreateRotation(a - referenceAngle_), |
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62 originalSceneToCanvas_)); |
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63 aligner_.Apply(); |
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64 lock->Invalidate(); |
596 | 65 } |
66 } | |
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67 |
1571 | 68 |
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69 void RotateSceneTracker::Cancel() |
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70 { |
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71 // See remark above |
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72 std::unique_ptr<IViewport::ILock> lock(GetViewportLock()); |
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73 lock->GetController().SetSceneToCanvasTransform(originalSceneToCanvas_); |
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74 lock->Invalidate(); |
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75 } |
596 | 76 } |