Mercurial > hg > orthanc-stone
annotate OrthancStone/Sources/Scene2D/RotateSceneTracker.cpp @ 1571:85e117739eca
cppcheck
| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Mon, 21 Sep 2020 17:46:39 +0200 |
| parents | 244ad1e4e76a |
| children | 8563ea5d8ae4 |
| rev | line source |
|---|---|
| 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) 2017-2020 Osimis S.A., Belgium |
| 596 | 6 * |
| 7 * This program is free software: you can redistribute it and/or | |
| 8 * modify it under the terms of the GNU Affero General Public License | |
| 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 | |
| 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 15 * Affero General Public License for more details. | |
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16 * |
| 596 | 17 * You should have received a copy of the GNU Affero General Public License |
| 18 * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
| 19 **/ | |
| 20 | |
| 21 #include "RotateSceneTracker.h" | |
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22 #include "../Scene2DViewport/ViewportController.h" |
| 596 | 23 |
| 24 namespace OrthancStone | |
| 25 { | |
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26 RotateSceneTracker::RotateSceneTracker(boost::shared_ptr<IViewport> viewport, |
| 1571 | 27 const PointerEvent& event) : |
| 28 OneGesturePointerTracker(viewport), | |
| 29 click_(event.GetMainPosition()), | |
| 30 aligner_(viewport, click_), | |
| 31 referenceAngle_(0), | |
| 32 isFirst_(true) | |
| 596 | 33 { |
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34 std::unique_ptr<IViewport::ILock> lock(viewport_->Lock()); |
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35 originalSceneToCanvas_ = lock->GetController().GetSceneToCanvasTransform(); |
| 596 | 36 } |
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37 |
| 1571 | 38 |
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39 void RotateSceneTracker::PointerMove(const PointerEvent& event) |
| 596 | 40 { |
| 41 ScenePoint2D p = event.GetMainPosition(); | |
| 42 double dx = p.GetX() - click_.GetX(); | |
| 43 double dy = p.GetY() - click_.GetY(); | |
| 44 | |
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45 if (std::abs(dx) > 5.0 || |
| 596 | 46 std::abs(dy) > 5.0) |
| 47 { | |
| 48 double a = atan2(dy, dx); | |
| 49 | |
| 50 if (isFirst_) | |
| 51 { | |
| 52 referenceAngle_ = a; | |
| 53 isFirst_ = false; | |
| 54 } | |
| 55 | |
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56 std::unique_ptr<IViewport::ILock> lock(viewport_->Lock()); |
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57 |
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58 lock->GetController().SetSceneToCanvasTransform( |
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59 AffineTransform2D::Combine( |
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60 AffineTransform2D::CreateRotation(a - referenceAngle_), |
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61 originalSceneToCanvas_)); |
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62 aligner_.Apply(); |
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63 lock->Invalidate(); |
| 596 | 64 } |
| 65 } | |
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66 |
| 1571 | 67 |
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68 void RotateSceneTracker::Cancel() |
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69 { |
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70 // See remark above |
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71 std::unique_ptr<IViewport::ILock> lock(viewport_->Lock()); |
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72 lock->GetController().SetSceneToCanvasTransform(originalSceneToCanvas_); |
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73 lock->Invalidate(); |
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74 } |
| 596 | 75 } |