Mercurial > hg > orthanc-stone
annotate Framework/Scene2D/PanSceneTracker.cpp @ 920:5ca418d6579e refactor-viewport-controller
Close branch refactor-viewport-controller.
author | Alain Mazy <am@osimis.io> |
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date | Fri, 19 Jul 2019 14:15:49 +0000 |
parents | 059e1fd05fd6 |
children | c0fcb2757b0a |
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 | |
5 * Copyright (C) 2017-2019 Osimis S.A., Belgium | |
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. | |
16 * | |
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 | |
22 #include "PanSceneTracker.h" | |
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23 #include <Framework/Scene2DViewport/ViewportController.h> |
596 | 24 |
25 namespace OrthancStone | |
26 { | |
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27 PanSceneTracker::PanSceneTracker(ViewportControllerWPtr controllerW, |
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28 const PointerEvent& event) |
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29 : OneGesturePointerTracker(controllerW) |
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30 , originalSceneToCanvas_(GetController()->GetSceneToCanvasTransform()) |
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31 , originalCanvasToScene_(GetController()->GetCanvasToSceneTransform()) |
596 | 32 { |
33 pivot_ = event.GetMainPosition().Apply(originalCanvasToScene_); | |
34 } | |
35 | |
36 | |
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37 void PanSceneTracker::PointerMove(const PointerEvent& event) |
596 | 38 { |
39 ScenePoint2D p = event.GetMainPosition().Apply(originalCanvasToScene_); | |
40 | |
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41 GetController()->SetSceneToCanvasTransform( |
596 | 42 AffineTransform2D::Combine( |
43 originalSceneToCanvas_, | |
44 AffineTransform2D::CreateOffset(p.GetX() - pivot_.GetX(), | |
45 p.GetY() - pivot_.GetY()))); | |
46 } | |
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47 |
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48 void PanSceneTracker::Cancel() |
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49 { |
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50 GetController()->SetSceneToCanvasTransform(originalSceneToCanvas_); |
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51 } |
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52 |
596 | 53 } |