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comparison OrthancStone/Sources/Scene2D/MagnifyingGlassTracker.h @ 1993:317a53d4fdc6

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added magnifying glass
author Sebastien Jodogne <s.jodogne@gmail.com>
date Mon, 31 Oct 2022 22:19:57 +0100
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children 2f242d231a22
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1992:237e0eb40f38 1993:317a53d4fdc6
1 /**
2 * Stone of Orthanc
3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
4 * Department, University Hospital of Liege, Belgium
5 * Copyright (C) 2017-2022 Osimis S.A., Belgium
6 * Copyright (C) 2021-2022 Sebastien Jodogne, ICTEAM UCLouvain, Belgium
7 *
8 * This program is free software: you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public License
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
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
17 *
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with this program. If not, see
20 * <http://www.gnu.org/licenses/>.
21 **/
22
23
24 #pragma once
25
26 #include "../Scene2DViewport/OneGesturePointerTracker.h"
27 #include "../Viewport/ViewportLocker.h"
28
29 #include <boost/weak_ptr.hpp>
30
31 namespace OrthancStone
32 {
33 class MagnifyingGlassTracker : public OneGesturePointerTracker
34 {
35 private:
36 boost::weak_ptr<IViewport> viewport_;
37 ScenePoint2D pivot_;
38 AffineTransform2D originalSceneToCanvas_;
39 AffineTransform2D originalCanvasToScene_;
40
41 void Update(ViewportLocker& locker,
42 const PointerEvent& event);
43
44 public:
45 MagnifyingGlassTracker(boost::weak_ptr<IViewport> viewport,
46 const PointerEvent& event);
47
48 virtual void PointerUp(const PointerEvent& event,
49 const Scene2D& scene) ORTHANC_OVERRIDE;
50
51 virtual void PointerMove(const PointerEvent& event,
52 const Scene2D& scene) ORTHANC_OVERRIDE;
53
54 virtual void Cancel(const Scene2D& scene) ORTHANC_OVERRIDE;
55 };
56 }