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1993
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1 /**
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2 * Stone of Orthanc
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3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
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4 * Department, University Hospital of Liege, Belgium
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5 * Copyright (C) 2017-2022 Osimis S.A., Belgium
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6 * Copyright (C) 2021-2022 Sebastien Jodogne, ICTEAM UCLouvain, Belgium
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7 *
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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
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10 * as published by the Free Software Foundation, either version 3 of
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11 * the License, or (at your option) any later version.
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12 *
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13 * This program is distributed in the hope that it will be useful, but
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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/>.
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21 **/
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22
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23
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24 #pragma once
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25
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26 #include "../Scene2DViewport/OneGesturePointerTracker.h"
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27 #include "../Viewport/ViewportLocker.h"
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28
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29 #include <boost/weak_ptr.hpp>
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30
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31 namespace OrthancStone
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32 {
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33 class MagnifyingGlassTracker : public OneGesturePointerTracker
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34 {
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35 private:
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36 boost::weak_ptr<IViewport> viewport_;
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37 ScenePoint2D pivot_;
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38 AffineTransform2D originalSceneToCanvas_;
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39 AffineTransform2D originalCanvasToScene_;
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40
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1994
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41 void Update(const ViewportLocker& locker,
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1993
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42 const PointerEvent& event);
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43
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44 public:
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45 MagnifyingGlassTracker(boost::weak_ptr<IViewport> viewport,
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46 const PointerEvent& event);
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47
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48 virtual void PointerUp(const PointerEvent& event,
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49 const Scene2D& scene) ORTHANC_OVERRIDE;
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50
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51 virtual void PointerMove(const PointerEvent& event,
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52 const Scene2D& scene) ORTHANC_OVERRIDE;
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53
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54 virtual void Cancel(const Scene2D& scene) ORTHANC_OVERRIDE;
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55 };
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56 }
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