Mercurial > hg > orthanc-stone
annotate Framework/Scene2DViewport/ViewportController.h @ 700:059e1fd05fd6 refactor-viewport-controller
Introduced the ViewportController that sits between the application and the
Scene2D to handle the trackers and measuring tools. This is a work in progress.
The Scene2D is no longer an observable. Message sending is managed by the
ViewportController.
Move some refs to shared and weak to prevent lifetime issues.
author | Benjamin Golinvaux <bgo@osimis.io> |
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date | Sun, 19 May 2019 16:26:17 +0200 |
parents | 8b6adfb62a2f |
children | af0aa0c149fa |
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698
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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) 2017-2019 Osimis S.A., Belgium |
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6 * |
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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 Affero General Public License |
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9 * as published by the Free Software Foundation, either version 3 of |
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10 * the License, or (at your option) any later version. |
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11 * |
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12 * This program is distributed in the hope that it will be useful, but |
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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 * Affero 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 Affero General Public License |
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18 * along with this program. If not, see <http://www.gnu.org/licenses/>. |
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19 **/ |
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20 |
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21 #pragma once |
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22 |
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23 #include "PointerTypes.h" |
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24 |
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25 #include <Framework/Scene2D/Scene2D.h> |
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26 #include <Framework/Scene2D/PointerEvent.h> |
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27 #include <Framework/Scene2DViewport/IFlexiblePointerTracker.h> |
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28 |
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29 namespace OrthancStone |
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30 { |
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31 /** |
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32 This object is responsible for hosting a scene, responding to messages from |
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33 the model and updating the scene accordingly. |
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34 |
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35 It contains the list of active measuring tools as well as the stack |
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36 where measuring tool commands are stored. |
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37 |
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38 The active tracker is also stored in the viewport controller. |
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39 |
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40 Each canvas or other GUI area where we want to display a 2D image, either |
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41 directly or through slicing must be assigned a ViewportController. |
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42 */ |
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43 class ViewportController : public IObservable |
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44 { |
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45 public: |
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46 ORTHANC_STONE_DEFINE_ORIGIN_MESSAGE(__FILE__, __LINE__, \ |
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47 SceneTransformChanged, ViewportController); |
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48 |
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49 ViewportController(MessageBroker& broker); |
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50 |
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51 Scene2DPtr GetScene(); |
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52 |
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53 /** |
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54 This method is called by the GUI system and should update/delete the |
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55 current tracker |
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56 */ |
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57 bool HandlePointerEvent(PointerEvent e); |
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58 |
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59 /** |
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60 This method returns the list of measure tools containing the supplied point |
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61 (in scene coords). A tracker can then be requested from the chosen |
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62 measure tool, if needed |
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63 */ |
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64 std::vector<MeasureToolPtr> HitTestMeasureTools(ScenePoint2D p); |
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65 |
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66 /** |
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67 With this method, the object takes ownership of the supplied tracker and |
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68 updates it according to user interaction |
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69 */ |
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70 void SetActiveTracker(FlexiblePointerTrackerPtr tracker); |
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71 |
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72 /** Forwarded to the underlying scene */ |
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73 const AffineTransform2D& GetCanvasToSceneTransform() const; |
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74 |
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75 /** Forwarded to the underlying scene */ |
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76 const AffineTransform2D& GetSceneToCanvasTransform() const; |
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77 |
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78 /** Forwarded to the underlying scene, and broadcasted to the observers */ |
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79 void SetSceneToCanvasTransform(const AffineTransform2D& transform); |
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80 |
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81 |
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82 private: |
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83 Scene2DPtr scene_; |
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84 FlexiblePointerTrackerPtr tracker_; |
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85 }; |
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86 } |