Mercurial > hg > orthanc-stone

annotate Framework/Scene2DViewport/MeasureTools.h @ 700:059e1fd05fd6 refactor-viewport-controller

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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>
date Sun, 19 May 2019 16:26:17 +0200
parents 8b6adfb62a2f
children 28b9e3a54200
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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 <Framework/Scene2DViewport/PointerTypes.h>
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24 #include <Framework/Scene2DViewport/ViewportController.h>
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25
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26 #include <Framework/Scene2D/Scene2D.h>
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27 #include <Framework/Scene2D/ScenePoint2D.h>
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28 #include <Framework/Scene2D/PolylineSceneLayer.h>
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29 #include <Framework/Scene2D/TextSceneLayer.h>
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30
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31 #include <boost/shared_ptr.hpp>
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32 #include <boost/weak_ptr.hpp>
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33
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34 #include <vector>
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35 #include <cmath>
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36
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37 namespace OrthancStone
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38 {
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39 class MeasureTool : public IObserver
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40 {
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41 public:
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42 virtual ~MeasureTool();
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43
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44 /**
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45 Enabled tools are rendered in the scene.
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46 */
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47 void Enable();
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48
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49 /**
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50 Disabled tools are not rendered in the scene. This is useful to be able
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51 to use them as their own memento in command stacks (when a measure tool
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52 creation command has been undone, the measure remains alive in the
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53 command object but is disabled so that it can be redone later on easily)
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54 */
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55 void Disable();
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56
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57 /**
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58 This method is called when the scene transform changes. It allows to
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59 recompute the visual elements whose content depend upon the scene transform
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60 */
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61 void OnSceneTransformChanged(
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62 const ViewportController::SceneTransformChanged& message);
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63
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64 protected:
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65 MeasureTool(MessageBroker& broker, ViewportControllerWPtr controllerW);
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66
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67 /**
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68 This is the meat of the tool: this method must [create (if needed) and]
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69 update the layers and their data according to the measure tool kind and
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70 current state. This is repeatedly called during user interaction
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71 */
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72 virtual void RefreshScene() = 0;
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73
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74 ViewportControllerPtr GetController();
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75 Scene2DPtr GetScene();
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76
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77 /**
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78 enabled_ is not accessible by subclasses because there is a state machine
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79 that we do not wanna mess with
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80 */
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81 bool IsEnabled() const;
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82
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83 private:
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84 ViewportControllerWPtr controllerW_;
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85 bool enabled_;
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86 };
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87 }
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88
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89
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90 extern void TrackerSample_SetInfoDisplayMessage(
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91 std::string key, std::string value);