Mercurial > hg > orthanc-stone

annotate OrthancStone/Sources/Viewport/DefaultViewportInteractor.cpp @ 1973:596f4752fa42

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added ViewportLocker
author Sebastien Jodogne <s.jodogne@gmail.com>
date Fri, 28 Oct 2022 16:23:18 +0200
parents a7a77488ddb1
children 317a53d4fdc6
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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
1871
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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 #include "DefaultViewportInteractor.h"
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24
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25 #include "../Scene2D/GrayscaleWindowingSceneTracker.h"
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26 #include "../Scene2D/PanSceneTracker.h"
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27 #include "../Scene2D/RotateSceneTracker.h"
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28 #include "../Scene2D/ZoomSceneTracker.h"
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29 #include "../Scene2DViewport/ViewportController.h"
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30
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31 #include <OrthancException.h>
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32
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33 namespace OrthancStone
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34 {
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35 IFlexiblePointerTracker* DefaultViewportInteractor::CreateTrackerInternal(
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36 boost::weak_ptr<IViewport> viewport,
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37 MouseAction action,
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38 const PointerEvent& event,
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39 unsigned int viewportWidth,
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40 unsigned int viewportHeight)
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41 {
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42 switch (action)
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43 {
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44 case MouseAction_None:
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45 return NULL;
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46
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47 case MouseAction_Rotate:
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48 return new RotateSceneTracker(viewport, event);
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49
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50 case MouseAction_GrayscaleWindowing:
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51 {
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52 boost::shared_ptr<IViewport> v(viewport.lock());
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53 if (v == NULL)
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54 {
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55 return NULL;
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56 }
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57 else
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58 {
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59 std::unique_ptr<IViewport::ILock> lock(v->Lock());
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60 if (lock->GetController().GetScene().HasLayer(windowingLayer_) &&
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61 lock->GetController().GetScene().GetLayer(windowingLayer_).GetType() == ISceneLayer::Type_FloatTexture)
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62 {
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63 return new GrayscaleWindowingSceneTracker(
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64 viewport, windowingLayer_, event, viewportWidth, viewportHeight);
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65 }
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66 else
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67 {
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68 // Don't create the tracker if the layer is not a float texture
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69 return NULL;
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70 }
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71 }
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72 }
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73
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74 case MouseAction_Pan:
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75 return new PanSceneTracker(viewport, event);
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76
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77 case MouseAction_Zoom:
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78 return new ZoomSceneTracker(viewport, event, viewportHeight);
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79
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80 default:
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81 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange);
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82 }
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83 }
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84
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85
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86 IFlexiblePointerTracker* DefaultViewportInteractor::CreateTracker(
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87 boost::weak_ptr<IViewport> viewport,
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88 const PointerEvent& event,
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89 unsigned int viewportWidth,
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90 unsigned int viewportHeight)
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91 {
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92 MouseAction action;
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93
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94 switch (event.GetMouseButton())
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95 {
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96 case MouseButton_Left:
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97 action = leftButtonAction_;
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98 break;
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99
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100 case MouseButton_Middle:
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101 action = middleButtonAction_;
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102 break;
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103
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104 case MouseButton_Right:
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105 action = rightButtonAction_;
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106 break;
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107
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108 default:
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109 return NULL;
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110 }
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111
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112 return CreateTrackerInternal(viewport, action, event, viewportWidth, viewportHeight);
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113 }
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114
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115
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116 void DefaultViewportInteractor::HandleMouseHover(IViewport& viewport,
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117 const PointerEvent& event)
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118 {
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119 // "HasMouseOver()" returns "false"
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120 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError);
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121 }
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122 }