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annotate Samples/Common/RtViewer.h @ 1383:ab871499ed30

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SingleFrameViewer: refactored file locations + names to share files for RtViewer
author Benjamin Golinvaux <bgo@osimis.io>
date Mon, 27 Apr 2020 10:01:03 +0200
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children dfb48f0794b1
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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) 2017-2020 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 #include <Framework/Viewport/SdlViewport.h>
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22 #include <Framework/Loaders/GenericLoadersContext.h>
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23 #include <Framework/Messages/IObserver.h>
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24 #include <Framework/Messages/IMessageEmitter.h>
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25 #include <Framework/Oracle/OracleCommandExceptionMessage.h>
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26 #include <Framework/Scene2DViewport/ViewportController.h>
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27 #include <Framework/Volumes/DicomVolumeImage.h>
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28 #include <Framework/Oracle/ThreadedOracle.h>
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29 #include <Framework/Loaders/OrthancSeriesVolumeProgressiveLoader.h>
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30 #include <Framework/Loaders/OrthancMultiframeVolumeLoader.h>
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31 #include <Framework/Loaders/DicomStructureSetLoader.h>
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32
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33 #include <Framework/Messages/ObserverBase.h>
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34
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35 #include <boost/enable_shared_from_this.hpp>
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36 #include <boost/thread.hpp>
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37 #include <boost/noncopyable.hpp>
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38
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39 #include <SDL.h>
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40
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41 namespace OrthancStone
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42 {
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43 class OpenGLCompositor;
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44 class IVolumeSlicer;
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45 class ILayerStyleConfigurator;
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46 class DicomStructureSetLoader;
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47 class IOracle;
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48 class ThreadedOracle;
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49 class VolumeSceneLayerSource;
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50 class SdlOpenGLViewport;
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51
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52 enum RtViewerGuiTool
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53 {
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54 RtViewerGuiTool_Rotate = 0,
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55 RtViewerGuiTool_Pan,
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56 RtViewerGuiTool_Zoom,
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57 RtViewerGuiTool_LineMeasure,
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58 RtViewerGuiTool_CircleMeasure,
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59 RtViewerGuiTool_AngleMeasure,
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60 RtViewerGuiTool_EllipseMeasure,
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61 RtViewerGuiTool_LAST
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62 };
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63
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64 const char* MeasureToolToString(size_t i);
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65
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66 static const unsigned int FONT_SIZE_0 = 32;
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67 static const unsigned int FONT_SIZE_1 = 24;
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68
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69 class Scene2D;
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70 class UndoStack;
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71
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72 /**
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73 This application subclasses IMessageEmitter to use a mutex before forwarding Oracle messages (that
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74 can be sent from multiple threads)
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75 */
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76 class RtViewerApp : public ObserverBase<RtViewerApp>
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77 , public IMessageEmitter
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78 {
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79 public:
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80
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81
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82 void PrepareScene();
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83 void Run();
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84 void SetInfoDisplayMessage(std::string key, std::string value);
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85 void DisableTracker();
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86
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87 void HandleApplicationEvent(const SDL_Event& event);
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88
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89 /**
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90 This method is called when the scene transform changes. It allows to
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91 recompute the visual elements whose content depend upon the scene transform
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92 */
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93 void OnSceneTransformChanged(
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94 const ViewportController::SceneTransformChanged& message);
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95
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96 /**
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97 This method will ask the VolumeSceneLayerSource, that are responsible to
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98 generated 2D content based on a volume and a cutting plane, to regenerate
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99 it. This is required if the volume itself changes (during loading) or if
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100 the cutting plane is changed
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101 */
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102 void UpdateLayers();
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103
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104 void Refresh();
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105
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106 virtual void EmitMessage(boost::weak_ptr<IObserver> observer,
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107 const IMessage& message) ORTHANC_OVERRIDE
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108 {
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109 try
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110 {
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111 boost::unique_lock<boost::shared_mutex> lock(mutex_);
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112 oracleObservable_.EmitMessage(observer, message);
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113 }
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114 catch (Orthanc::OrthancException& e)
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115 {
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116 LOG(ERROR) << "Exception while emitting a message: " << e.What();
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117 throw;
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118 }
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119 }
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120
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121 static boost::shared_ptr<RtViewerApp> Create();
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122 void RegisterMessages();
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123
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124 protected:
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125 RtViewerApp();
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126
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127 private:
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128 #if 1
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129 // if threaded (not wasm)
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130 IObservable oracleObservable_;
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131 ThreadedOracle oracle_;
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132 boost::shared_mutex mutex_; // to serialize messages from the ThreadedOracle
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133 #endif
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134
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135 void SelectNextTool();
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136
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137 /**
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138 This returns a random point in the canvas part of the scene, but in
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139 scene coordinates
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140 */
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141 ScenePoint2D GetRandomPointInScene() const;
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142
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143 boost::shared_ptr<IFlexiblePointerTracker> TrackerHitTest(const PointerEvent& e);
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144
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145 boost::shared_ptr<IFlexiblePointerTracker> CreateSuitableTracker(
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146 const SDL_Event& event,
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147 const PointerEvent& e);
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148
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149 void TakeScreenshot(
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150 const std::string& target,
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151 unsigned int canvasWidth,
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152 unsigned int canvasHeight);
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153
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154 /**
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155 This adds the command at the top of the undo stack
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156 */
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157 //void Commit(boost::shared_ptr<TrackerCommand> cmd);
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158 void Undo();
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159 void Redo();
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160
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161
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162 void Handle(const DicomVolumeImage::GeometryReadyMessage& message);
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163 void Handle(const OracleCommandExceptionMessage& message);
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164
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165 // TODO: wire this
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166 void HandleCTLoaded(const OrthancSeriesVolumeProgressiveLoader::VolumeImageReadyInHighQuality& message);
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167 void HandleCTContentUpdated(const OrthancStone::DicomVolumeImage::ContentUpdatedMessage& message);
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168 void HandleDoseLoaded(const OrthancStone::DicomVolumeImage::ContentUpdatedMessage& message);
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169 void HandleStructuresReady(const OrthancStone::DicomStructureSetLoader::StructuresReady& message);
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170 void HandleStructuresUpdated(const OrthancStone::DicomStructureSetLoader::StructuresUpdated& message);
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171
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172 void SetCtVolume(
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173 int depth,
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174 const boost::shared_ptr<IVolumeSlicer>& volume,
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175 ILayerStyleConfigurator* style);
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176
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177 void SetDoseVolume(
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178 int depth,
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179 const boost::shared_ptr<IVolumeSlicer>& volume,
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180 ILayerStyleConfigurator* style);
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181
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182 void SetStructureSet(
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183 int depth,
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184 const boost::shared_ptr<DicomStructureSetLoader>& volume);
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185
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186 private:
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187 void DisplayFloatingCtrlInfoText(const PointerEvent& e);
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188 void DisplayInfoText();
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189 void HideInfoText();
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190 void RetrieveGeometry();
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191 void FitContent();
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192
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193 private:
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194 boost::shared_ptr<GenericLoadersContext> loadersContext_;
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195 boost::shared_ptr<VolumeSceneLayerSource> ctVolumeLayerSource_, doseVolumeLayerSource_, structLayerSource_;
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196 boost::shared_ptr<OrthancStone::IGeometryProvider> geometryProvider_;
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197 std::vector<OrthancStone::CoordinateSystem3D> planes_;
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198 size_t currentPlane_;
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199
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200 VolumeProjection projection_;
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201
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202 std::map<std::string, std::string> infoTextMap_;
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203 boost::shared_ptr<IFlexiblePointerTracker> activeTracker_;
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204
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205 static const int LAYER_POSITION = 150;
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206
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207 int TEXTURE_2x2_1_ZINDEX;
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208 int TEXTURE_1x1_ZINDEX;
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209 int TEXTURE_2x2_2_ZINDEX;
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210 int LINESET_1_ZINDEX;
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211 int LINESET_2_ZINDEX;
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212 int FLOATING_INFOTEXT_LAYER_ZINDEX;
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213 int FIXED_INFOTEXT_LAYER_ZINDEX;
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214
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215 RtViewerGuiTool currentTool_;
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216 boost::shared_ptr<UndoStack> undoStack_;
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217 boost::shared_ptr<SdlOpenGLViewport> viewport_;
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218 };
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219
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220 }
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221
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222
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223