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annotate Applications/Samples/Sdl/SingleFrameViewer/SdlSimpleViewerApplication.h @ 1891:3716d72161d2

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reorganization
author Sebastien Jodogne <s.jodogne@gmail.com>
date Wed, 19 Jan 2022 12:32:15 +0100
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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 Affero 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 * Affero 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 Affero General Public License
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19 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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20 **/
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21
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22
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23 #pragma once
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24
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25 #include "../../../../OrthancStone/Sources/Loaders/DicomResourcesLoader.h"
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26 #include "../../../../OrthancStone/Sources/Loaders/ILoadersContext.h"
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27 #include "../../../../OrthancStone/Sources/Loaders/SeriesFramesLoader.h"
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28 #include "../../../../OrthancStone/Sources/Loaders/SeriesThumbnailsLoader.h"
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29 #include "../../../../OrthancStone/Sources/Scene2DViewport/ViewportController.h"
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30 #include "../../../../OrthancStone/Sources/Viewport/IViewport.h"
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31
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32 #include <Compatibility.h> // For std::unique_ptr<>
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33
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34 #include <boost/make_shared.hpp>
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35
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36
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37 using OrthancStone::ILoadersContext;
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38 using OrthancStone::ObserverBase;
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39 using OrthancStone::IViewport;
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40 using OrthancStone::DicomResourcesLoader;
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41 using OrthancStone::SeriesFramesLoader;
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42 using OrthancStone::TextureBaseSceneLayer;
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43 using OrthancStone::DicomSource;
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44 using OrthancStone::SeriesThumbnailsLoader;
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45 using OrthancStone::LoadedDicomResources;
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46 using OrthancStone::SeriesThumbnailType;
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47 using OrthancStone::OracleScheduler;
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48 using OrthancStone::OrthancRestApiCommand;
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49 using OrthancStone::OracleScheduler;
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50 using OrthancStone::OracleScheduler;
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51 using OrthancStone::OracleScheduler;
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52
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53
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54 class SdlSimpleViewerApplication : public ObserverBase<SdlSimpleViewerApplication>
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55 {
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56
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57 public:
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58 static boost::shared_ptr<SdlSimpleViewerApplication> Create(ILoadersContext& context, boost::shared_ptr<IViewport> viewport)
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59 {
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60 boost::shared_ptr<SdlSimpleViewerApplication> application(new SdlSimpleViewerApplication(context, viewport));
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61
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62 {
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63 std::unique_ptr<ILoadersContext::ILock> lock(context.Lock());
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64 application->dicomLoader_ = DicomResourcesLoader::Create(*lock);
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65 }
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66
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67 application->Register<DicomResourcesLoader::SuccessMessage>(*application->dicomLoader_, &SdlSimpleViewerApplication::Handle);
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68
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69 return application;
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70 }
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71
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72 void LoadOrthancFrame(const DicomSource& source, const std::string& instanceId, unsigned int frame)
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73 {
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74 std::unique_ptr<ILoadersContext::ILock> lock(context_.Lock());
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75
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76 dicomLoader_->ScheduleLoadOrthancResource(boost::make_shared<LoadedDicomResources>(Orthanc::DICOM_TAG_SOP_INSTANCE_UID),
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77 0, source, Orthanc::ResourceType_Instance, instanceId,
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78 new Orthanc::SingleValueObject<unsigned int>(frame));
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79 }
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80
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81 #if 0
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82 void LoadDicomWebFrame(const DicomSource& source,
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83 const std::string& studyInstanceUid,
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84 const std::string& seriesInstanceUid,
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85 const std::string& sopInstanceUid,
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86 unsigned int frame)
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87 {
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88 std::unique_ptr<ILoadersContext::ILock> lock(context_.Lock());
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89
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90 // We first must load the "/metadata" to know the number of frames
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91 dicomLoader_->ScheduleGetDicomWeb(
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92 boost::make_shared<LoadedDicomResources>(Orthanc::DICOM_TAG_SOP_INSTANCE_UID), 0, source,
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93 "/studies/" + studyInstanceUid + "/series/" + seriesInstanceUid + "/instances/" + sopInstanceUid + "/metadata",
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94 new Orthanc::SingleValueObject<unsigned int>(frame));
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95 }
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96 #endif
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97
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98 void FitContent()
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99 {
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100 std::unique_ptr<IViewport::ILock> lock(viewport_->Lock());
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101 lock->GetCompositor().FitContent(lock->GetController().GetScene());
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102 lock->Invalidate();
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103 }
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104
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105 OrthancStone::Units GetUnits() const
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106 {
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107 return units_;
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108 }
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109
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110 private:
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111 ILoadersContext& context_;
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112 boost::shared_ptr<IViewport> viewport_;
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113 boost::shared_ptr<DicomResourcesLoader> dicomLoader_;
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114 boost::shared_ptr<SeriesFramesLoader> framesLoader_;
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115 OrthancStone::Units units_;
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116
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117 SdlSimpleViewerApplication(ILoadersContext& context,
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118 boost::shared_ptr<IViewport> viewport) :
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119 context_(context),
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120 viewport_(viewport),
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121 units_(OrthancStone::Units_Pixels)
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122 {
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123 }
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124
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125 void Handle(const SeriesFramesLoader::FrameLoadedMessage& message)
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126 {
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127 LOG(INFO) << "Frame decoded! "
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128 << message.GetImage().GetWidth() << "x" << message.GetImage().GetHeight()
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129 << " " << Orthanc::EnumerationToString(message.GetImage().GetFormat());
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130
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131 std::unique_ptr<TextureBaseSceneLayer> layer(
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132 message.GetInstanceParameters().CreateTexture(message.GetImage()));
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133 layer->SetLinearInterpolation(true);
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134 layer->SetPixelSpacing(message.GetInstanceParameters().GetPixelSpacingX(),
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135 message.GetInstanceParameters().GetPixelSpacingY());
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136
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137 {
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138 std::unique_ptr<IViewport::ILock> lock(viewport_->Lock());
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139 lock->GetController().GetScene().SetLayer(0, layer.release());
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140 lock->GetCompositor().FitContent(lock->GetController().GetScene());
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141 lock->Invalidate();
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142 }
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143 }
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144
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145 void Handle(const DicomResourcesLoader::SuccessMessage& message)
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146 {
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147 if (message.GetResources()->GetSize() != 1)
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148 {
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149 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError);
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150 }
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151
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152 OrthancStone::DicomInstanceParameters parameters(message.GetResources()->GetResource(0));
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153 if (parameters.HasPixelSpacing())
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154 {
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155 /**
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156 * TODO - Ultrasound (US) images store an equivalent to
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157 * "PixelSpacing" in the "SequenceOfUltrasoundRegions"
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158 * (0018,6011) sequence, cf. tags "PhysicalDeltaX" (0018,602c)
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159 * and "PhysicalDeltaY" (0018,602e) => This would require
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160 * parsing "message.GetResources()->GetSourceJson(0)"
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161 * => cf. "DicomInstanceParameters::EnrichUsingDicomWeb()"
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162 **/
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163
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164 // std::cout << message.GetResources()->GetSourceJson(0).toStyledString();
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165
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166 LOG(INFO) << "Using millimeters units, as the DICOM instance contains the PixelSpacing tag";
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167 units_ = OrthancStone::Units_Millimeters;
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168 }
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169 else
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170 {
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171 LOG(INFO) << "Using pixels units, as the DICOM instance does *not* contain the PixelSpacing tag";
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172 }
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173
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174 //message.GetResources()->GetResource(0).Print(stdout);
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175
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176 {
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177 std::unique_ptr<ILoadersContext::ILock> lock(context_.Lock());
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178 SeriesFramesLoader::Factory f(*message.GetResources());
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179
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180 framesLoader_ = boost::dynamic_pointer_cast<SeriesFramesLoader>(
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181 f.Create(*lock));
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182
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183 Register<SeriesFramesLoader::FrameLoadedMessage>(
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184 *framesLoader_, &SdlSimpleViewerApplication::Handle);
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185
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186 assert(message.HasUserPayload());
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187
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188 const Orthanc::SingleValueObject<unsigned int>& payload =
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189 dynamic_cast<const Orthanc::SingleValueObject<unsigned int>&>(
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190 message.GetUserPayload());
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191
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192 LOG(INFO) << "Loading pixel data of frame: " << payload.GetValue();
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193 framesLoader_->ScheduleLoadFrame(
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194 0, message.GetDicomSource(), payload.GetValue(),
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195 message.GetDicomSource().GetQualityCount() - 1 /* download best quality available */,
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196 NULL);
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197 }
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198 }
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199
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200 };
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201