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annotate Applications/Samples/SingleFrameApplication.h @ 334:c34784e5f299 am-2

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compatibility fixes
author Sebastien Jodogne <s.jodogne@gmail.com>
date Thu, 18 Oct 2018 09:02:24 +0200
parents 7a364e44fbb4
children c7fdc8bac581
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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) 2017-2018 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
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22 #pragma once
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23
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24 #include "SampleApplicationBase.h"
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25
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26 #include "../../Framework/Layers/OrthancFrameLayerSource.h"
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27 #include "../../Framework/Widgets/LayerWidget.h"
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28
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29 #include <Core/Logging.h>
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31 namespace OrthancStone
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32 {
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33 namespace Samples
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34 {
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35 class SingleFrameApplication :
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36 public SampleSingleCanvasApplicationBase,
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37 public IObserver
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38 {
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39 private:
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40 class Interactor : public IWorldSceneInteractor
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41 {
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42 private:
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43 SingleFrameApplication& application_;
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44
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45 public:
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46 Interactor(SingleFrameApplication& application) :
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47 application_(application)
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48 {
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49 }
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50
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51 virtual IWorldSceneMouseTracker* CreateMouseTracker(WorldSceneWidget& widget,
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52 const ViewportGeometry& view,
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53 MouseButton button,
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54 KeyboardModifiers modifiers,
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55 double x,
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56 double y,
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57 IStatusBar* statusBar)
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58 {
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59 return NULL;
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60 }
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61
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62 virtual void MouseOver(CairoContext& context,
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63 WorldSceneWidget& widget,
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64 const ViewportGeometry& view,
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65 double x,
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66 double y,
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67 IStatusBar* statusBar)
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68 {
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69 if (statusBar != NULL)
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70 {
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71 Vector p = dynamic_cast<LayerWidget&>(widget).GetSlice().MapSliceToWorldCoordinates(x, y);
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72
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73 char buf[64];
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74 sprintf(buf, "X = %.02f Y = %.02f Z = %.02f (in cm)",
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75 p[0] / 10.0, p[1] / 10.0, p[2] / 10.0);
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76 statusBar->SetMessage(buf);
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77 }
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78 }
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79
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80 virtual void MouseWheel(WorldSceneWidget& widget,
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81 MouseWheelDirection direction,
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82 KeyboardModifiers modifiers,
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83 IStatusBar* statusBar)
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84 {
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85 int scale = (modifiers & KeyboardModifiers_Control ? 10 : 1);
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86
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87 switch (direction)
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88 {
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89 case MouseWheelDirection_Up:
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90 application_.OffsetSlice(-scale);
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91 break;
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93 case MouseWheelDirection_Down:
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94 application_.OffsetSlice(scale);
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95 break;
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96
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97 default:
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98 break;
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99 }
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100 }
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101
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102 virtual void KeyPressed(WorldSceneWidget& widget,
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103 KeyboardKeys key,
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104 char keyChar,
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105 KeyboardModifiers modifiers,
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106 IStatusBar* statusBar)
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107 {
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108 switch (keyChar)
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109 {
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110 case 's':
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111 widget.FitContent();
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112 break;
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113
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114 default:
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115 break;
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116 }
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117 }
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118 };
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119
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120
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121 void OffsetSlice(int offset)
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122 {
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123 if (source_ != NULL)
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124 {
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125 int slice = static_cast<int>(slice_) + offset;
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126
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127 if (slice < 0)
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128 {
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129 slice = 0;
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130 }
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131
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132 if (slice >= static_cast<int>(source_->GetSliceCount()))
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133 {
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134 slice = source_->GetSliceCount() - 1;
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135 }
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136
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137 if (slice != static_cast<int>(slice_))
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138 {
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139 SetSlice(slice);
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140 }
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141 }
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142 }
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143
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144
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145 void SetSlice(size_t index)
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146 {
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147 if (source_ != NULL &&
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148 index < source_->GetSliceCount())
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149 {
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150 slice_ = index;
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151
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152 #if 1
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153 mainWidget_->SetSlice(source_->GetSlice(slice_).GetGeometry());
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154 #else
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155 // TEST for scene extents - Rotate the axes
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156 double a = 15.0 / 180.0 * M_PI;
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157
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158 #if 1
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159 Vector x; GeometryToolbox::AssignVector(x, cos(a), sin(a), 0);
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160 Vector y; GeometryToolbox::AssignVector(y, -sin(a), cos(a), 0);
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161 #else
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162 // Flip the normal
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163 Vector x; GeometryToolbox::AssignVector(x, cos(a), sin(a), 0);
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164 Vector y; GeometryToolbox::AssignVector(y, sin(a), -cos(a), 0);
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165 #endif
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166
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167 SliceGeometry s(source_->GetSlice(slice_).GetGeometry().GetOrigin(), x, y);
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168 widget_->SetSlice(s);
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169 #endif
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170 }
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171 }
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172
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173
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174 void OnMainWidgetGeometryReady(const ILayerSource::GeometryReadyMessage& message)
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175 {
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176 // Once the geometry of the series is downloaded from Orthanc,
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177 // display its middle slice, and adapt the viewport to fit this
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178 // slice
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179 if (source_ == &message.origin_)
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180 {
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181 SetSlice(source_->GetSliceCount() / 2);
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182 }
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183
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184 mainWidget_->FitContent();
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185 }
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186
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187 std::auto_ptr<Interactor> mainWidgetInteractor_;
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188 std::auto_ptr<OrthancApiClient> orthancApiClient_;
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189 const OrthancFrameLayerSource* source_;
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190 unsigned int slice_;
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191
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192 public:
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193 SingleFrameApplication(MessageBroker& broker) :
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194 IObserver(broker),
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195 source_(NULL),
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196 slice_(0)
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197 {
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198 }
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199
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200 virtual void DeclareStartupOptions(boost::program_options::options_description& options)
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201 {
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202 boost::program_options::options_description generic("Sample options");
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203 generic.add_options()
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204 ("instance", boost::program_options::value<std::string>(),
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205 "Orthanc ID of the instance")
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206 ("frame", boost::program_options::value<unsigned int>()->default_value(0),
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207 "Number of the frame, for multi-frame DICOM instances")
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208 ("smooth", boost::program_options::value<bool>()->default_value(true),
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209 "Enable bilinear interpolation to smooth the image")
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210 ;
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211
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212 options.add(generic);
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213 }
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214
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215 virtual void Initialize(StoneApplicationContext* context,
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216 IStatusBar& statusBar,
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217 const boost::program_options::variables_map& parameters)
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218 {
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219 using namespace OrthancStone;
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220
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221 context_ = context;
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222
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223 statusBar.SetMessage("Use the key \"s\" to reinitialize the layout");
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224
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225 if (parameters.count("instance") != 1)
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226 {
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227 LOG(ERROR) << "The instance ID is missing";
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228 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange);
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229 }
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230
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231 std::string instance = parameters["instance"].as<std::string>();
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232 int frame = parameters["frame"].as<unsigned int>();
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233
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234 orthancApiClient_.reset(new OrthancApiClient(IObserver::broker_, context_->GetWebService()));
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235 mainWidget_ = new LayerWidget(broker_, "main-widget");
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236
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237 std::auto_ptr<OrthancFrameLayerSource> layer(new OrthancFrameLayerSource(broker_, *orthancApiClient_));
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238 source_ = layer.get();
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239 layer->LoadFrame(instance, frame);
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240 layer->RegisterObserverCallback(new Callable<SingleFrameApplication, ILayerSource::GeometryReadyMessage>(*this, &SingleFrameApplication::OnMainWidgetGeometryReady));
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241 mainWidget_->AddLayer(layer.release());
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242
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243 RenderStyle s;
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244
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245 if (parameters["smooth"].as<bool>())
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246 {
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247 s.interpolation_ = ImageInterpolation_Bilinear;
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248 }
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249
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250 mainWidget_->SetLayerStyle(0, s);
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251 mainWidget_->SetTransmitMouseOver(true);
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252
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253 mainWidgetInteractor_.reset(new Interactor(*this));
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254 mainWidget_->SetInteractor(*mainWidgetInteractor_);
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255 }
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256 };
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257
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258
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259 }
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260 }