Mercurial > hg > orthanc-stone

annotate Applications/Samples/SingleFrameApplication.h @ 441:56ddca73396c am-vsol-upgrade

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author Alain Mazy <alain@mazy.be>
date Mon, 14 Jan 2019 11:27:26 +0100
parents b70e9be013e4
children 3b4df9925db6
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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
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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/DicomSeriesVolumeSlicer.h"
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27 #include "../../Framework/Widgets/SliceViewerWidget.h"
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28
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29 #include <Core/Logging.h>
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30 #include <Core/OrthancException.h>
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31
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32 #include <boost/math/constants/constants.hpp>
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33
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34
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35 namespace OrthancStone
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36 {
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37 namespace Samples
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38 {
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39 class SingleFrameApplication :
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40 public SampleSingleCanvasApplicationBase,
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41 public IObserver
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42 {
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43 private:
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44 class Interactor : public IWorldSceneInteractor
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45 {
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46 private:
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47 SingleFrameApplication& application_;
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48
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49 public:
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50 Interactor(SingleFrameApplication& application) :
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51 application_(application)
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52 {
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53 }
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54
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55 virtual IWorldSceneMouseTracker* CreateMouseTracker(WorldSceneWidget& widget,
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56 const ViewportGeometry& view,
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57 MouseButton button,
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58 KeyboardModifiers modifiers,
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59 int viewportX,
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60 int viewportY,
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61 double x,
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62 double y,
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63 IStatusBar* statusBar)
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64 {
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65 return NULL;
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66 }
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67
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68 virtual void MouseOver(CairoContext& context,
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69 WorldSceneWidget& widget,
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70 const ViewportGeometry& view,
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71 double x,
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72 double y,
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73 IStatusBar* statusBar)
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74 {
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75 if (statusBar != NULL)
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76 {
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77 Vector p = dynamic_cast<SliceViewerWidget&>(widget).GetSlice().MapSliceToWorldCoordinates(x, y);
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78
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79 char buf[64];
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80 sprintf(buf, "X = %.02f Y = %.02f Z = %.02f (in cm)",
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81 p[0] / 10.0, p[1] / 10.0, p[2] / 10.0);
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82 statusBar->SetMessage(buf);
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83 }
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84 }
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85
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86 virtual void MouseWheel(WorldSceneWidget& widget,
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87 MouseWheelDirection direction,
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88 KeyboardModifiers modifiers,
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89 IStatusBar* statusBar)
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90 {
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91 int scale = (modifiers & KeyboardModifiers_Control ? 10 : 1);
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92
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93 switch (direction)
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94 {
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95 case MouseWheelDirection_Up:
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96 application_.OffsetSlice(-scale);
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97 break;
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98
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99 case MouseWheelDirection_Down:
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100 application_.OffsetSlice(scale);
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101 break;
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102
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103 default:
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104 break;
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105 }
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106 }
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107
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108 virtual void KeyPressed(WorldSceneWidget& widget,
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109 KeyboardKeys key,
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110 char keyChar,
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111 KeyboardModifiers modifiers,
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112 IStatusBar* statusBar)
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113 {
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114 switch (keyChar)
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115 {
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116 case 's':
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117 widget.FitContent();
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118 break;
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119
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120 default:
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121 break;
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122 }
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123 }
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124 };
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125
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126
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127 void OffsetSlice(int offset)
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128 {
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129 if (source_ != NULL)
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130 {
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131 int slice = static_cast<int>(slice_) + offset;
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132
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133 if (slice < 0)
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134 {
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135 slice = 0;
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136 }
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137
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138 if (slice >= static_cast<int>(source_->GetSliceCount()))
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139 {
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140 slice = source_->GetSliceCount() - 1;
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141 }
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142
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143 if (slice != static_cast<int>(slice_))
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144 {
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145 SetSlice(slice);
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146 }
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147 }
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148 }
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149
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150
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151 SliceViewerWidget& GetMainWidget()
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152 {
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153 return *dynamic_cast<SliceViewerWidget*>(mainWidget_);
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154 }
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155
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156
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157 void SetSlice(size_t index)
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158 {
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159 if (source_ != NULL &&
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160 index < source_->GetSliceCount())
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161 {
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162 slice_ = index;
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163
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164 #if 1
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165 GetMainWidget().SetSlice(source_->GetSlice(slice_).GetGeometry());
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166 #else
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167 // TEST for scene extents - Rotate the axes
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168 double a = 15.0 / 180.0 * boost::math::constants::pi<double>();
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169
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170 #if 1
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171 Vector x; GeometryToolbox::AssignVector(x, cos(a), sin(a), 0);
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172 Vector y; GeometryToolbox::AssignVector(y, -sin(a), cos(a), 0);
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173 #else
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174 // Flip the normal
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175 Vector x; GeometryToolbox::AssignVector(x, cos(a), sin(a), 0);
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176 Vector y; GeometryToolbox::AssignVector(y, sin(a), -cos(a), 0);
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177 #endif
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178
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179 SliceGeometry s(source_->GetSlice(slice_).GetGeometry().GetOrigin(), x, y);
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180 widget_->SetSlice(s);
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181 #endif
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182 }
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183 }
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184
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185
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186 void OnMainWidgetGeometryReady(const IVolumeSlicer::GeometryReadyMessage& message)
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187 {
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188 // Once the geometry of the series is downloaded from Orthanc,
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189 // display its middle slice, and adapt the viewport to fit this
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190 // slice
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191 if (source_ == &message.GetOrigin())
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192 {
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193 SetSlice(source_->GetSliceCount() / 2);
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194 }
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195
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196 GetMainWidget().FitContent();
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197 }
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198
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199 std::auto_ptr<Interactor> mainWidgetInteractor_;
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200 const DicomSeriesVolumeSlicer* source_;
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201 unsigned int slice_;
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202
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203 public:
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204 SingleFrameApplication(MessageBroker& broker) :
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205 IObserver(broker),
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206 source_(NULL),
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207 slice_(0)
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208 {
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209 }
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210
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211 virtual void DeclareStartupOptions(boost::program_options::options_description& options)
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212 {
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213 boost::program_options::options_description generic("Sample options");
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214 generic.add_options()
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215 ("instance", boost::program_options::value<std::string>(),
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216 "Orthanc ID of the instance")
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217 ("frame", boost::program_options::value<unsigned int>()->default_value(0),
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218 "Number of the frame, for multi-frame DICOM instances")
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219 ("smooth", boost::program_options::value<bool>()->default_value(true),
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220 "Enable bilinear interpolation to smooth the image")
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221 ;
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222
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223 options.add(generic);
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224 }
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225
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226 virtual void Initialize(StoneApplicationContext* context,
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227 IStatusBar& statusBar,
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228 const boost::program_options::variables_map& parameters)
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229 {
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230 using namespace OrthancStone;
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231
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232 context_ = context;
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233
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234 statusBar.SetMessage("Use the key \"s\" to reinitialize the layout");
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235
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236 if (parameters.count("instance") != 1)
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237 {
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238 LOG(ERROR) << "The instance ID is missing";
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239 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange);
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240 }
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241
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242 std::string instance = parameters["instance"].as<std::string>();
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243 int frame = parameters["frame"].as<unsigned int>();
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244
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245 mainWidget_ = new SliceViewerWidget(GetBroker(), "main-widget");
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246
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247 std::auto_ptr<DicomSeriesVolumeSlicer> layer(new DicomSeriesVolumeSlicer(GetBroker(), context->GetOrthancApiClient()));
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248 source_ = layer.get();
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249 layer->LoadFrame(instance, frame);
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250 layer->RegisterObserverCallback(new Callable<SingleFrameApplication, IVolumeSlicer::GeometryReadyMessage>(*this, &SingleFrameApplication::OnMainWidgetGeometryReady));
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251 GetMainWidget().AddLayer(layer.release());
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252
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253 RenderStyle s;
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254
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255 if (parameters["smooth"].as<bool>())
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256 {
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257 s.interpolation_ = ImageInterpolation_Bilinear;
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258 }
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259
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260 GetMainWidget().SetLayerStyle(0, s);
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261 GetMainWidget().SetTransmitMouseOver(true);
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262
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263 mainWidgetInteractor_.reset(new Interactor(*this));
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264 GetMainWidget().SetInteractor(*mainWidgetInteractor_);
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265 }
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266 };
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267
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268
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269 }
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270 }