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annotate Applications/Samples/SingleFrameApplication.h @ 100:166a555becbf wasm

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fix jpeg decoding in wasm
author Sebastien Jodogne <s.jodogne@gmail.com>
date Tue, 30 May 2017 22:22:04 +0200
parents a33abae66344
children af312ce4fe59
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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 Osimis, 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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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 #include "SampleInteractor.h"
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26
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27 #include "../../Framework/Layers/OrthancFrameLayerSource.h"
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28 #include "../../Framework/Widgets/LayerWidget.h"
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29 #include "../../Resources/Orthanc/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 SampleApplicationBase,
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37 private ILayerSource::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 double x,
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55 double y,
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56 IStatusBar* statusBar)
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57 {
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58 return NULL;
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59 }
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60
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61 virtual void MouseOver(CairoContext& context,
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62 WorldSceneWidget& widget,
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63 const ViewportGeometry& view,
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64 double x,
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65 double y,
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66 IStatusBar* statusBar)
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67 {
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68 if (statusBar != NULL)
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69 {
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70 Vector p = dynamic_cast<LayerWidget&>(widget).GetSlice().MapSliceToWorldCoordinates(x, y);
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71
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72 char buf[64];
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73 sprintf(buf, "X = %.02f Y = %.02f Z = %.02f (in cm)",
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74 p[0] / 10.0, p[1] / 10.0, p[2] / 10.0);
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75 statusBar->SetMessage(buf);
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76 }
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77 }
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78
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79 virtual void MouseWheel(WorldSceneWidget& widget,
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80 MouseWheelDirection direction,
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81 KeyboardModifiers modifiers,
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82 IStatusBar* statusBar)
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83 {
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84 unsigned int scale = (modifiers & KeyboardModifiers_Control ? 10 : 1);
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86 switch (direction)
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87 {
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88 case MouseWheelDirection_Up:
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89 application_.OffsetSlice(-scale);
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90 break;
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91
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92 case MouseWheelDirection_Down:
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93 application_.OffsetSlice(scale);
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94 break;
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95
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96 default:
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97 break;
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98 }
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99 }
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100
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101 virtual void KeyPressed(WorldSceneWidget& widget,
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102 char key,
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103 KeyboardModifiers modifiers,
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104 IStatusBar* statusBar)
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105 {
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106 switch (key)
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107 {
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108 case 's':
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109 widget.SetDefaultView();
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110 break;
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111
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112 default:
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113 break;
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114 }
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115 }
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116 };
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117
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118
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119 void OffsetSlice(int offset)
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120 {
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121 if (source_ != NULL)
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122 {
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123 int slice = static_cast<int>(slice_) + offset;
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124
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125 if (slice < 0)
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126 {
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127 slice = 0;
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128 }
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129
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130 if (slice >= static_cast<int>(source_->GetSliceCount()))
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131 {
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132 slice = source_->GetSliceCount() - 1;
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133 }
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134
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135 if (slice != static_cast<int>(slice_))
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136 {
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137 SetSlice(slice);
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138 }
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139 }
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140 }
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141
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142
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143 void SetSlice(size_t index)
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144 {
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145 if (source_ != NULL &&
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146 index < source_->GetSliceCount())
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147 {
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148 slice_ = index;
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149
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150 #if 1
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151 widget_->SetSlice(source_->GetSlice(slice_).GetGeometry());
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152 #else
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153 // TEST for scene extents - Rotate the axes
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154 double a = 15.0 / 180.0 * M_PI;
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155
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156 Vector x; GeometryToolbox::AssignVector(x, cos(a), sin(a), 0);
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157 Vector y; GeometryToolbox::AssignVector(y, -sin(a), cos(a), 0);
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158 SliceGeometry s(source_->GetSlice(slice_).GetGeometry().GetOrigin(), x, y);
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159 widget_->SetSlice(s);
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160 #endif
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161 }
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162 }
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163
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164
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165 virtual void NotifyGeometryReady(const ILayerSource& source)
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166 {
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167 // Once the geometry of the series is downloaded from Orthanc,
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168 // display its first slice, and adapt the viewport to fit this
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169 // slice
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170 if (source_ == &source)
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171 {
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172 SetSlice(source_->GetSliceCount() / 2);
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173 }
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174
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175 widget_->SetDefaultView();
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176 }
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177
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178 virtual void NotifyGeometryError(const ILayerSource& source)
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179 {
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180 }
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181
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182 virtual void NotifyContentChange(const ILayerSource& source)
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183 {
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184 }
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185
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186 virtual void NotifySliceChange(const ILayerSource& source,
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187 const Slice& slice)
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188 {
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189 }
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190
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191 virtual void NotifyLayerReady(std::auto_ptr<ILayerRenderer>& layer,
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192 const ILayerSource& source,
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193 const Slice& slice,
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194 bool isError)
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195 {
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196 }
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197
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198 LayerWidget* widget_;
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199 const OrthancFrameLayerSource* source_;
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200 unsigned int slice_;
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201
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202 public:
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203 SingleFrameApplication() :
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204 widget_(NULL),
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205 source_(NULL),
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206 slice_(0)
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207 {
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208 }
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209
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210 virtual void DeclareCommandLineOptions(boost::program_options::options_description& options)
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211 {
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212 boost::program_options::options_description generic("Sample options");
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213 generic.add_options()
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214 ("instance", boost::program_options::value<std::string>(),
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215 "Orthanc ID of the instance")
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216 ("frame", boost::program_options::value<unsigned int>()->default_value(0),
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217 "Number of the frame, for multi-frame DICOM instances")
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218 ("smooth", boost::program_options::value<bool>()->default_value(true),
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219 "Enable linear interpolation to smooth the image")
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220 ;
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221
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222 options.add(generic);
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223 }
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224
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225 virtual void Initialize(BasicApplicationContext& context,
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226 IStatusBar& statusBar,
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227 const boost::program_options::variables_map& parameters)
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228 {
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229 using namespace OrthancStone;
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230
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231 statusBar.SetMessage("Use the key \"s\" to reinitialize the layout");
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232
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233 if (parameters.count("instance") != 1)
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234 {
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235 LOG(ERROR) << "The instance ID is missing";
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236 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange);
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237 }
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238
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239 std::string instance = parameters["instance"].as<std::string>();
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240 int frame = parameters["frame"].as<unsigned int>();
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241
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242 std::auto_ptr<LayerWidget> widget(new LayerWidget);
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243
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244 #if 1
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245 std::auto_ptr<OrthancFrameLayerSource> layer
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246 (new OrthancFrameLayerSource(context.GetWebService()));
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247 //layer->SetImageQuality(SliceImageQuality_Jpeg50);
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248 layer->LoadInstance(instance, frame);
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249 //layer->LoadSeries("6f1b492a-e181e200-44e51840-ef8db55e-af529ab6");
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250 layer->Register(*this);
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251 source_ = layer.get();
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252 widget->AddLayer(layer.release());
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253
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254 RenderStyle s;
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255
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256 if (parameters["smooth"].as<bool>())
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257 {
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258 s.interpolation_ = ImageInterpolation_Linear;
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259 }
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260
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261 //s.drawGrid_ = true;
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262 widget->SetLayerStyle(0, s);
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263 #else
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264 // 0178023P**
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265 // Extent of the CT layer: (-35.068 -20.368) => (34.932 49.632)
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266 std::auto_ptr<OrthancFrameLayerSource> ct;
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267 ct.reset(new OrthancFrameLayerSource(context.GetWebService()));
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268 //ct->LoadInstance("c804a1a2-142545c9-33b32fe2-3df4cec0-a2bea6d6", 0);
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269 //ct->LoadInstance("4bd4304f-47478948-71b24af2-51f4f1bc-275b6c1b", 0); // BAD SLICE
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270 ct->SetImageQuality(SliceImageQuality_Jpeg50);
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271 ct->LoadSeries("dd069910-4f090474-7d2bba07-e5c10783-f9e4fb1d");
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272
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273 ct->Register(*this);
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274 widget->AddLayer(ct.release());
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275
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276 std::auto_ptr<OrthancFrameLayerSource> pet;
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277 pet.reset(new OrthancFrameLayerSource(context.GetWebService()));
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278 //pet->LoadInstance("a1c4dc6b-255d27f0-88069875-8daed730-2f5ee5c6", 0);
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279 pet->LoadSeries("aabad2e7-80702b5d-e599d26c-4f13398e-38d58a9e");
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280 pet->Register(*this);
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281 source_ = pet.get();
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282 widget->AddLayer(pet.release());
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283
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284 {
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285 RenderStyle s;
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286 //s.drawGrid_ = true;
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287 s.alpha_ = 1;
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288 widget->SetLayerStyle(0, s);
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289 }
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290
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291 {
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292 RenderStyle s;
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293 //s.drawGrid_ = true;
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294 s.SetColor(255, 0, 0); // Draw missing PET layer in red
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295 s.alpha_ = 0.5;
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296 s.applyLut_ = true;
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297 s.lut_ = Orthanc::EmbeddedResources::COLORMAP_JET;
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298 s.interpolation_ = ImageInterpolation_Linear;
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299 widget->SetLayerStyle(1, s);
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300 }
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301 #endif
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302
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303 widget_ = widget.get();
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304 widget_->SetTransmitMouseOver(true);
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305 widget_->SetInteractor(context.AddInteractor(new Interactor(*this)));
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306 context.SetCentralWidget(widget.release());
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307 }
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308 };
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309 }
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310 }