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annotate Applications/Samples/SingleFrameApplication.h @ 363:54ae0577f5bb am-2

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fix anisotropic pixel spacing
author Sebastien Jodogne <s.jodogne@gmail.com>
date Tue, 30 Oct 2018 18:55:52 +0100
parents 885f0a5eaa49
children 70256a53ff21
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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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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 int viewportX,
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56 int viewportY,
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57 double x,
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58 double y,
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59 IStatusBar* statusBar)
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60 {
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61 return NULL;
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62 }
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63
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64 virtual void MouseOver(CairoContext& context,
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65 WorldSceneWidget& widget,
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66 const ViewportGeometry& view,
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67 double x,
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68 double y,
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69 IStatusBar* statusBar)
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70 {
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71 if (statusBar != NULL)
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72 {
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73 Vector p = dynamic_cast<LayerWidget&>(widget).GetSlice().MapSliceToWorldCoordinates(x, y);
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74
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75 char buf[64];
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76 sprintf(buf, "X = %.02f Y = %.02f Z = %.02f (in cm)",
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77 p[0] / 10.0, p[1] / 10.0, p[2] / 10.0);
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78 statusBar->SetMessage(buf);
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79 }
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80 }
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81
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82 virtual void MouseWheel(WorldSceneWidget& widget,
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83 MouseWheelDirection direction,
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84 KeyboardModifiers modifiers,
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85 IStatusBar* statusBar)
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86 {
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87 int scale = (modifiers & KeyboardModifiers_Control ? 10 : 1);
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88
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89 switch (direction)
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90 {
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91 case MouseWheelDirection_Up:
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92 application_.OffsetSlice(-scale);
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93 break;
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94
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95 case MouseWheelDirection_Down:
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96 application_.OffsetSlice(scale);
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97 break;
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99 default:
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100 break;
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101 }
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102 }
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103
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104 virtual void KeyPressed(WorldSceneWidget& widget,
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105 KeyboardKeys key,
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106 char keyChar,
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107 KeyboardModifiers modifiers,
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108 IStatusBar* statusBar)
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109 {
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110 switch (keyChar)
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111 {
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112 case 's':
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113 widget.FitContent();
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114 break;
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115
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116 default:
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117 break;
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118 }
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119 }
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120 };
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121
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122
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123 void OffsetSlice(int offset)
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124 {
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125 if (source_ != NULL)
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126 {
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127 int slice = static_cast<int>(slice_) + offset;
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128
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129 if (slice < 0)
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130 {
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131 slice = 0;
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132 }
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133
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134 if (slice >= static_cast<int>(source_->GetSliceCount()))
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135 {
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136 slice = source_->GetSliceCount() - 1;
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137 }
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138
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139 if (slice != static_cast<int>(slice_))
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140 {
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141 SetSlice(slice);
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142 }
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143 }
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144 }
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145
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146
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147 LayerWidget& GetMainWidget()
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148 {
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149 return *dynamic_cast<LayerWidget*>(mainWidget_);
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150 }
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152
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153 void SetSlice(size_t index)
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154 {
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155 if (source_ != NULL &&
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156 index < source_->GetSliceCount())
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157 {
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158 slice_ = index;
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159
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160 #if 1
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161 GetMainWidget().SetSlice(source_->GetSlice(slice_).GetGeometry());
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162 #else
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163 // TEST for scene extents - Rotate the axes
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164 double a = 15.0 / 180.0 * M_PI;
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165
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166 #if 1
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167 Vector x; GeometryToolbox::AssignVector(x, cos(a), sin(a), 0);
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168 Vector y; GeometryToolbox::AssignVector(y, -sin(a), cos(a), 0);
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169 #else
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170 // Flip the normal
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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 #endif
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174
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175 SliceGeometry s(source_->GetSlice(slice_).GetGeometry().GetOrigin(), x, y);
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176 widget_->SetSlice(s);
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177 #endif
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178 }
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179 }
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180
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181
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182 void OnMainWidgetGeometryReady(const ILayerSource::GeometryReadyMessage& message)
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183 {
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184 // Once the geometry of the series is downloaded from Orthanc,
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185 // display its middle slice, and adapt the viewport to fit this
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186 // slice
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187 if (source_ == &message.origin_)
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188 {
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189 SetSlice(source_->GetSliceCount() / 2);
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190 }
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191
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192 GetMainWidget().FitContent();
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193 }
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194
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195 std::auto_ptr<Interactor> mainWidgetInteractor_;
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196 std::auto_ptr<OrthancApiClient> orthancApiClient_;
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197 const OrthancFrameLayerSource* source_;
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198 unsigned int slice_;
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199
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200 public:
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201 SingleFrameApplication(MessageBroker& broker) :
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202 IObserver(broker),
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203 source_(NULL),
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204 slice_(0)
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205 {
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206 }
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207
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208 virtual void DeclareStartupOptions(boost::program_options::options_description& options)
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209 {
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210 boost::program_options::options_description generic("Sample options");
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211 generic.add_options()
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212 ("instance", boost::program_options::value<std::string>(),
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213 "Orthanc ID of the instance")
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214 ("frame", boost::program_options::value<unsigned int>()->default_value(0),
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215 "Number of the frame, for multi-frame DICOM instances")
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216 ("smooth", boost::program_options::value<bool>()->default_value(true),
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217 "Enable bilinear interpolation to smooth the image")
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218 ;
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219
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220 options.add(generic);
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221 }
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222
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223 virtual void Initialize(StoneApplicationContext* context,
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224 IStatusBar& statusBar,
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225 const boost::program_options::variables_map& parameters)
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226 {
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227 using namespace OrthancStone;
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228
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229 context_ = context;
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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 orthancApiClient_.reset(new OrthancApiClient(IObserver::broker_, context_->GetWebService()));
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243 mainWidget_ = new LayerWidget(broker_, "main-widget");
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244
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245 std::auto_ptr<OrthancFrameLayerSource> layer(new OrthancFrameLayerSource(broker_, *orthancApiClient_));
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246 source_ = layer.get();
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247 layer->LoadFrame(instance, frame);
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248 layer->RegisterObserverCallback(new Callable<SingleFrameApplication, ILayerSource::GeometryReadyMessage>(*this, &SingleFrameApplication::OnMainWidgetGeometryReady));
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249 GetMainWidget().AddLayer(layer.release());
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250
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251 RenderStyle s;
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252
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253 if (parameters["smooth"].as<bool>())
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254 {
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255 s.interpolation_ = ImageInterpolation_Bilinear;
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256 }
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257
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258 GetMainWidget().SetLayerStyle(0, s);
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259 GetMainWidget().SetTransmitMouseOver(true);
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260
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261 mainWidgetInteractor_.reset(new Interactor(*this));
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262 GetMainWidget().SetInteractor(*mainWidgetInteractor_);
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263 }
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264 };
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265
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266
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267 }
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268 }