408
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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 "../Toolbox/Extent2D.h"
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25 #include "../Toolbox/LinearAlgebra.h"
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26 #include "../Toolbox/OrthancApiClient.h"
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27 #include "../Viewport/CairoContext.h"
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28
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29
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30 namespace OrthancStone
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31 {
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32 class RadiographyScene :
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33 public IObserver,
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34 public IObservable
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35 {
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36 public:
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37 typedef OriginMessage<MessageType_Widget_GeometryChanged, RadiographyScene> GeometryChangedMessage;
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38 typedef OriginMessage<MessageType_Widget_ContentChanged, RadiographyScene> ContentChangedMessage;
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39
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40 enum Corner
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41 {
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42 Corner_TopLeft,
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43 Corner_TopRight,
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44 Corner_BottomLeft,
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45 Corner_BottomRight
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46 };
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47
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48 class Layer : public boost::noncopyable
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49 {
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50 friend class RadiographyScene;
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51
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52 private:
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53 size_t index_;
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54 bool hasSize_;
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55 unsigned int width_;
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56 unsigned int height_;
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57 bool hasCrop_;
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58 unsigned int cropX_;
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59 unsigned int cropY_;
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60 unsigned int cropWidth_;
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61 unsigned int cropHeight_;
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62 Matrix transform_;
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63 Matrix transformInverse_;
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64 double pixelSpacingX_;
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65 double pixelSpacingY_;
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66 double panX_;
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67 double panY_;
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68 double angle_;
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69 bool resizeable_;
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70
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71
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72 protected:
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73 const Matrix& GetTransform() const
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74 {
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75 return transform_;
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76 }
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77
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78
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79 private:
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80 void UpdateTransform();
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81
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82 void AddToExtent(Extent2D& extent,
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83 double x,
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84 double y) const;
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85
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86 void GetCornerInternal(double& x,
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87 double& y,
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88 Corner corner,
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89 unsigned int cropX,
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90 unsigned int cropY,
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91 unsigned int cropWidth,
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92 unsigned int cropHeight) const;
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93
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94 void SetIndex(size_t index)
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95 {
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96 index_ = index;
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97 }
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98
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99 bool Contains(double x,
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100 double y) const;
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101
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102 void DrawBorders(CairoContext& context,
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103 double zoom);
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104
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105 public:
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106 Layer();
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107
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108 virtual ~Layer()
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109 {
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110 }
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111
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112 size_t GetIndex() const
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113 {
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114 return index_;
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115 }
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116
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117 void ResetCrop()
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118 {
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119 hasCrop_ = false;
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120 }
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121
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122 void SetCrop(unsigned int x,
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123 unsigned int y,
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124 unsigned int width,
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125 unsigned int height);
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126
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127 void GetCrop(unsigned int& x,
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128 unsigned int& y,
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129 unsigned int& width,
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130 unsigned int& height) const;
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131
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132 void SetAngle(double angle);
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133
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134 double GetAngle() const
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135 {
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136 return angle_;
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137 }
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138
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139 void SetSize(unsigned int width,
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140 unsigned int height);
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141
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142 unsigned int GetWidth() const
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143 {
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144 return width_;
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145 }
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146
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147 unsigned int GetHeight() const
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148 {
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149 return height_;
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150 }
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151
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152 Extent2D GetExtent() const;
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153
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154 bool GetPixel(unsigned int& imageX,
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155 unsigned int& imageY,
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156 double sceneX,
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157 double sceneY) const;
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158
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159 void SetPan(double x,
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160 double y);
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161
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162 void SetPixelSpacing(double x,
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163 double y);
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164
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165 double GetPixelSpacingX() const
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166 {
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167 return pixelSpacingX_;
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168 }
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169
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170 double GetPixelSpacingY() const
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171 {
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172 return pixelSpacingY_;
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173 }
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174
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175 double GetPanX() const
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176 {
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177 return panX_;
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178 }
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179
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180 double GetPanY() const
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181 {
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182 return panY_;
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183 }
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184
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185 void GetCenter(double& centerX,
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186 double& centerY) const;
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187
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188 void GetCorner(double& x /* out */,
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189 double& y /* out */,
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190 Corner corner) const;
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191
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192 bool LookupCorner(Corner& corner /* out */,
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193 double x,
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194 double y,
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195 double zoom,
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196 double viewportDistance) const;
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197
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198 bool IsResizeable() const
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199 {
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200 return resizeable_;
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201 }
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202
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203 void SetResizeable(bool resizeable)
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204 {
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205 resizeable_ = resizeable;
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206 }
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207
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208 virtual bool GetDefaultWindowing(float& center,
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209 float& width) const = 0;
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210
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211 virtual void Render(Orthanc::ImageAccessor& buffer,
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212 const Matrix& viewTransform,
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213 ImageInterpolation interpolation) const = 0;
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214
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215 virtual bool GetRange(float& minValue,
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216 float& maxValue) const = 0;
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217 };
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218
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219
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220 class LayerAccessor : public boost::noncopyable
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221 {
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222 private:
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223 RadiographyScene& scene_;
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224 size_t index_;
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225 Layer* layer_;
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226
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227 public:
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228 LayerAccessor(RadiographyScene& scene,
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229 size_t index);
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230
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231 LayerAccessor(RadiographyScene& scene,
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232 double x,
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233 double y);
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234
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235 void Invalidate()
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236 {
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237 layer_ = NULL;
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238 }
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239
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240 bool IsValid() const
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241 {
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242 return layer_ != NULL;
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243 }
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244
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245 RadiographyScene& GetScene() const;
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246
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247 size_t GetIndex() const;
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248
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249 Layer& GetLayer() const;
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250 };
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251
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252
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253 private:
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254 class AlphaLayer;
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255 class DicomLayer;
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256
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257 typedef std::map<size_t, Layer*> Layers;
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258
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259 OrthancApiClient& orthanc_;
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260 size_t countLayers_;
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261 bool hasWindowing_;
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262 float windowingCenter_;
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263 float windowingWidth_;
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264 Layers layers_;
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265
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266 Layer& RegisterLayer(Layer* layer);
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267
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268 void OnTagsReceived(const OrthancApiClient::BinaryResponseReadyMessage& message);
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269
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270 void OnFrameReceived(const OrthancApiClient::BinaryResponseReadyMessage& message);
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271
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272 void OnDicomExported(const OrthancApiClient::JsonResponseReadyMessage& message);
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273
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274 public:
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275 RadiographyScene(MessageBroker& broker,
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276 OrthancApiClient& orthanc);
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277
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278 virtual ~RadiographyScene();
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279
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280 bool GetWindowing(float& center,
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281 float& width) const;
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282
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283 void GetWindowingWithDefault(float& center,
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284 float& width) const;
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285
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286 void SetWindowing(float center,
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287 float width);
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288
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289 Layer& LoadText(const Orthanc::Font& font,
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290 const std::string& utf8);
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291
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292 Layer& LoadTestBlock(unsigned int width,
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293 unsigned int height);
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294
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295 Layer& LoadDicomFrame(const std::string& instance,
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296 unsigned int frame,
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297 bool httpCompression);
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298
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299 Extent2D GetSceneExtent() const;
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300
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301 void Render(Orthanc::ImageAccessor& buffer,
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302 const Matrix& viewTransform,
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303 ImageInterpolation interpolation) const;
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304
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305 bool LookupLayer(size_t& index /* out */,
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306 double x,
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307 double y) const;
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308
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309 void DrawBorder(CairoContext& context,
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310 unsigned int layer,
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311 double zoom);
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312
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313 void GetRange(float& minValue,
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314 float& maxValue) const;
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315
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316 // Export using PAM is faster than using PNG, but requires Orthanc
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317 // core >= 1.4.3
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318 void ExportDicom(const Orthanc::DicomMap& dicom,
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319 double pixelSpacingX,
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320 double pixelSpacingY,
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321 bool invert,
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322 ImageInterpolation interpolation,
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323 bool usePam);
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324 };
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325 }
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