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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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409
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24 #include "../Toolbox/AffineTransform2D.h"
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408
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25 #include "../Toolbox/Extent2D.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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409
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48
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408
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49 class Layer : public boost::noncopyable
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50 {
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51 friend class RadiographyScene;
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52
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53 private:
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409
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54 size_t index_;
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55 bool hasSize_;
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56 unsigned int width_;
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57 unsigned int height_;
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58 bool hasCrop_;
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59 unsigned int cropX_;
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60 unsigned int cropY_;
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61 unsigned int cropWidth_;
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62 unsigned int cropHeight_;
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63 AffineTransform2D transform_;
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64 AffineTransform2D transformInverse_;
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65 double pixelSpacingX_;
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66 double pixelSpacingY_;
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67 double panX_;
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68 double panY_;
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69 double angle_;
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70 bool resizeable_;
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408
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71
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72
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73 protected:
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409
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74 const AffineTransform2D& GetTransform() const
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408
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75 {
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76 return transform_;
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77 }
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78
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79
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80 private:
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81 void UpdateTransform();
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82
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83 void AddToExtent(Extent2D& extent,
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84 double x,
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85 double y) const;
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86
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87 void GetCornerInternal(double& x,
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88 double& y,
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89 Corner corner,
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90 unsigned int cropX,
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91 unsigned int cropY,
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92 unsigned int cropWidth,
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93 unsigned int cropHeight) const;
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94
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95 void SetIndex(size_t index)
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96 {
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97 index_ = index;
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98 }
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99
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100 bool Contains(double x,
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101 double y) const;
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102
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103 void DrawBorders(CairoContext& context,
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104 double zoom);
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105
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106 public:
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107 Layer();
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108
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109 virtual ~Layer()
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110 {
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111 }
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112
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113 size_t GetIndex() const
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114 {
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115 return index_;
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116 }
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117
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118 void ResetCrop()
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119 {
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120 hasCrop_ = false;
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121 }
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122
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123 void SetCrop(unsigned int x,
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124 unsigned int y,
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125 unsigned int width,
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126 unsigned int height);
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127
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128 void GetCrop(unsigned int& x,
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129 unsigned int& y,
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130 unsigned int& width,
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131 unsigned int& height) const;
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132
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133 void SetAngle(double angle);
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134
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135 double GetAngle() const
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136 {
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137 return angle_;
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138 }
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139
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140 void SetSize(unsigned int width,
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141 unsigned int height);
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142
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143 unsigned int GetWidth() const
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144 {
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145 return width_;
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146 }
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147
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148 unsigned int GetHeight() const
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149 {
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150 return height_;
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151 }
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152
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153 Extent2D GetExtent() const;
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154
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155 bool GetPixel(unsigned int& imageX,
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156 unsigned int& imageY,
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157 double sceneX,
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158 double sceneY) const;
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159
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160 void SetPan(double x,
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161 double y);
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162
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163 void SetPixelSpacing(double x,
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164 double y);
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165
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166 double GetPixelSpacingX() const
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167 {
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168 return pixelSpacingX_;
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169 }
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170
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171 double GetPixelSpacingY() const
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172 {
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173 return pixelSpacingY_;
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174 }
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175
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176 double GetPanX() const
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177 {
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178 return panX_;
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179 }
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180
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181 double GetPanY() const
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182 {
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183 return panY_;
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184 }
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185
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186 void GetCenter(double& centerX,
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187 double& centerY) const;
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188
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189 void GetCorner(double& x /* out */,
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190 double& y /* out */,
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191 Corner corner) const;
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192
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193 bool LookupCorner(Corner& corner /* out */,
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194 double x,
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195 double y,
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196 double zoom,
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197 double viewportDistance) const;
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198
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199 bool IsResizeable() const
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200 {
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201 return resizeable_;
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202 }
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203
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204 void SetResizeable(bool resizeable)
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205 {
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206 resizeable_ = resizeable;
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207 }
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208
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209 virtual bool GetDefaultWindowing(float& center,
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210 float& width) const = 0;
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211
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212 virtual void Render(Orthanc::ImageAccessor& buffer,
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409
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213 const AffineTransform2D& viewTransform,
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408
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214 ImageInterpolation interpolation) const = 0;
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215
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216 virtual bool GetRange(float& minValue,
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217 float& maxValue) const = 0;
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218 };
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219
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220
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221 class LayerAccessor : public boost::noncopyable
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222 {
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223 private:
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224 RadiographyScene& scene_;
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225 size_t index_;
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226 Layer* layer_;
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227
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228 public:
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229 LayerAccessor(RadiographyScene& scene,
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230 size_t index);
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231
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232 LayerAccessor(RadiographyScene& scene,
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233 double x,
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234 double y);
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235
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236 void Invalidate()
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237 {
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238 layer_ = NULL;
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239 }
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240
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241 bool IsValid() const
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242 {
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243 return layer_ != NULL;
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244 }
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245
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246 RadiographyScene& GetScene() const;
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247
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248 size_t GetIndex() const;
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249
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250 Layer& GetLayer() const;
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251 };
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252
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253
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254 private:
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255 class AlphaLayer;
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256 class DicomLayer;
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257
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258 typedef std::map<size_t, Layer*> Layers;
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259
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260 OrthancApiClient& orthanc_;
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261 size_t countLayers_;
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262 bool hasWindowing_;
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263 float windowingCenter_;
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264 float windowingWidth_;
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265 Layers layers_;
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266
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267 Layer& RegisterLayer(Layer* layer);
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268
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269 void OnTagsReceived(const OrthancApiClient::BinaryResponseReadyMessage& message);
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270
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271 void OnFrameReceived(const OrthancApiClient::BinaryResponseReadyMessage& message);
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272
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273 void OnDicomExported(const OrthancApiClient::JsonResponseReadyMessage& message);
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274
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275 public:
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276 RadiographyScene(MessageBroker& broker,
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277 OrthancApiClient& orthanc);
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278
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279 virtual ~RadiographyScene();
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280
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281 bool GetWindowing(float& center,
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282 float& width) const;
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283
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284 void GetWindowingWithDefault(float& center,
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285 float& width) const;
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286
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287 void SetWindowing(float center,
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288 float width);
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289
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290 Layer& LoadText(const Orthanc::Font& font,
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291 const std::string& utf8);
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292
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293 Layer& LoadTestBlock(unsigned int width,
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294 unsigned int height);
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295
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296 Layer& LoadDicomFrame(const std::string& instance,
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297 unsigned int frame,
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298 bool httpCompression);
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299
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300 Extent2D GetSceneExtent() const;
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301
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302 void Render(Orthanc::ImageAccessor& buffer,
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409
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303 const AffineTransform2D& viewTransform,
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408
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304 ImageInterpolation interpolation) const;
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305
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306 bool LookupLayer(size_t& index /* out */,
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307 double x,
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308 double y) const;
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309
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310 void DrawBorder(CairoContext& context,
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311 unsigned int layer,
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312 double zoom);
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313
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314 void GetRange(float& minValue,
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315 float& maxValue) const;
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316
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317 // Export using PAM is faster than using PNG, but requires Orthanc
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318 // core >= 1.4.3
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319 void ExportDicom(const Orthanc::DicomMap& dicom,
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320 double pixelSpacingX,
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321 double pixelSpacingY,
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322 bool invert,
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323 ImageInterpolation interpolation,
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324 bool usePam);
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325 };
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326 }
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