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430
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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 "RadiographyLayer.h"
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25
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26 namespace OrthancStone
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27 {
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28 class RadiographyScene;
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29
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30 // creates a transparent layer whose alpha channel is provided as a UINT8 image to SetAlpha.
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31 // The color of the "mask" is either defined by a ForegroundValue or by the center value of the
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32 // windowing from the scene.
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33 class RadiographyAlphaLayer : public RadiographyLayer
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34 {
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35 private:
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36 const RadiographyScene& scene_;
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37 std::auto_ptr<Orthanc::ImageAccessor> alpha_; // Grayscale8
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38 bool useWindowing_;
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39 float foreground_;
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40
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41 public:
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42 RadiographyAlphaLayer(const RadiographyScene& scene) :
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43 scene_(scene),
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44 useWindowing_(true),
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45 foreground_(0)
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46 {
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47 }
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48
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49
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50 void SetForegroundValue(float foreground)
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51 {
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52 useWindowing_ = false;
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53 foreground_ = foreground;
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54 }
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55
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56 float GetForegroundValue() const
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57 {
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58 return foreground_;
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59 }
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60
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61 bool IsUsingWindowing() const
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62 {
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63 return useWindowing_;
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64 }
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65
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66 void SetAlpha(Orthanc::ImageAccessor* image);
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67
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68 virtual bool GetDefaultWindowing(float& center,
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69 float& width) const
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70 {
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71 return false;
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72 }
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73
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74
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75 virtual void Render(Orthanc::ImageAccessor& buffer,
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76 const AffineTransform2D& viewTransform,
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77 ImageInterpolation interpolation) const;
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78
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79 virtual bool GetRange(float& minValue,
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80 float& maxValue) const;
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81
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82 const Orthanc::ImageAccessor& GetAlpha() const
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83 {
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84 return *(alpha_.get());
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85 }
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86
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87
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88 };
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89 }
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