Mercurial > hg > orthanc-stone
annotate Framework/Radiography/RadiographyWidget.cpp @ 1117:383aa2a7d426 broker
integration mainline->broker
| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Mon, 04 Nov 2019 15:54:57 +0100 |
| parents | 05b2e71ed145 d33ae2b0db9d |
| children | 1a73f852810a |
| rev | line source |
|---|---|
| 413 | 1 /** |
| 2 * Stone of Orthanc | |
| 3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics | |
| 4 * Department, University Hospital of Liege, Belgium | |
| 439 | 5 * Copyright (C) 2017-2019 Osimis S.A., Belgium |
| 413 | 6 * |
| 7 * This program is free software: you can redistribute it and/or | |
| 8 * modify it under the terms of the GNU Affero General Public License | |
| 9 * as published by the Free Software Foundation, either version 3 of | |
| 10 * the License, or (at your option) any later version. | |
| 11 * | |
| 12 * This program is distributed in the hope that it will be useful, but | |
| 13 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 15 * Affero General Public License for more details. | |
| 16 * | |
| 17 * You should have received a copy of the GNU Affero General Public License | |
| 18 * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
| 19 **/ | |
| 20 | |
| 21 | |
| 22 #include "RadiographyWidget.h" | |
| 23 | |
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24 #include <Core/OrthancException.h> |
| 413 | 25 #include <Core/Images/Image.h> |
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26 #include <Core/Images/ImageProcessing.h> |
| 413 | 27 |
| 492 | 28 #include "RadiographyMaskLayer.h" |
| 413 | 29 |
| 30 namespace OrthancStone | |
| 31 { | |
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32 |
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33 bool RadiographyWidget::IsInvertedInternal() const |
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34 { |
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35 // MONOCHROME1 images must be inverted and the user can invert the |
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36 // image, too -> XOR the two |
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37 return (scene_->GetPreferredPhotomotricDisplayMode() == |
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38 RadiographyPhotometricDisplayMode_Monochrome1) ^ invert_; |
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39 } |
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40 |
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41 void RadiographyWidget::RenderBackground( |
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42 Orthanc::ImageAccessor& image, float minValue, float maxValue) |
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43 { |
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44 // wipe background before rendering |
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45 float backgroundValue = minValue; |
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46 |
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47 switch (scene_->GetPreferredPhotomotricDisplayMode()) |
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48 { |
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49 case RadiographyPhotometricDisplayMode_Monochrome1: |
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50 case RadiographyPhotometricDisplayMode_Default: |
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51 if (IsInvertedInternal()) |
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52 backgroundValue = maxValue; |
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53 else |
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54 backgroundValue = minValue; |
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55 break; |
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56 case RadiographyPhotometricDisplayMode_Monochrome2: |
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57 if (IsInvertedInternal()) |
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58 backgroundValue = minValue; |
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59 else |
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60 backgroundValue = maxValue; |
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61 break; |
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62 default: |
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63 throw Orthanc::OrthancException(Orthanc::ErrorCode_NotImplemented); |
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64 } |
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65 |
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66 Orthanc::ImageProcessing::Set(image, static_cast<int64_t>(backgroundValue)); |
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67 } |
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68 |
| 413 | 69 bool RadiographyWidget::RenderInternal(unsigned int width, |
| 70 unsigned int height, | |
| 71 ImageInterpolation interpolation) | |
| 72 { | |
| 73 float windowCenter, windowWidth; | |
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74 scene_->GetWindowingWithDefault(windowCenter, windowWidth); |
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75 |
| 413 | 76 float x0 = windowCenter - windowWidth / 2.0f; |
| 77 float x1 = windowCenter + windowWidth / 2.0f; | |
| 78 | |
| 79 if (windowWidth <= 0.001f) // Avoid division by zero at (*) | |
| 80 { | |
| 81 return false; | |
| 82 } | |
| 83 else | |
| 84 { | |
| 85 if (floatBuffer_.get() == NULL || | |
| 86 floatBuffer_->GetWidth() != width || | |
| 87 floatBuffer_->GetHeight() != height) | |
| 88 { | |
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89 floatBuffer_.reset(new Orthanc::Image( |
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90 Orthanc::PixelFormat_Float32, width, height, false)); |
| 413 | 91 } |
| 92 | |
| 93 if (cairoBuffer_.get() == NULL || | |
| 94 cairoBuffer_->GetWidth() != width || | |
| 95 cairoBuffer_->GetHeight() != height) | |
| 96 { | |
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97 cairoBuffer_.reset(new CairoSurface(width, height, false /* no alpha */)); |
| 413 | 98 } |
| 99 | |
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100 RenderBackground(*floatBuffer_, x0, x1); |
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101 |
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102 scene_->Render(*floatBuffer_, GetView().GetMatrix(), interpolation); |
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103 |
| 413 | 104 // Conversion from Float32 to BGRA32 (cairo). Very similar to |
| 105 // GrayscaleFrameRenderer => TODO MERGE? | |
| 106 | |
| 107 Orthanc::ImageAccessor target; | |
| 108 cairoBuffer_->GetWriteableAccessor(target); | |
| 109 | |
| 110 float scaling = 255.0f / (x1 - x0); | |
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111 |
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112 bool invert = IsInvertedInternal(); |
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113 |
| 413 | 114 for (unsigned int y = 0; y < height; y++) |
| 115 { | |
| 116 const float* p = reinterpret_cast<const float*>(floatBuffer_->GetConstRow(y)); | |
| 117 uint8_t* q = reinterpret_cast<uint8_t*>(target.GetRow(y)); | |
| 118 | |
| 119 for (unsigned int x = 0; x < width; x++, p++, q += 4) | |
| 120 { | |
| 121 uint8_t v = 0; | |
| 122 if (*p >= x1) | |
| 123 { | |
| 124 v = 255; | |
| 125 } | |
| 126 else if (*p <= x0) | |
| 127 { | |
| 128 v = 0; | |
| 129 } | |
| 130 else | |
| 131 { | |
| 132 // https://en.wikipedia.org/wiki/Linear_interpolation | |
| 133 v = static_cast<uint8_t>(scaling * (*p - x0)); // (*) | |
| 134 } | |
| 135 | |
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136 if (invert) |
| 413 | 137 { |
| 138 v = 255 - v; | |
| 139 } | |
| 140 | |
| 141 q[0] = v; | |
| 142 q[1] = v; | |
| 143 q[2] = v; | |
| 144 q[3] = 255; | |
| 145 } | |
| 146 } | |
| 147 | |
| 148 return true; | |
| 149 } | |
| 150 } | |
| 151 | |
| 152 | |
| 153 bool RadiographyWidget::RenderScene(CairoContext& context, | |
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154 const Deprecated::ViewportGeometry& view) |
| 413 | 155 { |
| 156 cairo_t* cr = context.GetObject(); | |
| 157 | |
| 158 if (RenderInternal(context.GetWidth(), context.GetHeight(), interpolation_)) | |
| 159 { | |
| 160 // https://www.cairographics.org/FAQ/#paint_from_a_surface | |
| 161 cairo_save(cr); | |
| 162 cairo_identity_matrix(cr); | |
| 163 cairo_set_source_surface(cr, cairoBuffer_->GetObject(), 0, 0); | |
| 164 cairo_paint(cr); | |
| 165 cairo_restore(cr); | |
| 166 } | |
| 167 else | |
| 168 { | |
| 169 // https://www.cairographics.org/FAQ/#clear_a_surface | |
| 170 context.SetSourceColor(0, 0, 0); | |
| 171 cairo_paint(cr); | |
| 172 } | |
| 173 | |
| 174 if (hasSelection_) | |
| 175 { | |
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176 scene_->DrawBorder( |
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177 context, static_cast<unsigned int>(selectedLayer_), view.GetZoom()); |
| 413 | 178 } |
| 179 | |
| 180 return true; | |
| 181 } | |
| 182 | |
| 183 | |
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184 RadiographyWidget::RadiographyWidget(boost::shared_ptr<RadiographyScene> scene, |
| 413 | 185 const std::string& name) : |
| 186 WorldSceneWidget(name), | |
| 187 invert_(false), | |
| 188 interpolation_(ImageInterpolation_Nearest), | |
| 189 hasSelection_(false), | |
| 190 selectedLayer_(0) // Dummy initialization | |
| 191 { | |
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192 SetScene(scene); |
| 413 | 193 } |
| 194 | |
| 195 | |
| 196 void RadiographyWidget::Select(size_t layer) | |
| 197 { | |
| 198 hasSelection_ = true; | |
| 199 selectedLayer_ = layer; | |
| 200 } | |
| 201 | |
| 492 | 202 bool RadiographyWidget::SelectMaskLayer(size_t index) |
| 203 { | |
| 204 std::vector<size_t> layerIndexes; | |
| 205 size_t count = 0; | |
| 206 scene_->GetLayersIndexes(layerIndexes); | |
| 207 | |
| 208 for (size_t i = 0; i < layerIndexes.size(); ++i) | |
| 209 { | |
| 210 const RadiographyMaskLayer* maskLayer = dynamic_cast<const RadiographyMaskLayer*>(&(scene_->GetLayer(layerIndexes[i]))); | |
| 211 if (maskLayer != NULL) | |
| 212 { | |
| 213 if (count == index) | |
| 214 { | |
| 215 Select(layerIndexes[i]); | |
| 216 return true; | |
| 217 } | |
| 218 count++; | |
| 219 } | |
| 220 } | |
| 221 | |
| 222 return false; | |
| 223 } | |
| 413 | 224 |
| 225 bool RadiographyWidget::LookupSelectedLayer(size_t& layer) | |
| 226 { | |
| 227 if (hasSelection_) | |
| 228 { | |
| 229 layer = selectedLayer_; | |
| 230 return true; | |
| 231 } | |
| 232 else | |
| 233 { | |
| 234 return false; | |
| 235 } | |
| 236 } | |
| 237 | |
| 238 | |
| 239 void RadiographyWidget::OnGeometryChanged(const RadiographyScene::GeometryChangedMessage& message) | |
| 240 { | |
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241 // LOG(INFO) << "Scene geometry has changed"; |
| 413 | 242 FitContent(); |
| 243 } | |
| 244 | |
| 245 | |
| 246 void RadiographyWidget::OnContentChanged(const RadiographyScene::ContentChangedMessage& message) | |
| 247 { | |
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248 // LOG(INFO) << "Scene content has changed"; |
| 413 | 249 NotifyContentChanged(); |
| 250 } | |
| 251 | |
| 252 | |
| 253 void RadiographyWidget::SetInvert(bool invert) | |
| 254 { | |
| 255 if (invert_ != invert) | |
| 256 { | |
| 257 invert_ = invert; | |
| 258 NotifyContentChanged(); | |
| 259 } | |
| 260 } | |
| 261 | |
| 262 | |
| 263 void RadiographyWidget::SwitchInvert() | |
| 264 { | |
| 265 invert_ = !invert_; | |
| 266 NotifyContentChanged(); | |
| 267 } | |
| 268 | |
| 269 | |
| 270 void RadiographyWidget::SetInterpolation(ImageInterpolation interpolation) | |
| 271 { | |
| 272 if (interpolation_ != interpolation) | |
| 273 { | |
| 274 interpolation_ = interpolation; | |
| 275 NotifyContentChanged(); | |
| 276 } | |
| 277 } | |
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278 |
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279 void RadiographyWidget::SetScene(boost::shared_ptr<RadiographyScene> scene) |
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280 { |
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281 scene_ = scene; |
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282 |
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283 Register<RadiographyScene::GeometryChangedMessage>(*scene_, &RadiographyWidget::OnGeometryChanged); |
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284 Register<RadiographyScene::ContentChangedMessage>(*scene_, &RadiographyWidget::OnContentChanged); |
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285 |
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286 NotifyContentChanged(); |
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287 |
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288 // force redraw |
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289 FitContent(); |
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290 } |
| 413 | 291 } |