Mercurial > hg > orthanc-stone
annotate Framework/Radiography/RadiographyWidget.cpp @ 1270:2d8ab34c8c91
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author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Fri, 31 Jan 2020 17:34:29 +0100 |
parents | 9c20ae049669 |
children | 7ec8fea061b9 |
rev | line source |
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413 | 1 /** |
2 * Stone of Orthanc | |
3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics | |
4 * Department, University Hospital of Liege, Belgium | |
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5 * Copyright (C) 2017-2020 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 { | |
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73 if (floatBuffer_.get() == NULL || |
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74 floatBuffer_->GetWidth() != width || |
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75 floatBuffer_->GetHeight() != height) |
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76 { |
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77 floatBuffer_.reset(new Orthanc::Image( |
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78 Orthanc::PixelFormat_Float32, width, height, false)); |
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79 |
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80 if (floatBuffer_.get() == NULL) |
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81 { |
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82 throw Orthanc::OrthancException(Orthanc::ErrorCode_NotEnoughMemory, "RadiographyWidget::RenderInternal: unable to allocate float buffer"); |
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83 } |
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84 } |
413 | 85 |
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86 if (cairoBuffer_.get() == NULL || |
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87 cairoBuffer_->GetWidth() != width || |
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88 cairoBuffer_->GetHeight() != height) |
413 | 89 { |
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90 cairoBuffer_.reset(new CairoSurface(width, height, false /* no alpha */)); |
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91 |
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92 if (cairoBuffer_.get() == NULL) |
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93 { |
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94 throw Orthanc::OrthancException(Orthanc::ErrorCode_NotEnoughMemory, "RadiographyWidget::RenderInternal: unable to allocate cairo buffer"); |
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95 } |
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96 } |
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97 |
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98 RenderBackground(*floatBuffer_, 0.0, 65535.0); |
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99 |
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100 scene_->Render(*floatBuffer_, GetView().GetMatrix(), interpolation, true); |
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102 // Conversion from Float32 to BGRA32 (cairo). Very similar to |
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103 // GrayscaleFrameRenderer => TODO MERGE? |
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104 Orthanc::ImageAccessor target; |
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105 cairoBuffer_->GetWriteableAccessor(target); |
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106 |
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107 bool invert = IsInvertedInternal(); |
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108 |
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109 for (unsigned int y = 0; y < height; y++) |
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110 { |
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111 const float* p = reinterpret_cast<const float*>(floatBuffer_->GetConstRow(y)); |
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112 uint8_t* q = reinterpret_cast<uint8_t*>(target.GetRow(y)); |
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113 |
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114 for (unsigned int x = 0; x < width; x++, p++, q += 4) |
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116 uint8_t v = 0; |
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117 if (*p >= 65535.0) |
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118 { |
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119 v = 255; |
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120 } |
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121 else if (*p <= 0.0) |
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123 v = 0; |
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124 } |
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125 else |
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126 { |
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127 v = static_cast<uint8_t>(*p / 256.0); |
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128 } |
413 | 129 |
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130 if (invert) |
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131 { |
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132 v = 255 - v; |
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133 } |
413 | 134 |
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135 q[0] = v; |
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136 q[1] = v; |
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137 q[2] = v; |
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138 q[3] = 255; |
413 | 139 } |
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140 } |
413 | 141 |
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142 return true; |
413 | 143 } |
144 | |
145 | |
146 bool RadiographyWidget::RenderScene(CairoContext& context, | |
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147 const Deprecated::ViewportGeometry& view) |
413 | 148 { |
149 cairo_t* cr = context.GetObject(); | |
150 | |
151 if (RenderInternal(context.GetWidth(), context.GetHeight(), interpolation_)) | |
152 { | |
153 // https://www.cairographics.org/FAQ/#paint_from_a_surface | |
154 cairo_save(cr); | |
155 cairo_identity_matrix(cr); | |
156 cairo_set_source_surface(cr, cairoBuffer_->GetObject(), 0, 0); | |
157 cairo_paint(cr); | |
158 cairo_restore(cr); | |
159 } | |
160 else | |
161 { | |
162 // https://www.cairographics.org/FAQ/#clear_a_surface | |
163 context.SetSourceColor(0, 0, 0); | |
164 cairo_paint(cr); | |
165 } | |
166 | |
167 if (hasSelection_) | |
168 { | |
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169 scene_->DrawBorder( |
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170 context, static_cast<unsigned int>(selectedLayer_), view.GetZoom()); |
413 | 171 } |
172 | |
173 return true; | |
174 } | |
175 | |
176 | |
177 RadiographyWidget::RadiographyWidget(MessageBroker& broker, | |
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178 boost::shared_ptr<RadiographyScene> scene, |
413 | 179 const std::string& name) : |
180 WorldSceneWidget(name), | |
181 IObserver(broker), | |
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182 IObservable(broker), |
413 | 183 invert_(false), |
184 interpolation_(ImageInterpolation_Nearest), | |
185 hasSelection_(false), | |
186 selectedLayer_(0) // Dummy initialization | |
187 { | |
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188 SetScene(scene); |
413 | 189 } |
190 | |
191 | |
192 void RadiographyWidget::Select(size_t layer) | |
193 { | |
194 hasSelection_ = true; | |
195 selectedLayer_ = layer; | |
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196 |
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197 NotifyContentChanged(); |
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198 BroadcastMessage(SelectionChangedMessage(*this)); |
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199 } |
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200 |
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201 void RadiographyWidget::Unselect() |
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202 { |
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203 hasSelection_ = false; |
1256 | 204 |
205 NotifyContentChanged(); | |
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206 BroadcastMessage(SelectionChangedMessage(*this)); |
413 | 207 } |
208 | |
1237 | 209 bool RadiographyWidget::LookupSelectedLayer(size_t& layer) const |
413 | 210 { |
211 if (hasSelection_) | |
212 { | |
213 layer = selectedLayer_; | |
214 return true; | |
215 } | |
216 else | |
217 { | |
218 return false; | |
219 } | |
220 } | |
221 | |
222 | |
223 void RadiographyWidget::OnGeometryChanged(const RadiographyScene::GeometryChangedMessage& message) | |
224 { | |
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225 // LOG(INFO) << "Scene geometry has changed"; |
413 | 226 FitContent(); |
227 } | |
228 | |
229 | |
230 void RadiographyWidget::OnContentChanged(const RadiographyScene::ContentChangedMessage& message) | |
231 { | |
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232 // LOG(INFO) << "Scene content has changed"; |
413 | 233 NotifyContentChanged(); |
234 } | |
235 | |
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236 void RadiographyWidget::OnLayerRemoved(const RadiographyScene::LayerRemovedMessage& message) |
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237 { |
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238 size_t removedLayerIndex = message.GetLayerIndex(); |
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239 if (hasSelection_ && selectedLayer_ == removedLayerIndex) |
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240 { |
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241 Unselect(); |
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242 } |
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243 NotifyContentChanged(); |
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244 } |
413 | 245 |
246 void RadiographyWidget::SetInvert(bool invert) | |
247 { | |
248 if (invert_ != invert) | |
249 { | |
250 invert_ = invert; | |
251 NotifyContentChanged(); | |
252 } | |
253 } | |
254 | |
255 | |
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256 void RadiographyWidget::SwitchInvert() |
413 | 257 { |
258 invert_ = !invert_; | |
259 NotifyContentChanged(); | |
260 } | |
261 | |
262 | |
263 void RadiographyWidget::SetInterpolation(ImageInterpolation interpolation) | |
264 { | |
265 if (interpolation_ != interpolation) | |
266 { | |
267 interpolation_ = interpolation; | |
268 NotifyContentChanged(); | |
269 } | |
270 } | |
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271 |
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272 void RadiographyWidget::SetScene(boost::shared_ptr<RadiographyScene> scene) |
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273 { |
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274 if (scene_ != NULL) |
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275 { |
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276 scene_->Unregister(this); |
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277 } |
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278 |
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279 scene_ = scene; |
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280 |
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281 scene_->RegisterObserverCallback( |
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282 new Callable<RadiographyWidget, RadiographyScene::GeometryChangedMessage> |
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283 (*this, &RadiographyWidget::OnGeometryChanged)); |
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284 |
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285 scene_->RegisterObserverCallback( |
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286 new Callable<RadiographyWidget, RadiographyScene::ContentChangedMessage> |
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287 (*this, &RadiographyWidget::OnContentChanged)); |
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288 |
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289 scene_->RegisterObserverCallback( |
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290 new Callable<RadiographyWidget, RadiographyScene::LayerRemovedMessage> |
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291 (*this, &RadiographyWidget::OnLayerRemoved)); |
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292 |
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293 Unselect(); |
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294 |
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295 NotifyContentChanged(); |
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296 |
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297 // force redraw |
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298 FitContent(); |
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299 } |
413 | 300 } |