Mercurial > hg > orthanc-stone
annotate Framework/Radiography/RadiographyWidget.cpp @ 1240:8f6c2f9d0fe2
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author | Benjamin Golinvaux <bgo@osimis.io> |
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date | Fri, 20 Dec 2019 15:50:24 +0100 |
parents | e257b91fae2c |
children | a4bb8c2dd211 771913258728 |
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 | |
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 { | |
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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 } |
413 | 80 |
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81 if (cairoBuffer_.get() == NULL || |
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82 cairoBuffer_->GetWidth() != width || |
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83 cairoBuffer_->GetHeight() != height) |
413 | 84 { |
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85 cairoBuffer_.reset(new CairoSurface(width, height, false /* no alpha */)); |
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86 } |
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87 |
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88 RenderBackground(*floatBuffer_, 0.0, 65535.0); |
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89 |
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90 scene_->Render(*floatBuffer_, GetView().GetMatrix(), interpolation, true); |
413 | 91 |
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92 // Conversion from Float32 to BGRA32 (cairo). Very similar to |
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93 // GrayscaleFrameRenderer => TODO MERGE? |
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94 Orthanc::ImageAccessor target; |
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95 cairoBuffer_->GetWriteableAccessor(target); |
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96 |
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97 bool invert = IsInvertedInternal(); |
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98 |
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99 for (unsigned int y = 0; y < height; y++) |
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100 { |
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101 const float* p = reinterpret_cast<const float*>(floatBuffer_->GetConstRow(y)); |
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102 uint8_t* q = reinterpret_cast<uint8_t*>(target.GetRow(y)); |
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103 |
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104 for (unsigned int x = 0; x < width; x++, p++, q += 4) |
413 | 105 { |
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106 uint8_t v = 0; |
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107 if (*p >= 65535.0) |
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108 { |
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109 v = 255; |
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110 } |
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111 else if (*p <= 0.0) |
413 | 112 { |
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113 v = 0; |
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114 } |
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115 else |
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116 { |
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117 v = static_cast<uint8_t>(*p / 256.0); |
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118 } |
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120 if (invert) |
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121 { |
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122 v = 255 - v; |
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123 } |
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125 q[0] = v; |
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126 q[1] = v; |
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127 q[2] = v; |
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128 q[3] = 255; |
413 | 129 } |
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130 } |
413 | 131 |
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132 return true; |
413 | 133 } |
134 | |
135 | |
136 bool RadiographyWidget::RenderScene(CairoContext& context, | |
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137 const Deprecated::ViewportGeometry& view) |
413 | 138 { |
139 cairo_t* cr = context.GetObject(); | |
140 | |
141 if (RenderInternal(context.GetWidth(), context.GetHeight(), interpolation_)) | |
142 { | |
143 // https://www.cairographics.org/FAQ/#paint_from_a_surface | |
144 cairo_save(cr); | |
145 cairo_identity_matrix(cr); | |
146 cairo_set_source_surface(cr, cairoBuffer_->GetObject(), 0, 0); | |
147 cairo_paint(cr); | |
148 cairo_restore(cr); | |
149 } | |
150 else | |
151 { | |
152 // https://www.cairographics.org/FAQ/#clear_a_surface | |
153 context.SetSourceColor(0, 0, 0); | |
154 cairo_paint(cr); | |
155 } | |
156 | |
157 if (hasSelection_) | |
158 { | |
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159 scene_->DrawBorder( |
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160 context, static_cast<unsigned int>(selectedLayer_), view.GetZoom()); |
413 | 161 } |
162 | |
163 return true; | |
164 } | |
165 | |
166 | |
167 RadiographyWidget::RadiographyWidget(MessageBroker& broker, | |
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168 boost::shared_ptr<RadiographyScene> scene, |
413 | 169 const std::string& name) : |
170 WorldSceneWidget(name), | |
171 IObserver(broker), | |
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172 IObservable(broker), |
413 | 173 invert_(false), |
174 interpolation_(ImageInterpolation_Nearest), | |
175 hasSelection_(false), | |
176 selectedLayer_(0) // Dummy initialization | |
177 { | |
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178 SetScene(scene); |
413 | 179 } |
180 | |
181 | |
182 void RadiographyWidget::Select(size_t layer) | |
183 { | |
184 hasSelection_ = true; | |
185 selectedLayer_ = layer; | |
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186 |
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187 NotifyContentChanged(); |
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188 BroadcastMessage(SelectionChangedMessage(*this)); |
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189 } |
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190 |
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191 void RadiographyWidget::Unselect() |
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192 { |
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193 hasSelection_ = false; |
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194 BroadcastMessage(SelectionChangedMessage(*this)); |
413 | 195 } |
196 | |
1237 | 197 bool RadiographyWidget::LookupSelectedLayer(size_t& layer) const |
413 | 198 { |
199 if (hasSelection_) | |
200 { | |
201 layer = selectedLayer_; | |
202 return true; | |
203 } | |
204 else | |
205 { | |
206 return false; | |
207 } | |
208 } | |
209 | |
210 | |
211 void RadiographyWidget::OnGeometryChanged(const RadiographyScene::GeometryChangedMessage& message) | |
212 { | |
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213 // LOG(INFO) << "Scene geometry has changed"; |
413 | 214 FitContent(); |
215 } | |
216 | |
217 | |
218 void RadiographyWidget::OnContentChanged(const RadiographyScene::ContentChangedMessage& message) | |
219 { | |
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220 // LOG(INFO) << "Scene content has changed"; |
413 | 221 NotifyContentChanged(); |
222 } | |
223 | |
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224 void RadiographyWidget::OnLayerRemoved(const RadiographyScene::LayerRemovedMessage& message) |
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225 { |
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226 size_t removedLayerIndex = message.GetLayerIndex(); |
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227 if (hasSelection_ && selectedLayer_ == removedLayerIndex) |
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228 { |
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229 Unselect(); |
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230 } |
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231 NotifyContentChanged(); |
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232 } |
413 | 233 |
234 void RadiographyWidget::SetInvert(bool invert) | |
235 { | |
236 if (invert_ != invert) | |
237 { | |
238 invert_ = invert; | |
239 NotifyContentChanged(); | |
240 } | |
241 } | |
242 | |
243 | |
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244 void RadiographyWidget::SwitchInvert() |
413 | 245 { |
246 invert_ = !invert_; | |
247 NotifyContentChanged(); | |
248 } | |
249 | |
250 | |
251 void RadiographyWidget::SetInterpolation(ImageInterpolation interpolation) | |
252 { | |
253 if (interpolation_ != interpolation) | |
254 { | |
255 interpolation_ = interpolation; | |
256 NotifyContentChanged(); | |
257 } | |
258 } | |
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259 |
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260 void RadiographyWidget::SetScene(boost::shared_ptr<RadiographyScene> scene) |
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261 { |
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262 if (scene_ != NULL) |
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263 { |
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264 scene_->Unregister(this); |
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265 } |
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266 |
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267 scene_ = scene; |
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268 |
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269 scene_->RegisterObserverCallback( |
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270 new Callable<RadiographyWidget, RadiographyScene::GeometryChangedMessage> |
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271 (*this, &RadiographyWidget::OnGeometryChanged)); |
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272 |
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273 scene_->RegisterObserverCallback( |
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274 new Callable<RadiographyWidget, RadiographyScene::ContentChangedMessage> |
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275 (*this, &RadiographyWidget::OnContentChanged)); |
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276 |
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277 scene_->RegisterObserverCallback( |
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278 new Callable<RadiographyWidget, RadiographyScene::LayerRemovedMessage> |
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279 (*this, &RadiographyWidget::OnLayerRemoved)); |
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280 |
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281 Unselect(); |
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282 |
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283 NotifyContentChanged(); |
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284 |
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285 // force redraw |
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286 FitContent(); |
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287 } |
413 | 288 } |