Mercurial > hg > orthanc-stone
annotate Samples/WebAssembly/BasicMPR.cpp @ 1313:f30905f5d246 broker
Added support for OnGenericSdlEvent to GuiAdapter.
This makes it possible to piggyback app-specific logic
to special events (here, to support the Viewport refresh
events)
| author | Benjamin Golinvaux <bgo@osimis.io> |
|---|---|
| date | Mon, 16 Mar 2020 11:12:39 +0100 |
| parents | 8a0a62189f46 |
| children |
| rev | line source |
|---|---|
| 820 | 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 |
| 820 | 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 | |
| 826 | 23 #include "dev.h" |
| 24 | |
| 820 | 25 #include <emscripten.h> |
| 26 | |
| 27 #include "../../Framework/Loaders/OrthancSeriesVolumeProgressiveLoader.h" | |
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28 #include "../../Framework/Oracle/SleepOracleCommand.h" |
| 825 | 29 #include "../../Framework/Oracle/WebAssemblyOracle.h" |
| 820 | 30 #include "../../Framework/Scene2D/GrayscaleStyleConfigurator.h" |
| 31 #include "../../Framework/StoneInitialization.h" | |
| 32 #include "../../Framework/Volumes/VolumeSceneLayerSource.h" | |
| 33 | |
| 34 | |
| 35 namespace OrthancStone | |
| 36 { | |
| 826 | 37 class VolumeSlicerWidget : public IObserver |
| 820 | 38 { |
| 39 private: | |
| 40 OrthancStone::WebAssemblyViewport viewport_; | |
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41 std::unique_ptr<VolumeSceneLayerSource> source_; |
| 820 | 42 VolumeProjection projection_; |
| 43 std::vector<CoordinateSystem3D> planes_; | |
| 44 size_t currentPlane_; | |
| 45 | |
| 46 void Handle(const DicomVolumeImage::GeometryReadyMessage& message) | |
| 47 { | |
| 48 LOG(INFO) << "Geometry is available"; | |
| 49 | |
| 50 const VolumeImageGeometry& geometry = message.GetOrigin().GetGeometry(); | |
| 51 | |
| 52 const unsigned int depth = geometry.GetProjectionDepth(projection_); | |
| 53 currentPlane_ = depth / 2; | |
| 54 | |
| 55 planes_.resize(depth); | |
| 56 | |
| 57 for (unsigned int z = 0; z < depth; z++) | |
| 58 { | |
| 59 planes_[z] = geometry.GetProjectionSlice(projection_, z); | |
| 60 } | |
| 822 | 61 |
| 62 Refresh(); | |
| 63 | |
| 64 viewport_.FitContent(); | |
| 820 | 65 } |
| 66 | |
| 67 public: | |
| 826 | 68 VolumeSlicerWidget(MessageBroker& broker, |
| 820 | 69 const std::string& canvas, |
| 70 VolumeProjection projection) : | |
| 71 IObserver(broker), | |
| 72 viewport_(broker, canvas), | |
| 73 projection_(projection), | |
| 74 currentPlane_(0) | |
| 75 { | |
| 76 } | |
| 77 | |
| 78 void UpdateSize() | |
| 79 { | |
| 80 viewport_.UpdateSize(); | |
| 81 } | |
| 82 | |
| 83 void SetSlicer(int layerDepth, | |
| 84 const boost::shared_ptr<IVolumeSlicer>& slicer, | |
| 85 IObservable& loader, | |
| 86 ILayerStyleConfigurator* configurator) | |
| 87 { | |
| 88 if (source_.get() != NULL) | |
| 89 { | |
| 90 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls, | |
| 91 "Only one slicer can be registered"); | |
| 92 } | |
| 93 | |
| 94 loader.RegisterObserverCallback( | |
| 826 | 95 new Callable<VolumeSlicerWidget, DicomVolumeImage::GeometryReadyMessage> |
| 96 (*this, &VolumeSlicerWidget::Handle)); | |
| 820 | 97 |
| 98 source_.reset(new VolumeSceneLayerSource(viewport_.GetScene(), layerDepth, slicer)); | |
| 99 | |
| 100 if (configurator != NULL) | |
| 101 { | |
| 102 source_->SetConfigurator(configurator); | |
| 103 } | |
| 104 } | |
| 105 | |
| 106 void Refresh() | |
| 107 { | |
| 108 if (source_.get() != NULL && | |
| 109 currentPlane_ < planes_.size()) | |
| 110 { | |
| 111 source_->Update(planes_[currentPlane_]); | |
| 822 | 112 viewport_.Refresh(); |
| 820 | 113 } |
| 114 } | |
| 823 | 115 |
| 826 | 116 size_t GetSlicesCount() const |
| 117 { | |
| 118 return planes_.size(); | |
| 119 } | |
| 120 | |
| 823 | 121 void Scroll(int delta) |
| 122 { | |
| 123 if (!planes_.empty()) | |
| 124 { | |
| 125 int tmp = static_cast<int>(currentPlane_) + delta; | |
| 126 unsigned int next; | |
| 127 | |
| 128 if (tmp < 0) | |
| 129 { | |
| 130 next = 0; | |
| 131 } | |
| 132 else if (tmp >= static_cast<int>(planes_.size())) | |
| 133 { | |
| 134 next = planes_.size() - 1; | |
| 135 } | |
| 136 else | |
| 137 { | |
| 138 next = static_cast<size_t>(tmp); | |
| 139 } | |
| 140 | |
| 141 if (next != currentPlane_) | |
| 142 { | |
| 143 currentPlane_ = next; | |
| 144 Refresh(); | |
| 145 } | |
| 146 } | |
| 147 } | |
| 820 | 148 }; |
| 149 } | |
| 150 | |
| 151 | |
| 152 | |
| 153 | |
| 154 boost::shared_ptr<OrthancStone::DicomVolumeImage> ct_(new OrthancStone::DicomVolumeImage); | |
| 155 | |
| 156 boost::shared_ptr<OrthancStone::OrthancSeriesVolumeProgressiveLoader> loader_; | |
| 157 | |
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158 std::unique_ptr<OrthancStone::VolumeSlicerWidget> widget1_; |
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159 std::unique_ptr<OrthancStone::VolumeSlicerWidget> widget2_; |
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160 std::unique_ptr<OrthancStone::VolumeSlicerWidget> widget3_; |
| 820 | 161 |
| 162 OrthancStone::MessageBroker broker_; | |
| 163 OrthancStone::WebAssemblyOracle oracle_(broker_); | |
| 164 | |
| 165 | |
| 166 EM_BOOL OnWindowResize(int eventType, const EmscriptenUiEvent *uiEvent, void *userData) | |
| 167 { | |
| 168 try | |
| 169 { | |
| 826 | 170 if (widget1_.get() != NULL) |
| 820 | 171 { |
| 826 | 172 widget1_->UpdateSize(); |
| 820 | 173 } |
| 174 | |
| 826 | 175 if (widget2_.get() != NULL) |
| 820 | 176 { |
| 826 | 177 widget2_->UpdateSize(); |
| 820 | 178 } |
| 179 | |
| 826 | 180 if (widget3_.get() != NULL) |
| 820 | 181 { |
| 826 | 182 widget3_->UpdateSize(); |
| 820 | 183 } |
| 184 } | |
| 185 catch (Orthanc::OrthancException& e) | |
| 186 { | |
| 187 LOG(ERROR) << "Exception while updating canvas size: " << e.What(); | |
| 188 } | |
| 189 | |
| 190 return true; | |
| 191 } | |
| 192 | |
| 193 | |
| 194 | |
| 195 | |
| 196 EM_BOOL OnAnimationFrame(double time, void *userData) | |
| 197 { | |
| 198 try | |
| 199 { | |
| 826 | 200 if (widget1_.get() != NULL) |
| 820 | 201 { |
| 826 | 202 widget1_->Refresh(); |
| 820 | 203 } |
| 204 | |
| 826 | 205 if (widget2_.get() != NULL) |
| 820 | 206 { |
| 826 | 207 widget2_->Refresh(); |
| 820 | 208 } |
| 209 | |
| 826 | 210 if (widget3_.get() != NULL) |
| 820 | 211 { |
| 826 | 212 widget3_->Refresh(); |
| 820 | 213 } |
| 214 | |
| 215 return true; | |
| 216 } | |
| 217 catch (Orthanc::OrthancException& e) | |
| 218 { | |
| 219 LOG(ERROR) << "Exception in the animation loop, stopping now: " << e.What(); | |
| 220 return false; | |
| 221 } | |
| 222 } | |
| 223 | |
| 224 | |
| 823 | 225 static bool ctrlDown_ = false; |
| 226 | |
| 227 | |
| 228 EM_BOOL OnMouseWheel(int eventType, | |
| 229 const EmscriptenWheelEvent *wheelEvent, | |
| 230 void *userData) | |
| 231 { | |
| 232 try | |
| 233 { | |
| 234 if (userData != NULL) | |
| 235 { | |
| 236 int delta = 0; | |
| 237 | |
| 238 if (wheelEvent->deltaY < 0) | |
| 239 { | |
| 240 delta = -1; | |
| 241 } | |
| 242 | |
| 243 if (wheelEvent->deltaY > 0) | |
| 244 { | |
| 245 delta = 1; | |
| 246 } | |
| 247 | |
| 826 | 248 OrthancStone::VolumeSlicerWidget& widget = |
| 249 *reinterpret_cast<OrthancStone::VolumeSlicerWidget*>(userData); | |
| 250 | |
| 823 | 251 if (ctrlDown_) |
| 252 { | |
| 826 | 253 delta *= static_cast<int>(widget.GetSlicesCount() / 10); |
| 823 | 254 } |
| 826 | 255 |
| 256 widget.Scroll(delta); | |
| 823 | 257 } |
| 258 } | |
| 259 catch (Orthanc::OrthancException& e) | |
| 260 { | |
| 261 LOG(ERROR) << "Exception in the wheel event: " << e.What(); | |
| 262 } | |
| 263 | |
| 264 return true; | |
| 265 } | |
| 266 | |
| 267 | |
| 826 | 268 EM_BOOL OnKeyDown(int eventType, |
| 269 const EmscriptenKeyboardEvent *keyEvent, | |
| 270 void *userData) | |
| 823 | 271 { |
| 272 ctrlDown_ = keyEvent->ctrlKey; | |
| 273 return false; | |
| 274 } | |
| 275 | |
| 276 | |
| 826 | 277 EM_BOOL OnKeyUp(int eventType, |
| 278 const EmscriptenKeyboardEvent *keyEvent, | |
| 279 void *userData) | |
| 280 { | |
| 281 ctrlDown_ = false; | |
| 282 return false; | |
| 283 } | |
| 284 | |
| 285 | |
| 823 | 286 |
| 287 | |
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288 namespace OrthancStone |
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289 { |
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290 class TestSleep : public IObserver |
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291 { |
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292 private: |
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293 WebAssemblyOracle& oracle_; |
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294 |
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295 void Schedule() |
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296 { |
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297 oracle_.Schedule(*this, new OrthancStone::SleepOracleCommand(2000)); |
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298 } |
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299 |
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300 void Handle(const SleepOracleCommand::TimeoutMessage& message) |
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301 { |
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302 LOG(INFO) << "TIMEOUT"; |
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303 Schedule(); |
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304 } |
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305 |
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306 public: |
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307 TestSleep(MessageBroker& broker, |
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308 WebAssemblyOracle& oracle) : |
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309 IObserver(broker), |
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310 oracle_(oracle) |
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311 { |
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312 oracle.RegisterObserverCallback( |
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313 new Callable<TestSleep, SleepOracleCommand::TimeoutMessage> |
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314 (*this, &TestSleep::Handle)); |
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315 |
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316 LOG(INFO) << "STARTING"; |
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317 Schedule(); |
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318 } |
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319 }; |
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320 |
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321 //static TestSleep testSleep(broker_, oracle_); |
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322 } |
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323 |
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324 |
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325 |
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326 static std::map<std::string, std::string> arguments_; |
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327 |
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328 static bool GetArgument(std::string& value, |
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329 const std::string& key) |
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330 { |
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331 std::map<std::string, std::string>::const_iterator found = arguments_.find(key); |
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332 |
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333 if (found == arguments_.end()) |
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334 { |
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335 return false; |
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336 } |
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337 else |
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338 { |
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339 value = found->second; |
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340 return true; |
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341 } |
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342 } |
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343 |
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344 |
| 820 | 345 extern "C" |
| 346 { | |
| 347 int main(int argc, char const *argv[]) | |
| 348 { | |
| 349 OrthancStone::StoneInitialize(); | |
| 350 Orthanc::Logging::EnableInfoLevel(true); | |
| 351 // Orthanc::Logging::EnableTraceLevel(true); | |
| 352 EM_ASM(window.dispatchEvent(new CustomEvent("WebAssemblyLoaded"));); | |
| 353 } | |
| 354 | |
| 355 EMSCRIPTEN_KEEPALIVE | |
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356 void SetArgument(const char* key, const char* value) |
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357 { |
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358 // This is called for each GET argument (cf. "app.js") |
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359 LOG(INFO) << "Received GET argument: [" << key << "] = [" << value << "]"; |
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360 arguments_[key] = value; |
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361 } |
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362 |
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363 EMSCRIPTEN_KEEPALIVE |
| 820 | 364 void Initialize() |
| 365 { | |
| 366 try | |
| 367 { | |
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368 oracle_.SetOrthancRoot(".."); |
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369 |
| 820 | 370 loader_.reset(new OrthancStone::OrthancSeriesVolumeProgressiveLoader(ct_, oracle_, oracle_)); |
| 371 | |
| 826 | 372 widget1_.reset(new OrthancStone::VolumeSlicerWidget(broker_, "mycanvas1", OrthancStone::VolumeProjection_Axial)); |
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373 { |
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374 std::unique_ptr<OrthancStone::GrayscaleStyleConfigurator> style(new OrthancStone::GrayscaleStyleConfigurator); |
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375 style->SetLinearInterpolation(true); |
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376 style->SetWindowing(OrthancStone::ImageWindowing_Bone); |
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377 widget1_->SetSlicer(0, loader_, *loader_, style.release()); |
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378 } |
| 826 | 379 widget1_->UpdateSize(); |
| 820 | 380 |
| 826 | 381 widget2_.reset(new OrthancStone::VolumeSlicerWidget(broker_, "mycanvas2", OrthancStone::VolumeProjection_Coronal)); |
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382 { |
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383 std::unique_ptr<OrthancStone::GrayscaleStyleConfigurator> style(new OrthancStone::GrayscaleStyleConfigurator); |
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384 style->SetLinearInterpolation(true); |
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385 style->SetWindowing(OrthancStone::ImageWindowing_Bone); |
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386 widget2_->SetSlicer(0, loader_, *loader_, style.release()); |
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387 } |
| 826 | 388 widget2_->UpdateSize(); |
| 820 | 389 |
| 826 | 390 widget3_.reset(new OrthancStone::VolumeSlicerWidget(broker_, "mycanvas3", OrthancStone::VolumeProjection_Sagittal)); |
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391 { |
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392 std::unique_ptr<OrthancStone::GrayscaleStyleConfigurator> style(new OrthancStone::GrayscaleStyleConfigurator); |
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393 style->SetLinearInterpolation(true); |
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394 style->SetWindowing(OrthancStone::ImageWindowing_Bone); |
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395 widget3_->SetSlicer(0, loader_, *loader_, style.release()); |
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396 } |
| 826 | 397 widget3_->UpdateSize(); |
| 820 | 398 |
| 399 emscripten_set_resize_callback("#window", NULL, false, OnWindowResize); | |
| 823 | 400 |
| 826 | 401 emscripten_set_wheel_callback("mycanvas1", widget1_.get(), false, OnMouseWheel); |
| 402 emscripten_set_wheel_callback("mycanvas2", widget2_.get(), false, OnMouseWheel); | |
| 403 emscripten_set_wheel_callback("mycanvas3", widget3_.get(), false, OnMouseWheel); | |
| 823 | 404 |
| 826 | 405 emscripten_set_keydown_callback("#window", NULL, false, OnKeyDown); |
| 406 emscripten_set_keyup_callback("#window", NULL, false, OnKeyUp); | |
| 820 | 407 |
| 408 emscripten_request_animation_frame_loop(OnAnimationFrame, NULL); | |
| 409 | |
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410 |
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411 std::string ct; |
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412 if (GetArgument(ct, "ct")) |
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413 { |
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414 //loader_->LoadSeries("a04ecf01-79b2fc33-58239f7e-ad9db983-28e81afa"); |
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415 loader_->LoadSeries(ct); |
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416 } |
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417 else |
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418 { |
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419 LOG(ERROR) << "No Orthanc identifier for the CT series was provided"; |
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420 } |
| 820 | 421 } |
| 422 catch (Orthanc::OrthancException& e) | |
| 423 { | |
| 424 LOG(ERROR) << "Exception during Initialize(): " << e.What(); | |
| 425 } | |
| 426 } | |
| 427 } |