Mercurial > hg > orthanc-stone
annotate Samples/WebAssembly/BasicMPR.cpp @ 825:9a6c7a5dcb76
reorganization
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Wed, 29 May 2019 15:45:15 +0200 |
parents | 15d493101c1e |
children | 2de01660debe |
rev | line source |
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820 | 1 /** |
2 * Stone of Orthanc | |
3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics | |
4 * Department, University Hospital of Liege, Belgium | |
5 * Copyright (C) 2017-2019 Osimis S.A., Belgium | |
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 | |
23 #include <emscripten.h> | |
24 #include <emscripten/fetch.h> | |
25 #include <emscripten/html5.h> | |
26 | |
27 #include "../../Framework/Loaders/OrthancSeriesVolumeProgressiveLoader.h" | |
28 #include "../../Framework/OpenGL/WebAssemblyOpenGLContext.h" | |
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29 #include "../../Framework/Oracle/SleepOracleCommand.h" |
825 | 30 #include "../../Framework/Oracle/WebAssemblyOracle.h" |
820 | 31 #include "../../Framework/Scene2D/GrayscaleStyleConfigurator.h" |
32 #include "../../Framework/Scene2D/OpenGLCompositor.h" | |
33 #include "../../Framework/Scene2D/PanSceneTracker.h" | |
34 #include "../../Framework/Scene2D/RotateSceneTracker.h" | |
35 #include "../../Framework/Scene2D/ZoomSceneTracker.h" | |
36 #include "../../Framework/Scene2DViewport/IFlexiblePointerTracker.h" | |
37 #include "../../Framework/Scene2DViewport/ViewportController.h" | |
38 #include "../../Framework/StoneInitialization.h" | |
39 #include "../../Framework/Volumes/VolumeSceneLayerSource.h" | |
40 | |
41 #include <Core/OrthancException.h> | |
42 #include <Core/Toolbox.h> | |
43 | |
44 | |
45 static const unsigned int FONT_SIZE = 32; | |
46 | |
47 | |
48 namespace OrthancStone | |
49 { | |
50 class WebAssemblyViewport : public boost::noncopyable | |
51 { | |
52 private: | |
53 // the construction order is important because compositor_ | |
54 // will hold a reference to the scene that belong to the | |
55 // controller_ object | |
56 OpenGL::WebAssemblyOpenGLContext context_; | |
57 boost::shared_ptr<ViewportController> controller_; | |
58 OpenGLCompositor compositor_; | |
59 | |
60 void SetupEvents(const std::string& canvas); | |
61 | |
62 public: | |
63 WebAssemblyViewport(MessageBroker& broker, | |
64 const std::string& canvas) : | |
65 context_(canvas), | |
66 controller_(new ViewportController(broker)), | |
67 compositor_(context_, *controller_->GetScene()) | |
68 { | |
69 compositor_.SetFont(0, Orthanc::EmbeddedResources::UBUNTU_FONT, | |
70 FONT_SIZE, Orthanc::Encoding_Latin1); | |
71 SetupEvents(canvas); | |
72 } | |
73 | |
74 Scene2D& GetScene() | |
75 { | |
76 return *controller_->GetScene(); | |
77 } | |
78 | |
79 const boost::shared_ptr<ViewportController>& GetController() | |
80 { | |
81 return controller_; | |
82 } | |
83 | |
84 void UpdateSize() | |
85 { | |
86 context_.UpdateSize(); | |
87 compositor_.UpdateSize(); | |
88 Refresh(); | |
89 } | |
90 | |
91 void Refresh() | |
92 { | |
93 compositor_.Refresh(); | |
94 } | |
95 | |
822 | 96 void FitContent() |
97 { | |
98 GetScene().FitContent(context_.GetCanvasWidth(), context_.GetCanvasHeight()); | |
99 } | |
100 | |
820 | 101 const std::string& GetCanvasIdentifier() const |
102 { | |
103 return context_.GetCanvasIdentifier(); | |
104 } | |
105 | |
106 ScenePoint2D GetPixelCenterCoordinates(int x, int y) const | |
107 { | |
108 return compositor_.GetPixelCenterCoordinates(x, y); | |
109 } | |
110 | |
111 unsigned int GetCanvasWidth() const | |
112 { | |
113 return context_.GetCanvasWidth(); | |
114 } | |
115 | |
116 unsigned int GetCanvasHeight() const | |
117 { | |
118 return context_.GetCanvasHeight(); | |
119 } | |
120 }; | |
121 | |
122 class ActiveTracker : public boost::noncopyable | |
123 { | |
124 private: | |
125 boost::shared_ptr<IFlexiblePointerTracker> tracker_; | |
126 std::string canvasIdentifier_; | |
127 bool insideCanvas_; | |
128 | |
129 public: | |
130 ActiveTracker(const boost::shared_ptr<IFlexiblePointerTracker>& tracker, | |
131 const WebAssemblyViewport& viewport) : | |
132 tracker_(tracker), | |
133 canvasIdentifier_(viewport.GetCanvasIdentifier()), | |
134 insideCanvas_(true) | |
135 { | |
136 if (tracker_.get() == NULL) | |
137 { | |
138 throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer); | |
139 } | |
140 } | |
141 | |
142 bool IsAlive() const | |
143 { | |
144 return tracker_->IsAlive(); | |
145 } | |
146 | |
147 void PointerMove(const PointerEvent& event) | |
148 { | |
149 tracker_->PointerMove(event); | |
150 } | |
151 | |
152 void PointerUp(const PointerEvent& event) | |
153 { | |
154 tracker_->PointerUp(event); | |
155 } | |
156 }; | |
157 } | |
158 | |
159 static OrthancStone::PointerEvent* ConvertMouseEvent( | |
160 const EmscriptenMouseEvent& source, | |
161 OrthancStone::WebAssemblyViewport& viewport) | |
162 { | |
163 std::auto_ptr<OrthancStone::PointerEvent> target( | |
164 new OrthancStone::PointerEvent); | |
165 | |
166 target->AddPosition(viewport.GetPixelCenterCoordinates( | |
167 source.targetX, source.targetY)); | |
168 target->SetAltModifier(source.altKey); | |
169 target->SetControlModifier(source.ctrlKey); | |
170 target->SetShiftModifier(source.shiftKey); | |
171 | |
172 return target.release(); | |
173 } | |
174 | |
175 std::auto_ptr<OrthancStone::ActiveTracker> tracker_; | |
176 | |
177 EM_BOOL OnMouseEvent(int eventType, | |
178 const EmscriptenMouseEvent *mouseEvent, | |
179 void *userData) | |
180 { | |
181 if (mouseEvent != NULL && | |
182 userData != NULL) | |
183 { | |
184 OrthancStone::WebAssemblyViewport& viewport = | |
185 *reinterpret_cast<OrthancStone::WebAssemblyViewport*>(userData); | |
186 | |
187 switch (eventType) | |
188 { | |
189 case EMSCRIPTEN_EVENT_CLICK: | |
190 { | |
191 static unsigned int count = 0; | |
192 char buf[64]; | |
193 sprintf(buf, "click %d", count++); | |
194 | |
195 std::auto_ptr<OrthancStone::TextSceneLayer> layer(new OrthancStone::TextSceneLayer); | |
196 layer->SetText(buf); | |
197 viewport.GetScene().SetLayer(100, layer.release()); | |
198 viewport.Refresh(); | |
199 break; | |
200 } | |
201 | |
202 case EMSCRIPTEN_EVENT_MOUSEDOWN: | |
203 { | |
204 boost::shared_ptr<OrthancStone::IFlexiblePointerTracker> t; | |
205 | |
206 { | |
207 std::auto_ptr<OrthancStone::PointerEvent> event( | |
208 ConvertMouseEvent(*mouseEvent, viewport)); | |
209 | |
210 switch (mouseEvent->button) | |
211 { | |
212 case 0: // Left button | |
213 emscripten_console_log("Creating RotateSceneTracker"); | |
214 t.reset(new OrthancStone::RotateSceneTracker( | |
215 viewport.GetController(), *event)); | |
216 break; | |
217 | |
218 case 1: // Middle button | |
219 emscripten_console_log("Creating PanSceneTracker"); | |
220 LOG(INFO) << "Creating PanSceneTracker" ; | |
221 t.reset(new OrthancStone::PanSceneTracker( | |
222 viewport.GetController(), *event)); | |
223 break; | |
224 | |
225 case 2: // Right button | |
226 emscripten_console_log("Creating ZoomSceneTracker"); | |
227 t.reset(new OrthancStone::ZoomSceneTracker( | |
228 viewport.GetController(), *event, viewport.GetCanvasWidth())); | |
229 break; | |
230 | |
231 default: | |
232 break; | |
233 } | |
234 } | |
235 | |
236 if (t.get() != NULL) | |
237 { | |
238 tracker_.reset( | |
239 new OrthancStone::ActiveTracker(t, viewport)); | |
240 viewport.Refresh(); | |
241 } | |
242 | |
243 break; | |
244 } | |
245 | |
246 case EMSCRIPTEN_EVENT_MOUSEMOVE: | |
247 if (tracker_.get() != NULL) | |
248 { | |
249 std::auto_ptr<OrthancStone::PointerEvent> event( | |
250 ConvertMouseEvent(*mouseEvent, viewport)); | |
251 tracker_->PointerMove(*event); | |
252 viewport.Refresh(); | |
253 } | |
254 break; | |
255 | |
256 case EMSCRIPTEN_EVENT_MOUSEUP: | |
257 if (tracker_.get() != NULL) | |
258 { | |
259 std::auto_ptr<OrthancStone::PointerEvent> event( | |
260 ConvertMouseEvent(*mouseEvent, viewport)); | |
261 tracker_->PointerUp(*event); | |
262 viewport.Refresh(); | |
263 if (!tracker_->IsAlive()) | |
264 tracker_.reset(); | |
265 } | |
266 break; | |
267 | |
268 default: | |
269 break; | |
270 } | |
271 } | |
272 | |
273 return true; | |
274 } | |
275 | |
276 | |
277 void OrthancStone::WebAssemblyViewport::SetupEvents(const std::string& canvas) | |
278 { | |
279 emscripten_set_mousedown_callback(canvas.c_str(), this, false, OnMouseEvent); | |
280 emscripten_set_mousemove_callback(canvas.c_str(), this, false, OnMouseEvent); | |
281 emscripten_set_mouseup_callback(canvas.c_str(), this, false, OnMouseEvent); | |
282 } | |
283 | |
284 | |
285 | |
286 | |
287 namespace OrthancStone | |
288 { | |
289 class VolumeSlicerViewport : public IObserver | |
290 { | |
291 private: | |
292 OrthancStone::WebAssemblyViewport viewport_; | |
293 std::auto_ptr<VolumeSceneLayerSource> source_; | |
294 VolumeProjection projection_; | |
295 std::vector<CoordinateSystem3D> planes_; | |
296 size_t currentPlane_; | |
297 | |
298 void Handle(const DicomVolumeImage::GeometryReadyMessage& message) | |
299 { | |
300 LOG(INFO) << "Geometry is available"; | |
301 | |
302 const VolumeImageGeometry& geometry = message.GetOrigin().GetGeometry(); | |
303 | |
304 const unsigned int depth = geometry.GetProjectionDepth(projection_); | |
305 currentPlane_ = depth / 2; | |
306 | |
307 planes_.resize(depth); | |
308 | |
309 for (unsigned int z = 0; z < depth; z++) | |
310 { | |
311 planes_[z] = geometry.GetProjectionSlice(projection_, z); | |
312 } | |
822 | 313 |
314 Refresh(); | |
315 | |
316 viewport_.FitContent(); | |
820 | 317 } |
318 | |
319 public: | |
320 VolumeSlicerViewport(MessageBroker& broker, | |
321 const std::string& canvas, | |
322 VolumeProjection projection) : | |
323 IObserver(broker), | |
324 viewport_(broker, canvas), | |
325 projection_(projection), | |
326 currentPlane_(0) | |
327 { | |
328 } | |
329 | |
330 void UpdateSize() | |
331 { | |
332 viewport_.UpdateSize(); | |
333 } | |
334 | |
335 void SetSlicer(int layerDepth, | |
336 const boost::shared_ptr<IVolumeSlicer>& slicer, | |
337 IObservable& loader, | |
338 ILayerStyleConfigurator* configurator) | |
339 { | |
340 if (source_.get() != NULL) | |
341 { | |
342 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls, | |
343 "Only one slicer can be registered"); | |
344 } | |
345 | |
346 loader.RegisterObserverCallback( | |
347 new Callable<VolumeSlicerViewport, DicomVolumeImage::GeometryReadyMessage> | |
348 (*this, &VolumeSlicerViewport::Handle)); | |
349 | |
350 source_.reset(new VolumeSceneLayerSource(viewport_.GetScene(), layerDepth, slicer)); | |
351 | |
352 if (configurator != NULL) | |
353 { | |
354 source_->SetConfigurator(configurator); | |
355 } | |
356 } | |
357 | |
358 void Refresh() | |
359 { | |
360 if (source_.get() != NULL && | |
361 currentPlane_ < planes_.size()) | |
362 { | |
363 source_->Update(planes_[currentPlane_]); | |
822 | 364 viewport_.Refresh(); |
820 | 365 } |
366 } | |
823 | 367 |
368 void Scroll(int delta) | |
369 { | |
370 if (!planes_.empty()) | |
371 { | |
372 int tmp = static_cast<int>(currentPlane_) + delta; | |
373 unsigned int next; | |
374 | |
375 if (tmp < 0) | |
376 { | |
377 next = 0; | |
378 } | |
379 else if (tmp >= static_cast<int>(planes_.size())) | |
380 { | |
381 next = planes_.size() - 1; | |
382 } | |
383 else | |
384 { | |
385 next = static_cast<size_t>(tmp); | |
386 } | |
387 | |
388 if (next != currentPlane_) | |
389 { | |
390 currentPlane_ = next; | |
391 Refresh(); | |
392 } | |
393 } | |
394 } | |
820 | 395 }; |
396 } | |
397 | |
398 | |
399 | |
400 | |
401 boost::shared_ptr<OrthancStone::DicomVolumeImage> ct_(new OrthancStone::DicomVolumeImage); | |
402 | |
403 boost::shared_ptr<OrthancStone::OrthancSeriesVolumeProgressiveLoader> loader_; | |
404 | |
405 std::auto_ptr<OrthancStone::VolumeSlicerViewport> viewport1_; | |
406 std::auto_ptr<OrthancStone::VolumeSlicerViewport> viewport2_; | |
407 std::auto_ptr<OrthancStone::VolumeSlicerViewport> viewport3_; | |
408 | |
409 OrthancStone::MessageBroker broker_; | |
410 OrthancStone::WebAssemblyOracle oracle_(broker_); | |
411 | |
412 | |
413 EM_BOOL OnWindowResize(int eventType, const EmscriptenUiEvent *uiEvent, void *userData) | |
414 { | |
415 try | |
416 { | |
417 if (viewport1_.get() != NULL) | |
418 { | |
419 viewport1_->UpdateSize(); | |
420 } | |
421 | |
422 if (viewport2_.get() != NULL) | |
423 { | |
424 viewport2_->UpdateSize(); | |
425 } | |
426 | |
427 if (viewport3_.get() != NULL) | |
428 { | |
429 viewport3_->UpdateSize(); | |
430 } | |
431 } | |
432 catch (Orthanc::OrthancException& e) | |
433 { | |
434 LOG(ERROR) << "Exception while updating canvas size: " << e.What(); | |
435 } | |
436 | |
437 return true; | |
438 } | |
439 | |
440 | |
441 | |
442 | |
443 EM_BOOL OnAnimationFrame(double time, void *userData) | |
444 { | |
445 try | |
446 { | |
447 if (viewport1_.get() != NULL) | |
448 { | |
449 viewport1_->Refresh(); | |
450 } | |
451 | |
452 if (viewport2_.get() != NULL) | |
453 { | |
454 viewport2_->Refresh(); | |
455 } | |
456 | |
457 if (viewport3_.get() != NULL) | |
458 { | |
459 viewport3_->Refresh(); | |
460 } | |
461 | |
462 return true; | |
463 } | |
464 catch (Orthanc::OrthancException& e) | |
465 { | |
466 LOG(ERROR) << "Exception in the animation loop, stopping now: " << e.What(); | |
467 return false; | |
468 } | |
469 } | |
470 | |
471 | |
823 | 472 static bool ctrlDown_ = false; |
473 | |
474 | |
475 EM_BOOL OnMouseWheel(int eventType, | |
476 const EmscriptenWheelEvent *wheelEvent, | |
477 void *userData) | |
478 { | |
479 try | |
480 { | |
481 if (userData != NULL) | |
482 { | |
483 int delta = 0; | |
484 | |
485 if (wheelEvent->deltaY < 0) | |
486 { | |
487 delta = -1; | |
488 } | |
489 | |
490 if (wheelEvent->deltaY > 0) | |
491 { | |
492 delta = 1; | |
493 } | |
494 | |
495 if (ctrlDown_) | |
496 { | |
497 delta *= 10; | |
498 } | |
499 | |
500 reinterpret_cast<OrthancStone::VolumeSlicerViewport*>(userData)->Scroll(delta); | |
501 } | |
502 } | |
503 catch (Orthanc::OrthancException& e) | |
504 { | |
505 LOG(ERROR) << "Exception in the wheel event: " << e.What(); | |
506 } | |
507 | |
508 return true; | |
509 } | |
510 | |
511 | |
512 EM_BOOL OnKey(int eventType, | |
513 const EmscriptenKeyboardEvent *keyEvent, | |
514 void *userData) | |
515 { | |
516 ctrlDown_ = keyEvent->ctrlKey; | |
517 return false; | |
518 } | |
519 | |
520 | |
521 | |
522 | |
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523 namespace OrthancStone |
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524 { |
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525 class TestSleep : public IObserver |
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526 { |
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527 private: |
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528 WebAssemblyOracle& oracle_; |
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529 |
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530 void Schedule() |
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531 { |
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532 oracle_.Schedule(*this, new OrthancStone::SleepOracleCommand(2000)); |
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533 } |
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534 |
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535 void Handle(const SleepOracleCommand::TimeoutMessage& message) |
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536 { |
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537 LOG(INFO) << "TIMEOUT"; |
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538 Schedule(); |
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539 } |
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540 |
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541 public: |
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542 TestSleep(MessageBroker& broker, |
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543 WebAssemblyOracle& oracle) : |
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544 IObserver(broker), |
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545 oracle_(oracle) |
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546 { |
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547 oracle.RegisterObserverCallback( |
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548 new Callable<TestSleep, SleepOracleCommand::TimeoutMessage> |
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549 (*this, &TestSleep::Handle)); |
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550 |
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551 LOG(INFO) << "STARTING"; |
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552 Schedule(); |
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553 } |
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554 }; |
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555 |
825 | 556 static TestSleep testSleep(broker_, oracle_); |
824
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parents:
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557 } |
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
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changeset
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558 |
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support of SleepOracleCommand in WebAssemblyOracle
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
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559 |
820 | 560 extern "C" |
561 { | |
562 int main(int argc, char const *argv[]) | |
563 { | |
564 OrthancStone::StoneInitialize(); | |
565 Orthanc::Logging::EnableInfoLevel(true); | |
566 // Orthanc::Logging::EnableTraceLevel(true); | |
567 EM_ASM(window.dispatchEvent(new CustomEvent("WebAssemblyLoaded"));); | |
568 } | |
569 | |
570 EMSCRIPTEN_KEEPALIVE | |
571 void Initialize() | |
572 { | |
573 try | |
574 { | |
575 loader_.reset(new OrthancStone::OrthancSeriesVolumeProgressiveLoader(ct_, oracle_, oracle_)); | |
576 | |
577 viewport1_.reset(new OrthancStone::VolumeSlicerViewport(broker_, "mycanvas1", OrthancStone::VolumeProjection_Axial)); | |
578 viewport1_->SetSlicer(0, loader_, *loader_, new OrthancStone::GrayscaleStyleConfigurator); | |
579 viewport1_->UpdateSize(); | |
580 | |
581 viewport2_.reset(new OrthancStone::VolumeSlicerViewport(broker_, "mycanvas2", OrthancStone::VolumeProjection_Coronal)); | |
582 viewport2_->SetSlicer(0, loader_, *loader_, new OrthancStone::GrayscaleStyleConfigurator); | |
583 viewport2_->UpdateSize(); | |
584 | |
585 viewport3_.reset(new OrthancStone::VolumeSlicerViewport(broker_, "mycanvas3", OrthancStone::VolumeProjection_Sagittal)); | |
586 viewport3_->SetSlicer(0, loader_, *loader_, new OrthancStone::GrayscaleStyleConfigurator); | |
587 viewport3_->UpdateSize(); | |
588 | |
589 emscripten_set_resize_callback("#window", NULL, false, OnWindowResize); | |
823 | 590 |
591 emscripten_set_wheel_callback("mycanvas1", viewport1_.get(), false, OnMouseWheel); | |
592 emscripten_set_wheel_callback("mycanvas2", viewport2_.get(), false, OnMouseWheel); | |
593 emscripten_set_wheel_callback("mycanvas3", viewport3_.get(), false, OnMouseWheel); | |
594 | |
595 emscripten_set_keydown_callback("#window", NULL, false, OnKey); | |
596 emscripten_set_keyup_callback("#window", NULL, false, OnKey); | |
820 | 597 |
598 emscripten_request_animation_frame_loop(OnAnimationFrame, NULL); | |
599 | |
600 loader_->LoadSeries("a04ecf01-79b2fc33-58239f7e-ad9db983-28e81afa"); | |
601 } | |
602 catch (Orthanc::OrthancException& e) | |
603 { | |
604 LOG(ERROR) << "Exception during Initialize(): " << e.What(); | |
605 } | |
606 } | |
607 } |