Mercurial > hg > orthanc-stone
annotate Framework/Widgets/LayerWidget.cpp @ 87:4a541cd4fa83 wasm
OrthancVolumeImageLoader
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Fri, 26 May 2017 15:31:58 +0200 |
parents | 02c3a7a4938f |
children | f244018a4e4b |
rev | line source |
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66 | 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 Osimis, 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 #include "LayerWidget.h" | |
23 | |
24 #include "../../Resources/Orthanc/Core/Logging.h" | |
85 | 25 #include "../Layers/MissingLayerRenderer.h" |
26 | |
27 static const double THIN_SLICE_THICKNESS = 100.0 * std::numeric_limits<double>::epsilon(); | |
66 | 28 |
29 namespace OrthancStone | |
30 { | |
31 class LayerWidget::Scene : public boost::noncopyable | |
32 { | |
33 private: | |
34 SliceGeometry slice_; | |
35 size_t countMissing_; | |
36 std::vector<ILayerRenderer*> renderers_; | |
37 | |
38 void DeleteLayer(size_t index) | |
39 { | |
40 if (index >= renderers_.size()) | |
41 { | |
42 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange); | |
43 } | |
44 | |
45 assert(countMissing_ <= renderers_.size()); | |
46 | |
47 if (renderers_[index] != NULL) | |
48 { | |
49 assert(countMissing_ < renderers_.size()); | |
50 delete renderers_[index]; | |
51 renderers_[index] = NULL; | |
52 countMissing_++; | |
53 } | |
54 } | |
55 | |
56 public: | |
57 Scene(const SliceGeometry& slice, | |
58 size_t countLayers) : | |
59 slice_(slice), | |
60 countMissing_(countLayers), | |
61 renderers_(countLayers, NULL) | |
62 { | |
63 } | |
64 | |
65 ~Scene() | |
66 { | |
67 for (size_t i = 0; i < renderers_.size(); i++) | |
68 { | |
69 DeleteLayer(i); | |
70 } | |
71 } | |
72 | |
73 void SetLayer(size_t index, | |
74 ILayerRenderer* renderer) // Takes ownership | |
75 { | |
76 if (renderer == NULL) | |
77 { | |
78 throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer); | |
79 } | |
80 | |
81 DeleteLayer(index); | |
82 | |
83 renderers_[index] = renderer; | |
84 countMissing_--; | |
85 } | |
86 | |
87 const SliceGeometry& GetSlice() const | |
88 { | |
89 return slice_; | |
90 } | |
91 | |
92 bool IsComplete() const | |
93 { | |
94 return countMissing_ == 0; | |
95 } | |
96 | |
97 bool RenderScene(CairoContext& context, | |
98 const ViewportGeometry& view) | |
99 { | |
100 bool fullQuality = true; | |
101 | |
102 for (size_t i = 0; i < renderers_.size(); i++) | |
103 { | |
104 if (renderers_[i] != NULL && | |
77 | 105 !renderers_[i]->RenderLayer(context, view, slice_)) |
66 | 106 { |
107 return false; | |
108 } | |
109 | |
110 if (renderers_[i] != NULL && | |
111 !renderers_[i]->IsFullQuality()) | |
112 { | |
113 fullQuality = false; | |
114 } | |
115 } | |
116 | |
117 if (!fullQuality) | |
118 { | |
119 double x, y; | |
120 view.MapDisplayToScene(x, y, static_cast<double>(view.GetDisplayWidth()) / 2.0, 10); | |
121 | |
122 cairo_t *cr = context.GetObject(); | |
123 cairo_translate(cr, x, y); | |
124 cairo_arc(cr, 0, 0, 5.0 / view.GetZoom(), 0, 2 * M_PI); | |
125 cairo_set_line_width(cr, 2.0 / view.GetZoom()); | |
126 cairo_set_source_rgb(cr, 1, 1, 1); | |
127 cairo_stroke_preserve(cr); | |
128 cairo_set_source_rgb(cr, 1, 0, 0); | |
129 cairo_fill(cr); | |
130 } | |
131 | |
132 return true; | |
133 } | |
134 | |
135 void SetLayerStyle(size_t index, | |
136 const RenderStyle& style) | |
137 { | |
138 if (renderers_[index] != NULL) | |
139 { | |
140 renderers_[index]->SetLayerStyle(style); | |
141 } | |
142 } | |
143 }; | |
144 | |
145 | |
146 bool LayerWidget::LookupLayer(size_t& index /* out */, | |
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147 const ILayerSource& layer) const |
66 | 148 { |
149 LayersIndex::const_iterator found = layersIndex_.find(&layer); | |
150 | |
151 if (found == layersIndex_.end()) | |
152 { | |
153 return false; | |
154 } | |
155 else | |
156 { | |
157 index = found->second; | |
158 assert(index < layers_.size() && | |
159 layers_[index] == &layer); | |
160 return true; | |
161 } | |
162 } | |
163 | |
85 | 164 |
165 bool LayerWidget::GetAndFixExtent(double& x1, | |
166 double& y1, | |
167 double& x2, | |
168 double& y2, | |
169 ILayerSource& source) const | |
170 { | |
171 if (source.GetExtent(x1, y1, x2, y2, slice_)) | |
172 { | |
173 if (x1 > x2) | |
174 { | |
175 std::swap(x1, x2); | |
176 } | |
177 | |
178 if (y1 > y2) | |
179 { | |
180 std::swap(y1, y2); | |
181 } | |
182 | |
183 return true; | |
184 } | |
185 else | |
186 { | |
187 return false; | |
188 } | |
189 } | |
190 | |
66 | 191 |
192 void LayerWidget::GetSceneExtent(double& x1, | |
193 double& y1, | |
194 double& x2, | |
195 double& y2) | |
196 { | |
197 bool first = true; | |
198 | |
199 for (size_t i = 0; i < layers_.size(); i++) | |
200 { | |
201 double ax, ay, bx, by; | |
202 | |
203 assert(layers_[i] != NULL); | |
85 | 204 if (GetAndFixExtent(ax, ay, bx, by, *layers_[i])) |
66 | 205 { |
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206 LOG(INFO) << "Extent of layer " << i << ": (" << ax << "," << ay << ")->(" << bx << "," << by << ")"; |
66 | 207 |
208 if (first) | |
209 { | |
210 x1 = ax; | |
211 y1 = ay; | |
212 x2 = bx; | |
213 y2 = by; | |
214 first = false; | |
215 } | |
216 else | |
217 { | |
218 x1 = std::min(x1, ax); | |
219 y1 = std::min(y1, ay); | |
220 x2 = std::max(x2, bx); | |
221 y2 = std::max(y2, by); | |
222 } | |
223 } | |
224 } | |
225 | |
226 if (first) | |
227 { | |
228 // Set a default extent of (-1,-1) -> (0,0) | |
229 x1 = -1; | |
230 y1 = -1; | |
231 x2 = 1; | |
232 y2 = 1; | |
233 } | |
234 | |
235 // Ensure the extent is non-empty | |
236 if (x1 >= x2) | |
237 { | |
238 double tmp = x1; | |
239 x1 = tmp - 0.5; | |
240 x2 = tmp + 0.5; | |
241 } | |
242 | |
243 if (y1 >= y2) | |
244 { | |
245 double tmp = y1; | |
246 y1 = tmp - 0.5; | |
247 y2 = tmp + 0.5; | |
248 } | |
249 } | |
250 | |
251 | |
252 bool LayerWidget::RenderScene(CairoContext& context, | |
253 const ViewportGeometry& view) | |
254 { | |
255 if (currentScene_.get() != NULL) | |
256 { | |
257 return currentScene_->RenderScene(context, view); | |
258 } | |
259 else | |
260 { | |
261 return true; | |
262 } | |
263 } | |
264 | |
265 | |
266 void LayerWidget::ResetPendingScene() | |
267 { | |
268 pendingScene_.reset(new Scene(slice_, layers_.size())); | |
269 } | |
270 | |
271 | |
272 void LayerWidget::UpdateLayer(size_t index, | |
273 ILayerRenderer* renderer, | |
77 | 274 const Slice& slice) |
66 | 275 { |
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276 LOG(INFO) << "Updating layer " << index; |
66 | 277 |
278 std::auto_ptr<ILayerRenderer> tmp(renderer); | |
279 | |
280 if (renderer == NULL) | |
281 { | |
282 throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer); | |
283 } | |
284 | |
285 if (index >= layers_.size()) | |
286 { | |
287 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange); | |
288 } | |
289 | |
290 assert(layers_.size() == styles_.size()); | |
291 renderer->SetLayerStyle(styles_[index]); | |
292 | |
293 if (currentScene_.get() != NULL && | |
78 | 294 slice.ContainsPlane(currentScene_->GetSlice())) |
66 | 295 { |
296 currentScene_->SetLayer(index, tmp.release()); | |
297 NotifyChange(); | |
298 } | |
299 else if (pendingScene_.get() != NULL && | |
78 | 300 slice.ContainsPlane(pendingScene_->GetSlice())) |
66 | 301 { |
302 pendingScene_->SetLayer(index, tmp.release()); | |
303 | |
304 if (currentScene_.get() == NULL || | |
305 pendingScene_->IsComplete()) | |
306 { | |
307 currentScene_ = pendingScene_; | |
308 NotifyChange(); | |
309 } | |
310 } | |
311 } | |
312 | |
313 | |
314 LayerWidget::LayerWidget() : | |
78 | 315 started_(false) |
66 | 316 { |
317 SetBackgroundCleared(true); | |
318 } | |
319 | |
320 | |
321 LayerWidget::~LayerWidget() | |
322 { | |
323 for (size_t i = 0; i < layers_.size(); i++) | |
324 { | |
325 delete layers_[i]; | |
326 } | |
327 } | |
328 | |
329 | |
330 size_t LayerWidget::AddLayer(ILayerSource* layer) // Takes ownership | |
331 { | |
332 if (layer == NULL) | |
333 { | |
334 throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer); | |
335 } | |
336 | |
337 size_t index = layers_.size(); | |
338 layers_.push_back(layer); | |
339 styles_.push_back(RenderStyle()); | |
340 layersIndex_[layer] = index; | |
341 | |
342 ResetPendingScene(); | |
343 layer->SetObserver(*this); | |
344 | |
345 return index; | |
346 } | |
347 | |
348 | |
349 void LayerWidget::SetLayerStyle(size_t layer, | |
350 const RenderStyle& style) | |
351 { | |
352 if (layer >= layers_.size()) | |
353 { | |
354 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange); | |
355 } | |
356 | |
357 assert(layers_.size() == styles_.size()); | |
358 styles_[layer] = style; | |
359 | |
360 if (currentScene_.get() != NULL) | |
361 { | |
362 currentScene_->SetLayerStyle(layer, style); | |
363 } | |
364 | |
365 if (pendingScene_.get() != NULL) | |
366 { | |
367 pendingScene_->SetLayerStyle(layer, style); | |
368 } | |
369 | |
370 NotifyChange(); | |
371 } | |
372 | |
373 | |
78 | 374 void LayerWidget::SetSlice(const SliceGeometry& slice) |
66 | 375 { |
85 | 376 if (!slice_.IsSamePlane(slice, THIN_SLICE_THICKNESS)) |
66 | 377 { |
378 if (currentScene_.get() == NULL || | |
379 (pendingScene_.get() != NULL && | |
380 pendingScene_->IsComplete())) | |
381 { | |
382 currentScene_ = pendingScene_; | |
383 } | |
384 | |
385 slice_ = slice; | |
386 ResetPendingScene(); | |
387 | |
85 | 388 for (size_t i = 0; i < layers_.size(); i++) |
66 | 389 { |
85 | 390 assert(layers_[i] != NULL); |
391 layers_[i]->ScheduleLayerCreation(slice_); | |
66 | 392 } |
393 } | |
394 } | |
395 | |
396 | |
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parents:
86
diff
changeset
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397 void LayerWidget::NotifyGeometryReady(const ILayerSource& source) |
66 | 398 { |
399 size_t i; | |
400 if (LookupLayer(i, source)) | |
83 | 401 { |
71
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parents:
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diff
changeset
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402 LOG(INFO) << "Geometry ready for layer " << i; |
83 | 403 layers_[i]->ScheduleLayerCreation(slice_); |
404 } | |
66 | 405 } |
406 | |
407 | |
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parents:
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diff
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408 void LayerWidget::NotifyGeometryError(const ILayerSource& source) |
77 | 409 { |
410 LOG(ERROR) << "Cannot get geometry"; | |
411 } | |
412 | |
413 | |
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parents:
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diff
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414 void LayerWidget::NotifyContentChange(const ILayerSource& source) |
66 | 415 { |
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parents:
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diff
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416 size_t index; |
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diff
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417 if (LookupLayer(index, source)) |
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parents:
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diff
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418 { |
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parents:
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diff
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419 layers_[index]->ScheduleLayerCreation(slice_); |
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parents:
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420 } |
66 | 421 } |
422 | |
423 | |
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OrthancVolumeImageLoader
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parents:
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diff
changeset
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424 void LayerWidget::NotifySliceChange(const ILayerSource& source, |
77 | 425 const Slice& slice) |
66 | 426 { |
77 | 427 if (slice.ContainsPlane(slice_)) |
66 | 428 { |
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parents:
86
diff
changeset
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429 size_t index; |
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parents:
86
diff
changeset
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430 if (LookupLayer(index, source)) |
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parents:
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diff
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431 { |
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parents:
86
diff
changeset
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432 layers_[index]->ScheduleLayerCreation(slice_); |
4a541cd4fa83
OrthancVolumeImageLoader
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parents:
86
diff
changeset
|
433 } |
66 | 434 } |
435 } | |
436 | |
437 | |
438 void LayerWidget::NotifyLayerReady(ILayerRenderer* renderer, | |
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parents:
86
diff
changeset
|
439 const ILayerSource& source, |
77 | 440 const Slice& slice) |
66 | 441 { |
442 std::auto_ptr<ILayerRenderer> tmp(renderer); | |
443 | |
444 size_t index; | |
85 | 445 if (LookupLayer(index, source) && |
446 slice.ContainsPlane(slice_)) // Whether the slice comes from an older request | |
66 | 447 { |
77 | 448 LOG(INFO) << "Renderer ready for layer " << index; |
449 UpdateLayer(index, tmp.release(), slice); | |
66 | 450 } |
451 } | |
452 | |
453 | |
87
4a541cd4fa83
OrthancVolumeImageLoader
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
86
diff
changeset
|
454 void LayerWidget::NotifyLayerError(const ILayerSource& source, |
85 | 455 const SliceGeometry& slice) |
66 | 456 { |
85 | 457 size_t index; |
458 | |
459 if (LookupLayer(index, source) && | |
460 slice.IsSamePlane(slice_, THIN_SLICE_THICKNESS)) // Whether the slice comes from an older request | |
461 { | |
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removing of the Start() mechanism
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diff
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462 LOG(INFO) << "Unable to load a slice from layer " << index; |
85 | 463 |
464 double x1, y1, x2, y2; | |
87
4a541cd4fa83
OrthancVolumeImageLoader
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parents:
86
diff
changeset
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465 if (GetAndFixExtent(x1, y1, x2, y2, *layers_[index])) |
85 | 466 { |
467 UpdateLayer(index, new MissingLayerRenderer(x1, y1, x2, y2), Slice(slice, THIN_SLICE_THICKNESS)); | |
468 } | |
469 } | |
66 | 470 } |
471 } |