Mercurial > hg > orthanc-stone
annotate Framework/Widgets/LayerWidget.cpp @ 86:02c3a7a4938f wasm
removing of the Start() mechanism
| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Fri, 26 May 2017 13:42:50 +0200 |
| parents | bd48431ac285 |
| children | 4a541cd4fa83 |
| rev | line source |
|---|---|
| 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 */, | |
| 147 ILayerSource& layer) const | |
| 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 { |
|
71
30c768873d47
OrthancSliceLoader::ScheduleLoadInstance
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
66
diff
changeset
|
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 { |
|
71
30c768873d47
OrthancSliceLoader::ScheduleLoadInstance
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
66
diff
changeset
|
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 | |
| 397 void LayerWidget::NotifyGeometryReady(ILayerSource& source) | |
| 398 { | |
| 399 size_t i; | |
| 400 if (LookupLayer(i, source)) | |
| 83 | 401 { |
|
71
30c768873d47
OrthancSliceLoader::ScheduleLoadInstance
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
66
diff
changeset
|
402 LOG(INFO) << "Geometry ready for layer " << i; |
| 83 | 403 layers_[i]->ScheduleLayerCreation(slice_); |
| 404 } | |
| 66 | 405 } |
| 406 | |
| 407 | |
| 77 | 408 void LayerWidget::NotifyGeometryError(ILayerSource& source) |
| 409 { | |
| 410 LOG(ERROR) << "Cannot get geometry"; | |
| 411 } | |
| 412 | |
| 413 | |
| 66 | 414 void LayerWidget::NotifySourceChange(ILayerSource& source) |
| 415 { | |
| 416 source.ScheduleLayerCreation(slice_); | |
| 417 } | |
| 418 | |
| 419 | |
| 420 void LayerWidget::NotifySliceChange(ILayerSource& source, | |
| 77 | 421 const Slice& slice) |
| 66 | 422 { |
| 77 | 423 if (slice.ContainsPlane(slice_)) |
| 66 | 424 { |
| 425 source.ScheduleLayerCreation(slice_); | |
| 426 } | |
| 427 } | |
| 428 | |
| 429 | |
| 430 void LayerWidget::NotifyLayerReady(ILayerRenderer* renderer, | |
| 431 ILayerSource& source, | |
| 77 | 432 const Slice& slice) |
| 66 | 433 { |
| 434 std::auto_ptr<ILayerRenderer> tmp(renderer); | |
| 435 | |
| 436 size_t index; | |
| 85 | 437 if (LookupLayer(index, source) && |
| 438 slice.ContainsPlane(slice_)) // Whether the slice comes from an older request | |
| 66 | 439 { |
| 77 | 440 LOG(INFO) << "Renderer ready for layer " << index; |
| 441 UpdateLayer(index, tmp.release(), slice); | |
| 66 | 442 } |
| 443 } | |
| 444 | |
| 445 | |
| 446 void LayerWidget::NotifyLayerError(ILayerSource& source, | |
| 85 | 447 const SliceGeometry& slice) |
| 66 | 448 { |
| 85 | 449 size_t index; |
| 450 | |
| 451 if (LookupLayer(index, source) && | |
| 452 slice.IsSamePlane(slice_, THIN_SLICE_THICKNESS)) // Whether the slice comes from an older request | |
| 453 { | |
|
86
02c3a7a4938f
removing of the Start() mechanism
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
85
diff
changeset
|
454 LOG(INFO) << "Unable to load a slice from layer " << index; |
| 85 | 455 |
| 456 double x1, y1, x2, y2; | |
| 457 if (GetAndFixExtent(x1, y1, x2, y2, source)) | |
| 458 { | |
| 459 UpdateLayer(index, new MissingLayerRenderer(x1, y1, x2, y2), Slice(slice, THIN_SLICE_THICKNESS)); | |
| 460 } | |
| 461 } | |
| 66 | 462 } |
| 463 } |