src/Model/Model_Update.cpp

   1 // Copyright (C) 2014-2019  CEA/DEN, EDF R&D
   2 //
   3 // This library is free software; you can redistribute it and/or
   4 // modify it under the terms of the GNU Lesser General Public
   5 // License as published by the Free Software Foundation; either
   6 // version 2.1 of the License, or (at your option) any later version.
   7 //
   8 // This library is distributed in the hope that it will be useful,
   9 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  10 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  11 // Lesser General Public License for more details.
  12 //
  13 // You should have received a copy of the GNU Lesser General Public
  14 // License along with this library; if not, write to the Free Software
  15 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  16 //
  17 // See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
  18 //
  19
  20 #include <Model_Update.h>
  21 #include <Model_Document.h>
  22 #include <Model_Data.h>
  23 #include <Model_Objects.h>
  24 #include <Model_AttributeSelection.h>
  25 #include <ModelAPI_Feature.h>
  26 #include <ModelAPI_Data.h>
  27 #include <ModelAPI_Document.h>
  28 #include <ModelAPI_Events.h>
  29 #include <ModelAPI_AttributeReference.h>
  30 #include <ModelAPI_AttributeRefList.h>
  31 #include <ModelAPI_AttributeRefAttr.h>
  32 #include <ModelAPI_AttributeSelection.h>
  33 #include <ModelAPI_AttributeSelectionList.h>
  34 #include <ModelAPI_Result.h>
  35 #include <ModelAPI_ResultPart.h>
  36 #include <ModelAPI_Validator.h>
  37 #include <ModelAPI_CompositeFeature.h>
  38 #include <ModelAPI_Session.h>
  39 #include <ModelAPI_Tools.h>
  40 #include <ModelAPI_ResultBody.h>
  41 #include <ModelAPI_ResultPart.h>
  42 #include <ModelAPI_ResultConstruction.h>
  43 #include <GeomAPI_Shape.h>
  44 #include <GeomDataAPI_Point.h>
  45 #include <GeomDataAPI_Dir.h>
  46 #include <GeomDataAPI_Point2D.h>
  47 #include <Events_Loop.h>
  48 #include <Events_LongOp.h>
  49 #include <Events_InfoMessage.h>
  50 #include <Config_PropManager.h>
  51
  52 Model_Update MY_UPDATER_INSTANCE;  /// the only one instance initialized on load of the library
  53 //#define DEB_UPDATE
  54
  55 Model_Update::Model_Update()
  56 {
  57   Events_Loop* aLoop = Events_Loop::loop();
  58   static const Events_ID kChangedEvent = aLoop->eventByName("PreferenceChanged");
  59   aLoop->registerListener(this, kChangedEvent);
  60   static const Events_ID kCreatedEvent = Events_Loop::loop()->eventByName(EVENT_OBJECT_CREATED);
  61   aLoop->registerListener(this, kCreatedEvent);
  62   static const Events_ID kUpdatedEvent = Events_Loop::loop()->eventByName(EVENT_OBJECT_UPDATED);
  63   aLoop->registerListener(this, kUpdatedEvent);
  64   static const Events_ID kOpFinishEvent = aLoop->eventByName("FinishOperation");
  65   aLoop->registerListener(this, kOpFinishEvent);
  66   static const Events_ID kOpAbortEvent = aLoop->eventByName("AbortOperation");
  67   aLoop->registerListener(this, kOpAbortEvent);
  68   static const Events_ID kOpStartEvent = aLoop->eventByName("StartOperation");
  69   aLoop->registerListener(this, kOpStartEvent);
  70   static const Events_ID kStabilityEvent = aLoop->eventByName(EVENT_STABILITY_CHANGED);
  71   aLoop->registerListener(this, kStabilityEvent);
  72   static const Events_ID kPreviewBlockedEvent = aLoop->eventByName(EVENT_PREVIEW_BLOCKED);
  73   aLoop->registerListener(this, kPreviewBlockedEvent);
  74   static const Events_ID kPreviewRequestedEvent = aLoop->eventByName(EVENT_PREVIEW_REQUESTED);
  75   aLoop->registerListener(this, kPreviewRequestedEvent);
  76   static const Events_ID kReorderEvent = aLoop->eventByName(EVENT_ORDER_UPDATED);
  77   aLoop->registerListener(this, kReorderEvent);
  78   static const Events_ID kUpdatedSel = aLoop->eventByName(EVENT_UPDATE_SELECTION);
  79   aLoop->registerListener(this, kUpdatedSel);
  80   static const Events_ID kAutoRecomp = aLoop->eventByName(EVENT_AUTOMATIC_RECOMPUTATION_ENABLE);
  81   aLoop->registerListener(this, kAutoRecomp);
  82
  83   //  Config_PropManager::findProp("Model update", "automatic_rebuild")->value() == "true";
  84   myIsParamUpdated = false;
  85   myIsFinish = false;
  86   myIsProcessed = false;
  87   myIsPreviewBlocked = false;
  88   myUpdateBlocked = false;
  89 }
  90
  91 bool Model_Update::addModified(FeaturePtr theFeature, FeaturePtr theReason) {
  92
  93   if (!theFeature->data()->isValid())
  94     return false; // delete an extrusion created on the sketch
  95
  96
  97   bool isNotExecuted = theFeature->isPersistentResult() &&
  98     !std::dynamic_pointer_cast<Model_Document>((theFeature)->document())->executeFeatures();
  99   if (isNotExecuted) {
 100     redisplayWithResults(theFeature, ModelAPI_StateNothing, false); // redisplay even not executed
 101     if (!theReason.get()) // no reason => no construction reason
 102       return false;
 103     if (myNotPersistentRefs.find(theFeature) == myNotPersistentRefs.end()) {
 104       myNotPersistentRefs[theFeature].insert(theReason);
 105     } else {
 106       std::set<std::shared_ptr<ModelAPI_Feature> > aNewSet;
 107       aNewSet.insert(theReason);
 108       myNotPersistentRefs[theFeature] = aNewSet;
 109     }
 110     return false;
 111   }
 112
 113   // update arguments for "apply button" state change
 114   if ((!theFeature->isPreviewNeeded() && !myIsFinish) || myIsPreviewBlocked) {
 115     if (theReason.get())
 116       myProcessOnFinish[theFeature].insert(theReason);
 117     else if (myProcessOnFinish.find(theFeature) == myProcessOnFinish.end())
 118       myProcessOnFinish[theFeature] = std::set<std::shared_ptr<ModelAPI_Feature> >();
 119 #ifdef DEB_UPDATE
 120       std::cout<<"*** Add process on finish "<<theFeature->name()<<std::endl;
 121 #endif
 122     // keeps the currently updated features to avoid infinitive cycling here: where feature on
 123     // "updateArguments" sends "updated" (in selection attribute) and goes here again
 124     static std::set<FeaturePtr> aCurrentlyUpdated;
 125     if (aCurrentlyUpdated.find(theFeature) == aCurrentlyUpdated.end()) {
 126       aCurrentlyUpdated.insert(theFeature);
 127       updateArguments(theFeature);
 128       aCurrentlyUpdated.erase(theFeature);
 129     }
 130     // make it without conditions otherwise the apply button may have a bad state
 131     theFeature->data()->execState(ModelAPI_StateDone);
 132     static ModelAPI_ValidatorsFactory* aFactory = ModelAPI_Session::get()->validators();
 133      // need to be validated to update the "Apply" state if not previewed
 134     aFactory->validate(theFeature);
 135
 136     // to redisplay split's arguments presentation, even result is not computed
 137     if (!theFeature->isPreviewNeeded()) {
 138       static Events_Loop* aLoop = Events_Loop::loop();
 139       static const Events_ID kRedisplayEvent = aLoop->eventByName(EVENT_OBJECT_TO_REDISPLAY);
 140       ModelAPI_EventCreator::get()->sendUpdated(theFeature, kRedisplayEvent);
 141       aLoop->flush(kRedisplayEvent);
 142     }
 143
 144     if (!myIsPreviewBlocked)
 145       return true;
 146   }
 147   if (myModified.find(theFeature) != myModified.end()) {
 148     if (theReason.get()) {
 149 #ifdef DEB_UPDATE
 150       //std::cout<<"*** Add already modified "
 151       //   <<theFeature->name()<<" reason "<<theReason->name()<<std::endl;
 152 #endif
 153       myModified[theFeature].insert(theReason);
 154     }
 155     return true;
 156   }
 157   // do not add the disabled, but possibly the sub-elements are not disabled
 158   bool aIsDisabled = theFeature->isDisabled();
 159   if (!aIsDisabled) {
 160     std::set<std::shared_ptr<ModelAPI_Feature> > aNewSet;
 161     if (theFeature->data()->execState() == ModelAPI_StateMustBeUpdated ||
 162         theFeature->data()->execState() == ModelAPI_StateInvalidArgument || // issue 1519
 163         theFeature->data()->execState() == ModelAPI_StateExecFailed) {
 164       // do not forget that in this case all were the reasons
 165       aNewSet.insert(theFeature);
 166     } else {
 167       if (theReason.get())
 168         aNewSet.insert(theReason);
 169     }
 170     myModified[theFeature] = aNewSet;
 171 #ifdef DEB_UPDATE
 172     if (theReason.get()) {
 173       //std::cout<<"*** Add modified "<<theFeature->name()
 174       //  <<" reason "<<theReason->name()<<std::endl;
 175     } else {
 176       //std::cout<<"*** Add modified "<<theFeature->name()<<std::endl;
 177     }
 178 #endif
 179   } else { // will be updated during the finish of the operation, or when it becomes enabled
 180     if (theFeature->data()->execState() == ModelAPI_StateDone ||
 181         theFeature->data()->execState() == ModelAPI_StateExecFailed) // fix issue 1819
 182       theFeature->data()->execState(ModelAPI_StateMustBeUpdated);
 183     else
 184       return true; // do not need iteration deeply if it is already marked as modified or so
 185 #ifdef DEB_UPDATE
 186     //std::cout<<"*** Set modified state "<<theFeature->name()<<std::endl;
 187 #endif
 188   }
 189   // clear processed and fill modified recursively
 190   const std::set<std::shared_ptr<ModelAPI_Attribute> >& aRefs = theFeature->data()->refsToMe();
 191   std::set<std::shared_ptr<ModelAPI_Attribute> >::const_iterator aRefIter = aRefs.cbegin();
 192   for(; aRefIter != aRefs.cend(); aRefIter++) {
 193     if ((*aRefIter)->isArgument()) {
 194       FeaturePtr aReferenced = std::dynamic_pointer_cast<ModelAPI_Feature>((*aRefIter)->owner());
 195       if (aReferenced.get()) {
 196         addModified(aReferenced, theFeature);
 197       }
 198     }
 199   }
 200   // process also results
 201   std::list<ResultPtr> allResults; // list of this feature and results
 202   ModelAPI_Tools::allResults(theFeature, allResults);
 203   std::list<ResultPtr>::iterator aRes = allResults.begin();
 204   for(; aRes != allResults.end(); aRes++) {
 205     const std::set<std::shared_ptr<ModelAPI_Attribute> >& aRefs = (*aRes)->data()->refsToMe();
 206     std::set<std::shared_ptr<ModelAPI_Attribute> >::const_iterator aRefIter = aRefs.cbegin();
 207     for(; aRefIter != aRefs.cend(); aRefIter++) {
 208       if ((*aRefIter)->isArgument()) {
 209         FeaturePtr aReferenced = std::dynamic_pointer_cast<ModelAPI_Feature>((*aRefIter)->owner());
 210         if (aReferenced.get()) {
 211           addModified(aReferenced, theFeature);
 212         }
 213       }
 214     }
 215   }
 216
 217   // also add part feature that contains this feature to the modified
 218   if (theFeature->document()->kind() != "PartSet") {
 219     FeaturePtr aPart = ModelAPI_Tools::findPartFeature(
 220       ModelAPI_Session::get()->moduleDocument(), theFeature->document());
 221     if (aPart.get())
 222       addModified(aPart, theFeature);
 223   }
 224   return true;
 225 }
 226
 227 void Model_Update::processEvent(const std::shared_ptr<Events_Message>& theMessage)
 228 {
 229   static Events_Loop* aLoop = Events_Loop::loop();
 230   static ModelAPI_ValidatorsFactory* aFactory = ModelAPI_Session::get()->validators();
 231   static const Events_ID kCreatedEvent = aLoop->eventByName(EVENT_OBJECT_CREATED);
 232   static const Events_ID kUpdatedEvent = aLoop->eventByName(EVENT_OBJECT_UPDATED);
 233   static const Events_ID kOpFinishEvent = aLoop->eventByName("FinishOperation");
 234   static const Events_ID kOpAbortEvent = aLoop->eventByName("AbortOperation");
 235   static const Events_ID kOpStartEvent = aLoop->eventByName("StartOperation");
 236   static const Events_ID kStabilityEvent = aLoop->eventByName(EVENT_STABILITY_CHANGED);
 237   static const Events_ID kPreviewBlockedEvent = aLoop->eventByName(EVENT_PREVIEW_BLOCKED);
 238   static const Events_ID kPreviewRequestedEvent = aLoop->eventByName(EVENT_PREVIEW_REQUESTED);
 239   static const Events_ID kReorderEvent = aLoop->eventByName(EVENT_ORDER_UPDATED);
 240   static const Events_ID kRedisplayEvent = aLoop->eventByName(EVENT_OBJECT_TO_REDISPLAY);
 241   static const Events_ID kUpdatedSel = aLoop->eventByName(EVENT_UPDATE_SELECTION);
 242
 243 #ifdef DEB_UPDATE
 244   std::cout<<"****** Event "<<theMessage->eventID().eventText()<<std::endl;
 245 #endif
 246   // check the automatic update flag on any event
 247   bool aNewAutomaticState = ModelAPI_Session::get()->isAutoUpdateBlocked();
 248   if (myUpdateBlocked != aNewAutomaticState) {
 249     myUpdateBlocked = aNewAutomaticState;
 250     if (!myUpdateBlocked) { // process all modified features, even if preview is blocked
 251       bool aPreviewBlockedState = myIsPreviewBlocked; // to update the selected arguments
 252       myIsPreviewBlocked = false;
 253       // iterate everything and add features in state "MustBeUpdated" into modified
 254       std::list<std::shared_ptr<ModelAPI_Document> > allDocs =
 255         ModelAPI_Session::get()->allOpenedDocuments();
 256       std::list<std::shared_ptr<ModelAPI_Document> >::iterator aDoc = allDocs.begin();
 257       for(; aDoc != allDocs.end(); aDoc++) {
 258         std::list<std::shared_ptr<ModelAPI_Feature> > allFeats = (*aDoc)->allFeatures();
 259         std::list<std::shared_ptr<ModelAPI_Feature> >::iterator aFeat = allFeats.begin();
 260         for(; aFeat != allFeats.end(); aFeat++) {
 261           if ((*aFeat)->data()->isValid() &&
 262             (*aFeat)->data()->execState() == ModelAPI_StateMustBeUpdated) {
 263             addModified(*aFeat, FeaturePtr());
 264           }
 265         }
 266       }
 267       processFeatures();
 268       myIsPreviewBlocked = myIsPreviewBlocked;
 269     }
 270   }
 271
 272   if (theMessage->eventID() == kStabilityEvent) {
 273     updateStability(theMessage->sender());
 274     return;
 275   }
 276   if (theMessage->eventID() == kPreviewBlockedEvent) {
 277     myIsPreviewBlocked = true;
 278     return;
 279   }
 280   if (theMessage->eventID() == kPreviewRequestedEvent) {
 281     if (myIsPreviewBlocked) {
 282       bool anUpdateState = myUpdateBlocked;
 283       myUpdateBlocked = false;
 284       myIsPreviewBlocked = false;
 285       processFeatures();
 286       myIsPreviewBlocked = true;
 287       myUpdateBlocked = anUpdateState;
 288     }
 289     return;
 290   }
 291   if (theMessage->eventID() == kUpdatedSel) {
 292     std::shared_ptr<ModelAPI_ObjectUpdatedMessage> aMsg =
 293         std::dynamic_pointer_cast<ModelAPI_ObjectUpdatedMessage>(theMessage);
 294     updateSelection(aMsg->objects());
 295   }
 296   // creation is added to "update" to avoid recomputation twice:
 297   // on create and immediately after on update
 298   if (theMessage->eventID() == kCreatedEvent) {
 299     std::shared_ptr<ModelAPI_ObjectUpdatedMessage> aMsg =
 300         std::dynamic_pointer_cast<ModelAPI_ObjectUpdatedMessage>(theMessage);
 301     const std::set<ObjectPtr>& anObjs = aMsg->objects();
 302     std::set<ObjectPtr>::const_iterator anObjIter = anObjs.cbegin();
 303     std::list<ObjectPtr> aFeatures, aResults;
 304     for(; anObjIter != anObjs.cend(); anObjIter++) {
 305       if (std::dynamic_pointer_cast<Model_Document>((*anObjIter)->document())->executeFeatures()) {
 306         if ((*anObjIter)->groupName() == ModelAPI_Feature::group()) {
 307           // results creation means enabling, not update
 308           aFeatures.push_back(*anObjIter);
 309         } else {
 310           aResults.push_back(*anObjIter);
 311         }
 312       }
 313     }
 314     ModelAPI_EventCreator::get()->sendUpdated(aFeatures, kUpdatedEvent);
 315     ModelAPI_EventCreator::get()->sendUpdated(aResults, kRedisplayEvent);
 316     return;
 317   }
 318   if (theMessage->eventID() == kUpdatedEvent) {
 319     std::shared_ptr<ModelAPI_ObjectUpdatedMessage> aMsg =
 320         std::dynamic_pointer_cast<ModelAPI_ObjectUpdatedMessage>(theMessage);
 321     const std::set<ObjectPtr>& anObjs = aMsg->objects();
 322     std::set<ObjectPtr>::const_iterator anObjIter = anObjs.cbegin();
 323     bool aSomeModified = false; // check that features not changed: only redisplay is needed
 324     for(; anObjIter != anObjs.cend(); anObjIter++) {
 325       if (!(*anObjIter)->data()->isValid())
 326         continue;
 327 #ifdef DEB_UPDATE
 328       std::cout<<">>> in event updated "<<(*anObjIter)->groupName()<<
 329         " "<<(*anObjIter)->data()->name()<<std::endl;
 330 #endif
 331       if ((*anObjIter)->groupName() == ModelAPI_ResultParameter::group()) {
 332         myIsParamUpdated = true;
 333       }
 334       // on undo/redo, abort do not update persistent features
 335       FeaturePtr anUpdated = std::dynamic_pointer_cast<ModelAPI_Feature>(*anObjIter);
 336       if (anUpdated.get()) {
 337         if (addModified(anUpdated, FeaturePtr()))
 338           aSomeModified = true;
 339         if (myUpdateBlocked) { // execute this feature anyway to show the current result
 340           /*if (!anUpdated->isStable() && anUpdated->results().size() && (
 341               anUpdated->firstResult()->groupName() == ModelAPI_ResultBody::group() ||
 342               anUpdated->firstResult()->groupName() == ModelAPI_ResultPart::group())) {
 343             if (aFactory->validate(anUpdated)) {
 344               executeFeature(anUpdated);
 345               redisplayWithResults(anUpdated, ModelAPI_StateNothing, false);
 346               static Events_ID EVENT_DISP = aLoop->eventByName(EVENT_OBJECT_TO_REDISPLAY);
 347               aLoop->flush(EVENT_DISP);
 348             }
 349           }*/
 350         }
 351       } else {
 352         // process the updated result as update of features that refers to this result
 353         const std::set<std::shared_ptr<ModelAPI_Attribute> >&
 354           aRefs = (*anObjIter)->data()->refsToMe();
 355         std::set<std::shared_ptr<ModelAPI_Attribute> >::const_iterator aRefIter = aRefs.cbegin();
 356         FeaturePtr aReason;
 357         ResultPtr aReasonResult = std::dynamic_pointer_cast<ModelAPI_Result>(*anObjIter);
 358         if (aReasonResult.get())
 359           aReason = (*anObjIter)->document()->feature(aReasonResult);
 360         for(; aRefIter != aRefs.cend(); aRefIter++) {
 361           if (!(*aRefIter)->owner()->data()->isValid())
 362             continue;
 363           FeaturePtr anUpdated = std::dynamic_pointer_cast<ModelAPI_Feature>((*aRefIter)->owner());
 364           if (anUpdated.get()) {
 365             if (addModified(anUpdated, aReason))
 366               aSomeModified = true;
 367           }
 368         }
 369       }
 370     }
 371     // this event is for solver update, not here, do not react immediately
 372     if (aSomeModified) {
 373         processFeatures();
 374     }
 375   } else if (theMessage->eventID() == kOpFinishEvent || theMessage->eventID() == kOpAbortEvent ||
 376       theMessage->eventID() == kOpStartEvent) {
 377     myIsPreviewBlocked = false;
 378
 379     if (theMessage->eventID() == kOpFinishEvent) {// if update is blocked, skip
 380       myIsFinish = true;
 381       // add features that wait for finish as modified
 382       std::map<std::shared_ptr<ModelAPI_Feature>, std::set<std::shared_ptr<ModelAPI_Feature> > >::
 383         iterator aFeature = myProcessOnFinish.begin();
 384       for(; aFeature != myProcessOnFinish.end(); aFeature++) {
 385         if (aFeature->first->data()->isValid()) {// there may be already removed while wait
 386           if (aFeature->second.empty()) {
 387             addModified(aFeature->first, FeaturePtr());
 388             continue;
 389           }
 390           std::set<std::shared_ptr<ModelAPI_Feature> >::iterator aReasons;
 391           for(aReasons = aFeature->second.begin(); aReasons != aFeature->second.end(); aReasons++){
 392             addModified(aFeature->first, *aReasons);
 393           }
 394         }
 395       }
 396       myIsFinish = false;
 397     }
 398     // processed features must be only on finish, so clear anyway (to avoid re-import on load)
 399     myProcessOnFinish.clear();
 400
 401     // #2156: current must be sketch, left after the macro execution
 402     DocumentPtr anActiveDoc = ModelAPI_Session::get()->activeDocument();
 403     FeaturePtr aCurrent;
 404     if (anActiveDoc.get())
 405       aCurrent = anActiveDoc->currentFeature(false);
 406
 407     if (!(theMessage->eventID() == kOpStartEvent)) {
 408       processFeatures(false);
 409     }
 410
 411     if (anActiveDoc.get() && aCurrent.get() && aCurrent->data()->isValid()) {
 412       if (anActiveDoc->currentFeature(false) != aCurrent &&
 413           ModelAPI_Tools::compositeOwner(anActiveDoc->currentFeature(false)) == aCurrent)
 414         anActiveDoc->setCurrentFeature(aCurrent, false); // #2156 make the current feature back
 415     }
 416
 417     // remove all macros before clearing all created
 418     std::set<FeaturePtr>::iterator anUpdatedIter = myWaitForFinish.begin();
 419     while(anUpdatedIter != myWaitForFinish.end()) {
 420       FeaturePtr aFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(*anUpdatedIter);
 421       if (aFeature.get()) {
 422         // remove macro on finish
 423         if (aFeature->isMacro()) {
 424           aFeature->document()->removeFeature(aFeature);
 425           myWaitForFinish.erase(aFeature);
 426         }
 427         // to avoid the map update problems on "remove"
 428         if (myWaitForFinish.find(aFeature) == myWaitForFinish.end()) {
 429           anUpdatedIter = myWaitForFinish.begin();
 430         } else {
 431           anUpdatedIter++;
 432         }
 433       } else {
 434         anUpdatedIter++;
 435       }
 436     }
 437     // the redisplay signal should be flushed in order
 438     // to erase the feature presentation in the viewer
 439     // if should be done after removeFeature() of document,
 440     // by this reason, upper processFeatures() do not perform this flush
 441     Events_Loop::loop()->flush(kRedisplayEvent);
 442
 443     // in the end of transaction everything is updated, so clear the old objects
 444     //myIsParamUpdated = false; // to avoid problems in sprocket.py parameter update
 445     myWaitForFinish.clear();
 446   } else if (theMessage->eventID() == kReorderEvent) {
 447     std::shared_ptr<ModelAPI_OrderUpdatedMessage> aMsg =
 448       std::dynamic_pointer_cast<ModelAPI_OrderUpdatedMessage>(theMessage);
 449     if (aMsg->reordered().get())
 450       addModified(aMsg->reordered(), aMsg->reordered()); // to update all attributes
 451   }
 452 }
 453
 454 void Model_Update::processFeatures(const bool theFlushRedisplay)
 455 {
 456    // perform update of everything if it is not performed right now or any preview is blocked
 457   if (!myIsProcessed && !myIsPreviewBlocked) {
 458     myIsProcessed = true;
 459     #ifdef DEB_UPDATE
 460       std::cout<<"****** Start processing"<<std::endl;
 461     #endif
 462
 463     while(!myModified.empty()) {
 464       processFeature(myModified.begin()->first);
 465     }
 466     myIsProcessed = false;
 467
 468     // to update the object browser if something is updated/created during executions
 469     static Events_Loop* aLoop = Events_Loop::loop();
 470     static const Events_ID kCreatedEvent= aLoop->eventByName(EVENT_OBJECT_CREATED);
 471     aLoop->flush(kCreatedEvent);
 472     static const Events_ID kUpdatedEvent = aLoop->eventByName(EVENT_OBJECT_UPDATED);
 473     aLoop->flush(kUpdatedEvent);
 474
 475     // flush to update display
 476     if (theFlushRedisplay) {
 477       static Events_ID EVENT_DISP = aLoop->eventByName(EVENT_OBJECT_TO_REDISPLAY);
 478       aLoop->flush(EVENT_DISP);
 479     }
 480     #ifdef DEB_UPDATE
 481       std::cout<<"****** End processing"<<std::endl;
 482     #endif
 483     myProcessed.clear();
 484   }
 485 }
 486
 487 // collects all the features this feature depends on: reasons
 488 static void allReasons(FeaturePtr theFeature, std::set<FeaturePtr>& theReasons) {
 489   std::list<std::pair<std::string, std::list<std::shared_ptr<ModelAPI_Object> > > > aDeps;
 490   theFeature->data()->referencesToObjects(aDeps);
 491   std::list<std::pair<std::string, std::list<std::shared_ptr<ModelAPI_Object> > > >::iterator
 492     anAttrsIter = aDeps.begin();
 493   for(; anAttrsIter != aDeps.end(); anAttrsIter++) {
 494     if (theFeature->attribute(anAttrsIter->first)->isArgument()) {
 495       std::list<std::shared_ptr<ModelAPI_Object> >::iterator aDepIter = anAttrsIter->second.begin();
 496       for(; aDepIter != anAttrsIter->second.end(); aDepIter++) {
 497         FeaturePtr aDepFeat = std::dynamic_pointer_cast<ModelAPI_Feature>(*aDepIter);
 498         if (!aDepFeat.get()) { // so, it depends on the result and process the feature owner of it
 499           ResultPtr aDepRes = std::dynamic_pointer_cast<ModelAPI_Result>(*aDepIter);
 500           if (aDepRes.get()) {
 501             aDepFeat = (*aDepIter)->document()->feature(aDepRes);
 502           }
 503         }
 504         if (aDepFeat.get() && aDepFeat->data()->isValid()) {
 505           theReasons.insert(aDepFeat);
 506         }
 507       }
 508     }
 509   }
 510   if (theFeature->getKind() == "Part") {
 511     // part is not depended on its subs directly, but subs must be iterated anyway
 512     CompositeFeaturePtr aPart = std::dynamic_pointer_cast<ModelAPI_CompositeFeature>(theFeature);
 513     int aNum = aPart->numberOfSubs();
 514     for(int a = 0; a < aNum; a++) {
 515       FeaturePtr aSub = aPart->subFeature(a);
 516       if (aSub.get() && aSub->data()->isValid()) {
 517         theReasons.insert(aSub);
 518       }
 519     }
 520   }
 521 }
 522
 523 bool Model_Update::processFeature(FeaturePtr theFeature)
 524 {
 525   static ModelAPI_ValidatorsFactory* aFactory = ModelAPI_Session::get()->validators();
 526
 527   if (!theFeature->data()->isValid()) { // deleted feature, just remove from all containers
 528     if (myModified.find(theFeature) != myModified.end())
 529       myModified.erase(theFeature);
 530     return false;
 531   }
 532
 533   if (theFeature->isPersistentResult()) {
 534     if (!std::dynamic_pointer_cast<Model_Document>((theFeature)->document())->executeFeatures())
 535       return false;
 536   }
 537
 538   if (myProcessed.find(theFeature) == myProcessed.end()) {
 539     myProcessed[theFeature] = 0;
 540   } else {
 541     int aCount = myProcessed[theFeature];
 542     if (aCount > 100) {
 543       // too many repetition of processing (in VS it may crash on 330 with stack overflow)
 544       Events_InfoMessage("Model_Update",
 545         "Feature '%1' is updated in infinitive loop").arg(theFeature->data()->name()).send();
 546       // to stop iteration
 547       myModified.clear();
 548       return false;
 549     }
 550     myProcessed[theFeature] = aCount + 1;
 551   }
 552
 553   // check this feature is not yet checked or processed
 554   bool aIsModified = myModified.find(theFeature) != myModified.end();
 555   if (!aIsModified && myIsFinish) { // get info about the modification for features without preview
 556     if (theFeature->data()->execState() == ModelAPI_StateMustBeUpdated) {
 557       aIsModified = true;
 558       std::set<std::shared_ptr<ModelAPI_Feature> > aNewSet;
 559       // contains itself, so, we don't know which was the reason and the reason is any
 560       aNewSet.insert(theFeature);
 561       myModified[theFeature] = aNewSet;
 562     }
 563   }
 564
 565 #ifdef DEB_UPDATE
 566     std::cout<<"* Process feature "<<theFeature->name()<<std::endl;
 567 #endif
 568
 569   // update the sketch plane before the sketch sub-elements are recomputed
 570   // (otherwise sketch will update plane, modify subs, after executed, but with old subs edges)
 571     if (aIsModified && theFeature->getKind() == "Sketch") {
 572 #ifdef DEB_UPDATE
 573       std::cout << "****** Update sketch args " << theFeature->name() << std::endl;
 574 #endif
 575       AttributeSelectionPtr anExtSel = theFeature->selection("External");
 576       if (anExtSel.get()) {
 577         ResultPtr aContext = anExtSel->context();
 578         if (aContext.get() && aContext->document().get()) {
 579           FeaturePtr anExtBase = aContext->document()->feature(aContext);
 580           if (anExtBase.get()) {
 581             processFeature(anExtBase);
 582           }
 583           std::shared_ptr<GeomDataAPI_Point> anOrigin =
 584             std::dynamic_pointer_cast<GeomDataAPI_Point>(theFeature->attribute("Origin"));
 585           double anOX = anOrigin->x(), anOY = anOrigin->y(), anOZ = anOrigin->z();
 586           std::shared_ptr<GeomDataAPI_Dir> aDir =
 587             std::dynamic_pointer_cast<GeomDataAPI_Dir>(theFeature->attribute("DirX"));
 588           double aDX = aDir->x(), aDY = aDir->y(), aDZ = aDir->z();
 589           std::shared_ptr<GeomDataAPI_Dir> aNorm =
 590             std::dynamic_pointer_cast<GeomDataAPI_Dir>(theFeature->attribute("Norm"));
 591           double aNX = aNorm->x(), aNY = aNorm->y(), aNZ = aNorm->z();
 592           // update sketch plane
 593           updateArguments(theFeature);
 594           theFeature->attributeChanged("External"); // to recompute origin, direction and normal
 595           // check it is updated, so all must be changed
 596           if (anOrigin->x() != anOX || anOrigin->y() != anOY || anOrigin->z() != anOZ ||
 597               aDir->x() != aDX || aDir->y() != aDY || aDir->z() != aDZ ||
 598               aNorm->x() != aNX || aNorm->y() != aNY || aNorm->z() != aNZ)
 599           {
 600             std::set<FeaturePtr> aWholeR;
 601             allReasons(theFeature, aWholeR);
 602             std::set<FeaturePtr>::iterator aRIter = aWholeR.begin();
 603             for (; aRIter != aWholeR.end(); aRIter++) {
 604               if ((*aRIter)->data()->selection("External").get())
 605                 (*aRIter)->attributeChanged("External");
 606             }
 607           }
 608         }
 609       }
 610     }
 611
 612   if (!aIsModified) { // no modification is needed
 613     return false;
 614   }
 615
 616   // evaluate parameter before the sub-elements update:
 617   // it updates dependencies on evaluation (#1085)
 618   if (theFeature->getKind() == "Parameter") {
 619     theFeature->execute();
 620   }
 621
 622   bool isReferencedInvalid = false;
 623   // check all features this feature depended on (recursive call of updateFeature)
 624   std::set<FeaturePtr>& aReasons = myModified[theFeature];
 625   bool allSubsUsed = aReasons.find(theFeature) != aReasons.end();
 626   if (allSubsUsed) {
 627     // add all subs in aReasons and temporary remove "theFeature" to avoid processing itself
 628     allReasons(theFeature, aReasons);
 629     aReasons.erase(theFeature);
 630   }
 631   // take reasons one by one (they may be added during the feature process
 632   // (circle by the radius of sketch)
 633   std::set<FeaturePtr> aProcessedReasons;
 634   while(!aReasons.empty()) {
 635     FeaturePtr aReason = *(aReasons.begin());
 636 #ifdef DEB_UPDATE
 637     //cout<<theFeature->name()<<" process next reason "<<aReason->name()<<endl;
 638 #endif
 639     if (aReason != theFeature && (aReason)->data()->isValid()) {
 640       if (processFeature(aReason))
 641         aIsModified = true;
 642       // check validity of aReason once again because it may be removed by dependent feature
 643       // (e.g. by SketchPlugin_IntersectionPoint)
 644       if (!aReason->data()->isValid() ||
 645           aReason->data()->execState() == ModelAPI_StateInvalidArgument)
 646         isReferencedInvalid = true;
 647     }
 648     // searching for the next not used reason
 649     aProcessedReasons.insert(aReason);
 650     // check theFeature is still in the list of modified, because it may be removed sometimes
 651     // while updating SketchPlugin_Ellipse
 652     if (myModified.find(theFeature) != myModified.end())
 653       aReasons.erase(aReason);
 654     else
 655       break;
 656   }
 657   // restore the modified reasons: they will be used in the update of arguments
 658   if (allSubsUsed) { // restore theFeature in this set
 659     aProcessedReasons.insert(theFeature);
 660   }
 661   myModified[theFeature] = aProcessedReasons;
 662
 663   // do not execute the composite that contains the current
 664   bool isPostponedMain = false;
 665   CompositeFeaturePtr aCompos = std::dynamic_pointer_cast<ModelAPI_CompositeFeature>(theFeature);
 666   if (theFeature->getKind() == "ExtrusionSketch" && aCompos.get()) {
 667     CompositeFeaturePtr aCurrentOwner =
 668       ModelAPI_Tools::compositeOwner(theFeature->document()->currentFeature(false));
 669     isPostponedMain = aCurrentOwner.get() && aCompos->isSub(aCurrentOwner);
 670   } else if (theFeature->getKind() == "Sketch" &&
 671     std::dynamic_pointer_cast<Model_Document>((theFeature)->document())->executeFeatures()) {
 672     // send event that sketch is prepared to be recomputed
 673     static Events_ID anID = Events_Loop::eventByName("SketchPrepared");
 674     std::shared_ptr<Events_Message> aMsg(new Events_Message(anID, this));
 675     Events_Loop* aLoop = Events_Loop::loop();
 676     // in case it is finish operation, flush for the sketch other events (#2450)
 677     aLoop->flush(aLoop->eventByName(EVENT_OBJECT_UPDATED));
 678     aLoop->send(aMsg);
 679     // check that sub-elements of sketch are updated => sketch must be re-processed
 680     std::set<FeaturePtr> aWholeR;
 681     allReasons(theFeature, aWholeR);
 682     std::set<FeaturePtr>::iterator aRIter = aWholeR.begin();
 683     for(; aRIter != aWholeR.end(); aRIter++) {
 684       if (myModified.find(*aRIter) != myModified.end()) {
 685         processFeature(theFeature);
 686         return true;
 687       }
 688     }
 689   }
 690
 691 #ifdef DEB_UPDATE
 692   std::cout<<"Update args "<<theFeature->name()<<std::endl;
 693 #endif
 694   // TestImport.py : after arguments are updated, theFeature may be removed
 695   if (!theFeature->data()->isValid())
 696     return false;
 697   // Update selection and parameters attributes first, before sub-features analysis (sketch plane).
 698   updateArguments(theFeature);
 699
 700   // add this feature to the processed right now to be able remove it from this list on
 701   // update signal during this feature execution
 702   myModified.erase(theFeature);
 703   if (myNotPersistentRefs.find(theFeature) != myNotPersistentRefs.end())
 704     myNotPersistentRefs.erase(theFeature);
 705   if (theFeature->data()->execState() == ModelAPI_StateMustBeUpdated)
 706     theFeature->data()->execState(ModelAPI_StateDone);
 707
 708   // this checking must be after the composite feature sub-elements processing:
 709   // composite feature status may depend on it's sub-elements
 710   if ((theFeature->data()->execState() == ModelAPI_StateInvalidArgument || isReferencedInvalid) &&
 711     theFeature->getKind() != "Part") {
 712       // don't disable Part because it will make disabled all the features
 713       // (performance and problems with the current feature)
 714   #ifdef DEB_UPDATE
 715     std::cout<<"Invalid args "<<theFeature->name()<<std::endl;
 716   #endif
 717     theFeature->eraseResults(false);
 718     redisplayWithResults(theFeature, ModelAPI_StateInvalidArgument); // result also must be updated
 719     return true; // so, feature is modified (results are erased)
 720   }
 721
 722   // execute feature if it must be updated
 723   ModelAPI_ExecState aState = theFeature->data()->execState();
 724   if (aFactory->validate(theFeature)) {
 725     if (!isPostponedMain) {
 726       bool aDoExecute = true;
 727       if (myUpdateBlocked) {
 728         if (!theFeature->isStable()) {
 729           aDoExecute = true;
 730         } else if (theFeature->results().size()) { // execute only not persistent results features
 731           aDoExecute = !theFeature->isPersistentResult();
 732         } else {
 733           aDoExecute = aState != ModelAPI_StateInvalidArgument;
 734         }
 735       }
 736       if (aDoExecute) {
 737         executeFeature(theFeature);
 738       } else {
 739         // store information that this feature must be executed later
 740         theFeature->data()->execState(ModelAPI_StateMustBeUpdated);
 741       }
 742     }
 743   } else {
 744     #ifdef DEB_UPDATE
 745       std::cout<<"Feature is not valid, erase results "<<theFeature->name()<<std::endl;
 746     #endif
 747     theFeature->eraseResults(false);
 748     redisplayWithResults(theFeature, ModelAPI_StateInvalidArgument); // result also must be updated
 749   }
 750   return true;
 751 }
 752
 753 void Model_Update::redisplayWithResults(
 754   FeaturePtr theFeature, const ModelAPI_ExecState theState, bool theUpdateState)
 755 {
 756   // make updated and redisplay all results
 757   static Events_ID EVENT_DISP = Events_Loop::loop()->eventByName(EVENT_OBJECT_TO_REDISPLAY);
 758
 759   std::list<ResultPtr> allResults;
 760   ModelAPI_Tools::allResults(theFeature, allResults);
 761   std::list<ResultPtr>::iterator aRIter = allResults.begin();
 762   for (; aRIter != allResults.cend(); aRIter++) {
 763     std::shared_ptr<ModelAPI_Result> aRes = *aRIter;
 764     if (!aRes->isDisabled()) {
 765       // update state only for enabled results
 766       // (Placement Result Part may make the original Part Result as invalid)
 767       if (theUpdateState)
 768         aRes->data()->execState(theState);
 769     }
 770     if (theFeature->data()->updateID() > aRes->data()->updateID()) {
 771       aRes->data()->setUpdateID(theFeature->data()->updateID());
 772     }
 773     ModelAPI_EventCreator::get()->sendUpdated(aRes, EVENT_DISP);
 774   }
 775   // to redisplay "presentable" feature (for ex. distance constraint)
 776   ModelAPI_EventCreator::get()->sendUpdated(theFeature, EVENT_DISP);
 777   if (theUpdateState)
 778     theFeature->data()->execState(theState);
 779 }
 780
 781 /// Updates the state by the referenced object: if something bad with it, set state for this one
 782 ModelAPI_ExecState stateByReference(ObjectPtr theTarget, const ModelAPI_ExecState theCurrent)
 783 {
 784   if (theTarget) {
 785     ModelAPI_ExecState aRefState = theTarget->data()->execState();
 786     if (aRefState == ModelAPI_StateMustBeUpdated) {
 787       if (theCurrent == ModelAPI_StateDone)
 788         return ModelAPI_StateMustBeUpdated;
 789     } else if (aRefState != ModelAPI_StateDone) {
 790       return ModelAPI_StateInvalidArgument;
 791     }
 792   }
 793   return theCurrent;
 794 }
 795
 796 void Model_Update::updateArguments(FeaturePtr theFeature) {
 797   // perform this method also for disabled features: to make "not done" state for
 798   // features referenced to the active and modified features
 799   static ModelAPI_ValidatorsFactory* aFactory = ModelAPI_Session::get()->validators();
 800
 801   ModelAPI_ExecState aState = theFeature->data()->execState();
 802   if (aState == ModelAPI_StateExecFailed) { // try again failed feature: issue 577
 803     aState = ModelAPI_StateMustBeUpdated;
 804   }
 805   if (aState == ModelAPI_StateInvalidArgument) // a chance to be corrected
 806     aState = ModelAPI_StateMustBeUpdated;
 807   // check the parameters state
 808   // Integer
 809   {
 810     std::list<AttributePtr> anAttrinbutes =
 811       theFeature->data()->attributes(ModelAPI_AttributeInteger::typeId());
 812     std::list<AttributePtr>::iterator anIter = anAttrinbutes.begin();
 813     for(; anIter != anAttrinbutes.end(); anIter++) {
 814       AttributeIntegerPtr anAttribute =
 815         std::dynamic_pointer_cast<ModelAPI_AttributeInteger>(*anIter);
 816       if (anAttribute.get() && !anAttribute->text().empty()) {
 817         if (myIsParamUpdated) {
 818           ModelAPI_AttributeEvalMessage::send(anAttribute, this);
 819         }
 820         if (anAttribute->expressionInvalid()) {
 821           aState = ModelAPI_StateInvalidArgument;
 822         }
 823       }
 824     }
 825   }
 826   // Double
 827   {
 828     std::list<AttributePtr> aDoubles =
 829       theFeature->data()->attributes(ModelAPI_AttributeDouble::typeId());
 830     std::list<AttributePtr>::iterator aDoubleIter = aDoubles.begin();
 831     for(; aDoubleIter != aDoubles.end(); aDoubleIter++) {
 832       AttributeDoublePtr aDouble =
 833         std::dynamic_pointer_cast<ModelAPI_AttributeDouble>(*aDoubleIter);
 834       if (aDouble.get() && !aDouble->text().empty()) {
 835         if (myIsParamUpdated) {
 836           ModelAPI_AttributeEvalMessage::send(aDouble, this);
 837         }
 838         if (aDouble->expressionInvalid()) {
 839           aState = ModelAPI_StateInvalidArgument;
 840         }
 841       }
 842     }
 843   }
 844   // Point
 845   {
 846     std::list<AttributePtr> anAttributes =
 847       theFeature->data()->attributes(GeomDataAPI_Point::typeId());
 848     std::list<AttributePtr>::iterator anIter = anAttributes.begin();
 849     for(; anIter != anAttributes.end(); anIter++) {
 850       AttributePointPtr aPointAttribute =
 851         std::dynamic_pointer_cast<GeomDataAPI_Point>(*anIter);
 852       if (aPointAttribute.get() && (!aPointAttribute->textX().empty() ||
 853           !aPointAttribute->textY().empty() || !aPointAttribute->textZ().empty())) {
 854         if (myIsParamUpdated) {
 855           ModelAPI_AttributeEvalMessage::send(aPointAttribute, this);
 856         }
 857         if ((!aPointAttribute->textX().empty() && aPointAttribute->expressionInvalid(0)) ||
 858           (!aPointAttribute->textY().empty() && aPointAttribute->expressionInvalid(1)) ||
 859           (!aPointAttribute->textZ().empty() && aPointAttribute->expressionInvalid(2)))
 860           aState = ModelAPI_StateInvalidArgument;
 861       }
 862     }
 863   }
 864   // Point2D
 865   {
 866     std::list<AttributePtr> anAttributes =
 867       theFeature->data()->attributes(GeomDataAPI_Point2D::typeId());
 868     std::list<AttributePtr>::iterator anIter = anAttributes.begin();
 869     for(; anIter != anAttributes.end(); anIter++) {
 870       AttributePoint2DPtr aPoint2DAttribute =
 871         std::dynamic_pointer_cast<GeomDataAPI_Point2D>(*anIter);
 872       if (aPoint2DAttribute.get()) {
 873         if (myIsParamUpdated && (!aPoint2DAttribute->textX().empty() ||
 874             !aPoint2DAttribute->textY().empty())) {
 875           ModelAPI_AttributeEvalMessage::send(aPoint2DAttribute, this);
 876         }
 877         if ((!aPoint2DAttribute->textX().empty() && aPoint2DAttribute->expressionInvalid(0)) ||
 878           (!aPoint2DAttribute->textY().empty() && aPoint2DAttribute->expressionInvalid(1)))
 879           aState = ModelAPI_StateInvalidArgument;
 880       }
 881     }
 882   }
 883   // update the selection attributes if any
 884   std::list<AttributePtr> aRefs =
 885     theFeature->data()->attributes(ModelAPI_AttributeSelection::typeId());
 886   std::list<AttributePtr>::iterator aRefsIter = aRefs.begin();
 887   for (; aRefsIter != aRefs.end(); aRefsIter++) {
 888     std::shared_ptr<ModelAPI_AttributeSelection> aSel =
 889       std::dynamic_pointer_cast<ModelAPI_AttributeSelection>(*aRefsIter);
 890     ObjectPtr aContext = aSel->context();
 891     // update argument only if the referenced object is ready to use
 892     if (aContext.get() && !aContext->isDisabled()) {
 893       if (isReason(theFeature, aContext)) {
 894         if (!aSel->update()) { // this must be done on execution since it may be long operation
 895           bool isObligatory = !aFactory->isNotObligatory(
 896             theFeature->getKind(), theFeature->data()->id(aSel)) &&
 897             aFactory->isCase(theFeature, theFeature->data()->id(aSel));
 898           if (isObligatory)
 899             aState = ModelAPI_StateInvalidArgument;
 900         }
 901       }
 902     } else if (aContext.get()) {
 903       // here it may be not obligatory, but if the reference is wrong, it should not be correct
 904       bool isObligatory = aFactory->isCase(theFeature, theFeature->data()->id(aSel));
 905       if (isObligatory)
 906         aState = ModelAPI_StateInvalidArgument;
 907     }
 908   }
 909   // update the selection list attributes if any
 910   aRefs = theFeature->data()->attributes(ModelAPI_AttributeSelectionList::typeId());
 911   for (aRefsIter = aRefs.begin(); aRefsIter != aRefs.end(); aRefsIter++) {
 912     std::shared_ptr<ModelAPI_AttributeSelectionList> aSel =
 913       std::dynamic_pointer_cast<ModelAPI_AttributeSelectionList>(*aRefsIter);
 914     for(int a = aSel->size() - 1; a >= 0; a--) {
 915       std::shared_ptr<ModelAPI_AttributeSelection> aSelAttr =
 916         std::dynamic_pointer_cast<ModelAPI_AttributeSelection>(aSel->value(a));
 917       if (aSelAttr) {
 918         ObjectPtr aContext = aSelAttr->context();
 919         // update argument only if the referenced object is ready to use
 920         if (aContext.get() && !aContext->isDisabled()) {
 921           if (isReason(theFeature, aContext)) {
 922             if (!aSelAttr->update()) {
 923               bool isObligatory = !aFactory->isNotObligatory(
 924                 theFeature->getKind(), theFeature->data()->id(aSel)) &&
 925                 aFactory->isCase(theFeature, theFeature->data()->id(aSel));
 926               if (isObligatory)
 927                 aState = ModelAPI_StateInvalidArgument;
 928             }
 929           }
 930         } else if (aContext.get()) {
 931           // here it may be not obligatory, but if the reference is wrong, it should not be correct
 932           bool isObligatory = aFactory->isCase(theFeature, theFeature->data()->id(aSel));
 933           if (isObligatory)
 934             aState = ModelAPI_StateInvalidArgument;
 935         }
 936       }
 937     }
 938   }
 939
 940   if (aState != ModelAPI_StateDone)
 941     theFeature->data()->execState(aState);
 942 }
 943
 944 bool Model_Update::isReason(std::shared_ptr<ModelAPI_Feature>& theFeature,
 945      std::shared_ptr<ModelAPI_Object> theReason)
 946 {
 947   std::map<std::shared_ptr<ModelAPI_Feature>, std::set<std::shared_ptr<ModelAPI_Feature> > >
 948     ::iterator aReasonsIt = myModified.find(theFeature);
 949   if (aReasonsIt != myModified.end()) {
 950     if (aReasonsIt->second.find(theFeature) != aReasonsIt->second.end())
 951       return true; // any is reason if it contains itself
 952     FeaturePtr aReasFeat = std::dynamic_pointer_cast<ModelAPI_Feature>(theReason);
 953     if (!aReasFeat.get()) { // try to get feature of this result
 954       ResultPtr aReasRes = std::dynamic_pointer_cast<ModelAPI_Result>(theReason);
 955       if (aReasRes.get())
 956         aReasFeat = theReason->document()->feature(aReasRes);
 957     }
 958     if (aReasonsIt->second.find(aReasFeat) != aReasonsIt->second.end())
 959       return true;
 960   }
 961   // another try: postponed modification by not-persistences
 962   std::map<std::shared_ptr<ModelAPI_Feature>, std::set<std::shared_ptr<ModelAPI_Feature> > >
 963     ::iterator aNotPersist = myNotPersistentRefs.find(theFeature);
 964   if (aNotPersist != myNotPersistentRefs.end()) {
 965     FeaturePtr aReasFeat = std::dynamic_pointer_cast<ModelAPI_Feature>(theReason);
 966     if (!aReasFeat.get()) { // try to get feature of this result
 967       ResultPtr aReasRes = std::dynamic_pointer_cast<ModelAPI_Result>(theReason);
 968       if (aReasRes.get())
 969         aReasFeat = theReason->document()->feature(aReasRes);
 970     }
 971     if (aNotPersist->second.find(aReasFeat) != aNotPersist->second.end())
 972       return true;
 973   }
 974
 975   // this case only for not-previewed items update state, nothing is changed in args for it
 976   return false;
 977 }
 978
 979 void Model_Update::executeFeature(FeaturePtr theFeature)
 980 {
 981 #ifdef DEB_UPDATE
 982   std::cout<<"Execute Feature "<<theFeature->name()<<std::endl;
 983 #endif
 984   // execute in try-catch to avoid internal problems of the feature
 985   ModelAPI_ExecState aState = ModelAPI_StateDone;
 986   theFeature->data()->execState(ModelAPI_StateDone);
 987   try {
 988     theFeature->execute();
 989     if (theFeature->data()->execState() != ModelAPI_StateDone) {
 990       aState = ModelAPI_StateExecFailed;
 991     } else {
 992       aState = ModelAPI_StateDone;
 993     }
 994   } catch(...) {
 995     aState = ModelAPI_StateExecFailed;
 996     Events_InfoMessage("Model_Update",
 997       "Feature %1 has failed during the execution").arg(theFeature->getKind()).send();
 998   }
 999   // The macro feature has to be deleted in any case even its execution is failed
1000   myWaitForFinish.insert(theFeature);
1001   if (aState != ModelAPI_StateDone) {
1002     theFeature->eraseResults(false);
1003   }
1004   theFeature->data()->setUpdateID(ModelAPI_Session::get()->transactionID());
1005   redisplayWithResults(theFeature, aState);
1006 }
1007
1008 // it is called on GUI edit of feature start
1009 // LCOV_EXCL_START
1010 void Model_Update::updateStability(void* theSender)
1011 {
1012   static ModelAPI_ValidatorsFactory* aFactory = ModelAPI_Session::get()->validators();
1013   if (theSender) {
1014     bool added = false; // object may be was crated
1015     ModelAPI_Object* aSender = static_cast<ModelAPI_Object*>(theSender);
1016     if (aSender && aSender->document()) {
1017       FeaturePtr aFeatureSender =
1018         std::dynamic_pointer_cast<ModelAPI_Feature>(aSender->data()->owner());
1019       if (aFeatureSender.get()) {
1020         Model_Objects* aDocObjects =
1021           std::dynamic_pointer_cast<Model_Document>(aSender->document())->objects();
1022         if (aDocObjects) {
1023           //aDocObjects->synchronizeBackRefs();
1024           // remove or add all concealment refs from this feature
1025           std::list<std::pair<std::string, std::list<ObjectPtr> > > aRefs;
1026           aSender->data()->referencesToObjects(aRefs);
1027           std::list<std::pair<std::string, std::list<ObjectPtr> > >::iterator
1028             aRefIt = aRefs.begin();
1029           for(; aRefIt != aRefs.end(); aRefIt++) {
1030             if (!aFactory->isConcealed(aFeatureSender->getKind(), aRefIt->first))
1031               // take into account only concealed references
1032               // (do not remove the sketch constraint and the edge on constraint edit)
1033               continue;
1034             std::list<ObjectPtr>& aRefFeaturesList = aRefIt->second;
1035             std::list<ObjectPtr>::iterator aReferenced = aRefFeaturesList.begin();
1036             for(; aReferenced != aRefFeaturesList.end(); aReferenced++) {
1037                // stability is only on results: feature to feature reference mean nested
1038               // features, that will remove nesting references
1039               if (aReferenced->get() && (*aReferenced)->data()->isValid() &&
1040                 (*aReferenced)->groupName() != ModelAPI_Feature::group()) {
1041                 std::shared_ptr<Model_Data> aData =
1042                   std::dynamic_pointer_cast<Model_Data>((*aReferenced)->data());
1043                 if (aFeatureSender->isStable()) {
1044                   aData->addBackReference(aFeatureSender, aRefIt->first);
1045                 } else {
1046                   aData->removeBackReference(aFeatureSender, aRefIt->first);
1047                   added = true; // remove of concealment may be caused creation of some result
1048                 }
1049               }
1050             }
1051           }
1052         }
1053       }
1054     }
1055     if (added) {
1056       static Events_Loop* aLoop = Events_Loop::loop();
1057       static Events_ID kEventCreated = aLoop->eventByName(EVENT_OBJECT_CREATED);
1058       aLoop->flush(kEventCreated);
1059     }
1060   }
1061 }
1062 // LCOV_EXCL_STOP
1063
1064 void Model_Update::updateSelection(const std::set<std::shared_ptr<ModelAPI_Object> >& theObjects)
1065 {
1066   std::set<std::shared_ptr<ModelAPI_Object> >::iterator anObj = theObjects.begin();
1067   for(; anObj != theObjects.end(); anObj++) {
1068     std::list<AttributePtr> aRefs =
1069       (*anObj)->data()->attributes(ModelAPI_AttributeSelection::typeId());
1070     std::list<AttributePtr>::iterator aRefsIter = aRefs.begin();
1071     for (; aRefsIter != aRefs.end(); aRefsIter++) {
1072       std::shared_ptr<Model_AttributeSelection> aSel =
1073         std::dynamic_pointer_cast<Model_AttributeSelection>(*aRefsIter);
1074       bool aRemove = false;
1075       aSel->updateInHistory(aRemove);
1076     }
1077     // update the selection list attributes if any
1078     aRefs = (*anObj)->data()->attributes(ModelAPI_AttributeSelectionList::typeId());
1079     for (aRefsIter = aRefs.begin(); aRefsIter != aRefs.end(); aRefsIter++) {
1080       std::set<int> aRemoveSet;
1081       std::shared_ptr<ModelAPI_AttributeSelectionList> aSel =
1082         std::dynamic_pointer_cast<ModelAPI_AttributeSelectionList>(*aRefsIter);
1083       for(int a = aSel->size() - 1; a >= 0; a--) {
1084         std::shared_ptr<Model_AttributeSelection> aSelAttr =
1085           std::dynamic_pointer_cast<Model_AttributeSelection>(aSel->value(a));
1086         if (aSelAttr.get()) {
1087           bool theRemove = false;
1088           aSelAttr->updateInHistory(theRemove);
1089           if (theRemove) {
1090             aRemoveSet.insert(a);
1091           }
1092         }
1093       }
1094       aSel->remove(aRemoveSet);
1095     }
1096   }
1097 }