src/Model/Model_Update.cpp

   1 // Copyright (C) 2014-2020  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 <ModelAPI_Feature.h>
  25 #include <ModelAPI_Data.h>
  26 #include <ModelAPI_Document.h>
  27 #include <ModelAPI_Events.h>
  28 #include <ModelAPI_AttributeReference.h>
  29 #include <ModelAPI_AttributeRefList.h>
  30 #include <ModelAPI_AttributeRefAttr.h>
  31 #include <ModelAPI_AttributeSelection.h>
  32 #include <ModelAPI_AttributeSelectionList.h>
  33 #include <ModelAPI_Result.h>
  34 #include <ModelAPI_ResultPart.h>
  35 #include <ModelAPI_Validator.h>
  36 #include <ModelAPI_CompositeFeature.h>
  37 #include <ModelAPI_Session.h>
  38 #include <ModelAPI_Tools.h>
  39 #include <ModelAPI_ResultBody.h>
  40 #include <ModelAPI_ResultPart.h>
  41 #include <ModelAPI_ResultConstruction.h>
  42 #include <GeomAPI_Shape.h>
  43 #include <GeomDataAPI_Point.h>
  44 #include <GeomDataAPI_Dir.h>
  45 #include <GeomDataAPI_Point2D.h>
  46 #include <Events_Loop.h>
  47 #include <Events_LongOp.h>
  48 #include <Events_InfoMessage.h>
  49 #include <Config_PropManager.h>
  50
  51 Model_Update MY_UPDATER_INSTANCE;  /// the only one instance initialized on load of the library
  52 //#define DEB_UPDATE
  53
  54 Model_Update::Model_Update()
  55 {
  56   Events_Loop* aLoop = Events_Loop::loop();
  57   static const Events_ID kChangedEvent = aLoop->eventByName("PreferenceChanged");
  58   aLoop->registerListener(this, kChangedEvent);
  59   static const Events_ID kCreatedEvent = Events_Loop::loop()->eventByName(EVENT_OBJECT_CREATED);
  60   aLoop->registerListener(this, kCreatedEvent);
  61   static const Events_ID kUpdatedEvent = Events_Loop::loop()->eventByName(EVENT_OBJECT_UPDATED);
  62   aLoop->registerListener(this, kUpdatedEvent);
  63   static const Events_ID kOpFinishEvent = aLoop->eventByName("FinishOperation");
  64   aLoop->registerListener(this, kOpFinishEvent);
  65   static const Events_ID kOpAbortEvent = aLoop->eventByName("AbortOperation");
  66   aLoop->registerListener(this, kOpAbortEvent);
  67   static const Events_ID kOpStartEvent = aLoop->eventByName("StartOperation");
  68   aLoop->registerListener(this, kOpStartEvent);
  69   static const Events_ID kStabilityEvent = aLoop->eventByName(EVENT_STABILITY_CHANGED);
  70   aLoop->registerListener(this, kStabilityEvent);
  71   static const Events_ID kPreviewBlockedEvent = aLoop->eventByName(EVENT_PREVIEW_BLOCKED);
  72   aLoop->registerListener(this, kPreviewBlockedEvent);
  73   static const Events_ID kPreviewRequestedEvent = aLoop->eventByName(EVENT_PREVIEW_REQUESTED);
  74   aLoop->registerListener(this, kPreviewRequestedEvent);
  75   static const Events_ID kReorderEvent = aLoop->eventByName(EVENT_ORDER_UPDATED);
  76   aLoop->registerListener(this, kReorderEvent);
  77   static const Events_ID kUpdatedSel = aLoop->eventByName(EVENT_UPDATE_SELECTION);
  78   aLoop->registerListener(this, kUpdatedSel);
  79   static const Events_ID kAutoRecomp = aLoop->eventByName(EVENT_AUTOMATIC_RECOMPUTATION_ENABLE);
  80   aLoop->registerListener(this, kAutoRecomp);
  81
  82   //  Config_PropManager::findProp("Model update", "automatic_rebuild")->value() == "true";
  83   myIsParamUpdated = false;
  84   myIsFinish = false;
  85   myIsProcessed = false;
  86   myIsPreviewBlocked = false;
  87   myUpdateBlocked = false;
  88 }
  89
  90 bool Model_Update::addModified(FeaturePtr theFeature, FeaturePtr theReason) {
  91
  92   if (!theFeature->data()->isValid())
  93     return false; // delete an extrusion created on the sketch
  94
  95
  96   bool isNotExecuted = theFeature->isPersistentResult() &&
  97     !std::dynamic_pointer_cast<Model_Document>((theFeature)->document())->executeFeatures();
  98   if (isNotExecuted) {
  99     redisplayWithResults(theFeature, ModelAPI_StateNothing, false); // redisplay even not executed
 100     if (!theReason.get()) // no reason => no construction reason
 101       return false;
 102     if (myNotPersistentRefs.find(theFeature) == myNotPersistentRefs.end()) {
 103       myNotPersistentRefs[theFeature].insert(theReason);
 104     } else {
 105       std::set<std::shared_ptr<ModelAPI_Feature> > aNewSet;
 106       aNewSet.insert(theReason);
 107       myNotPersistentRefs[theFeature] = aNewSet;
 108     }
 109     return false;
 110   }
 111
 112   // update arguments for "apply button" state change
 113   if ((!theFeature->isPreviewNeeded() && !myIsFinish) || myIsPreviewBlocked) {
 114     if (theReason.get())
 115       myProcessOnFinish[theFeature].insert(theReason);
 116     else if (myProcessOnFinish.find(theFeature) == myProcessOnFinish.end())
 117       myProcessOnFinish[theFeature] = std::set<std::shared_ptr<ModelAPI_Feature> >();
 118 #ifdef DEB_UPDATE
 119       std::cout<<"*** Add process on finish "<<theFeature->name()<<std::endl;
 120 #endif
 121     // keeps the currently updated features to avoid infinitive cycling here: where feature on
 122     // "updateArguments" sends "updated" (in selection attribute) and goes here again
 123     static std::set<FeaturePtr> aCurrentlyUpdated;
 124     if (aCurrentlyUpdated.find(theFeature) == aCurrentlyUpdated.end()) {
 125       aCurrentlyUpdated.insert(theFeature);
 126       updateArguments(theFeature);
 127       aCurrentlyUpdated.erase(theFeature);
 128     }
 129     // make it without conditions otherwise the apply button may have a bad state
 130     theFeature->data()->execState(ModelAPI_StateDone);
 131     static ModelAPI_ValidatorsFactory* aFactory = ModelAPI_Session::get()->validators();
 132      // need to be validated to update the "Apply" state if not previewed
 133     aFactory->validate(theFeature);
 134
 135     // to redisplay split's arguments presentation, even result is not computed
 136     if (!theFeature->isPreviewNeeded()) {
 137       static Events_Loop* aLoop = Events_Loop::loop();
 138       static const Events_ID kRedisplayEvent = aLoop->eventByName(EVENT_OBJECT_TO_REDISPLAY);
 139       ModelAPI_EventCreator::get()->sendUpdated(theFeature, kRedisplayEvent);
 140       aLoop->flush(kRedisplayEvent);
 141     }
 142
 143     if (!myIsPreviewBlocked)
 144       return true;
 145   }
 146   if (myModified.find(theFeature) != myModified.end()) {
 147     if (theReason.get()) {
 148 #ifdef DEB_UPDATE
 149       //std::cout<<"*** Add already modified "
 150       //   <<theFeature->name()<<" reason "<<theReason->name()<<std::endl;
 151 #endif
 152       myModified[theFeature].insert(theReason);
 153     }
 154     return true;
 155   }
 156   // do not add the disabled, but possibly the sub-elements are not disabled
 157   bool aIsDisabled = theFeature->isDisabled();
 158   if (!aIsDisabled) {
 159     std::set<std::shared_ptr<ModelAPI_Feature> > aNewSet;
 160     if (theFeature->data()->execState() == ModelAPI_StateMustBeUpdated ||
 161         theFeature->data()->execState() == ModelAPI_StateInvalidArgument || // issue 1519
 162         theFeature->data()->execState() == ModelAPI_StateExecFailed) {
 163       // do not forget that in this case all were the reasons
 164       aNewSet.insert(theFeature);
 165     } else {
 166       if (theReason.get())
 167         aNewSet.insert(theReason);
 168     }
 169     myModified[theFeature] = aNewSet;
 170 #ifdef DEB_UPDATE
 171     if (theReason.get()) {
 172       //std::cout<<"*** Add modified "<<theFeature->name()
 173       //  <<" reason "<<theReason->name()<<std::endl;
 174     } else {
 175       //std::cout<<"*** Add modified "<<theFeature->name()<<std::endl;
 176     }
 177 #endif
 178   } else { // will be updated during the finish of the operation, or when it becomes enabled
 179     if (theFeature->data()->execState() == ModelAPI_StateDone ||
 180         theFeature->data()->execState() == ModelAPI_StateExecFailed) // fix issue 1819
 181       theFeature->data()->execState(ModelAPI_StateMustBeUpdated);
 182     else
 183       return true; // do not need iteration deeply if it is already marked as modified or so
 184 #ifdef DEB_UPDATE
 185     //std::cout<<"*** Set modified state "<<theFeature->name()<<std::endl;
 186 #endif
 187   }
 188   // clear processed and fill modified recursively
 189   const std::set<std::shared_ptr<ModelAPI_Attribute> >& aRefs = theFeature->data()->refsToMe();
 190   std::set<std::shared_ptr<ModelAPI_Attribute> >::const_iterator aRefIter = aRefs.cbegin();
 191   for(; aRefIter != aRefs.cend(); aRefIter++) {
 192     if ((*aRefIter)->isArgument()) {
 193       FeaturePtr aReferenced = std::dynamic_pointer_cast<ModelAPI_Feature>((*aRefIter)->owner());
 194       if (aReferenced.get()) {
 195         addModified(aReferenced, theFeature);
 196       }
 197     }
 198   }
 199   // process also results
 200   std::list<ResultPtr> allResults; // list of this feature and results
 201   ModelAPI_Tools::allResults(theFeature, allResults);
 202   std::list<ResultPtr>::iterator aRes = allResults.begin();
 203   for(; aRes != allResults.end(); aRes++) {
 204     const std::set<std::shared_ptr<ModelAPI_Attribute> >& aResRefs = (*aRes)->data()->refsToMe();
 205     std::set<std::shared_ptr<ModelAPI_Attribute> >::const_iterator aRIter = aResRefs.cbegin();
 206     for(; aRIter != aResRefs.cend(); aRIter++) {
 207       if ((*aRIter)->isArgument()) {
 208         FeaturePtr aReferenced = std::dynamic_pointer_cast<ModelAPI_Feature>((*aRIter)->owner());
 209         if (aReferenced.get()) {
 210           addModified(aReferenced, theFeature);
 211         }
 212       }
 213     }
 214   }
 215
 216   // also add part feature that contains this feature to the modified
 217   if (theFeature->document()->kind() != "PartSet") {
 218     FeaturePtr aPart = ModelAPI_Tools::findPartFeature(
 219       ModelAPI_Session::get()->moduleDocument(), theFeature->document());
 220     if (aPart.get())
 221       addModified(aPart, theFeature);
 222   }
 223   return true;
 224 }
 225
 226 void Model_Update::processEvent(const std::shared_ptr<Events_Message>& theMessage)
 227 {
 228   static Events_Loop* aLoop = Events_Loop::loop();
 229   //static ModelAPI_ValidatorsFactory* aFactory = ModelAPI_Session::get()->validators();
 230   static const Events_ID kCreatedEvent = aLoop->eventByName(EVENT_OBJECT_CREATED);
 231   static const Events_ID kUpdatedEvent = aLoop->eventByName(EVENT_OBJECT_UPDATED);
 232   static const Events_ID kOpFinishEvent = aLoop->eventByName("FinishOperation");
 233   static const Events_ID kOpAbortEvent = aLoop->eventByName("AbortOperation");
 234   static const Events_ID kOpStartEvent = aLoop->eventByName("StartOperation");
 235   static const Events_ID kStabilityEvent = aLoop->eventByName(EVENT_STABILITY_CHANGED);
 236   static const Events_ID kPreviewBlockedEvent = aLoop->eventByName(EVENT_PREVIEW_BLOCKED);
 237   static const Events_ID kPreviewRequestedEvent = aLoop->eventByName(EVENT_PREVIEW_REQUESTED);
 238   static const Events_ID kReorderEvent = aLoop->eventByName(EVENT_ORDER_UPDATED);
 239   static const Events_ID kRedisplayEvent = aLoop->eventByName(EVENT_OBJECT_TO_REDISPLAY);
 240   static const Events_ID kUpdatedSel = aLoop->eventByName(EVENT_UPDATE_SELECTION);
 241
 242 #ifdef DEB_UPDATE
 243   std::cout<<"****** Event "<<theMessage->eventID().eventText()<<std::endl;
 244 #endif
 245   // check the automatic update flag on any event
 246   bool aNewAutomaticState = ModelAPI_Session::get()->isAutoUpdateBlocked();
 247   if (myUpdateBlocked != aNewAutomaticState) {
 248     myUpdateBlocked = aNewAutomaticState;
 249     if (!myUpdateBlocked) { // process all modified features, even if preview is blocked
 250       bool aPreviewBlockedState = myIsPreviewBlocked; // to update the selected arguments
 251       myIsPreviewBlocked = false;
 252       // iterate everything and add features in state "MustBeUpdated" into modified
 253       std::list<std::shared_ptr<ModelAPI_Document> > allDocs =
 254         ModelAPI_Session::get()->allOpenedDocuments();
 255       std::list<std::shared_ptr<ModelAPI_Document> >::iterator aDoc = allDocs.begin();
 256       for(; aDoc != allDocs.end(); aDoc++) {
 257         std::list<std::shared_ptr<ModelAPI_Feature> > allFeats = (*aDoc)->allFeatures();
 258         std::list<std::shared_ptr<ModelAPI_Feature> >::iterator aFeat = allFeats.begin();
 259         for(; aFeat != allFeats.end(); aFeat++) {
 260           if ((*aFeat)->data()->isValid() &&
 261             (*aFeat)->data()->execState() == ModelAPI_StateMustBeUpdated) {
 262             addModified(*aFeat, FeaturePtr());
 263           }
 264         }
 265       }
 266       processFeatures();
 267       myIsPreviewBlocked = aPreviewBlockedState;
 268     }
 269   }
 270
 271   if (theMessage->eventID() == kStabilityEvent) {
 272     updateStability(theMessage->sender());
 273     return;
 274   }
 275   if (theMessage->eventID() == kPreviewBlockedEvent) {
 276     myIsPreviewBlocked = true;
 277     return;
 278   }
 279   if (theMessage->eventID() == kPreviewRequestedEvent) {
 280     if (myIsPreviewBlocked) {
 281       bool anUpdateState = myUpdateBlocked;
 282       myUpdateBlocked = false;
 283       myIsPreviewBlocked = false;
 284       processFeatures();
 285       myIsPreviewBlocked = true;
 286       myUpdateBlocked = anUpdateState;
 287     }
 288     return;
 289   }
 290   if (theMessage->eventID() == kUpdatedSel) {
 291     std::shared_ptr<ModelAPI_ObjectUpdatedMessage> aMsg =
 292         std::dynamic_pointer_cast<ModelAPI_ObjectUpdatedMessage>(theMessage);
 293     updateSelection(aMsg->objects());
 294   }
 295   // creation is added to "update" to avoid recomputation twice:
 296   // on create and immediately after on update
 297   if (theMessage->eventID() == kCreatedEvent) {
 298     std::shared_ptr<ModelAPI_ObjectUpdatedMessage> aMsg =
 299         std::dynamic_pointer_cast<ModelAPI_ObjectUpdatedMessage>(theMessage);
 300     const std::set<ObjectPtr>& anObjs = aMsg->objects();
 301     std::set<ObjectPtr>::const_iterator anObjIter = anObjs.cbegin();
 302     std::list<ObjectPtr> aFeatures, aResults;
 303     for(; anObjIter != anObjs.cend(); anObjIter++) {
 304       if (std::dynamic_pointer_cast<Model_Document>((*anObjIter)->document())->executeFeatures()) {
 305         if ((*anObjIter)->groupName() == ModelAPI_Feature::group()) {
 306           // results creation means enabling, not update
 307           aFeatures.push_back(*anObjIter);
 308         } else {
 309           aResults.push_back(*anObjIter);
 310           ResultPartPtr aPart = std::dynamic_pointer_cast<ModelAPI_ResultPart>(*anObjIter);
 311           if (aPart.get() && aPart->data().get() && aPart->data()->isValid()) {
 312             aPart->shape(); // to update the shape on creation of the result
 313           }
 314         }
 315       }
 316     }
 317     ModelAPI_EventCreator::get()->sendUpdated(aFeatures, kUpdatedEvent);
 318     ModelAPI_EventCreator::get()->sendUpdated(aResults, kRedisplayEvent);
 319     return;
 320   }
 321   if (theMessage->eventID() == kUpdatedEvent) {
 322     std::shared_ptr<ModelAPI_ObjectUpdatedMessage> aMsg =
 323         std::dynamic_pointer_cast<ModelAPI_ObjectUpdatedMessage>(theMessage);
 324     const std::set<ObjectPtr>& anObjs = aMsg->objects();
 325     std::set<ObjectPtr>::const_iterator anObjIter = anObjs.cbegin();
 326     bool aSomeModified = false; // check that features not changed: only redisplay is needed
 327     for(; anObjIter != anObjs.cend(); anObjIter++) {
 328       if (!(*anObjIter)->data()->isValid())
 329         continue;
 330 #ifdef DEB_UPDATE
 331       std::cout<<">>> in event updated "<<(*anObjIter)->groupName()<<
 332         " "<<(*anObjIter)->data()->name()<<std::endl;
 333 #endif
 334       if ((*anObjIter)->groupName() == ModelAPI_ResultParameter::group()) {
 335         myIsParamUpdated = true;
 336       }
 337       // on undo/redo, abort do not update persistent features
 338       FeaturePtr anUpdated = std::dynamic_pointer_cast<ModelAPI_Feature>(*anObjIter);
 339       if (anUpdated.get()) {
 340         if (addModified(anUpdated, FeaturePtr()))
 341           aSomeModified = true;
 342         if (myUpdateBlocked) { // execute this feature anyway to show the current result
 343           /*if (!anUpdated->isStable() && anUpdated->results().size() && (
 344               anUpdated->firstResult()->groupName() == ModelAPI_ResultBody::group() ||
 345               anUpdated->firstResult()->groupName() == ModelAPI_ResultPart::group())) {
 346             if (aFactory->validate(anUpdated)) {
 347               executeFeature(anUpdated);
 348               redisplayWithResults(anUpdated, ModelAPI_StateNothing, false);
 349               static Events_ID EVENT_DISP = aLoop->eventByName(EVENT_OBJECT_TO_REDISPLAY);
 350               aLoop->flush(EVENT_DISP);
 351             }
 352           }*/
 353         }
 354       } else {
 355         // process the updated result as update of features that refers to this result
 356         const std::set<std::shared_ptr<ModelAPI_Attribute> >&
 357           aRefs = (*anObjIter)->data()->refsToMe();
 358         std::set<std::shared_ptr<ModelAPI_Attribute> >::const_iterator aRefIter = aRefs.cbegin();
 359         FeaturePtr aReason;
 360         ResultPtr aReasonResult = std::dynamic_pointer_cast<ModelAPI_Result>(*anObjIter);
 361         if (aReasonResult.get())
 362           aReason = (*anObjIter)->document()->feature(aReasonResult);
 363         for(; aRefIter != aRefs.cend(); aRefIter++) {
 364           if (!(*aRefIter)->owner()->data()->isValid())
 365             continue;
 366           anUpdated = std::dynamic_pointer_cast<ModelAPI_Feature>((*aRefIter)->owner());
 367           if (anUpdated.get()) {
 368             if (addModified(anUpdated, aReason))
 369               aSomeModified = true;
 370           }
 371         }
 372       }
 373     }
 374     // this event is for solver update, not here, do not react immediately
 375     if (aSomeModified) {
 376         processFeatures();
 377     }
 378   } else if (theMessage->eventID() == kOpFinishEvent || theMessage->eventID() == kOpAbortEvent ||
 379       theMessage->eventID() == kOpStartEvent) {
 380     myIsPreviewBlocked = false;
 381
 382     if (theMessage->eventID() == kOpFinishEvent) {// if update is blocked, skip
 383       myIsFinish = true;
 384       // add features that wait for finish as modified
 385       std::map<std::shared_ptr<ModelAPI_Feature>, std::set<std::shared_ptr<ModelAPI_Feature> > >::
 386         iterator aFeature = myProcessOnFinish.begin();
 387       for(; aFeature != myProcessOnFinish.end(); aFeature++) {
 388         if (aFeature->first->data()->isValid()) {// there may be already removed while wait
 389           if (aFeature->second.empty()) {
 390             addModified(aFeature->first, FeaturePtr());
 391             continue;
 392           }
 393           std::set<std::shared_ptr<ModelAPI_Feature> >::iterator aReasons;
 394           for(aReasons = aFeature->second.begin(); aReasons != aFeature->second.end(); aReasons++){
 395             addModified(aFeature->first, *aReasons);
 396           }
 397         }
 398       }
 399       myIsFinish = false;
 400     }
 401     // processed features must be only on finish, so clear anyway (to avoid re-import on load)
 402     myProcessOnFinish.clear();
 403
 404     // #2156: current must be sketch, left after the macro execution
 405     DocumentPtr anActiveDoc = ModelAPI_Session::get()->activeDocument();
 406     FeaturePtr aCurrent;
 407     if (anActiveDoc.get())
 408       aCurrent = anActiveDoc->currentFeature(false);
 409
 410     if (!(theMessage->eventID() == kOpStartEvent)) {
 411       processFeatures(false);
 412     }
 413
 414     if (anActiveDoc.get() && aCurrent.get() && aCurrent->data()->isValid()) {
 415       if (anActiveDoc->currentFeature(false) != aCurrent &&
 416           ModelAPI_Tools::compositeOwner(anActiveDoc->currentFeature(false)) == aCurrent)
 417         anActiveDoc->setCurrentFeature(aCurrent, false); // #2156 make the current feature back
 418     }
 419
 420     // remove all macros before clearing all created
 421     std::set<FeaturePtr>::iterator anUpdatedIter = myWaitForFinish.begin();
 422     while(anUpdatedIter != myWaitForFinish.end()) {
 423       FeaturePtr aFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(*anUpdatedIter);
 424       if (aFeature.get()) {
 425         // remove macro on finish
 426         if (aFeature->isMacro()) {
 427           aFeature->document()->removeFeature(aFeature);
 428           myWaitForFinish.erase(aFeature);
 429         }
 430         // to avoid the map update problems on "remove"
 431         if (myWaitForFinish.find(aFeature) == myWaitForFinish.end()) {
 432           anUpdatedIter = myWaitForFinish.begin();
 433         } else {
 434           anUpdatedIter++;
 435         }
 436       } else {
 437         anUpdatedIter++;
 438       }
 439     }
 440     // the redisplay signal should be flushed in order
 441     // to erase the feature presentation in the viewer
 442     // if should be done after removeFeature() of document,
 443     // by this reason, upper processFeatures() do not perform this flush
 444     Events_Loop::loop()->flush(kRedisplayEvent);
 445
 446     // in the end of transaction everything is updated, so clear the old objects
 447     //myIsParamUpdated = false; // to avoid problems in sprocket.py parameter update
 448     myWaitForFinish.clear();
 449   } else if (theMessage->eventID() == kReorderEvent) {
 450     std::shared_ptr<ModelAPI_OrderUpdatedMessage> aMsg =
 451       std::dynamic_pointer_cast<ModelAPI_OrderUpdatedMessage>(theMessage);
 452     if (aMsg->reordered().get())
 453       addModified(aMsg->reordered(), aMsg->reordered()); // to update all attributes
 454   }
 455 }
 456
 457 void Model_Update::processFeatures(const bool theFlushRedisplay)
 458 {
 459    // perform update of everything if it is not performed right now or any preview is blocked
 460   if (!myIsProcessed && !myIsPreviewBlocked) {
 461     myIsProcessed = true;
 462     #ifdef DEB_UPDATE
 463       std::cout<<"****** Start processing"<<std::endl;
 464     #endif
 465
 466     while(!myModified.empty()) {
 467       processFeature(myModified.begin()->first);
 468     }
 469     myIsProcessed = false;
 470
 471     // to update the object browser if something is updated/created during executions
 472     static Events_Loop* aLoop = Events_Loop::loop();
 473     static const Events_ID kCreatedEvent= aLoop->eventByName(EVENT_OBJECT_CREATED);
 474     aLoop->flush(kCreatedEvent);
 475     static const Events_ID kUpdatedEvent = aLoop->eventByName(EVENT_OBJECT_UPDATED);
 476     aLoop->flush(kUpdatedEvent);
 477
 478     // flush to update display
 479     if (theFlushRedisplay) {
 480       static Events_ID EVENT_DISP = aLoop->eventByName(EVENT_OBJECT_TO_REDISPLAY);
 481       aLoop->flush(EVENT_DISP);
 482     }
 483     #ifdef DEB_UPDATE
 484       std::cout<<"****** End processing"<<std::endl;
 485     #endif
 486     myProcessed.clear();
 487   }
 488 }
 489
 490 // collects all the features this feature depends on: reasons
 491 static void allReasons(FeaturePtr theFeature, std::set<FeaturePtr>& theReasons) {
 492   std::list<std::pair<std::string, std::list<std::shared_ptr<ModelAPI_Object> > > > aDeps;
 493   theFeature->data()->referencesToObjects(aDeps);
 494   std::list<std::pair<std::string, std::list<std::shared_ptr<ModelAPI_Object> > > >::iterator
 495     anAttrsIter = aDeps.begin();
 496   for(; anAttrsIter != aDeps.end(); anAttrsIter++) {
 497     if (theFeature->attribute(anAttrsIter->first)->isArgument()) {
 498       std::list<std::shared_ptr<ModelAPI_Object> >::iterator aDepIter = anAttrsIter->second.begin();
 499       for(; aDepIter != anAttrsIter->second.end(); aDepIter++) {
 500         FeaturePtr aDepFeat = std::dynamic_pointer_cast<ModelAPI_Feature>(*aDepIter);
 501         if (!aDepFeat.get()) { // so, it depends on the result and process the feature owner of it
 502           ResultPtr aDepRes = std::dynamic_pointer_cast<ModelAPI_Result>(*aDepIter);
 503           if (aDepRes.get()) {
 504             aDepFeat = (*aDepIter)->document()->feature(aDepRes);
 505           }
 506         }
 507         if (aDepFeat.get() && aDepFeat->data()->isValid()) {
 508           theReasons.insert(aDepFeat);
 509         }
 510       }
 511     }
 512   }
 513   if (theFeature->getKind() == "Part") {
 514     // part is not depended on its subs directly, but subs must be iterated anyway
 515     CompositeFeaturePtr aPart = std::dynamic_pointer_cast<ModelAPI_CompositeFeature>(theFeature);
 516     int aNum = aPart->numberOfSubs();
 517     for(int a = 0; a < aNum; a++) {
 518       FeaturePtr aSub = aPart->subFeature(a);
 519       if (aSub.get() && aSub->data()->isValid()) {
 520         theReasons.insert(aSub);
 521       }
 522     }
 523   }
 524 }
 525
 526 bool Model_Update::processFeature(FeaturePtr theFeature)
 527 {
 528   static ModelAPI_ValidatorsFactory* aFactory = ModelAPI_Session::get()->validators();
 529
 530   if (!theFeature->data()->isValid()) { // deleted feature, just remove from all containers
 531     if (myModified.find(theFeature) != myModified.end())
 532       myModified.erase(theFeature);
 533     return false;
 534   }
 535
 536   if (theFeature->isPersistentResult()) {
 537     if (!std::dynamic_pointer_cast<Model_Document>((theFeature)->document())->executeFeatures())
 538       return false;
 539   }
 540
 541   // check this feature is not yet checked or processed
 542   bool aIsModified = myModified.find(theFeature) != myModified.end();
 543   if (!aIsModified && myIsFinish) { // get info about the modification for features without preview
 544     if (theFeature->data()->execState() == ModelAPI_StateMustBeUpdated) {
 545       aIsModified = true;
 546       std::set<std::shared_ptr<ModelAPI_Feature> > aNewSet;
 547       // contains itself, so, we don't know which was the reason and the reason is any
 548       aNewSet.insert(theFeature);
 549       myModified[theFeature] = aNewSet;
 550     }
 551   }
 552
 553   if (myProcessed.find(theFeature) == myProcessed.end()) {
 554     myProcessed[theFeature] = 0;
 555   } else if (aIsModified) {
 556     int aCount = myProcessed[theFeature];
 557     if (aCount > 100) {
 558       // too many repetition of processing (in VS it may crash on 330 with stack overflow)
 559       Events_InfoMessage("Model_Update",
 560         "Feature '%1' is updated in infinitive loop").arg(theFeature->data()->name()).send();
 561       // to stop iteration
 562       myModified.clear();
 563       return false;
 564     }
 565     myProcessed[theFeature] = aCount + 1;
 566   }
 567
 568 #ifdef DEB_UPDATE
 569     std::cout<<"* Process feature "<<theFeature->name()<<std::endl;
 570 #endif
 571
 572   // update the sketch plane before the sketch sub-elements are recomputed
 573   // (otherwise sketch will update plane, modify subs, after executed, but with old subs edges)
 574     if (aIsModified && theFeature->getKind() == "Sketch") {
 575 #ifdef DEB_UPDATE
 576       std::cout << "****** Update sketch args " << theFeature->name() << std::endl;
 577 #endif
 578       AttributeSelectionPtr anExtSel = theFeature->selection("External");
 579       if (anExtSel.get()) {
 580         ResultPtr aContext = anExtSel->context();
 581         if (aContext.get() && aContext->document().get()) {
 582           FeaturePtr anExtBase = aContext->document()->feature(aContext);
 583           if (anExtBase.get()) {
 584             processFeature(anExtBase);
 585           }
 586           std::shared_ptr<GeomDataAPI_Point> anOrigin =
 587             std::dynamic_pointer_cast<GeomDataAPI_Point>(theFeature->attribute("Origin"));
 588           double anOX = anOrigin->x(), anOY = anOrigin->y(), anOZ = anOrigin->z();
 589           std::shared_ptr<GeomDataAPI_Dir> aDir =
 590             std::dynamic_pointer_cast<GeomDataAPI_Dir>(theFeature->attribute("DirX"));
 591           double aDX = aDir->x(), aDY = aDir->y(), aDZ = aDir->z();
 592           std::shared_ptr<GeomDataAPI_Dir> aNorm =
 593             std::dynamic_pointer_cast<GeomDataAPI_Dir>(theFeature->attribute("Norm"));
 594           double aNX = aNorm->x(), aNY = aNorm->y(), aNZ = aNorm->z();
 595           // update sketch plane
 596           updateArguments(theFeature);
 597           theFeature->attributeChanged("External"); // to recompute origin, direction and normal
 598           // check it is updated, so all must be changed
 599           if (anOrigin->x() != anOX || anOrigin->y() != anOY || anOrigin->z() != anOZ ||
 600               aDir->x() != aDX || aDir->y() != aDY || aDir->z() != aDZ ||
 601               aNorm->x() != aNX || aNorm->y() != aNY || aNorm->z() != aNZ)
 602           {
 603             std::set<FeaturePtr> aWholeR;
 604             allReasons(theFeature, aWholeR);
 605             std::set<FeaturePtr>::iterator aRIter = aWholeR.begin();
 606             for (; aRIter != aWholeR.end(); aRIter++) {
 607               if ((*aRIter)->data()->selection("External").get())
 608                 (*aRIter)->attributeChanged("External");
 609             }
 610           }
 611         }
 612       }
 613     }
 614
 615   if (!aIsModified) { // no modification is needed
 616     return false;
 617   }
 618
 619   // evaluate parameter before the sub-elements update:
 620   // it updates dependencies on evaluation (#1085)
 621   if (theFeature->getKind() == "Parameter") {
 622     theFeature->execute();
 623   }
 624
 625   bool isReferencedInvalid = false;
 626   // check all features this feature depended on (recursive call of updateFeature)
 627   std::set<FeaturePtr>& aReasons = myModified[theFeature];
 628   bool allSubsUsed = aReasons.find(theFeature) != aReasons.end();
 629   if (allSubsUsed) {
 630     // add all subs in aReasons and temporary remove "theFeature" to avoid processing itself
 631     allReasons(theFeature, aReasons);
 632     aReasons.erase(theFeature);
 633   }
 634   // take reasons one by one (they may be added during the feature process
 635   // (circle by the radius of sketch)
 636   std::set<FeaturePtr> aProcessedReasons;
 637   while(!aReasons.empty()) {
 638     FeaturePtr aReason = *(aReasons.begin());
 639 #ifdef DEB_UPDATE
 640     //cout<<theFeature->name()<<" process next reason "<<aReason->name()<<endl;
 641 #endif
 642     if (aReason != theFeature && (aReason)->data()->isValid()) {
 643       if (processFeature(aReason))
 644         aIsModified = true;
 645       // check validity of aReason once again because it may be removed by dependent feature
 646       // (e.g. by SketchPlugin_IntersectionPoint)
 647       if (!aReason->data()->isValid() ||
 648           aReason->data()->execState() == ModelAPI_StateInvalidArgument)
 649         isReferencedInvalid = true;
 650     }
 651     // searching for the next not used reason
 652     aProcessedReasons.insert(aReason);
 653     // check theFeature is still in the list of modified, because it may be removed sometimes
 654     // while updating SketchPlugin_Ellipse
 655     if (myModified.find(theFeature) != myModified.end())
 656       aReasons.erase(aReason);
 657     else
 658       break;
 659   }
 660   // restore the modified reasons: they will be used in the update of arguments
 661   if (allSubsUsed) { // restore theFeature in this set
 662     aProcessedReasons.insert(theFeature);
 663   }
 664   myModified[theFeature] = aProcessedReasons;
 665
 666   // do not execute the composite that contains the current
 667   bool isPostponedMain = false;
 668   CompositeFeaturePtr aCompos = std::dynamic_pointer_cast<ModelAPI_CompositeFeature>(theFeature);
 669   if (theFeature->getKind() == "ExtrusionSketch" && aCompos.get()) {
 670     CompositeFeaturePtr aCurrentOwner =
 671       ModelAPI_Tools::compositeOwner(theFeature->document()->currentFeature(false));
 672     isPostponedMain = aCurrentOwner.get() && aCompos->isSub(aCurrentOwner);
 673   } else if (theFeature->getKind() == "Sketch" &&
 674     std::dynamic_pointer_cast<Model_Document>((theFeature)->document())->executeFeatures()) {
 675     // send event that sketch is prepared to be recomputed
 676     static Events_ID anID = Events_Loop::eventByName("SketchPrepared");
 677     std::shared_ptr<Events_Message> aMsg(new Events_Message(anID, this));
 678     Events_Loop* aLoop = Events_Loop::loop();
 679     // in case it is finish operation, flush for the sketch other events (#2450)
 680     aLoop->flush(aLoop->eventByName(EVENT_OBJECT_UPDATED));
 681     aLoop->send(aMsg);
 682     // check that sub-elements of sketch are updated => sketch must be re-processed
 683     std::set<FeaturePtr> aWholeR;
 684     allReasons(theFeature, aWholeR);
 685     std::set<FeaturePtr>::iterator aRIter = aWholeR.begin();
 686     for(; aRIter != aWholeR.end(); aRIter++) {
 687       if (myModified.find(*aRIter) != myModified.end()) {
 688         processFeature(theFeature);
 689         return true;
 690       }
 691     }
 692   }
 693
 694 #ifdef DEB_UPDATE
 695   std::cout<<"Update args "<<theFeature->name()<<std::endl;
 696 #endif
 697   // TestImport.py : after arguments are updated, theFeature may be removed
 698   if (!theFeature->data()->isValid())
 699     return false;
 700   // Update selection and parameters attributes first, before sub-features analysis (sketch plane).
 701   updateArguments(theFeature);
 702
 703   // add this feature to the processed right now to be able remove it from this list on
 704   // update signal during this feature execution
 705   myModified.erase(theFeature);
 706   if (myNotPersistentRefs.find(theFeature) != myNotPersistentRefs.end())
 707     myNotPersistentRefs.erase(theFeature);
 708   if (theFeature->data()->execState() == ModelAPI_StateMustBeUpdated)
 709     theFeature->data()->execState(ModelAPI_StateDone);
 710
 711   // this checking must be after the composite feature sub-elements processing:
 712   // composite feature status may depend on it's sub-elements
 713   if ((theFeature->data()->execState() == ModelAPI_StateInvalidArgument || isReferencedInvalid) &&
 714     theFeature->getKind() != "Part") {
 715       // don't disable Part because it will make disabled all the features
 716       // (performance and problems with the current feature)
 717   #ifdef DEB_UPDATE
 718     std::cout<<"Invalid args "<<theFeature->name()<<std::endl;
 719   #endif
 720     theFeature->eraseResults(false);
 721     redisplayWithResults(theFeature, ModelAPI_StateInvalidArgument); // result also must be updated
 722     return true; // so, feature is modified (results are erased)
 723   }
 724
 725   // execute feature if it must be updated
 726   ModelAPI_ExecState aState = theFeature->data()->execState();
 727   if (aFactory->validate(theFeature)) {
 728     if (!isPostponedMain) {
 729       bool aDoExecute = true;
 730       if (myUpdateBlocked) {
 731         if (!theFeature->isStable()) {
 732           aDoExecute = true;
 733         } else if (theFeature->results().size()) { // execute only not persistent results features
 734           aDoExecute = !theFeature->isPersistentResult();
 735         } else {
 736           aDoExecute = aState != ModelAPI_StateInvalidArgument;
 737         }
 738       }
 739       if (aDoExecute) {
 740         executeFeature(theFeature);
 741       } else {
 742         // store information that this feature must be executed later
 743         theFeature->data()->execState(ModelAPI_StateMustBeUpdated);
 744       }
 745     }
 746   } else {
 747     #ifdef DEB_UPDATE
 748       std::cout<<"Feature is not valid, erase results "<<theFeature->name()<<std::endl;
 749     #endif
 750     theFeature->eraseResults(false);
 751     redisplayWithResults(theFeature, ModelAPI_StateInvalidArgument); // result also must be updated
 752   }
 753   return true;
 754 }
 755
 756 void Model_Update::redisplayWithResults(
 757   FeaturePtr theFeature, const ModelAPI_ExecState theState, bool theUpdateState)
 758 {
 759   // make updated and redisplay all results
 760   static Events_ID EVENT_DISP = Events_Loop::loop()->eventByName(EVENT_OBJECT_TO_REDISPLAY);
 761
 762   std::list<ResultPtr> allResults;
 763   ModelAPI_Tools::allResults(theFeature, allResults);
 764   std::list<ResultPtr>::iterator aRIter = allResults.begin();
 765   for (; aRIter != allResults.cend(); aRIter++) {
 766     std::shared_ptr<ModelAPI_Result> aRes = *aRIter;
 767     if (!aRes->isDisabled()) {
 768       // update state only for enabled results
 769       // (Placement Result Part may make the original Part Result as invalid)
 770       if (theUpdateState)
 771         aRes->data()->execState(theState);
 772     }
 773     if (theFeature->data()->updateID() > aRes->data()->updateID()) {
 774       aRes->data()->setUpdateID(theFeature->data()->updateID());
 775     }
 776     ModelAPI_EventCreator::get()->sendUpdated(aRes, EVENT_DISP);
 777   }
 778   // to redisplay "presentable" feature (for ex. distance constraint)
 779   ModelAPI_EventCreator::get()->sendUpdated(theFeature, EVENT_DISP);
 780   if (theUpdateState)
 781     theFeature->data()->execState(theState);
 782 }
 783
 784 /// Updates the state by the referenced object: if something bad with it, set state for this one
 785 ModelAPI_ExecState stateByReference(ObjectPtr theTarget, const ModelAPI_ExecState theCurrent)
 786 {
 787   if (theTarget) {
 788     ModelAPI_ExecState aRefState = theTarget->data()->execState();
 789     if (aRefState == ModelAPI_StateMustBeUpdated) {
 790       if (theCurrent == ModelAPI_StateDone)
 791         return ModelAPI_StateMustBeUpdated;
 792     } else if (aRefState != ModelAPI_StateDone) {
 793       return ModelAPI_StateInvalidArgument;
 794     }
 795   }
 796   return theCurrent;
 797 }
 798
 799 void Model_Update::updateArguments(FeaturePtr theFeature) {
 800   // perform this method also for disabled features: to make "not done" state for
 801   // features referenced to the active and modified features
 802   static ModelAPI_ValidatorsFactory* aFactory = ModelAPI_Session::get()->validators();
 803
 804   ModelAPI_ExecState aState = theFeature->data()->execState();
 805   if (aState == ModelAPI_StateExecFailed) { // try again failed feature: issue 577
 806     aState = ModelAPI_StateMustBeUpdated;
 807   }
 808   if (aState == ModelAPI_StateInvalidArgument) // a chance to be corrected
 809     aState = ModelAPI_StateMustBeUpdated;
 810   // check the parameters state
 811   // Integer
 812   {
 813     std::list<AttributePtr> anAttrinbutes =
 814       theFeature->data()->attributes(ModelAPI_AttributeInteger::typeId());
 815     std::list<AttributePtr>::iterator anIter = anAttrinbutes.begin();
 816     for(; anIter != anAttrinbutes.end(); anIter++) {
 817       AttributeIntegerPtr anAttribute =
 818         std::dynamic_pointer_cast<ModelAPI_AttributeInteger>(*anIter);
 819       if (anAttribute.get() && !anAttribute->text().empty()) {
 820         if (myIsParamUpdated) {
 821           ModelAPI_AttributeEvalMessage::send(anAttribute, this);
 822         }
 823         if (anAttribute->expressionInvalid()) {
 824           aState = ModelAPI_StateInvalidArgument;
 825         }
 826       }
 827     }
 828   }
 829   // Double
 830   {
 831     std::list<AttributePtr> aDoubles =
 832       theFeature->data()->attributes(ModelAPI_AttributeDouble::typeId());
 833     std::list<AttributePtr>::iterator aDoubleIter = aDoubles.begin();
 834     for(; aDoubleIter != aDoubles.end(); aDoubleIter++) {
 835       AttributeDoublePtr aDouble =
 836         std::dynamic_pointer_cast<ModelAPI_AttributeDouble>(*aDoubleIter);
 837       if (aDouble.get() && !aDouble->text().empty()) {
 838         if (myIsParamUpdated) {
 839           ModelAPI_AttributeEvalMessage::send(aDouble, this);
 840         }
 841         if (aDouble->expressionInvalid()) {
 842           aState = ModelAPI_StateInvalidArgument;
 843         }
 844       }
 845     }
 846   }
 847   // Point
 848   {
 849     std::list<AttributePtr> anAttributes =
 850       theFeature->data()->attributes(GeomDataAPI_Point::typeId());
 851     std::list<AttributePtr>::iterator anIter = anAttributes.begin();
 852     for(; anIter != anAttributes.end(); anIter++) {
 853       AttributePointPtr aPointAttribute =
 854         std::dynamic_pointer_cast<GeomDataAPI_Point>(*anIter);
 855       if (aPointAttribute.get() && (!aPointAttribute->textX().empty() ||
 856           !aPointAttribute->textY().empty() || !aPointAttribute->textZ().empty())) {
 857         if (myIsParamUpdated) {
 858           ModelAPI_AttributeEvalMessage::send(aPointAttribute, this);
 859         }
 860         if ((!aPointAttribute->textX().empty() && aPointAttribute->expressionInvalid(0)) ||
 861           (!aPointAttribute->textY().empty() && aPointAttribute->expressionInvalid(1)) ||
 862           (!aPointAttribute->textZ().empty() && aPointAttribute->expressionInvalid(2)))
 863           aState = ModelAPI_StateInvalidArgument;
 864       }
 865     }
 866   }
 867   // Point2D
 868   {
 869     std::list<AttributePtr> anAttributes =
 870       theFeature->data()->attributes(GeomDataAPI_Point2D::typeId());
 871     std::list<AttributePtr>::iterator anIter = anAttributes.begin();
 872     for(; anIter != anAttributes.end(); anIter++) {
 873       AttributePoint2DPtr aPoint2DAttribute =
 874         std::dynamic_pointer_cast<GeomDataAPI_Point2D>(*anIter);
 875       if (aPoint2DAttribute.get()) {
 876         if (myIsParamUpdated && (!aPoint2DAttribute->textX().empty() ||
 877             !aPoint2DAttribute->textY().empty())) {
 878           ModelAPI_AttributeEvalMessage::send(aPoint2DAttribute, this);
 879         }
 880         if ((!aPoint2DAttribute->textX().empty() && aPoint2DAttribute->expressionInvalid(0)) ||
 881           (!aPoint2DAttribute->textY().empty() && aPoint2DAttribute->expressionInvalid(1)))
 882           aState = ModelAPI_StateInvalidArgument;
 883       }
 884     }
 885   }
 886   // update the selection attributes if any
 887   std::list<AttributePtr> aRefs =
 888     theFeature->data()->attributes(ModelAPI_AttributeSelection::typeId());
 889   std::list<AttributePtr>::iterator aRefsIter = aRefs.begin();
 890   for (; aRefsIter != aRefs.end(); aRefsIter++) {
 891     std::shared_ptr<ModelAPI_AttributeSelection> aSel =
 892       std::dynamic_pointer_cast<ModelAPI_AttributeSelection>(*aRefsIter);
 893     ObjectPtr aContext = aSel->context();
 894     // update argument only if the referenced object is ready to use
 895     if (aContext.get() && !aContext->isDisabled()) {
 896       if (isReason(theFeature, aContext)) {
 897         if (!aSel->update()) { // this must be done on execution since it may be long operation
 898           bool isObligatory = !aFactory->isNotObligatory(
 899             theFeature->getKind(), theFeature->data()->id(aSel)) &&
 900             aFactory->isCase(theFeature, theFeature->data()->id(aSel));
 901           if (isObligatory)
 902             aState = ModelAPI_StateInvalidArgument;
 903         }
 904       }
 905     } else if (aContext.get()) {
 906       // here it may be not obligatory, but if the reference is wrong, it should not be correct
 907       bool isObligatory = aFactory->isCase(theFeature, theFeature->data()->id(aSel));
 908       if (isObligatory)
 909         aState = ModelAPI_StateInvalidArgument;
 910     } else if (theFeature->getKind() == "Sketch" && aSel->id() == "External" &&
 911                aSel->isInitialized()) {
 912       // #19703 : if sketch plane was selected, but after context disappears, it must become invalid
 913       aSel->update();
 914       if (aSel->isInvalid()) {
 915           aState = ModelAPI_StateInvalidArgument;
 916       }
 917     }
 918   }
 919   // update the selection list attributes if any
 920   aRefs = theFeature->data()->attributes(ModelAPI_AttributeSelectionList::typeId());
 921   for (aRefsIter = aRefs.begin(); aRefsIter != aRefs.end(); aRefsIter++) {
 922     std::shared_ptr<ModelAPI_AttributeSelectionList> aSel =
 923       std::dynamic_pointer_cast<ModelAPI_AttributeSelectionList>(*aRefsIter);
 924     // #19071 : avoid sending of update event in cycle
 925     bool aWasBlocked = theFeature->data()->blockSendAttributeUpdated(true);
 926     // list to keep the shared pointers while update is blocked (in messages raw poiters are used)
 927     std::list<AttributeSelectionPtr> anAttrList;
 928     for(int a = aSel->size() - 1; a >= 0; a--) {
 929       std::shared_ptr<ModelAPI_AttributeSelection> aSelAttr =
 930         std::dynamic_pointer_cast<ModelAPI_AttributeSelection>(aSel->value(a));
 931       if (aSelAttr) {
 932         ObjectPtr aContext = aSelAttr->context();
 933         // update argument only if the referenced object is ready to use
 934         if (aContext.get() && !aContext->isDisabled()) {
 935           if (isReason(theFeature, aContext)) {
 936             anAttrList.push_back(aSelAttr);
 937             if (!aSelAttr->update()) {
 938               bool isObligatory = !aFactory->isNotObligatory(
 939                 theFeature->getKind(), theFeature->data()->id(aSel)) &&
 940                 aFactory->isCase(theFeature, theFeature->data()->id(aSel));
 941               if (isObligatory)
 942                 aState = ModelAPI_StateInvalidArgument;
 943             }
 944           }
 945         } else if (aContext.get()) {
 946           // here it may be not obligatory, but if the reference is wrong, it should not be correct
 947           bool isObligatory = aFactory->isCase(theFeature, theFeature->data()->id(aSel));
 948           if (isObligatory)
 949             aState = ModelAPI_StateInvalidArgument;
 950         }
 951       }
 952     }
 953     if (!aWasBlocked)
 954       theFeature->data()->blockSendAttributeUpdated(false);
 955   }
 956
 957   if (aState != ModelAPI_StateDone)
 958     theFeature->data()->execState(aState);
 959 }
 960
 961 bool Model_Update::isReason(std::shared_ptr<ModelAPI_Feature>& theFeature,
 962      std::shared_ptr<ModelAPI_Object> theReason)
 963 {
 964   std::map<std::shared_ptr<ModelAPI_Feature>, std::set<std::shared_ptr<ModelAPI_Feature> > >
 965     ::iterator aReasonsIt = myModified.find(theFeature);
 966   if (aReasonsIt != myModified.end()) {
 967     if (aReasonsIt->second.find(theFeature) != aReasonsIt->second.end())
 968       return true; // any is reason if it contains itself
 969     FeaturePtr aReasFeat = std::dynamic_pointer_cast<ModelAPI_Feature>(theReason);
 970     if (!aReasFeat.get()) { // try to get feature of this result
 971       ResultPtr aReasRes = std::dynamic_pointer_cast<ModelAPI_Result>(theReason);
 972       if (aReasRes.get())
 973         aReasFeat = theReason->document()->feature(aReasRes);
 974     }
 975     if (aReasonsIt->second.find(aReasFeat) != aReasonsIt->second.end())
 976       return true;
 977   }
 978   // another try: postponed modification by not-persistences
 979   std::map<std::shared_ptr<ModelAPI_Feature>, std::set<std::shared_ptr<ModelAPI_Feature> > >
 980     ::iterator aNotPersist = myNotPersistentRefs.find(theFeature);
 981   if (aNotPersist != myNotPersistentRefs.end()) {
 982     FeaturePtr aReasFeat = std::dynamic_pointer_cast<ModelAPI_Feature>(theReason);
 983     if (!aReasFeat.get()) { // try to get feature of this result
 984       ResultPtr aReasRes = std::dynamic_pointer_cast<ModelAPI_Result>(theReason);
 985       if (aReasRes.get())
 986         aReasFeat = theReason->document()->feature(aReasRes);
 987     }
 988     if (aNotPersist->second.find(aReasFeat) != aNotPersist->second.end())
 989       return true;
 990   }
 991
 992   // this case only for not-previewed items update state, nothing is changed in args for it
 993   return false;
 994 }
 995
 996 void Model_Update::executeFeature(FeaturePtr theFeature)
 997 {
 998 #ifdef DEB_UPDATE
 999   std::cout<<"Execute Feature "<<theFeature->name()<<std::endl;
1000 #endif
1001   // execute in try-catch to avoid internal problems of the feature
1002   ModelAPI_ExecState aState = ModelAPI_StateDone;
1003   theFeature->data()->execState(ModelAPI_StateDone);
1004   try {
1005     theFeature->execute();
1006     if (theFeature->data()->execState() != ModelAPI_StateDone) {
1007       aState = ModelAPI_StateExecFailed;
1008     } else {
1009       aState = ModelAPI_StateDone;
1010     }
1011   } catch(...) {
1012     aState = ModelAPI_StateExecFailed;
1013     Events_InfoMessage("Model_Update",
1014       "Feature %1 has failed during the execution").arg(theFeature->getKind()).send();
1015   }
1016   // The macro feature has to be deleted in any case even its execution is failed
1017   myWaitForFinish.insert(theFeature);
1018   if (aState != ModelAPI_StateDone) {
1019     theFeature->eraseResults(false);
1020   }
1021   theFeature->data()->setUpdateID(ModelAPI_Session::get()->transactionID());
1022   redisplayWithResults(theFeature, aState);
1023 }
1024
1025 // it is called on GUI edit of feature start
1026 // LCOV_EXCL_START
1027 void Model_Update::updateStability(void* theSender)
1028 {
1029   static ModelAPI_ValidatorsFactory* aFactory = ModelAPI_Session::get()->validators();
1030   if (theSender) {
1031     bool added = false; // object may be was crated
1032     ModelAPI_Object* aSender = static_cast<ModelAPI_Object*>(theSender);
1033     if (aSender && aSender->document()) {
1034       FeaturePtr aFeatureSender =
1035         std::dynamic_pointer_cast<ModelAPI_Feature>(aSender->data()->owner());
1036       if (aFeatureSender.get()) {
1037         Model_Objects* aDocObjects =
1038           std::dynamic_pointer_cast<Model_Document>(aSender->document())->objects();
1039         if (aDocObjects) {
1040           //aDocObjects->synchronizeBackRefs();
1041           // remove or add all concealment refs from this feature
1042           std::list<std::pair<std::string, std::list<ObjectPtr> > > aRefs;
1043           aSender->data()->referencesToObjects(aRefs);
1044           std::list<std::pair<std::string, std::list<ObjectPtr> > >::iterator
1045             aRefIt = aRefs.begin();
1046           for(; aRefIt != aRefs.end(); aRefIt++) {
1047             if (!aFactory->isConcealed(aFeatureSender->getKind(), aRefIt->first))
1048               // take into account only concealed references
1049               // (do not remove the sketch constraint and the edge on constraint edit)
1050               continue;
1051             std::list<ObjectPtr>& aRefFeaturesList = aRefIt->second;
1052             std::list<ObjectPtr>::iterator aReferenced = aRefFeaturesList.begin();
1053             for(; aReferenced != aRefFeaturesList.end(); aReferenced++) {
1054                // stability is only on results: feature to feature reference mean nested
1055               // features, that will remove nesting references
1056               if (aReferenced->get() && (*aReferenced)->data()->isValid() &&
1057                 (*aReferenced)->groupName() != ModelAPI_Feature::group()) {
1058                 std::shared_ptr<Model_Data> aData =
1059                   std::dynamic_pointer_cast<Model_Data>((*aReferenced)->data());
1060                 if (aFeatureSender->isStable()) {
1061                   aData->addBackReference(aFeatureSender, aRefIt->first);
1062                 } else {
1063                   aData->removeBackReference(aFeatureSender, aRefIt->first);
1064                   added = true; // remove of concealment may be caused creation of some result
1065                 }
1066               }
1067             }
1068           }
1069         }
1070       }
1071     }
1072     if (added) {
1073       static Events_Loop* aLoop = Events_Loop::loop();
1074       static Events_ID kEventCreated = aLoop->eventByName(EVENT_OBJECT_CREATED);
1075       aLoop->flush(kEventCreated);
1076     }
1077   }
1078 }
1079 // LCOV_EXCL_STOP
1080
1081 void Model_Update::updateSelection(const std::set<std::shared_ptr<ModelAPI_Object> >& theObjects)
1082 {
1083   std::set<std::shared_ptr<ModelAPI_Object> >::iterator anObj = theObjects.begin();
1084   for(; anObj != theObjects.end(); anObj++) {
1085     std::list<AttributePtr> aRefs =
1086       (*anObj)->data()->attributes(ModelAPI_AttributeSelection::typeId());
1087     std::list<AttributePtr>::iterator aRefsIter = aRefs.begin();
1088     for (; aRefsIter != aRefs.end(); aRefsIter++) {
1089       AttributeSelectionPtr aSel =
1090         std::dynamic_pointer_cast<ModelAPI_AttributeSelection>(*aRefsIter);
1091       bool aRemove = false;
1092       aSel->updateInHistory(aRemove);
1093     }
1094     // update the selection list attributes if any
1095     aRefs = (*anObj)->data()->attributes(ModelAPI_AttributeSelectionList::typeId());
1096     for (aRefsIter = aRefs.begin(); aRefsIter != aRefs.end(); aRefsIter++) {
1097       std::set<int> aRemoveSet;
1098       std::shared_ptr<ModelAPI_AttributeSelectionList> aSel =
1099         std::dynamic_pointer_cast<ModelAPI_AttributeSelectionList>(*aRefsIter);
1100       for(int a = aSel->size() - 1; a >= 0; a--) {
1101         AttributeSelectionPtr aSelAttr =
1102           std::dynamic_pointer_cast<ModelAPI_AttributeSelection>(aSel->value(a));
1103         if (aSelAttr.get()) {
1104           bool aRemove = false;
1105           aSelAttr->updateInHistory(aRemove);
1106           if (aRemove) {
1107             aRemoveSet.insert(a);
1108           }
1109         }
1110       }
1111       aSel->remove(aRemoveSet);
1112     }
1113   }
1114 }