src/Model/Model_Update.cpp

   1 // Copyright (C) 2014-2017  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
  18 // email : webmaster.salome@opencascade.com<mailto:webmaster.salome@opencascade.com>
  19 //
  20
  21 #include <Model_Update.h>
  22 #include <Model_Document.h>
  23 #include <Model_Data.h>
  24 #include <Model_Objects.h>
  25 #include <Model_AttributeSelection.h>
  26 #include <ModelAPI_Feature.h>
  27 #include <ModelAPI_Data.h>
  28 #include <ModelAPI_Document.h>
  29 #include <ModelAPI_Events.h>
  30 #include <ModelAPI_AttributeReference.h>
  31 #include <ModelAPI_AttributeRefList.h>
  32 #include <ModelAPI_AttributeRefAttr.h>
  33 #include <ModelAPI_AttributeSelection.h>
  34 #include <ModelAPI_AttributeSelectionList.h>
  35 #include <ModelAPI_Result.h>
  36 #include <ModelAPI_ResultPart.h>
  37 #include <ModelAPI_Validator.h>
  38 #include <ModelAPI_CompositeFeature.h>
  39 #include <ModelAPI_Session.h>
  40 #include <ModelAPI_Tools.h>
  41 #include <GeomAPI_Shape.h>
  42 #include <GeomDataAPI_Point.h>
  43 #include <GeomDataAPI_Point2D.h>
  44 #include <Events_Loop.h>
  45 #include <Events_LongOp.h>
  46 #include <Events_InfoMessage.h>
  47 #include <Config_PropManager.h>
  48
  49 Model_Update MY_UPDATER_INSTANCE;  /// the only one instance initialized on load of the library
  50 //#define DEB_UPDATE
  51
  52 Model_Update::Model_Update()
  53 {
  54   Events_Loop* aLoop = Events_Loop::loop();
  55   static const Events_ID kChangedEvent = aLoop->eventByName("PreferenceChanged");
  56   aLoop->registerListener(this, kChangedEvent);
  57   static const Events_ID kCreatedEvent = Events_Loop::loop()->eventByName(EVENT_OBJECT_CREATED);
  58   aLoop->registerListener(this, kCreatedEvent);
  59   static const Events_ID kUpdatedEvent = Events_Loop::loop()->eventByName(EVENT_OBJECT_UPDATED);
  60   aLoop->registerListener(this, kUpdatedEvent);
  61   static const Events_ID kOpFinishEvent = aLoop->eventByName("FinishOperation");
  62   aLoop->registerListener(this, kOpFinishEvent);
  63   static const Events_ID kOpAbortEvent = aLoop->eventByName("AbortOperation");
  64   aLoop->registerListener(this, kOpAbortEvent);
  65   static const Events_ID kOpStartEvent = aLoop->eventByName("StartOperation");
  66   aLoop->registerListener(this, kOpStartEvent);
  67   static const Events_ID kStabilityEvent = aLoop->eventByName(EVENT_STABILITY_CHANGED);
  68   aLoop->registerListener(this, kStabilityEvent);
  69   static const Events_ID kPreviewBlockedEvent = aLoop->eventByName(EVENT_PREVIEW_BLOCKED);
  70   aLoop->registerListener(this, kPreviewBlockedEvent);
  71   static const Events_ID kPreviewRequestedEvent = aLoop->eventByName(EVENT_PREVIEW_REQUESTED);
  72   aLoop->registerListener(this, kPreviewRequestedEvent);
  73   static const Events_ID kReorderEvent = aLoop->eventByName(EVENT_ORDER_UPDATED);
  74   aLoop->registerListener(this, kReorderEvent);
  75   static const Events_ID kUpdatedSel = aLoop->eventByName(EVENT_UPDATE_SELECTION);
  76   aLoop->registerListener(this, kUpdatedSel);
  77
  78   //  Config_PropManager::findProp("Model update", "automatic_rebuild")->value() == "true";
  79   myIsParamUpdated = false;
  80   myIsFinish = false;
  81   myIsProcessed = false;
  82   myIsPreviewBlocked = false;
  83 }
  84
  85 bool Model_Update::addModified(FeaturePtr theFeature, FeaturePtr theReason) {
  86
  87   if (!theFeature->data()->isValid())
  88     return false; // delete an extrusion created on the sketch
  89
  90   bool isNotExecuted = theFeature->isPersistentResult() &&
  91     !std::dynamic_pointer_cast<Model_Document>((theFeature)->document())->executeFeatures();
  92   if (isNotExecuted) {
  93     redisplayWithResults(theFeature, ModelAPI_StateNothing, false); // redisplay even not executed
  94     if (!theReason.get()) // no reason => no construction reason
  95       return false;
  96     if (myNotPersistentRefs.find(theFeature) == myNotPersistentRefs.end()) {
  97       myNotPersistentRefs[theFeature].insert(theReason);
  98     } else {
  99       std::set<std::shared_ptr<ModelAPI_Feature> > aNewSet;
 100       aNewSet.insert(theReason);
 101       myNotPersistentRefs[theFeature] = aNewSet;
 102     }
 103     return false;
 104   }
 105
 106   // update arguments for "apply button" state change
 107   if ((!theFeature->isPreviewNeeded() && !myIsFinish) || myIsPreviewBlocked) {
 108     if (theReason.get())
 109       myProcessOnFinish[theFeature].insert(theReason);
 110     else if (myProcessOnFinish.find(theFeature) == myProcessOnFinish.end())
 111       myProcessOnFinish[theFeature] = std::set<std::shared_ptr<ModelAPI_Feature> >();
 112 #ifdef DEB_UPDATE
 113       std::cout<<"*** Add process on finish "<<theFeature->name()<<std::endl;
 114 #endif
 115     // keeps the currently updated features to avoid infinitive cycling here: where feature on
 116     // "updateArguments" sends "updated" (in selection attribute) and goes here again
 117     static std::set<FeaturePtr> aCurrentlyUpdated;
 118     if (aCurrentlyUpdated.find(theFeature) == aCurrentlyUpdated.end()) {
 119       aCurrentlyUpdated.insert(theFeature);
 120       updateArguments(theFeature);
 121       aCurrentlyUpdated.erase(theFeature);
 122     }
 123     // make it without conditions otherwise the apply button may have a bad state
 124     theFeature->data()->execState(ModelAPI_StateDone);
 125     static ModelAPI_ValidatorsFactory* aFactory = ModelAPI_Session::get()->validators();
 126      // need to be validated to update the "Apply" state if not previewed
 127     aFactory->validate(theFeature);
 128
 129     // to redisplay split's arguments presentation, even result is not computed
 130     if (!theFeature->isPreviewNeeded()) {
 131       static Events_Loop* aLoop = Events_Loop::loop();
 132       static const Events_ID kRedisplayEvent = aLoop->eventByName(EVENT_OBJECT_TO_REDISPLAY);
 133       ModelAPI_EventCreator::get()->sendUpdated(theFeature, kRedisplayEvent);
 134       aLoop->flush(kRedisplayEvent);
 135     }
 136
 137     if (!myIsPreviewBlocked)
 138       return true;
 139   }
 140   if (myModified.find(theFeature) != myModified.end()) {
 141     if (theReason.get()) {
 142 #ifdef DEB_UPDATE
 143       //std::cout<<"*** Add already modified "
 144       //   <<theFeature->name()<<" reason "<<theReason->name()<<std::endl;
 145 #endif
 146       myModified[theFeature].insert(theReason);
 147     }
 148     return true;
 149   }
 150   // do not add the disabled, but possibly the sub-elements are not disabled
 151   bool aIsDisabled = theFeature->isDisabled();
 152   if (!aIsDisabled) {
 153     std::set<std::shared_ptr<ModelAPI_Feature> > aNewSet;
 154     if (theFeature->data()->execState() == ModelAPI_StateMustBeUpdated ||
 155         theFeature->data()->execState() == ModelAPI_StateInvalidArgument || // issue 1519
 156         theFeature->data()->execState() == ModelAPI_StateExecFailed) {
 157       // do not forget that in this case all were the reasons
 158       aNewSet.insert(theFeature);
 159     } else {
 160       if (theReason.get())
 161         aNewSet.insert(theReason);
 162     }
 163       myModified[theFeature] = aNewSet;
 164 #ifdef DEB_UPDATE
 165     if (theReason.get()) {
 166       //std::cout<<"*** Add modified "<<theFeature->name()
 167       //  <<" reason "<<theReason->name()<<std::endl;
 168     } else {
 169       //std::cout<<"*** Add modified "<<theFeature->name()<<std::endl;
 170     }
 171 #endif
 172   } else { // will be updated during the finish of the operation, or when it becomes enabled
 173     if (theFeature->data()->execState() == ModelAPI_StateDone ||
 174         theFeature->data()->execState() == ModelAPI_StateExecFailed) // fix issue 1819
 175       theFeature->data()->execState(ModelAPI_StateMustBeUpdated);
 176     else
 177       return true; // do not need iteration deeply if it is already marked as modified or so
 178 #ifdef DEB_UPDATE
 179     //std::cout<<"*** Set modified state "<<theFeature->name()<<std::endl;
 180 #endif
 181   }
 182   // clear processed and fill modified recursively
 183   const std::set<std::shared_ptr<ModelAPI_Attribute> >& aRefs = theFeature->data()->refsToMe();
 184   std::set<std::shared_ptr<ModelAPI_Attribute> >::const_iterator aRefIter = aRefs.cbegin();
 185   for(; aRefIter != aRefs.cend(); aRefIter++) {
 186     if ((*aRefIter)->isArgument()) {
 187       FeaturePtr aReferenced = std::dynamic_pointer_cast<ModelAPI_Feature>((*aRefIter)->owner());
 188       if (aReferenced.get()) {
 189         addModified(aReferenced, theFeature);
 190       }
 191     }
 192   }
 193   // proccess also results
 194   std::list<ResultPtr> allResults; // list of this feature and results
 195   ModelAPI_Tools::allResults(theFeature, allResults);
 196   std::list<ResultPtr>::iterator aRes = allResults.begin();
 197   for(; aRes != allResults.end(); aRes++) {
 198     const std::set<std::shared_ptr<ModelAPI_Attribute> >& aRefs = (*aRes)->data()->refsToMe();
 199     std::set<std::shared_ptr<ModelAPI_Attribute> >::const_iterator aRefIter = aRefs.cbegin();
 200     for(; aRefIter != aRefs.cend(); aRefIter++) {
 201       if ((*aRefIter)->isArgument()) {
 202         FeaturePtr aReferenced = std::dynamic_pointer_cast<ModelAPI_Feature>((*aRefIter)->owner());
 203         if (aReferenced.get()) {
 204           addModified(aReferenced, theFeature);
 205         }
 206       }
 207     }
 208   }
 209
 210   // also add part feature that contains this feature to the modified
 211   if (theFeature->document()->kind() != "PartSet") {
 212     FeaturePtr aPart = ModelAPI_Tools::findPartFeature(
 213       ModelAPI_Session::get()->moduleDocument(), theFeature->document());
 214     if (aPart.get())
 215       addModified(aPart, theFeature);
 216   }
 217   return true;
 218 }
 219
 220 void Model_Update::processEvent(const std::shared_ptr<Events_Message>& theMessage)
 221 {
 222   static Events_Loop* aLoop = Events_Loop::loop();
 223   static const Events_ID kCreatedEvent = aLoop->eventByName(EVENT_OBJECT_CREATED);
 224   static const Events_ID kUpdatedEvent = aLoop->eventByName(EVENT_OBJECT_UPDATED);
 225   static const Events_ID kOpFinishEvent = aLoop->eventByName("FinishOperation");
 226   static const Events_ID kOpAbortEvent = aLoop->eventByName("AbortOperation");
 227   static const Events_ID kOpStartEvent = aLoop->eventByName("StartOperation");
 228   static const Events_ID kStabilityEvent = aLoop->eventByName(EVENT_STABILITY_CHANGED);
 229   static const Events_ID kPreviewBlockedEvent = aLoop->eventByName(EVENT_PREVIEW_BLOCKED);
 230   static const Events_ID kPreviewRequestedEvent = aLoop->eventByName(EVENT_PREVIEW_REQUESTED);
 231   static const Events_ID kReorderEvent = aLoop->eventByName(EVENT_ORDER_UPDATED);
 232   static const Events_ID kRedisplayEvent = aLoop->eventByName(EVENT_OBJECT_TO_REDISPLAY);
 233   static const Events_ID kUpdatedSel = aLoop->eventByName(EVENT_UPDATE_SELECTION);
 234
 235 #ifdef DEB_UPDATE
 236   std::cout<<"****** Event "<<theMessage->eventID().eventText()<<std::endl;
 237 #endif
 238   if (theMessage->eventID() == kStabilityEvent) {
 239     updateStability(theMessage->sender());
 240     return;
 241   }
 242   if (theMessage->eventID() == kPreviewBlockedEvent) {
 243     myIsPreviewBlocked = true;
 244     return;
 245   }
 246   if (theMessage->eventID() == kPreviewRequestedEvent) {
 247     if (myIsPreviewBlocked) {
 248       myIsPreviewBlocked = false;
 249       processFeatures();
 250       myIsPreviewBlocked = true;
 251     }
 252     return;
 253   }
 254   if (theMessage->eventID() == kUpdatedSel) {
 255     std::shared_ptr<ModelAPI_ObjectUpdatedMessage> aMsg =
 256         std::dynamic_pointer_cast<ModelAPI_ObjectUpdatedMessage>(theMessage);
 257     updateSelection(aMsg->objects());
 258   }
 259   // creation is added to "update" to avoid recomputation twice:
 260   // on create and immediately after on update
 261   if (theMessage->eventID() == kCreatedEvent) {
 262     std::shared_ptr<ModelAPI_ObjectUpdatedMessage> aMsg =
 263         std::dynamic_pointer_cast<ModelAPI_ObjectUpdatedMessage>(theMessage);
 264     const std::set<ObjectPtr>& anObjs = aMsg->objects();
 265     std::set<ObjectPtr>::const_iterator anObjIter = anObjs.cbegin();
 266     for(; anObjIter != anObjs.cend(); anObjIter++) {
 267       if (std::dynamic_pointer_cast<Model_Document>((*anObjIter)->document())->executeFeatures()) {
 268         if ((*anObjIter)->groupName() == ModelAPI_Feature::group()) {
 269           // results creation means enabling, not update
 270           ModelAPI_EventCreator::get()->sendUpdated(*anObjIter, kUpdatedEvent);
 271         } else {
 272           ModelAPI_EventCreator::get()->sendUpdated(*anObjIter, kRedisplayEvent);
 273         }
 274       }
 275     }
 276     return;
 277   }
 278   if (theMessage->eventID() == kUpdatedEvent) {
 279     std::shared_ptr<ModelAPI_ObjectUpdatedMessage> aMsg =
 280         std::dynamic_pointer_cast<ModelAPI_ObjectUpdatedMessage>(theMessage);
 281     const std::set<ObjectPtr>& anObjs = aMsg->objects();
 282     std::set<ObjectPtr>::const_iterator anObjIter = anObjs.cbegin();
 283     bool aSomeModified = false; // check that features not changed: only redisplay is needed
 284     for(; anObjIter != anObjs.cend(); anObjIter++) {
 285       if (!(*anObjIter)->data()->isValid())
 286         continue;
 287 #ifdef DEB_UPDATE
 288       std::cout<<">>> in event updated "<<(*anObjIter)->groupName()<<
 289         " "<<(*anObjIter)->data()->name()<<std::endl;
 290 #endif
 291       if ((*anObjIter)->groupName() == ModelAPI_ResultParameter::group()) {
 292         myIsParamUpdated = true;
 293       }
 294       // on undo/redo, abort do not update persisten features
 295       FeaturePtr anUpdated = std::dynamic_pointer_cast<ModelAPI_Feature>(*anObjIter);
 296       if (anUpdated.get()) {
 297         if (addModified(anUpdated, FeaturePtr()))
 298           aSomeModified = true;
 299       } else {
 300         // process the updated result as update of features that refers to this result
 301         const std::set<std::shared_ptr<ModelAPI_Attribute> >&
 302           aRefs = (*anObjIter)->data()->refsToMe();
 303         std::set<std::shared_ptr<ModelAPI_Attribute> >::const_iterator aRefIter = aRefs.cbegin();
 304         for(; aRefIter != aRefs.cend(); aRefIter++) {
 305           if (!(*aRefIter)->owner()->data()->isValid())
 306             continue;
 307           FeaturePtr anUpdated = std::dynamic_pointer_cast<ModelAPI_Feature>((*aRefIter)->owner());
 308           if (anUpdated.get()) {
 309             if (addModified(anUpdated, FeaturePtr()))
 310               aSomeModified = true;
 311           }
 312         }
 313       }
 314     }
 315     // this event is for solver update, not here, do not react immediately
 316     if (aSomeModified) {
 317         processFeatures();
 318     }
 319   } else if (theMessage->eventID() == kOpFinishEvent || theMessage->eventID() == kOpAbortEvent ||
 320       theMessage->eventID() == kOpStartEvent) {
 321     myIsPreviewBlocked = false;
 322
 323     if (theMessage->eventID() == kOpFinishEvent) {
 324       myIsFinish = true;
 325       // add features that wait for finish as modified
 326       std::map<std::shared_ptr<ModelAPI_Feature>, std::set<std::shared_ptr<ModelAPI_Feature> > >::
 327         iterator aFeature = myProcessOnFinish.begin();
 328       for(; aFeature != myProcessOnFinish.end(); aFeature++) {
 329         if (aFeature->first->data()->isValid()) {// there may be already removed while wait
 330           if (aFeature->second.empty()) {
 331             addModified(aFeature->first, FeaturePtr());
 332             continue;
 333           }
 334           std::set<std::shared_ptr<ModelAPI_Feature> >::iterator aReasons;
 335           for(aReasons = aFeature->second.begin(); aReasons != aFeature->second.end(); aReasons++) {
 336             addModified(aFeature->first, *aReasons);
 337           }
 338         }
 339       }
 340       myIsFinish = false;
 341     }
 342     // processed features must be only on finish, so clear anyway (to avoid reimport on load)
 343     myProcessOnFinish.clear();
 344
 345     // #2156: current must be sketch, left after the macro execution
 346     DocumentPtr anActiveDoc = ModelAPI_Session::get()->activeDocument();
 347     FeaturePtr aCurrent;
 348     if (anActiveDoc.get())
 349       aCurrent = anActiveDoc->currentFeature(false);
 350
 351     if (!(theMessage->eventID() == kOpStartEvent)) {
 352       processFeatures(false);
 353     }
 354
 355     if (anActiveDoc.get() && aCurrent.get() && aCurrent->data()->isValid()) {
 356       if (anActiveDoc->currentFeature(false) != aCurrent)
 357         anActiveDoc->setCurrentFeature(aCurrent, false); // #2156 make the current feature back
 358     }
 359
 360
 361     // remove all macros before clearing all created
 362     std::set<FeaturePtr>::iterator anUpdatedIter = myWaitForFinish.begin();
 363     while(anUpdatedIter != myWaitForFinish.end()) {
 364       FeaturePtr aFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(*anUpdatedIter);
 365       if (aFeature.get()) {
 366         // remove macro on finish
 367         if (aFeature->isMacro()) {
 368           aFeature->document()->removeFeature(aFeature);
 369           myWaitForFinish.erase(aFeature);
 370         }
 371         // to avoid the map update problems on "remove"
 372         if (myWaitForFinish.find(aFeature) == myWaitForFinish.end()) {
 373           anUpdatedIter = myWaitForFinish.begin();
 374         } else {
 375           anUpdatedIter++;
 376         }
 377       } else {
 378         anUpdatedIter++;
 379       }
 380     }
 381     // the redisplay signal should be flushed in order
 382     // to erase the feature presentation in the viewer
 383     // if should be done after removeFeature() of document,
 384     // by this reason, upper processFeatures() do not perform this flush
 385     Events_Loop::loop()->flush(kRedisplayEvent);
 386
 387     // in the end of transaction everything is updated, so clear the old objects
 388     myIsParamUpdated = false;
 389     myWaitForFinish.clear();
 390   } else if (theMessage->eventID() == kReorderEvent) {
 391     std::shared_ptr<ModelAPI_OrderUpdatedMessage> aMsg =
 392       std::dynamic_pointer_cast<ModelAPI_OrderUpdatedMessage>(theMessage);
 393     if (aMsg->reordered().get())
 394       addModified(aMsg->reordered(), aMsg->reordered()); // to update all attributes
 395   }
 396 }
 397
 398 void Model_Update::processFeatures(const bool theFlushRedisplay)
 399 {
 400    // perform update of everything if it is not performed right now or any preview is blocked
 401   if (!myIsProcessed && !myIsPreviewBlocked) {
 402     myIsProcessed = true;
 403     #ifdef DEB_UPDATE
 404       std::cout<<"****** Start processing"<<std::endl;
 405     #endif
 406
 407     while(!myModified.empty()) {
 408       processFeature(myModified.begin()->first);
 409     }
 410     myIsProcessed = false;
 411
 412     // to update the object browser if something is updated/created during executions
 413     static Events_Loop* aLoop = Events_Loop::loop();
 414     static const Events_ID kCreatedEvent= aLoop->eventByName(EVENT_OBJECT_CREATED);
 415     aLoop->flush(kCreatedEvent);
 416     static const Events_ID kUpdatedEvent = aLoop->eventByName(EVENT_OBJECT_UPDATED);
 417     aLoop->flush(kUpdatedEvent);
 418
 419     // flush to update display
 420     if (theFlushRedisplay) {
 421       static Events_ID EVENT_DISP = aLoop->eventByName(EVENT_OBJECT_TO_REDISPLAY);
 422       aLoop->flush(EVENT_DISP);
 423     }
 424     #ifdef DEB_UPDATE
 425       std::cout<<"****** End processing"<<std::endl;
 426     #endif
 427     myProcessed.clear();
 428   }
 429 }
 430
 431 // collects all the feautres this feature depends on: reasons
 432 static void allReasons(FeaturePtr theFeature, std::set<FeaturePtr>& theReasons) {
 433   std::list<std::pair<std::string, std::list<std::shared_ptr<ModelAPI_Object> > > > aDeps;
 434   theFeature->data()->referencesToObjects(aDeps);
 435   std::list<std::pair<std::string, std::list<std::shared_ptr<ModelAPI_Object> > > >::iterator
 436     anAttrsIter = aDeps.begin();
 437   for(; anAttrsIter != aDeps.end(); anAttrsIter++) {
 438     if (theFeature->attribute(anAttrsIter->first)->isArgument()) {
 439       std::list<std::shared_ptr<ModelAPI_Object> >::iterator aDepIter = anAttrsIter->second.begin();
 440       for(; aDepIter != anAttrsIter->second.end(); aDepIter++) {
 441         FeaturePtr aDepFeat = std::dynamic_pointer_cast<ModelAPI_Feature>(*aDepIter);
 442         if (!aDepFeat.get()) { // so, it depends on the result and process the feature owner of it
 443           ResultPtr aDepRes = std::dynamic_pointer_cast<ModelAPI_Result>(*aDepIter);
 444           if (aDepRes.get()) {
 445             aDepFeat = (*aDepIter)->document()->feature(aDepRes);
 446           }
 447         }
 448         if (aDepFeat.get() && aDepFeat->data()->isValid()) {
 449           theReasons.insert(aDepFeat);
 450         }
 451       }
 452     }
 453   }
 454   if (theFeature->getKind() == "Part") {
 455     // part is not depended on its subs directly, but subs must be iterated anyway
 456     CompositeFeaturePtr aPart = std::dynamic_pointer_cast<ModelAPI_CompositeFeature>(theFeature);
 457     int aNum = aPart->numberOfSubs();
 458     for(int a = 0; a < aNum; a++) {
 459       FeaturePtr aSub = aPart->subFeature(a);
 460       if (aSub.get() && aSub->data()->isValid()) {
 461         theReasons.insert(aSub);
 462       }
 463     }
 464   }
 465 }
 466
 467 bool Model_Update::processFeature(FeaturePtr theFeature)
 468 {
 469   static ModelAPI_ValidatorsFactory* aFactory = ModelAPI_Session::get()->validators();
 470
 471   if (!theFeature->data()->isValid()) { // deleted feature, just remove from all containers
 472     if (myModified.find(theFeature) != myModified.end())
 473       myModified.erase(theFeature);
 474     return false;
 475   }
 476
 477   if (theFeature->isPersistentResult()) {
 478     if (!std::dynamic_pointer_cast<Model_Document>((theFeature)->document())->executeFeatures())
 479       return false;
 480   }
 481
 482   if (myProcessed.find(theFeature) == myProcessed.end()) {
 483     myProcessed[theFeature] = 0;
 484   } else {
 485     int aCount = myProcessed[theFeature];
 486     if (aCount > 100) {
 487       // too many repetition of processing (in VS it may crash on 330 with stack overflow)
 488       Events_InfoMessage("Model_Update",
 489         "Feature '%1' is updated in infinitive loop").arg(theFeature->data()->name()).send();
 490       // to stop iteration
 491       myModified.clear();
 492       return false;
 493     }
 494     myProcessed[theFeature] = aCount + 1;
 495   }
 496
 497   // check this feature is not yet checked or processed
 498   bool aIsModified = myModified.find(theFeature) != myModified.end();
 499   if (!aIsModified && myIsFinish) { // get info about the modification for features without preview
 500     if (theFeature->data()->execState() == ModelAPI_StateMustBeUpdated) {
 501       aIsModified = true;
 502       std::set<std::shared_ptr<ModelAPI_Feature> > aNewSet;
 503       // contains itself, so, we don't know which was the reason and the reason is any
 504       aNewSet.insert(theFeature);
 505       myModified[theFeature] = aNewSet;
 506     }
 507   }
 508
 509 #ifdef DEB_UPDATE
 510     std::cout<<"* Process feature "<<theFeature->name()<<std::endl;
 511 #endif
 512
 513   // update the sketch plane before the sketch sub-elements are recomputed
 514   // (otherwise sketch will update plane, modify subs, after executed, but with old subs edges)
 515   if (aIsModified && theFeature->getKind() == "Sketch") {
 516 #ifdef DEB_UPDATE
 517     std::cout<<"****** Update sketch args "<<theFeature->name()<<std::endl;
 518 #endif
 519     AttributeSelectionPtr anExtSel = theFeature->selection("External");
 520     if (anExtSel.get()) {
 521       ResultPtr aContext = anExtSel->context();
 522       if (aContext.get() && aContext->document().get()) {
 523         FeaturePtr anExtBase = aContext->document()->feature(aContext);
 524         if (anExtBase.get()) {
 525           processFeature(anExtBase);
 526         }
 527       }
 528     }
 529     std::shared_ptr<GeomAPI_Shape> aShapeBefore = anExtSel->value();
 530     if (!aShapeBefore.get() && anExtSel->context()) aShapeBefore = anExtSel->context()->shape();
 531     updateArguments(theFeature);
 532     std::shared_ptr<GeomAPI_Shape> aShapeAfter = anExtSel->value();
 533     if (!aShapeAfter.get() && anExtSel->context()) aShapeAfter = anExtSel->context()->shape();
 534     // if selected plane is changed, try to re-take external references of all subs of the sketch
 535     if (aShapeBefore.get() && !aShapeBefore->isEqual(aShapeAfter)) {
 536       std::set<FeaturePtr> aWholeR;
 537       allReasons(theFeature, aWholeR);
 538       std::set<FeaturePtr>::iterator aRIter = aWholeR.begin();
 539       for(; aRIter != aWholeR.end(); aRIter++) {
 540         if ((*aRIter)->data()->selection("External"))
 541           (*aRIter)->attributeChanged("External");
 542       }
 543     }
 544   }
 545
 546   if (!aIsModified) { // no modification is needed
 547     return false;
 548   }
 549
 550   // evaluate parameter before the sub-elements update:
 551   // it updates dependencies on evaluation (#1085)
 552   if (theFeature->getKind() == "Parameter") {
 553     theFeature->execute();
 554   }
 555
 556   bool isReferencedInvalid = false;
 557   // check all features this feature depended on (recursive call of updateFeature)
 558   std::set<FeaturePtr>& aReasons = myModified[theFeature];
 559   bool allSubsUsed = aReasons.find(theFeature) != aReasons.end();
 560   if (allSubsUsed) {
 561     // add all subs in aReasons and temporary remove "theFeature" to avoid processing itself
 562     allReasons(theFeature, aReasons);
 563     aReasons.erase(theFeature);
 564   }
 565   // take reasons one by one (they may be added during the feature process
 566   // (circle by the radius of sketch)
 567   std::set<FeaturePtr> aProcessedReasons;
 568   while(!aReasons.empty()) {
 569     FeaturePtr aReason = *(aReasons.begin());
 570 #ifdef DEB_UPDATE
 571     //cout<<theFeature->name()<<" process next reason "<<aReason->name()<<endl;
 572 #endif
 573     if (aReason != theFeature && (aReason)->data()->isValid()) {
 574       if (processFeature(aReason))
 575         aIsModified = true;
 576       if (aReason->data()->execState() == ModelAPI_StateInvalidArgument)
 577         isReferencedInvalid = true;
 578     }
 579     // searching for the next not used reason
 580     aProcessedReasons.insert(aReason);
 581     aReasons.erase(aReason);
 582   }
 583   // restore the modified reasons: they will be used in the update of arguments
 584   if (allSubsUsed) { // restore theFeature in this set
 585     aProcessedReasons.insert(theFeature);
 586   }
 587   myModified[theFeature] = aProcessedReasons;
 588
 589   // do not execute the composite that contains the current
 590   bool isPostponedMain = false;
 591   CompositeFeaturePtr aCompos = std::dynamic_pointer_cast<ModelAPI_CompositeFeature>(theFeature);
 592   if (theFeature->getKind() == "ExtrusionSketch" && aCompos.get()) {
 593     CompositeFeaturePtr aCurrentOwner =
 594       ModelAPI_Tools::compositeOwner(theFeature->document()->currentFeature(false));
 595     isPostponedMain = aCurrentOwner.get() && aCompos->isSub(aCurrentOwner);
 596   }
 597
 598 #ifdef DEB_UPDATE
 599   std::cout<<"Update args "<<theFeature->name()<<std::endl;
 600 #endif
 601   // TestImport.py : after arguments are updated, theFeature may be removed
 602   if (!theFeature->data()->isValid())
 603     return false;
 604   // Update selection and parameters attributes first, before sub-features analysis (sketch plane).
 605   updateArguments(theFeature);
 606
 607   // add this feature to the processed right now to be able remove it from this list on
 608   // update signal during this feature execution
 609   myModified.erase(theFeature);
 610   if (myNotPersistentRefs.find(theFeature) != myNotPersistentRefs.end())
 611     myNotPersistentRefs.erase(theFeature);
 612   if (theFeature->data()->execState() == ModelAPI_StateMustBeUpdated)
 613     theFeature->data()->execState(ModelAPI_StateDone);
 614
 615   // this checking must be after the composite feature sub-elements processing:
 616   // composite feature status may depend on it's subelements
 617   if ((theFeature->data()->execState() == ModelAPI_StateInvalidArgument || isReferencedInvalid) &&
 618     theFeature->getKind() != "Part") {
 619       // don't disable Part because it will make disabled all the features
 620       // (performance and problems with the current feature)
 621   #ifdef DEB_UPDATE
 622     std::cout<<"Invalid args "<<theFeature->name()<<std::endl;
 623   #endif
 624     theFeature->eraseResults(false);
 625     redisplayWithResults(theFeature, ModelAPI_StateInvalidArgument); // result also must be updated
 626     return true; // so, feature is modified (results are erased)
 627   }
 628
 629   // execute feature if it must be updated
 630   ModelAPI_ExecState aState = theFeature->data()->execState();
 631   if (aFactory->validate(theFeature)) {
 632     if (!isPostponedMain) {
 633       executeFeature(theFeature);
 634     }
 635   } else {
 636     #ifdef DEB_UPDATE
 637       std::cout<<"Feature is not valid, erase results "<<theFeature->name()<<std::endl;
 638     #endif
 639     theFeature->eraseResults(false);
 640     redisplayWithResults(theFeature, ModelAPI_StateInvalidArgument); // result also must be updated
 641   }
 642   return true;
 643 }
 644
 645 void Model_Update::redisplayWithResults(
 646   FeaturePtr theFeature, const ModelAPI_ExecState theState, bool theUpdateState)
 647 {
 648   // make updated and redisplay all results
 649   static Events_ID EVENT_DISP = Events_Loop::loop()->eventByName(EVENT_OBJECT_TO_REDISPLAY);
 650
 651   std::list<ResultPtr> allResults;
 652   ModelAPI_Tools::allResults(theFeature, allResults);
 653   std::list<ResultPtr>::iterator aRIter = allResults.begin();
 654   for (; aRIter != allResults.cend(); aRIter++) {
 655     std::shared_ptr<ModelAPI_Result> aRes = *aRIter;
 656     if (!aRes->isDisabled()) {
 657       // update state only for enabled results
 658       // (Placement Result Part may make the original Part Result as invalid)
 659       if (theUpdateState)
 660         aRes->data()->execState(theState);
 661     }
 662     if (theFeature->data()->updateID() > aRes->data()->updateID()) {
 663       aRes->data()->setUpdateID(theFeature->data()->updateID());
 664     }
 665     ModelAPI_EventCreator::get()->sendUpdated(aRes, EVENT_DISP);
 666   }
 667   // to redisplay "presentable" feature (for ex. distance constraint)
 668   ModelAPI_EventCreator::get()->sendUpdated(theFeature, EVENT_DISP);
 669   if (theUpdateState)
 670     theFeature->data()->execState(theState);
 671 }
 672
 673 /// Updates the state by the referenced object: if something bad with it, set state for this one
 674 ModelAPI_ExecState stateByReference(ObjectPtr theTarget, const ModelAPI_ExecState theCurrent)
 675 {
 676   if (theTarget) {
 677     ModelAPI_ExecState aRefState = theTarget->data()->execState();
 678     if (aRefState == ModelAPI_StateMustBeUpdated) {
 679       if (theCurrent == ModelAPI_StateDone)
 680         return ModelAPI_StateMustBeUpdated;
 681     } else if (aRefState != ModelAPI_StateDone) {
 682       return ModelAPI_StateInvalidArgument;
 683     }
 684   }
 685   return theCurrent;
 686 }
 687
 688 void Model_Update::updateArguments(FeaturePtr theFeature) {
 689   // perform this method also for disabled features: to make "not done" state for
 690   // features referenced to the active and modified features
 691   static ModelAPI_ValidatorsFactory* aFactory = ModelAPI_Session::get()->validators();
 692
 693   ModelAPI_ExecState aState = theFeature->data()->execState();
 694   if (aState == ModelAPI_StateExecFailed) { // try again failed feature: issue 577
 695     aState = ModelAPI_StateMustBeUpdated;
 696   }
 697   if (aState == ModelAPI_StateInvalidArgument) // a chance to be corrected
 698     aState = ModelAPI_StateMustBeUpdated;
 699   // check the parameters state
 700   // Integer
 701   {
 702     std::list<AttributePtr> anAttrinbutes =
 703       theFeature->data()->attributes(ModelAPI_AttributeInteger::typeId());
 704     std::list<AttributePtr>::iterator anIter = anAttrinbutes.begin();
 705     for(; anIter != anAttrinbutes.end(); anIter++) {
 706       AttributeIntegerPtr anAttribute =
 707         std::dynamic_pointer_cast<ModelAPI_AttributeInteger>(*anIter);
 708       if (anAttribute.get() && !anAttribute->text().empty()) {
 709         if (myIsParamUpdated) {
 710           ModelAPI_AttributeEvalMessage::send(anAttribute, this);
 711         }
 712         if (anAttribute->expressionInvalid()) {
 713           aState = ModelAPI_StateInvalidArgument;
 714         }
 715       }
 716     }
 717   }
 718   // Double
 719   {
 720     std::list<AttributePtr> aDoubles =
 721       theFeature->data()->attributes(ModelAPI_AttributeDouble::typeId());
 722     std::list<AttributePtr>::iterator aDoubleIter = aDoubles.begin();
 723     for(; aDoubleIter != aDoubles.end(); aDoubleIter++) {
 724       AttributeDoublePtr aDouble =
 725         std::dynamic_pointer_cast<ModelAPI_AttributeDouble>(*aDoubleIter);
 726       if (aDouble.get() && !aDouble->text().empty()) {
 727         if (myIsParamUpdated) {
 728           ModelAPI_AttributeEvalMessage::send(aDouble, this);
 729         }
 730         if (aDouble->expressionInvalid()) {
 731           aState = ModelAPI_StateInvalidArgument;
 732         }
 733       }
 734     }
 735   }
 736   // Point
 737   {
 738     std::list<AttributePtr> anAttributes =
 739       theFeature->data()->attributes(GeomDataAPI_Point::typeId());
 740     std::list<AttributePtr>::iterator anIter = anAttributes.begin();
 741     for(; anIter != anAttributes.end(); anIter++) {
 742       AttributePointPtr aPointAttribute =
 743         std::dynamic_pointer_cast<GeomDataAPI_Point>(*anIter);
 744       if (aPointAttribute.get() && (!aPointAttribute->textX().empty() ||
 745           !aPointAttribute->textY().empty() || !aPointAttribute->textZ().empty())) {
 746         if (myIsParamUpdated) {
 747           ModelAPI_AttributeEvalMessage::send(aPointAttribute, this);
 748         }
 749         if ((!aPointAttribute->textX().empty() && aPointAttribute->expressionInvalid(0)) ||
 750           (!aPointAttribute->textY().empty() && aPointAttribute->expressionInvalid(1)) ||
 751           (!aPointAttribute->textZ().empty() && aPointAttribute->expressionInvalid(2)))
 752           aState = ModelAPI_StateInvalidArgument;
 753       }
 754     }
 755   }
 756   // Point2D
 757   {
 758     std::list<AttributePtr> anAttributes =
 759       theFeature->data()->attributes(GeomDataAPI_Point2D::typeId());
 760     std::list<AttributePtr>::iterator anIter = anAttributes.begin();
 761     for(; anIter != anAttributes.end(); anIter++) {
 762       AttributePoint2DPtr aPoint2DAttribute =
 763         std::dynamic_pointer_cast<GeomDataAPI_Point2D>(*anIter);
 764       if (aPoint2DAttribute.get()) {
 765         if (myIsParamUpdated && (!aPoint2DAttribute->textX().empty() ||
 766             !aPoint2DAttribute->textY().empty())) {
 767           ModelAPI_AttributeEvalMessage::send(aPoint2DAttribute, this);
 768         }
 769         if ((!aPoint2DAttribute->textX().empty() && aPoint2DAttribute->expressionInvalid(0)) ||
 770           (!aPoint2DAttribute->textY().empty() && aPoint2DAttribute->expressionInvalid(1)))
 771           aState = ModelAPI_StateInvalidArgument;
 772       }
 773     }
 774   }
 775   // update the selection attributes if any
 776   std::list<AttributePtr> aRefs =
 777     theFeature->data()->attributes(ModelAPI_AttributeSelection::typeId());
 778   std::list<AttributePtr>::iterator aRefsIter = aRefs.begin();
 779   for (; aRefsIter != aRefs.end(); aRefsIter++) {
 780     std::shared_ptr<ModelAPI_AttributeSelection> aSel =
 781       std::dynamic_pointer_cast<ModelAPI_AttributeSelection>(*aRefsIter);
 782     ObjectPtr aContext = aSel->context();
 783     // update argument only if the referenced object is ready to use
 784     if (aContext.get() && !aContext->isDisabled()) {
 785       if (isReason(theFeature, aContext)) {
 786         if (!aSel->update()) { // this must be done on execution since it may be long operation
 787           bool isObligatory = !aFactory->isNotObligatory(
 788             theFeature->getKind(), theFeature->data()->id(aSel)) &&
 789             aFactory->isCase(theFeature, theFeature->data()->id(aSel));
 790           if (isObligatory)
 791             aState = ModelAPI_StateInvalidArgument;
 792         }
 793       }
 794     } else if (aContext.get()) {
 795       // here it may be not obligatory, but if the reference is wrong, it should not be correct
 796       bool isObligatory = aFactory->isCase(theFeature, theFeature->data()->id(aSel));
 797       if (isObligatory)
 798         aState = ModelAPI_StateInvalidArgument;
 799     }
 800   }
 801   // update the selection list attributes if any
 802   aRefs = theFeature->data()->attributes(ModelAPI_AttributeSelectionList::typeId());
 803   for (aRefsIter = aRefs.begin(); aRefsIter != aRefs.end(); aRefsIter++) {
 804     std::shared_ptr<ModelAPI_AttributeSelectionList> aSel =
 805       std::dynamic_pointer_cast<ModelAPI_AttributeSelectionList>(*aRefsIter);
 806     for(int a = aSel->size() - 1; a >= 0; a--) {
 807       std::shared_ptr<ModelAPI_AttributeSelection> aSelAttr =
 808         std::dynamic_pointer_cast<ModelAPI_AttributeSelection>(aSel->value(a));
 809       if (aSelAttr) {
 810         ObjectPtr aContext = aSelAttr->context();
 811         // update argument only if the referenced object is ready to use
 812         if (aContext.get() && !aContext->isDisabled()) {
 813           if (isReason(theFeature, aContext)) {
 814             if (!aSelAttr->update()) {
 815               bool isObligatory = !aFactory->isNotObligatory(
 816                 theFeature->getKind(), theFeature->data()->id(aSel)) &&
 817                 aFactory->isCase(theFeature, theFeature->data()->id(aSel));
 818               if (isObligatory)
 819                 aState = ModelAPI_StateInvalidArgument;
 820             }
 821           }
 822         } else if (aContext.get()) {
 823           // here it may be not obligatory, but if the reference is wrong, it should not be correct
 824           bool isObligatory = aFactory->isCase(theFeature, theFeature->data()->id(aSel));
 825           if (isObligatory)
 826             aState = ModelAPI_StateInvalidArgument;
 827         }
 828       }
 829     }
 830   }
 831
 832   if (aState != ModelAPI_StateDone)
 833     theFeature->data()->execState(aState);
 834 }
 835
 836 bool Model_Update::isReason(std::shared_ptr<ModelAPI_Feature>& theFeature,
 837      std::shared_ptr<ModelAPI_Object> theReason)
 838 {
 839   std::map<std::shared_ptr<ModelAPI_Feature>, std::set<std::shared_ptr<ModelAPI_Feature> > >
 840     ::iterator aReasonsIt = myModified.find(theFeature);
 841   if (aReasonsIt != myModified.end()) {
 842     if (aReasonsIt->second.find(theFeature) != aReasonsIt->second.end())
 843       return true; // any is reason if it contains itself
 844     FeaturePtr aReasFeat = std::dynamic_pointer_cast<ModelAPI_Feature>(theReason);
 845     if (!aReasFeat.get()) { // try to get feature of this result
 846       ResultPtr aReasRes = std::dynamic_pointer_cast<ModelAPI_Result>(theReason);
 847       if (aReasRes.get())
 848         aReasFeat = theReason->document()->feature(aReasRes);
 849     }
 850     if (aReasonsIt->second.find(aReasFeat) != aReasonsIt->second.end())
 851       return true;
 852   }
 853   // another try: postponed modification by not-persistences
 854   std::map<std::shared_ptr<ModelAPI_Feature>, std::set<std::shared_ptr<ModelAPI_Feature> > >
 855     ::iterator aNotPersist = myNotPersistentRefs.find(theFeature);
 856   if (aNotPersist != myNotPersistentRefs.end()) {
 857     FeaturePtr aReasFeat = std::dynamic_pointer_cast<ModelAPI_Feature>(theReason);
 858     if (!aReasFeat.get()) { // try to get feature of this result
 859       ResultPtr aReasRes = std::dynamic_pointer_cast<ModelAPI_Result>(theReason);
 860       if (aReasRes.get())
 861         aReasFeat = theReason->document()->feature(aReasRes);
 862     }
 863     if (aNotPersist->second.find(aReasFeat) != aNotPersist->second.end())
 864       return true;
 865   }
 866
 867   // this case only for not-previewed items update state, nothing is changed in args for it
 868   return false;
 869 }
 870
 871 void Model_Update::executeFeature(FeaturePtr theFeature)
 872 {
 873 #ifdef DEB_UPDATE
 874   std::cout<<"Execute Feature "<<theFeature->name()<<std::endl;
 875 #endif
 876   // execute in try-catch to avoid internal problems of the feature
 877   ModelAPI_ExecState aState = ModelAPI_StateDone;
 878   theFeature->data()->execState(ModelAPI_StateDone);
 879   try {
 880     theFeature->execute();
 881     if (theFeature->data()->execState() != ModelAPI_StateDone) {
 882       aState = ModelAPI_StateExecFailed;
 883     } else {
 884       aState = ModelAPI_StateDone;
 885     }
 886   } catch(...) {
 887     aState = ModelAPI_StateExecFailed;
 888     Events_InfoMessage("Model_Update",
 889       "Feature %1 has failed during the execution").arg(theFeature->getKind()).send();
 890   }
 891   // The macro feature has to be deleted in any case even its execution is failed
 892   myWaitForFinish.insert(theFeature);
 893   if (aState != ModelAPI_StateDone) {
 894     theFeature->eraseResults(false);
 895   }
 896   theFeature->data()->setUpdateID(ModelAPI_Session::get()->transactionID());
 897   redisplayWithResults(theFeature, aState);
 898 }
 899
 900 void Model_Update::updateStability(void* theSender)
 901 {
 902   static ModelAPI_ValidatorsFactory* aFactory = ModelAPI_Session::get()->validators();
 903   if (theSender) {
 904     bool added = false; // object may be was crated
 905     ModelAPI_Object* aSender = static_cast<ModelAPI_Object*>(theSender);
 906     if (aSender && aSender->document()) {
 907       FeaturePtr aFeatureSender =
 908         std::dynamic_pointer_cast<ModelAPI_Feature>(aSender->data()->owner());
 909       if (aFeatureSender.get()) {
 910         Model_Objects* aDocObjects =
 911           std::dynamic_pointer_cast<Model_Document>(aSender->document())->objects();
 912         if (aDocObjects) {
 913           //aDocObjects->synchronizeBackRefs();
 914           // remove or add all concealment refs from this feature
 915           std::list<std::pair<std::string, std::list<ObjectPtr> > > aRefs;
 916           aSender->data()->referencesToObjects(aRefs);
 917           std::list<std::pair<std::string, std::list<ObjectPtr> > >::iterator
 918             aRefIt = aRefs.begin();
 919           for(; aRefIt != aRefs.end(); aRefIt++) {
 920             if (!aFactory->isConcealed(aFeatureSender->getKind(), aRefIt->first))
 921               // take into account only concealed references
 922               // (do not remove the sketch constraint and the edge on constraint edit)
 923               continue;
 924             std::list<ObjectPtr>& aRefFeaturesList = aRefIt->second;
 925             std::list<ObjectPtr>::iterator aReferenced = aRefFeaturesList.begin();
 926             for(; aReferenced != aRefFeaturesList.end(); aReferenced++) {
 927                // stability is only on results: feature to feature reference mean nested
 928               // features, that will remove nesting references
 929               if (aReferenced->get() && (*aReferenced)->data()->isValid() &&
 930                 (*aReferenced)->groupName() != ModelAPI_Feature::group()) {
 931                 std::shared_ptr<Model_Data> aData =
 932                   std::dynamic_pointer_cast<Model_Data>((*aReferenced)->data());
 933                 if (aFeatureSender->isStable()) {
 934                   aData->addBackReference(aFeatureSender, aRefIt->first);
 935                 } else {
 936                   aData->removeBackReference(aFeatureSender, aRefIt->first);
 937                   added = true; // remove of concealment may be caused creation of some result
 938                 }
 939               }
 940             }
 941           }
 942         }
 943       }
 944     }
 945     if (added) {
 946       static Events_Loop* aLoop = Events_Loop::loop();
 947       static Events_ID kEventCreated = aLoop->eventByName(EVENT_OBJECT_CREATED);
 948       aLoop->flush(kEventCreated);
 949     }
 950   }
 951 }
 952
 953 void Model_Update::updateSelection(const std::set<std::shared_ptr<ModelAPI_Object> >& theObjects)
 954 {
 955   std::set<std::shared_ptr<ModelAPI_Object> >::iterator anObj = theObjects.begin();
 956   for(; anObj != theObjects.end(); anObj++) {
 957     std::list<AttributePtr> aRefs =
 958       (*anObj)->data()->attributes(ModelAPI_AttributeSelection::typeId());
 959     std::list<AttributePtr>::iterator aRefsIter = aRefs.begin();
 960     for (; aRefsIter != aRefs.end(); aRefsIter++) {
 961       std::shared_ptr<Model_AttributeSelection> aSel =
 962         std::dynamic_pointer_cast<Model_AttributeSelection>(*aRefsIter);
 963       aSel->updateInHistory();
 964     }
 965     // update the selection list attributes if any
 966     aRefs = (*anObj)->data()->attributes(ModelAPI_AttributeSelectionList::typeId());
 967     for (aRefsIter = aRefs.begin(); aRefsIter != aRefs.end(); aRefsIter++) {
 968       std::shared_ptr<ModelAPI_AttributeSelectionList> aSel =
 969         std::dynamic_pointer_cast<ModelAPI_AttributeSelectionList>(*aRefsIter);
 970       for(int a = aSel->size() - 1; a >= 0; a--) {
 971         std::shared_ptr<Model_AttributeSelection> aSelAttr =
 972           std::dynamic_pointer_cast<Model_AttributeSelection>(aSel->value(a));
 973         if (aSelAttr.get())
 974           aSelAttr->updateInHistory();
 975       }
 976     }
 977   }
 978 }