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