src/Model/Model_Update.cpp

   1 // Copyright (C) 2014-2020  CEA/DEN, EDF R&D
   2 //
   3 // This library is free software; you can redistribute it and/or
   4 // modify it under the terms of the GNU Lesser General Public
   5 // License as published by the Free Software Foundation; either
   6 // version 2.1 of the License, or (at your option) any later version.
   7 //
   8 // This library is distributed in the hope that it will be useful,
   9 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  10 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  11 // Lesser General Public License for more details.
  12 //
  13 // You should have received a copy of the GNU Lesser General Public
  14 // License along with this library; if not, write to the Free Software
  15 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  16 //
  17 // See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
  18 //
  19
  20 #include <Model_Update.h>
  21 #include <Model_Document.h>
  22 #include <Model_Data.h>
  23 #include <Model_Objects.h>
  24 #include <ModelAPI_Feature.h>
  25 #include <ModelAPI_Data.h>
  26 #include <ModelAPI_Document.h>
  27 #include <ModelAPI_Events.h>
  28 #include <ModelAPI_AttributeReference.h>
  29 #include <ModelAPI_AttributeRefList.h>
  30 #include <ModelAPI_AttributeRefAttr.h>
  31 #include <ModelAPI_AttributeSelection.h>
  32 #include <ModelAPI_AttributeSelectionList.h>
  33 #include <ModelAPI_Result.h>
  34 #include <ModelAPI_ResultPart.h>
  35 #include <ModelAPI_Validator.h>
  36 #include <ModelAPI_CompositeFeature.h>
  37 #include <ModelAPI_Session.h>
  38 #include <ModelAPI_Tools.h>
  39 #include <ModelAPI_ResultBody.h>
  40 #include <ModelAPI_ResultPart.h>
  41 #include <ModelAPI_ResultConstruction.h>
  42 #include <GeomAPI_Shape.h>
  43 #include <GeomDataAPI_Point.h>
  44 #include <GeomDataAPI_Dir.h>
  45 #include <GeomDataAPI_Point2D.h>
  46 #include <Events_Loop.h>
  47 #include <Events_LongOp.h>
  48 #include <Events_InfoMessage.h>
  49 #include <Config_PropManager.h>
  50
  51 Model_Update MY_UPDATER_INSTANCE;  /// the only one instance initialized on load of the library
  52 //#define DEB_UPDATE
  53
  54 #ifdef DEB_UPDATE
  55 #include <Locale_Convert.h>
  56 #endif
  57
  58 Model_Update::Model_Update()
  59 {
  60   Events_Loop* aLoop = Events_Loop::loop();
  61   static const Events_ID kChangedEvent = aLoop->eventByName("PreferenceChanged");
  62   aLoop->registerListener(this, kChangedEvent);
  63   static const Events_ID kCreatedEvent = Events_Loop::loop()->eventByName(EVENT_OBJECT_CREATED);
  64   aLoop->registerListener(this, kCreatedEvent);
  65   static const Events_ID kUpdatedEvent = Events_Loop::loop()->eventByName(EVENT_OBJECT_UPDATED);
  66   aLoop->registerListener(this, kUpdatedEvent);
  67   static const Events_ID kOpFinishEvent = aLoop->eventByName("FinishOperation");
  68   aLoop->registerListener(this, kOpFinishEvent);
  69   static const Events_ID kOpAbortEvent = aLoop->eventByName("AbortOperation");
  70   aLoop->registerListener(this, kOpAbortEvent);
  71   static const Events_ID kOpStartEvent = aLoop->eventByName("StartOperation");
  72   aLoop->registerListener(this, kOpStartEvent);
  73   static const Events_ID kStabilityEvent = aLoop->eventByName(EVENT_STABILITY_CHANGED);
  74   aLoop->registerListener(this, kStabilityEvent);
  75   static const Events_ID kPreviewBlockedEvent = aLoop->eventByName(EVENT_PREVIEW_BLOCKED);
  76   aLoop->registerListener(this, kPreviewBlockedEvent);
  77   static const Events_ID kPreviewRequestedEvent = aLoop->eventByName(EVENT_PREVIEW_REQUESTED);
  78   aLoop->registerListener(this, kPreviewRequestedEvent);
  79   static const Events_ID kReorderEvent = aLoop->eventByName(EVENT_ORDER_UPDATED);
  80   aLoop->registerListener(this, kReorderEvent);
  81   static const Events_ID kUpdatedSel = aLoop->eventByName(EVENT_UPDATE_SELECTION);
  82   aLoop->registerListener(this, kUpdatedSel);
  83   static const Events_ID kAutoRecomp = aLoop->eventByName(EVENT_AUTOMATIC_RECOMPUTATION_ENABLE);
  84   aLoop->registerListener(this, kAutoRecomp);
  85
  86   //  Config_PropManager::findProp("Model update", "automatic_rebuild")->value() == "true";
  87   myIsParamUpdated = false;
  88   myIsFinish = false;
  89   myIsProcessed = false;
  90   myIsPreviewBlocked = false;
  91   myUpdateBlocked = false;
  92 }
  93
  94 bool Model_Update::addModified(FeaturePtr theFeature, FeaturePtr theReason) {
  95
  96   if (!theFeature->data()->isValid())
  97     return false; // delete an extrusion created on the sketch
  98
  99
 100   bool isNotExecuted = theFeature->isPersistentResult() &&
 101     !std::dynamic_pointer_cast<Model_Document>((theFeature)->document())->executeFeatures();
 102   if (isNotExecuted) {
 103     redisplayWithResults(theFeature, ModelAPI_StateNothing, false); // redisplay even not executed
 104     if (!theReason.get()) // no reason => no construction reason
 105       return false;
 106     if (myNotPersistentRefs.find(theFeature) == myNotPersistentRefs.end()) {
 107       myNotPersistentRefs[theFeature].insert(theReason);
 108     } else {
 109       std::set<std::shared_ptr<ModelAPI_Feature> > aNewSet;
 110       aNewSet.insert(theReason);
 111       myNotPersistentRefs[theFeature] = aNewSet;
 112     }
 113     return false;
 114   }
 115
 116   // update arguments for "apply button" state change
 117   if ((!theFeature->isPreviewNeeded() && !myIsFinish) || myIsPreviewBlocked) {
 118     if (theReason.get())
 119       myProcessOnFinish[theFeature].insert(theReason);
 120     else if (myProcessOnFinish.find(theFeature) == myProcessOnFinish.end())
 121       myProcessOnFinish[theFeature] = std::set<std::shared_ptr<ModelAPI_Feature> >();
 122 #ifdef DEB_UPDATE
 123       std::wcout<<L"*** Add process on finish "<<theFeature->name()<<std::endl;
 124 #endif
 125     // keeps the currently updated features to avoid infinitive cycling here: where feature on
 126     // "updateArguments" sends "updated" (in selection attribute) and goes here again
 127     static std::set<FeaturePtr> aCurrentlyUpdated;
 128     if (aCurrentlyUpdated.find(theFeature) == aCurrentlyUpdated.end()) {
 129       aCurrentlyUpdated.insert(theFeature);
 130       updateArguments(theFeature);
 131       aCurrentlyUpdated.erase(theFeature);
 132     }
 133     // make it without conditions otherwise the apply button may have a bad state
 134     theFeature->data()->execState(ModelAPI_StateDone);
 135     static ModelAPI_ValidatorsFactory* aFactory = ModelAPI_Session::get()->validators();
 136      // need to be validated to update the "Apply" state if not previewed
 137     aFactory->validate(theFeature);
 138
 139     // to redisplay split's arguments presentation, even result is not computed
 140     if (!theFeature->isPreviewNeeded()) {
 141       static Events_Loop* aLoop = Events_Loop::loop();
 142       static const Events_ID kRedisplayEvent = aLoop->eventByName(EVENT_OBJECT_TO_REDISPLAY);
 143       ModelAPI_EventCreator::get()->sendUpdated(theFeature, kRedisplayEvent);
 144       aLoop->flush(kRedisplayEvent);
 145     }
 146
 147     if (!myIsPreviewBlocked)
 148       return true;
 149   }
 150   if (myModified.find(theFeature) != myModified.end()) {
 151     if (theReason.get()) {
 152 #ifdef DEB_UPDATE
 153       //std::cout<<"*** Add already modified "
 154       //   <<theFeature->name()<<" reason "<<theReason->name()<<std::endl;
 155 #endif
 156       myModified[theFeature].insert(theReason);
 157     }
 158     return true;
 159   }
 160   // do not add the disabled, but possibly the sub-elements are not disabled
 161   bool aIsDisabled = theFeature->isDisabled();
 162   if (!aIsDisabled) {
 163     std::set<std::shared_ptr<ModelAPI_Feature> > aNewSet;
 164     if (theFeature->data()->execState() == ModelAPI_StateMustBeUpdated ||
 165         theFeature->data()->execState() == ModelAPI_StateInvalidArgument || // issue 1519
 166         theFeature->data()->execState() == ModelAPI_StateExecFailed) {
 167       // do not forget that in this case all were the reasons
 168       aNewSet.insert(theFeature);
 169     } else {
 170       if (theReason.get())
 171         aNewSet.insert(theReason);
 172     }
 173     myModified[theFeature] = aNewSet;
 174 #ifdef DEB_UPDATE
 175     if (theReason.get()) {
 176       //std::cout<<"*** Add modified "<<theFeature->name()
 177       //  <<" reason "<<theReason->name()<<std::endl;
 178     } else {
 179       //std::cout<<"*** Add modified "<<theFeature->name()<<std::endl;
 180     }
 181 #endif
 182   } else { // will be updated during the finish of the operation, or when it becomes enabled
 183     if (theFeature->data()->execState() == ModelAPI_StateDone ||
 184         theFeature->data()->execState() == ModelAPI_StateExecFailed) // fix issue 1819
 185       theFeature->data()->execState(ModelAPI_StateMustBeUpdated);
 186     else
 187       return true; // do not need iteration deeply if it is already marked as modified or so
 188 #ifdef DEB_UPDATE
 189     //std::cout<<"*** Set modified state "<<theFeature->name()<<std::endl;
 190 #endif
 191   }
 192   // clear processed and fill modified recursively
 193   const std::set<std::shared_ptr<ModelAPI_Attribute> >& aRefs = theFeature->data()->refsToMe();
 194   std::set<std::shared_ptr<ModelAPI_Attribute> >::const_iterator aRefIter = aRefs.cbegin();
 195   for(; aRefIter != aRefs.cend(); aRefIter++) {
 196     if ((*aRefIter)->isArgument()) {
 197       FeaturePtr aReferenced = std::dynamic_pointer_cast<ModelAPI_Feature>((*aRefIter)->owner());
 198       if (aReferenced.get()) {
 199         addModified(aReferenced, theFeature);
 200       }
 201     }
 202   }
 203   // process also results
 204   std::list<ResultPtr> allResults; // list of this feature and results
 205   ModelAPI_Tools::allResults(theFeature, allResults);
 206   std::list<ResultPtr>::iterator aRes = allResults.begin();
 207   for(; aRes != allResults.end(); aRes++) {
 208     const std::set<std::shared_ptr<ModelAPI_Attribute> >& aResRefs = (*aRes)->data()->refsToMe();
 209     std::set<std::shared_ptr<ModelAPI_Attribute> >::const_iterator aRIter = aResRefs.cbegin();
 210     for(; aRIter != aResRefs.cend(); aRIter++) {
 211       if ((*aRIter)->isArgument()) {
 212         FeaturePtr aReferenced = std::dynamic_pointer_cast<ModelAPI_Feature>((*aRIter)->owner());
 213         if (aReferenced.get()) {
 214           addModified(aReferenced, theFeature);
 215         }
 216       }
 217     }
 218   }
 219
 220   // also add part feature that contains this feature to the modified
 221   if (theFeature->document()->kind() != "PartSet") {
 222     FeaturePtr aPart = ModelAPI_Tools::findPartFeature(
 223       ModelAPI_Session::get()->moduleDocument(), theFeature->document());
 224     if (aPart.get())
 225       addModified(aPart, theFeature);
 226   }
 227   return true;
 228 }
 229
 230 void Model_Update::processEvent(const std::shared_ptr<Events_Message>& theMessage)
 231 {
 232   static Events_Loop* aLoop = Events_Loop::loop();
 233   //static ModelAPI_ValidatorsFactory* aFactory = ModelAPI_Session::get()->validators();
 234   static const Events_ID kCreatedEvent = aLoop->eventByName(EVENT_OBJECT_CREATED);
 235   static const Events_ID kUpdatedEvent = aLoop->eventByName(EVENT_OBJECT_UPDATED);
 236   static const Events_ID kOpFinishEvent = aLoop->eventByName("FinishOperation");
 237   static const Events_ID kOpAbortEvent = aLoop->eventByName("AbortOperation");
 238   static const Events_ID kOpStartEvent = aLoop->eventByName("StartOperation");
 239   static const Events_ID kStabilityEvent = aLoop->eventByName(EVENT_STABILITY_CHANGED);
 240   static const Events_ID kPreviewBlockedEvent = aLoop->eventByName(EVENT_PREVIEW_BLOCKED);
 241   static const Events_ID kPreviewRequestedEvent = aLoop->eventByName(EVENT_PREVIEW_REQUESTED);
 242   static const Events_ID kReorderEvent = aLoop->eventByName(EVENT_ORDER_UPDATED);
 243   static const Events_ID kRedisplayEvent = aLoop->eventByName(EVENT_OBJECT_TO_REDISPLAY);
 244   static const Events_ID kUpdatedSel = aLoop->eventByName(EVENT_UPDATE_SELECTION);
 245
 246 #ifdef DEB_UPDATE
 247   std::cout<<"****** Event "<<theMessage->eventID().eventText()<<std::endl;
 248 #endif
 249   // check the automatic update flag on any event
 250   bool aNewAutomaticState = ModelAPI_Session::get()->isAutoUpdateBlocked();
 251   if (myUpdateBlocked != aNewAutomaticState) {
 252     myUpdateBlocked = aNewAutomaticState;
 253     if (!myUpdateBlocked) { // process all modified features, even if preview is blocked
 254       bool aPreviewBlockedState = myIsPreviewBlocked; // to update the selected arguments
 255       myIsPreviewBlocked = false;
 256       // iterate everything and add features in state "MustBeUpdated" into modified
 257       std::list<std::shared_ptr<ModelAPI_Document> > allDocs =
 258         ModelAPI_Session::get()->allOpenedDocuments();
 259       std::list<std::shared_ptr<ModelAPI_Document> >::iterator aDoc = allDocs.begin();
 260       for(; aDoc != allDocs.end(); aDoc++) {
 261         std::list<std::shared_ptr<ModelAPI_Feature> > allFeats = (*aDoc)->allFeatures();
 262         std::list<std::shared_ptr<ModelAPI_Feature> >::iterator aFeat = allFeats.begin();
 263         for(; aFeat != allFeats.end(); aFeat++) {
 264           if ((*aFeat)->data()->isValid() &&
 265             (*aFeat)->data()->execState() == ModelAPI_StateMustBeUpdated) {
 266             addModified(*aFeat, FeaturePtr());
 267           }
 268         }
 269       }
 270       processFeatures();
 271       myIsPreviewBlocked = aPreviewBlockedState;
 272     }
 273   }
 274
 275   if (theMessage->eventID() == kStabilityEvent) {
 276     updateStability(theMessage->sender());
 277     return;
 278   }
 279   if (theMessage->eventID() == kPreviewBlockedEvent) {
 280     myIsPreviewBlocked = true;
 281     return;
 282   }
 283   if (theMessage->eventID() == kPreviewRequestedEvent) {
 284     if (myIsPreviewBlocked) {
 285       bool anUpdateState = myUpdateBlocked;
 286       myUpdateBlocked = false;
 287       myIsPreviewBlocked = false;
 288       processFeatures();
 289       myIsPreviewBlocked = true;
 290       myUpdateBlocked = anUpdateState;
 291     }
 292     return;
 293   }
 294   if (theMessage->eventID() == kUpdatedSel) {
 295     std::shared_ptr<ModelAPI_ObjectUpdatedMessage> aMsg =
 296         std::dynamic_pointer_cast<ModelAPI_ObjectUpdatedMessage>(theMessage);
 297     updateSelection(aMsg->objects());
 298   }
 299   // creation is added to "update" to avoid recomputation twice:
 300   // on create and immediately after on update
 301   if (theMessage->eventID() == kCreatedEvent) {
 302     std::shared_ptr<ModelAPI_ObjectUpdatedMessage> aMsg =
 303         std::dynamic_pointer_cast<ModelAPI_ObjectUpdatedMessage>(theMessage);
 304     const std::set<ObjectPtr>& anObjs = aMsg->objects();
 305     std::set<ObjectPtr>::const_iterator anObjIter = anObjs.cbegin();
 306     std::list<ObjectPtr> aFeatures, aResults;
 307     for(; anObjIter != anObjs.cend(); anObjIter++) {
 308       if (std::dynamic_pointer_cast<Model_Document>((*anObjIter)->document())->executeFeatures()) {
 309         if ((*anObjIter)->groupName() == ModelAPI_Feature::group()) {
 310           // results creation means enabling, not update
 311           aFeatures.push_back(*anObjIter);
 312         } else {
 313           aResults.push_back(*anObjIter);
 314           ResultPartPtr aPart = std::dynamic_pointer_cast<ModelAPI_ResultPart>(*anObjIter);
 315           if (aPart.get() && aPart->data().get() && aPart->data()->isValid()) {
 316             aPart->shape(); // to update the shape on creation of the result
 317           }
 318         }
 319       }
 320     }
 321     ModelAPI_EventCreator::get()->sendUpdated(aFeatures, kUpdatedEvent);
 322     ModelAPI_EventCreator::get()->sendUpdated(aResults, kRedisplayEvent);
 323     return;
 324   }
 325   if (theMessage->eventID() == kUpdatedEvent) {
 326     std::shared_ptr<ModelAPI_ObjectUpdatedMessage> aMsg =
 327         std::dynamic_pointer_cast<ModelAPI_ObjectUpdatedMessage>(theMessage);
 328     const std::set<ObjectPtr>& anObjs = aMsg->objects();
 329     std::set<ObjectPtr>::const_iterator anObjIter = anObjs.cbegin();
 330     bool aSomeModified = false; // check that features not changed: only redisplay is needed
 331     for(; anObjIter != anObjs.cend(); anObjIter++) {
 332       if (!(*anObjIter)->data()->isValid())
 333         continue;
 334 #ifdef DEB_UPDATE
 335       std::wcout<<L">>> in event updated "<<Locale::Convert::toWString((*anObjIter)->groupName())
 336                 <<L" "<<(*anObjIter)->data()->name()<<std::endl;
 337 #endif
 338       if ((*anObjIter)->groupName() == ModelAPI_ResultParameter::group()) {
 339         myIsParamUpdated = true;
 340       }
 341       // on undo/redo, abort do not update persistent features
 342       FeaturePtr anUpdated = std::dynamic_pointer_cast<ModelAPI_Feature>(*anObjIter);
 343       if (anUpdated.get()) {
 344         if (addModified(anUpdated, FeaturePtr()))
 345           aSomeModified = true;
 346         if (myUpdateBlocked) { // execute this feature anyway to show the current result
 347           /*if (!anUpdated->isStable() && anUpdated->results().size() && (
 348               anUpdated->firstResult()->groupName() == ModelAPI_ResultBody::group() ||
 349               anUpdated->firstResult()->groupName() == ModelAPI_ResultPart::group())) {
 350             if (aFactory->validate(anUpdated)) {
 351               executeFeature(anUpdated);
 352               redisplayWithResults(anUpdated, ModelAPI_StateNothing, false);
 353               static Events_ID EVENT_DISP = aLoop->eventByName(EVENT_OBJECT_TO_REDISPLAY);
 354               aLoop->flush(EVENT_DISP);
 355             }
 356           }*/
 357         }
 358       } else {
 359         // process the updated result as update of features that refers to this result
 360         const std::set<std::shared_ptr<ModelAPI_Attribute> >&
 361           aRefs = (*anObjIter)->data()->refsToMe();
 362         std::set<std::shared_ptr<ModelAPI_Attribute> >::const_iterator aRefIter = aRefs.cbegin();
 363         FeaturePtr aReason;
 364         ResultPtr aReasonResult = std::dynamic_pointer_cast<ModelAPI_Result>(*anObjIter);
 365         if (aReasonResult.get())
 366           aReason = (*anObjIter)->document()->feature(aReasonResult);
 367         for(; aRefIter != aRefs.cend(); aRefIter++) {
 368           if (!(*aRefIter)->owner()->data()->isValid())
 369             continue;
 370           anUpdated = std::dynamic_pointer_cast<ModelAPI_Feature>((*aRefIter)->owner());
 371           if (anUpdated.get()) {
 372             if (addModified(anUpdated, aReason))
 373               aSomeModified = true;
 374           }
 375         }
 376       }
 377     }
 378     // this event is for solver update, not here, do not react immediately
 379     if (aSomeModified) {
 380         processFeatures();
 381     }
 382   } else if (theMessage->eventID() == kOpFinishEvent || theMessage->eventID() == kOpAbortEvent ||
 383       theMessage->eventID() == kOpStartEvent) {
 384     myIsPreviewBlocked = false;
 385
 386     if (theMessage->eventID() == kOpFinishEvent) {// if update is blocked, skip
 387       myIsFinish = true;
 388       // add features that wait for finish as modified
 389       std::map<std::shared_ptr<ModelAPI_Feature>, std::set<std::shared_ptr<ModelAPI_Feature> > >::
 390         iterator aFeature = myProcessOnFinish.begin();
 391       for(; aFeature != myProcessOnFinish.end(); aFeature++) {
 392         if (aFeature->first->data()->isValid()) {// there may be already removed while wait
 393           if (aFeature->second.empty()) {
 394             addModified(aFeature->first, FeaturePtr());
 395             continue;
 396           }
 397           std::set<std::shared_ptr<ModelAPI_Feature> >::iterator aReasons;
 398           for(aReasons = aFeature->second.begin(); aReasons != aFeature->second.end(); aReasons++){
 399             addModified(aFeature->first, *aReasons);
 400           }
 401         }
 402       }
 403       myIsFinish = false;
 404     }
 405     // processed features must be only on finish, so clear anyway (to avoid re-import on load)
 406     myProcessOnFinish.clear();
 407
 408     // #2156: current must be sketch, left after the macro execution
 409     DocumentPtr anActiveDoc = ModelAPI_Session::get()->activeDocument();
 410     FeaturePtr aCurrent;
 411     if (anActiveDoc.get())
 412       aCurrent = anActiveDoc->currentFeature(false);
 413
 414     if (!(theMessage->eventID() == kOpStartEvent)) {
 415       processFeatures(false);
 416     }
 417
 418     if (anActiveDoc.get() && aCurrent.get() && aCurrent->data()->isValid()) {
 419       if (anActiveDoc->currentFeature(false) != aCurrent &&
 420           ModelAPI_Tools::compositeOwner(anActiveDoc->currentFeature(false)) == aCurrent)
 421         anActiveDoc->setCurrentFeature(aCurrent, false); // #2156 make the current feature back
 422     }
 423
 424     // remove all macros before clearing all created
 425     std::set<FeaturePtr>::iterator anUpdatedIter = myWaitForFinish.begin();
 426     while(anUpdatedIter != myWaitForFinish.end()) {
 427       FeaturePtr aFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(*anUpdatedIter);
 428       if (aFeature.get()) {
 429         // remove macro on finish
 430         if (aFeature->isMacro()) {
 431           aFeature->document()->removeFeature(aFeature);
 432           myWaitForFinish.erase(aFeature);
 433         }
 434         // to avoid the map update problems on "remove"
 435         if (myWaitForFinish.find(aFeature) == myWaitForFinish.end()) {
 436           anUpdatedIter = myWaitForFinish.begin();
 437         } else {
 438           anUpdatedIter++;
 439         }
 440       } else {
 441         anUpdatedIter++;
 442       }
 443     }
 444     // the redisplay signal should be flushed in order
 445     // to erase the feature presentation in the viewer
 446     // if should be done after removeFeature() of document,
 447     // by this reason, upper processFeatures() do not perform this flush
 448     Events_Loop::loop()->flush(kRedisplayEvent);
 449
 450     // in the end of transaction everything is updated, so clear the old objects
 451     //myIsParamUpdated = false; // to avoid problems in sprocket.py parameter update
 452     myWaitForFinish.clear();
 453   } else if (theMessage->eventID() == kReorderEvent) {
 454     std::shared_ptr<ModelAPI_OrderUpdatedMessage> aMsg =
 455       std::dynamic_pointer_cast<ModelAPI_OrderUpdatedMessage>(theMessage);
 456     if (aMsg->reordered().get())
 457       addModified(aMsg->reordered(), aMsg->reordered()); // to update all attributes
 458   }
 459 }
 460
 461 void Model_Update::processFeatures(const bool theFlushRedisplay)
 462 {
 463    // perform update of everything if it is not performed right now or any preview is blocked
 464   if (!myIsProcessed && !myIsPreviewBlocked) {
 465     myIsProcessed = true;
 466     #ifdef DEB_UPDATE
 467       std::cout<<"****** Start processing"<<std::endl;
 468     #endif
 469
 470     while(!myModified.empty()) {
 471       processFeature(myModified.begin()->first);
 472     }
 473     myIsProcessed = false;
 474
 475     // to update the object browser if something is updated/created during executions
 476     static Events_Loop* aLoop = Events_Loop::loop();
 477     static const Events_ID kCreatedEvent= aLoop->eventByName(EVENT_OBJECT_CREATED);
 478     aLoop->flush(kCreatedEvent);
 479     static const Events_ID kUpdatedEvent = aLoop->eventByName(EVENT_OBJECT_UPDATED);
 480     aLoop->flush(kUpdatedEvent);
 481
 482     // flush to update display
 483     if (theFlushRedisplay) {
 484       static Events_ID EVENT_DISP = aLoop->eventByName(EVENT_OBJECT_TO_REDISPLAY);
 485       aLoop->flush(EVENT_DISP);
 486     }
 487     #ifdef DEB_UPDATE
 488       std::cout<<"****** End processing"<<std::endl;
 489     #endif
 490     myProcessed.clear();
 491   }
 492 }
 493
 494 // collects all the features this feature depends on: reasons
 495 static void allReasons(FeaturePtr theFeature, std::set<FeaturePtr>& theReasons) {
 496   std::list<std::pair<std::string, std::list<std::shared_ptr<ModelAPI_Object> > > > aDeps;
 497   theFeature->data()->referencesToObjects(aDeps);
 498   std::list<std::pair<std::string, std::list<std::shared_ptr<ModelAPI_Object> > > >::iterator
 499     anAttrsIter = aDeps.begin();
 500   for(; anAttrsIter != aDeps.end(); anAttrsIter++) {
 501     if (theFeature->attribute(anAttrsIter->first)->isArgument()) {
 502       std::list<std::shared_ptr<ModelAPI_Object> >::iterator aDepIter = anAttrsIter->second.begin();
 503       for(; aDepIter != anAttrsIter->second.end(); aDepIter++) {
 504         FeaturePtr aDepFeat = std::dynamic_pointer_cast<ModelAPI_Feature>(*aDepIter);
 505         if (!aDepFeat.get()) { // so, it depends on the result and process the feature owner of it
 506           ResultPtr aDepRes = std::dynamic_pointer_cast<ModelAPI_Result>(*aDepIter);
 507           if (aDepRes.get()) {
 508             aDepFeat = (*aDepIter)->document()->feature(aDepRes);
 509           }
 510         }
 511         if (aDepFeat.get() && aDepFeat->data()->isValid()) {
 512           theReasons.insert(aDepFeat);
 513         }
 514       }
 515     }
 516   }
 517   if (theFeature->getKind() == "Part") {
 518     // part is not depended on its subs directly, but subs must be iterated anyway
 519     CompositeFeaturePtr aPart = std::dynamic_pointer_cast<ModelAPI_CompositeFeature>(theFeature);
 520     int aNum = aPart->numberOfSubs();
 521     for(int a = 0; a < aNum; a++) {
 522       FeaturePtr aSub = aPart->subFeature(a);
 523       if (aSub.get() && aSub->data()->isValid()) {
 524         theReasons.insert(aSub);
 525       }
 526     }
 527   }
 528 }
 529
 530 bool Model_Update::processFeature(FeaturePtr theFeature)
 531 {
 532   static ModelAPI_ValidatorsFactory* aFactory = ModelAPI_Session::get()->validators();
 533
 534   if (!theFeature->data()->isValid()) { // deleted feature, just remove from all containers
 535     if (myModified.find(theFeature) != myModified.end())
 536       myModified.erase(theFeature);
 537     return false;
 538   }
 539
 540   if (theFeature->isPersistentResult()) {
 541     if (!std::dynamic_pointer_cast<Model_Document>((theFeature)->document())->executeFeatures())
 542       return false;
 543   }
 544
 545   // check this feature is not yet checked or processed
 546   bool aIsModified = myModified.find(theFeature) != myModified.end();
 547   if (!aIsModified && myIsFinish) { // get info about the modification for features without preview
 548     if (theFeature->data()->execState() == ModelAPI_StateMustBeUpdated) {
 549       aIsModified = true;
 550       std::set<std::shared_ptr<ModelAPI_Feature> > aNewSet;
 551       // contains itself, so, we don't know which was the reason and the reason is any
 552       aNewSet.insert(theFeature);
 553       myModified[theFeature] = aNewSet;
 554     }
 555   }
 556
 557   if (myProcessed.find(theFeature) == myProcessed.end()) {
 558     myProcessed[theFeature] = 0;
 559   } else if (aIsModified) {
 560     int aCount = myProcessed[theFeature];
 561     if (aCount > 100) {
 562       // too many repetition of processing (in VS it may crash on 330 with stack overflow)
 563       Events_InfoMessage("Model_Update",
 564         "Feature '%1' is updated in infinitive loop").arg(theFeature->data()->name()).send();
 565       // to stop iteration
 566       myModified.clear();
 567       return false;
 568     }
 569     myProcessed[theFeature] = aCount + 1;
 570   }
 571
 572 #ifdef DEB_UPDATE
 573     std::wcout<<L"* Process feature "<<theFeature->name()<<std::endl;
 574 #endif
 575
 576   // update the sketch plane before the sketch sub-elements are recomputed
 577   // (otherwise sketch will update plane, modify subs, after executed, but with old subs edges)
 578     if (aIsModified && theFeature->getKind() == "Sketch") {
 579 #ifdef DEB_UPDATE
 580       std::wcout << L"****** Update sketch args " << theFeature->name() << std::endl;
 581 #endif
 582       AttributeSelectionPtr anExtSel = theFeature->selection("External");
 583       if (anExtSel.get()) {
 584         ResultPtr aContext = anExtSel->context();
 585         if (aContext.get() && aContext->document().get()) {
 586           FeaturePtr anExtBase = aContext->document()->feature(aContext);
 587           if (anExtBase.get()) {
 588             processFeature(anExtBase);
 589           }
 590           std::shared_ptr<GeomDataAPI_Point> anOrigin =
 591             std::dynamic_pointer_cast<GeomDataAPI_Point>(theFeature->attribute("Origin"));
 592           double anOX = anOrigin->x(), anOY = anOrigin->y(), anOZ = anOrigin->z();
 593           std::shared_ptr<GeomDataAPI_Dir> aDir =
 594             std::dynamic_pointer_cast<GeomDataAPI_Dir>(theFeature->attribute("DirX"));
 595           double aDX = aDir->x(), aDY = aDir->y(), aDZ = aDir->z();
 596           std::shared_ptr<GeomDataAPI_Dir> aNorm =
 597             std::dynamic_pointer_cast<GeomDataAPI_Dir>(theFeature->attribute("Norm"));
 598           double aNX = aNorm->x(), aNY = aNorm->y(), aNZ = aNorm->z();
 599           // update sketch plane
 600           updateArguments(theFeature);
 601           theFeature->attributeChanged("External"); // to recompute origin, direction and normal
 602           // check it is updated, so all must be changed
 603           if (anOrigin->x() != anOX || anOrigin->y() != anOY || anOrigin->z() != anOZ ||
 604               aDir->x() != aDX || aDir->y() != aDY || aDir->z() != aDZ ||
 605               aNorm->x() != aNX || aNorm->y() != aNY || aNorm->z() != aNZ)
 606           {
 607             std::set<FeaturePtr> aWholeR;
 608             allReasons(theFeature, aWholeR);
 609             std::set<FeaturePtr>::iterator aRIter = aWholeR.begin();
 610             for (; aRIter != aWholeR.end(); aRIter++) {
 611               if ((*aRIter)->data()->selection("External").get())
 612                 (*aRIter)->attributeChanged("External");
 613             }
 614           }
 615         }
 616       }
 617     }
 618
 619   if (!aIsModified) { // no modification is needed
 620     return false;
 621   }
 622
 623   // evaluate parameter before the sub-elements update:
 624   // it updates dependencies on evaluation (#1085)
 625   if (theFeature->getKind() == "Parameter") {
 626     theFeature->execute();
 627   }
 628
 629   bool isReferencedInvalid = false;
 630   // check all features this feature depended on (recursive call of updateFeature)
 631   std::set<FeaturePtr>& aReasons = myModified[theFeature];
 632   bool allSubsUsed = aReasons.find(theFeature) != aReasons.end();
 633   if (allSubsUsed) {
 634     // add all subs in aReasons and temporary remove "theFeature" to avoid processing itself
 635     allReasons(theFeature, aReasons);
 636     aReasons.erase(theFeature);
 637   }
 638   // take reasons one by one (they may be added during the feature process
 639   // (circle by the radius of sketch)
 640   std::set<FeaturePtr> aProcessedReasons;
 641   while(!aReasons.empty()) {
 642     FeaturePtr aReason = *(aReasons.begin());
 643 #ifdef DEB_UPDATE
 644     //cout<<theFeature->name()<<" process next reason "<<aReason->name()<<endl;
 645 #endif
 646     if (aReason != theFeature && (aReason)->data()->isValid()) {
 647       if (processFeature(aReason))
 648         aIsModified = true;
 649       // check validity of aReason once again because it may be removed by dependent feature
 650       // (e.g. by SketchPlugin_IntersectionPoint)
 651       if (!aReason->data()->isValid() ||
 652           aReason->data()->execState() == ModelAPI_StateInvalidArgument)
 653         isReferencedInvalid = true;
 654     }
 655     // searching for the next not used reason
 656     aProcessedReasons.insert(aReason);
 657     // check theFeature is still in the list of modified, because it may be removed sometimes
 658     // while updating SketchPlugin_Ellipse
 659     if (myModified.find(theFeature) != myModified.end())
 660       aReasons.erase(aReason);
 661     else
 662       break;
 663   }
 664   // restore the modified reasons: they will be used in the update of arguments
 665   if (allSubsUsed) { // restore theFeature in this set
 666     aProcessedReasons.insert(theFeature);
 667   }
 668   myModified[theFeature] = aProcessedReasons;
 669
 670   // do not execute the composite that contains the current
 671   bool isPostponedMain = false;
 672   CompositeFeaturePtr aCompos = std::dynamic_pointer_cast<ModelAPI_CompositeFeature>(theFeature);
 673   if (theFeature->getKind() == "ExtrusionSketch" && aCompos.get()) {
 674     CompositeFeaturePtr aCurrentOwner =
 675       ModelAPI_Tools::compositeOwner(theFeature->document()->currentFeature(false));
 676     isPostponedMain = aCurrentOwner.get() && aCompos->isSub(aCurrentOwner);
 677   } else if (theFeature->getKind() == "Sketch" &&
 678     std::dynamic_pointer_cast<Model_Document>((theFeature)->document())->executeFeatures()) {
 679     // send event that sketch is prepared to be recomputed
 680     static Events_ID anID = Events_Loop::eventByName("SketchPrepared");
 681     std::shared_ptr<Events_Message> aMsg(new Events_Message(anID, this));
 682     Events_Loop* aLoop = Events_Loop::loop();
 683     // in case it is finish operation, flush for the sketch other events (#2450)
 684     aLoop->flush(aLoop->eventByName(EVENT_OBJECT_UPDATED));
 685     aLoop->send(aMsg);
 686     // check that sub-elements of sketch are updated => sketch must be re-processed
 687     std::set<FeaturePtr> aWholeR;
 688     allReasons(theFeature, aWholeR);
 689     std::set<FeaturePtr>::iterator aRIter = aWholeR.begin();
 690     for(; aRIter != aWholeR.end(); aRIter++) {
 691       if (myModified.find(*aRIter) != myModified.end()) {
 692         processFeature(theFeature);
 693         return true;
 694       }
 695     }
 696   }
 697
 698 #ifdef DEB_UPDATE
 699   std::wcout<<L"Update args "<<theFeature->name()<<std::endl;
 700 #endif
 701   // TestImport.py : after arguments are updated, theFeature may be removed
 702   if (!theFeature->data()->isValid())
 703     return false;
 704   // Update selection and parameters attributes first, before sub-features analysis (sketch plane).
 705   updateArguments(theFeature);
 706
 707   // add this feature to the processed right now to be able remove it from this list on
 708   // update signal during this feature execution
 709   myModified.erase(theFeature);
 710   if (myNotPersistentRefs.find(theFeature) != myNotPersistentRefs.end())
 711     myNotPersistentRefs.erase(theFeature);
 712   if (theFeature->data()->execState() == ModelAPI_StateMustBeUpdated)
 713     theFeature->data()->execState(ModelAPI_StateDone);
 714
 715   // this checking must be after the composite feature sub-elements processing:
 716   // composite feature status may depend on it's sub-elements
 717   if ((theFeature->data()->execState() == ModelAPI_StateInvalidArgument || isReferencedInvalid) &&
 718     theFeature->getKind() != "Part") {
 719       // don't disable Part because it will make disabled all the features
 720       // (performance and problems with the current feature)
 721   #ifdef DEB_UPDATE
 722     std::wcout<<L"Invalid args "<<theFeature->name()<<std::endl;
 723   #endif
 724     theFeature->eraseResults(false);
 725     redisplayWithResults(theFeature, ModelAPI_StateInvalidArgument); // result also must be updated
 726     return true; // so, feature is modified (results are erased)
 727   }
 728
 729   // execute feature if it must be updated
 730   ModelAPI_ExecState aState = theFeature->data()->execState();
 731   if (aFactory->validate(theFeature)) {
 732     if (!isPostponedMain) {
 733       bool aDoExecute = true;
 734       if (myUpdateBlocked) {
 735         if (!theFeature->isStable()) {
 736           aDoExecute = true;
 737         } else if (theFeature->results().size()) { // execute only not persistent results features
 738           aDoExecute = !theFeature->isPersistentResult();
 739         } else {
 740           aDoExecute = aState != ModelAPI_StateInvalidArgument;
 741         }
 742       }
 743       if (aDoExecute) {
 744         executeFeature(theFeature);
 745       } else {
 746         // store information that this feature must be executed later
 747         theFeature->data()->execState(ModelAPI_StateMustBeUpdated);
 748       }
 749     }
 750   } else {
 751     #ifdef DEB_UPDATE
 752       std::wcout<<L"Feature is not valid, erase results "<<theFeature->name()<<std::endl;
 753     #endif
 754     theFeature->eraseResults(false);
 755     redisplayWithResults(theFeature, ModelAPI_StateInvalidArgument); // result also must be updated
 756   }
 757   return true;
 758 }
 759
 760 void Model_Update::redisplayWithResults(
 761   FeaturePtr theFeature, const ModelAPI_ExecState theState, bool theUpdateState)
 762 {
 763   // make updated and redisplay all results
 764   static Events_ID EVENT_DISP = Events_Loop::loop()->eventByName(EVENT_OBJECT_TO_REDISPLAY);
 765
 766   std::list<ResultPtr> allResults;
 767   ModelAPI_Tools::allResults(theFeature, allResults);
 768   std::list<ResultPtr>::iterator aRIter = allResults.begin();
 769   for (; aRIter != allResults.cend(); aRIter++) {
 770     std::shared_ptr<ModelAPI_Result> aRes = *aRIter;
 771     if (!aRes->isDisabled()) {
 772       // update state only for enabled results
 773       // (Placement Result Part may make the original Part Result as invalid)
 774       if (theUpdateState)
 775         aRes->data()->execState(theState);
 776     }
 777     if (theFeature->data()->updateID() > aRes->data()->updateID()) {
 778       aRes->data()->setUpdateID(theFeature->data()->updateID());
 779     }
 780     ModelAPI_EventCreator::get()->sendUpdated(aRes, EVENT_DISP);
 781   }
 782   // to redisplay "presentable" feature (for ex. distance constraint)
 783   ModelAPI_EventCreator::get()->sendUpdated(theFeature, EVENT_DISP);
 784   if (theUpdateState)
 785     theFeature->data()->execState(theState);
 786 }
 787
 788 /// Updates the state by the referenced object: if something bad with it, set state for this one
 789 ModelAPI_ExecState stateByReference(ObjectPtr theTarget, const ModelAPI_ExecState theCurrent)
 790 {
 791   if (theTarget) {
 792     ModelAPI_ExecState aRefState = theTarget->data()->execState();
 793     if (aRefState == ModelAPI_StateMustBeUpdated) {
 794       if (theCurrent == ModelAPI_StateDone)
 795         return ModelAPI_StateMustBeUpdated;
 796     } else if (aRefState != ModelAPI_StateDone) {
 797       return ModelAPI_StateInvalidArgument;
 798     }
 799   }
 800   return theCurrent;
 801 }
 802
 803 void Model_Update::updateArguments(FeaturePtr theFeature) {
 804   // perform this method also for disabled features: to make "not done" state for
 805   // features referenced to the active and modified features
 806   static ModelAPI_ValidatorsFactory* aFactory = ModelAPI_Session::get()->validators();
 807
 808   ModelAPI_ExecState aState = theFeature->data()->execState();
 809   if (aState == ModelAPI_StateExecFailed) { // try again failed feature: issue 577
 810     aState = ModelAPI_StateMustBeUpdated;
 811   }
 812   if (aState == ModelAPI_StateInvalidArgument) // a chance to be corrected
 813     aState = ModelAPI_StateMustBeUpdated;
 814   // check the parameters state
 815   // Integer
 816   {
 817     std::list<AttributePtr> anAttrinbutes =
 818       theFeature->data()->attributes(ModelAPI_AttributeInteger::typeId());
 819     std::list<AttributePtr>::iterator anIter = anAttrinbutes.begin();
 820     for(; anIter != anAttrinbutes.end(); anIter++) {
 821       AttributeIntegerPtr anAttribute =
 822         std::dynamic_pointer_cast<ModelAPI_AttributeInteger>(*anIter);
 823       if (anAttribute.get() && !anAttribute->text().empty()) {
 824         if (myIsParamUpdated) {
 825           ModelAPI_AttributeEvalMessage::send(anAttribute, this);
 826         }
 827         if (anAttribute->expressionInvalid()) {
 828           aState = ModelAPI_StateInvalidArgument;
 829         }
 830       }
 831     }
 832   }
 833   // Double
 834   {
 835     std::list<AttributePtr> aDoubles =
 836       theFeature->data()->attributes(ModelAPI_AttributeDouble::typeId());
 837     std::list<AttributePtr>::iterator aDoubleIter = aDoubles.begin();
 838     for(; aDoubleIter != aDoubles.end(); aDoubleIter++) {
 839       AttributeDoublePtr aDouble =
 840         std::dynamic_pointer_cast<ModelAPI_AttributeDouble>(*aDoubleIter);
 841       if (aDouble.get() && !aDouble->text().empty()) {
 842         if (myIsParamUpdated) {
 843           ModelAPI_AttributeEvalMessage::send(aDouble, this);
 844         }
 845         if (aDouble->expressionInvalid()) {
 846           aState = ModelAPI_StateInvalidArgument;
 847         }
 848       }
 849     }
 850   }
 851   // Point
 852   {
 853     std::list<AttributePtr> anAttributes =
 854       theFeature->data()->attributes(GeomDataAPI_Point::typeId());
 855     std::list<AttributePtr>::iterator anIter = anAttributes.begin();
 856     for(; anIter != anAttributes.end(); anIter++) {
 857       AttributePointPtr aPointAttribute =
 858         std::dynamic_pointer_cast<GeomDataAPI_Point>(*anIter);
 859       if (aPointAttribute.get() && (!aPointAttribute->textX().empty() ||
 860           !aPointAttribute->textY().empty() || !aPointAttribute->textZ().empty())) {
 861         if (myIsParamUpdated) {
 862           ModelAPI_AttributeEvalMessage::send(aPointAttribute, this);
 863         }
 864         if ((!aPointAttribute->textX().empty() && aPointAttribute->expressionInvalid(0)) ||
 865           (!aPointAttribute->textY().empty() && aPointAttribute->expressionInvalid(1)) ||
 866           (!aPointAttribute->textZ().empty() && aPointAttribute->expressionInvalid(2)))
 867           aState = ModelAPI_StateInvalidArgument;
 868       }
 869     }
 870   }
 871   // Point2D
 872   {
 873     std::list<AttributePtr> anAttributes =
 874       theFeature->data()->attributes(GeomDataAPI_Point2D::typeId());
 875     std::list<AttributePtr>::iterator anIter = anAttributes.begin();
 876     for(; anIter != anAttributes.end(); anIter++) {
 877       AttributePoint2DPtr aPoint2DAttribute =
 878         std::dynamic_pointer_cast<GeomDataAPI_Point2D>(*anIter);
 879       if (aPoint2DAttribute.get()) {
 880         if (myIsParamUpdated && (!aPoint2DAttribute->textX().empty() ||
 881             !aPoint2DAttribute->textY().empty())) {
 882           ModelAPI_AttributeEvalMessage::send(aPoint2DAttribute, this);
 883         }
 884         if ((!aPoint2DAttribute->textX().empty() && aPoint2DAttribute->expressionInvalid(0)) ||
 885           (!aPoint2DAttribute->textY().empty() && aPoint2DAttribute->expressionInvalid(1)))
 886           aState = ModelAPI_StateInvalidArgument;
 887       }
 888     }
 889   }
 890   // update the selection attributes if any
 891   std::list<AttributePtr> aRefs =
 892     theFeature->data()->attributes(ModelAPI_AttributeSelection::typeId());
 893   std::list<AttributePtr>::iterator aRefsIter = aRefs.begin();
 894   for (; aRefsIter != aRefs.end(); aRefsIter++) {
 895     std::shared_ptr<ModelAPI_AttributeSelection> aSel =
 896       std::dynamic_pointer_cast<ModelAPI_AttributeSelection>(*aRefsIter);
 897     ObjectPtr aContext = aSel->context();
 898     // update argument only if the referenced object is ready to use
 899     if (aContext.get() && !aContext->isDisabled()) {
 900       if (isReason(theFeature, aContext)) {
 901         if (!aSel->update()) { // this must be done on execution since it may be long operation
 902           bool isObligatory = !aFactory->isNotObligatory(
 903             theFeature->getKind(), theFeature->data()->id(aSel)) &&
 904             aFactory->isCase(theFeature, theFeature->data()->id(aSel));
 905           if (isObligatory)
 906             aState = ModelAPI_StateInvalidArgument;
 907         }
 908       }
 909     } else if (aContext.get()) {
 910       // here it may be not obligatory, but if the reference is wrong, it should not be correct
 911       bool isObligatory = aFactory->isCase(theFeature, theFeature->data()->id(aSel));
 912       if (isObligatory)
 913         aState = ModelAPI_StateInvalidArgument;
 914     } else if (theFeature->getKind() == "Sketch" && aSel->id() == "External" &&
 915                aSel->isInitialized()) {
 916       // #19703 : if sketch plane was selected, but after context disappears, it must become invalid
 917       aSel->update();
 918       if (aSel->isInvalid()) {
 919           aState = ModelAPI_StateInvalidArgument;
 920       }
 921     }
 922   }
 923   // update the selection list attributes if any
 924   aRefs = theFeature->data()->attributes(ModelAPI_AttributeSelectionList::typeId());
 925   for (aRefsIter = aRefs.begin(); aRefsIter != aRefs.end(); aRefsIter++) {
 926     std::shared_ptr<ModelAPI_AttributeSelectionList> aSel =
 927       std::dynamic_pointer_cast<ModelAPI_AttributeSelectionList>(*aRefsIter);
 928     // #19071 : avoid sending of update event in cycle
 929     bool aWasBlocked = theFeature->data()->blockSendAttributeUpdated(true);
 930     // list to keep the shared pointers while update is blocked (in messages raw poiters are used)
 931     std::list<AttributeSelectionPtr> anAttrList;
 932     for(int a = aSel->size() - 1; a >= 0; a--) {
 933       std::shared_ptr<ModelAPI_AttributeSelection> aSelAttr =
 934         std::dynamic_pointer_cast<ModelAPI_AttributeSelection>(aSel->value(a));
 935       if (aSelAttr) {
 936         ObjectPtr aContext = aSelAttr->context();
 937         // update argument only if the referenced object is ready to use
 938         if (aContext.get() && !aContext->isDisabled()) {
 939           if (isReason(theFeature, aContext)) {
 940             anAttrList.push_back(aSelAttr);
 941             if (!aSelAttr->update()) {
 942               bool isObligatory = !aFactory->isNotObligatory(
 943                 theFeature->getKind(), theFeature->data()->id(aSel)) &&
 944                 aFactory->isCase(theFeature, theFeature->data()->id(aSel));
 945               if (isObligatory)
 946                 aState = ModelAPI_StateInvalidArgument;
 947             }
 948           }
 949         } else if (aContext.get()) {
 950           // here it may be not obligatory, but if the reference is wrong, it should not be correct
 951           bool isObligatory = aFactory->isCase(theFeature, theFeature->data()->id(aSel));
 952           if (isObligatory)
 953             aState = ModelAPI_StateInvalidArgument;
 954         }
 955       }
 956     }
 957     if (!aWasBlocked)
 958       theFeature->data()->blockSendAttributeUpdated(false);
 959   }
 960
 961   if (aState != ModelAPI_StateDone)
 962     theFeature->data()->execState(aState);
 963 }
 964
 965 bool Model_Update::isReason(std::shared_ptr<ModelAPI_Feature>& theFeature,
 966      std::shared_ptr<ModelAPI_Object> theReason)
 967 {
 968   std::map<std::shared_ptr<ModelAPI_Feature>, std::set<std::shared_ptr<ModelAPI_Feature> > >
 969     ::iterator aReasonsIt = myModified.find(theFeature);
 970   if (aReasonsIt != myModified.end()) {
 971     if (aReasonsIt->second.find(theFeature) != aReasonsIt->second.end())
 972       return true; // any is reason if it contains itself
 973     FeaturePtr aReasFeat = std::dynamic_pointer_cast<ModelAPI_Feature>(theReason);
 974     if (!aReasFeat.get()) { // try to get feature of this result
 975       ResultPtr aReasRes = std::dynamic_pointer_cast<ModelAPI_Result>(theReason);
 976       if (aReasRes.get())
 977         aReasFeat = theReason->document()->feature(aReasRes);
 978     }
 979     if (aReasonsIt->second.find(aReasFeat) != aReasonsIt->second.end())
 980       return true;
 981   }
 982   // another try: postponed modification by not-persistences
 983   std::map<std::shared_ptr<ModelAPI_Feature>, std::set<std::shared_ptr<ModelAPI_Feature> > >
 984     ::iterator aNotPersist = myNotPersistentRefs.find(theFeature);
 985   if (aNotPersist != myNotPersistentRefs.end()) {
 986     FeaturePtr aReasFeat = std::dynamic_pointer_cast<ModelAPI_Feature>(theReason);
 987     if (!aReasFeat.get()) { // try to get feature of this result
 988       ResultPtr aReasRes = std::dynamic_pointer_cast<ModelAPI_Result>(theReason);
 989       if (aReasRes.get())
 990         aReasFeat = theReason->document()->feature(aReasRes);
 991     }
 992     if (aNotPersist->second.find(aReasFeat) != aNotPersist->second.end())
 993       return true;
 994   }
 995
 996   // this case only for not-previewed items update state, nothing is changed in args for it
 997   return false;
 998 }
 999
1000 void Model_Update::executeFeature(FeaturePtr theFeature)
1001 {
1002 #ifdef DEB_UPDATE
1003   std::wcout<<L"Execute Feature "<<theFeature->name()<<std::endl;
1004 #endif
1005   // execute in try-catch to avoid internal problems of the feature
1006   ModelAPI_ExecState aState = ModelAPI_StateDone;
1007   theFeature->data()->execState(ModelAPI_StateDone);
1008   try {
1009     theFeature->execute();
1010     if (theFeature->data()->execState() != ModelAPI_StateDone) {
1011       aState = ModelAPI_StateExecFailed;
1012     } else {
1013       aState = ModelAPI_StateDone;
1014     }
1015   } catch(...) {
1016     aState = ModelAPI_StateExecFailed;
1017     Events_InfoMessage("Model_Update",
1018       "Feature %1 has failed during the execution").arg(theFeature->getKind()).send();
1019   }
1020   // The macro feature has to be deleted in any case even its execution is failed
1021   myWaitForFinish.insert(theFeature);
1022   if (aState != ModelAPI_StateDone) {
1023     theFeature->eraseResults(false);
1024   }
1025   theFeature->data()->setUpdateID(ModelAPI_Session::get()->transactionID());
1026   redisplayWithResults(theFeature, aState);
1027 }
1028
1029 // it is called on GUI edit of feature start
1030 // LCOV_EXCL_START
1031 void Model_Update::updateStability(void* theSender)
1032 {
1033   static ModelAPI_ValidatorsFactory* aFactory = ModelAPI_Session::get()->validators();
1034   if (theSender) {
1035     bool added = false; // object may be was crated
1036     ModelAPI_Object* aSender = static_cast<ModelAPI_Object*>(theSender);
1037     if (aSender && aSender->document()) {
1038       FeaturePtr aFeatureSender =
1039         std::dynamic_pointer_cast<ModelAPI_Feature>(aSender->data()->owner());
1040       if (aFeatureSender.get()) {
1041         Model_Objects* aDocObjects =
1042           std::dynamic_pointer_cast<Model_Document>(aSender->document())->objects();
1043         if (aDocObjects) {
1044           //aDocObjects->synchronizeBackRefs();
1045           // remove or add all concealment refs from this feature
1046           std::list<std::pair<std::string, std::list<ObjectPtr> > > aRefs;
1047           aSender->data()->referencesToObjects(aRefs);
1048           std::list<std::pair<std::string, std::list<ObjectPtr> > >::iterator
1049             aRefIt = aRefs.begin();
1050           for(; aRefIt != aRefs.end(); aRefIt++) {
1051             if (!aFactory->isConcealed(aFeatureSender->getKind(), aRefIt->first))
1052               // take into account only concealed references
1053               // (do not remove the sketch constraint and the edge on constraint edit)
1054               continue;
1055             std::list<ObjectPtr>& aRefFeaturesList = aRefIt->second;
1056             std::list<ObjectPtr>::iterator aReferenced = aRefFeaturesList.begin();
1057             for(; aReferenced != aRefFeaturesList.end(); aReferenced++) {
1058                // stability is only on results: feature to feature reference mean nested
1059               // features, that will remove nesting references
1060               if (aReferenced->get() && (*aReferenced)->data()->isValid() &&
1061                 (*aReferenced)->groupName() != ModelAPI_Feature::group()) {
1062                 std::shared_ptr<Model_Data> aData =
1063                   std::dynamic_pointer_cast<Model_Data>((*aReferenced)->data());
1064                 if (aFeatureSender->isStable()) {
1065                   aData->addBackReference(aFeatureSender, aRefIt->first);
1066                 } else {
1067                   aData->removeBackReference(aFeatureSender, aRefIt->first);
1068                   added = true; // remove of concealment may be caused creation of some result
1069                 }
1070               }
1071             }
1072           }
1073         }
1074       }
1075     }
1076     if (added) {
1077       static Events_Loop* aLoop = Events_Loop::loop();
1078       static Events_ID kEventCreated = aLoop->eventByName(EVENT_OBJECT_CREATED);
1079       aLoop->flush(kEventCreated);
1080     }
1081   }
1082 }
1083 // LCOV_EXCL_STOP
1084
1085 void Model_Update::updateSelection(const std::set<std::shared_ptr<ModelAPI_Object> >& theObjects)
1086 {
1087   std::set<std::shared_ptr<ModelAPI_Object> >::iterator anObj = theObjects.begin();
1088   for(; anObj != theObjects.end(); anObj++) {
1089     std::list<AttributePtr> aRefs =
1090       (*anObj)->data()->attributes(ModelAPI_AttributeSelection::typeId());
1091     std::list<AttributePtr>::iterator aRefsIter = aRefs.begin();
1092     for (; aRefsIter != aRefs.end(); aRefsIter++) {
1093       AttributeSelectionPtr aSel =
1094         std::dynamic_pointer_cast<ModelAPI_AttributeSelection>(*aRefsIter);
1095       bool aRemove = false;
1096       aSel->updateInHistory(aRemove);
1097     }
1098     // update the selection list attributes if any
1099     aRefs = (*anObj)->data()->attributes(ModelAPI_AttributeSelectionList::typeId());
1100     for (aRefsIter = aRefs.begin(); aRefsIter != aRefs.end(); aRefsIter++) {
1101       std::set<int> aRemoveSet;
1102       std::shared_ptr<ModelAPI_AttributeSelectionList> aSel =
1103         std::dynamic_pointer_cast<ModelAPI_AttributeSelectionList>(*aRefsIter);
1104       for(int a = aSel->size() - 1; a >= 0; a--) {
1105         AttributeSelectionPtr aSelAttr =
1106           std::dynamic_pointer_cast<ModelAPI_AttributeSelection>(aSel->value(a));
1107         if (aSelAttr.get()) {
1108           bool aRemove = false;
1109           aSelAttr->updateInHistory(aRemove);
1110           if (aRemove) {
1111             aRemoveSet.insert(a);
1112           }
1113         }
1114       }
1115       aSel->remove(aRemoveSet);
1116     }
1117   }
1118 }