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