src/Model/Model_Update.cpp

   1 // Copyright (C) 2014-20xx CEA/DEN, EDF R&D
   2
   3 // File:        Model_Update.cxx
   4 // Created:     25 Jun 2014
   5 // Author:      Mikhail PONIKAROV
   6
   7 #include <Model_Update.h>
   8 #include <Model_Document.h>
   9 #include <Model_Data.h>
  10 #include <Model_Objects.h>
  11 #include <ModelAPI_Feature.h>
  12 #include <ModelAPI_Data.h>
  13 #include <ModelAPI_Document.h>
  14 #include <ModelAPI_Events.h>
  15 #include <ModelAPI_AttributeReference.h>
  16 #include <ModelAPI_AttributeRefList.h>
  17 #include <ModelAPI_AttributeRefAttr.h>
  18 #include <ModelAPI_AttributeSelection.h>
  19 #include <ModelAPI_AttributeSelectionList.h>
  20 #include <ModelAPI_Result.h>
  21 #include <ModelAPI_ResultPart.h>
  22 #include <ModelAPI_Validator.h>
  23 #include <ModelAPI_CompositeFeature.h>
  24 #include <ModelAPI_Session.h>
  25 #include <ModelAPI_Tools.h>
  26 #include <GeomDataAPI_Point.h>
  27 #include <GeomDataAPI_Point2D.h>
  28 #include <Events_Loop.h>
  29 #include <Events_LongOp.h>
  30 #include <Events_Error.h>
  31 #include <Config_PropManager.h>
  32
  33 using namespace std;
  34
  35 Model_Update MY_UPDATER_INSTANCE;  /// the only one instance initialized on load of the library
  36 #define DEB_UPDATE
  37
  38 Model_Update::Model_Update()
  39 {
  40   Events_Loop* aLoop = Events_Loop::loop();
  41   static const Events_ID kChangedEvent = aLoop->eventByName("PreferenceChanged");
  42   aLoop->registerListener(this, kChangedEvent);
  43   static const Events_ID kRebuildEvent = aLoop->eventByName("Rebuild");
  44   aLoop->registerListener(this, kRebuildEvent);
  45   static const Events_ID kCreatedEvent = Events_Loop::loop()->eventByName(EVENT_OBJECT_CREATED);
  46   aLoop->registerListener(this, kCreatedEvent);
  47   static const Events_ID kUpdatedEvent = Events_Loop::loop()->eventByName(EVENT_OBJECT_UPDATED);
  48   aLoop->registerListener(this, kUpdatedEvent);
  49   static const Events_ID kMovedEvent = Events_Loop::loop()->eventByName(EVENT_OBJECT_MOVED);
  50   aLoop->registerListener(this, kMovedEvent);
  51   static const Events_ID kOpFinishEvent = aLoop->eventByName("FinishOperation");
  52   aLoop->registerListener(this, kOpFinishEvent);
  53   static const Events_ID kOpAbortEvent = aLoop->eventByName("AbortOperation");
  54   aLoop->registerListener(this, kOpAbortEvent);
  55   static const Events_ID kOpStartEvent = aLoop->eventByName("StartOperation");
  56   aLoop->registerListener(this, kOpStartEvent);
  57
  58   Config_PropManager::registerProp("Model update", "automatic_rebuild", "Rebuild immediately",
  59                                    Config_Prop::Boolean, "false");
  60   myIsAutomatic =
  61     Config_PropManager::findProp("Model update", "automatic_rebuild")->value() == "true";
  62   myIsParamUpdated = false;
  63   myIsFinish = false;
  64 }
  65
  66 void Model_Update::processEvent(const std::shared_ptr<Events_Message>& theMessage)
  67 {
  68   static Events_Loop* aLoop = Events_Loop::loop();
  69   static const Events_ID kChangedEvent = aLoop->eventByName("PreferenceChanged");
  70   static const Events_ID kRebuildEvent = aLoop->eventByName("Rebuild");
  71   static const Events_ID kCreatedEvent = aLoop->eventByName(EVENT_OBJECT_CREATED);
  72   static const Events_ID kUpdatedEvent = aLoop->eventByName(EVENT_OBJECT_UPDATED);
  73   static const Events_ID kMovedEvent = Events_Loop::loop()->eventByName(EVENT_OBJECT_MOVED);
  74   static const Events_ID kOpFinishEvent = aLoop->eventByName("FinishOperation");
  75   static const Events_ID kOpAbortEvent = aLoop->eventByName("AbortOperation");
  76   static const Events_ID kOpStartEvent = aLoop->eventByName("StartOperation");
  77   if (theMessage->eventID() == kChangedEvent) { // automatic and manual rebuild flag is changed
  78     bool aPropVal =
  79       Config_PropManager::findProp("Model update", "automatic_rebuild")->value() == "true";
  80     if (aPropVal != myIsAutomatic) { // something is changed
  81       myIsAutomatic = aPropVal;
  82       if (myIsAutomatic) // higher level of automatization => to rebuild
  83         processOperation(false);
  84     }
  85   } else if (theMessage->eventID() == kRebuildEvent) { // the rebuild command
  86     processOperation(true);
  87   } else if (theMessage->eventID() == kCreatedEvent || theMessage->eventID() == kUpdatedEvent ||
  88              theMessage->eventID() == kMovedEvent) {
  89     std::shared_ptr<ModelAPI_ObjectUpdatedMessage> aMsg =
  90         std::dynamic_pointer_cast<ModelAPI_ObjectUpdatedMessage>(theMessage);
  91     const std::set<ObjectPtr>& anObjs = aMsg->objects();
  92     std::set<ObjectPtr>::const_iterator anObjIter = anObjs.cbegin();
  93     bool isOnlyResults = true; // check that only results were changed: only redisplay is needed
  94     for(; anObjIter != anObjs.cend(); anObjIter++) {
  95       if (!std::dynamic_pointer_cast<ModelAPI_Result>(*anObjIter).get()) {
  96         isOnlyResults = false;
  97       }
  98       if ((*anObjIter)->groupName() == ModelAPI_ResultParameter::group()) {
  99         myIsParamUpdated = true;
 100       }
 101       // created objects are always must be up to date (python box feature)
 102       // and updated not in internal uptation chain
 103       myJustUpdated.insert(*anObjIter);
 104
 105       // something is updated during the execution: re-execute it (sketch update by parameters)
 106       if (myIsExecuted) {
 107         FeaturePtr anUpdated = std::dynamic_pointer_cast<ModelAPI_Feature>(*anObjIter);
 108         if (anUpdated.get() &&  anUpdated->data()->isValid() &&
 109             myProcessed.find(anUpdated) != myProcessed.end()) {
 110             if (anUpdated->isPreviewNeeded() || myIsFinish) {
 111               ModelAPI_ExecState aState = anUpdated->data()->execState();
 112               static ModelAPI_ValidatorsFactory* aFactory = ModelAPI_Session::get()->validators();
 113               if (aFactory->validate(anUpdated)) {
 114                 #ifdef DEB_UPDATE
 115                   std::cout<<"Execute immideately "<<anUpdated->name()<<std::endl;
 116                 #endif
 117                 executeFeature(anUpdated);
 118               } else {
 119                 anUpdated->eraseResults();
 120                 redisplayWithResults(anUpdated, ModelAPI_StateInvalidArgument); // result also must be updated
 121               }
 122             }
 123         }
 124       }
 125       #ifdef DEB_UPDATE
 126       if ((*anObjIter)->data() && (*anObjIter)->data()->isValid()) {
 127         std::cout<<"Add updated "<<(*anObjIter)->groupName()<<" "
 128           <<(*anObjIter)->data()->name()<<std::endl;
 129       }
 130       #endif
 131     }
 132     // this event is for solver update, not here, do not react immediately
 133     if (!isOnlyResults && !(theMessage->eventID() == kMovedEvent))
 134       processOperation(false);
 135   } else if (theMessage->eventID() == kOpFinishEvent || theMessage->eventID() == kOpAbortEvent ||
 136       theMessage->eventID() == kOpStartEvent) {
 137
 138     if (!(theMessage->eventID() == kOpStartEvent)) {
 139       myIsFinish = true;
 140       processOperation(true, theMessage->eventID() == kOpFinishEvent);
 141       myIsFinish = false;
 142     }
 143     // remove all macros before clearing all created
 144     std::set<ObjectPtr>::iterator anUpdatedIter = myWaitForFinish.begin();
 145     while(anUpdatedIter != myWaitForFinish.end()) {
 146       FeaturePtr aFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(*anUpdatedIter);
 147       if (aFeature.get()) {
 148         // remove macro on finish
 149         if (aFeature->isMacro()) {
 150           aFeature->document()->removeFeature(aFeature);
 151           myWaitForFinish.erase(aFeature);
 152         }
 153         // to avoid the map update problems on "remove"
 154         if (myWaitForFinish.find(aFeature) == myWaitForFinish.end()) {
 155           anUpdatedIter = myWaitForFinish.begin();
 156         } else {
 157           anUpdatedIter++;
 158         }
 159       } else {
 160         anUpdatedIter++;
 161       }
 162     }
 163     // in the end of transaction everything is updated, so clear the old objects (the only one
 164     // place where results are cleared)
 165     myIsParamUpdated = false;
 166     myJustUpdated.clear();
 167     myWaitForFinish.clear();
 168   }
 169 }
 170
 171 void Model_Update::processOperation(const bool theTotalUpdate, const bool theFinish)
 172 {
 173   if (theFinish) {
 174     // the hardcode (DBC asked): hide the sketch referenced by extrusion on apply
 175     std::set<std::shared_ptr<ModelAPI_Object> >::iterator aFIter;
 176     for(aFIter = myWaitForFinish.begin(); aFIter != myWaitForFinish.end(); aFIter++)
 177     {
 178       FeaturePtr aF = std::dynamic_pointer_cast<ModelAPI_Feature>(*aFIter);
 179       if (aF && aF->data()->isValid() && aF->getKind() == "Extrusion") {
 180         AttributeSelectionListPtr aBase = aF->selectionList("base");
 181         if (aBase.get()) {
 182           for(int a = aBase->size() - 1; a >= 0; a--) {
 183             ResultPtr aSketchRes = aBase->value(a)->context();
 184             if (aSketchRes) {
 185               aSketchRes->setDisplayed(false);
 186             }
 187           }
 188         }
 189       }
 190     }
 191   }
 192   // perform update of everything if needed
 193   if (!myIsExecuted) {
 194     #ifdef DEB_UPDATE
 195       std::cout<<"****** Start processing"<<std::endl;
 196     #endif
 197     myIsExecuted = true;
 198
 199     bool isAutomaticChanged = false;
 200
 201     if (theTotalUpdate && !myIsAutomatic) { // Apply button now works as "Rebuild"
 202       isAutomaticChanged = true;
 203       myIsAutomatic = true;
 204     }
 205
 206     // iterate all features in the root document to update each
 207     DocumentPtr aRootDoc = ModelAPI_Session::get()->moduleDocument();
 208     Model_Objects* anObjs = std::dynamic_pointer_cast<Model_Document>(aRootDoc)->objects();
 209     if (!anObjs) return;
 210     // two cycles: parameters are first to process
 211     FeaturePtr aFeatureIter = anObjs->firstFeature();
 212     myProcessed.clear(); // to avoid processing twice
 213     for (; aFeatureIter.get(); aFeatureIter = anObjs->nextFeature(aFeatureIter)) {
 214       if (aFeatureIter->getKind() == "Parameter")
 215         updateFeature(aFeatureIter);
 216     }
 217     aFeatureIter = anObjs->firstFeature();
 218     for (; aFeatureIter.get(); aFeatureIter = anObjs->nextFeature(aFeatureIter)) {
 219       if (aFeatureIter->getKind() != "Parameter")
 220         updateFeature(aFeatureIter);
 221     }
 222
 223     if (isAutomaticChanged) myIsAutomatic = false;
 224     myIsExecuted = false;
 225
 226     // flush to update display
 227     static Events_Loop* aLoop = Events_Loop::loop();
 228     static Events_ID EVENT_DISP = aLoop->eventByName(EVENT_OBJECT_TO_REDISPLAY);
 229     aLoop->flush(EVENT_DISP);
 230     #ifdef DEB_UPDATE
 231       std::cout<<"****** End processing"<<std::endl;
 232     #endif
 233   }
 234 }
 235
 236 void Model_Update::updateFeature(FeaturePtr theFeature)
 237 {
 238   // check all features this feature depended on (recursive call of updateFeature)
 239   static ModelAPI_ValidatorsFactory* aFactory = ModelAPI_Session::get()->validators();
 240
 241   if (myProcessed.find(theFeature) != myProcessed.end())
 242     return;
 243   myProcessed.insert(theFeature);
 244   if (theFeature->isDisabled())
 245     return;
 246
 247   #ifdef DEB_UPDATE
 248     std::cout<<"Update Feature "<<theFeature->name()<<std::endl;
 249   #endif
 250   CompositeFeaturePtr aCompos = std::dynamic_pointer_cast<ModelAPI_CompositeFeature>(theFeature);
 251   // If automatice update is not needed and feature attributes were not updated right now,
 252   // do not execute it and do not update arguments.
 253   if (!myIsAutomatic && myJustUpdated.find(theFeature) == myJustUpdated.end() && !aCompos.get()) {
 254     // execute will be performed later, but some features may have not-result
 255     // presentations, so call update for them (like coincidence in the sketcher)
 256     static Events_ID EVENT_DISP = Events_Loop::loop()->eventByName(EVENT_OBJECT_TO_REDISPLAY);
 257     ModelAPI_EventCreator::get()->sendUpdated(theFeature, EVENT_DISP);
 258     return;
 259   }
 260
 261   // Update selection and parameters attributes first, before sub-features analysis (sketch plane).
 262   updateArguments(theFeature);
 263
 264   // composite feature must be executed after sub-features execution
 265   if (aCompos) {
 266     // two cycles: parameters must be processed first
 267     for(int a = 0; a < aCompos->numberOfSubs(); a++) {
 268       FeaturePtr aSub = aCompos->subFeature(a);
 269       if (aSub->getKind() == "Parameter")
 270         updateFeature(aSub);
 271     }
 272     // number of subs can be changed in execution: like fillet
 273     for(int a = 0; a < aCompos->numberOfSubs(); a++) {
 274       FeaturePtr aSub = aCompos->subFeature(a);
 275       if (aSub->getKind() != "Parameter")
 276        updateFeature(aSub);
 277     }
 278     // reupdate arguments of composite feature: it may be changed during subs execution
 279     if (theFeature->data()->execState() != ModelAPI_StateMustBeUpdated)
 280       updateArguments(theFeature);
 281   }
 282   // this checking must be after the composite feature sub-elements processing:
 283   // composite feature status may depend on it's subelements
 284   if (theFeature->data()->execState() == ModelAPI_StateInvalidArgument) {
 285     theFeature->eraseResults();
 286     redisplayWithResults(theFeature, ModelAPI_StateInvalidArgument); // result also must be updated
 287     return;
 288   }
 289
 290   bool aJustUpdated = myJustUpdated.find(theFeature) != myJustUpdated.end();
 291
 292   if (myIsAutomatic && theFeature->data()->execState() == ModelAPI_StateMustBeUpdated)
 293     aJustUpdated = true;
 294
 295   // On abort, undo or redo execute is not needed: results in document are updated automatically
 296   // But redisplay is needed: results are updated, must be also updated in the viewer.
 297   if (aJustUpdated &&
 298       !std::dynamic_pointer_cast<Model_Document>(theFeature->document())->executeFeatures()) {
 299     if (!theFeature->isPersistentResult()) { // not persistent must be re-executed on abort, etc.
 300       ModelAPI_ExecState aState = theFeature->data()->execState();
 301       if (aFactory->validate(theFeature)) {
 302         executeFeature(theFeature);
 303       } else {
 304         theFeature->eraseResults();
 305         redisplayWithResults(theFeature, ModelAPI_StateInvalidArgument); // result also must be updated
 306       }
 307     } else {
 308       redisplayWithResults(theFeature, ModelAPI_StateNothing);
 309       if (theFeature->data()->execState() == ModelAPI_StateMustBeUpdated) { // it is done (in the tree)
 310         theFeature->data()->execState(ModelAPI_StateDone);
 311       }
 312     }
 313     return;
 314   }
 315
 316   // execute feature if it must be updated
 317   if (theFeature->isPreviewNeeded() || myIsFinish) {
 318     if (aJustUpdated) {
 319       ModelAPI_ExecState aState = theFeature->data()->execState();
 320       if (aFactory->validate(theFeature)) {
 321         #ifdef DEB_UPDATE
 322           std::cout<<"Execute Feature "<<theFeature->name()<<std::endl;
 323         #endif
 324         executeFeature(theFeature);
 325       } else {
 326         theFeature->eraseResults();
 327         redisplayWithResults(theFeature, ModelAPI_StateInvalidArgument); // result also must be updated
 328       }
 329     }
 330   } else { // preview is not needed => make state Done
 331     if (theFeature->data()->execState() == ModelAPI_StateMustBeUpdated) {
 332       theFeature->data()->execState(ModelAPI_StateDone);
 333       if (aJustUpdated) // store that it must be updated on finish
 334         myJustUpdated.insert(theFeature);
 335     }
 336   }
 337 }
 338
 339 void Model_Update::redisplayWithResults(FeaturePtr theFeature, const ModelAPI_ExecState theState)
 340 {
 341   // make updated and redisplay all results
 342   static Events_ID EVENT_DISP = Events_Loop::loop()->eventByName(EVENT_OBJECT_TO_REDISPLAY);
 343   const std::list<std::shared_ptr<ModelAPI_Result> >& aResults = theFeature->results();
 344   std::list<std::shared_ptr<ModelAPI_Result> >::const_iterator aRIter = aResults.begin();
 345   for (; aRIter != aResults.cend(); aRIter++) {
 346     std::shared_ptr<ModelAPI_Result> aRes = *aRIter;
 347     if (!aRes->isDisabled()) {// update state only for enabled results (Placement Result Part may make the original Part Result as invalid)
 348       aRes->data()->execState(theState);
 349       if (theState == ModelAPI_StateDone) // feature become "done", so execution changed results
 350         myJustUpdated.insert(aRes);
 351     }
 352     if (theFeature->data()->updateID() > aRes->data()->updateID()) {
 353       aRes->data()->setUpdateID(theFeature->data()->updateID());
 354     }
 355     ModelAPI_EventCreator::get()->sendUpdated(aRes, EVENT_DISP);
 356   }
 357   // to redisplay "presentable" feature (for ex. distance constraint)
 358   ModelAPI_EventCreator::get()->sendUpdated(theFeature, EVENT_DISP);
 359   theFeature->data()->execState(theState);
 360 }
 361
 362 /// Updates the state by the referenced object: if something bad with it, set state for this one
 363 ModelAPI_ExecState stateByReference(ObjectPtr theTarget, const ModelAPI_ExecState theCurrent)
 364 {
 365   if (theTarget) {
 366     ModelAPI_ExecState aRefState = theTarget->data()->execState();
 367     if (aRefState == ModelAPI_StateMustBeUpdated) {
 368       if (theCurrent == ModelAPI_StateDone)
 369         return ModelAPI_StateMustBeUpdated;
 370     } else if (aRefState != ModelAPI_StateDone) {
 371       return ModelAPI_StateInvalidArgument;
 372     }
 373   }
 374   return theCurrent;
 375 }
 376
 377 void Model_Update::updateArguments(FeaturePtr theFeature) {
 378   // perform this method also for disabled features: to make "not done" state for
 379   // features referenced to the active and modified features
 380
 381   static ModelAPI_ValidatorsFactory* aFactory = ModelAPI_Session::get()->validators();
 382
 383   ModelAPI_ExecState aState = theFeature->data()->execState();
 384   if (aState == ModelAPI_StateExecFailed) { // try again failed feature: issue 577
 385     aState = ModelAPI_StateMustBeUpdated;
 386   }
 387   if (aState == ModelAPI_StateInvalidArgument) // a chance to be corrected
 388     aState = ModelAPI_StateMustBeUpdated;
 389   // check the parameters state
 390   // Double
 391   std::list<AttributePtr> aDoubles =
 392     theFeature->data()->attributes(ModelAPI_AttributeDouble::typeId());
 393   std::list<AttributePtr>::iterator aDoubleIter = aDoubles.begin();
 394   for(; aDoubleIter != aDoubles.end(); aDoubleIter++) {
 395     AttributeDoublePtr aDouble =
 396       std::dynamic_pointer_cast<ModelAPI_AttributeDouble>(*aDoubleIter);
 397     if (aDouble.get() && !aDouble->text().empty()) {
 398       if (myIsParamUpdated) {
 399         ModelAPI_AttributeEvalMessage::send(aDouble, this);
 400       }
 401       if (aDouble->expressionInvalid()) {
 402         aState = ModelAPI_StateInvalidArgument;
 403       }
 404     }
 405   }
 406   // Point
 407   {
 408     std::list<AttributePtr> anAttributes =
 409       theFeature->data()->attributes(GeomDataAPI_Point::typeId());
 410     std::list<AttributePtr>::iterator anIter = anAttributes.begin();
 411     for(; anIter != anAttributes.end(); anIter++) {
 412       AttributePointPtr aPointAttribute =
 413         std::dynamic_pointer_cast<GeomDataAPI_Point>(*anIter);
 414       if (aPointAttribute.get()) {
 415         if (myIsParamUpdated) {
 416           ModelAPI_AttributeEvalMessage::send(aPointAttribute, this);
 417         }
 418         if ((!aPointAttribute->textX().empty() && aPointAttribute->expressionInvalid(0)) ||
 419           (!aPointAttribute->textY().empty() && aPointAttribute->expressionInvalid(1)) ||
 420           (!aPointAttribute->textZ().empty() && aPointAttribute->expressionInvalid(2)))
 421           aState = ModelAPI_StateInvalidArgument;
 422       }
 423     }
 424   }
 425   // Point2D
 426   {
 427     std::list<AttributePtr> anAttributes =
 428       theFeature->data()->attributes(GeomDataAPI_Point2D::typeId());
 429     std::list<AttributePtr>::iterator anIter = anAttributes.begin();
 430     for(; anIter != anAttributes.end(); anIter++) {
 431       AttributePoint2DPtr aPoint2DAttribute =
 432         std::dynamic_pointer_cast<GeomDataAPI_Point2D>(*anIter);
 433       if (aPoint2DAttribute.get()) {
 434         if (myIsParamUpdated) {
 435           ModelAPI_AttributeEvalMessage::send(aPoint2DAttribute, this);
 436         }
 437         if ((!aPoint2DAttribute->textX().empty() && aPoint2DAttribute->expressionInvalid(0)) ||
 438           (!aPoint2DAttribute->textY().empty() && aPoint2DAttribute->expressionInvalid(1)))
 439           aState = ModelAPI_StateInvalidArgument;
 440       }
 441     }
 442   }
 443
 444   //if (aState == ModelAPI_StateDone) {// all referenced objects are ready to be used
 445   //std::cout<<"Execute feature "<<theFeature->getKind()<<std::endl;
 446   // before execution update the selection attributes if any
 447   list<AttributePtr> aRefs =
 448     theFeature->data()->attributes(ModelAPI_AttributeSelection::typeId());
 449   list<AttributePtr>::iterator aRefsIter = aRefs.begin();
 450   for (; aRefsIter != aRefs.end(); aRefsIter++) {
 451     std::shared_ptr<ModelAPI_AttributeSelection> aSel =
 452       std::dynamic_pointer_cast<ModelAPI_AttributeSelection>(*aRefsIter);
 453     ObjectPtr aContext = aSel->context();
 454     // update argument onlt if the referenced object is changed
 455     if (aContext.get() && !aContext->isDisabled() &&
 456       (myJustUpdated.find(aContext) != myJustUpdated.end() ||
 457       aContext->data()->updateID() > theFeature->data()->updateID())) {
 458         if (aState == ModelAPI_StateDone)
 459           aState = ModelAPI_StateMustBeUpdated;
 460         if (!aSel->update()) { // this must be done on execution since it may be long operation
 461           if (!aFactory->isNotObligatory(theFeature->getKind(), theFeature->data()->id(aSel)) &&
 462             aFactory->isCase(theFeature, theFeature->data()->id(aSel)))
 463             aState = ModelAPI_StateInvalidArgument;
 464         }
 465     }
 466   }
 467   aRefs = theFeature->data()->attributes(ModelAPI_AttributeSelectionList::typeId());
 468   for (aRefsIter = aRefs.begin(); aRefsIter != aRefs.end(); aRefsIter++) {
 469     std::shared_ptr<ModelAPI_AttributeSelectionList> aSel =
 470       std::dynamic_pointer_cast<ModelAPI_AttributeSelectionList>(*aRefsIter);
 471     for(int a = aSel->size() - 1; a >= 0; a--) {
 472       std::shared_ptr<ModelAPI_AttributeSelection> aSelAttr =
 473         std::dynamic_pointer_cast<ModelAPI_AttributeSelection>(aSel->value(a));
 474       if (aSelAttr) {
 475         ObjectPtr aContext = aSelAttr->context();
 476         // update argument onlt if the referenced object is changed
 477         if (aContext.get() && !aContext->isDisabled() &&
 478             (myJustUpdated.find(aContext) != myJustUpdated.end() ||
 479              aContext->data()->updateID() > theFeature->data()->updateID())) {
 480             if (aState == ModelAPI_StateDone)
 481               aState = ModelAPI_StateMustBeUpdated;
 482             if (!aSelAttr->update()) {
 483               if (!aFactory->isNotObligatory(
 484                 theFeature->getKind(), theFeature->data()->id(aSel)) &&
 485                 aFactory->isCase(theFeature, theFeature->data()->id(aSel)))
 486                 aState = ModelAPI_StateInvalidArgument;
 487             }
 488         }
 489       }
 490     }
 491   }
 492   // check all references: if referenced objects are updated, this object also must be updated
 493   // also check state of referenced objects: if they are not ready, inherit corresponding state
 494   std::list<std::pair<std::string, std::list<ObjectPtr> > > aRefsObj;
 495   std::shared_ptr<Model_Data> aData = std::dynamic_pointer_cast<Model_Data>(theFeature->data());
 496   aData->referencesToObjects(aRefsObj);
 497   std::list<std::pair<std::string, std::list<ObjectPtr> > >::iterator aRef = aRefsObj.begin();
 498   for(; aRef != aRefsObj.end(); aRef++) {
 499     std::list<ObjectPtr>::iterator aRefObj = aRef->second.begin();
 500     for(; aRefObj != aRef->second.end(); aRefObj++) {
 501       // if reference is null, it may mean that this reference is to other document
 502       // the does not supported by RefList: parameters may be recomputed
 503       if (!aRefObj->get() && theFeature->firstResult().get() &&
 504                theFeature->firstResult()->groupName() == ModelAPI_ResultParameter::group()) {
 505           if (aState == ModelAPI_StateDone)
 506             aState = ModelAPI_StateMustBeUpdated;
 507       } else if (myJustUpdated.find(*aRefObj) != myJustUpdated.end() ||
 508              (aRefObj->get() && (*aRefObj)->data()->updateID() > theFeature->data()->updateID())) {
 509           if (aState == ModelAPI_StateDone)
 510             aState = ModelAPI_StateMustBeUpdated;
 511       }
 512       aState = stateByReference(*aRefObj, aState);
 513     }
 514   }
 515   // composites sub-elements
 516   CompositeFeaturePtr aCompos = std::dynamic_pointer_cast<ModelAPI_CompositeFeature>(theFeature);
 517   // composite feature must be executed after sub-features execution
 518   if (aCompos) {
 519     // number of subs can be changed in execution: like fillet
 520     for(int a = 0; a < aCompos->numberOfSubs(); a++) {
 521       FeaturePtr aSub = aCompos->subFeature(a);
 522       if (aSub.get() && aState == ModelAPI_StateDone) {
 523         if (myJustUpdated.find(aSub) != myJustUpdated.end() ||
 524               (aSub->data()->updateID() > theFeature->data()->updateID())) {
 525           aState = ModelAPI_StateMustBeUpdated;
 526         }
 527         // also check that all results of subs were updated: composite also depends on the results
 528         const std::list<std::shared_ptr<ModelAPI_Result> >& aResults = aSub->results();
 529         std::list<std::shared_ptr<ModelAPI_Result> >::const_iterator aResIter = aResults.begin();
 530         for(; aResIter != aResults.end(); aResIter++) {
 531           if (aResIter->get() && (*aResIter)->data()->isValid() && !(*aResIter)->isDisabled() &&
 532                 (myJustUpdated.find(*aResIter) != myJustUpdated.end() ||
 533                   ((*aResIter)->data()->updateID() > theFeature->data()->updateID()))) {
 534             aState = ModelAPI_StateMustBeUpdated;
 535           }
 536         }
 537       }
 538     }
 539   }
 540
 541
 542   if (aState != ModelAPI_StateDone)
 543     theFeature->data()->execState(aState);
 544 }
 545
 546 void Model_Update::executeFeature(FeaturePtr theFeature)
 547 {
 548   // execute in try-catch to avoid internal problems of the feature
 549   ModelAPI_ExecState aState = ModelAPI_StateDone;
 550   theFeature->data()->execState(ModelAPI_StateDone);
 551   try {
 552     theFeature->execute();
 553     myJustUpdated.erase(theFeature);
 554     if (theFeature->data()->execState() != ModelAPI_StateDone) {
 555       aState = ModelAPI_StateExecFailed;
 556     } else {
 557       aState = ModelAPI_StateDone;
 558       myWaitForFinish.insert(theFeature);
 559     }
 560   } catch(...) {
 561     aState = ModelAPI_StateExecFailed;
 562     Events_Error::send(
 563       "Feature " + theFeature->getKind() + " has failed during the execution");
 564   }
 565   if (aState != ModelAPI_StateDone) {
 566     theFeature->eraseResults();
 567   }
 568   theFeature->data()->setUpdateID(ModelAPI_Session::get()->transactionID());
 569   redisplayWithResults(theFeature, aState);
 570 }