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) && aState != ModelAPI_StateInvalidArgument) {
 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     myProcessed.clear(); // to avoid keeping features in memory
 225     myIsExecuted = false;
 226
 227     // flush to update display
 228     static Events_Loop* aLoop = Events_Loop::loop();
 229     static Events_ID EVENT_DISP = aLoop->eventByName(EVENT_OBJECT_TO_REDISPLAY);
 230     aLoop->flush(EVENT_DISP);
 231     #ifdef DEB_UPDATE
 232       std::cout<<"****** End processing"<<std::endl;
 233     #endif
 234   }
 235 }
 236
 237 void Model_Update::updateFeature(FeaturePtr theFeature)
 238 {
 239   // check all features this feature depended on (recursive call of updateFeature)
 240   static ModelAPI_ValidatorsFactory* aFactory = ModelAPI_Session::get()->validators();
 241
 242   if (myProcessed.find(theFeature) != myProcessed.end())
 243     return;
 244   myProcessed.insert(theFeature);
 245   if (theFeature->isDisabled())
 246     return;
 247
 248   #ifdef DEB_UPDATE
 249     std::cout<<"Update Feature "<<theFeature->name()<<std::endl;
 250   #endif
 251   CompositeFeaturePtr aCompos = std::dynamic_pointer_cast<ModelAPI_CompositeFeature>(theFeature);
 252   // If automatice update is not needed and feature attributes were not updated right now,
 253   // do not execute it and do not update arguments.
 254   if (!myIsAutomatic && myJustUpdated.find(theFeature) == myJustUpdated.end() && !aCompos.get()) {
 255     // execute will be performed later, but some features may have not-result
 256     // presentations, so call update for them (like coincidence in the sketcher)
 257     static Events_ID EVENT_DISP = Events_Loop::loop()->eventByName(EVENT_OBJECT_TO_REDISPLAY);
 258     ModelAPI_EventCreator::get()->sendUpdated(theFeature, EVENT_DISP);
 259     return;
 260   }
 261
 262   // Update selection and parameters attributes first, before sub-features analysis (sketch plane).
 263   updateArguments(theFeature);
 264
 265   // composite feature must be executed after sub-features execution
 266   if (aCompos) {
 267     // two cycles: parameters must be processed first
 268     for(int a = 0; a < aCompos->numberOfSubs(); a++) {
 269       FeaturePtr aSub = aCompos->subFeature(a);
 270       if (aSub->getKind() == "Parameter")
 271         updateFeature(aSub);
 272     }
 273     // number of subs can be changed in execution: like fillet
 274     for(int a = 0; a < aCompos->numberOfSubs(); a++) {
 275       FeaturePtr aSub = aCompos->subFeature(a);
 276       if (aSub->getKind() != "Parameter")
 277        updateFeature(aSub);
 278     }
 279     // reupdate arguments of composite feature: it may be changed during subs execution
 280     if (theFeature->data()->execState() != ModelAPI_StateMustBeUpdated)
 281       updateArguments(theFeature);
 282   }
 283   // this checking must be after the composite feature sub-elements processing:
 284   // composite feature status may depend on it's subelements
 285   if (theFeature->data()->execState() == ModelAPI_StateInvalidArgument) {
 286     theFeature->eraseResults();
 287     redisplayWithResults(theFeature, ModelAPI_StateInvalidArgument); // result also must be updated
 288     return;
 289   }
 290
 291   bool aJustUpdated = myJustUpdated.find(theFeature) != myJustUpdated.end();
 292
 293   if (myIsAutomatic && theFeature->data()->execState() == ModelAPI_StateMustBeUpdated)
 294     aJustUpdated = true;
 295
 296   // On abort, undo or redo execute is not needed: results in document are updated automatically
 297   // But redisplay is needed: results are updated, must be also updated in the viewer.
 298   if (aJustUpdated &&
 299       !std::dynamic_pointer_cast<Model_Document>(theFeature->document())->executeFeatures()) {
 300     if (!theFeature->isPersistentResult()) { // not persistent must be re-executed on abort, etc.
 301       ModelAPI_ExecState aState = theFeature->data()->execState();
 302       if (aFactory->validate(theFeature)) {
 303         executeFeature(theFeature);
 304       } else {
 305         theFeature->eraseResults();
 306         redisplayWithResults(theFeature, ModelAPI_StateInvalidArgument); // result also must be updated
 307       }
 308     } else {
 309       redisplayWithResults(theFeature, ModelAPI_StateNothing);
 310       if (theFeature->data()->execState() == ModelAPI_StateMustBeUpdated) { // it is done (in the tree)
 311         theFeature->data()->execState(ModelAPI_StateDone);
 312       }
 313     }
 314     return;
 315   }
 316
 317   // execute feature if it must be updated
 318   if (theFeature->isPreviewNeeded() || myIsFinish) {
 319     if (aJustUpdated) {
 320       ModelAPI_ExecState aState = theFeature->data()->execState();
 321       if (aFactory->validate(theFeature)) {
 322         #ifdef DEB_UPDATE
 323           std::cout<<"Execute Feature "<<theFeature->name()<<std::endl;
 324         #endif
 325         executeFeature(theFeature);
 326       } else {
 327         theFeature->eraseResults();
 328         redisplayWithResults(theFeature, ModelAPI_StateInvalidArgument); // result also must be updated
 329       }
 330     }
 331   } else { // preview is not needed => make state Done
 332     if (theFeature->data()->execState() == ModelAPI_StateMustBeUpdated) {
 333       theFeature->data()->execState(ModelAPI_StateDone);
 334       if (aJustUpdated) // store that it must be updated on finish
 335         myJustUpdated.insert(theFeature);
 336     }
 337   }
 338 }
 339
 340 void Model_Update::redisplayWithResults(FeaturePtr theFeature, const ModelAPI_ExecState theState)
 341 {
 342   // make updated and redisplay all results
 343   static Events_ID EVENT_DISP = Events_Loop::loop()->eventByName(EVENT_OBJECT_TO_REDISPLAY);
 344   const std::list<std::shared_ptr<ModelAPI_Result> >& aResults = theFeature->results();
 345   std::list<std::shared_ptr<ModelAPI_Result> >::const_iterator aRIter = aResults.begin();
 346   for (; aRIter != aResults.cend(); aRIter++) {
 347     std::shared_ptr<ModelAPI_Result> aRes = *aRIter;
 348     if (!aRes->isDisabled()) {// update state only for enabled results (Placement Result Part may make the original Part Result as invalid)
 349       aRes->data()->execState(theState);
 350       if (theState == ModelAPI_StateDone) // feature become "done", so execution changed results
 351         myJustUpdated.insert(aRes);
 352     }
 353     if (theFeature->data()->updateID() > aRes->data()->updateID()) {
 354       aRes->data()->setUpdateID(theFeature->data()->updateID());
 355     }
 356     ModelAPI_EventCreator::get()->sendUpdated(aRes, EVENT_DISP);
 357   }
 358   // to redisplay "presentable" feature (for ex. distance constraint)
 359   ModelAPI_EventCreator::get()->sendUpdated(theFeature, EVENT_DISP);
 360   theFeature->data()->execState(theState);
 361 }
 362
 363 /// Updates the state by the referenced object: if something bad with it, set state for this one
 364 ModelAPI_ExecState stateByReference(ObjectPtr theTarget, const ModelAPI_ExecState theCurrent)
 365 {
 366   if (theTarget) {
 367     ModelAPI_ExecState aRefState = theTarget->data()->execState();
 368     if (aRefState == ModelAPI_StateMustBeUpdated) {
 369       if (theCurrent == ModelAPI_StateDone)
 370         return ModelAPI_StateMustBeUpdated;
 371     } else if (aRefState != ModelAPI_StateDone) {
 372       return ModelAPI_StateInvalidArgument;
 373     }
 374   }
 375   return theCurrent;
 376 }
 377
 378 void Model_Update::updateArguments(FeaturePtr theFeature) {
 379   // perform this method also for disabled features: to make "not done" state for
 380   // features referenced to the active and modified features
 381
 382   static ModelAPI_ValidatorsFactory* aFactory = ModelAPI_Session::get()->validators();
 383
 384   ModelAPI_ExecState aState = theFeature->data()->execState();
 385   if (aState == ModelAPI_StateExecFailed) { // try again failed feature: issue 577
 386     aState = ModelAPI_StateMustBeUpdated;
 387   }
 388   if (aState == ModelAPI_StateInvalidArgument) // a chance to be corrected
 389     aState = ModelAPI_StateMustBeUpdated;
 390   // check the parameters state
 391   // Double
 392   std::list<AttributePtr> aDoubles =
 393     theFeature->data()->attributes(ModelAPI_AttributeDouble::typeId());
 394   std::list<AttributePtr>::iterator aDoubleIter = aDoubles.begin();
 395   for(; aDoubleIter != aDoubles.end(); aDoubleIter++) {
 396     AttributeDoublePtr aDouble =
 397       std::dynamic_pointer_cast<ModelAPI_AttributeDouble>(*aDoubleIter);
 398     if (aDouble.get() && !aDouble->text().empty()) {
 399       if (myIsParamUpdated) {
 400         ModelAPI_AttributeEvalMessage::send(aDouble, this);
 401       }
 402       if (aDouble->expressionInvalid()) {
 403         aState = ModelAPI_StateInvalidArgument;
 404       }
 405     }
 406   }
 407   // Point
 408   {
 409     std::list<AttributePtr> anAttributes =
 410       theFeature->data()->attributes(GeomDataAPI_Point::typeId());
 411     std::list<AttributePtr>::iterator anIter = anAttributes.begin();
 412     for(; anIter != anAttributes.end(); anIter++) {
 413       AttributePointPtr aPointAttribute =
 414         std::dynamic_pointer_cast<GeomDataAPI_Point>(*anIter);
 415       if (aPointAttribute.get()) {
 416         if (myIsParamUpdated) {
 417           ModelAPI_AttributeEvalMessage::send(aPointAttribute, this);
 418         }
 419         if ((!aPointAttribute->textX().empty() && aPointAttribute->expressionInvalid(0)) ||
 420           (!aPointAttribute->textY().empty() && aPointAttribute->expressionInvalid(1)) ||
 421           (!aPointAttribute->textZ().empty() && aPointAttribute->expressionInvalid(2)))
 422           aState = ModelAPI_StateInvalidArgument;
 423       }
 424     }
 425   }
 426   // Point2D
 427   {
 428     std::list<AttributePtr> anAttributes =
 429       theFeature->data()->attributes(GeomDataAPI_Point2D::typeId());
 430     std::list<AttributePtr>::iterator anIter = anAttributes.begin();
 431     for(; anIter != anAttributes.end(); anIter++) {
 432       AttributePoint2DPtr aPoint2DAttribute =
 433         std::dynamic_pointer_cast<GeomDataAPI_Point2D>(*anIter);
 434       if (aPoint2DAttribute.get()) {
 435         if (myIsParamUpdated) {
 436           ModelAPI_AttributeEvalMessage::send(aPoint2DAttribute, this);
 437         }
 438         if ((!aPoint2DAttribute->textX().empty() && aPoint2DAttribute->expressionInvalid(0)) ||
 439           (!aPoint2DAttribute->textY().empty() && aPoint2DAttribute->expressionInvalid(1)))
 440           aState = ModelAPI_StateInvalidArgument;
 441       }
 442     }
 443   }
 444
 445   //if (aState == ModelAPI_StateDone) {// all referenced objects are ready to be used
 446   //std::cout<<"Execute feature "<<theFeature->getKind()<<std::endl;
 447   // before execution update the selection attributes if any
 448   list<AttributePtr> aRefs =
 449     theFeature->data()->attributes(ModelAPI_AttributeSelection::typeId());
 450   list<AttributePtr>::iterator aRefsIter = aRefs.begin();
 451   for (; aRefsIter != aRefs.end(); aRefsIter++) {
 452     std::shared_ptr<ModelAPI_AttributeSelection> aSel =
 453       std::dynamic_pointer_cast<ModelAPI_AttributeSelection>(*aRefsIter);
 454     ObjectPtr aContext = aSel->context();
 455     // update argument only if the referenced object is changed
 456     if (aContext.get() && !aContext->isDisabled()) {
 457       bool isObligatory = !aFactory->isNotObligatory(
 458         theFeature->getKind(), theFeature->data()->id(aSel)) &&
 459         aFactory->isCase(theFeature, theFeature->data()->id(aSel));
 460       if (myJustUpdated.find(aContext) != myJustUpdated.end() ||
 461           aContext->data()->updateID() > theFeature->data()->updateID()) {
 462         if (aState == ModelAPI_StateDone)
 463           aState = ModelAPI_StateMustBeUpdated;
 464         if (!aSel->update()) { // this must be done on execution since it may be long operation
 465           if (isObligatory)
 466             aState = ModelAPI_StateInvalidArgument;
 467         }
 468       } else if (aSel->isInvalid()) { // not needed to update, but invalid (stated previously)
 469         aState = ModelAPI_StateInvalidArgument;
 470       }
 471     }
 472   }
 473   aRefs = theFeature->data()->attributes(ModelAPI_AttributeSelectionList::typeId());
 474   for (aRefsIter = aRefs.begin(); aRefsIter != aRefs.end(); aRefsIter++) {
 475     std::shared_ptr<ModelAPI_AttributeSelectionList> aSel =
 476       std::dynamic_pointer_cast<ModelAPI_AttributeSelectionList>(*aRefsIter);
 477     for(int a = aSel->size() - 1; a >= 0; a--) {
 478       std::shared_ptr<ModelAPI_AttributeSelection> aSelAttr =
 479         std::dynamic_pointer_cast<ModelAPI_AttributeSelection>(aSel->value(a));
 480       if (aSelAttr) {
 481         ObjectPtr aContext = aSelAttr->context();
 482         // update argument onlt if the referenced object is changed
 483         if (aContext.get() && !aContext->isDisabled()) {
 484           bool isObligatory = !aFactory->isNotObligatory(
 485             theFeature->getKind(), theFeature->data()->id(aSel)) &&
 486             aFactory->isCase(theFeature, theFeature->data()->id(aSel));
 487           if ((myJustUpdated.find(aContext) != myJustUpdated.end() ||
 488                aContext->data()->updateID() > theFeature->data()->updateID())) {
 489             if (aState == ModelAPI_StateDone)
 490                 aState = ModelAPI_StateMustBeUpdated;
 491             if (!aSelAttr->update()) {
 492               if (isObligatory)
 493                 aState = ModelAPI_StateInvalidArgument;
 494             }
 495           } else if (aSelAttr->isInvalid()) {
 496             aState = ModelAPI_StateInvalidArgument;
 497           }
 498         }
 499       }
 500     }
 501   }
 502   // check all references: if referenced objects are updated, this object also must be updated
 503   // also check state of referenced objects: if they are not ready, inherit corresponding state
 504   std::list<std::pair<std::string, std::list<ObjectPtr> > > aRefsObj;
 505   std::shared_ptr<Model_Data> aData = std::dynamic_pointer_cast<Model_Data>(theFeature->data());
 506   aData->referencesToObjects(aRefsObj);
 507   std::list<std::pair<std::string, std::list<ObjectPtr> > >::iterator aRef = aRefsObj.begin();
 508   for(; aRef != aRefsObj.end(); aRef++) {
 509     std::list<ObjectPtr>::iterator aRefObj = aRef->second.begin();
 510     for(; aRefObj != aRef->second.end(); aRefObj++) {
 511       // if reference is null, it may mean that this reference is to other document
 512       // the does not supported by RefList: parameters may be recomputed
 513       if (!aRefObj->get() && theFeature->firstResult().get() &&
 514                theFeature->firstResult()->groupName() == ModelAPI_ResultParameter::group()) {
 515           if (aState == ModelAPI_StateDone)
 516             aState = ModelAPI_StateMustBeUpdated;
 517       } else if (myJustUpdated.find(*aRefObj) != myJustUpdated.end() ||
 518              (aRefObj->get() && (*aRefObj)->data()->updateID() > theFeature->data()->updateID())) {
 519           if (aState == ModelAPI_StateDone)
 520             aState = ModelAPI_StateMustBeUpdated;
 521       }
 522       aState = stateByReference(*aRefObj, aState);
 523     }
 524   }
 525   // composites sub-elements
 526   CompositeFeaturePtr aCompos = std::dynamic_pointer_cast<ModelAPI_CompositeFeature>(theFeature);
 527   // composite feature must be executed after sub-features execution
 528   if (aCompos) {
 529     // number of subs can be changed in execution: like fillet
 530     for(int a = 0; a < aCompos->numberOfSubs(); a++) {
 531       FeaturePtr aSub = aCompos->subFeature(a);
 532       if (aSub.get() && aState == ModelAPI_StateDone) {
 533         if (myJustUpdated.find(aSub) != myJustUpdated.end() ||
 534               (aSub->data()->updateID() > theFeature->data()->updateID())) {
 535           aState = ModelAPI_StateMustBeUpdated;
 536         }
 537         // also check that all results of subs were updated: composite also depends on the results
 538         const std::list<std::shared_ptr<ModelAPI_Result> >& aResults = aSub->results();
 539         std::list<std::shared_ptr<ModelAPI_Result> >::const_iterator aResIter = aResults.begin();
 540         for(; aResIter != aResults.end(); aResIter++) {
 541           if (aResIter->get() && (*aResIter)->data()->isValid() && !(*aResIter)->isDisabled() &&
 542                 (myJustUpdated.find(*aResIter) != myJustUpdated.end() ||
 543                   ((*aResIter)->data()->updateID() > theFeature->data()->updateID()))) {
 544             aState = ModelAPI_StateMustBeUpdated;
 545           }
 546         }
 547       }
 548     }
 549   }
 550
 551
 552   if (aState != ModelAPI_StateDone)
 553     theFeature->data()->execState(aState);
 554 }
 555
 556 void Model_Update::executeFeature(FeaturePtr theFeature)
 557 {
 558   // execute in try-catch to avoid internal problems of the feature
 559   ModelAPI_ExecState aState = ModelAPI_StateDone;
 560   theFeature->data()->execState(ModelAPI_StateDone);
 561   try {
 562     theFeature->execute();
 563     myJustUpdated.erase(theFeature);
 564     if (theFeature->data()->execState() != ModelAPI_StateDone) {
 565       aState = ModelAPI_StateExecFailed;
 566     } else {
 567       aState = ModelAPI_StateDone;
 568       myWaitForFinish.insert(theFeature);
 569     }
 570   } catch(...) {
 571     aState = ModelAPI_StateExecFailed;
 572     Events_Error::send(
 573       "Feature " + theFeature->getKind() + " has failed during the execution");
 574   }
 575   if (aState != ModelAPI_StateDone) {
 576     theFeature->eraseResults();
 577   }
 578   theFeature->data()->setUpdateID(ModelAPI_Session::get()->transactionID());
 579   redisplayWithResults(theFeature, aState);
 580 }