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 = true;
  61   //  Config_PropManager::findProp("Model update", "automatic_rebuild")->value() == "true";
  62   myIsParamUpdated = false;
  63   myIsFinish = false;
  64   myModification = 0;
  65 }
  66
  67 void Model_Update::processEvent(const std::shared_ptr<Events_Message>& theMessage)
  68 {
  69   static Events_Loop* aLoop = Events_Loop::loop();
  70   static const Events_ID kChangedEvent = aLoop->eventByName("PreferenceChanged");
  71   static const Events_ID kRebuildEvent = aLoop->eventByName("Rebuild");
  72   static const Events_ID kCreatedEvent = aLoop->eventByName(EVENT_OBJECT_CREATED);
  73   static const Events_ID kUpdatedEvent = aLoop->eventByName(EVENT_OBJECT_UPDATED);
  74   static const Events_ID kMovedEvent = Events_Loop::loop()->eventByName(EVENT_OBJECT_MOVED);
  75   static const Events_ID kOpFinishEvent = aLoop->eventByName("FinishOperation");
  76   static const Events_ID kOpAbortEvent = aLoop->eventByName("AbortOperation");
  77   static const Events_ID kOpStartEvent = aLoop->eventByName("StartOperation");
  78 #ifdef DEB_UPDATE
  79   std::cout<<"****** Event "<<theMessage->eventID().eventText()<<std::endl;
  80 #endif
  81   if (theMessage->eventID() == kChangedEvent) { // automatic and manual rebuild flag is changed
  82     bool aPropVal =
  83       Config_PropManager::findProp("Model update", "automatic_rebuild")->value() == "true";
  84     if (aPropVal != myIsAutomatic) { // something is changed
  85       // myIsAutomatic = aPropVal;
  86       if (myIsAutomatic) // higher level of automatization => to rebuild
  87         processOperation(false);
  88     }
  89   } else if (theMessage->eventID() == kRebuildEvent) { // the rebuild command
  90     processOperation(true);
  91   } else if (theMessage->eventID() == kCreatedEvent || theMessage->eventID() == kUpdatedEvent ||
  92              theMessage->eventID() == kMovedEvent) {
  93     std::shared_ptr<ModelAPI_ObjectUpdatedMessage> aMsg =
  94         std::dynamic_pointer_cast<ModelAPI_ObjectUpdatedMessage>(theMessage);
  95     const std::set<ObjectPtr>& anObjs = aMsg->objects();
  96     std::set<ObjectPtr>::const_iterator anObjIter = anObjs.cbegin();
  97     bool isOnlyResults = true; // check that only results were changed: only redisplay is needed
  98     for(; anObjIter != anObjs.cend(); anObjIter++) {
  99       if (!std::dynamic_pointer_cast<ModelAPI_Result>(*anObjIter).get()) {
 100         isOnlyResults = false;
 101       }
 102       if ((*anObjIter)->groupName() == ModelAPI_ResultParameter::group()) {
 103         myIsParamUpdated = true;
 104       }
 105       // created objects are always must be up to date (python box feature)
 106       // and updated not in internal uptation chain
 107       myUpdated[*anObjIter] = myModification;
 108
 109       // something is updated during the execution: re-execute it (sketch update by parameters or
 110       // Box macro that updates the upper features during the execution)
 111       if (myIsExecuted) {
 112         FeaturePtr anUpdated = std::dynamic_pointer_cast<ModelAPI_Feature>(*anObjIter);
 113         if (anUpdated.get() &&  anUpdated->data()->isValid())
 114           iterateUpdateBreak(anUpdated);
 115       }
 116       #ifdef DEB_UPDATE
 117       if (myIsExecuted) std::cout<<"During execution ";
 118       if ((*anObjIter)->data() && (*anObjIter)->data()->isValid()) {
 119         std::cout<<"add updated "<<(*anObjIter)->groupName()<<" "
 120           <<(*anObjIter)->data()->name()<<std::endl;
 121       }
 122       #endif
 123     }
 124     // this event is for solver update, not here, do not react immediately
 125     if (!isOnlyResults && !(theMessage->eventID() == kMovedEvent))
 126       processOperation(false);
 127   } else if (theMessage->eventID() == kOpFinishEvent || theMessage->eventID() == kOpAbortEvent ||
 128       theMessage->eventID() == kOpStartEvent) {
 129
 130     if (!(theMessage->eventID() == kOpStartEvent)) {
 131       myIsFinish = true;
 132       processOperation(true, theMessage->eventID() == kOpFinishEvent);
 133       myIsFinish = false;
 134     }
 135     // remove all macros before clearing all created
 136     std::set<ObjectPtr>::iterator anUpdatedIter = myWaitForFinish.begin();
 137     while(anUpdatedIter != myWaitForFinish.end()) {
 138       FeaturePtr aFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(*anUpdatedIter);
 139       if (aFeature.get()) {
 140         // remove macro on finish
 141         if (aFeature->isMacro()) {
 142           aFeature->document()->removeFeature(aFeature);
 143           myWaitForFinish.erase(aFeature);
 144         }
 145         // to avoid the map update problems on "remove"
 146         if (myWaitForFinish.find(aFeature) == myWaitForFinish.end()) {
 147           anUpdatedIter = myWaitForFinish.begin();
 148         } else {
 149           anUpdatedIter++;
 150         }
 151       } else {
 152         anUpdatedIter++;
 153       }
 154     }
 155     // in the end of transaction everything is updated, so clear the old objects (the only one
 156     // place where results are cleared)
 157     myIsParamUpdated = false;
 158     myUpdated.clear();
 159     myModification = 0;
 160     myWaitForFinish.clear();
 161   }
 162 }
 163
 164 bool Model_Update::iterateUpdate(std::shared_ptr<ModelAPI_CompositeFeature> theFeature)
 165 {
 166   myProcessIterator.push_back(IterationItem(theFeature));
 167   IterationItem& aCurrent = *myProcessIterator.rbegin();
 168   // two cycles: parameters must be processed first
 169   for(aCurrent.startIteration(true); aCurrent.more(); aCurrent.next()) {
 170     if (aCurrent.current()->getKind() == "Parameter")
 171       updateFeature(aCurrent.current());
 172   }
 173   // number of subs can be changed in execution: like fillet
 174   for(aCurrent.startIteration(false); aCurrent.more(); aCurrent.next()) {
 175     FeaturePtr aSub = aCurrent.current();
 176     if (aSub->getKind() != "Parameter")
 177       updateFeature(aSub);
 178   }
 179   // processing is finished, so, remove the iterated
 180   bool aResult = !aCurrent.isBreaked(); // iteration is finished correctly, not breaked
 181   myProcessIterator.pop_back();
 182   return aResult;
 183 }
 184
 185 void Model_Update::iterateUpdateBreak(std::shared_ptr<ModelAPI_Feature> theFeature)
 186 {
 187   // checking that this feature is before the current iterated one: otherwise break is not needed
 188   std::list<IterationItem>::reverse_iterator aProcessed = myProcessIterator.rbegin();
 189   for(; aProcessed != myProcessIterator.rend(); aProcessed++) {
 190     if (aProcessed->isIterated(theFeature)) {
 191       if (aProcessed->isEarlierThanCurrent(theFeature)) {
 192         // break all lower level iterators
 193         std::list<IterationItem>::reverse_iterator aBreaked = myProcessIterator.rbegin();
 194         for(; aBreaked != aProcessed; aBreaked++) {
 195           aBreaked->setBreaked();
 196         }
 197         // for the current breaked, set iteration to this feature precisely
 198         aBreaked->setCurrentBefore(theFeature);
 199         myModification++;
 200       }
 201       // the iterator that contains breaked is found, so, nothing else is needed
 202       return;
 203     }
 204   }
 205   // if this feature is not found in the list of the currently iterated, try to break the parent
 206   FeaturePtr aParent = ModelAPI_Tools::compositeOwner(theFeature);
 207   if (aParent.get())
 208     iterateUpdateBreak(aParent);
 209 }
 210
 211 void Model_Update::processOperation(const bool theTotalUpdate, const bool theFinish)
 212 {
 213   if (theFinish) {
 214     // the hardcode (DBC asked): hide the sketch referenced by extrusion on apply
 215     std::set<std::shared_ptr<ModelAPI_Object> >::iterator aFIter;
 216     for(aFIter = myWaitForFinish.begin(); aFIter != myWaitForFinish.end(); aFIter++)
 217     {
 218       FeaturePtr aF = std::dynamic_pointer_cast<ModelAPI_Feature>(*aFIter);
 219       if (aF && aF->data()->isValid() && aF->getKind() == "Extrusion") {
 220         AttributeSelectionListPtr aBase = aF->selectionList("base");
 221         if (aBase.get()) {
 222           for(int a = aBase->size() - 1; a >= 0; a--) {
 223             ResultPtr aSketchRes = aBase->value(a)->context();
 224             if (aSketchRes) {
 225               aSketchRes->setDisplayed(false);
 226             }
 227           }
 228         }
 229       }
 230     }
 231   }
 232   // perform update of everything if needed
 233   if (!myIsExecuted) {
 234     #ifdef DEB_UPDATE
 235       std::cout<<"****** Start processing"<<std::endl;
 236     #endif
 237     myIsExecuted = true;
 238
 239     bool isAutomaticChanged = false;
 240
 241     if (theTotalUpdate && !myIsAutomatic) { // Apply button now works as "Rebuild"
 242       isAutomaticChanged = true;
 243       myIsAutomatic = true;
 244     }
 245     // init iteration from the root document
 246     iterateUpdate(CompositeFeaturePtr());
 247
 248     if (isAutomaticChanged) myIsAutomatic = false;
 249     myIsExecuted = false;
 250     myModification++;
 251
 252     // flush to update display
 253     static Events_Loop* aLoop = Events_Loop::loop();
 254     static Events_ID EVENT_DISP = aLoop->eventByName(EVENT_OBJECT_TO_REDISPLAY);
 255     aLoop->flush(EVENT_DISP);
 256     #ifdef DEB_UPDATE
 257       std::cout<<"****** End processing"<<std::endl;
 258     #endif
 259   }
 260 }
 261
 262 void Model_Update::updateFeature(FeaturePtr theFeature)
 263 {
 264   // check all features this feature depended on (recursive call of updateFeature)
 265   static ModelAPI_ValidatorsFactory* aFactory = ModelAPI_Session::get()->validators();
 266
 267   if (theFeature->isDisabled())
 268     return;
 269
 270   #ifdef DEB_UPDATE
 271     //std::cout<<"Update Feature "<<theFeature->name()<<std::endl;
 272   #endif
 273   CompositeFeaturePtr aCompos = std::dynamic_pointer_cast<ModelAPI_CompositeFeature>(theFeature);
 274   // If automatice update is not needed and feature attributes were not updated right now,
 275   // do not execute it and do not update arguments.
 276   if (!myIsAutomatic && myUpdated.find(theFeature) == myUpdated.end() && !aCompos.get()) {
 277     // execute will be performed later, but some features may have not-result
 278     // presentations, so call update for them (like coincidence in the sketcher)
 279     static Events_ID EVENT_DISP = Events_Loop::loop()->eventByName(EVENT_OBJECT_TO_REDISPLAY);
 280     ModelAPI_EventCreator::get()->sendUpdated(theFeature, EVENT_DISP);
 281     return;
 282   }
 283
 284   // Update selection and parameters attributes first, before sub-features analysis (sketch plane).
 285   updateArguments(theFeature);
 286
 287   // composite feature must be executed after sub-features execution
 288   if (aCompos) {
 289     if (!iterateUpdate(aCompos))
 290       return; // iteration was interrupted, so, interrupt the update of this feature (it will be done later)
 291     // reupdate arguments of composite feature: it may be changed during subs execution
 292     if (theFeature->data()->execState() != ModelAPI_StateMustBeUpdated)
 293       updateArguments(theFeature);
 294   }
 295   // this checking must be after the composite feature sub-elements processing:
 296   // composite feature status may depend on it's subelements
 297   if (theFeature->data()->execState() == ModelAPI_StateInvalidArgument) {
 298     theFeature->eraseResults();
 299     redisplayWithResults(theFeature, ModelAPI_StateInvalidArgument); // result also must be updated
 300     return;
 301   }
 302
 303   bool aJustUpdated = myUpdated.find(theFeature) != myUpdated.end();
 304
 305   if (myIsAutomatic && theFeature->data()->execState() == ModelAPI_StateMustBeUpdated)
 306     aJustUpdated = true;
 307
 308   // On abort, undo or redo execute is not needed: results in document are updated automatically
 309   // But redisplay is needed: results are updated, must be also updated in the viewer.
 310   if (aJustUpdated &&
 311       !std::dynamic_pointer_cast<Model_Document>(theFeature->document())->executeFeatures()) {
 312     if (!theFeature->isPersistentResult()) { // not persistent must be re-executed on abort, etc.
 313       ModelAPI_ExecState aState = theFeature->data()->execState();
 314       if (aFactory->validate(theFeature)) {
 315         executeFeature(theFeature);
 316       } else {
 317         theFeature->eraseResults();
 318         redisplayWithResults(theFeature, ModelAPI_StateInvalidArgument); // result also must be updated
 319       }
 320     } else {
 321       redisplayWithResults(theFeature, ModelAPI_StateNothing);
 322       if (theFeature->data()->execState() == ModelAPI_StateMustBeUpdated) { // it is done (in the tree)
 323         theFeature->data()->execState(ModelAPI_StateDone);
 324       }
 325     }
 326     return;
 327   }
 328
 329   // execute feature if it must be updated
 330   if (theFeature->isPreviewNeeded() || myIsFinish) {
 331     if (aJustUpdated) {
 332       ModelAPI_ExecState aState = theFeature->data()->execState();
 333       if (aFactory->validate(theFeature)) {
 334         #ifdef DEB_UPDATE
 335           std::cout<<"Execute Feature "<<theFeature->name()<<std::endl;
 336         #endif
 337         executeFeature(theFeature);
 338       } else {
 339         theFeature->eraseResults();
 340         redisplayWithResults(theFeature, ModelAPI_StateInvalidArgument); // result also must be updated
 341       }
 342     }
 343   } else { // preview is not needed => make state Done
 344     if (theFeature->data()->execState() == ModelAPI_StateMustBeUpdated) {
 345       theFeature->data()->execState(ModelAPI_StateDone);
 346       if (aJustUpdated) // store that it must be updated on finish
 347         myUpdated[theFeature] = myModification;
 348     }
 349   }
 350 }
 351
 352 void Model_Update::redisplayWithResults(FeaturePtr theFeature, const ModelAPI_ExecState theState)
 353 {
 354   // make updated and redisplay all results
 355   static Events_ID EVENT_DISP = Events_Loop::loop()->eventByName(EVENT_OBJECT_TO_REDISPLAY);
 356   const std::list<std::shared_ptr<ModelAPI_Result> >& aResults = theFeature->results();
 357   std::list<std::shared_ptr<ModelAPI_Result> >::const_iterator aRIter = aResults.begin();
 358   for (; aRIter != aResults.cend(); aRIter++) {
 359     std::shared_ptr<ModelAPI_Result> aRes = *aRIter;
 360     if (!aRes->isDisabled()) {// update state only for enabled results (Placement Result Part may make the original Part Result as invalid)
 361       aRes->data()->execState(theState);
 362       if (theState == ModelAPI_StateDone) // feature become "done", so execution changed results
 363         myUpdated[aRes] = myModification;
 364     }
 365     if (theFeature->data()->updateID() > aRes->data()->updateID()) {
 366       aRes->data()->setUpdateID(theFeature->data()->updateID());
 367     }
 368     ModelAPI_EventCreator::get()->sendUpdated(aRes, EVENT_DISP);
 369   }
 370   // to redisplay "presentable" feature (for ex. distance constraint)
 371   ModelAPI_EventCreator::get()->sendUpdated(theFeature, EVENT_DISP);
 372   theFeature->data()->execState(theState);
 373 }
 374
 375 /// Updates the state by the referenced object: if something bad with it, set state for this one
 376 ModelAPI_ExecState stateByReference(ObjectPtr theTarget, const ModelAPI_ExecState theCurrent)
 377 {
 378   if (theTarget) {
 379     ModelAPI_ExecState aRefState = theTarget->data()->execState();
 380     if (aRefState == ModelAPI_StateMustBeUpdated) {
 381       if (theCurrent == ModelAPI_StateDone)
 382         return ModelAPI_StateMustBeUpdated;
 383     } else if (aRefState != ModelAPI_StateDone) {
 384       return ModelAPI_StateInvalidArgument;
 385     }
 386   }
 387   return theCurrent;
 388 }
 389
 390 bool Model_Update::isOlder(std::shared_ptr<ModelAPI_Feature> theFeature,
 391                            std::shared_ptr<ModelAPI_Object> theArgument)
 392 {
 393   int aFeatureID = theFeature->data()->updateID();
 394   int anArgID = theArgument->data()->updateID();
 395   if (aFeatureID < anArgID)
 396     return true;
 397   std::map<std::shared_ptr<ModelAPI_Object>, int >::iterator anAIter = myUpdated.find(theArgument);
 398   if (anAIter == myUpdated.end())
 399     return false;
 400   std::map<std::shared_ptr<ModelAPI_Object>, int >::iterator aFIter = myUpdated.find(theFeature);
 401   if (aFIter == myUpdated.end())
 402     return true; // argument is updated, but feature is not updated at all
 403   return aFIter->second < anAIter->second;
 404 }
 405
 406 void Model_Update::updateArguments(FeaturePtr theFeature) {
 407   // perform this method also for disabled features: to make "not done" state for
 408   // features referenced to the active and modified features
 409
 410   static ModelAPI_ValidatorsFactory* aFactory = ModelAPI_Session::get()->validators();
 411
 412   ModelAPI_ExecState aState = theFeature->data()->execState();
 413   if (aState == ModelAPI_StateExecFailed) { // try again failed feature: issue 577
 414     aState = ModelAPI_StateMustBeUpdated;
 415   }
 416   if (aState == ModelAPI_StateInvalidArgument) // a chance to be corrected
 417     aState = ModelAPI_StateMustBeUpdated;
 418   // check the parameters state
 419   // Double
 420   std::list<AttributePtr> aDoubles =
 421     theFeature->data()->attributes(ModelAPI_AttributeDouble::typeId());
 422   std::list<AttributePtr>::iterator aDoubleIter = aDoubles.begin();
 423   for(; aDoubleIter != aDoubles.end(); aDoubleIter++) {
 424     AttributeDoublePtr aDouble =
 425       std::dynamic_pointer_cast<ModelAPI_AttributeDouble>(*aDoubleIter);
 426     if (aDouble.get() && !aDouble->text().empty()) {
 427       if (myIsParamUpdated) {
 428         ModelAPI_AttributeEvalMessage::send(aDouble, this);
 429       }
 430       if (aDouble->expressionInvalid()) {
 431         aState = ModelAPI_StateInvalidArgument;
 432       }
 433     }
 434   }
 435   // Point
 436   {
 437     std::list<AttributePtr> anAttributes =
 438       theFeature->data()->attributes(GeomDataAPI_Point::typeId());
 439     std::list<AttributePtr>::iterator anIter = anAttributes.begin();
 440     for(; anIter != anAttributes.end(); anIter++) {
 441       AttributePointPtr aPointAttribute =
 442         std::dynamic_pointer_cast<GeomDataAPI_Point>(*anIter);
 443       if (aPointAttribute.get()) {
 444         if (myIsParamUpdated) {
 445           ModelAPI_AttributeEvalMessage::send(aPointAttribute, this);
 446         }
 447         if ((!aPointAttribute->textX().empty() && aPointAttribute->expressionInvalid(0)) ||
 448           (!aPointAttribute->textY().empty() && aPointAttribute->expressionInvalid(1)) ||
 449           (!aPointAttribute->textZ().empty() && aPointAttribute->expressionInvalid(2)))
 450           aState = ModelAPI_StateInvalidArgument;
 451       }
 452     }
 453   }
 454   // Point2D
 455   {
 456     std::list<AttributePtr> anAttributes =
 457       theFeature->data()->attributes(GeomDataAPI_Point2D::typeId());
 458     std::list<AttributePtr>::iterator anIter = anAttributes.begin();
 459     for(; anIter != anAttributes.end(); anIter++) {
 460       AttributePoint2DPtr aPoint2DAttribute =
 461         std::dynamic_pointer_cast<GeomDataAPI_Point2D>(*anIter);
 462       if (aPoint2DAttribute.get()) {
 463         if (myIsParamUpdated) {
 464           ModelAPI_AttributeEvalMessage::send(aPoint2DAttribute, this);
 465         }
 466         if ((!aPoint2DAttribute->textX().empty() && aPoint2DAttribute->expressionInvalid(0)) ||
 467           (!aPoint2DAttribute->textY().empty() && aPoint2DAttribute->expressionInvalid(1)))
 468           aState = ModelAPI_StateInvalidArgument;
 469       }
 470     }
 471   }
 472
 473   //if (aState == ModelAPI_StateDone) {// all referenced objects are ready to be used
 474   //std::cout<<"Execute feature "<<theFeature->getKind()<<std::endl;
 475   // before execution update the selection attributes if any
 476   list<AttributePtr> aRefs =
 477     theFeature->data()->attributes(ModelAPI_AttributeSelection::typeId());
 478   list<AttributePtr>::iterator aRefsIter = aRefs.begin();
 479   for (; aRefsIter != aRefs.end(); aRefsIter++) {
 480     std::shared_ptr<ModelAPI_AttributeSelection> aSel =
 481       std::dynamic_pointer_cast<ModelAPI_AttributeSelection>(*aRefsIter);
 482     ObjectPtr aContext = aSel->context();
 483     // update argument only if the referenced object is changed
 484     if (aContext.get() && !aContext->isDisabled()) {
 485       bool isObligatory = !aFactory->isNotObligatory(
 486         theFeature->getKind(), theFeature->data()->id(aSel)) &&
 487         aFactory->isCase(theFeature, theFeature->data()->id(aSel));
 488       if (isOlder(theFeature, aContext)) {
 489         if (aState == ModelAPI_StateDone)
 490           aState = ModelAPI_StateMustBeUpdated;
 491         if (!aSel->update()) { // this must be done on execution since it may be long operation
 492           if (isObligatory)
 493             aState = ModelAPI_StateInvalidArgument;
 494         }
 495       } else if (aSel->isInvalid()) { // not needed to update, but invalid (stated previously)
 496         aState = ModelAPI_StateInvalidArgument;
 497       }
 498     }
 499   }
 500   aRefs = theFeature->data()->attributes(ModelAPI_AttributeSelectionList::typeId());
 501   for (aRefsIter = aRefs.begin(); aRefsIter != aRefs.end(); aRefsIter++) {
 502     std::shared_ptr<ModelAPI_AttributeSelectionList> aSel =
 503       std::dynamic_pointer_cast<ModelAPI_AttributeSelectionList>(*aRefsIter);
 504     for(int a = aSel->size() - 1; a >= 0; a--) {
 505       std::shared_ptr<ModelAPI_AttributeSelection> aSelAttr =
 506         std::dynamic_pointer_cast<ModelAPI_AttributeSelection>(aSel->value(a));
 507       if (aSelAttr) {
 508         ObjectPtr aContext = aSelAttr->context();
 509         // update argument onlt if the referenced object is changed
 510         if (aContext.get() && !aContext->isDisabled()) {
 511           bool isObligatory = !aFactory->isNotObligatory(
 512             theFeature->getKind(), theFeature->data()->id(aSel)) &&
 513             aFactory->isCase(theFeature, theFeature->data()->id(aSel));
 514           if (isOlder(theFeature, aContext)) {
 515             if (aState == ModelAPI_StateDone)
 516                 aState = ModelAPI_StateMustBeUpdated;
 517             if (!aSelAttr->update()) {
 518               if (isObligatory)
 519                 aState = ModelAPI_StateInvalidArgument;
 520             }
 521           } else if (aSelAttr->isInvalid()) {
 522             aState = ModelAPI_StateInvalidArgument;
 523           }
 524         }
 525       }
 526     }
 527   }
 528   // check all references: if referenced objects are updated, this object also must be updated
 529   // also check state of referenced objects: if they are not ready, inherit corresponding state
 530   std::list<std::pair<std::string, std::list<ObjectPtr> > > aRefsObj;
 531   std::shared_ptr<Model_Data> aData = std::dynamic_pointer_cast<Model_Data>(theFeature->data());
 532   aData->referencesToObjects(aRefsObj);
 533   std::list<std::pair<std::string, std::list<ObjectPtr> > >::iterator aRef = aRefsObj.begin();
 534   for(; aRef != aRefsObj.end(); aRef++) {
 535     std::list<ObjectPtr>::iterator aRefObj = aRef->second.begin();
 536     for(; aRefObj != aRef->second.end(); aRefObj++) {
 537       // if reference is null, it may mean that this reference is to other document
 538       // the does not supported by RefList: parameters may be recomputed
 539       if (!aRefObj->get() && theFeature->firstResult().get() &&
 540                theFeature->firstResult()->groupName() == ModelAPI_ResultParameter::group()) {
 541           if (aState == ModelAPI_StateDone)
 542             aState = ModelAPI_StateMustBeUpdated;
 543       } else if (aRefObj->get() && isOlder(theFeature, *aRefObj)) {
 544         if (aState == ModelAPI_StateDone)
 545           aState = ModelAPI_StateMustBeUpdated;
 546       }
 547       aState = stateByReference(*aRefObj, aState);
 548     }
 549   }
 550   // composites sub-elements
 551   CompositeFeaturePtr aCompos = std::dynamic_pointer_cast<ModelAPI_CompositeFeature>(theFeature);
 552   // composite feature must be executed after sub-features execution
 553   if (aCompos) {
 554     // number of subs can be changed in execution: like fillet
 555     for(int a = 0; a < aCompos->numberOfSubs(); a++) {
 556       FeaturePtr aSub = aCompos->subFeature(a);
 557       if (aSub.get() && aState == ModelAPI_StateDone) {
 558         if (isOlder(theFeature, aSub)) {
 559           aState = ModelAPI_StateMustBeUpdated;
 560         }
 561         // also check that all results of subs were updated: composite also depends on the results
 562         const std::list<std::shared_ptr<ModelAPI_Result> >& aResults = aSub->results();
 563         std::list<std::shared_ptr<ModelAPI_Result> >::const_iterator aResIter = aResults.begin();
 564         for(; aResIter != aResults.end(); aResIter++) {
 565           if (aResIter->get() && (*aResIter)->data()->isValid() && !(*aResIter)->isDisabled() &&
 566               isOlder(theFeature, *aResIter)) {
 567             aState = ModelAPI_StateMustBeUpdated;
 568           }
 569         }
 570       }
 571     }
 572   }
 573
 574
 575   if (aState != ModelAPI_StateDone)
 576     theFeature->data()->execState(aState);
 577 }
 578
 579 void Model_Update::executeFeature(FeaturePtr theFeature)
 580 {
 581   // execute in try-catch to avoid internal problems of the feature
 582   ModelAPI_ExecState aState = ModelAPI_StateDone;
 583   theFeature->data()->execState(ModelAPI_StateDone);
 584   try {
 585     theFeature->execute();
 586     if (theFeature->data()->execState() != ModelAPI_StateDone) {
 587       aState = ModelAPI_StateExecFailed;
 588     } else {
 589       aState = ModelAPI_StateDone;
 590       myWaitForFinish.insert(theFeature);
 591     }
 592   } catch(...) {
 593     aState = ModelAPI_StateExecFailed;
 594     Events_Error::send(
 595       "Feature " + theFeature->getKind() + " has failed during the execution");
 596   }
 597   if (aState != ModelAPI_StateDone) {
 598     theFeature->eraseResults();
 599   }
 600   theFeature->data()->setUpdateID(ModelAPI_Session::get()->transactionID());
 601   redisplayWithResults(theFeature, aState);
 602 }
 603
 604 ///////////////// Updated items iterator ////////////////////////
 605 Model_Update::IterationItem::IterationItem(std::shared_ptr<ModelAPI_CompositeFeature> theFeature)
 606 {
 607   myBreaked = false;
 608   myIsVirtual = false;
 609   myMain = theFeature;
 610   myObjects = NULL;
 611   if (!myMain.get() && ModelAPI_Session::get()->hasModuleDocument()) { // no document => nothing to do
 612     DocumentPtr aRootDoc = ModelAPI_Session::get()->moduleDocument();
 613     myObjects = std::dynamic_pointer_cast<Model_Document>(aRootDoc)->objects();
 614   }
 615   mySkipNext = false;
 616 }
 617
 618 void Model_Update::IterationItem::next()
 619 {
 620   if (mySkipNext) { // ignore one next
 621     mySkipNext = false;
 622     return;
 623   }
 624   if (!myBreaked) {
 625     if (myMain.get()) {
 626       myIndex++;
 627       int aNumSubs = myMain->numberOfSubs();
 628       if (myIndex == aNumSubs)
 629         return;
 630       // skip sub-objects, that are subs not only for this: sketch elements relatively to Part
 631       for(FeaturePtr aSub = myMain->subFeature(myIndex); aSub.get();
 632           aSub = myMain->subFeature(myIndex)) {
 633         aSub = myMain->subFeature(myIndex);
 634         CompositeFeaturePtr anOwner = ModelAPI_Tools::compositeOwner(aSub);
 635         if (!anOwner.get() || anOwner == myMain) {
 636           break;
 637         }
 638         myIndex++;
 639         if (myIndex == aNumSubs)
 640           break;
 641       }
 642     } else if (mySub.get()) {
 643       mySub = myObjects->nextFeature(mySub);
 644     }
 645   }
 646 }
 647
 648 bool Model_Update::IterationItem::more()
 649 {
 650   if (myBreaked)
 651     return false;
 652   if (myMain.get())
 653     return myIndex < myMain->numberOfSubs();
 654   return mySub.get() != NULL;
 655 }
 656
 657 FeaturePtr Model_Update::IterationItem::current()
 658 {
 659   if (myMain.get())
 660     return myMain->subFeature(myIndex);
 661   return mySub;
 662 }
 663
 664 void Model_Update::IterationItem::setBreaked()
 665 {
 666   if (!myIsVirtual)
 667     myBreaked = true;
 668 }
 669
 670 void Model_Update::IterationItem::startIteration(const bool theVirtual)
 671 {
 672   myIsVirtual = theVirtual;
 673   if (myMain.get()) {
 674     myIndex = 0;
 675   } else if (myObjects) {
 676     mySub = myObjects->firstFeature();
 677   }
 678 }
 679
 680 bool Model_Update::IterationItem::isIterated(FeaturePtr theFeature)
 681 {
 682   if (myMain.get()) {
 683     if (myMain->isSub(theFeature)) {
 684       CompositeFeaturePtr anOwner = ModelAPI_Tools::compositeOwner(theFeature);
 685       if (!anOwner.get() || anOwner == myMain)
 686         return true;
 687     }
 688     return false;
 689   }
 690   // for the root document just check that this feature in this document and it is not sub
 691   return myObjects->owner() == theFeature->document() &&
 692          !ModelAPI_Tools::compositeOwner(theFeature).get();
 693 }
 694
 695 bool Model_Update::IterationItem::isEarlierThanCurrent(FeaturePtr theFeature)
 696 {
 697   if (myMain.get()) {
 698     for(int a = 0; a < myIndex; a++) {
 699       if (myMain->subFeature(a) == theFeature)
 700         return true;
 701     }
 702   } else {
 703     return !mySub.get() && !myObjects->isLater(theFeature, mySub);
 704   }
 705   return false;
 706 }
 707
 708 void Model_Update::IterationItem::setCurrentBefore(FeaturePtr theFeature)
 709 {
 710   if (myMain.get()) {
 711     for(int a = 0; a < myIndex; a++) {
 712       if (myMain->subFeature(a) == theFeature) {
 713         myIndex = a;
 714         break;
 715       }
 716     }
 717   } else {
 718     mySub = theFeature;
 719   }
 720   mySkipNext = true;
 721 }