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   /* not needed now with history line
  59   Config_PropManager::registerProp("Model update", "automatic_rebuild", "Rebuild immediately",
  60                                    Config_Prop::Boolean, "false");*/
  61   myIsAutomatic = true;
  62   //  Config_PropManager::findProp("Model update", "automatic_rebuild")->value() == "true";
  63   myIsParamUpdated = false;
  64   myIsFinish = false;
  65   myModification = 0;
  66 }
  67
  68 void Model_Update::processEvent(const std::shared_ptr<Events_Message>& theMessage)
  69 {
  70   static Events_Loop* aLoop = Events_Loop::loop();
  71   static const Events_ID kChangedEvent = aLoop->eventByName("PreferenceChanged");
  72   static const Events_ID kRebuildEvent = aLoop->eventByName("Rebuild");
  73   static const Events_ID kCreatedEvent = aLoop->eventByName(EVENT_OBJECT_CREATED);
  74   static const Events_ID kUpdatedEvent = aLoop->eventByName(EVENT_OBJECT_UPDATED);
  75   static const Events_ID kMovedEvent = Events_Loop::loop()->eventByName(EVENT_OBJECT_MOVED);
  76   static const Events_ID kOpFinishEvent = aLoop->eventByName("FinishOperation");
  77   static const Events_ID kOpAbortEvent = aLoop->eventByName("AbortOperation");
  78   static const Events_ID kOpStartEvent = aLoop->eventByName("StartOperation");
  79 #ifdef DEB_UPDATE
  80   std::cout<<"****** Event "<<theMessage->eventID().eventText()<<std::endl;
  81 #endif
  82   if (theMessage->eventID() == kChangedEvent) { // automatic and manual rebuild flag is changed
  83     /*bool aPropVal =
  84       Config_PropManager::findProp("Model update", "automatic_rebuild")->value() == "true";
  85     if (aPropVal != myIsAutomatic) { // something is changed
  86       // myIsAutomatic = aPropVal;
  87       if (myIsAutomatic) // higher level of automatization => to rebuild
  88         processOperation(false);
  89     }*/
  90     return;
  91   } else if (theMessage->eventID() == kRebuildEvent) { // the rebuild command
  92     processOperation(true);
  93   } else if (theMessage->eventID() == kCreatedEvent || theMessage->eventID() == kUpdatedEvent ||
  94              theMessage->eventID() == kMovedEvent) {
  95     std::shared_ptr<ModelAPI_ObjectUpdatedMessage> aMsg =
  96         std::dynamic_pointer_cast<ModelAPI_ObjectUpdatedMessage>(theMessage);
  97     const std::set<ObjectPtr>& anObjs = aMsg->objects();
  98     std::set<ObjectPtr>::const_iterator anObjIter = anObjs.cbegin();
  99     bool isOnlyResults = true; // check that only results were changed: only redisplay is needed
 100     for(; anObjIter != anObjs.cend(); anObjIter++) {
 101       if (!std::dynamic_pointer_cast<ModelAPI_Result>(*anObjIter).get()) {
 102         isOnlyResults = false;
 103       }
 104       if ((*anObjIter)->groupName() == ModelAPI_ResultParameter::group()) {
 105         myIsParamUpdated = true;
 106       }
 107       // on undo/redo, abort do not update persisten features
 108       FeaturePtr anUpdated = std::dynamic_pointer_cast<ModelAPI_Feature>(*anObjIter);
 109       if (std::dynamic_pointer_cast<Model_Document>((*anObjIter)->document())->executeFeatures() ||
 110           (anUpdated.get() && !anUpdated->isPersistentResult())) {
 111         // created objects are always must be up to date (python box feature)
 112         // and updated not in internal uptation chain
 113         myUpdated[*anObjIter] = myModification;
 114
 115         // something is updated during the execution: re-execute it (sketch update by parameters or
 116         // Box macro that updates the upper features during the execution)
 117         if (myIsExecuted) {
 118           FeaturePtr anUpdated = std::dynamic_pointer_cast<ModelAPI_Feature>(*anObjIter);
 119           if (anUpdated.get() &&  anUpdated->data()->isValid())
 120             iterateUpdateBreak(anUpdated);
 121         }
 122 #ifdef DEB_UPDATE
 123         if (myIsExecuted) std::cout<<"During execution ";
 124         if ((*anObjIter)->data() && (*anObjIter)->data()->isValid()) {
 125           std::cout<<"add updated "<<(*anObjIter)->groupName()<<" "
 126             <<(*anObjIter)->data()->name()<<std::endl;
 127         }
 128 #endif
 129       }
 130
 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     myUpdated.clear();
 167     myModification = 0;
 168     myWaitForFinish.clear();
 169   }
 170 }
 171
 172 bool Model_Update::iterateUpdate(std::shared_ptr<ModelAPI_CompositeFeature> theFeature)
 173 {
 174   myProcessIterator.push_back(IterationItem(theFeature));
 175   IterationItem& aCurrent = *myProcessIterator.rbegin();
 176   // two cycles: parameters must be processed first
 177   for(aCurrent.startIteration(true); aCurrent.more(); aCurrent.next()) {
 178     if (aCurrent.current()->getKind() == "Parameter")
 179       updateFeature(aCurrent.current());
 180   }
 181   // number of subs can be changed in execution: like fillet
 182   for(aCurrent.startIteration(false); aCurrent.more(); aCurrent.next()) {
 183     FeaturePtr aSub = aCurrent.current();
 184     if (aSub->getKind() != "Parameter")
 185       updateFeature(aSub);
 186   }
 187   // processing is finished, so, remove the iterated
 188   bool aResult = !aCurrent.isBreaked(); // iteration is finished correctly, not breaked
 189   myProcessIterator.pop_back();
 190   return aResult;
 191 }
 192
 193 void Model_Update::iterateUpdateBreak(std::shared_ptr<ModelAPI_Feature> theFeature)
 194 {
 195   // checking that this feature is before the current iterated one: otherwise break is not needed
 196   std::list<IterationItem>::reverse_iterator aProcessed = myProcessIterator.rbegin();
 197   for(; aProcessed != myProcessIterator.rend(); aProcessed++) {
 198     if (aProcessed->isIterated(theFeature)) {
 199       if (aProcessed->isEarlierThanCurrent(theFeature)) {
 200         // break all lower level iterators
 201         std::list<IterationItem>::reverse_iterator aBreaked = myProcessIterator.rbegin();
 202         for(; aBreaked != aProcessed; aBreaked++) {
 203           aBreaked->setBreaked();
 204         }
 205         // for the current breaked, set iteration to this feature precisely
 206         aBreaked->setCurrentBefore(theFeature);
 207         //myModification++;
 208       }
 209       // the iterator that contains breaked is found, so, nothing else is needed
 210       return;
 211     }
 212   }
 213   // if this feature is not found in the list of the currently iterated, try to break the parent
 214   FeaturePtr aParent = ModelAPI_Tools::compositeOwner(theFeature);
 215   if (aParent.get())
 216     iterateUpdateBreak(aParent);
 217 }
 218
 219 void Model_Update::processOperation(const bool theTotalUpdate, const bool theFinish)
 220 {
 221   /* cancel hardcode due to issue 948
 222   if (theFinish) {
 223     // the hardcode (DBC asked): hide the sketch referenced by extrusion on apply
 224     std::set<std::shared_ptr<ModelAPI_Object> >::iterator aFIter;
 225     for(aFIter = myWaitForFinish.begin(); aFIter != myWaitForFinish.end(); aFIter++)
 226     {
 227       FeaturePtr aF = std::dynamic_pointer_cast<ModelAPI_Feature>(*aFIter);
 228       if (aF && aF->data()->isValid() &&
 229            (aF->getKind() == "Extrusion" || aF->getKind() == "Revolution")) {
 230         AttributeSelectionListPtr aBase = aF->selectionList("base");
 231         if (aBase.get()) {
 232           for(int a = aBase->size() - 1; a >= 0; a--) {
 233             ResultPtr aSketchRes = aBase->value(a)->context();
 234             if (aSketchRes) {
 235               aSketchRes->setDisplayed(false);
 236             }
 237           }
 238         }
 239       }
 240     }
 241   } */
 242   // perform update of everything if needed
 243   if (!myIsExecuted) {
 244     #ifdef DEB_UPDATE
 245       std::cout<<"****** Start processing"<<std::endl;
 246     #endif
 247     myIsExecuted = true;
 248
 249     bool isAutomaticChanged = false;
 250
 251     if (theTotalUpdate && !myIsAutomatic) { // Apply button now works as "Rebuild"
 252       isAutomaticChanged = true;
 253       myIsAutomatic = true;
 254     }
 255     // init iteration from the root document
 256     iterateUpdate(CompositeFeaturePtr());
 257
 258     if (isAutomaticChanged) myIsAutomatic = false;
 259     myIsExecuted = false;
 260     myModification++;
 261
 262     // flush to update display
 263     static Events_Loop* aLoop = Events_Loop::loop();
 264     static Events_ID EVENT_DISP = aLoop->eventByName(EVENT_OBJECT_TO_REDISPLAY);
 265     aLoop->flush(EVENT_DISP);
 266     #ifdef DEB_UPDATE
 267       std::cout<<"****** End processing"<<std::endl;
 268     #endif
 269   }
 270 }
 271
 272 void Model_Update::updateFeature(FeaturePtr theFeature)
 273 {
 274   // check all features this feature depended on (recursive call of updateFeature)
 275   static ModelAPI_ValidatorsFactory* aFactory = ModelAPI_Session::get()->validators();
 276
 277   if (theFeature->isDisabled())
 278     return;
 279
 280   // do not execute the composite that contains the current
 281   bool isPostponedMain = false;
 282   CompositeFeaturePtr aMain = std::dynamic_pointer_cast<ModelAPI_CompositeFeature>(theFeature);
 283   if (theFeature->getKind() == "ExtrusionSketch" && aMain.get()) {
 284     CompositeFeaturePtr aCurrentOwner =
 285       ModelAPI_Tools::compositeOwner(theFeature->document()->currentFeature(false));
 286     isPostponedMain = aCurrentOwner.get() && aMain->isSub(aCurrentOwner);
 287   }
 288
 289   #ifdef DEB_UPDATE
 290     std::cout<<"Update Feature "<<theFeature->name()<<std::endl;
 291   #endif
 292   CompositeFeaturePtr aCompos = std::dynamic_pointer_cast<ModelAPI_CompositeFeature>(theFeature);
 293   // If automatice update is not needed and feature attributes were not updated right now,
 294   // do not execute it and do not update arguments.
 295   if (!myIsAutomatic &&
 296        (myUpdated.find(theFeature) == myUpdated.end() || myUpdated[theFeature] != myModification)
 297        && !aCompos.get()) {
 298     // execute will be performed later, but some features may have not-result
 299     // presentations, so call update for them (like coincidence in the sketcher)
 300     static Events_ID EVENT_DISP = Events_Loop::loop()->eventByName(EVENT_OBJECT_TO_REDISPLAY);
 301     ModelAPI_EventCreator::get()->sendUpdated(theFeature, EVENT_DISP);
 302     return;
 303   }
 304
 305   // Update selection and parameters attributes first, before sub-features analysis (sketch plane).
 306   updateArguments(theFeature);
 307
 308   // composite feature must be executed after sub-features execution
 309   if (aCompos) {
 310     if (!iterateUpdate(aCompos))
 311       return; // iteration was interrupted, so, interrupt the update of this feature (it will be done later)
 312     // reupdate arguments of composite feature: it may be changed during subs execution
 313
 314     // issue 955: extrusion fuse sketch naming must be updated after the sketch update
 315     // so, comment this: if (theFeature->data()->execState() != ModelAPI_StateMustBeUpdated)
 316       updateArguments(theFeature);
 317   }
 318   // this checking must be after the composite feature sub-elements processing:
 319   // composite feature status may depend on it's subelements
 320   if (theFeature->data()->execState() == ModelAPI_StateInvalidArgument) {
 321     theFeature->eraseResults();
 322     redisplayWithResults(theFeature, ModelAPI_StateInvalidArgument); // result also must be updated
 323     return;
 324   }
 325
 326   // only the currently updated features are executed
 327   bool aJustUpdated = myUpdated.find(theFeature) != myUpdated.end();
 328   if (aJustUpdated) {
 329     // if preview is not needed, the created feature was not updated before, so, myModification is not actual for this
 330     if (theFeature->isPreviewNeeded()) {
 331       aJustUpdated = myUpdated[theFeature] == myModification;
 332     }
 333   }
 334
 335   if (myIsAutomatic && theFeature->data()->execState() == ModelAPI_StateMustBeUpdated)
 336     aJustUpdated = true;
 337
 338   // On abort, undo or redo execute is not needed: results in document are updated automatically
 339   // But redisplay is needed: results are updated, must be also updated in the viewer.
 340   if (aJustUpdated &&
 341       !std::dynamic_pointer_cast<Model_Document>(theFeature->document())->executeFeatures()) {
 342     if (!theFeature->isPersistentResult()) { // not persistent must be re-executed on abort, etc.
 343       ModelAPI_ExecState aState = theFeature->data()->execState();
 344       if (aFactory->validate(theFeature)) {
 345         executeFeature(theFeature);
 346       } else {
 347         theFeature->eraseResults();
 348         redisplayWithResults(theFeature, ModelAPI_StateInvalidArgument); // result also must be updated
 349       }
 350     } else {
 351       redisplayWithResults(theFeature, ModelAPI_StateNothing);
 352       if (theFeature->data()->execState() == ModelAPI_StateMustBeUpdated) { // it is done (in the tree)
 353         theFeature->data()->execState(ModelAPI_StateDone);
 354       }
 355       // it will be not updated with new modifications: only the currently updated features are updated
 356       //if (myUpdated.find(theFeature) != myUpdated.end()) {
 357       //  myUpdated.erase(theFeature); // do not update this persistent feature even in the future
 358       //}
 359     }
 360     return;
 361   }
 362
 363   // execute feature if it must be updated
 364   if (theFeature->isPreviewNeeded() || myIsFinish) {
 365     if (aJustUpdated) {
 366       ModelAPI_ExecState aState = theFeature->data()->execState();
 367       if (aFactory->validate(theFeature)) {
 368         if (!isPostponedMain) {
 369           #ifdef DEB_UPDATE
 370             std::cout<<"Execute Feature "<<theFeature->name()<<std::endl;
 371           #endif
 372           executeFeature(theFeature);
 373         }
 374       } else {
 375         #ifdef DEB_UPDATE
 376           std::cout<<"Feature is not valid, erase results "<<theFeature->name()<<std::endl;
 377         #endif
 378         theFeature->eraseResults();
 379         redisplayWithResults(theFeature, ModelAPI_StateInvalidArgument); // result also must be updated
 380       }
 381     }
 382   } else { // preview is not needed => make state Done
 383     if (theFeature->data()->execState() == ModelAPI_StateMustBeUpdated) {
 384       theFeature->data()->execState(ModelAPI_StateDone);
 385       if (aJustUpdated) {// store that it must be updated on finish
 386         myUpdated[theFeature] = myModification;
 387         aFactory->validate(theFeature); // need to be validated to update the "Apply" state if not previewed
 388       }
 389     }
 390   }
 391 }
 392
 393 void Model_Update::redisplayWithResults(FeaturePtr theFeature, const ModelAPI_ExecState theState)
 394 {
 395   // make updated and redisplay all results
 396   static Events_ID EVENT_DISP = Events_Loop::loop()->eventByName(EVENT_OBJECT_TO_REDISPLAY);
 397   const std::list<std::shared_ptr<ModelAPI_Result> >& aResults = theFeature->results();
 398   std::list<std::shared_ptr<ModelAPI_Result> >::const_iterator aRIter = aResults.begin();
 399   for (; aRIter != aResults.cend(); aRIter++) {
 400     std::shared_ptr<ModelAPI_Result> aRes = *aRIter;
 401     if (!aRes->isDisabled()) {// update state only for enabled results (Placement Result Part may make the original Part Result as invalid)
 402       aRes->data()->execState(theState);
 403       if (theState == ModelAPI_StateDone) // feature become "done", so execution changed results
 404         myUpdated[aRes] = myModification;
 405     }
 406     if (theFeature->data()->updateID() > aRes->data()->updateID()) {
 407       aRes->data()->setUpdateID(theFeature->data()->updateID());
 408     }
 409     ModelAPI_EventCreator::get()->sendUpdated(aRes, EVENT_DISP);
 410     // iterate sub-bodies of compsolid
 411     ResultCompSolidPtr aComp = std::dynamic_pointer_cast<ModelAPI_ResultCompSolid>(aRes);
 412     if (aComp.get()) {
 413       int aNumSub = aComp->numberOfSubs();
 414       for(int a = 0; a < aNumSub; a++) {
 415         ResultPtr aSub = aComp->subResult(a);
 416         if (!aSub->isDisabled()) {// update state only for enabled results (Placement Result Part may make the original Part Result as invalid)
 417           aSub->data()->execState(theState);
 418           if (theState == ModelAPI_StateDone) // feature become "done", so execution changed results
 419             myUpdated[aSub] = myModification;
 420         }
 421         if (theFeature->data()->updateID() > aSub->data()->updateID()) {
 422           aSub->data()->setUpdateID(theFeature->data()->updateID());
 423         }
 424         ModelAPI_EventCreator::get()->sendUpdated(aSub, EVENT_DISP);
 425       }
 426     }
 427   }
 428   // to redisplay "presentable" feature (for ex. distance constraint)
 429   ModelAPI_EventCreator::get()->sendUpdated(theFeature, EVENT_DISP);
 430   theFeature->data()->execState(theState);
 431 }
 432
 433 /// Updates the state by the referenced object: if something bad with it, set state for this one
 434 ModelAPI_ExecState stateByReference(ObjectPtr theTarget, const ModelAPI_ExecState theCurrent)
 435 {
 436   if (theTarget) {
 437     ModelAPI_ExecState aRefState = theTarget->data()->execState();
 438     if (aRefState == ModelAPI_StateMustBeUpdated) {
 439       if (theCurrent == ModelAPI_StateDone)
 440         return ModelAPI_StateMustBeUpdated;
 441     } else if (aRefState != ModelAPI_StateDone) {
 442       return ModelAPI_StateInvalidArgument;
 443     }
 444   }
 445   return theCurrent;
 446 }
 447
 448 bool Model_Update::isOlder(std::shared_ptr<ModelAPI_Feature> theFeature,
 449                            std::shared_ptr<ModelAPI_Object> theArgument)
 450 {
 451   int aFeatureID = theFeature->data()->updateID();
 452   int anArgID = theArgument->data()->updateID();
 453   if (aFeatureID < anArgID)
 454     return true;
 455   std::map<std::shared_ptr<ModelAPI_Object>, int >::iterator anAIter = myUpdated.find(theArgument);
 456   if (anAIter == myUpdated.end())
 457     return false;
 458   std::map<std::shared_ptr<ModelAPI_Object>, int >::iterator aFIter = myUpdated.find(theFeature);
 459   if (aFIter == myUpdated.end())
 460     return true; // argument is updated, but feature is not updated at all
 461   return aFIter->second < anAIter->second;
 462 }
 463
 464 void Model_Update::updateArguments(FeaturePtr theFeature) {
 465   // perform this method also for disabled features: to make "not done" state for
 466   // features referenced to the active and modified features
 467
 468   static ModelAPI_ValidatorsFactory* aFactory = ModelAPI_Session::get()->validators();
 469
 470   ModelAPI_ExecState aState = theFeature->data()->execState();
 471   if (aState == ModelAPI_StateExecFailed) { // try again failed feature: issue 577
 472     aState = ModelAPI_StateMustBeUpdated;
 473   }
 474   if (aState == ModelAPI_StateInvalidArgument) // a chance to be corrected
 475     aState = ModelAPI_StateMustBeUpdated;
 476   // check the parameters state
 477   // Double
 478   std::list<AttributePtr> aDoubles =
 479     theFeature->data()->attributes(ModelAPI_AttributeDouble::typeId());
 480   std::list<AttributePtr>::iterator aDoubleIter = aDoubles.begin();
 481   for(; aDoubleIter != aDoubles.end(); aDoubleIter++) {
 482     AttributeDoublePtr aDouble =
 483       std::dynamic_pointer_cast<ModelAPI_AttributeDouble>(*aDoubleIter);
 484     if (aDouble.get() && !aDouble->text().empty()) {
 485       if (myIsParamUpdated) {
 486         ModelAPI_AttributeEvalMessage::send(aDouble, this);
 487       }
 488       if (aDouble->expressionInvalid()) {
 489         aState = ModelAPI_StateInvalidArgument;
 490       }
 491     }
 492   }
 493   // Point
 494   {
 495     std::list<AttributePtr> anAttributes =
 496       theFeature->data()->attributes(GeomDataAPI_Point::typeId());
 497     std::list<AttributePtr>::iterator anIter = anAttributes.begin();
 498     for(; anIter != anAttributes.end(); anIter++) {
 499       AttributePointPtr aPointAttribute =
 500         std::dynamic_pointer_cast<GeomDataAPI_Point>(*anIter);
 501       if (aPointAttribute.get()) {
 502         if (myIsParamUpdated) {
 503           ModelAPI_AttributeEvalMessage::send(aPointAttribute, this);
 504         }
 505         if ((!aPointAttribute->textX().empty() && aPointAttribute->expressionInvalid(0)) ||
 506           (!aPointAttribute->textY().empty() && aPointAttribute->expressionInvalid(1)) ||
 507           (!aPointAttribute->textZ().empty() && aPointAttribute->expressionInvalid(2)))
 508           aState = ModelAPI_StateInvalidArgument;
 509       }
 510     }
 511   }
 512   // Point2D
 513   {
 514     std::list<AttributePtr> anAttributes =
 515       theFeature->data()->attributes(GeomDataAPI_Point2D::typeId());
 516     std::list<AttributePtr>::iterator anIter = anAttributes.begin();
 517     for(; anIter != anAttributes.end(); anIter++) {
 518       AttributePoint2DPtr aPoint2DAttribute =
 519         std::dynamic_pointer_cast<GeomDataAPI_Point2D>(*anIter);
 520       if (aPoint2DAttribute.get()) {
 521         if (myIsParamUpdated) {
 522           ModelAPI_AttributeEvalMessage::send(aPoint2DAttribute, this);
 523         }
 524         if ((!aPoint2DAttribute->textX().empty() && aPoint2DAttribute->expressionInvalid(0)) ||
 525           (!aPoint2DAttribute->textY().empty() && aPoint2DAttribute->expressionInvalid(1)))
 526           aState = ModelAPI_StateInvalidArgument;
 527       }
 528     }
 529   }
 530
 531   //if (aState == ModelAPI_StateDone) {// all referenced objects are ready to be used
 532   //std::cout<<"Execute feature "<<theFeature->getKind()<<std::endl;
 533   // before execution update the selection attributes if any
 534   list<AttributePtr> aRefs =
 535     theFeature->data()->attributes(ModelAPI_AttributeSelection::typeId());
 536   list<AttributePtr>::iterator aRefsIter = aRefs.begin();
 537   for (; aRefsIter != aRefs.end(); aRefsIter++) {
 538     std::shared_ptr<ModelAPI_AttributeSelection> aSel =
 539       std::dynamic_pointer_cast<ModelAPI_AttributeSelection>(*aRefsIter);
 540     ObjectPtr aContext = aSel->context();
 541     // update argument only if the referenced object is changed
 542     if (aContext.get() && !aContext->isDisabled()) {
 543       bool isObligatory = !aFactory->isNotObligatory(
 544         theFeature->getKind(), theFeature->data()->id(aSel)) &&
 545         aFactory->isCase(theFeature, theFeature->data()->id(aSel));
 546       if (isOlder(theFeature, aContext)) {
 547         if (aState == ModelAPI_StateDone)
 548           aState = ModelAPI_StateMustBeUpdated;
 549         if (!aSel->update()) { // this must be done on execution since it may be long operation
 550           if (isObligatory)
 551             aState = ModelAPI_StateInvalidArgument;
 552         }
 553       } else if (aSel->isInvalid()) { // not needed to update, but invalid (stated previously)
 554         if (isObligatory)
 555           aState = ModelAPI_StateInvalidArgument;
 556       }
 557     }
 558   }
 559   aRefs = theFeature->data()->attributes(ModelAPI_AttributeSelectionList::typeId());
 560   for (aRefsIter = aRefs.begin(); aRefsIter != aRefs.end(); aRefsIter++) {
 561     std::shared_ptr<ModelAPI_AttributeSelectionList> aSel =
 562       std::dynamic_pointer_cast<ModelAPI_AttributeSelectionList>(*aRefsIter);
 563     for(int a = aSel->size() - 1; a >= 0; a--) {
 564       std::shared_ptr<ModelAPI_AttributeSelection> aSelAttr =
 565         std::dynamic_pointer_cast<ModelAPI_AttributeSelection>(aSel->value(a));
 566       if (aSelAttr) {
 567         ObjectPtr aContext = aSelAttr->context();
 568         // update argument onlt if the referenced object is changed
 569         if (aContext.get() && !aContext->isDisabled()) {
 570           bool isObligatory = !aFactory->isNotObligatory(
 571             theFeature->getKind(), theFeature->data()->id(aSel)) &&
 572             aFactory->isCase(theFeature, theFeature->data()->id(aSel));
 573           if (isOlder(theFeature, aContext)) {
 574             if (aState == ModelAPI_StateDone)
 575                 aState = ModelAPI_StateMustBeUpdated;
 576             if (!aSelAttr->update()) {
 577               if (isObligatory)
 578                 aState = ModelAPI_StateInvalidArgument;
 579             }
 580           } else if (aSelAttr->isInvalid()) {
 581             if (isObligatory)
 582               aState = ModelAPI_StateInvalidArgument;
 583           }
 584         }
 585       }
 586     }
 587   }
 588   // check all references: if referenced objects are updated, this object also must be updated
 589   // also check state of referenced objects: if they are not ready, inherit corresponding state
 590   std::list<std::pair<std::string, std::list<ObjectPtr> > > aRefsObj;
 591   std::shared_ptr<Model_Data> aData = std::dynamic_pointer_cast<Model_Data>(theFeature->data());
 592   aData->referencesToObjects(aRefsObj);
 593   std::list<std::pair<std::string, std::list<ObjectPtr> > >::iterator aRef = aRefsObj.begin();
 594   for(; aRef != aRefsObj.end(); aRef++) {
 595     std::list<ObjectPtr>::iterator aRefObj = aRef->second.begin();
 596     for(; aRefObj != aRef->second.end(); aRefObj++) {
 597       // if reference is null, it may mean that this reference is to other document
 598       // the does not supported by RefList: parameters may be recomputed
 599       if (!aRefObj->get() && theFeature->firstResult().get() &&
 600                theFeature->firstResult()->groupName() == ModelAPI_ResultParameter::group()) {
 601           if (aState == ModelAPI_StateDone)
 602             aState = ModelAPI_StateMustBeUpdated;
 603       } else if (aRefObj->get() && isOlder(theFeature, *aRefObj)) {
 604         if (aState == ModelAPI_StateDone)
 605           aState = ModelAPI_StateMustBeUpdated;
 606       }
 607       aState = stateByReference(*aRefObj, aState);
 608     }
 609   }
 610   // composites sub-elements
 611   CompositeFeaturePtr aCompos = std::dynamic_pointer_cast<ModelAPI_CompositeFeature>(theFeature);
 612   // composite feature must be executed after sub-features execution
 613   if (aCompos) {
 614     // number of subs can be changed in execution: like fillet
 615     int aNumSubs = aCompos->numberOfSubs();
 616     for(int a = 0; a < aNumSubs; a++) {
 617       FeaturePtr aSub = aCompos->subFeature(a);
 618       if (aSub.get() && aState == ModelAPI_StateDone) {
 619         if (isOlder(theFeature, aSub)) {
 620           aState = ModelAPI_StateMustBeUpdated;
 621         }
 622         // also check that all results of subs were updated: composite also depends on the results
 623         const std::list<std::shared_ptr<ModelAPI_Result> >& aResults = aSub->results();
 624         std::list<std::shared_ptr<ModelAPI_Result> >::const_iterator aResIter = aResults.begin();
 625         for(; aResIter != aResults.end(); aResIter++) {
 626           if (aResIter->get() && (*aResIter)->data()->isValid() && !(*aResIter)->isDisabled() &&
 627               isOlder(theFeature, *aResIter)) {
 628             aState = ModelAPI_StateMustBeUpdated;
 629           }
 630         }
 631       }
 632       if (a == aNumSubs - 1) // in case number of subs is changed, just recheck before end
 633         aNumSubs = aCompos->numberOfSubs();
 634     }
 635   }
 636
 637
 638   if (aState != ModelAPI_StateDone)
 639     theFeature->data()->execState(aState);
 640 }
 641
 642 void Model_Update::executeFeature(FeaturePtr theFeature)
 643 {
 644   // execute in try-catch to avoid internal problems of the feature
 645   ModelAPI_ExecState aState = ModelAPI_StateDone;
 646   theFeature->data()->execState(ModelAPI_StateDone);
 647   try {
 648     theFeature->execute();
 649     if (theFeature->data()->execState() != ModelAPI_StateDone) {
 650       aState = ModelAPI_StateExecFailed;
 651     } else {
 652       aState = ModelAPI_StateDone;
 653       myWaitForFinish.insert(theFeature);
 654     }
 655   } catch(...) {
 656     aState = ModelAPI_StateExecFailed;
 657     Events_Error::send(
 658       "Feature " + theFeature->getKind() + " has failed during the execution");
 659   }
 660   if (aState != ModelAPI_StateDone) {
 661     theFeature->eraseResults();
 662   }
 663   theFeature->data()->setUpdateID(ModelAPI_Session::get()->transactionID());
 664   redisplayWithResults(theFeature, aState);
 665 }
 666
 667 ///////////////// Updated items iterator ////////////////////////
 668 Model_Update::IterationItem::IterationItem(std::shared_ptr<ModelAPI_CompositeFeature> theFeature)
 669 {
 670   myBreaked = false;
 671   myIsVirtual = false;
 672   myMain = theFeature;
 673   myObjects = NULL;
 674   if (!myMain.get() && ModelAPI_Session::get()->hasModuleDocument()) { // no document => nothing to do
 675     DocumentPtr aRootDoc = ModelAPI_Session::get()->moduleDocument();
 676     myObjects = std::dynamic_pointer_cast<Model_Document>(aRootDoc)->objects();
 677   }
 678   mySkipNext = false;
 679 }
 680
 681 void Model_Update::IterationItem::next()
 682 {
 683   if (mySkipNext) { // ignore one next
 684     mySkipNext = false;
 685     return;
 686   }
 687   if (!myBreaked) {
 688     if (myMain.get()) {
 689       myIndex++;
 690       int aNumSubs = myMain->numberOfSubs();
 691       if (myIndex == aNumSubs)
 692         return;
 693       // skip sub-objects, that are subs not only for this: sketch elements relatively to Part
 694       for(FeaturePtr aSub = myMain->subFeature(myIndex); aSub.get();
 695           aSub = myMain->subFeature(myIndex)) {
 696         aSub = myMain->subFeature(myIndex);
 697         CompositeFeaturePtr anOwner = ModelAPI_Tools::compositeOwner(aSub);
 698         if (!anOwner.get() || anOwner == myMain) {
 699           break;
 700         }
 701         myIndex++;
 702         if (myIndex == aNumSubs)
 703           break;
 704       }
 705     } else if (mySub.get()) {
 706       while(mySub.get()) {
 707         mySub = myObjects->nextFeature(mySub);
 708         CompositeFeaturePtr anOwner = ModelAPI_Tools::compositeOwner(mySub);
 709         // skip sub-objects, that are subs not only for this: sketch elements relatively to PartSet
 710         if (!anOwner.get()) {
 711           break;
 712         }
 713       }
 714     }
 715   }
 716 }
 717
 718 bool Model_Update::IterationItem::more()
 719 {
 720   if (myBreaked)
 721     return false;
 722   if (myMain.get())
 723     return myIndex < myMain->numberOfSubs();
 724   return mySub.get() != NULL;
 725 }
 726
 727 FeaturePtr Model_Update::IterationItem::current()
 728 {
 729   if (myMain.get())
 730     return myMain->subFeature(myIndex);
 731   return mySub;
 732 }
 733
 734 void Model_Update::IterationItem::setBreaked()
 735 {
 736   if (!myIsVirtual)
 737     myBreaked = true;
 738 }
 739
 740 void Model_Update::IterationItem::startIteration(const bool theVirtual)
 741 {
 742   myIsVirtual = theVirtual;
 743   if (myMain.get()) {
 744     myIndex = 0;
 745   } else if (myObjects) {
 746     mySub = myObjects->firstFeature();
 747   }
 748 }
 749
 750 bool Model_Update::IterationItem::isIterated(FeaturePtr theFeature)
 751 {
 752   if (myMain.get()) {
 753     if (myMain->isSub(theFeature)) {
 754       CompositeFeaturePtr anOwner = ModelAPI_Tools::compositeOwner(theFeature);
 755       if (!anOwner.get() || anOwner == myMain)
 756         return true;
 757     }
 758     return false;
 759   }
 760   // for the root document just check that this feature in this document and it is not sub
 761   return myObjects->owner() == theFeature->document() &&
 762          !ModelAPI_Tools::compositeOwner(theFeature).get();
 763 }
 764
 765 bool Model_Update::IterationItem::isEarlierThanCurrent(FeaturePtr theFeature)
 766 {
 767   if (myMain.get()) {
 768     for(int a = 0; a < myIndex; a++) {
 769       if (myMain->subFeature(a) == theFeature)
 770         return true;
 771     }
 772   } else {
 773     return !mySub.get() && !myObjects->isLater(theFeature, mySub);
 774   }
 775   return false;
 776 }
 777
 778 void Model_Update::IterationItem::setCurrentBefore(FeaturePtr theFeature)
 779 {
 780   if (myMain.get()) {
 781     for(int a = 0; a < myIndex; a++) {
 782       if (myMain->subFeature(a) == theFeature) {
 783         myIndex = a;
 784         break;
 785       }
 786     }
 787   } else {
 788     mySub = theFeature;
 789   }
 790   mySkipNext = true;
 791 }