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       // on undo/redo, abort do not update persisten features
 106       FeaturePtr anUpdated = std::dynamic_pointer_cast<ModelAPI_Feature>(*anObjIter);
 107       if (std::dynamic_pointer_cast<Model_Document>((*anObjIter)->document())->executeFeatures() ||
 108           (anUpdated.get() && !anUpdated->isPersistentResult())) {
 109         // created objects are always must be up to date (python box feature)
 110         // and updated not in internal uptation chain
 111         myUpdated[*anObjIter] = myModification;
 112
 113         // something is updated during the execution: re-execute it (sketch update by parameters or
 114         // Box macro that updates the upper features during the execution)
 115         if (myIsExecuted) {
 116           FeaturePtr anUpdated = std::dynamic_pointer_cast<ModelAPI_Feature>(*anObjIter);
 117           if (anUpdated.get() &&  anUpdated->data()->isValid())
 118             iterateUpdateBreak(anUpdated);
 119         }
 120 #ifdef DEB_UPDATE
 121         if (myIsExecuted) std::cout<<"During execution ";
 122         if ((*anObjIter)->data() && (*anObjIter)->data()->isValid()) {
 123           std::cout<<"add updated "<<(*anObjIter)->groupName()<<" "
 124             <<(*anObjIter)->data()->name()<<std::endl;
 125         }
 126 #endif
 127       }
 128
 129     }
 130     // this event is for solver update, not here, do not react immediately
 131     if (!isOnlyResults && !(theMessage->eventID() == kMovedEvent))
 132       processOperation(false);
 133   } else if (theMessage->eventID() == kOpFinishEvent || theMessage->eventID() == kOpAbortEvent ||
 134       theMessage->eventID() == kOpStartEvent) {
 135
 136     if (!(theMessage->eventID() == kOpStartEvent)) {
 137       myIsFinish = true;
 138       processOperation(true, theMessage->eventID() == kOpFinishEvent);
 139       myIsFinish = false;
 140     }
 141     // remove all macros before clearing all created
 142     std::set<ObjectPtr>::iterator anUpdatedIter = myWaitForFinish.begin();
 143     while(anUpdatedIter != myWaitForFinish.end()) {
 144       FeaturePtr aFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(*anUpdatedIter);
 145       if (aFeature.get()) {
 146         // remove macro on finish
 147         if (aFeature->isMacro()) {
 148           aFeature->document()->removeFeature(aFeature);
 149           myWaitForFinish.erase(aFeature);
 150         }
 151         // to avoid the map update problems on "remove"
 152         if (myWaitForFinish.find(aFeature) == myWaitForFinish.end()) {
 153           anUpdatedIter = myWaitForFinish.begin();
 154         } else {
 155           anUpdatedIter++;
 156         }
 157       } else {
 158         anUpdatedIter++;
 159       }
 160     }
 161     // in the end of transaction everything is updated, so clear the old objects (the only one
 162     // place where results are cleared)
 163     myIsParamUpdated = false;
 164     myUpdated.clear();
 165     myModification = 0;
 166     myWaitForFinish.clear();
 167   }
 168 }
 169
 170 bool Model_Update::iterateUpdate(std::shared_ptr<ModelAPI_CompositeFeature> theFeature)
 171 {
 172   myProcessIterator.push_back(IterationItem(theFeature));
 173   IterationItem& aCurrent = *myProcessIterator.rbegin();
 174   // two cycles: parameters must be processed first
 175   for(aCurrent.startIteration(true); aCurrent.more(); aCurrent.next()) {
 176     if (aCurrent.current()->getKind() == "Parameter")
 177       updateFeature(aCurrent.current());
 178   }
 179   // number of subs can be changed in execution: like fillet
 180   for(aCurrent.startIteration(false); aCurrent.more(); aCurrent.next()) {
 181     FeaturePtr aSub = aCurrent.current();
 182     if (aSub->getKind() != "Parameter")
 183       updateFeature(aSub);
 184   }
 185   // processing is finished, so, remove the iterated
 186   bool aResult = !aCurrent.isBreaked(); // iteration is finished correctly, not breaked
 187   myProcessIterator.pop_back();
 188   return aResult;
 189 }
 190
 191 void Model_Update::iterateUpdateBreak(std::shared_ptr<ModelAPI_Feature> theFeature)
 192 {
 193   // checking that this feature is before the current iterated one: otherwise break is not needed
 194   std::list<IterationItem>::reverse_iterator aProcessed = myProcessIterator.rbegin();
 195   for(; aProcessed != myProcessIterator.rend(); aProcessed++) {
 196     if (aProcessed->isIterated(theFeature)) {
 197       if (aProcessed->isEarlierThanCurrent(theFeature)) {
 198         // break all lower level iterators
 199         std::list<IterationItem>::reverse_iterator aBreaked = myProcessIterator.rbegin();
 200         for(; aBreaked != aProcessed; aBreaked++) {
 201           aBreaked->setBreaked();
 202         }
 203         // for the current breaked, set iteration to this feature precisely
 204         aBreaked->setCurrentBefore(theFeature);
 205         myModification++;
 206       }
 207       // the iterator that contains breaked is found, so, nothing else is needed
 208       return;
 209     }
 210   }
 211   // if this feature is not found in the list of the currently iterated, try to break the parent
 212   FeaturePtr aParent = ModelAPI_Tools::compositeOwner(theFeature);
 213   if (aParent.get())
 214     iterateUpdateBreak(aParent);
 215 }
 216
 217 void Model_Update::processOperation(const bool theTotalUpdate, const bool theFinish)
 218 {
 219   if (theFinish) {
 220     // the hardcode (DBC asked): hide the sketch referenced by extrusion on apply
 221     std::set<std::shared_ptr<ModelAPI_Object> >::iterator aFIter;
 222     for(aFIter = myWaitForFinish.begin(); aFIter != myWaitForFinish.end(); aFIter++)
 223     {
 224       FeaturePtr aF = std::dynamic_pointer_cast<ModelAPI_Feature>(*aFIter);
 225       if (aF && aF->data()->isValid() && aF->getKind() == "Extrusion") {
 226         AttributeSelectionListPtr aBase = aF->selectionList("base");
 227         if (aBase.get()) {
 228           for(int a = aBase->size() - 1; a >= 0; a--) {
 229             ResultPtr aSketchRes = aBase->value(a)->context();
 230             if (aSketchRes) {
 231               aSketchRes->setDisplayed(false);
 232             }
 233           }
 234         }
 235       }
 236     }
 237   }
 238   // perform update of everything if needed
 239   if (!myIsExecuted) {
 240     #ifdef DEB_UPDATE
 241       std::cout<<"****** Start processing"<<std::endl;
 242     #endif
 243     myIsExecuted = true;
 244
 245     bool isAutomaticChanged = false;
 246
 247     if (theTotalUpdate && !myIsAutomatic) { // Apply button now works as "Rebuild"
 248       isAutomaticChanged = true;
 249       myIsAutomatic = true;
 250     }
 251     // init iteration from the root document
 252     iterateUpdate(CompositeFeaturePtr());
 253
 254     if (isAutomaticChanged) myIsAutomatic = false;
 255     myIsExecuted = false;
 256     myModification++;
 257
 258     // flush to update display
 259     static Events_Loop* aLoop = Events_Loop::loop();
 260     static Events_ID EVENT_DISP = aLoop->eventByName(EVENT_OBJECT_TO_REDISPLAY);
 261     aLoop->flush(EVENT_DISP);
 262     #ifdef DEB_UPDATE
 263       std::cout<<"****** End processing"<<std::endl;
 264     #endif
 265   }
 266 }
 267
 268 void Model_Update::updateFeature(FeaturePtr theFeature)
 269 {
 270   // check all features this feature depended on (recursive call of updateFeature)
 271   static ModelAPI_ValidatorsFactory* aFactory = ModelAPI_Session::get()->validators();
 272
 273   if (theFeature->isDisabled())
 274     return;
 275
 276   #ifdef DEB_UPDATE
 277     //std::cout<<"Update Feature "<<theFeature->name()<<std::endl;
 278   #endif
 279   CompositeFeaturePtr aCompos = std::dynamic_pointer_cast<ModelAPI_CompositeFeature>(theFeature);
 280   // If automatice update is not needed and feature attributes were not updated right now,
 281   // do not execute it and do not update arguments.
 282   if (!myIsAutomatic &&
 283        (myUpdated.find(theFeature) == myUpdated.end() || myUpdated[theFeature] != myModification)
 284        && !aCompos.get()) {
 285     // execute will be performed later, but some features may have not-result
 286     // presentations, so call update for them (like coincidence in the sketcher)
 287     static Events_ID EVENT_DISP = Events_Loop::loop()->eventByName(EVENT_OBJECT_TO_REDISPLAY);
 288     ModelAPI_EventCreator::get()->sendUpdated(theFeature, EVENT_DISP);
 289     return;
 290   }
 291
 292   // Update selection and parameters attributes first, before sub-features analysis (sketch plane).
 293   updateArguments(theFeature);
 294
 295   // composite feature must be executed after sub-features execution
 296   if (aCompos) {
 297     if (!iterateUpdate(aCompos))
 298       return; // iteration was interrupted, so, interrupt the update of this feature (it will be done later)
 299     // reupdate arguments of composite feature: it may be changed during subs execution
 300     if (theFeature->data()->execState() != ModelAPI_StateMustBeUpdated)
 301       updateArguments(theFeature);
 302   }
 303   // this checking must be after the composite feature sub-elements processing:
 304   // composite feature status may depend on it's subelements
 305   if (theFeature->data()->execState() == ModelAPI_StateInvalidArgument) {
 306     theFeature->eraseResults();
 307     redisplayWithResults(theFeature, ModelAPI_StateInvalidArgument); // result also must be updated
 308     return;
 309   }
 310
 311   // only the currently updated features are executed
 312   bool aJustUpdated = myUpdated.find(theFeature) != myUpdated.end() && myUpdated[theFeature] == myModification;
 313
 314   if (myIsAutomatic && theFeature->data()->execState() == ModelAPI_StateMustBeUpdated)
 315     aJustUpdated = true;
 316
 317   // On abort, undo or redo execute is not needed: results in document are updated automatically
 318   // But redisplay is needed: results are updated, must be also updated in the viewer.
 319   if (aJustUpdated &&
 320       !std::dynamic_pointer_cast<Model_Document>(theFeature->document())->executeFeatures()) {
 321     if (!theFeature->isPersistentResult()) { // not persistent must be re-executed on abort, etc.
 322       ModelAPI_ExecState aState = theFeature->data()->execState();
 323       if (aFactory->validate(theFeature)) {
 324         executeFeature(theFeature);
 325       } else {
 326         theFeature->eraseResults();
 327         redisplayWithResults(theFeature, ModelAPI_StateInvalidArgument); // result also must be updated
 328       }
 329     } else {
 330       redisplayWithResults(theFeature, ModelAPI_StateNothing);
 331       if (theFeature->data()->execState() == ModelAPI_StateMustBeUpdated) { // it is done (in the tree)
 332         theFeature->data()->execState(ModelAPI_StateDone);
 333       }
 334       // it will be not updated with new modifications: only the currently updated features are updated
 335       //if (myUpdated.find(theFeature) != myUpdated.end()) {
 336       //  myUpdated.erase(theFeature); // do not update this persistent feature even in the future
 337       //}
 338     }
 339     return;
 340   }
 341
 342   // execute feature if it must be updated
 343   if (theFeature->isPreviewNeeded() || myIsFinish) {
 344     if (aJustUpdated) {
 345       ModelAPI_ExecState aState = theFeature->data()->execState();
 346       if (aFactory->validate(theFeature)) {
 347         #ifdef DEB_UPDATE
 348           std::cout<<"Execute Feature "<<theFeature->name()<<std::endl;
 349         #endif
 350         executeFeature(theFeature);
 351       } else {
 352         theFeature->eraseResults();
 353         redisplayWithResults(theFeature, ModelAPI_StateInvalidArgument); // result also must be updated
 354       }
 355     }
 356   } else { // preview is not needed => make state Done
 357     if (theFeature->data()->execState() == ModelAPI_StateMustBeUpdated) {
 358       theFeature->data()->execState(ModelAPI_StateDone);
 359       if (aJustUpdated) // store that it must be updated on finish
 360         myUpdated[theFeature] = myModification;
 361     }
 362   }
 363 }
 364
 365 void Model_Update::redisplayWithResults(FeaturePtr theFeature, const ModelAPI_ExecState theState)
 366 {
 367   // make updated and redisplay all results
 368   static Events_ID EVENT_DISP = Events_Loop::loop()->eventByName(EVENT_OBJECT_TO_REDISPLAY);
 369   const std::list<std::shared_ptr<ModelAPI_Result> >& aResults = theFeature->results();
 370   std::list<std::shared_ptr<ModelAPI_Result> >::const_iterator aRIter = aResults.begin();
 371   for (; aRIter != aResults.cend(); aRIter++) {
 372     std::shared_ptr<ModelAPI_Result> aRes = *aRIter;
 373     if (!aRes->isDisabled()) {// update state only for enabled results (Placement Result Part may make the original Part Result as invalid)
 374       aRes->data()->execState(theState);
 375       if (theState == ModelAPI_StateDone) // feature become "done", so execution changed results
 376         myUpdated[aRes] = myModification;
 377     }
 378     if (theFeature->data()->updateID() > aRes->data()->updateID()) {
 379       aRes->data()->setUpdateID(theFeature->data()->updateID());
 380     }
 381     ModelAPI_EventCreator::get()->sendUpdated(aRes, EVENT_DISP);
 382   }
 383   // to redisplay "presentable" feature (for ex. distance constraint)
 384   ModelAPI_EventCreator::get()->sendUpdated(theFeature, EVENT_DISP);
 385   theFeature->data()->execState(theState);
 386 }
 387
 388 /// Updates the state by the referenced object: if something bad with it, set state for this one
 389 ModelAPI_ExecState stateByReference(ObjectPtr theTarget, const ModelAPI_ExecState theCurrent)
 390 {
 391   if (theTarget) {
 392     ModelAPI_ExecState aRefState = theTarget->data()->execState();
 393     if (aRefState == ModelAPI_StateMustBeUpdated) {
 394       if (theCurrent == ModelAPI_StateDone)
 395         return ModelAPI_StateMustBeUpdated;
 396     } else if (aRefState != ModelAPI_StateDone) {
 397       return ModelAPI_StateInvalidArgument;
 398     }
 399   }
 400   return theCurrent;
 401 }
 402
 403 bool Model_Update::isOlder(std::shared_ptr<ModelAPI_Feature> theFeature,
 404                            std::shared_ptr<ModelAPI_Object> theArgument)
 405 {
 406   int aFeatureID = theFeature->data()->updateID();
 407   int anArgID = theArgument->data()->updateID();
 408   if (aFeatureID < anArgID)
 409     return true;
 410   std::map<std::shared_ptr<ModelAPI_Object>, int >::iterator anAIter = myUpdated.find(theArgument);
 411   if (anAIter == myUpdated.end())
 412     return false;
 413   std::map<std::shared_ptr<ModelAPI_Object>, int >::iterator aFIter = myUpdated.find(theFeature);
 414   if (aFIter == myUpdated.end())
 415     return true; // argument is updated, but feature is not updated at all
 416   return aFIter->second < anAIter->second;
 417 }
 418
 419 void Model_Update::updateArguments(FeaturePtr theFeature) {
 420   // perform this method also for disabled features: to make "not done" state for
 421   // features referenced to the active and modified features
 422
 423   static ModelAPI_ValidatorsFactory* aFactory = ModelAPI_Session::get()->validators();
 424
 425   ModelAPI_ExecState aState = theFeature->data()->execState();
 426   if (aState == ModelAPI_StateExecFailed) { // try again failed feature: issue 577
 427     aState = ModelAPI_StateMustBeUpdated;
 428   }
 429   if (aState == ModelAPI_StateInvalidArgument) // a chance to be corrected
 430     aState = ModelAPI_StateMustBeUpdated;
 431   // check the parameters state
 432   // Double
 433   std::list<AttributePtr> aDoubles =
 434     theFeature->data()->attributes(ModelAPI_AttributeDouble::typeId());
 435   std::list<AttributePtr>::iterator aDoubleIter = aDoubles.begin();
 436   for(; aDoubleIter != aDoubles.end(); aDoubleIter++) {
 437     AttributeDoublePtr aDouble =
 438       std::dynamic_pointer_cast<ModelAPI_AttributeDouble>(*aDoubleIter);
 439     if (aDouble.get() && !aDouble->text().empty()) {
 440       if (myIsParamUpdated) {
 441         ModelAPI_AttributeEvalMessage::send(aDouble, this);
 442       }
 443       if (aDouble->expressionInvalid()) {
 444         aState = ModelAPI_StateInvalidArgument;
 445       }
 446     }
 447   }
 448   // Point
 449   {
 450     std::list<AttributePtr> anAttributes =
 451       theFeature->data()->attributes(GeomDataAPI_Point::typeId());
 452     std::list<AttributePtr>::iterator anIter = anAttributes.begin();
 453     for(; anIter != anAttributes.end(); anIter++) {
 454       AttributePointPtr aPointAttribute =
 455         std::dynamic_pointer_cast<GeomDataAPI_Point>(*anIter);
 456       if (aPointAttribute.get()) {
 457         if (myIsParamUpdated) {
 458           ModelAPI_AttributeEvalMessage::send(aPointAttribute, this);
 459         }
 460         if ((!aPointAttribute->textX().empty() && aPointAttribute->expressionInvalid(0)) ||
 461           (!aPointAttribute->textY().empty() && aPointAttribute->expressionInvalid(1)) ||
 462           (!aPointAttribute->textZ().empty() && aPointAttribute->expressionInvalid(2)))
 463           aState = ModelAPI_StateInvalidArgument;
 464       }
 465     }
 466   }
 467   // Point2D
 468   {
 469     std::list<AttributePtr> anAttributes =
 470       theFeature->data()->attributes(GeomDataAPI_Point2D::typeId());
 471     std::list<AttributePtr>::iterator anIter = anAttributes.begin();
 472     for(; anIter != anAttributes.end(); anIter++) {
 473       AttributePoint2DPtr aPoint2DAttribute =
 474         std::dynamic_pointer_cast<GeomDataAPI_Point2D>(*anIter);
 475       if (aPoint2DAttribute.get()) {
 476         if (myIsParamUpdated) {
 477           ModelAPI_AttributeEvalMessage::send(aPoint2DAttribute, this);
 478         }
 479         if ((!aPoint2DAttribute->textX().empty() && aPoint2DAttribute->expressionInvalid(0)) ||
 480           (!aPoint2DAttribute->textY().empty() && aPoint2DAttribute->expressionInvalid(1)))
 481           aState = ModelAPI_StateInvalidArgument;
 482       }
 483     }
 484   }
 485
 486   //if (aState == ModelAPI_StateDone) {// all referenced objects are ready to be used
 487   //std::cout<<"Execute feature "<<theFeature->getKind()<<std::endl;
 488   // before execution update the selection attributes if any
 489   list<AttributePtr> aRefs =
 490     theFeature->data()->attributes(ModelAPI_AttributeSelection::typeId());
 491   list<AttributePtr>::iterator aRefsIter = aRefs.begin();
 492   for (; aRefsIter != aRefs.end(); aRefsIter++) {
 493     std::shared_ptr<ModelAPI_AttributeSelection> aSel =
 494       std::dynamic_pointer_cast<ModelAPI_AttributeSelection>(*aRefsIter);
 495     ObjectPtr aContext = aSel->context();
 496     // update argument only if the referenced object is changed
 497     if (aContext.get() && !aContext->isDisabled()) {
 498       bool isObligatory = !aFactory->isNotObligatory(
 499         theFeature->getKind(), theFeature->data()->id(aSel)) &&
 500         aFactory->isCase(theFeature, theFeature->data()->id(aSel));
 501       if (isOlder(theFeature, aContext)) {
 502         if (aState == ModelAPI_StateDone)
 503           aState = ModelAPI_StateMustBeUpdated;
 504         if (!aSel->update()) { // this must be done on execution since it may be long operation
 505           if (isObligatory)
 506             aState = ModelAPI_StateInvalidArgument;
 507         }
 508       } else if (aSel->isInvalid()) { // not needed to update, but invalid (stated previously)
 509         aState = ModelAPI_StateInvalidArgument;
 510       }
 511     }
 512   }
 513   aRefs = theFeature->data()->attributes(ModelAPI_AttributeSelectionList::typeId());
 514   for (aRefsIter = aRefs.begin(); aRefsIter != aRefs.end(); aRefsIter++) {
 515     std::shared_ptr<ModelAPI_AttributeSelectionList> aSel =
 516       std::dynamic_pointer_cast<ModelAPI_AttributeSelectionList>(*aRefsIter);
 517     for(int a = aSel->size() - 1; a >= 0; a--) {
 518       std::shared_ptr<ModelAPI_AttributeSelection> aSelAttr =
 519         std::dynamic_pointer_cast<ModelAPI_AttributeSelection>(aSel->value(a));
 520       if (aSelAttr) {
 521         ObjectPtr aContext = aSelAttr->context();
 522         // update argument onlt if the referenced object is changed
 523         if (aContext.get() && !aContext->isDisabled()) {
 524           bool isObligatory = !aFactory->isNotObligatory(
 525             theFeature->getKind(), theFeature->data()->id(aSel)) &&
 526             aFactory->isCase(theFeature, theFeature->data()->id(aSel));
 527           if (isOlder(theFeature, aContext)) {
 528             if (aState == ModelAPI_StateDone)
 529                 aState = ModelAPI_StateMustBeUpdated;
 530             if (!aSelAttr->update()) {
 531               if (isObligatory)
 532                 aState = ModelAPI_StateInvalidArgument;
 533             }
 534           } else if (aSelAttr->isInvalid()) {
 535             aState = ModelAPI_StateInvalidArgument;
 536           }
 537         }
 538       }
 539     }
 540   }
 541   // check all references: if referenced objects are updated, this object also must be updated
 542   // also check state of referenced objects: if they are not ready, inherit corresponding state
 543   std::list<std::pair<std::string, std::list<ObjectPtr> > > aRefsObj;
 544   std::shared_ptr<Model_Data> aData = std::dynamic_pointer_cast<Model_Data>(theFeature->data());
 545   aData->referencesToObjects(aRefsObj);
 546   std::list<std::pair<std::string, std::list<ObjectPtr> > >::iterator aRef = aRefsObj.begin();
 547   for(; aRef != aRefsObj.end(); aRef++) {
 548     std::list<ObjectPtr>::iterator aRefObj = aRef->second.begin();
 549     for(; aRefObj != aRef->second.end(); aRefObj++) {
 550       // if reference is null, it may mean that this reference is to other document
 551       // the does not supported by RefList: parameters may be recomputed
 552       if (!aRefObj->get() && theFeature->firstResult().get() &&
 553                theFeature->firstResult()->groupName() == ModelAPI_ResultParameter::group()) {
 554           if (aState == ModelAPI_StateDone)
 555             aState = ModelAPI_StateMustBeUpdated;
 556       } else if (aRefObj->get() && isOlder(theFeature, *aRefObj)) {
 557         if (aState == ModelAPI_StateDone)
 558           aState = ModelAPI_StateMustBeUpdated;
 559       }
 560       aState = stateByReference(*aRefObj, aState);
 561     }
 562   }
 563   // composites sub-elements
 564   CompositeFeaturePtr aCompos = std::dynamic_pointer_cast<ModelAPI_CompositeFeature>(theFeature);
 565   // composite feature must be executed after sub-features execution
 566   if (aCompos) {
 567     // number of subs can be changed in execution: like fillet
 568     for(int a = 0; a < aCompos->numberOfSubs(); a++) {
 569       FeaturePtr aSub = aCompos->subFeature(a);
 570       if (aSub.get() && aState == ModelAPI_StateDone) {
 571         if (isOlder(theFeature, aSub)) {
 572           aState = ModelAPI_StateMustBeUpdated;
 573         }
 574         // also check that all results of subs were updated: composite also depends on the results
 575         const std::list<std::shared_ptr<ModelAPI_Result> >& aResults = aSub->results();
 576         std::list<std::shared_ptr<ModelAPI_Result> >::const_iterator aResIter = aResults.begin();
 577         for(; aResIter != aResults.end(); aResIter++) {
 578           if (aResIter->get() && (*aResIter)->data()->isValid() && !(*aResIter)->isDisabled() &&
 579               isOlder(theFeature, *aResIter)) {
 580             aState = ModelAPI_StateMustBeUpdated;
 581           }
 582         }
 583       }
 584     }
 585   }
 586
 587
 588   if (aState != ModelAPI_StateDone)
 589     theFeature->data()->execState(aState);
 590 }
 591
 592 void Model_Update::executeFeature(FeaturePtr theFeature)
 593 {
 594   // execute in try-catch to avoid internal problems of the feature
 595   ModelAPI_ExecState aState = ModelAPI_StateDone;
 596   theFeature->data()->execState(ModelAPI_StateDone);
 597   try {
 598     theFeature->execute();
 599     if (theFeature->data()->execState() != ModelAPI_StateDone) {
 600       aState = ModelAPI_StateExecFailed;
 601     } else {
 602       aState = ModelAPI_StateDone;
 603       myWaitForFinish.insert(theFeature);
 604     }
 605   } catch(...) {
 606     aState = ModelAPI_StateExecFailed;
 607     Events_Error::send(
 608       "Feature " + theFeature->getKind() + " has failed during the execution");
 609   }
 610   if (aState != ModelAPI_StateDone) {
 611     theFeature->eraseResults();
 612   }
 613   theFeature->data()->setUpdateID(ModelAPI_Session::get()->transactionID());
 614   redisplayWithResults(theFeature, aState);
 615 }
 616
 617 ///////////////// Updated items iterator ////////////////////////
 618 Model_Update::IterationItem::IterationItem(std::shared_ptr<ModelAPI_CompositeFeature> theFeature)
 619 {
 620   myBreaked = false;
 621   myIsVirtual = false;
 622   myMain = theFeature;
 623   myObjects = NULL;
 624   if (!myMain.get() && ModelAPI_Session::get()->hasModuleDocument()) { // no document => nothing to do
 625     DocumentPtr aRootDoc = ModelAPI_Session::get()->moduleDocument();
 626     myObjects = std::dynamic_pointer_cast<Model_Document>(aRootDoc)->objects();
 627   }
 628   mySkipNext = false;
 629 }
 630
 631 void Model_Update::IterationItem::next()
 632 {
 633   if (mySkipNext) { // ignore one next
 634     mySkipNext = false;
 635     return;
 636   }
 637   if (!myBreaked) {
 638     if (myMain.get()) {
 639       myIndex++;
 640       int aNumSubs = myMain->numberOfSubs();
 641       if (myIndex == aNumSubs)
 642         return;
 643       // skip sub-objects, that are subs not only for this: sketch elements relatively to Part
 644       for(FeaturePtr aSub = myMain->subFeature(myIndex); aSub.get();
 645           aSub = myMain->subFeature(myIndex)) {
 646         aSub = myMain->subFeature(myIndex);
 647         CompositeFeaturePtr anOwner = ModelAPI_Tools::compositeOwner(aSub);
 648         if (!anOwner.get() || anOwner == myMain) {
 649           break;
 650         }
 651         myIndex++;
 652         if (myIndex == aNumSubs)
 653           break;
 654       }
 655     } else if (mySub.get()) {
 656       mySub = myObjects->nextFeature(mySub);
 657     }
 658   }
 659 }
 660
 661 bool Model_Update::IterationItem::more()
 662 {
 663   if (myBreaked)
 664     return false;
 665   if (myMain.get())
 666     return myIndex < myMain->numberOfSubs();
 667   return mySub.get() != NULL;
 668 }
 669
 670 FeaturePtr Model_Update::IterationItem::current()
 671 {
 672   if (myMain.get())
 673     return myMain->subFeature(myIndex);
 674   return mySub;
 675 }
 676
 677 void Model_Update::IterationItem::setBreaked()
 678 {
 679   if (!myIsVirtual)
 680     myBreaked = true;
 681 }
 682
 683 void Model_Update::IterationItem::startIteration(const bool theVirtual)
 684 {
 685   myIsVirtual = theVirtual;
 686   if (myMain.get()) {
 687     myIndex = 0;
 688   } else if (myObjects) {
 689     mySub = myObjects->firstFeature();
 690   }
 691 }
 692
 693 bool Model_Update::IterationItem::isIterated(FeaturePtr theFeature)
 694 {
 695   if (myMain.get()) {
 696     if (myMain->isSub(theFeature)) {
 697       CompositeFeaturePtr anOwner = ModelAPI_Tools::compositeOwner(theFeature);
 698       if (!anOwner.get() || anOwner == myMain)
 699         return true;
 700     }
 701     return false;
 702   }
 703   // for the root document just check that this feature in this document and it is not sub
 704   return myObjects->owner() == theFeature->document() &&
 705          !ModelAPI_Tools::compositeOwner(theFeature).get();
 706 }
 707
 708 bool Model_Update::IterationItem::isEarlierThanCurrent(FeaturePtr theFeature)
 709 {
 710   if (myMain.get()) {
 711     for(int a = 0; a < myIndex; a++) {
 712       if (myMain->subFeature(a) == theFeature)
 713         return true;
 714     }
 715   } else {
 716     return !mySub.get() && !myObjects->isLater(theFeature, mySub);
 717   }
 718   return false;
 719 }
 720
 721 void Model_Update::IterationItem::setCurrentBefore(FeaturePtr theFeature)
 722 {
 723   if (myMain.get()) {
 724     for(int a = 0; a < myIndex; a++) {
 725       if (myMain->subFeature(a) == theFeature) {
 726         myIndex = a;
 727         break;
 728       }
 729     }
 730   } else {
 731     mySub = theFeature;
 732   }
 733   mySkipNext = true;
 734 }