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 kCreatedEvent = Events_Loop::loop()->eventByName(EVENT_OBJECT_CREATED);
  44   aLoop->registerListener(this, kCreatedEvent);
  45   static const Events_ID kUpdatedEvent = Events_Loop::loop()->eventByName(EVENT_OBJECT_UPDATED);
  46   aLoop->registerListener(this, kUpdatedEvent);
  47   static const Events_ID kOpFinishEvent = aLoop->eventByName("FinishOperation");
  48   aLoop->registerListener(this, kOpFinishEvent);
  49   static const Events_ID kOpAbortEvent = aLoop->eventByName("AbortOperation");
  50   aLoop->registerListener(this, kOpAbortEvent);
  51   static const Events_ID kOpStartEvent = aLoop->eventByName("StartOperation");
  52   aLoop->registerListener(this, kOpStartEvent);
  53   static const Events_ID kStabilityEvent = aLoop->eventByName(EVENT_STABILITY_CHANGED);
  54   aLoop->registerListener(this, kStabilityEvent);
  55   static const Events_ID kPreviewBlockedEvent = aLoop->eventByName(EVENT_PREVIEW_BLOCKED);
  56   aLoop->registerListener(this, kPreviewBlockedEvent);
  57   static const Events_ID kPreviewRequestedEvent = aLoop->eventByName(EVENT_PREVIEW_REQUESTED);
  58   aLoop->registerListener(this, kPreviewRequestedEvent);
  59
  60   //  Config_PropManager::findProp("Model update", "automatic_rebuild")->value() == "true";
  61   myIsParamUpdated = false;
  62   myIsFinish = false;
  63   myIsProcessed = false;
  64   myIsPreviewBlocked = false;
  65 }
  66
  67 bool Model_Update::addModified(FeaturePtr theFeature, FeaturePtr theReason) {
  68
  69   if (!theFeature->data()->isValid())
  70     return false; // delete an extrusion created on the sketch
  71
  72   if (theFeature->isPersistentResult()) {
  73     if (!std::dynamic_pointer_cast<Model_Document>((theFeature)->document())->executeFeatures())
  74       return false;
  75   }
  76
  77   // update arguments for "apply button" state change
  78   if ((!theFeature->isPreviewNeeded() && !myIsFinish) || myIsPreviewBlocked) {
  79     myProcessOnFinish.insert(theFeature);
  80 #ifdef DEB_UPDATE
  81       std::cout<<"*** Add process on finish "<<theFeature->name()<<std::endl;
  82 #endif
  83     updateArguments(theFeature);
  84     if (theFeature->data()->execState() == ModelAPI_StateMustBeUpdated) {
  85       theFeature->data()->execState(ModelAPI_StateDone);
  86       static ModelAPI_ValidatorsFactory* aFactory = ModelAPI_Session::get()->validators();
  87       aFactory->validate(theFeature); // need to be validated to update the "Apply" state if not previewed
  88     }
  89     if (!myIsPreviewBlocked)
  90       return true;
  91   }
  92   if (myModified.find(theFeature) != myModified.end()) {
  93     if (theReason.get()) {
  94 #ifdef DEB_UPDATE
  95       std::cout<<"*** Add already modified "<<theFeature->name()<<std::endl;
  96 #endif
  97       myModified[theFeature].insert(theReason);
  98     }
  99     return true;
 100   }
 101   // do not add the disabled, but possibly the sub-elements are not disabled
 102   bool aIsDisabled = theFeature->isDisabled();
 103   if (!aIsDisabled) {
 104     std::set<std::shared_ptr<ModelAPI_Feature> > aNewSet;
 105     if (theFeature->data()->execState() == ModelAPI_StateMustBeUpdated) {
 106       // do not forget that in this case all were the reasons
 107       aNewSet.insert(theFeature);
 108     } else {
 109       if (theReason.get())
 110         aNewSet.insert(theReason);
 111     }
 112     myModified[theFeature] = aNewSet;
 113 #ifdef DEB_UPDATE
 114     std::cout<<"*** Add modified "<<theFeature->name()<<std::endl;
 115 #endif
 116   } else { // will be updated during the finish of the operation, or when it becomes enabled
 117     if (theFeature->data()->execState() == ModelAPI_StateDone)
 118       theFeature->data()->execState(ModelAPI_StateMustBeUpdated);
 119     else
 120       return true; // do not need iteration deeply if it is already marked as modified or so
 121 #ifdef DEB_UPDATE
 122     std::cout<<"*** Set modified state "<<theFeature->name()<<std::endl;
 123 #endif
 124   }
 125   // clear processed and fill modified recursively
 126   const std::set<std::shared_ptr<ModelAPI_Attribute> >& aRefs = theFeature->data()->refsToMe();
 127   std::set<std::shared_ptr<ModelAPI_Attribute> >::const_iterator aRefIter = aRefs.cbegin();
 128   for(; aRefIter != aRefs.cend(); aRefIter++) {
 129     FeaturePtr aReferenced = std::dynamic_pointer_cast<ModelAPI_Feature>((*aRefIter)->owner());
 130     if (aReferenced.get()) {
 131       addModified(aReferenced, theFeature);
 132     }
 133   }
 134   // proccess also results
 135   std::list<ResultPtr> allResults; // list of this feature and results
 136   ModelAPI_Tools::allResults(theFeature, allResults);
 137   std::list<ResultPtr>::iterator aRes = allResults.begin();
 138   for(; aRes != allResults.end(); aRes++) {
 139     const std::set<std::shared_ptr<ModelAPI_Attribute> >& aRefs = (*aRes)->data()->refsToMe();
 140     std::set<std::shared_ptr<ModelAPI_Attribute> >::const_iterator aRefIter = aRefs.cbegin();
 141     for(; aRefIter != aRefs.cend(); aRefIter++) {
 142       FeaturePtr aReferenced = std::dynamic_pointer_cast<ModelAPI_Feature>((*aRefIter)->owner());
 143       if (aReferenced.get()) {
 144         addModified(aReferenced, theFeature);
 145       }
 146     }
 147   }
 148
 149   // also add part feature that contains this feature to the modified
 150   if (theFeature->document()->kind() != "PartSet") {
 151     FeaturePtr aPart = ModelAPI_Tools::findPartFeature(
 152       ModelAPI_Session::get()->moduleDocument(), theFeature->document());
 153     if (aPart.get())
 154       addModified(aPart, theFeature);
 155   }
 156   return true;
 157 }
 158
 159 void Model_Update::processEvent(const std::shared_ptr<Events_Message>& theMessage)
 160 {
 161   static Events_Loop* aLoop = Events_Loop::loop();
 162   static const Events_ID kCreatedEvent = aLoop->eventByName(EVENT_OBJECT_CREATED);
 163   static const Events_ID kUpdatedEvent = aLoop->eventByName(EVENT_OBJECT_UPDATED);
 164   static const Events_ID kOpFinishEvent = aLoop->eventByName("FinishOperation");
 165   static const Events_ID kOpAbortEvent = aLoop->eventByName("AbortOperation");
 166   static const Events_ID kOpStartEvent = aLoop->eventByName("StartOperation");
 167   static const Events_ID kStabilityEvent = aLoop->eventByName(EVENT_STABILITY_CHANGED);
 168   static const Events_ID kPreviewBlockedEvent = aLoop->eventByName(EVENT_PREVIEW_BLOCKED);
 169   static const Events_ID kPreviewRequestedEvent = aLoop->eventByName(EVENT_PREVIEW_REQUESTED);
 170
 171 #ifdef DEB_UPDATE
 172   std::cout<<"****** Event "<<theMessage->eventID().eventText()<<std::endl;
 173 #endif
 174   if (theMessage->eventID() == kStabilityEvent) {
 175     updateStability(theMessage->sender());
 176     return;
 177   }
 178   if (theMessage->eventID() == kPreviewBlockedEvent) {
 179     myIsPreviewBlocked = true;
 180     return;
 181   }
 182   if (theMessage->eventID() == kPreviewRequestedEvent) {
 183     if (myIsPreviewBlocked) {
 184       myIsPreviewBlocked = false;
 185       processFeatures();
 186       myIsPreviewBlocked = true;
 187     }
 188     return;
 189   }
 190   // creation is added to "update" to avoid recomputation twice: on create and immediately after on update
 191   if (theMessage->eventID() == kCreatedEvent) {
 192     std::shared_ptr<ModelAPI_ObjectUpdatedMessage> aMsg =
 193         std::dynamic_pointer_cast<ModelAPI_ObjectUpdatedMessage>(theMessage);
 194     const std::set<ObjectPtr>& anObjs = aMsg->objects();
 195     std::set<ObjectPtr>::const_iterator anObjIter = anObjs.cbegin();
 196     for(; anObjIter != anObjs.cend(); anObjIter++) {
 197       if (std::dynamic_pointer_cast<Model_Document>((*anObjIter)->document())->executeFeatures())
 198         ModelAPI_EventCreator::get()->sendUpdated(*anObjIter, kUpdatedEvent);
 199     }
 200     return;
 201   }
 202   if (theMessage->eventID() == kUpdatedEvent) {
 203     std::shared_ptr<ModelAPI_ObjectUpdatedMessage> aMsg =
 204         std::dynamic_pointer_cast<ModelAPI_ObjectUpdatedMessage>(theMessage);
 205     const std::set<ObjectPtr>& anObjs = aMsg->objects();
 206     std::set<ObjectPtr>::const_iterator anObjIter = anObjs.cbegin();
 207     bool aSomeModified = false; // check that features not changed: only redisplay is needed
 208     for(; anObjIter != anObjs.cend(); anObjIter++) {
 209       if (!(*anObjIter)->data()->isValid())
 210         continue;
 211 #ifdef DEB_UPDATE
 212       std::cout<<">>> in event updated "<<(*anObjIter)->data()->name()<<std::endl;
 213 #endif
 214       if ((*anObjIter)->groupName() == ModelAPI_ResultParameter::group()) {
 215         myIsParamUpdated = true;
 216       }
 217       // on undo/redo, abort do not update persisten features
 218       FeaturePtr anUpdated = std::dynamic_pointer_cast<ModelAPI_Feature>(*anObjIter);
 219       if (anUpdated.get()) {
 220         if (addModified(anUpdated, FeaturePtr()))
 221           aSomeModified = true;
 222       } else { // process the updated result as update of features that refers to this result
 223         const std::set<std::shared_ptr<ModelAPI_Attribute> >& aRefs = (*anObjIter)->data()->refsToMe();
 224         std::set<std::shared_ptr<ModelAPI_Attribute> >::const_iterator aRefIter = aRefs.cbegin();
 225         for(; aRefIter != aRefs.cend(); aRefIter++) {
 226           if (!(*aRefIter)->owner()->data()->isValid())
 227             continue;
 228           FeaturePtr anUpdated = std::dynamic_pointer_cast<ModelAPI_Feature>((*aRefIter)->owner());
 229           if (anUpdated.get()) {
 230             if (addModified(anUpdated, FeaturePtr()))
 231               aSomeModified = true;
 232           }
 233         }
 234       }
 235     }
 236     // this event is for solver update, not here, do not react immediately
 237     if (aSomeModified) {
 238         processFeatures();
 239     }
 240   } else if (theMessage->eventID() == kOpFinishEvent || theMessage->eventID() == kOpAbortEvent ||
 241       theMessage->eventID() == kOpStartEvent) {
 242     myIsPreviewBlocked = false;
 243
 244     if (theMessage->eventID() == kOpFinishEvent) {
 245       myIsFinish = true;
 246       // add features that wait for finish as modified
 247       std::set<std::shared_ptr<ModelAPI_Feature> >::iterator aFeature = myProcessOnFinish.begin();
 248       for(; aFeature != myProcessOnFinish.end(); aFeature++)
 249         if ((*aFeature)->data()->isValid()) // there may be already removed wait for features
 250           addModified(*aFeature, FeaturePtr());
 251       myIsFinish = false;
 252     }
 253     myProcessOnFinish.clear(); // processed features must be only on finish, so clear anyway (to avoid reimport on load)
 254
 255     if (!(theMessage->eventID() == kOpStartEvent)) {
 256       processFeatures(false);
 257     }
 258     // remove all macros before clearing all created
 259     std::set<FeaturePtr>::iterator anUpdatedIter = myWaitForFinish.begin();
 260     while(anUpdatedIter != myWaitForFinish.end()) {
 261       FeaturePtr aFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(*anUpdatedIter);
 262       if (aFeature.get()) {
 263         // remove macro on finish
 264         if (aFeature->isMacro()) {
 265           aFeature->document()->removeFeature(aFeature);
 266           myWaitForFinish.erase(aFeature);
 267         }
 268         // to avoid the map update problems on "remove"
 269         if (myWaitForFinish.find(aFeature) == myWaitForFinish.end()) {
 270           anUpdatedIter = myWaitForFinish.begin();
 271         } else {
 272           anUpdatedIter++;
 273         }
 274       } else {
 275         anUpdatedIter++;
 276       }
 277     }
 278     // the redisplay signal should be flushed in order to erase the feature presentation in the viewer
 279     // if should be done after removeFeature() of document,
 280     // by this reason, upper processFeatures() do not perform this flush
 281     Events_Loop::loop()->flush(Events_Loop::loop()->eventByName(EVENT_OBJECT_TO_REDISPLAY));
 282
 283     // in the end of transaction everything is updated, so clear the old objects
 284     myIsParamUpdated = false;
 285     myWaitForFinish.clear();
 286   }
 287 }
 288
 289 void Model_Update::processFeatures(const bool theFlushRedisplay)
 290 {
 291    // perform update of everything if it is not performed right now or any preview is blocked
 292   if (!myIsProcessed && !myIsPreviewBlocked) {
 293     myIsProcessed = true;
 294     #ifdef DEB_UPDATE
 295       std::cout<<"****** Start processing"<<std::endl;
 296     #endif
 297
 298     while(!myModified.empty()) {
 299       processFeature(myModified.begin()->first);
 300     }
 301     myIsProcessed = false;
 302
 303     // flush updates just before "myModification" increment: to distinguish
 304     // updates by "execute" produced by this updater and other updates, coming outside,
 305     // which are really important for "processEvent" of this updater
 306     static Events_Loop* aLoop = Events_Loop::loop();
 307     static const Events_ID kUpdatedEvent = aLoop->eventByName(EVENT_OBJECT_UPDATED);
 308     aLoop->flush(kUpdatedEvent);
 309
 310     // flush to update display
 311     if (theFlushRedisplay) {
 312       static Events_ID EVENT_DISP = aLoop->eventByName(EVENT_OBJECT_TO_REDISPLAY);
 313       aLoop->flush(EVENT_DISP);
 314     }
 315     #ifdef DEB_UPDATE
 316       std::cout<<"****** End processing"<<std::endl;
 317     #endif
 318     myProcessed.clear();
 319   }
 320 }
 321
 322 bool Model_Update::processFeature(FeaturePtr theFeature)
 323 {
 324   static ModelAPI_ValidatorsFactory* aFactory = ModelAPI_Session::get()->validators();
 325
 326   if (!theFeature->data()->isValid()) { // deleted feature, just remove from all containers
 327     if (myModified.find(theFeature) != myModified.end())
 328       myModified.erase(theFeature);
 329     return false;
 330   }
 331
 332   if (theFeature->isPersistentResult()) {
 333     if (!std::dynamic_pointer_cast<Model_Document>((theFeature)->document())->executeFeatures())
 334       return false;
 335   }
 336
 337   if (myProcessed.find(theFeature) == myProcessed.end()) {
 338     myProcessed[theFeature] = 0;
 339   } else {
 340     int aCount = myProcessed[theFeature];
 341     if (aCount > 100) { // too many repetition of processing (in VS it may crash on 330 with stack overflow)
 342       Events_Error::send(
 343         "Feature '" + theFeature->data()->name() + "' is updtated in infinitive loop");
 344       return false;
 345     }
 346     myProcessed[theFeature] = aCount + 1;
 347   }
 348
 349   // check this feature is not yet checked or processed
 350   bool aIsModified = myModified.find(theFeature) != myModified.end();
 351   if (!aIsModified && myIsFinish) { // get info about the modification for features without preview
 352     if (theFeature->data()->execState() == ModelAPI_StateMustBeUpdated) {
 353       aIsModified = true;
 354       std::set<std::shared_ptr<ModelAPI_Feature> > aNewSet;
 355       aNewSet.insert(theFeature); // contains itself, so, we don't know which was the reason and the reason is any
 356       myModified[theFeature] = aNewSet;
 357     }
 358   }
 359
 360 #ifdef DEB_UPDATE
 361     std::cout<<"* Process feature "<<theFeature->name()<<std::endl;
 362 #endif
 363
 364   // update the sketch plane before the sketch sub-elements are recomputed
 365   // (otherwise sketch will update plane, modify subs, after executed, but with old subs edges)
 366   if (aIsModified && theFeature->getKind() == "Sketch") {
 367 #ifdef DEB_UPDATE
 368     std::cout<<"****** Update sketch args "<<theFeature->name()<<std::endl;
 369 #endif
 370     AttributeSelectionPtr anExtSel = theFeature->selection("External");
 371     if (anExtSel.get()) {
 372       ResultPtr aContext = anExtSel->context();
 373       if (aContext.get() && aContext->document().get()) {
 374         FeaturePtr anExtBase = aContext->document()->feature(aContext);
 375         if (anExtBase.get()) {
 376           processFeature(anExtBase);
 377         }
 378       }
 379     }
 380     updateArguments(theFeature);
 381   }
 382
 383   if (!aIsModified) { // no modification is needed
 384     return false;
 385   }
 386
 387   // evaluate parameter before the sub-elements update: it updates dependencies on evaluation (#1085)
 388   if (theFeature->getKind() == "Parameter") {
 389     theFeature->execute();
 390   }
 391
 392   // check all features this feature depended on (recursive call of updateFeature)
 393   std::set<std::shared_ptr<ModelAPI_Feature> >& aReasons = myModified[theFeature];
 394   if (aReasons.find(theFeature) == aReasons.end()) {
 395     std::set<std::shared_ptr<ModelAPI_Feature> >::iterator aReasonIter = aReasons.begin();
 396     for(; aReasonIter != aReasons.end(); aReasonIter++) {
 397       if (*aReasonIter != theFeature && processFeature(*aReasonIter)) {
 398         aIsModified = true;
 399       }
 400     }
 401   } else { // check all features this feature depended on because here which one was modified is unknown
 402     std::list<std::pair<std::string, std::list<std::shared_ptr<ModelAPI_Object> > > > aDeps;
 403     theFeature->data()->referencesToObjects(aDeps);
 404     std::list<std::pair<std::string, std::list<std::shared_ptr<ModelAPI_Object> > > >::iterator
 405       anAttrsIter = aDeps.begin();
 406     for(; anAttrsIter != aDeps.end(); anAttrsIter++) {
 407       std::list<std::shared_ptr<ModelAPI_Object> >::iterator aDepIter = anAttrsIter->second.begin();
 408       for(; aDepIter != anAttrsIter->second.end(); aDepIter++) {
 409         FeaturePtr aDepFeat = std::dynamic_pointer_cast<ModelAPI_Feature>(*aDepIter);
 410         if (!aDepFeat.get()) { // so, it depends on the result and process the feature owner of it
 411           ResultPtr aDepRes = std::dynamic_pointer_cast<ModelAPI_Result>(*aDepIter);
 412           if (aDepRes.get()) {
 413             aDepFeat = (*aDepIter)->document()->feature(aDepRes);
 414           }
 415         }
 416         if (aDepFeat.get()) {
 417           if (processFeature(aDepFeat))
 418             aIsModified = true;
 419         }
 420       }
 421     }
 422     if (theFeature->getKind() == "Part") { // part is not depended on its subs directly, but subs must be iterated anyway
 423       CompositeFeaturePtr aPart = std::dynamic_pointer_cast<ModelAPI_CompositeFeature>(theFeature);
 424       int aNum = aPart->numberOfSubs();
 425       for(int a = 0; a < aNum; a++) {
 426         FeaturePtr aSub = aPart->subFeature(a);
 427         if (aSub.get()) {
 428           if (processFeature(aSub))
 429             aIsModified = true;
 430         }
 431       }
 432     }
 433   }
 434
 435   // do not execute the composite that contains the current
 436   bool isPostponedMain = false;
 437   CompositeFeaturePtr aCompos = std::dynamic_pointer_cast<ModelAPI_CompositeFeature>(theFeature);
 438   if (theFeature->getKind() == "ExtrusionSketch" && aCompos.get()) {
 439     CompositeFeaturePtr aCurrentOwner =
 440       ModelAPI_Tools::compositeOwner(theFeature->document()->currentFeature(false));
 441     isPostponedMain = aCurrentOwner.get() && aCompos->isSub(aCurrentOwner);
 442   }
 443
 444   #ifdef DEB_UPDATE
 445     std::cout<<"Update args "<<theFeature->name()<<std::endl;
 446   #endif
 447   // Update selection and parameters attributes first, before sub-features analysis (sketch plane).
 448   updateArguments(theFeature);
 449
 450   // add this feature to the processed right now to be able remove it from this list on
 451   // update signal during this feature execution
 452   myModified.erase(theFeature);
 453   if (theFeature->data()->execState() == ModelAPI_StateMustBeUpdated)
 454     theFeature->data()->execState(ModelAPI_StateDone);
 455
 456   // this checking must be after the composite feature sub-elements processing:
 457   // composite feature status may depend on it's subelements
 458   if (theFeature->data()->execState() == ModelAPI_StateInvalidArgument) {
 459   #ifdef DEB_UPDATE
 460     std::cout<<"Invalid args "<<theFeature->name()<<std::endl;
 461   #endif
 462     theFeature->eraseResults();
 463     redisplayWithResults(theFeature, ModelAPI_StateInvalidArgument); // result also must be updated
 464     return true; // so, feature is modified (results are erased)
 465   }
 466
 467   // execute feature if it must be updated
 468   ModelAPI_ExecState aState = theFeature->data()->execState();
 469   if (aFactory->validate(theFeature)) {
 470     if (!isPostponedMain) {
 471       executeFeature(theFeature);
 472     }
 473   } else {
 474     #ifdef DEB_UPDATE
 475       std::cout<<"Feature is not valid, erase results "<<theFeature->name()<<std::endl;
 476     #endif
 477     theFeature->eraseResults();
 478     redisplayWithResults(theFeature, ModelAPI_StateInvalidArgument); // result also must be updated
 479   }
 480   return true;
 481 }
 482
 483 void Model_Update::redisplayWithResults(FeaturePtr theFeature, const ModelAPI_ExecState theState)
 484 {
 485   // make updated and redisplay all results
 486   static Events_ID EVENT_DISP = Events_Loop::loop()->eventByName(EVENT_OBJECT_TO_REDISPLAY);
 487
 488   std::list<ResultPtr> allResults;
 489   ModelAPI_Tools::allResults(theFeature, allResults);
 490   std::list<ResultPtr>::iterator aRIter = allResults.begin();
 491   for (; aRIter != allResults.cend(); aRIter++) {
 492     std::shared_ptr<ModelAPI_Result> aRes = *aRIter;
 493     if (!aRes->isDisabled()) {// update state only for enabled results (Placement Result Part may make the original Part Result as invalid)
 494       aRes->data()->execState(theState);
 495     }
 496     if (theFeature->data()->updateID() > aRes->data()->updateID()) {
 497       aRes->data()->setUpdateID(theFeature->data()->updateID());
 498     }
 499     ModelAPI_EventCreator::get()->sendUpdated(aRes, EVENT_DISP);
 500   }
 501   // to redisplay "presentable" feature (for ex. distance constraint)
 502   ModelAPI_EventCreator::get()->sendUpdated(theFeature, EVENT_DISP);
 503   theFeature->data()->execState(theState);
 504 }
 505
 506 /// Updates the state by the referenced object: if something bad with it, set state for this one
 507 ModelAPI_ExecState stateByReference(ObjectPtr theTarget, const ModelAPI_ExecState theCurrent)
 508 {
 509   if (theTarget) {
 510     ModelAPI_ExecState aRefState = theTarget->data()->execState();
 511     if (aRefState == ModelAPI_StateMustBeUpdated) {
 512       if (theCurrent == ModelAPI_StateDone)
 513         return ModelAPI_StateMustBeUpdated;
 514     } else if (aRefState != ModelAPI_StateDone) {
 515       return ModelAPI_StateInvalidArgument;
 516     }
 517   }
 518   return theCurrent;
 519 }
 520
 521 void Model_Update::updateArguments(FeaturePtr theFeature) {
 522   // perform this method also for disabled features: to make "not done" state for
 523   // features referenced to the active and modified features
 524
 525   static ModelAPI_ValidatorsFactory* aFactory = ModelAPI_Session::get()->validators();
 526
 527   ModelAPI_ExecState aState = theFeature->data()->execState();
 528   if (aState == ModelAPI_StateExecFailed) { // try again failed feature: issue 577
 529     aState = ModelAPI_StateMustBeUpdated;
 530   }
 531   if (aState == ModelAPI_StateInvalidArgument) // a chance to be corrected
 532     aState = ModelAPI_StateMustBeUpdated;
 533   // check the parameters state
 534   // Integer
 535   {
 536     std::list<AttributePtr> anAttrinbutes =
 537       theFeature->data()->attributes(ModelAPI_AttributeInteger::typeId());
 538     std::list<AttributePtr>::iterator anIter = anAttrinbutes.begin();
 539     for(; anIter != anAttrinbutes.end(); anIter++) {
 540       AttributeIntegerPtr anAttribute =
 541         std::dynamic_pointer_cast<ModelAPI_AttributeInteger>(*anIter);
 542       if (anAttribute.get() && !anAttribute->text().empty()) {
 543         if (myIsParamUpdated) {
 544           ModelAPI_AttributeEvalMessage::send(anAttribute, this);
 545         }
 546         if (anAttribute->expressionInvalid()) {
 547           aState = ModelAPI_StateInvalidArgument;
 548         }
 549       }
 550     }
 551   }
 552   // Double
 553   {
 554     std::list<AttributePtr> aDoubles =
 555       theFeature->data()->attributes(ModelAPI_AttributeDouble::typeId());
 556     std::list<AttributePtr>::iterator aDoubleIter = aDoubles.begin();
 557     for(; aDoubleIter != aDoubles.end(); aDoubleIter++) {
 558       AttributeDoublePtr aDouble =
 559         std::dynamic_pointer_cast<ModelAPI_AttributeDouble>(*aDoubleIter);
 560       if (aDouble.get() && !aDouble->text().empty()) {
 561         if (myIsParamUpdated) {
 562           ModelAPI_AttributeEvalMessage::send(aDouble, this);
 563         }
 564         if (aDouble->expressionInvalid()) {
 565           aState = ModelAPI_StateInvalidArgument;
 566         }
 567       }
 568     }
 569   }
 570   // Point
 571   {
 572     std::list<AttributePtr> anAttributes =
 573       theFeature->data()->attributes(GeomDataAPI_Point::typeId());
 574     std::list<AttributePtr>::iterator anIter = anAttributes.begin();
 575     for(; anIter != anAttributes.end(); anIter++) {
 576       AttributePointPtr aPointAttribute =
 577         std::dynamic_pointer_cast<GeomDataAPI_Point>(*anIter);
 578       if (aPointAttribute.get()) {
 579         if (myIsParamUpdated) {
 580           ModelAPI_AttributeEvalMessage::send(aPointAttribute, this);
 581         }
 582         if ((!aPointAttribute->textX().empty() && aPointAttribute->expressionInvalid(0)) ||
 583           (!aPointAttribute->textY().empty() && aPointAttribute->expressionInvalid(1)) ||
 584           (!aPointAttribute->textZ().empty() && aPointAttribute->expressionInvalid(2)))
 585           aState = ModelAPI_StateInvalidArgument;
 586       }
 587     }
 588   }
 589   // Point2D
 590   {
 591     std::list<AttributePtr> anAttributes =
 592       theFeature->data()->attributes(GeomDataAPI_Point2D::typeId());
 593     std::list<AttributePtr>::iterator anIter = anAttributes.begin();
 594     for(; anIter != anAttributes.end(); anIter++) {
 595       AttributePoint2DPtr aPoint2DAttribute =
 596         std::dynamic_pointer_cast<GeomDataAPI_Point2D>(*anIter);
 597       if (aPoint2DAttribute.get()) {
 598         if (myIsParamUpdated) {
 599           ModelAPI_AttributeEvalMessage::send(aPoint2DAttribute, this);
 600         }
 601         if ((!aPoint2DAttribute->textX().empty() && aPoint2DAttribute->expressionInvalid(0)) ||
 602           (!aPoint2DAttribute->textY().empty() && aPoint2DAttribute->expressionInvalid(1)))
 603           aState = ModelAPI_StateInvalidArgument;
 604       }
 605     }
 606   }
 607   // update the selection attributes if any
 608   list<AttributePtr> aRefs =
 609     theFeature->data()->attributes(ModelAPI_AttributeSelection::typeId());
 610   list<AttributePtr>::iterator aRefsIter = aRefs.begin();
 611   for (; aRefsIter != aRefs.end(); aRefsIter++) {
 612     std::shared_ptr<ModelAPI_AttributeSelection> aSel =
 613       std::dynamic_pointer_cast<ModelAPI_AttributeSelection>(*aRefsIter);
 614     ObjectPtr aContext = aSel->context();
 615     // update argument only if the referenced object is ready to use
 616     if (aContext.get() && !aContext->isDisabled() && isReason(theFeature, aContext)) {
 617       if (!aSel->update()) { // this must be done on execution since it may be long operation
 618         bool isObligatory = !aFactory->isNotObligatory(
 619           theFeature->getKind(), theFeature->data()->id(aSel)) &&
 620           aFactory->isCase(theFeature, theFeature->data()->id(aSel));
 621         if (isObligatory)
 622           aState = ModelAPI_StateInvalidArgument;
 623       }
 624     }
 625   }
 626   // update the selection list attributes if any
 627   aRefs = theFeature->data()->attributes(ModelAPI_AttributeSelectionList::typeId());
 628   for (aRefsIter = aRefs.begin(); aRefsIter != aRefs.end(); aRefsIter++) {
 629     std::shared_ptr<ModelAPI_AttributeSelectionList> aSel =
 630       std::dynamic_pointer_cast<ModelAPI_AttributeSelectionList>(*aRefsIter);
 631     for(int a = aSel->size() - 1; a >= 0; a--) {
 632       std::shared_ptr<ModelAPI_AttributeSelection> aSelAttr =
 633         std::dynamic_pointer_cast<ModelAPI_AttributeSelection>(aSel->value(a));
 634       if (aSelAttr) {
 635         ObjectPtr aContext = aSelAttr->context();
 636         // update argument only if the referenced object is ready to use
 637         if (aContext.get() && !aContext->isDisabled() && isReason(theFeature, aContext)) {
 638           if (!aSelAttr->update()) {
 639             bool isObligatory = !aFactory->isNotObligatory(
 640               theFeature->getKind(), theFeature->data()->id(aSel)) &&
 641               aFactory->isCase(theFeature, theFeature->data()->id(aSel));
 642             if (isObligatory)
 643               aState = ModelAPI_StateInvalidArgument;
 644           }
 645         }
 646       }
 647     }
 648   }
 649
 650   if (aState != ModelAPI_StateDone)
 651     theFeature->data()->execState(aState);
 652 }
 653
 654 bool Model_Update::isReason(std::shared_ptr<ModelAPI_Feature>& theFeature,
 655      std::shared_ptr<ModelAPI_Object> theReason)
 656 {
 657   std::map<std::shared_ptr<ModelAPI_Feature>, std::set<std::shared_ptr<ModelAPI_Feature> > >
 658     ::iterator aReasonsIt = myModified.find(theFeature);
 659   if (aReasonsIt == myModified.end())
 660     return false; // this case only for not-previewed items update state, nothing is changed in args for it
 661   if (aReasonsIt->second.find(theFeature) != aReasonsIt->second.end())
 662     return true; // any is reason if it contains itself
 663   FeaturePtr aReasFeat = std::dynamic_pointer_cast<ModelAPI_Feature>(theReason);
 664   if (!aReasFeat.get()) { // try to get feature of this result
 665     ResultPtr aReasRes = std::dynamic_pointer_cast<ModelAPI_Result>(theReason);
 666     if (aReasRes.get())
 667       aReasFeat = theReason->document()->feature(aReasRes);
 668   }
 669   return aReasonsIt->second.find(aReasFeat) != aReasonsIt->second.end();
 670
 671 }
 672
 673 void Model_Update::executeFeature(FeaturePtr theFeature)
 674 {
 675 #ifdef DEB_UPDATE
 676   std::cout<<"Execute Feature "<<theFeature->name()<<std::endl;
 677 #endif
 678   // execute in try-catch to avoid internal problems of the feature
 679   ModelAPI_ExecState aState = ModelAPI_StateDone;
 680   theFeature->data()->execState(ModelAPI_StateDone);
 681   try {
 682     theFeature->execute();
 683     if (theFeature->data()->execState() != ModelAPI_StateDone) {
 684       aState = ModelAPI_StateExecFailed;
 685     } else {
 686       aState = ModelAPI_StateDone;
 687     }
 688   } catch(...) {
 689     aState = ModelAPI_StateExecFailed;
 690     Events_Error::send(
 691       "Feature " + theFeature->getKind() + " has failed during the execution");
 692   }
 693   // The macro feature has to be deleted in any case even its execution is failed
 694   myWaitForFinish.insert(theFeature);
 695   if (aState != ModelAPI_StateDone) {
 696     theFeature->eraseResults();
 697   }
 698   theFeature->data()->setUpdateID(ModelAPI_Session::get()->transactionID());
 699   redisplayWithResults(theFeature, aState);
 700 }
 701
 702 void Model_Update::updateStability(void* theSender)
 703 {
 704   static ModelAPI_ValidatorsFactory* aFactory = ModelAPI_Session::get()->validators();
 705   if (theSender) {
 706     bool added = false; // object may be was crated
 707     ModelAPI_Object* aSender = static_cast<ModelAPI_Object*>(theSender);
 708     if (aSender && aSender->document()) {
 709       FeaturePtr aFeatureSender =
 710         std::dynamic_pointer_cast<ModelAPI_Feature>(aSender->data()->owner());
 711       if (aFeatureSender.get()) {
 712         Model_Objects* aDocObjects =
 713           std::dynamic_pointer_cast<Model_Document>(aSender->document())->objects();
 714         if (aDocObjects) {
 715           //aDocObjects->synchronizeBackRefs();
 716           // remove or add all concealment refs from this feature
 717           std::list<std::pair<std::string, std::list<ObjectPtr> > > aRefs;
 718           aSender->data()->referencesToObjects(aRefs);
 719           std::list<std::pair<std::string, std::list<ObjectPtr> > >::iterator aRefIt = aRefs.begin();
 720           for(; aRefIt != aRefs.end(); aRefIt++) {
 721             if (!aFactory->isConcealed(aFeatureSender->getKind(), aRefIt->first))
 722               continue; // take into account only concealed references (do not remove the sketch constraint and the edge on constraint edit)
 723             std::list<ObjectPtr>& aRefFeaturesList = aRefIt->second;
 724             std::list<ObjectPtr>::iterator aReferenced = aRefFeaturesList.begin();
 725             for(; aReferenced != aRefFeaturesList.end(); aReferenced++) {
 726                // stability is only on results: feature to feature reference mean nested
 727               // features, that will remove nesting references
 728               if (aReferenced->get() && (*aReferenced)->data()->isValid() &&
 729                 (*aReferenced)->groupName() != ModelAPI_Feature::group()) {
 730                 std::shared_ptr<Model_Data> aData =
 731                   std::dynamic_pointer_cast<Model_Data>((*aReferenced)->data());
 732                 if (aFeatureSender->isStable()) {
 733                   aData->addBackReference(aFeatureSender, aRefIt->first);
 734                 } else {
 735                   aData->removeBackReference(aFeatureSender, aRefIt->first);
 736                   added = true; // remove of concealment may be caused creation of some result
 737                 }
 738               }
 739             }
 740           }
 741         }
 742       }
 743     }
 744     if (added) {
 745       static Events_Loop* aLoop = Events_Loop::loop();
 746       static Events_ID kEventCreated = aLoop->eventByName(EVENT_OBJECT_CREATED);
 747       aLoop->flush(kEventCreated);
 748     }
 749   }
 750 }