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_InfoMessage.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   static const Events_ID kReorderEvent = aLoop->eventByName(EVENT_ORDER_UPDATED);
  60   aLoop->registerListener(this, kReorderEvent);
  61
  62   //  Config_PropManager::findProp("Model update", "automatic_rebuild")->value() == "true";
  63   myIsParamUpdated = false;
  64   myIsFinish = false;
  65   myIsProcessed = false;
  66   myIsPreviewBlocked = false;
  67 }
  68
  69 bool Model_Update::addModified(FeaturePtr theFeature, FeaturePtr theReason) {
  70
  71   if (!theFeature->data()->isValid())
  72     return false; // delete an extrusion created on the sketch
  73
  74   if (theFeature->isPersistentResult()) {
  75     if (!std::dynamic_pointer_cast<Model_Document>((theFeature)->document())->executeFeatures())
  76       return false;
  77   }
  78
  79   // update arguments for "apply button" state change
  80   if ((!theFeature->isPreviewNeeded() && !myIsFinish) || myIsPreviewBlocked) {
  81     myProcessOnFinish.insert(theFeature);
  82 #ifdef DEB_UPDATE
  83       std::cout<<"*** Add process on finish "<<theFeature->name()<<std::endl;
  84 #endif
  85     // keeps the currently updated features to avoid infinitive cycling here: where feature on
  86     // "updateArguments" sends "updated" (in selection attribute) and goes here again
  87     static std::set<FeaturePtr> aCurrentlyUpdated;
  88     if (aCurrentlyUpdated.find(theFeature) == aCurrentlyUpdated.end()) {
  89       aCurrentlyUpdated.insert(theFeature);
  90       updateArguments(theFeature);
  91       aCurrentlyUpdated.erase(theFeature);
  92     }
  93     // make it without conditions otherwise the apply button may have a bad state
  94     theFeature->data()->execState(ModelAPI_StateDone);
  95     static ModelAPI_ValidatorsFactory* aFactory = ModelAPI_Session::get()->validators();
  96     aFactory->validate(theFeature); // need to be validated to update the "Apply" state if not previewed
  97
  98     if (!myIsPreviewBlocked)
  99       return true;
 100   }
 101   if (myModified.find(theFeature) != myModified.end()) {
 102     if (theReason.get()) {
 103 #ifdef DEB_UPDATE
 104       std::cout<<"*** Add already modified "<<theFeature->name()<<" reason "<<theReason->name()<<std::endl;
 105 #endif
 106       myModified[theFeature].insert(theReason);
 107     }
 108     return true;
 109   }
 110   // do not add the disabled, but possibly the sub-elements are not disabled
 111   bool aIsDisabled = theFeature->isDisabled();
 112   if (!aIsDisabled) {
 113     std::set<std::shared_ptr<ModelAPI_Feature> > aNewSet;
 114     if (theFeature->data()->execState() == ModelAPI_StateMustBeUpdated ||
 115         theFeature->data()->execState() == ModelAPI_StateInvalidArgument) { // issue 1519
 116       // do not forget that in this case all were the reasons
 117       aNewSet.insert(theFeature);
 118     } else {
 119       if (theReason.get())
 120         aNewSet.insert(theReason);
 121     }
 122     myModified[theFeature] = aNewSet;
 123 #ifdef DEB_UPDATE
 124     if (theReason.get())
 125       std::cout<<"*** Add modified "<<theFeature->name()<<" reason "<<theReason->name()<<std::endl;
 126     else
 127       std::cout<<"*** Add modified "<<theFeature->name()<<std::endl;
 128 #endif
 129   } else { // will be updated during the finish of the operation, or when it becomes enabled
 130     if (theFeature->data()->execState() == ModelAPI_StateDone)
 131       theFeature->data()->execState(ModelAPI_StateMustBeUpdated);
 132     else
 133       return true; // do not need iteration deeply if it is already marked as modified or so
 134 #ifdef DEB_UPDATE
 135     std::cout<<"*** Set modified state "<<theFeature->name()<<std::endl;
 136 #endif
 137   }
 138   // clear processed and fill modified recursively
 139   const std::set<std::shared_ptr<ModelAPI_Attribute> >& aRefs = theFeature->data()->refsToMe();
 140   std::set<std::shared_ptr<ModelAPI_Attribute> >::const_iterator aRefIter = aRefs.cbegin();
 141   for(; aRefIter != aRefs.cend(); aRefIter++) {
 142     if ((*aRefIter)->isArgument()) {
 143       FeaturePtr aReferenced = std::dynamic_pointer_cast<ModelAPI_Feature>((*aRefIter)->owner());
 144       if (aReferenced.get()) {
 145         addModified(aReferenced, theFeature);
 146       }
 147     }
 148   }
 149   // proccess also results
 150   std::list<ResultPtr> allResults; // list of this feature and results
 151   ModelAPI_Tools::allResults(theFeature, allResults);
 152   std::list<ResultPtr>::iterator aRes = allResults.begin();
 153   for(; aRes != allResults.end(); aRes++) {
 154     const std::set<std::shared_ptr<ModelAPI_Attribute> >& aRefs = (*aRes)->data()->refsToMe();
 155     std::set<std::shared_ptr<ModelAPI_Attribute> >::const_iterator aRefIter = aRefs.cbegin();
 156     for(; aRefIter != aRefs.cend(); aRefIter++) {
 157       if ((*aRefIter)->isArgument()) {
 158         FeaturePtr aReferenced = std::dynamic_pointer_cast<ModelAPI_Feature>((*aRefIter)->owner());
 159         if (aReferenced.get()) {
 160           addModified(aReferenced, theFeature);
 161         }
 162       }
 163     }
 164   }
 165
 166   // also add part feature that contains this feature to the modified
 167   if (theFeature->document()->kind() != "PartSet") {
 168     FeaturePtr aPart = ModelAPI_Tools::findPartFeature(
 169       ModelAPI_Session::get()->moduleDocument(), theFeature->document());
 170     if (aPart.get())
 171       addModified(aPart, theFeature);
 172   }
 173   return true;
 174 }
 175
 176 void Model_Update::processEvent(const std::shared_ptr<Events_Message>& theMessage)
 177 {
 178   static Events_Loop* aLoop = Events_Loop::loop();
 179   static const Events_ID kCreatedEvent = aLoop->eventByName(EVENT_OBJECT_CREATED);
 180   static const Events_ID kUpdatedEvent = aLoop->eventByName(EVENT_OBJECT_UPDATED);
 181   static const Events_ID kOpFinishEvent = aLoop->eventByName("FinishOperation");
 182   static const Events_ID kOpAbortEvent = aLoop->eventByName("AbortOperation");
 183   static const Events_ID kOpStartEvent = aLoop->eventByName("StartOperation");
 184   static const Events_ID kStabilityEvent = aLoop->eventByName(EVENT_STABILITY_CHANGED);
 185   static const Events_ID kPreviewBlockedEvent = aLoop->eventByName(EVENT_PREVIEW_BLOCKED);
 186   static const Events_ID kPreviewRequestedEvent = aLoop->eventByName(EVENT_PREVIEW_REQUESTED);
 187   static const Events_ID kReorderEvent = aLoop->eventByName(EVENT_ORDER_UPDATED);
 188
 189 #ifdef DEB_UPDATE
 190   std::cout<<"****** Event "<<theMessage->eventID().eventText()<<std::endl;
 191 #endif
 192   if (theMessage->eventID() == kStabilityEvent) {
 193     updateStability(theMessage->sender());
 194     return;
 195   }
 196   if (theMessage->eventID() == kPreviewBlockedEvent) {
 197     myIsPreviewBlocked = true;
 198     return;
 199   }
 200   if (theMessage->eventID() == kPreviewRequestedEvent) {
 201     if (myIsPreviewBlocked) {
 202       myIsPreviewBlocked = false;
 203       processFeatures();
 204       myIsPreviewBlocked = true;
 205     }
 206     return;
 207   }
 208   // creation is added to "update" to avoid recomputation twice: on create and immediately after on update
 209   if (theMessage->eventID() == kCreatedEvent) {
 210     std::shared_ptr<ModelAPI_ObjectUpdatedMessage> aMsg =
 211         std::dynamic_pointer_cast<ModelAPI_ObjectUpdatedMessage>(theMessage);
 212     const std::set<ObjectPtr>& anObjs = aMsg->objects();
 213     std::set<ObjectPtr>::const_iterator anObjIter = anObjs.cbegin();
 214     for(; anObjIter != anObjs.cend(); anObjIter++) {
 215       if (std::dynamic_pointer_cast<Model_Document>((*anObjIter)->document())->executeFeatures())
 216         ModelAPI_EventCreator::get()->sendUpdated(*anObjIter, kUpdatedEvent);
 217     }
 218     return;
 219   }
 220   if (theMessage->eventID() == kUpdatedEvent) {
 221     std::shared_ptr<ModelAPI_ObjectUpdatedMessage> aMsg =
 222         std::dynamic_pointer_cast<ModelAPI_ObjectUpdatedMessage>(theMessage);
 223     const std::set<ObjectPtr>& anObjs = aMsg->objects();
 224     std::set<ObjectPtr>::const_iterator anObjIter = anObjs.cbegin();
 225     bool aSomeModified = false; // check that features not changed: only redisplay is needed
 226     for(; anObjIter != anObjs.cend(); anObjIter++) {
 227       if (!(*anObjIter)->data()->isValid())
 228         continue;
 229 #ifdef DEB_UPDATE
 230       std::cout<<">>> in event updated "<<(*anObjIter)->groupName()<<" "<<(*anObjIter)->data()->name()<<std::endl;
 231 #endif
 232       if ((*anObjIter)->groupName() == ModelAPI_ResultParameter::group()) {
 233         myIsParamUpdated = true;
 234       }
 235       // on undo/redo, abort do not update persisten features
 236       FeaturePtr anUpdated = std::dynamic_pointer_cast<ModelAPI_Feature>(*anObjIter);
 237       if (anUpdated.get()) {
 238         if (addModified(anUpdated, FeaturePtr()))
 239           aSomeModified = true;
 240       } else { // process the updated result as update of features that refers to this result
 241         const std::set<std::shared_ptr<ModelAPI_Attribute> >& aRefs = (*anObjIter)->data()->refsToMe();
 242         std::set<std::shared_ptr<ModelAPI_Attribute> >::const_iterator aRefIter = aRefs.cbegin();
 243         for(; aRefIter != aRefs.cend(); aRefIter++) {
 244           if (!(*aRefIter)->owner()->data()->isValid())
 245             continue;
 246           FeaturePtr anUpdated = std::dynamic_pointer_cast<ModelAPI_Feature>((*aRefIter)->owner());
 247           if (anUpdated.get()) {
 248             if (addModified(anUpdated, FeaturePtr()))
 249               aSomeModified = true;
 250           }
 251         }
 252       }
 253     }
 254     // this event is for solver update, not here, do not react immediately
 255     if (aSomeModified) {
 256         processFeatures();
 257     }
 258   } else if (theMessage->eventID() == kOpFinishEvent || theMessage->eventID() == kOpAbortEvent ||
 259       theMessage->eventID() == kOpStartEvent) {
 260     myIsPreviewBlocked = false;
 261
 262     if (theMessage->eventID() == kOpFinishEvent) {
 263       myIsFinish = true;
 264       // add features that wait for finish as modified
 265       std::set<std::shared_ptr<ModelAPI_Feature> >::iterator aFeature = myProcessOnFinish.begin();
 266       for(; aFeature != myProcessOnFinish.end(); aFeature++)
 267         if ((*aFeature)->data()->isValid()) // there may be already removed wait for features
 268           addModified(*aFeature, FeaturePtr());
 269       myIsFinish = false;
 270     }
 271     myProcessOnFinish.clear(); // processed features must be only on finish, so clear anyway (to avoid reimport on load)
 272
 273     if (!(theMessage->eventID() == kOpStartEvent)) {
 274       processFeatures(false);
 275     }
 276     // remove all macros before clearing all created
 277     std::set<FeaturePtr>::iterator anUpdatedIter = myWaitForFinish.begin();
 278     while(anUpdatedIter != myWaitForFinish.end()) {
 279       FeaturePtr aFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(*anUpdatedIter);
 280       if (aFeature.get()) {
 281         // remove macro on finish
 282         if (aFeature->isMacro()) {
 283           aFeature->document()->removeFeature(aFeature);
 284           myWaitForFinish.erase(aFeature);
 285         }
 286         // to avoid the map update problems on "remove"
 287         if (myWaitForFinish.find(aFeature) == myWaitForFinish.end()) {
 288           anUpdatedIter = myWaitForFinish.begin();
 289         } else {
 290           anUpdatedIter++;
 291         }
 292       } else {
 293         anUpdatedIter++;
 294       }
 295     }
 296     // the redisplay signal should be flushed in order to erase the feature presentation in the viewer
 297     // if should be done after removeFeature() of document,
 298     // by this reason, upper processFeatures() do not perform this flush
 299     Events_Loop::loop()->flush(Events_Loop::loop()->eventByName(EVENT_OBJECT_TO_REDISPLAY));
 300
 301     // in the end of transaction everything is updated, so clear the old objects
 302     myIsParamUpdated = false;
 303     myWaitForFinish.clear();
 304   } else if (theMessage->eventID() == kReorderEvent) {
 305     std::shared_ptr<ModelAPI_OrderUpdatedMessage> aMsg =
 306       std::dynamic_pointer_cast<ModelAPI_OrderUpdatedMessage>(theMessage);
 307     addModified(aMsg->reordered(), aMsg->reordered()); // to update all attributes
 308   }
 309 }
 310
 311 void Model_Update::processFeatures(const bool theFlushRedisplay)
 312 {
 313    // perform update of everything if it is not performed right now or any preview is blocked
 314   if (!myIsProcessed && !myIsPreviewBlocked) {
 315     myIsProcessed = true;
 316     #ifdef DEB_UPDATE
 317       std::cout<<"****** Start processing"<<std::endl;
 318     #endif
 319
 320     while(!myModified.empty()) {
 321       processFeature(myModified.begin()->first);
 322     }
 323     myIsProcessed = false;
 324
 325     // to update the object browser if something is updated/created during executions
 326     static Events_Loop* aLoop = Events_Loop::loop();
 327     static const Events_ID kCreatedEvent= aLoop->eventByName(EVENT_OBJECT_CREATED);
 328     aLoop->flush(kCreatedEvent);
 329     static const Events_ID kUpdatedEvent = aLoop->eventByName(EVENT_OBJECT_UPDATED);
 330     aLoop->flush(kUpdatedEvent);
 331
 332     // flush to update display
 333     if (theFlushRedisplay) {
 334       static Events_ID EVENT_DISP = aLoop->eventByName(EVENT_OBJECT_TO_REDISPLAY);
 335       aLoop->flush(EVENT_DISP);
 336     }
 337     #ifdef DEB_UPDATE
 338       std::cout<<"****** End processing"<<std::endl;
 339     #endif
 340     myProcessed.clear();
 341   }
 342 }
 343
 344 // collects all the feautres this feature depends on: reasons
 345 static void allReasons(FeaturePtr theFeature, std::set<FeaturePtr>& theReasons) {
 346   std::list<std::pair<std::string, std::list<std::shared_ptr<ModelAPI_Object> > > > aDeps;
 347   theFeature->data()->referencesToObjects(aDeps);
 348   std::list<std::pair<std::string, std::list<std::shared_ptr<ModelAPI_Object> > > >::iterator
 349     anAttrsIter = aDeps.begin();
 350   for(; anAttrsIter != aDeps.end(); anAttrsIter++) {
 351     if (theFeature->attribute(anAttrsIter->first)->isArgument()) {
 352       std::list<std::shared_ptr<ModelAPI_Object> >::iterator aDepIter = anAttrsIter->second.begin();
 353       for(; aDepIter != anAttrsIter->second.end(); aDepIter++) {
 354         FeaturePtr aDepFeat = std::dynamic_pointer_cast<ModelAPI_Feature>(*aDepIter);
 355         if (!aDepFeat.get()) { // so, it depends on the result and process the feature owner of it
 356           ResultPtr aDepRes = std::dynamic_pointer_cast<ModelAPI_Result>(*aDepIter);
 357           if (aDepRes.get()) {
 358             aDepFeat = (*aDepIter)->document()->feature(aDepRes);
 359           }
 360         }
 361         if (aDepFeat.get() && aDepFeat->data()->isValid()) {
 362           theReasons.insert(aDepFeat);
 363         }
 364       }
 365     }
 366   }
 367   if (theFeature->getKind() == "Part") { // part is not depended on its subs directly, but subs must be iterated anyway
 368     CompositeFeaturePtr aPart = std::dynamic_pointer_cast<ModelAPI_CompositeFeature>(theFeature);
 369     int aNum = aPart->numberOfSubs();
 370     for(int a = 0; a < aNum; a++) {
 371       FeaturePtr aSub = aPart->subFeature(a);
 372       if (aSub.get() && aSub->data()->isValid()) {
 373         theReasons.insert(aSub);
 374       }
 375     }
 376   }
 377 }
 378
 379 bool Model_Update::processFeature(FeaturePtr theFeature)
 380 {
 381   static ModelAPI_ValidatorsFactory* aFactory = ModelAPI_Session::get()->validators();
 382
 383   if (!theFeature->data()->isValid()) { // deleted feature, just remove from all containers
 384     if (myModified.find(theFeature) != myModified.end())
 385       myModified.erase(theFeature);
 386     return false;
 387   }
 388
 389   if (theFeature->isPersistentResult()) {
 390     if (!std::dynamic_pointer_cast<Model_Document>((theFeature)->document())->executeFeatures())
 391       return false;
 392   }
 393
 394   if (myProcessed.find(theFeature) == myProcessed.end()) {
 395     myProcessed[theFeature] = 0;
 396   } else {
 397     int aCount = myProcessed[theFeature];
 398     if (aCount > 100) { // too many repetition of processing (in VS it may crash on 330 with stack overflow)
 399       Events_InfoMessage("Model_Update",
 400         "Feature '%1' is updated in infinitive loop").arg(theFeature->data()->name()).send();
 401       return false;
 402     }
 403     myProcessed[theFeature] = aCount + 1;
 404   }
 405
 406   // check this feature is not yet checked or processed
 407   bool aIsModified = myModified.find(theFeature) != myModified.end();
 408   if (!aIsModified && myIsFinish) { // get info about the modification for features without preview
 409     if (theFeature->data()->execState() == ModelAPI_StateMustBeUpdated) {
 410       aIsModified = true;
 411       std::set<std::shared_ptr<ModelAPI_Feature> > aNewSet;
 412       aNewSet.insert(theFeature); // contains itself, so, we don't know which was the reason and the reason is any
 413       myModified[theFeature] = aNewSet;
 414     }
 415   }
 416
 417 #ifdef DEB_UPDATE
 418     std::cout<<"* Process feature "<<theFeature->name()<<std::endl;
 419 #endif
 420
 421   // update the sketch plane before the sketch sub-elements are recomputed
 422   // (otherwise sketch will update plane, modify subs, after executed, but with old subs edges)
 423   if (aIsModified && theFeature->getKind() == "Sketch") {
 424 #ifdef DEB_UPDATE
 425     std::cout<<"****** Update sketch args "<<theFeature->name()<<std::endl;
 426 #endif
 427     AttributeSelectionPtr anExtSel = theFeature->selection("External");
 428     if (anExtSel.get()) {
 429       ResultPtr aContext = anExtSel->context();
 430       if (aContext.get() && aContext->document().get()) {
 431         FeaturePtr anExtBase = aContext->document()->feature(aContext);
 432         if (anExtBase.get()) {
 433           processFeature(anExtBase);
 434         }
 435       }
 436     }
 437     updateArguments(theFeature);
 438   }
 439
 440   if (!aIsModified) { // no modification is needed
 441     return false;
 442   }
 443
 444   // evaluate parameter before the sub-elements update: it updates dependencies on evaluation (#1085)
 445   if (theFeature->getKind() == "Parameter") {
 446     theFeature->execute();
 447   }
 448
 449   bool isReferencedInvalid = false;
 450   // check all features this feature depended on (recursive call of updateFeature)
 451   std::set<FeaturePtr>& aReasons = myModified[theFeature];
 452   bool allSubsUsed = aReasons.find(theFeature) != aReasons.end();
 453   if (allSubsUsed) { // add all subs in aReasons and temporary remove "theFeature" to avoid processing itself
 454     allReasons(theFeature, aReasons);
 455     aReasons.erase(theFeature);
 456   }
 457   // take reasons one by one (they may be added during the feature process (circle by the radius of sketch)
 458   std::set<FeaturePtr> aProcessedReasons;
 459   while(!aReasons.empty()) {
 460     FeaturePtr aReason = *(aReasons.begin());
 461 #ifdef DEB_UPDATE
 462     //cout<<theFeature->name()<<" process next reason "<<aReason->name()<<endl;
 463 #endif
 464     if (aReason != theFeature && (aReason)->data()->isValid()) {
 465       if (processFeature(aReason))
 466         aIsModified = true;
 467       if (aReason->data()->execState() == ModelAPI_StateInvalidArgument)
 468         isReferencedInvalid = true;
 469     }
 470     // searching for the next not used reason
 471     aProcessedReasons.insert(aReason);
 472     aReasons.erase(aReason);
 473   }
 474   // restore the modified reasons: they will be used in the update of arguments
 475   if (allSubsUsed) { // restore theFeature in this set
 476     aProcessedReasons.insert(theFeature);
 477   }
 478   myModified[theFeature] = aProcessedReasons;
 479
 480   // do not execute the composite that contains the current
 481   bool isPostponedMain = false;
 482   CompositeFeaturePtr aCompos = std::dynamic_pointer_cast<ModelAPI_CompositeFeature>(theFeature);
 483   if (theFeature->getKind() == "ExtrusionSketch" && aCompos.get()) {
 484     CompositeFeaturePtr aCurrentOwner =
 485       ModelAPI_Tools::compositeOwner(theFeature->document()->currentFeature(false));
 486     isPostponedMain = aCurrentOwner.get() && aCompos->isSub(aCurrentOwner);
 487   }
 488
 489 #ifdef DEB_UPDATE
 490   std::cout<<"Update args "<<theFeature->name()<<std::endl;
 491 #endif
 492   // TestImport.py : after arguments are updated, theFeature may be removed
 493   if (!theFeature->data()->isValid())
 494     return false;
 495   // Update selection and parameters attributes first, before sub-features analysis (sketch plane).
 496   updateArguments(theFeature);
 497
 498   // add this feature to the processed right now to be able remove it from this list on
 499   // update signal during this feature execution
 500   myModified.erase(theFeature);
 501   if (theFeature->data()->execState() == ModelAPI_StateMustBeUpdated)
 502     theFeature->data()->execState(ModelAPI_StateDone);
 503
 504   // this checking must be after the composite feature sub-elements processing:
 505   // composite feature status may depend on it's subelements
 506   if ((theFeature->data()->execState() == ModelAPI_StateInvalidArgument || isReferencedInvalid) &&
 507     theFeature->getKind() != "Part") { // don't disable Part because it will make disabled all the features (performance and problems with the current feature)
 508   #ifdef DEB_UPDATE
 509     std::cout<<"Invalid args "<<theFeature->name()<<std::endl;
 510   #endif
 511     theFeature->eraseResults();
 512     redisplayWithResults(theFeature, ModelAPI_StateInvalidArgument); // result also must be updated
 513     return true; // so, feature is modified (results are erased)
 514   }
 515
 516   // execute feature if it must be updated
 517   ModelAPI_ExecState aState = theFeature->data()->execState();
 518   if (aFactory->validate(theFeature)) {
 519     if (!isPostponedMain) {
 520       executeFeature(theFeature);
 521     }
 522   } else {
 523     #ifdef DEB_UPDATE
 524       std::cout<<"Feature is not valid, erase results "<<theFeature->name()<<std::endl;
 525     #endif
 526     theFeature->eraseResults();
 527     redisplayWithResults(theFeature, ModelAPI_StateInvalidArgument); // result also must be updated
 528   }
 529   return true;
 530 }
 531
 532 void Model_Update::redisplayWithResults(FeaturePtr theFeature, const ModelAPI_ExecState theState)
 533 {
 534   // make updated and redisplay all results
 535   static Events_ID EVENT_DISP = Events_Loop::loop()->eventByName(EVENT_OBJECT_TO_REDISPLAY);
 536
 537   std::list<ResultPtr> allResults;
 538   ModelAPI_Tools::allResults(theFeature, allResults);
 539   std::list<ResultPtr>::iterator aRIter = allResults.begin();
 540   for (; aRIter != allResults.cend(); aRIter++) {
 541     std::shared_ptr<ModelAPI_Result> aRes = *aRIter;
 542     if (!aRes->isDisabled()) {// update state only for enabled results (Placement Result Part may make the original Part Result as invalid)
 543       aRes->data()->execState(theState);
 544     }
 545     if (theFeature->data()->updateID() > aRes->data()->updateID()) {
 546       aRes->data()->setUpdateID(theFeature->data()->updateID());
 547     }
 548     ModelAPI_EventCreator::get()->sendUpdated(aRes, EVENT_DISP);
 549   }
 550   // to redisplay "presentable" feature (for ex. distance constraint)
 551   ModelAPI_EventCreator::get()->sendUpdated(theFeature, EVENT_DISP);
 552   theFeature->data()->execState(theState);
 553 }
 554
 555 /// Updates the state by the referenced object: if something bad with it, set state for this one
 556 ModelAPI_ExecState stateByReference(ObjectPtr theTarget, const ModelAPI_ExecState theCurrent)
 557 {
 558   if (theTarget) {
 559     ModelAPI_ExecState aRefState = theTarget->data()->execState();
 560     if (aRefState == ModelAPI_StateMustBeUpdated) {
 561       if (theCurrent == ModelAPI_StateDone)
 562         return ModelAPI_StateMustBeUpdated;
 563     } else if (aRefState != ModelAPI_StateDone) {
 564       return ModelAPI_StateInvalidArgument;
 565     }
 566   }
 567   return theCurrent;
 568 }
 569
 570 void Model_Update::updateArguments(FeaturePtr theFeature) {
 571   // perform this method also for disabled features: to make "not done" state for
 572   // features referenced to the active and modified features
 573
 574   static ModelAPI_ValidatorsFactory* aFactory = ModelAPI_Session::get()->validators();
 575
 576   ModelAPI_ExecState aState = theFeature->data()->execState();
 577   if (aState == ModelAPI_StateExecFailed) { // try again failed feature: issue 577
 578     aState = ModelAPI_StateMustBeUpdated;
 579   }
 580   if (aState == ModelAPI_StateInvalidArgument) // a chance to be corrected
 581     aState = ModelAPI_StateMustBeUpdated;
 582   // check the parameters state
 583   // Integer
 584   {
 585     std::list<AttributePtr> anAttrinbutes =
 586       theFeature->data()->attributes(ModelAPI_AttributeInteger::typeId());
 587     std::list<AttributePtr>::iterator anIter = anAttrinbutes.begin();
 588     for(; anIter != anAttrinbutes.end(); anIter++) {
 589       AttributeIntegerPtr anAttribute =
 590         std::dynamic_pointer_cast<ModelAPI_AttributeInteger>(*anIter);
 591       if (anAttribute.get() && !anAttribute->text().empty()) {
 592         if (myIsParamUpdated) {
 593           ModelAPI_AttributeEvalMessage::send(anAttribute, this);
 594         }
 595         if (anAttribute->expressionInvalid()) {
 596           aState = ModelAPI_StateInvalidArgument;
 597         }
 598       }
 599     }
 600   }
 601   // Double
 602   {
 603     std::list<AttributePtr> aDoubles =
 604       theFeature->data()->attributes(ModelAPI_AttributeDouble::typeId());
 605     std::list<AttributePtr>::iterator aDoubleIter = aDoubles.begin();
 606     for(; aDoubleIter != aDoubles.end(); aDoubleIter++) {
 607       AttributeDoublePtr aDouble =
 608         std::dynamic_pointer_cast<ModelAPI_AttributeDouble>(*aDoubleIter);
 609       if (aDouble.get() && !aDouble->text().empty()) {
 610         if (myIsParamUpdated) {
 611           ModelAPI_AttributeEvalMessage::send(aDouble, this);
 612         }
 613         if (aDouble->expressionInvalid()) {
 614           aState = ModelAPI_StateInvalidArgument;
 615         }
 616       }
 617     }
 618   }
 619   // Point
 620   {
 621     std::list<AttributePtr> anAttributes =
 622       theFeature->data()->attributes(GeomDataAPI_Point::typeId());
 623     std::list<AttributePtr>::iterator anIter = anAttributes.begin();
 624     for(; anIter != anAttributes.end(); anIter++) {
 625       AttributePointPtr aPointAttribute =
 626         std::dynamic_pointer_cast<GeomDataAPI_Point>(*anIter);
 627       if (aPointAttribute.get() && (!aPointAttribute->textX().empty() ||
 628           !aPointAttribute->textY().empty() || !aPointAttribute->textZ().empty())) {
 629         if (myIsParamUpdated) {
 630           ModelAPI_AttributeEvalMessage::send(aPointAttribute, this);
 631         }
 632         if ((!aPointAttribute->textX().empty() && aPointAttribute->expressionInvalid(0)) ||
 633           (!aPointAttribute->textY().empty() && aPointAttribute->expressionInvalid(1)) ||
 634           (!aPointAttribute->textZ().empty() && aPointAttribute->expressionInvalid(2)))
 635           aState = ModelAPI_StateInvalidArgument;
 636       }
 637     }
 638   }
 639   // Point2D
 640   {
 641     std::list<AttributePtr> anAttributes =
 642       theFeature->data()->attributes(GeomDataAPI_Point2D::typeId());
 643     std::list<AttributePtr>::iterator anIter = anAttributes.begin();
 644     for(; anIter != anAttributes.end(); anIter++) {
 645       AttributePoint2DPtr aPoint2DAttribute =
 646         std::dynamic_pointer_cast<GeomDataAPI_Point2D>(*anIter);
 647       if (aPoint2DAttribute.get()) {
 648         if (myIsParamUpdated && (!aPoint2DAttribute->textX().empty() ||
 649             !aPoint2DAttribute->textY().empty())) {
 650           ModelAPI_AttributeEvalMessage::send(aPoint2DAttribute, this);
 651         }
 652         if ((!aPoint2DAttribute->textX().empty() && aPoint2DAttribute->expressionInvalid(0)) ||
 653           (!aPoint2DAttribute->textY().empty() && aPoint2DAttribute->expressionInvalid(1)))
 654           aState = ModelAPI_StateInvalidArgument;
 655       }
 656     }
 657   }
 658   // update the selection attributes if any
 659   list<AttributePtr> aRefs =
 660     theFeature->data()->attributes(ModelAPI_AttributeSelection::typeId());
 661   list<AttributePtr>::iterator aRefsIter = aRefs.begin();
 662   for (; aRefsIter != aRefs.end(); aRefsIter++) {
 663     std::shared_ptr<ModelAPI_AttributeSelection> aSel =
 664       std::dynamic_pointer_cast<ModelAPI_AttributeSelection>(*aRefsIter);
 665     ObjectPtr aContext = aSel->context();
 666     // update argument only if the referenced object is ready to use
 667     if (aContext.get() && !aContext->isDisabled()) {
 668       if (isReason(theFeature, aContext)) {
 669         if (!aSel->update()) { // this must be done on execution since it may be long operation
 670           bool isObligatory = !aFactory->isNotObligatory(
 671             theFeature->getKind(), theFeature->data()->id(aSel)) &&
 672             aFactory->isCase(theFeature, theFeature->data()->id(aSel));
 673           if (isObligatory)
 674             aState = ModelAPI_StateInvalidArgument;
 675         }
 676       }
 677     } else if (aContext.get()) {
 678       // here it may be not obligatory, but if the reference is wrong, it should not be correct
 679       bool isObligatory = aFactory->isCase(theFeature, theFeature->data()->id(aSel));
 680       if (isObligatory)
 681         aState = ModelAPI_StateInvalidArgument;
 682     }
 683   }
 684   // update the selection list attributes if any
 685   aRefs = theFeature->data()->attributes(ModelAPI_AttributeSelectionList::typeId());
 686   for (aRefsIter = aRefs.begin(); aRefsIter != aRefs.end(); aRefsIter++) {
 687     std::shared_ptr<ModelAPI_AttributeSelectionList> aSel =
 688       std::dynamic_pointer_cast<ModelAPI_AttributeSelectionList>(*aRefsIter);
 689     for(int a = aSel->size() - 1; a >= 0; a--) {
 690       std::shared_ptr<ModelAPI_AttributeSelection> aSelAttr =
 691         std::dynamic_pointer_cast<ModelAPI_AttributeSelection>(aSel->value(a));
 692       if (aSelAttr) {
 693         ObjectPtr aContext = aSelAttr->context();
 694         // update argument only if the referenced object is ready to use
 695         if (aContext.get() && !aContext->isDisabled()) {
 696           if (isReason(theFeature, aContext)) {
 697             if (!aSelAttr->update()) {
 698               bool isObligatory = !aFactory->isNotObligatory(
 699                 theFeature->getKind(), theFeature->data()->id(aSel)) &&
 700                 aFactory->isCase(theFeature, theFeature->data()->id(aSel));
 701               if (isObligatory)
 702                 aState = ModelAPI_StateInvalidArgument;
 703             }
 704           }
 705         } else if (aContext.get()) {
 706           // here it may be not obligatory, but if the reference is wrong, it should not be correct
 707           bool isObligatory = aFactory->isCase(theFeature, theFeature->data()->id(aSel));
 708           if (isObligatory)
 709             aState = ModelAPI_StateInvalidArgument;
 710         }
 711       }
 712     }
 713   }
 714
 715   if (aState != ModelAPI_StateDone)
 716     theFeature->data()->execState(aState);
 717 }
 718
 719 bool Model_Update::isReason(std::shared_ptr<ModelAPI_Feature>& theFeature,
 720      std::shared_ptr<ModelAPI_Object> theReason)
 721 {
 722   std::map<std::shared_ptr<ModelAPI_Feature>, std::set<std::shared_ptr<ModelAPI_Feature> > >
 723     ::iterator aReasonsIt = myModified.find(theFeature);
 724   if (aReasonsIt == myModified.end())
 725     return false; // this case only for not-previewed items update state, nothing is changed in args for it
 726   if (aReasonsIt->second.find(theFeature) != aReasonsIt->second.end())
 727     return true; // any is reason if it contains itself
 728   FeaturePtr aReasFeat = std::dynamic_pointer_cast<ModelAPI_Feature>(theReason);
 729   if (!aReasFeat.get()) { // try to get feature of this result
 730     ResultPtr aReasRes = std::dynamic_pointer_cast<ModelAPI_Result>(theReason);
 731     if (aReasRes.get())
 732       aReasFeat = theReason->document()->feature(aReasRes);
 733   }
 734   return aReasonsIt->second.find(aReasFeat) != aReasonsIt->second.end();
 735
 736 }
 737
 738 void Model_Update::executeFeature(FeaturePtr theFeature)
 739 {
 740 #ifdef DEB_UPDATE
 741   std::cout<<"Execute Feature "<<theFeature->name()<<std::endl;
 742 #endif
 743   // execute in try-catch to avoid internal problems of the feature
 744   ModelAPI_ExecState aState = ModelAPI_StateDone;
 745   theFeature->data()->execState(ModelAPI_StateDone);
 746   try {
 747     theFeature->execute();
 748     if (theFeature->data()->execState() != ModelAPI_StateDone) {
 749       aState = ModelAPI_StateExecFailed;
 750     } else {
 751       aState = ModelAPI_StateDone;
 752     }
 753   } catch(...) {
 754     aState = ModelAPI_StateExecFailed;
 755     Events_InfoMessage("Model_Update",
 756       "Feature %1 has failed during the execution").arg(theFeature->getKind()).send();
 757   }
 758   // The macro feature has to be deleted in any case even its execution is failed
 759   myWaitForFinish.insert(theFeature);
 760   if (aState != ModelAPI_StateDone) {
 761     theFeature->eraseResults();
 762   }
 763   theFeature->data()->setUpdateID(ModelAPI_Session::get()->transactionID());
 764   redisplayWithResults(theFeature, aState);
 765 }
 766
 767 void Model_Update::updateStability(void* theSender)
 768 {
 769   static ModelAPI_ValidatorsFactory* aFactory = ModelAPI_Session::get()->validators();
 770   if (theSender) {
 771     bool added = false; // object may be was crated
 772     ModelAPI_Object* aSender = static_cast<ModelAPI_Object*>(theSender);
 773     if (aSender && aSender->document()) {
 774       FeaturePtr aFeatureSender =
 775         std::dynamic_pointer_cast<ModelAPI_Feature>(aSender->data()->owner());
 776       if (aFeatureSender.get()) {
 777         Model_Objects* aDocObjects =
 778           std::dynamic_pointer_cast<Model_Document>(aSender->document())->objects();
 779         if (aDocObjects) {
 780           //aDocObjects->synchronizeBackRefs();
 781           // remove or add all concealment refs from this feature
 782           std::list<std::pair<std::string, std::list<ObjectPtr> > > aRefs;
 783           aSender->data()->referencesToObjects(aRefs);
 784           std::list<std::pair<std::string, std::list<ObjectPtr> > >::iterator aRefIt = aRefs.begin();
 785           for(; aRefIt != aRefs.end(); aRefIt++) {
 786             if (!aFactory->isConcealed(aFeatureSender->getKind(), aRefIt->first))
 787               continue; // take into account only concealed references (do not remove the sketch constraint and the edge on constraint edit)
 788             std::list<ObjectPtr>& aRefFeaturesList = aRefIt->second;
 789             std::list<ObjectPtr>::iterator aReferenced = aRefFeaturesList.begin();
 790             for(; aReferenced != aRefFeaturesList.end(); aReferenced++) {
 791                // stability is only on results: feature to feature reference mean nested
 792               // features, that will remove nesting references
 793               if (aReferenced->get() && (*aReferenced)->data()->isValid() &&
 794                 (*aReferenced)->groupName() != ModelAPI_Feature::group()) {
 795                 std::shared_ptr<Model_Data> aData =
 796                   std::dynamic_pointer_cast<Model_Data>((*aReferenced)->data());
 797                 if (aFeatureSender->isStable()) {
 798                   aData->addBackReference(aFeatureSender, aRefIt->first);
 799                 } else {
 800                   aData->removeBackReference(aFeatureSender, aRefIt->first);
 801                   added = true; // remove of concealment may be caused creation of some result
 802                 }
 803               }
 804             }
 805           }
 806         }
 807       }
 808     }
 809     if (added) {
 810       static Events_Loop* aLoop = Events_Loop::loop();
 811       static Events_ID kEventCreated = aLoop->eventByName(EVENT_OBJECT_CREATED);
 812       aLoop->flush(kEventCreated);
 813     }
 814   }
 815 }