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 <Model_AttributeSelection.h>
  12 #include <ModelAPI_Feature.h>
  13 #include <ModelAPI_Data.h>
  14 #include <ModelAPI_Document.h>
  15 #include <ModelAPI_Events.h>
  16 #include <ModelAPI_AttributeReference.h>
  17 #include <ModelAPI_AttributeRefList.h>
  18 #include <ModelAPI_AttributeRefAttr.h>
  19 #include <ModelAPI_AttributeSelection.h>
  20 #include <ModelAPI_AttributeSelectionList.h>
  21 #include <ModelAPI_Result.h>
  22 #include <ModelAPI_ResultPart.h>
  23 #include <ModelAPI_Validator.h>
  24 #include <ModelAPI_CompositeFeature.h>
  25 #include <ModelAPI_Session.h>
  26 #include <ModelAPI_Tools.h>
  27 #include <GeomAPI_Shape.h>
  28 #include <GeomDataAPI_Point.h>
  29 #include <GeomDataAPI_Point2D.h>
  30 #include <Events_Loop.h>
  31 #include <Events_LongOp.h>
  32 #include <Events_InfoMessage.h>
  33 #include <Config_PropManager.h>
  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   static const Events_ID kUpdatedSel = aLoop->eventByName(EVENT_UPDATE_SELECTION);
  62   aLoop->registerListener(this, kUpdatedSel);
  63
  64   //  Config_PropManager::findProp("Model update", "automatic_rebuild")->value() == "true";
  65   myIsParamUpdated = false;
  66   myIsFinish = false;
  67   myIsProcessed = false;
  68   myIsPreviewBlocked = false;
  69 }
  70
  71 bool Model_Update::addModified(FeaturePtr theFeature, FeaturePtr theReason) {
  72
  73   if (!theFeature->data()->isValid())
  74     return false; // delete an extrusion created on the sketch
  75
  76   bool isNotExecuted = theFeature->isPersistentResult() &&
  77     !std::dynamic_pointer_cast<Model_Document>((theFeature)->document())->executeFeatures();
  78   if (isNotExecuted) {
  79     if (!theReason.get()) // no reason => no construction reason
  80       return false;
  81     if (myNotPersistentRefs.find(theFeature) == myNotPersistentRefs.end()) {
  82       myNotPersistentRefs[theFeature].insert(theReason);
  83     } else {
  84       std::set<std::shared_ptr<ModelAPI_Feature> > aNewSet;
  85       aNewSet.insert(theReason);
  86       myNotPersistentRefs[theFeature] = aNewSet;
  87     }
  88     return false;
  89   }
  90
  91   // update arguments for "apply button" state change
  92   if ((!theFeature->isPreviewNeeded() && !myIsFinish) || myIsPreviewBlocked) {
  93     myProcessOnFinish.insert(theFeature);
  94 #ifdef DEB_UPDATE
  95       std::cout<<"*** Add process on finish "<<theFeature->name()<<std::endl;
  96 #endif
  97     // keeps the currently updated features to avoid infinitive cycling here: where feature on
  98     // "updateArguments" sends "updated" (in selection attribute) and goes here again
  99     static std::set<FeaturePtr> aCurrentlyUpdated;
 100     if (aCurrentlyUpdated.find(theFeature) == aCurrentlyUpdated.end()) {
 101       aCurrentlyUpdated.insert(theFeature);
 102       updateArguments(theFeature);
 103       aCurrentlyUpdated.erase(theFeature);
 104     }
 105     // make it without conditions otherwise the apply button may have a bad state
 106     theFeature->data()->execState(ModelAPI_StateDone);
 107     static ModelAPI_ValidatorsFactory* aFactory = ModelAPI_Session::get()->validators();
 108      // need to be validated to update the "Apply" state if not previewed
 109     aFactory->validate(theFeature);
 110
 111     // to redisplay split's arguments presentation, even result is not computed
 112     if (!theFeature->isPreviewNeeded()) {
 113       static Events_Loop* aLoop = Events_Loop::loop();
 114       static const Events_ID kRedisplayEvent = aLoop->eventByName(EVENT_OBJECT_TO_REDISPLAY);
 115       ModelAPI_EventCreator::get()->sendUpdated(theFeature, kRedisplayEvent);
 116       aLoop->flush(kRedisplayEvent);
 117     }
 118
 119     if (!myIsPreviewBlocked)
 120       return true;
 121   }
 122   if (myModified.find(theFeature) != myModified.end()) {
 123     if (theReason.get()) {
 124 #ifdef DEB_UPDATE
 125       //std::cout<<"*** Add already modified "
 126       //   <<theFeature->name()<<" reason "<<theReason->name()<<std::endl;
 127 #endif
 128       myModified[theFeature].insert(theReason);
 129     }
 130     return true;
 131   }
 132   // do not add the disabled, but possibly the sub-elements are not disabled
 133   bool aIsDisabled = theFeature->isDisabled();
 134   if (!aIsDisabled) {
 135     std::set<std::shared_ptr<ModelAPI_Feature> > aNewSet;
 136     if (theFeature->data()->execState() == ModelAPI_StateMustBeUpdated ||
 137         theFeature->data()->execState() == ModelAPI_StateInvalidArgument || // issue 1519
 138         theFeature->data()->execState() == ModelAPI_StateExecFailed) {
 139       // do not forget that in this case all were the reasons
 140       aNewSet.insert(theFeature);
 141     } else {
 142       if (theReason.get())
 143         aNewSet.insert(theReason);
 144     }
 145       myModified[theFeature] = aNewSet;
 146 #ifdef DEB_UPDATE
 147     if (theReason.get()) {
 148       //std::cout<<"*** Add modified "<<theFeature->name()
 149       //  <<" reason "<<theReason->name()<<std::endl;
 150     } else {
 151       //std::cout<<"*** Add modified "<<theFeature->name()<<std::endl;
 152     }
 153 #endif
 154   } else { // will be updated during the finish of the operation, or when it becomes enabled
 155     if (theFeature->data()->execState() == ModelAPI_StateDone ||
 156         theFeature->data()->execState() == ModelAPI_StateExecFailed) // fix issue 1819
 157       theFeature->data()->execState(ModelAPI_StateMustBeUpdated);
 158     else
 159       return true; // do not need iteration deeply if it is already marked as modified or so
 160 #ifdef DEB_UPDATE
 161     //std::cout<<"*** Set modified state "<<theFeature->name()<<std::endl;
 162 #endif
 163   }
 164   // clear processed and fill modified recursively
 165   const std::set<std::shared_ptr<ModelAPI_Attribute> >& aRefs = theFeature->data()->refsToMe();
 166   std::set<std::shared_ptr<ModelAPI_Attribute> >::const_iterator aRefIter = aRefs.cbegin();
 167   for(; aRefIter != aRefs.cend(); aRefIter++) {
 168     if ((*aRefIter)->isArgument()) {
 169       FeaturePtr aReferenced = std::dynamic_pointer_cast<ModelAPI_Feature>((*aRefIter)->owner());
 170       if (aReferenced.get()) {
 171         addModified(aReferenced, theFeature);
 172       }
 173     }
 174   }
 175   // proccess also results
 176   std::list<ResultPtr> allResults; // list of this feature and results
 177   ModelAPI_Tools::allResults(theFeature, allResults);
 178   std::list<ResultPtr>::iterator aRes = allResults.begin();
 179   for(; aRes != allResults.end(); aRes++) {
 180     const std::set<std::shared_ptr<ModelAPI_Attribute> >& aRefs = (*aRes)->data()->refsToMe();
 181     std::set<std::shared_ptr<ModelAPI_Attribute> >::const_iterator aRefIter = aRefs.cbegin();
 182     for(; aRefIter != aRefs.cend(); aRefIter++) {
 183       if ((*aRefIter)->isArgument()) {
 184         FeaturePtr aReferenced = std::dynamic_pointer_cast<ModelAPI_Feature>((*aRefIter)->owner());
 185         if (aReferenced.get()) {
 186           addModified(aReferenced, theFeature);
 187         }
 188       }
 189     }
 190   }
 191
 192   // also add part feature that contains this feature to the modified
 193   if (theFeature->document()->kind() != "PartSet") {
 194     FeaturePtr aPart = ModelAPI_Tools::findPartFeature(
 195       ModelAPI_Session::get()->moduleDocument(), theFeature->document());
 196     if (aPart.get())
 197       addModified(aPart, theFeature);
 198   }
 199   return true;
 200 }
 201
 202 void Model_Update::processEvent(const std::shared_ptr<Events_Message>& theMessage)
 203 {
 204   static Events_Loop* aLoop = Events_Loop::loop();
 205   static const Events_ID kCreatedEvent = aLoop->eventByName(EVENT_OBJECT_CREATED);
 206   static const Events_ID kUpdatedEvent = aLoop->eventByName(EVENT_OBJECT_UPDATED);
 207   static const Events_ID kOpFinishEvent = aLoop->eventByName("FinishOperation");
 208   static const Events_ID kOpAbortEvent = aLoop->eventByName("AbortOperation");
 209   static const Events_ID kOpStartEvent = aLoop->eventByName("StartOperation");
 210   static const Events_ID kStabilityEvent = aLoop->eventByName(EVENT_STABILITY_CHANGED);
 211   static const Events_ID kPreviewBlockedEvent = aLoop->eventByName(EVENT_PREVIEW_BLOCKED);
 212   static const Events_ID kPreviewRequestedEvent = aLoop->eventByName(EVENT_PREVIEW_REQUESTED);
 213   static const Events_ID kReorderEvent = aLoop->eventByName(EVENT_ORDER_UPDATED);
 214   static const Events_ID kRedisplayEvent = aLoop->eventByName(EVENT_OBJECT_TO_REDISPLAY);
 215   static const Events_ID kUpdatedSel = aLoop->eventByName(EVENT_UPDATE_SELECTION);
 216
 217 #ifdef DEB_UPDATE
 218   std::cout<<"****** Event "<<theMessage->eventID().eventText()<<std::endl;
 219 #endif
 220   if (theMessage->eventID() == kStabilityEvent) {
 221     updateStability(theMessage->sender());
 222     return;
 223   }
 224   if (theMessage->eventID() == kPreviewBlockedEvent) {
 225     myIsPreviewBlocked = true;
 226     return;
 227   }
 228   if (theMessage->eventID() == kPreviewRequestedEvent) {
 229     if (myIsPreviewBlocked) {
 230       myIsPreviewBlocked = false;
 231       processFeatures();
 232       myIsPreviewBlocked = true;
 233     }
 234     return;
 235   }
 236   if (theMessage->eventID() == kUpdatedSel) {
 237     std::shared_ptr<ModelAPI_ObjectUpdatedMessage> aMsg =
 238         std::dynamic_pointer_cast<ModelAPI_ObjectUpdatedMessage>(theMessage);
 239     updateSelection(aMsg->objects());
 240   }
 241   // creation is added to "update" to avoid recomputation twice:
 242   // on create and immediately after on update
 243   if (theMessage->eventID() == kCreatedEvent) {
 244     std::shared_ptr<ModelAPI_ObjectUpdatedMessage> aMsg =
 245         std::dynamic_pointer_cast<ModelAPI_ObjectUpdatedMessage>(theMessage);
 246     const std::set<ObjectPtr>& anObjs = aMsg->objects();
 247     std::set<ObjectPtr>::const_iterator anObjIter = anObjs.cbegin();
 248     for(; anObjIter != anObjs.cend(); anObjIter++) {
 249       if (std::dynamic_pointer_cast<Model_Document>((*anObjIter)->document())->executeFeatures()) {
 250         if ((*anObjIter)->groupName() == ModelAPI_Feature::group()) {
 251           // results creation means enabling, not update
 252           ModelAPI_EventCreator::get()->sendUpdated(*anObjIter, kUpdatedEvent);
 253         } else {
 254           ModelAPI_EventCreator::get()->sendUpdated(*anObjIter, kRedisplayEvent);
 255         }
 256       }
 257     }
 258     return;
 259   }
 260   if (theMessage->eventID() == kUpdatedEvent) {
 261     std::shared_ptr<ModelAPI_ObjectUpdatedMessage> aMsg =
 262         std::dynamic_pointer_cast<ModelAPI_ObjectUpdatedMessage>(theMessage);
 263     const std::set<ObjectPtr>& anObjs = aMsg->objects();
 264     std::set<ObjectPtr>::const_iterator anObjIter = anObjs.cbegin();
 265     bool aSomeModified = false; // check that features not changed: only redisplay is needed
 266     for(; anObjIter != anObjs.cend(); anObjIter++) {
 267       if (!(*anObjIter)->data()->isValid())
 268         continue;
 269 #ifdef DEB_UPDATE
 270       std::cout<<">>> in event updated "<<(*anObjIter)->groupName()<<
 271         " "<<(*anObjIter)->data()->name()<<std::endl;
 272 #endif
 273       if ((*anObjIter)->groupName() == ModelAPI_ResultParameter::group()) {
 274         myIsParamUpdated = true;
 275       }
 276       // on undo/redo, abort do not update persisten features
 277       FeaturePtr anUpdated = std::dynamic_pointer_cast<ModelAPI_Feature>(*anObjIter);
 278       if (anUpdated.get()) {
 279         if (addModified(anUpdated, FeaturePtr()))
 280           aSomeModified = true;
 281       } else {
 282         // process the updated result as update of features that refers to this result
 283         const std::set<std::shared_ptr<ModelAPI_Attribute> >&
 284           aRefs = (*anObjIter)->data()->refsToMe();
 285         std::set<std::shared_ptr<ModelAPI_Attribute> >::const_iterator aRefIter = aRefs.cbegin();
 286         for(; aRefIter != aRefs.cend(); aRefIter++) {
 287           if (!(*aRefIter)->owner()->data()->isValid())
 288             continue;
 289           FeaturePtr anUpdated = std::dynamic_pointer_cast<ModelAPI_Feature>((*aRefIter)->owner());
 290           if (anUpdated.get()) {
 291             if (addModified(anUpdated, FeaturePtr()))
 292               aSomeModified = true;
 293           }
 294         }
 295       }
 296     }
 297     // this event is for solver update, not here, do not react immediately
 298     if (aSomeModified) {
 299         processFeatures();
 300     }
 301   } else if (theMessage->eventID() == kOpFinishEvent || theMessage->eventID() == kOpAbortEvent ||
 302       theMessage->eventID() == kOpStartEvent) {
 303     myIsPreviewBlocked = false;
 304
 305     if (theMessage->eventID() == kOpFinishEvent) {
 306       myIsFinish = true;
 307       // add features that wait for finish as modified
 308       std::set<std::shared_ptr<ModelAPI_Feature> >::iterator aFeature = myProcessOnFinish.begin();
 309       for(; aFeature != myProcessOnFinish.end(); aFeature++)
 310         if ((*aFeature)->data()->isValid()) // there may be already removed wait for features
 311           addModified(*aFeature, FeaturePtr());
 312       myIsFinish = false;
 313     }
 314     // processed features must be only on finish, so clear anyway (to avoid reimport on load)
 315     myProcessOnFinish.clear();
 316
 317     // #2156: current must be sketch, left after the macro execution
 318     DocumentPtr anActiveDoc = ModelAPI_Session::get()->activeDocument();
 319     FeaturePtr aCurrent;
 320     if (anActiveDoc.get())
 321       aCurrent = anActiveDoc->currentFeature(false);
 322
 323     if (!(theMessage->eventID() == kOpStartEvent)) {
 324       processFeatures(false);
 325     }
 326
 327     if (anActiveDoc.get() && aCurrent.get() && aCurrent->data()->isValid()) {
 328       if (anActiveDoc->currentFeature(false) != aCurrent)
 329         anActiveDoc->setCurrentFeature(aCurrent, false); // #2156 make the current feature back
 330     }
 331
 332
 333     // remove all macros before clearing all created
 334     std::set<FeaturePtr>::iterator anUpdatedIter = myWaitForFinish.begin();
 335     while(anUpdatedIter != myWaitForFinish.end()) {
 336       FeaturePtr aFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(*anUpdatedIter);
 337       if (aFeature.get()) {
 338         // remove macro on finish
 339         if (aFeature->isMacro()) {
 340           aFeature->document()->removeFeature(aFeature);
 341           myWaitForFinish.erase(aFeature);
 342         }
 343         // to avoid the map update problems on "remove"
 344         if (myWaitForFinish.find(aFeature) == myWaitForFinish.end()) {
 345           anUpdatedIter = myWaitForFinish.begin();
 346         } else {
 347           anUpdatedIter++;
 348         }
 349       } else {
 350         anUpdatedIter++;
 351       }
 352     }
 353     // the redisplay signal should be flushed in order
 354     // to erase the feature presentation in the viewer
 355     // if should be done after removeFeature() of document,
 356     // by this reason, upper processFeatures() do not perform this flush
 357     Events_Loop::loop()->flush(kRedisplayEvent);
 358
 359     // in the end of transaction everything is updated, so clear the old objects
 360     myIsParamUpdated = false;
 361     myWaitForFinish.clear();
 362   } else if (theMessage->eventID() == kReorderEvent) {
 363     std::shared_ptr<ModelAPI_OrderUpdatedMessage> aMsg =
 364       std::dynamic_pointer_cast<ModelAPI_OrderUpdatedMessage>(theMessage);
 365     if (aMsg->reordered().get())
 366       addModified(aMsg->reordered(), aMsg->reordered()); // to update all attributes
 367   }
 368 }
 369
 370 void Model_Update::processFeatures(const bool theFlushRedisplay)
 371 {
 372    // perform update of everything if it is not performed right now or any preview is blocked
 373   if (!myIsProcessed && !myIsPreviewBlocked) {
 374     myIsProcessed = true;
 375     #ifdef DEB_UPDATE
 376       std::cout<<"****** Start processing"<<std::endl;
 377     #endif
 378
 379     while(!myModified.empty()) {
 380       processFeature(myModified.begin()->first);
 381     }
 382     myIsProcessed = false;
 383
 384     // to update the object browser if something is updated/created during executions
 385     static Events_Loop* aLoop = Events_Loop::loop();
 386     static const Events_ID kCreatedEvent= aLoop->eventByName(EVENT_OBJECT_CREATED);
 387     aLoop->flush(kCreatedEvent);
 388     static const Events_ID kUpdatedEvent = aLoop->eventByName(EVENT_OBJECT_UPDATED);
 389     aLoop->flush(kUpdatedEvent);
 390
 391     // flush to update display
 392     if (theFlushRedisplay) {
 393       static Events_ID EVENT_DISP = aLoop->eventByName(EVENT_OBJECT_TO_REDISPLAY);
 394       aLoop->flush(EVENT_DISP);
 395     }
 396     #ifdef DEB_UPDATE
 397       std::cout<<"****** End processing"<<std::endl;
 398     #endif
 399     myProcessed.clear();
 400   }
 401 }
 402
 403 // collects all the feautres this feature depends on: reasons
 404 static void allReasons(FeaturePtr theFeature, std::set<FeaturePtr>& theReasons) {
 405   std::list<std::pair<std::string, std::list<std::shared_ptr<ModelAPI_Object> > > > aDeps;
 406   theFeature->data()->referencesToObjects(aDeps);
 407   std::list<std::pair<std::string, std::list<std::shared_ptr<ModelAPI_Object> > > >::iterator
 408     anAttrsIter = aDeps.begin();
 409   for(; anAttrsIter != aDeps.end(); anAttrsIter++) {
 410     if (theFeature->attribute(anAttrsIter->first)->isArgument()) {
 411       std::list<std::shared_ptr<ModelAPI_Object> >::iterator aDepIter = anAttrsIter->second.begin();
 412       for(; aDepIter != anAttrsIter->second.end(); aDepIter++) {
 413         FeaturePtr aDepFeat = std::dynamic_pointer_cast<ModelAPI_Feature>(*aDepIter);
 414         if (!aDepFeat.get()) { // so, it depends on the result and process the feature owner of it
 415           ResultPtr aDepRes = std::dynamic_pointer_cast<ModelAPI_Result>(*aDepIter);
 416           if (aDepRes.get()) {
 417             aDepFeat = (*aDepIter)->document()->feature(aDepRes);
 418           }
 419         }
 420         if (aDepFeat.get() && aDepFeat->data()->isValid()) {
 421           theReasons.insert(aDepFeat);
 422         }
 423       }
 424     }
 425   }
 426   if (theFeature->getKind() == "Part") {
 427     // part is not depended on its subs directly, but subs must be iterated anyway
 428     CompositeFeaturePtr aPart = std::dynamic_pointer_cast<ModelAPI_CompositeFeature>(theFeature);
 429     int aNum = aPart->numberOfSubs();
 430     for(int a = 0; a < aNum; a++) {
 431       FeaturePtr aSub = aPart->subFeature(a);
 432       if (aSub.get() && aSub->data()->isValid()) {
 433         theReasons.insert(aSub);
 434       }
 435     }
 436   }
 437 }
 438
 439 bool Model_Update::processFeature(FeaturePtr theFeature)
 440 {
 441   static ModelAPI_ValidatorsFactory* aFactory = ModelAPI_Session::get()->validators();
 442
 443   if (!theFeature->data()->isValid()) { // deleted feature, just remove from all containers
 444     if (myModified.find(theFeature) != myModified.end())
 445       myModified.erase(theFeature);
 446     return false;
 447   }
 448
 449   if (theFeature->isPersistentResult()) {
 450     if (!std::dynamic_pointer_cast<Model_Document>((theFeature)->document())->executeFeatures())
 451       return false;
 452   }
 453
 454   if (myProcessed.find(theFeature) == myProcessed.end()) {
 455     myProcessed[theFeature] = 0;
 456   } else {
 457     int aCount = myProcessed[theFeature];
 458     if (aCount > 100) {
 459       // too many repetition of processing (in VS it may crash on 330 with stack overflow)
 460       Events_InfoMessage("Model_Update",
 461         "Feature '%1' is updated in infinitive loop").arg(theFeature->data()->name()).send();
 462       // to stop iteration
 463       myModified.clear();
 464       return false;
 465     }
 466     myProcessed[theFeature] = aCount + 1;
 467   }
 468
 469   // check this feature is not yet checked or processed
 470   bool aIsModified = myModified.find(theFeature) != myModified.end();
 471   if (!aIsModified && myIsFinish) { // get info about the modification for features without preview
 472     if (theFeature->data()->execState() == ModelAPI_StateMustBeUpdated) {
 473       aIsModified = true;
 474       std::set<std::shared_ptr<ModelAPI_Feature> > aNewSet;
 475       // contains itself, so, we don't know which was the reason and the reason is any
 476       aNewSet.insert(theFeature);
 477       myModified[theFeature] = aNewSet;
 478     }
 479   }
 480
 481 #ifdef DEB_UPDATE
 482     std::cout<<"* Process feature "<<theFeature->name()<<std::endl;
 483 #endif
 484
 485   // update the sketch plane before the sketch sub-elements are recomputed
 486   // (otherwise sketch will update plane, modify subs, after executed, but with old subs edges)
 487   if (aIsModified && theFeature->getKind() == "Sketch") {
 488 #ifdef DEB_UPDATE
 489     std::cout<<"****** Update sketch args "<<theFeature->name()<<std::endl;
 490 #endif
 491     AttributeSelectionPtr anExtSel = theFeature->selection("External");
 492     if (anExtSel.get()) {
 493       ResultPtr aContext = anExtSel->context();
 494       if (aContext.get() && aContext->document().get()) {
 495         FeaturePtr anExtBase = aContext->document()->feature(aContext);
 496         if (anExtBase.get()) {
 497           processFeature(anExtBase);
 498         }
 499       }
 500     }
 501     std::shared_ptr<GeomAPI_Shape> aShapeBefore = anExtSel->value();
 502     if (!aShapeBefore.get() && anExtSel->context()) aShapeBefore = anExtSel->context()->shape();
 503     updateArguments(theFeature);
 504     std::shared_ptr<GeomAPI_Shape> aShapeAfter = anExtSel->value();
 505     if (!aShapeAfter.get() && anExtSel->context()) aShapeAfter = anExtSel->context()->shape();
 506     // if selected plane is changed, try to re-take external references of all subs of the sketch
 507     if (aShapeBefore.get() && !aShapeBefore->isEqual(aShapeAfter)) {
 508       std::set<FeaturePtr> aWholeR;
 509       allReasons(theFeature, aWholeR);
 510       std::set<FeaturePtr>::iterator aRIter = aWholeR.begin();
 511       for(; aRIter != aWholeR.end(); aRIter++) {
 512         if ((*aRIter)->data()->selection("External"))
 513           (*aRIter)->attributeChanged("External");
 514       }
 515     }
 516   }
 517
 518   if (!aIsModified) { // no modification is needed
 519     return false;
 520   }
 521
 522   // evaluate parameter before the sub-elements update:
 523   // it updates dependencies on evaluation (#1085)
 524   if (theFeature->getKind() == "Parameter") {
 525     theFeature->execute();
 526   }
 527
 528   bool isReferencedInvalid = false;
 529   // check all features this feature depended on (recursive call of updateFeature)
 530   std::set<FeaturePtr>& aReasons = myModified[theFeature];
 531   bool allSubsUsed = aReasons.find(theFeature) != aReasons.end();
 532   if (allSubsUsed) {
 533     // add all subs in aReasons and temporary remove "theFeature" to avoid processing itself
 534     allReasons(theFeature, aReasons);
 535     aReasons.erase(theFeature);
 536   }
 537   // take reasons one by one (they may be added during the feature process
 538   // (circle by the radius of sketch)
 539   std::set<FeaturePtr> aProcessedReasons;
 540   while(!aReasons.empty()) {
 541     FeaturePtr aReason = *(aReasons.begin());
 542 #ifdef DEB_UPDATE
 543     //cout<<theFeature->name()<<" process next reason "<<aReason->name()<<endl;
 544 #endif
 545     if (aReason != theFeature && (aReason)->data()->isValid()) {
 546       if (processFeature(aReason))
 547         aIsModified = true;
 548       if (aReason->data()->execState() == ModelAPI_StateInvalidArgument)
 549         isReferencedInvalid = true;
 550     }
 551     // searching for the next not used reason
 552     aProcessedReasons.insert(aReason);
 553     aReasons.erase(aReason);
 554   }
 555   // restore the modified reasons: they will be used in the update of arguments
 556   if (allSubsUsed) { // restore theFeature in this set
 557     aProcessedReasons.insert(theFeature);
 558   }
 559   myModified[theFeature] = aProcessedReasons;
 560
 561   // do not execute the composite that contains the current
 562   bool isPostponedMain = false;
 563   CompositeFeaturePtr aCompos = std::dynamic_pointer_cast<ModelAPI_CompositeFeature>(theFeature);
 564   if (theFeature->getKind() == "ExtrusionSketch" && aCompos.get()) {
 565     CompositeFeaturePtr aCurrentOwner =
 566       ModelAPI_Tools::compositeOwner(theFeature->document()->currentFeature(false));
 567     isPostponedMain = aCurrentOwner.get() && aCompos->isSub(aCurrentOwner);
 568   }
 569
 570 #ifdef DEB_UPDATE
 571   std::cout<<"Update args "<<theFeature->name()<<std::endl;
 572 #endif
 573   // TestImport.py : after arguments are updated, theFeature may be removed
 574   if (!theFeature->data()->isValid())
 575     return false;
 576   // Update selection and parameters attributes first, before sub-features analysis (sketch plane).
 577   updateArguments(theFeature);
 578
 579   // add this feature to the processed right now to be able remove it from this list on
 580   // update signal during this feature execution
 581   myModified.erase(theFeature);
 582   if (myNotPersistentRefs.find(theFeature) != myNotPersistentRefs.end())
 583     myNotPersistentRefs.erase(theFeature);
 584   if (theFeature->data()->execState() == ModelAPI_StateMustBeUpdated)
 585     theFeature->data()->execState(ModelAPI_StateDone);
 586
 587   // this checking must be after the composite feature sub-elements processing:
 588   // composite feature status may depend on it's subelements
 589   if ((theFeature->data()->execState() == ModelAPI_StateInvalidArgument || isReferencedInvalid) &&
 590     theFeature->getKind() != "Part") {
 591       // don't disable Part because it will make disabled all the features
 592       // (performance and problems with the current feature)
 593   #ifdef DEB_UPDATE
 594     std::cout<<"Invalid args "<<theFeature->name()<<std::endl;
 595   #endif
 596     theFeature->eraseResults(false);
 597     redisplayWithResults(theFeature, ModelAPI_StateInvalidArgument); // result also must be updated
 598     return true; // so, feature is modified (results are erased)
 599   }
 600
 601   // execute feature if it must be updated
 602   ModelAPI_ExecState aState = theFeature->data()->execState();
 603   if (aFactory->validate(theFeature)) {
 604     if (!isPostponedMain) {
 605       executeFeature(theFeature);
 606     }
 607   } else {
 608     #ifdef DEB_UPDATE
 609       std::cout<<"Feature is not valid, erase results "<<theFeature->name()<<std::endl;
 610     #endif
 611     theFeature->eraseResults(false);
 612     redisplayWithResults(theFeature, ModelAPI_StateInvalidArgument); // result also must be updated
 613   }
 614   return true;
 615 }
 616
 617 void Model_Update::redisplayWithResults(FeaturePtr theFeature, const ModelAPI_ExecState theState)
 618 {
 619   // make updated and redisplay all results
 620   static Events_ID EVENT_DISP = Events_Loop::loop()->eventByName(EVENT_OBJECT_TO_REDISPLAY);
 621
 622   std::list<ResultPtr> allResults;
 623   ModelAPI_Tools::allResults(theFeature, allResults);
 624   std::list<ResultPtr>::iterator aRIter = allResults.begin();
 625   for (; aRIter != allResults.cend(); aRIter++) {
 626     std::shared_ptr<ModelAPI_Result> aRes = *aRIter;
 627     if (!aRes->isDisabled()) {
 628       // update state only for enabled results
 629       // (Placement Result Part may make the original Part Result as invalid)
 630       aRes->data()->execState(theState);
 631     }
 632     if (theFeature->data()->updateID() > aRes->data()->updateID()) {
 633       aRes->data()->setUpdateID(theFeature->data()->updateID());
 634     }
 635     ModelAPI_EventCreator::get()->sendUpdated(aRes, EVENT_DISP);
 636   }
 637   // to redisplay "presentable" feature (for ex. distance constraint)
 638   ModelAPI_EventCreator::get()->sendUpdated(theFeature, EVENT_DISP);
 639   theFeature->data()->execState(theState);
 640 }
 641
 642 /// Updates the state by the referenced object: if something bad with it, set state for this one
 643 ModelAPI_ExecState stateByReference(ObjectPtr theTarget, const ModelAPI_ExecState theCurrent)
 644 {
 645   if (theTarget) {
 646     ModelAPI_ExecState aRefState = theTarget->data()->execState();
 647     if (aRefState == ModelAPI_StateMustBeUpdated) {
 648       if (theCurrent == ModelAPI_StateDone)
 649         return ModelAPI_StateMustBeUpdated;
 650     } else if (aRefState != ModelAPI_StateDone) {
 651       return ModelAPI_StateInvalidArgument;
 652     }
 653   }
 654   return theCurrent;
 655 }
 656
 657 void Model_Update::updateArguments(FeaturePtr theFeature) {
 658   // perform this method also for disabled features: to make "not done" state for
 659   // features referenced to the active and modified features
 660   static ModelAPI_ValidatorsFactory* aFactory = ModelAPI_Session::get()->validators();
 661
 662   ModelAPI_ExecState aState = theFeature->data()->execState();
 663   if (aState == ModelAPI_StateExecFailed) { // try again failed feature: issue 577
 664     aState = ModelAPI_StateMustBeUpdated;
 665   }
 666   if (aState == ModelAPI_StateInvalidArgument) // a chance to be corrected
 667     aState = ModelAPI_StateMustBeUpdated;
 668   // check the parameters state
 669   // Integer
 670   {
 671     std::list<AttributePtr> anAttrinbutes =
 672       theFeature->data()->attributes(ModelAPI_AttributeInteger::typeId());
 673     std::list<AttributePtr>::iterator anIter = anAttrinbutes.begin();
 674     for(; anIter != anAttrinbutes.end(); anIter++) {
 675       AttributeIntegerPtr anAttribute =
 676         std::dynamic_pointer_cast<ModelAPI_AttributeInteger>(*anIter);
 677       if (anAttribute.get() && !anAttribute->text().empty()) {
 678         if (myIsParamUpdated) {
 679           ModelAPI_AttributeEvalMessage::send(anAttribute, this);
 680         }
 681         if (anAttribute->expressionInvalid()) {
 682           aState = ModelAPI_StateInvalidArgument;
 683         }
 684       }
 685     }
 686   }
 687   // Double
 688   {
 689     std::list<AttributePtr> aDoubles =
 690       theFeature->data()->attributes(ModelAPI_AttributeDouble::typeId());
 691     std::list<AttributePtr>::iterator aDoubleIter = aDoubles.begin();
 692     for(; aDoubleIter != aDoubles.end(); aDoubleIter++) {
 693       AttributeDoublePtr aDouble =
 694         std::dynamic_pointer_cast<ModelAPI_AttributeDouble>(*aDoubleIter);
 695       if (aDouble.get() && !aDouble->text().empty()) {
 696         if (myIsParamUpdated) {
 697           ModelAPI_AttributeEvalMessage::send(aDouble, this);
 698         }
 699         if (aDouble->expressionInvalid()) {
 700           aState = ModelAPI_StateInvalidArgument;
 701         }
 702       }
 703     }
 704   }
 705   // Point
 706   {
 707     std::list<AttributePtr> anAttributes =
 708       theFeature->data()->attributes(GeomDataAPI_Point::typeId());
 709     std::list<AttributePtr>::iterator anIter = anAttributes.begin();
 710     for(; anIter != anAttributes.end(); anIter++) {
 711       AttributePointPtr aPointAttribute =
 712         std::dynamic_pointer_cast<GeomDataAPI_Point>(*anIter);
 713       if (aPointAttribute.get() && (!aPointAttribute->textX().empty() ||
 714           !aPointAttribute->textY().empty() || !aPointAttribute->textZ().empty())) {
 715         if (myIsParamUpdated) {
 716           ModelAPI_AttributeEvalMessage::send(aPointAttribute, this);
 717         }
 718         if ((!aPointAttribute->textX().empty() && aPointAttribute->expressionInvalid(0)) ||
 719           (!aPointAttribute->textY().empty() && aPointAttribute->expressionInvalid(1)) ||
 720           (!aPointAttribute->textZ().empty() && aPointAttribute->expressionInvalid(2)))
 721           aState = ModelAPI_StateInvalidArgument;
 722       }
 723     }
 724   }
 725   // Point2D
 726   {
 727     std::list<AttributePtr> anAttributes =
 728       theFeature->data()->attributes(GeomDataAPI_Point2D::typeId());
 729     std::list<AttributePtr>::iterator anIter = anAttributes.begin();
 730     for(; anIter != anAttributes.end(); anIter++) {
 731       AttributePoint2DPtr aPoint2DAttribute =
 732         std::dynamic_pointer_cast<GeomDataAPI_Point2D>(*anIter);
 733       if (aPoint2DAttribute.get()) {
 734         if (myIsParamUpdated && (!aPoint2DAttribute->textX().empty() ||
 735             !aPoint2DAttribute->textY().empty())) {
 736           ModelAPI_AttributeEvalMessage::send(aPoint2DAttribute, this);
 737         }
 738         if ((!aPoint2DAttribute->textX().empty() && aPoint2DAttribute->expressionInvalid(0)) ||
 739           (!aPoint2DAttribute->textY().empty() && aPoint2DAttribute->expressionInvalid(1)))
 740           aState = ModelAPI_StateInvalidArgument;
 741       }
 742     }
 743   }
 744   // update the selection attributes if any
 745   std::list<AttributePtr> aRefs =
 746     theFeature->data()->attributes(ModelAPI_AttributeSelection::typeId());
 747   std::list<AttributePtr>::iterator aRefsIter = aRefs.begin();
 748   for (; aRefsIter != aRefs.end(); aRefsIter++) {
 749     std::shared_ptr<ModelAPI_AttributeSelection> aSel =
 750       std::dynamic_pointer_cast<ModelAPI_AttributeSelection>(*aRefsIter);
 751     ObjectPtr aContext = aSel->context();
 752     // update argument only if the referenced object is ready to use
 753     if (aContext.get() && !aContext->isDisabled()) {
 754       if (isReason(theFeature, aContext)) {
 755         if (!aSel->update()) { // this must be done on execution since it may be long operation
 756           bool isObligatory = !aFactory->isNotObligatory(
 757             theFeature->getKind(), theFeature->data()->id(aSel)) &&
 758             aFactory->isCase(theFeature, theFeature->data()->id(aSel));
 759           if (isObligatory)
 760             aState = ModelAPI_StateInvalidArgument;
 761         }
 762       }
 763     } else if (aContext.get()) {
 764       // here it may be not obligatory, but if the reference is wrong, it should not be correct
 765       bool isObligatory = aFactory->isCase(theFeature, theFeature->data()->id(aSel));
 766       if (isObligatory)
 767         aState = ModelAPI_StateInvalidArgument;
 768     }
 769   }
 770   // update the selection list attributes if any
 771   aRefs = theFeature->data()->attributes(ModelAPI_AttributeSelectionList::typeId());
 772   for (aRefsIter = aRefs.begin(); aRefsIter != aRefs.end(); aRefsIter++) {
 773     std::shared_ptr<ModelAPI_AttributeSelectionList> aSel =
 774       std::dynamic_pointer_cast<ModelAPI_AttributeSelectionList>(*aRefsIter);
 775     for(int a = aSel->size() - 1; a >= 0; a--) {
 776       std::shared_ptr<ModelAPI_AttributeSelection> aSelAttr =
 777         std::dynamic_pointer_cast<ModelAPI_AttributeSelection>(aSel->value(a));
 778       if (aSelAttr) {
 779         ObjectPtr aContext = aSelAttr->context();
 780         // update argument only if the referenced object is ready to use
 781         if (aContext.get() && !aContext->isDisabled()) {
 782           if (isReason(theFeature, aContext)) {
 783             if (!aSelAttr->update()) {
 784               bool isObligatory = !aFactory->isNotObligatory(
 785                 theFeature->getKind(), theFeature->data()->id(aSel)) &&
 786                 aFactory->isCase(theFeature, theFeature->data()->id(aSel));
 787               if (isObligatory)
 788                 aState = ModelAPI_StateInvalidArgument;
 789             }
 790           }
 791         } else if (aContext.get()) {
 792           // here it may be not obligatory, but if the reference is wrong, it should not be correct
 793           bool isObligatory = aFactory->isCase(theFeature, theFeature->data()->id(aSel));
 794           if (isObligatory)
 795             aState = ModelAPI_StateInvalidArgument;
 796         }
 797       }
 798     }
 799   }
 800
 801   if (aState != ModelAPI_StateDone)
 802     theFeature->data()->execState(aState);
 803 }
 804
 805 bool Model_Update::isReason(std::shared_ptr<ModelAPI_Feature>& theFeature,
 806      std::shared_ptr<ModelAPI_Object> theReason)
 807 {
 808   std::map<std::shared_ptr<ModelAPI_Feature>, std::set<std::shared_ptr<ModelAPI_Feature> > >
 809     ::iterator aReasonsIt = myModified.find(theFeature);
 810   if (aReasonsIt != myModified.end()) {
 811     if (aReasonsIt->second.find(theFeature) != aReasonsIt->second.end())
 812       return true; // any is reason if it contains itself
 813     FeaturePtr aReasFeat = std::dynamic_pointer_cast<ModelAPI_Feature>(theReason);
 814     if (!aReasFeat.get()) { // try to get feature of this result
 815       ResultPtr aReasRes = std::dynamic_pointer_cast<ModelAPI_Result>(theReason);
 816       if (aReasRes.get())
 817         aReasFeat = theReason->document()->feature(aReasRes);
 818     }
 819     if (aReasonsIt->second.find(aReasFeat) != aReasonsIt->second.end())
 820       return true;
 821   }
 822   // another try: postponed modification by not-persistences
 823   std::map<std::shared_ptr<ModelAPI_Feature>, std::set<std::shared_ptr<ModelAPI_Feature> > >
 824     ::iterator aNotPersist = myNotPersistentRefs.find(theFeature);
 825   if (aNotPersist != myNotPersistentRefs.end()) {
 826     FeaturePtr aReasFeat = std::dynamic_pointer_cast<ModelAPI_Feature>(theReason);
 827     if (!aReasFeat.get()) { // try to get feature of this result
 828       ResultPtr aReasRes = std::dynamic_pointer_cast<ModelAPI_Result>(theReason);
 829       if (aReasRes.get())
 830         aReasFeat = theReason->document()->feature(aReasRes);
 831     }
 832     if (aNotPersist->second.find(aReasFeat) != aNotPersist->second.end())
 833       return true;
 834   }
 835
 836   // this case only for not-previewed items update state, nothing is changed in args for it
 837   return false;
 838 }
 839
 840 void Model_Update::executeFeature(FeaturePtr theFeature)
 841 {
 842 #ifdef DEB_UPDATE
 843   std::cout<<"Execute Feature "<<theFeature->name()<<std::endl;
 844 #endif
 845   // execute in try-catch to avoid internal problems of the feature
 846   ModelAPI_ExecState aState = ModelAPI_StateDone;
 847   theFeature->data()->execState(ModelAPI_StateDone);
 848   try {
 849     theFeature->execute();
 850     if (theFeature->data()->execState() != ModelAPI_StateDone) {
 851       aState = ModelAPI_StateExecFailed;
 852     } else {
 853       aState = ModelAPI_StateDone;
 854     }
 855   } catch(...) {
 856     aState = ModelAPI_StateExecFailed;
 857     Events_InfoMessage("Model_Update",
 858       "Feature %1 has failed during the execution").arg(theFeature->getKind()).send();
 859   }
 860   // The macro feature has to be deleted in any case even its execution is failed
 861   myWaitForFinish.insert(theFeature);
 862   if (aState != ModelAPI_StateDone) {
 863     theFeature->eraseResults(false);
 864   }
 865   theFeature->data()->setUpdateID(ModelAPI_Session::get()->transactionID());
 866   redisplayWithResults(theFeature, aState);
 867 }
 868
 869 void Model_Update::updateStability(void* theSender)
 870 {
 871   static ModelAPI_ValidatorsFactory* aFactory = ModelAPI_Session::get()->validators();
 872   if (theSender) {
 873     bool added = false; // object may be was crated
 874     ModelAPI_Object* aSender = static_cast<ModelAPI_Object*>(theSender);
 875     if (aSender && aSender->document()) {
 876       FeaturePtr aFeatureSender =
 877         std::dynamic_pointer_cast<ModelAPI_Feature>(aSender->data()->owner());
 878       if (aFeatureSender.get()) {
 879         Model_Objects* aDocObjects =
 880           std::dynamic_pointer_cast<Model_Document>(aSender->document())->objects();
 881         if (aDocObjects) {
 882           //aDocObjects->synchronizeBackRefs();
 883           // remove or add all concealment refs from this feature
 884           std::list<std::pair<std::string, std::list<ObjectPtr> > > aRefs;
 885           aSender->data()->referencesToObjects(aRefs);
 886           std::list<std::pair<std::string, std::list<ObjectPtr> > >::iterator
 887             aRefIt = aRefs.begin();
 888           for(; aRefIt != aRefs.end(); aRefIt++) {
 889             if (!aFactory->isConcealed(aFeatureSender->getKind(), aRefIt->first))
 890               // take into account only concealed references
 891               // (do not remove the sketch constraint and the edge on constraint edit)
 892               continue;
 893             std::list<ObjectPtr>& aRefFeaturesList = aRefIt->second;
 894             std::list<ObjectPtr>::iterator aReferenced = aRefFeaturesList.begin();
 895             for(; aReferenced != aRefFeaturesList.end(); aReferenced++) {
 896                // stability is only on results: feature to feature reference mean nested
 897               // features, that will remove nesting references
 898               if (aReferenced->get() && (*aReferenced)->data()->isValid() &&
 899                 (*aReferenced)->groupName() != ModelAPI_Feature::group()) {
 900                 std::shared_ptr<Model_Data> aData =
 901                   std::dynamic_pointer_cast<Model_Data>((*aReferenced)->data());
 902                 if (aFeatureSender->isStable()) {
 903                   aData->addBackReference(aFeatureSender, aRefIt->first);
 904                 } else {
 905                   aData->removeBackReference(aFeatureSender, aRefIt->first);
 906                   added = true; // remove of concealment may be caused creation of some result
 907                 }
 908               }
 909             }
 910           }
 911         }
 912       }
 913     }
 914     if (added) {
 915       static Events_Loop* aLoop = Events_Loop::loop();
 916       static Events_ID kEventCreated = aLoop->eventByName(EVENT_OBJECT_CREATED);
 917       aLoop->flush(kEventCreated);
 918     }
 919   }
 920 }
 921
 922 void Model_Update::updateSelection(const std::set<std::shared_ptr<ModelAPI_Object> >& theObjects)
 923 {
 924   std::set<std::shared_ptr<ModelAPI_Object> >::iterator anObj = theObjects.begin();
 925   for(; anObj != theObjects.end(); anObj++) {
 926     std::list<AttributePtr> aRefs =
 927       (*anObj)->data()->attributes(ModelAPI_AttributeSelection::typeId());
 928     std::list<AttributePtr>::iterator aRefsIter = aRefs.begin();
 929     for (; aRefsIter != aRefs.end(); aRefsIter++) {
 930       std::shared_ptr<Model_AttributeSelection> aSel =
 931         std::dynamic_pointer_cast<Model_AttributeSelection>(*aRefsIter);
 932       aSel->updateInHistory();
 933     }
 934     // update the selection list attributes if any
 935     aRefs = (*anObj)->data()->attributes(ModelAPI_AttributeSelectionList::typeId());
 936     for (aRefsIter = aRefs.begin(); aRefsIter != aRefs.end(); aRefsIter++) {
 937       std::shared_ptr<ModelAPI_AttributeSelectionList> aSel =
 938         std::dynamic_pointer_cast<ModelAPI_AttributeSelectionList>(*aRefsIter);
 939       for(int a = aSel->size() - 1; a >= 0; a--) {
 940         std::shared_ptr<Model_AttributeSelection> aSelAttr =
 941           std::dynamic_pointer_cast<Model_AttributeSelection>(aSel->value(a));
 942         if (aSelAttr.get())
 943           aSelAttr->updateInHistory();
 944       }
 945     }
 946   }
 947 }