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