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