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