src/Model/Model_Update.cpp

   1 // Copyright (C) 2014-20xx CEA/DEN, EDF R&D
   2
   3 // File:        Model_Update.cxx
   4 // Created:     25 Jun 2014
   5 // Author:      Mikhail PONIKAROV
   6
   7 #include <Model_Update.h>
   8 #include <Model_Document.h>
   9 #include <Model_Data.h>
  10 #include <Model_Objects.h>
  11 #include <ModelAPI_Feature.h>
  12 #include <ModelAPI_Data.h>
  13 #include <ModelAPI_Document.h>
  14 #include <ModelAPI_Events.h>
  15 #include <ModelAPI_AttributeReference.h>
  16 #include <ModelAPI_AttributeRefList.h>
  17 #include <ModelAPI_AttributeRefAttr.h>
  18 #include <ModelAPI_AttributeSelection.h>
  19 #include <ModelAPI_AttributeSelectionList.h>
  20 #include <ModelAPI_Result.h>
  21 #include <ModelAPI_ResultPart.h>
  22 #include <ModelAPI_Validator.h>
  23 #include <ModelAPI_CompositeFeature.h>
  24 #include <ModelAPI_Session.h>
  25 #include <ModelAPI_Tools.h>
  26 #include <GeomDataAPI_Point.h>
  27 #include <GeomDataAPI_Point2D.h>
  28 #include <Events_Loop.h>
  29 #include <Events_LongOp.h>
  30 #include <Events_InfoMessage.h>
  31 #include <Config_PropManager.h>
  32
  33 using namespace std;
  34
  35 Model_Update MY_UPDATER_INSTANCE;  /// the only one instance initialized on load of the library
  36 //#define DEB_UPDATE
  37
  38 Model_Update::Model_Update()
  39 {
  40   Events_Loop* aLoop = Events_Loop::loop();
  41   static const Events_ID kChangedEvent = aLoop->eventByName("PreferenceChanged");
  42   aLoop->registerListener(this, kChangedEvent);
  43   static const Events_ID kCreatedEvent = Events_Loop::loop()->eventByName(EVENT_OBJECT_CREATED);
  44   aLoop->registerListener(this, kCreatedEvent);
  45   static const Events_ID kUpdatedEvent = Events_Loop::loop()->eventByName(EVENT_OBJECT_UPDATED);
  46   aLoop->registerListener(this, kUpdatedEvent);
  47   static const Events_ID kOpFinishEvent = aLoop->eventByName("FinishOperation");
  48   aLoop->registerListener(this, kOpFinishEvent);
  49   static const Events_ID kOpAbortEvent = aLoop->eventByName("AbortOperation");
  50   aLoop->registerListener(this, kOpAbortEvent);
  51   static const Events_ID kOpStartEvent = aLoop->eventByName("StartOperation");
  52   aLoop->registerListener(this, kOpStartEvent);
  53   static const Events_ID kStabilityEvent = aLoop->eventByName(EVENT_STABILITY_CHANGED);
  54   aLoop->registerListener(this, kStabilityEvent);
  55   static const Events_ID kPreviewBlockedEvent = aLoop->eventByName(EVENT_PREVIEW_BLOCKED);
  56   aLoop->registerListener(this, kPreviewBlockedEvent);
  57   static const Events_ID kPreviewRequestedEvent = aLoop->eventByName(EVENT_PREVIEW_REQUESTED);
  58   aLoop->registerListener(this, kPreviewRequestedEvent);
  59
  60   //  Config_PropManager::findProp("Model update", "automatic_rebuild")->value() == "true";
  61   myIsParamUpdated = false;
  62   myIsFinish = false;
  63   myIsProcessed = false;
  64   myIsPreviewBlocked = false;
  65 }
  66
  67 bool Model_Update::addModified(FeaturePtr theFeature, FeaturePtr theReason) {
  68
  69   if (!theFeature->data()->isValid())
  70     return false; // delete an extrusion created on the sketch
  71
  72   if (theFeature->isPersistentResult()) {
  73     if (!std::dynamic_pointer_cast<Model_Document>((theFeature)->document())->executeFeatures())
  74       return false;
  75   }
  76
  77   // update arguments for "apply button" state change
  78   if ((!theFeature->isPreviewNeeded() && !myIsFinish) || myIsPreviewBlocked) {
  79     myProcessOnFinish.insert(theFeature);
  80 #ifdef DEB_UPDATE
  81       std::cout<<"*** Add process on finish "<<theFeature->name()<<std::endl;
  82 #endif
  83     // keeps the currently updated features to avoid infinitive cycling here: where feature on
  84     // "updateArguments" sends "updated" (in selection attribute) and goes here again
  85     static std::set<FeaturePtr> aCurrentlyUpdated;
  86     if (aCurrentlyUpdated.find(theFeature) == aCurrentlyUpdated.end()) {
  87       aCurrentlyUpdated.insert(theFeature);
  88       updateArguments(theFeature);
  89       aCurrentlyUpdated.erase(theFeature);
  90     }
  91     // make it without conditions otherwise the apply button may have a bad state
  92     theFeature->data()->execState(ModelAPI_StateDone);
  93     static ModelAPI_ValidatorsFactory* aFactory = ModelAPI_Session::get()->validators();
  94     aFactory->validate(theFeature); // need to be validated to update the "Apply" state if not previewed
  95
  96     if (!myIsPreviewBlocked)
  97       return true;
  98   }
  99   if (myModified.find(theFeature) != myModified.end()) {
 100     if (theReason.get()) {
 101 #ifdef DEB_UPDATE
 102       std::cout<<"*** Add already modified "<<theFeature->name()<<" reason "<<theReason->name()<<std::endl;
 103 #endif
 104       myModified[theFeature].insert(theReason);
 105     }
 106     return true;
 107   }
 108   // do not add the disabled, but possibly the sub-elements are not disabled
 109   bool aIsDisabled = theFeature->isDisabled();
 110   if (!aIsDisabled) {
 111     std::set<std::shared_ptr<ModelAPI_Feature> > aNewSet;
 112     if (theFeature->data()->execState() == ModelAPI_StateMustBeUpdated ||
 113         theFeature->data()->execState() == ModelAPI_StateInvalidArgument) { // issue 1519
 114       // do not forget that in this case all were the reasons
 115       aNewSet.insert(theFeature);
 116     } else {
 117       if (theReason.get())
 118         aNewSet.insert(theReason);
 119     }
 120     myModified[theFeature] = aNewSet;
 121 #ifdef DEB_UPDATE
 122     if (theReason.get())
 123       std::cout<<"*** Add modified "<<theFeature->name()<<" reason "<<theReason->name()<<std::endl;
 124     else
 125       std::cout<<"*** Add modified "<<theFeature->name()<<std::endl;
 126 #endif
 127   } else { // will be updated during the finish of the operation, or when it becomes enabled
 128     if (theFeature->data()->execState() == ModelAPI_StateDone)
 129       theFeature->data()->execState(ModelAPI_StateMustBeUpdated);
 130     else
 131       return true; // do not need iteration deeply if it is already marked as modified or so
 132 #ifdef DEB_UPDATE
 133     std::cout<<"*** Set modified state "<<theFeature->name()<<std::endl;
 134 #endif
 135   }
 136   // clear processed and fill modified recursively
 137   const std::set<std::shared_ptr<ModelAPI_Attribute> >& aRefs = theFeature->data()->refsToMe();
 138   std::set<std::shared_ptr<ModelAPI_Attribute> >::const_iterator aRefIter = aRefs.cbegin();
 139   for(; aRefIter != aRefs.cend(); aRefIter++) {
 140     if ((*aRefIter)->isArgument()) {
 141       FeaturePtr aReferenced = std::dynamic_pointer_cast<ModelAPI_Feature>((*aRefIter)->owner());
 142       if (aReferenced.get()) {
 143         addModified(aReferenced, theFeature);
 144       }
 145     }
 146   }
 147   // proccess also results
 148   std::list<ResultPtr> allResults; // list of this feature and results
 149   ModelAPI_Tools::allResults(theFeature, allResults);
 150   std::list<ResultPtr>::iterator aRes = allResults.begin();
 151   for(; aRes != allResults.end(); aRes++) {
 152     const std::set<std::shared_ptr<ModelAPI_Attribute> >& aRefs = (*aRes)->data()->refsToMe();
 153     std::set<std::shared_ptr<ModelAPI_Attribute> >::const_iterator aRefIter = aRefs.cbegin();
 154     for(; aRefIter != aRefs.cend(); aRefIter++) {
 155       if ((*aRefIter)->isArgument()) {
 156         FeaturePtr aReferenced = std::dynamic_pointer_cast<ModelAPI_Feature>((*aRefIter)->owner());
 157         if (aReferenced.get()) {
 158           addModified(aReferenced, theFeature);
 159         }
 160       }
 161     }
 162   }
 163
 164   // also add part feature that contains this feature to the modified
 165   if (theFeature->document()->kind() != "PartSet") {
 166     FeaturePtr aPart = ModelAPI_Tools::findPartFeature(
 167       ModelAPI_Session::get()->moduleDocument(), theFeature->document());
 168     if (aPart.get())
 169       addModified(aPart, theFeature);
 170   }
 171   return true;
 172 }
 173
 174 void Model_Update::processEvent(const std::shared_ptr<Events_Message>& theMessage)
 175 {
 176   static Events_Loop* aLoop = Events_Loop::loop();
 177   static const Events_ID kCreatedEvent = aLoop->eventByName(EVENT_OBJECT_CREATED);
 178   static const Events_ID kUpdatedEvent = aLoop->eventByName(EVENT_OBJECT_UPDATED);
 179   static const Events_ID kOpFinishEvent = aLoop->eventByName("FinishOperation");
 180   static const Events_ID kOpAbortEvent = aLoop->eventByName("AbortOperation");
 181   static const Events_ID kOpStartEvent = aLoop->eventByName("StartOperation");
 182   static const Events_ID kStabilityEvent = aLoop->eventByName(EVENT_STABILITY_CHANGED);
 183   static const Events_ID kPreviewBlockedEvent = aLoop->eventByName(EVENT_PREVIEW_BLOCKED);
 184   static const Events_ID kPreviewRequestedEvent = aLoop->eventByName(EVENT_PREVIEW_REQUESTED);
 185
 186 #ifdef DEB_UPDATE
 187   std::cout<<"****** Event "<<theMessage->eventID().eventText()<<std::endl;
 188 #endif
 189   if (theMessage->eventID() == kStabilityEvent) {
 190     updateStability(theMessage->sender());
 191     return;
 192   }
 193   if (theMessage->eventID() == kPreviewBlockedEvent) {
 194     myIsPreviewBlocked = true;
 195     return;
 196   }
 197   if (theMessage->eventID() == kPreviewRequestedEvent) {
 198     if (myIsPreviewBlocked) {
 199       myIsPreviewBlocked = false;
 200       processFeatures();
 201       myIsPreviewBlocked = true;
 202     }
 203     return;
 204   }
 205   // creation is added to "update" to avoid recomputation twice: on create and immediately after on update
 206   if (theMessage->eventID() == kCreatedEvent) {
 207     std::shared_ptr<ModelAPI_ObjectUpdatedMessage> aMsg =
 208         std::dynamic_pointer_cast<ModelAPI_ObjectUpdatedMessage>(theMessage);
 209     const std::set<ObjectPtr>& anObjs = aMsg->objects();
 210     std::set<ObjectPtr>::const_iterator anObjIter = anObjs.cbegin();
 211     for(; anObjIter != anObjs.cend(); anObjIter++) {
 212       if (std::dynamic_pointer_cast<Model_Document>((*anObjIter)->document())->executeFeatures())
 213         ModelAPI_EventCreator::get()->sendUpdated(*anObjIter, kUpdatedEvent);
 214     }
 215     return;
 216   }
 217   if (theMessage->eventID() == kUpdatedEvent) {
 218     std::shared_ptr<ModelAPI_ObjectUpdatedMessage> aMsg =
 219         std::dynamic_pointer_cast<ModelAPI_ObjectUpdatedMessage>(theMessage);
 220     const std::set<ObjectPtr>& anObjs = aMsg->objects();
 221     std::set<ObjectPtr>::const_iterator anObjIter = anObjs.cbegin();
 222     bool aSomeModified = false; // check that features not changed: only redisplay is needed
 223     for(; anObjIter != anObjs.cend(); anObjIter++) {
 224       if (!(*anObjIter)->data()->isValid())
 225         continue;
 226 #ifdef DEB_UPDATE
 227       std::cout<<">>> in event updated "<<(*anObjIter)->groupName()<<" "<<(*anObjIter)->data()->name()<<std::endl;
 228 #endif
 229       if ((*anObjIter)->groupName() == ModelAPI_ResultParameter::group()) {
 230         myIsParamUpdated = true;
 231       }
 232       // on undo/redo, abort do not update persisten features
 233       FeaturePtr anUpdated = std::dynamic_pointer_cast<ModelAPI_Feature>(*anObjIter);
 234       if (anUpdated.get()) {
 235         if (addModified(anUpdated, FeaturePtr()))
 236           aSomeModified = true;
 237       } else { // process the updated result as update of features that refers to this result
 238         const std::set<std::shared_ptr<ModelAPI_Attribute> >& aRefs = (*anObjIter)->data()->refsToMe();
 239         std::set<std::shared_ptr<ModelAPI_Attribute> >::const_iterator aRefIter = aRefs.cbegin();
 240         for(; aRefIter != aRefs.cend(); aRefIter++) {
 241           if (!(*aRefIter)->owner()->data()->isValid())
 242             continue;
 243           FeaturePtr anUpdated = std::dynamic_pointer_cast<ModelAPI_Feature>((*aRefIter)->owner());
 244           if (anUpdated.get()) {
 245             if (addModified(anUpdated, FeaturePtr()))
 246               aSomeModified = true;
 247           }
 248         }
 249       }
 250     }
 251     // this event is for solver update, not here, do not react immediately
 252     if (aSomeModified) {
 253         processFeatures();
 254     }
 255   } else if (theMessage->eventID() == kOpFinishEvent || theMessage->eventID() == kOpAbortEvent ||
 256       theMessage->eventID() == kOpStartEvent) {
 257     myIsPreviewBlocked = false;
 258
 259     if (theMessage->eventID() == kOpFinishEvent) {
 260       myIsFinish = true;
 261       // add features that wait for finish as modified
 262       std::set<std::shared_ptr<ModelAPI_Feature> >::iterator aFeature = myProcessOnFinish.begin();
 263       for(; aFeature != myProcessOnFinish.end(); aFeature++)
 264         if ((*aFeature)->data()->isValid()) // there may be already removed wait for features
 265           addModified(*aFeature, FeaturePtr());
 266       myIsFinish = false;
 267     }
 268     myProcessOnFinish.clear(); // processed features must be only on finish, so clear anyway (to avoid reimport on load)
 269
 270     if (!(theMessage->eventID() == kOpStartEvent)) {
 271       processFeatures(false);
 272     }
 273     // remove all macros before clearing all created
 274     std::set<FeaturePtr>::iterator anUpdatedIter = myWaitForFinish.begin();
 275     while(anUpdatedIter != myWaitForFinish.end()) {
 276       FeaturePtr aFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(*anUpdatedIter);
 277       if (aFeature.get()) {
 278         // remove macro on finish
 279         if (aFeature->isMacro()) {
 280           aFeature->document()->removeFeature(aFeature);
 281           myWaitForFinish.erase(aFeature);
 282         }
 283         // to avoid the map update problems on "remove"
 284         if (myWaitForFinish.find(aFeature) == myWaitForFinish.end()) {
 285           anUpdatedIter = myWaitForFinish.begin();
 286         } else {
 287           anUpdatedIter++;
 288         }
 289       } else {
 290         anUpdatedIter++;
 291       }
 292     }
 293     // the redisplay signal should be flushed in order to erase the feature presentation in the viewer
 294     // if should be done after removeFeature() of document,
 295     // by this reason, upper processFeatures() do not perform this flush
 296     Events_Loop::loop()->flush(Events_Loop::loop()->eventByName(EVENT_OBJECT_TO_REDISPLAY));
 297
 298     // in the end of transaction everything is updated, so clear the old objects
 299     myIsParamUpdated = false;
 300     myWaitForFinish.clear();
 301   }
 302 }
 303
 304 void Model_Update::processFeatures(const bool theFlushRedisplay)
 305 {
 306    // perform update of everything if it is not performed right now or any preview is blocked
 307   if (!myIsProcessed && !myIsPreviewBlocked) {
 308     myIsProcessed = true;
 309     #ifdef DEB_UPDATE
 310       std::cout<<"****** Start processing"<<std::endl;
 311     #endif
 312
 313     while(!myModified.empty()) {
 314       processFeature(myModified.begin()->first);
 315     }
 316     myIsProcessed = false;
 317
 318     // to update the object browser if something is updated/created during executions
 319     static Events_Loop* aLoop = Events_Loop::loop();
 320     static const Events_ID kCreatedEvent= aLoop->eventByName(EVENT_OBJECT_CREATED);
 321     aLoop->flush(kCreatedEvent);
 322     static const Events_ID kUpdatedEvent = aLoop->eventByName(EVENT_OBJECT_UPDATED);
 323     aLoop->flush(kUpdatedEvent);
 324
 325     // flush to update display
 326     if (theFlushRedisplay) {
 327       static Events_ID EVENT_DISP = aLoop->eventByName(EVENT_OBJECT_TO_REDISPLAY);
 328       aLoop->flush(EVENT_DISP);
 329     }
 330     #ifdef DEB_UPDATE
 331       std::cout<<"****** End processing"<<std::endl;
 332     #endif
 333     myProcessed.clear();
 334   }
 335 }
 336
 337 // collects all the feautres this feature depends on: reasons
 338 static void allReasons(FeaturePtr theFeature, std::set<FeaturePtr>& theReasons) {
 339   std::list<std::pair<std::string, std::list<std::shared_ptr<ModelAPI_Object> > > > aDeps;
 340   theFeature->data()->referencesToObjects(aDeps);
 341   std::list<std::pair<std::string, std::list<std::shared_ptr<ModelAPI_Object> > > >::iterator
 342     anAttrsIter = aDeps.begin();
 343   for(; anAttrsIter != aDeps.end(); anAttrsIter++) {
 344     if (theFeature->attribute(anAttrsIter->first)->isArgument()) {
 345       std::list<std::shared_ptr<ModelAPI_Object> >::iterator aDepIter = anAttrsIter->second.begin();
 346       for(; aDepIter != anAttrsIter->second.end(); aDepIter++) {
 347         FeaturePtr aDepFeat = std::dynamic_pointer_cast<ModelAPI_Feature>(*aDepIter);
 348         if (!aDepFeat.get()) { // so, it depends on the result and process the feature owner of it
 349           ResultPtr aDepRes = std::dynamic_pointer_cast<ModelAPI_Result>(*aDepIter);
 350           if (aDepRes.get()) {
 351             aDepFeat = (*aDepIter)->document()->feature(aDepRes);
 352           }
 353         }
 354         if (aDepFeat.get() && aDepFeat->data()->isValid()) {
 355           theReasons.insert(aDepFeat);
 356         }
 357       }
 358     }
 359   }
 360   if (theFeature->getKind() == "Part") { // part is not depended on its subs directly, but subs must be iterated anyway
 361     CompositeFeaturePtr aPart = std::dynamic_pointer_cast<ModelAPI_CompositeFeature>(theFeature);
 362     int aNum = aPart->numberOfSubs();
 363     for(int a = 0; a < aNum; a++) {
 364       FeaturePtr aSub = aPart->subFeature(a);
 365       if (aSub.get() && aSub->data()->isValid()) {
 366         theReasons.insert(aSub);
 367       }
 368     }
 369   }
 370 }
 371
 372 bool Model_Update::processFeature(FeaturePtr theFeature)
 373 {
 374   static ModelAPI_ValidatorsFactory* aFactory = ModelAPI_Session::get()->validators();
 375
 376   if (!theFeature->data()->isValid()) { // deleted feature, just remove from all containers
 377     if (myModified.find(theFeature) != myModified.end())
 378       myModified.erase(theFeature);
 379     return false;
 380   }
 381
 382   if (theFeature->isPersistentResult()) {
 383     if (!std::dynamic_pointer_cast<Model_Document>((theFeature)->document())->executeFeatures())
 384       return false;
 385   }
 386
 387   if (myProcessed.find(theFeature) == myProcessed.end()) {
 388     myProcessed[theFeature] = 0;
 389   } else {
 390     int aCount = myProcessed[theFeature];
 391     if (aCount > 100) { // too many repetition of processing (in VS it may crash on 330 with stack overflow)
 392       Events_InfoMessage("Model_Update",
 393         "Feature '%1' is updated in infinitive loop").arg(theFeature->data()->name()).send();
 394       return false;
 395     }
 396     myProcessed[theFeature] = aCount + 1;
 397   }
 398
 399   // check this feature is not yet checked or processed
 400   bool aIsModified = myModified.find(theFeature) != myModified.end();
 401   if (!aIsModified && myIsFinish) { // get info about the modification for features without preview
 402     if (theFeature->data()->execState() == ModelAPI_StateMustBeUpdated) {
 403       aIsModified = true;
 404       std::set<std::shared_ptr<ModelAPI_Feature> > aNewSet;
 405       aNewSet.insert(theFeature); // contains itself, so, we don't know which was the reason and the reason is any
 406       myModified[theFeature] = aNewSet;
 407     }
 408   }
 409
 410 #ifdef DEB_UPDATE
 411     std::cout<<"* Process feature "<<theFeature->name()<<std::endl;
 412 #endif
 413
 414   // update the sketch plane before the sketch sub-elements are recomputed
 415   // (otherwise sketch will update plane, modify subs, after executed, but with old subs edges)
 416   if (aIsModified && theFeature->getKind() == "Sketch") {
 417 #ifdef DEB_UPDATE
 418     std::cout<<"****** Update sketch args "<<theFeature->name()<<std::endl;
 419 #endif
 420     AttributeSelectionPtr anExtSel = theFeature->selection("External");
 421     if (anExtSel.get()) {
 422       ResultPtr aContext = anExtSel->context();
 423       if (aContext.get() && aContext->document().get()) {
 424         FeaturePtr anExtBase = aContext->document()->feature(aContext);
 425         if (anExtBase.get()) {
 426           processFeature(anExtBase);
 427         }
 428       }
 429     }
 430     updateArguments(theFeature);
 431   }
 432
 433   if (!aIsModified) { // no modification is needed
 434     return false;
 435   }
 436
 437   // evaluate parameter before the sub-elements update: it updates dependencies on evaluation (#1085)
 438   if (theFeature->getKind() == "Parameter") {
 439     theFeature->execute();
 440   }
 441
 442   bool isReferencedInvalid = false;
 443   // check all features this feature depended on (recursive call of updateFeature)
 444   std::set<FeaturePtr>& aReasons = myModified[theFeature];
 445   bool allSubsUsed = aReasons.find(theFeature) != aReasons.end();
 446   if (allSubsUsed) { // add all subs in aReasons and temporary remove "theFeature" to avoid processing itself
 447     allReasons(theFeature, aReasons);
 448     aReasons.erase(theFeature);
 449   }
 450   // take reasons one by one (they may be added during the feature process (circle by the radius of sketch)
 451   std::set<FeaturePtr> aProcessedReasons;
 452   while(!aReasons.empty()) {
 453     FeaturePtr aReason = *(aReasons.begin());
 454 #ifdef DEB_UPDATE
 455     //cout<<theFeature->name()<<" process next reason "<<aReason->name()<<endl;
 456 #endif
 457     if (aReason != theFeature && (aReason)->data()->isValid()) {
 458       if (processFeature(aReason))
 459         aIsModified = true;
 460       if (aReason->data()->execState() == ModelAPI_StateInvalidArgument)
 461         isReferencedInvalid = true;
 462     }
 463     // searching for the next not used reason
 464     aProcessedReasons.insert(aReason);
 465     aReasons.erase(aReason);
 466   }
 467   // restore the modified reasons: they will be used in the update of arguments
 468   if (allSubsUsed) { // restore theFeature in this set
 469     aProcessedReasons.insert(theFeature);
 470   }
 471   myModified[theFeature] = aProcessedReasons;
 472
 473   // do not execute the composite that contains the current
 474   bool isPostponedMain = false;
 475   CompositeFeaturePtr aCompos = std::dynamic_pointer_cast<ModelAPI_CompositeFeature>(theFeature);
 476   if (theFeature->getKind() == "ExtrusionSketch" && aCompos.get()) {
 477     CompositeFeaturePtr aCurrentOwner =
 478       ModelAPI_Tools::compositeOwner(theFeature->document()->currentFeature(false));
 479     isPostponedMain = aCurrentOwner.get() && aCompos->isSub(aCurrentOwner);
 480   }
 481
 482   #ifdef DEB_UPDATE
 483     std::cout<<"Update args "<<theFeature->name()<<std::endl;
 484   #endif
 485   // Update selection and parameters attributes first, before sub-features analysis (sketch plane).
 486   updateArguments(theFeature);
 487
 488   // add this feature to the processed right now to be able remove it from this list on
 489   // update signal during this feature execution
 490   myModified.erase(theFeature);
 491   if (theFeature->data()->execState() == ModelAPI_StateMustBeUpdated)
 492     theFeature->data()->execState(ModelAPI_StateDone);
 493
 494   // this checking must be after the composite feature sub-elements processing:
 495   // composite feature status may depend on it's subelements
 496   if ((theFeature->data()->execState() == ModelAPI_StateInvalidArgument || isReferencedInvalid) &&
 497     theFeature->getKind() != "Part") { // don't disable Part because it will make disabled all the features (performance and problems with the current feature)
 498   #ifdef DEB_UPDATE
 499     std::cout<<"Invalid args "<<theFeature->name()<<std::endl;
 500   #endif
 501     theFeature->eraseResults();
 502     redisplayWithResults(theFeature, ModelAPI_StateInvalidArgument); // result also must be updated
 503     return true; // so, feature is modified (results are erased)
 504   }
 505
 506   // execute feature if it must be updated
 507   ModelAPI_ExecState aState = theFeature->data()->execState();
 508   if (aFactory->validate(theFeature)) {
 509     if (!isPostponedMain) {
 510       executeFeature(theFeature);
 511     }
 512   } else {
 513     #ifdef DEB_UPDATE
 514       std::cout<<"Feature is not valid, erase results "<<theFeature->name()<<std::endl;
 515     #endif
 516     theFeature->eraseResults();
 517     redisplayWithResults(theFeature, ModelAPI_StateInvalidArgument); // result also must be updated
 518   }
 519   return true;
 520 }
 521
 522 void Model_Update::redisplayWithResults(FeaturePtr theFeature, const ModelAPI_ExecState theState)
 523 {
 524   // make updated and redisplay all results
 525   static Events_ID EVENT_DISP = Events_Loop::loop()->eventByName(EVENT_OBJECT_TO_REDISPLAY);
 526
 527   std::list<ResultPtr> allResults;
 528   ModelAPI_Tools::allResults(theFeature, allResults);
 529   std::list<ResultPtr>::iterator aRIter = allResults.begin();
 530   for (; aRIter != allResults.cend(); aRIter++) {
 531     std::shared_ptr<ModelAPI_Result> aRes = *aRIter;
 532     if (!aRes->isDisabled()) {// update state only for enabled results (Placement Result Part may make the original Part Result as invalid)
 533       aRes->data()->execState(theState);
 534     }
 535     if (theFeature->data()->updateID() > aRes->data()->updateID()) {
 536       aRes->data()->setUpdateID(theFeature->data()->updateID());
 537     }
 538     ModelAPI_EventCreator::get()->sendUpdated(aRes, EVENT_DISP);
 539   }
 540   // to redisplay "presentable" feature (for ex. distance constraint)
 541   ModelAPI_EventCreator::get()->sendUpdated(theFeature, EVENT_DISP);
 542   theFeature->data()->execState(theState);
 543 }
 544
 545 /// Updates the state by the referenced object: if something bad with it, set state for this one
 546 ModelAPI_ExecState stateByReference(ObjectPtr theTarget, const ModelAPI_ExecState theCurrent)
 547 {
 548   if (theTarget) {
 549     ModelAPI_ExecState aRefState = theTarget->data()->execState();
 550     if (aRefState == ModelAPI_StateMustBeUpdated) {
 551       if (theCurrent == ModelAPI_StateDone)
 552         return ModelAPI_StateMustBeUpdated;
 553     } else if (aRefState != ModelAPI_StateDone) {
 554       return ModelAPI_StateInvalidArgument;
 555     }
 556   }
 557   return theCurrent;
 558 }
 559
 560 void Model_Update::updateArguments(FeaturePtr theFeature) {
 561   // perform this method also for disabled features: to make "not done" state for
 562   // features referenced to the active and modified features
 563
 564   static ModelAPI_ValidatorsFactory* aFactory = ModelAPI_Session::get()->validators();
 565
 566   ModelAPI_ExecState aState = theFeature->data()->execState();
 567   if (aState == ModelAPI_StateExecFailed) { // try again failed feature: issue 577
 568     aState = ModelAPI_StateMustBeUpdated;
 569   }
 570   if (aState == ModelAPI_StateInvalidArgument) // a chance to be corrected
 571     aState = ModelAPI_StateMustBeUpdated;
 572   // check the parameters state
 573   // Integer
 574   {
 575     std::list<AttributePtr> anAttrinbutes =
 576       theFeature->data()->attributes(ModelAPI_AttributeInteger::typeId());
 577     std::list<AttributePtr>::iterator anIter = anAttrinbutes.begin();
 578     for(; anIter != anAttrinbutes.end(); anIter++) {
 579       AttributeIntegerPtr anAttribute =
 580         std::dynamic_pointer_cast<ModelAPI_AttributeInteger>(*anIter);
 581       if (anAttribute.get() && !anAttribute->text().empty()) {
 582         if (myIsParamUpdated) {
 583           ModelAPI_AttributeEvalMessage::send(anAttribute, this);
 584         }
 585         if (anAttribute->expressionInvalid()) {
 586           aState = ModelAPI_StateInvalidArgument;
 587         }
 588       }
 589     }
 590   }
 591   // Double
 592   {
 593     std::list<AttributePtr> aDoubles =
 594       theFeature->data()->attributes(ModelAPI_AttributeDouble::typeId());
 595     std::list<AttributePtr>::iterator aDoubleIter = aDoubles.begin();
 596     for(; aDoubleIter != aDoubles.end(); aDoubleIter++) {
 597       AttributeDoublePtr aDouble =
 598         std::dynamic_pointer_cast<ModelAPI_AttributeDouble>(*aDoubleIter);
 599       if (aDouble.get() && !aDouble->text().empty()) {
 600         if (myIsParamUpdated) {
 601           ModelAPI_AttributeEvalMessage::send(aDouble, this);
 602         }
 603         if (aDouble->expressionInvalid()) {
 604           aState = ModelAPI_StateInvalidArgument;
 605         }
 606       }
 607     }
 608   }
 609   // Point
 610   {
 611     std::list<AttributePtr> anAttributes =
 612       theFeature->data()->attributes(GeomDataAPI_Point::typeId());
 613     std::list<AttributePtr>::iterator anIter = anAttributes.begin();
 614     for(; anIter != anAttributes.end(); anIter++) {
 615       AttributePointPtr aPointAttribute =
 616         std::dynamic_pointer_cast<GeomDataAPI_Point>(*anIter);
 617       if (aPointAttribute.get() && (!aPointAttribute->textX().empty() ||
 618           !aPointAttribute->textY().empty() || !aPointAttribute->textZ().empty())) {
 619         if (myIsParamUpdated) {
 620           ModelAPI_AttributeEvalMessage::send(aPointAttribute, this);
 621         }
 622         if ((!aPointAttribute->textX().empty() && aPointAttribute->expressionInvalid(0)) ||
 623           (!aPointAttribute->textY().empty() && aPointAttribute->expressionInvalid(1)) ||
 624           (!aPointAttribute->textZ().empty() && aPointAttribute->expressionInvalid(2)))
 625           aState = ModelAPI_StateInvalidArgument;
 626       }
 627     }
 628   }
 629   // Point2D
 630   {
 631     std::list<AttributePtr> anAttributes =
 632       theFeature->data()->attributes(GeomDataAPI_Point2D::typeId());
 633     std::list<AttributePtr>::iterator anIter = anAttributes.begin();
 634     for(; anIter != anAttributes.end(); anIter++) {
 635       AttributePoint2DPtr aPoint2DAttribute =
 636         std::dynamic_pointer_cast<GeomDataAPI_Point2D>(*anIter);
 637       if (aPoint2DAttribute.get()) {
 638         if (myIsParamUpdated && (!aPoint2DAttribute->textX().empty() ||
 639             !aPoint2DAttribute->textY().empty())) {
 640           ModelAPI_AttributeEvalMessage::send(aPoint2DAttribute, this);
 641         }
 642         if ((!aPoint2DAttribute->textX().empty() && aPoint2DAttribute->expressionInvalid(0)) ||
 643           (!aPoint2DAttribute->textY().empty() && aPoint2DAttribute->expressionInvalid(1)))
 644           aState = ModelAPI_StateInvalidArgument;
 645       }
 646     }
 647   }
 648   // update the selection attributes if any
 649   list<AttributePtr> aRefs =
 650     theFeature->data()->attributes(ModelAPI_AttributeSelection::typeId());
 651   list<AttributePtr>::iterator aRefsIter = aRefs.begin();
 652   for (; aRefsIter != aRefs.end(); aRefsIter++) {
 653     std::shared_ptr<ModelAPI_AttributeSelection> aSel =
 654       std::dynamic_pointer_cast<ModelAPI_AttributeSelection>(*aRefsIter);
 655     ObjectPtr aContext = aSel->context();
 656     // update argument only if the referenced object is ready to use
 657     if (aContext.get() && !aContext->isDisabled()) {
 658       if (isReason(theFeature, aContext)) {
 659         if (!aSel->update()) { // this must be done on execution since it may be long operation
 660           bool isObligatory = !aFactory->isNotObligatory(
 661             theFeature->getKind(), theFeature->data()->id(aSel)) &&
 662             aFactory->isCase(theFeature, theFeature->data()->id(aSel));
 663           if (isObligatory)
 664             aState = ModelAPI_StateInvalidArgument;
 665         }
 666       }
 667     } else if (aContext.get()) {
 668       // here it may be not obligatory, but if the reference is wrong, it should not be correct
 669       bool isObligatory = aFactory->isCase(theFeature, theFeature->data()->id(aSel));
 670       if (isObligatory)
 671         aState = ModelAPI_StateInvalidArgument;
 672     }
 673   }
 674   // update the selection list attributes if any
 675   aRefs = theFeature->data()->attributes(ModelAPI_AttributeSelectionList::typeId());
 676   for (aRefsIter = aRefs.begin(); aRefsIter != aRefs.end(); aRefsIter++) {
 677     std::shared_ptr<ModelAPI_AttributeSelectionList> aSel =
 678       std::dynamic_pointer_cast<ModelAPI_AttributeSelectionList>(*aRefsIter);
 679     for(int a = aSel->size() - 1; a >= 0; a--) {
 680       std::shared_ptr<ModelAPI_AttributeSelection> aSelAttr =
 681         std::dynamic_pointer_cast<ModelAPI_AttributeSelection>(aSel->value(a));
 682       if (aSelAttr) {
 683         ObjectPtr aContext = aSelAttr->context();
 684         // update argument only if the referenced object is ready to use
 685         if (aContext.get() && !aContext->isDisabled()) {
 686           if (isReason(theFeature, aContext)) {
 687             if (!aSelAttr->update()) {
 688               bool isObligatory = !aFactory->isNotObligatory(
 689                 theFeature->getKind(), theFeature->data()->id(aSel)) &&
 690                 aFactory->isCase(theFeature, theFeature->data()->id(aSel));
 691               if (isObligatory)
 692                 aState = ModelAPI_StateInvalidArgument;
 693             }
 694           }
 695         } else if (aContext.get()) {
 696           // here it may be not obligatory, but if the reference is wrong, it should not be correct
 697           bool isObligatory = aFactory->isCase(theFeature, theFeature->data()->id(aSel));
 698           if (isObligatory)
 699             aState = ModelAPI_StateInvalidArgument;
 700         }
 701       }
 702     }
 703   }
 704
 705   if (aState != ModelAPI_StateDone)
 706     theFeature->data()->execState(aState);
 707 }
 708
 709 bool Model_Update::isReason(std::shared_ptr<ModelAPI_Feature>& theFeature,
 710      std::shared_ptr<ModelAPI_Object> theReason)
 711 {
 712   std::map<std::shared_ptr<ModelAPI_Feature>, std::set<std::shared_ptr<ModelAPI_Feature> > >
 713     ::iterator aReasonsIt = myModified.find(theFeature);
 714   if (aReasonsIt == myModified.end())
 715     return false; // this case only for not-previewed items update state, nothing is changed in args for it
 716   if (aReasonsIt->second.find(theFeature) != aReasonsIt->second.end())
 717     return true; // any is reason if it contains itself
 718   FeaturePtr aReasFeat = std::dynamic_pointer_cast<ModelAPI_Feature>(theReason);
 719   if (!aReasFeat.get()) { // try to get feature of this result
 720     ResultPtr aReasRes = std::dynamic_pointer_cast<ModelAPI_Result>(theReason);
 721     if (aReasRes.get())
 722       aReasFeat = theReason->document()->feature(aReasRes);
 723   }
 724   return aReasonsIt->second.find(aReasFeat) != aReasonsIt->second.end();
 725
 726 }
 727
 728 void Model_Update::executeFeature(FeaturePtr theFeature)
 729 {
 730 #ifdef DEB_UPDATE
 731   std::cout<<"Execute Feature "<<theFeature->name()<<std::endl;
 732 #endif
 733   // execute in try-catch to avoid internal problems of the feature
 734   ModelAPI_ExecState aState = ModelAPI_StateDone;
 735   theFeature->data()->execState(ModelAPI_StateDone);
 736   try {
 737     theFeature->execute();
 738     if (theFeature->data()->execState() != ModelAPI_StateDone) {
 739       aState = ModelAPI_StateExecFailed;
 740     } else {
 741       aState = ModelAPI_StateDone;
 742     }
 743   } catch(...) {
 744     aState = ModelAPI_StateExecFailed;
 745     Events_InfoMessage("Model_Update",
 746       "Feature %1 has failed during the execution").arg(theFeature->getKind()).send();
 747   }
 748   // The macro feature has to be deleted in any case even its execution is failed
 749   myWaitForFinish.insert(theFeature);
 750   if (aState != ModelAPI_StateDone) {
 751     theFeature->eraseResults();
 752   }
 753   theFeature->data()->setUpdateID(ModelAPI_Session::get()->transactionID());
 754   redisplayWithResults(theFeature, aState);
 755 }
 756
 757 void Model_Update::updateStability(void* theSender)
 758 {
 759   static ModelAPI_ValidatorsFactory* aFactory = ModelAPI_Session::get()->validators();
 760   if (theSender) {
 761     bool added = false; // object may be was crated
 762     ModelAPI_Object* aSender = static_cast<ModelAPI_Object*>(theSender);
 763     if (aSender && aSender->document()) {
 764       FeaturePtr aFeatureSender =
 765         std::dynamic_pointer_cast<ModelAPI_Feature>(aSender->data()->owner());
 766       if (aFeatureSender.get()) {
 767         Model_Objects* aDocObjects =
 768           std::dynamic_pointer_cast<Model_Document>(aSender->document())->objects();
 769         if (aDocObjects) {
 770           //aDocObjects->synchronizeBackRefs();
 771           // remove or add all concealment refs from this feature
 772           std::list<std::pair<std::string, std::list<ObjectPtr> > > aRefs;
 773           aSender->data()->referencesToObjects(aRefs);
 774           std::list<std::pair<std::string, std::list<ObjectPtr> > >::iterator aRefIt = aRefs.begin();
 775           for(; aRefIt != aRefs.end(); aRefIt++) {
 776             if (!aFactory->isConcealed(aFeatureSender->getKind(), aRefIt->first))
 777               continue; // take into account only concealed references (do not remove the sketch constraint and the edge on constraint edit)
 778             std::list<ObjectPtr>& aRefFeaturesList = aRefIt->second;
 779             std::list<ObjectPtr>::iterator aReferenced = aRefFeaturesList.begin();
 780             for(; aReferenced != aRefFeaturesList.end(); aReferenced++) {
 781                // stability is only on results: feature to feature reference mean nested
 782               // features, that will remove nesting references
 783               if (aReferenced->get() && (*aReferenced)->data()->isValid() &&
 784                 (*aReferenced)->groupName() != ModelAPI_Feature::group()) {
 785                 std::shared_ptr<Model_Data> aData =
 786                   std::dynamic_pointer_cast<Model_Data>((*aReferenced)->data());
 787                 if (aFeatureSender->isStable()) {
 788                   aData->addBackReference(aFeatureSender, aRefIt->first);
 789                 } else {
 790                   aData->removeBackReference(aFeatureSender, aRefIt->first);
 791                   added = true; // remove of concealment may be caused creation of some result
 792                 }
 793               }
 794             }
 795           }
 796         }
 797       }
 798     }
 799     if (added) {
 800       static Events_Loop* aLoop = Events_Loop::loop();
 801       static Events_ID kEventCreated = aLoop->eventByName(EVENT_OBJECT_CREATED);
 802       aLoop->flush(kEventCreated);
 803     }
 804   }
 805 }