src/Model/Model_Update.cpp

   1 // Copyright (C) 2014-20xx CEA/DEN, EDF R&D
   2
   3 // File:        Model_Update.cxx
   4 // Created:     25 Jun 2014
   5 // Author:      Mikhail PONIKAROV
   6
   7 #include <Model_Update.h>
   8 #include <Model_Document.h>
   9 #include <Model_Data.h>
  10 #include <Model_Objects.h>
  11 #include <Model_AttributeSelection.h>
  12 #include <ModelAPI_Feature.h>
  13 #include <ModelAPI_Data.h>
  14 #include <ModelAPI_Document.h>
  15 #include <ModelAPI_Events.h>
  16 #include <ModelAPI_AttributeReference.h>
  17 #include <ModelAPI_AttributeRefList.h>
  18 #include <ModelAPI_AttributeRefAttr.h>
  19 #include <ModelAPI_AttributeSelection.h>
  20 #include <ModelAPI_AttributeSelectionList.h>
  21 #include <ModelAPI_Result.h>
  22 #include <ModelAPI_ResultPart.h>
  23 #include <ModelAPI_Validator.h>
  24 #include <ModelAPI_CompositeFeature.h>
  25 #include <ModelAPI_Session.h>
  26 #include <ModelAPI_Tools.h>
  27 #include <GeomDataAPI_Point.h>
  28 #include <GeomDataAPI_Point2D.h>
  29 #include <Events_Loop.h>
  30 #include <Events_LongOp.h>
  31 #include <Events_InfoMessage.h>
  32 #include <Config_PropManager.h>
  33
  34 using namespace std;
  35
  36 Model_Update MY_UPDATER_INSTANCE;  /// the only one instance initialized on load of the library
  37 //#define DEB_UPDATE
  38
  39 Model_Update::Model_Update()
  40 {
  41   Events_Loop* aLoop = Events_Loop::loop();
  42   static const Events_ID kChangedEvent = aLoop->eventByName("PreferenceChanged");
  43   aLoop->registerListener(this, kChangedEvent);
  44   static const Events_ID kCreatedEvent = Events_Loop::loop()->eventByName(EVENT_OBJECT_CREATED);
  45   aLoop->registerListener(this, kCreatedEvent);
  46   static const Events_ID kUpdatedEvent = Events_Loop::loop()->eventByName(EVENT_OBJECT_UPDATED);
  47   aLoop->registerListener(this, kUpdatedEvent);
  48   static const Events_ID kOpFinishEvent = aLoop->eventByName("FinishOperation");
  49   aLoop->registerListener(this, kOpFinishEvent);
  50   static const Events_ID kOpAbortEvent = aLoop->eventByName("AbortOperation");
  51   aLoop->registerListener(this, kOpAbortEvent);
  52   static const Events_ID kOpStartEvent = aLoop->eventByName("StartOperation");
  53   aLoop->registerListener(this, kOpStartEvent);
  54   static const Events_ID kStabilityEvent = aLoop->eventByName(EVENT_STABILITY_CHANGED);
  55   aLoop->registerListener(this, kStabilityEvent);
  56   static const Events_ID kPreviewBlockedEvent = aLoop->eventByName(EVENT_PREVIEW_BLOCKED);
  57   aLoop->registerListener(this, kPreviewBlockedEvent);
  58   static const Events_ID kPreviewRequestedEvent = aLoop->eventByName(EVENT_PREVIEW_REQUESTED);
  59   aLoop->registerListener(this, kPreviewRequestedEvent);
  60   static const Events_ID kReorderEvent = aLoop->eventByName(EVENT_ORDER_UPDATED);
  61   aLoop->registerListener(this, kReorderEvent);
  62   static const Events_ID kUpdatedSel = aLoop->eventByName(EVENT_UPDATE_SELECTION);
  63   aLoop->registerListener(this, kUpdatedSel);
  64
  65   //  Config_PropManager::findProp("Model update", "automatic_rebuild")->value() == "true";
  66   myIsParamUpdated = false;
  67   myIsFinish = false;
  68   myIsProcessed = false;
  69   myIsPreviewBlocked = false;
  70 }
  71
  72 bool Model_Update::addModified(FeaturePtr theFeature, FeaturePtr theReason) {
  73
  74   if (!theFeature->data()->isValid())
  75     return false; // delete an extrusion created on the sketch
  76
  77   bool isNotExecuted = theFeature->isPersistentResult() &&
  78     !std::dynamic_pointer_cast<Model_Document>((theFeature)->document())->executeFeatures();
  79   if (isNotExecuted) {
  80     if (!theReason.get()) // no reason => no construction reason
  81       return false;
  82     if (myNotPersistentRefs.find(theFeature) == myNotPersistentRefs.end()) {
  83       myNotPersistentRefs[theFeature].insert(theReason);
  84     } else {
  85       std::set<std::shared_ptr<ModelAPI_Feature> > aNewSet;
  86       aNewSet.insert(theReason);
  87       myNotPersistentRefs[theFeature] = aNewSet;
  88     }
  89     return false;
  90   }
  91
  92   // update arguments for "apply button" state change
  93   if ((!theFeature->isPreviewNeeded() && !myIsFinish) || myIsPreviewBlocked) {
  94     myProcessOnFinish.insert(theFeature);
  95 #ifdef DEB_UPDATE
  96       std::cout<<"*** Add process on finish "<<theFeature->name()<<std::endl;
  97 #endif
  98     // keeps the currently updated features to avoid infinitive cycling here: where feature on
  99     // "updateArguments" sends "updated" (in selection attribute) and goes here again
 100     static std::set<FeaturePtr> aCurrentlyUpdated;
 101     if (aCurrentlyUpdated.find(theFeature) == aCurrentlyUpdated.end()) {
 102       aCurrentlyUpdated.insert(theFeature);
 103       updateArguments(theFeature);
 104       aCurrentlyUpdated.erase(theFeature);
 105     }
 106     // make it without conditions otherwise the apply button may have a bad state
 107     theFeature->data()->execState(ModelAPI_StateDone);
 108     static ModelAPI_ValidatorsFactory* aFactory = ModelAPI_Session::get()->validators();
 109      // need to be validated to update the "Apply" state if not previewed
 110     aFactory->validate(theFeature);
 111
 112     // to redisplay split's arguments presentation, even result is not computed
 113     if (!theFeature->isPreviewNeeded()) {
 114       static Events_Loop* aLoop = Events_Loop::loop();
 115       static const Events_ID kRedisplayEvent = aLoop->eventByName(EVENT_OBJECT_TO_REDISPLAY);
 116       ModelAPI_EventCreator::get()->sendUpdated(theFeature, kRedisplayEvent);
 117       aLoop->flush(kRedisplayEvent);
 118     }
 119
 120     if (!myIsPreviewBlocked)
 121       return true;
 122   }
 123   if (myModified.find(theFeature) != myModified.end()) {
 124     if (theReason.get()) {
 125 #ifdef DEB_UPDATE
 126       //std::cout<<"*** Add already modified "
 127       //   <<theFeature->name()<<" reason "<<theReason->name()<<std::endl;
 128 #endif
 129       myModified[theFeature].insert(theReason);
 130     }
 131     return true;
 132   }
 133   // do not add the disabled, but possibly the sub-elements are not disabled
 134   bool aIsDisabled = theFeature->isDisabled();
 135   if (!aIsDisabled) {
 136     std::set<std::shared_ptr<ModelAPI_Feature> > aNewSet;
 137     if (theFeature->data()->execState() == ModelAPI_StateMustBeUpdated ||
 138         theFeature->data()->execState() == ModelAPI_StateInvalidArgument || // issue 1519
 139         theFeature->data()->execState() == ModelAPI_StateExecFailed) {
 140       // do not forget that in this case all were the reasons
 141       aNewSet.insert(theFeature);
 142     } else {
 143       if (theReason.get())
 144         aNewSet.insert(theReason);
 145     }
 146       myModified[theFeature] = aNewSet;
 147 #ifdef DEB_UPDATE
 148     if (theReason.get()) {
 149       //std::cout<<"*** Add modified "<<theFeature->name()
 150       //  <<" reason "<<theReason->name()<<std::endl;
 151     } else {
 152       //std::cout<<"*** Add modified "<<theFeature->name()<<std::endl;
 153     }
 154 #endif
 155   } else { // will be updated during the finish of the operation, or when it becomes enabled
 156     if (theFeature->data()->execState() == ModelAPI_StateDone ||
 157         theFeature->data()->execState() == ModelAPI_StateExecFailed) // fix issue 1819
 158       theFeature->data()->execState(ModelAPI_StateMustBeUpdated);
 159     else
 160       return true; // do not need iteration deeply if it is already marked as modified or so
 161 #ifdef DEB_UPDATE
 162     //std::cout<<"*** Set modified state "<<theFeature->name()<<std::endl;
 163 #endif
 164   }
 165   // clear processed and fill modified recursively
 166   const std::set<std::shared_ptr<ModelAPI_Attribute> >& aRefs = theFeature->data()->refsToMe();
 167   std::set<std::shared_ptr<ModelAPI_Attribute> >::const_iterator aRefIter = aRefs.cbegin();
 168   for(; aRefIter != aRefs.cend(); aRefIter++) {
 169     if ((*aRefIter)->isArgument()) {
 170       FeaturePtr aReferenced = std::dynamic_pointer_cast<ModelAPI_Feature>((*aRefIter)->owner());
 171       if (aReferenced.get()) {
 172         addModified(aReferenced, theFeature);
 173       }
 174     }
 175   }
 176   // proccess also results
 177   std::list<ResultPtr> allResults; // list of this feature and results
 178   ModelAPI_Tools::allResults(theFeature, allResults);
 179   std::list<ResultPtr>::iterator aRes = allResults.begin();
 180   for(; aRes != allResults.end(); aRes++) {
 181     const std::set<std::shared_ptr<ModelAPI_Attribute> >& aRefs = (*aRes)->data()->refsToMe();
 182     std::set<std::shared_ptr<ModelAPI_Attribute> >::const_iterator aRefIter = aRefs.cbegin();
 183     for(; aRefIter != aRefs.cend(); aRefIter++) {
 184       if ((*aRefIter)->isArgument()) {
 185         FeaturePtr aReferenced = std::dynamic_pointer_cast<ModelAPI_Feature>((*aRefIter)->owner());
 186         if (aReferenced.get()) {
 187           addModified(aReferenced, theFeature);
 188         }
 189       }
 190     }
 191   }
 192
 193   // also add part feature that contains this feature to the modified
 194   if (theFeature->document()->kind() != "PartSet") {
 195     FeaturePtr aPart = ModelAPI_Tools::findPartFeature(
 196       ModelAPI_Session::get()->moduleDocument(), theFeature->document());
 197     if (aPart.get())
 198       addModified(aPart, theFeature);
 199   }
 200   return true;
 201 }
 202
 203 void Model_Update::processEvent(const std::shared_ptr<Events_Message>& theMessage)
 204 {
 205   static Events_Loop* aLoop = Events_Loop::loop();
 206   static const Events_ID kCreatedEvent = aLoop->eventByName(EVENT_OBJECT_CREATED);
 207   static const Events_ID kUpdatedEvent = aLoop->eventByName(EVENT_OBJECT_UPDATED);
 208   static const Events_ID kOpFinishEvent = aLoop->eventByName("FinishOperation");
 209   static const Events_ID kOpAbortEvent = aLoop->eventByName("AbortOperation");
 210   static const Events_ID kOpStartEvent = aLoop->eventByName("StartOperation");
 211   static const Events_ID kStabilityEvent = aLoop->eventByName(EVENT_STABILITY_CHANGED);
 212   static const Events_ID kPreviewBlockedEvent = aLoop->eventByName(EVENT_PREVIEW_BLOCKED);
 213   static const Events_ID kPreviewRequestedEvent = aLoop->eventByName(EVENT_PREVIEW_REQUESTED);
 214   static const Events_ID kReorderEvent = aLoop->eventByName(EVENT_ORDER_UPDATED);
 215   static const Events_ID kRedisplayEvent = aLoop->eventByName(EVENT_OBJECT_TO_REDISPLAY);
 216   static const Events_ID kUpdatedSel = aLoop->eventByName(EVENT_UPDATE_SELECTION);
 217
 218 #ifdef DEB_UPDATE
 219   std::cout<<"****** Event "<<theMessage->eventID().eventText()<<std::endl;
 220 #endif
 221   if (theMessage->eventID() == kStabilityEvent) {
 222     updateStability(theMessage->sender());
 223     return;
 224   }
 225   if (theMessage->eventID() == kPreviewBlockedEvent) {
 226     myIsPreviewBlocked = true;
 227     return;
 228   }
 229   if (theMessage->eventID() == kPreviewRequestedEvent) {
 230     if (myIsPreviewBlocked) {
 231       myIsPreviewBlocked = false;
 232       processFeatures();
 233       myIsPreviewBlocked = true;
 234     }
 235     return;
 236   }
 237   if (theMessage->eventID() == kUpdatedSel) {
 238     std::shared_ptr<ModelAPI_ObjectUpdatedMessage> aMsg =
 239         std::dynamic_pointer_cast<ModelAPI_ObjectUpdatedMessage>(theMessage);
 240     updateSelection(aMsg->objects());
 241   }
 242   // creation is added to "update" to avoid recomputation twice:
 243   // on create and immediately after on update
 244   if (theMessage->eventID() == kCreatedEvent) {
 245     std::shared_ptr<ModelAPI_ObjectUpdatedMessage> aMsg =
 246         std::dynamic_pointer_cast<ModelAPI_ObjectUpdatedMessage>(theMessage);
 247     const std::set<ObjectPtr>& anObjs = aMsg->objects();
 248     std::set<ObjectPtr>::const_iterator anObjIter = anObjs.cbegin();
 249     for(; anObjIter != anObjs.cend(); anObjIter++) {
 250       if (std::dynamic_pointer_cast<Model_Document>((*anObjIter)->document())->executeFeatures()) {
 251         if ((*anObjIter)->groupName() == ModelAPI_Feature::group()) {
 252           // results creation means enabling, not update
 253           ModelAPI_EventCreator::get()->sendUpdated(*anObjIter, kUpdatedEvent);
 254         } else {
 255           ModelAPI_EventCreator::get()->sendUpdated(*anObjIter, kRedisplayEvent);
 256         }
 257       }
 258     }
 259     return;
 260   }
 261   if (theMessage->eventID() == kUpdatedEvent) {
 262     std::shared_ptr<ModelAPI_ObjectUpdatedMessage> aMsg =
 263         std::dynamic_pointer_cast<ModelAPI_ObjectUpdatedMessage>(theMessage);
 264     const std::set<ObjectPtr>& anObjs = aMsg->objects();
 265     std::set<ObjectPtr>::const_iterator anObjIter = anObjs.cbegin();
 266     bool aSomeModified = false; // check that features not changed: only redisplay is needed
 267     for(; anObjIter != anObjs.cend(); anObjIter++) {
 268       if (!(*anObjIter)->data()->isValid())
 269         continue;
 270 #ifdef DEB_UPDATE
 271       std::cout<<">>> in event updated "<<(*anObjIter)->groupName()<<
 272         " "<<(*anObjIter)->data()->name()<<std::endl;
 273 #endif
 274       if ((*anObjIter)->groupName() == ModelAPI_ResultParameter::group()) {
 275         myIsParamUpdated = true;
 276       }
 277       // on undo/redo, abort do not update persisten features
 278       FeaturePtr anUpdated = std::dynamic_pointer_cast<ModelAPI_Feature>(*anObjIter);
 279       if (anUpdated.get()) {
 280         if (addModified(anUpdated, FeaturePtr()))
 281           aSomeModified = true;
 282       } else {
 283         // process the updated result as update of features that refers to this result
 284         const std::set<std::shared_ptr<ModelAPI_Attribute> >&
 285           aRefs = (*anObjIter)->data()->refsToMe();
 286         std::set<std::shared_ptr<ModelAPI_Attribute> >::const_iterator aRefIter = aRefs.cbegin();
 287         for(; aRefIter != aRefs.cend(); aRefIter++) {
 288           if (!(*aRefIter)->owner()->data()->isValid())
 289             continue;
 290           FeaturePtr anUpdated = std::dynamic_pointer_cast<ModelAPI_Feature>((*aRefIter)->owner());
 291           if (anUpdated.get()) {
 292             if (addModified(anUpdated, FeaturePtr()))
 293               aSomeModified = true;
 294           }
 295         }
 296       }
 297     }
 298     // this event is for solver update, not here, do not react immediately
 299     if (aSomeModified) {
 300         processFeatures();
 301     }
 302   } else if (theMessage->eventID() == kOpFinishEvent || theMessage->eventID() == kOpAbortEvent ||
 303       theMessage->eventID() == kOpStartEvent) {
 304     myIsPreviewBlocked = false;
 305
 306     if (theMessage->eventID() == kOpFinishEvent) {
 307       myIsFinish = true;
 308       // add features that wait for finish as modified
 309       std::set<std::shared_ptr<ModelAPI_Feature> >::iterator aFeature = myProcessOnFinish.begin();
 310       for(; aFeature != myProcessOnFinish.end(); aFeature++)
 311         if ((*aFeature)->data()->isValid()) // there may be already removed wait for features
 312           addModified(*aFeature, FeaturePtr());
 313       myIsFinish = false;
 314     }
 315     // processed features must be only on finish, so clear anyway (to avoid reimport on load)
 316     myProcessOnFinish.clear();
 317
 318     if (!(theMessage->eventID() == kOpStartEvent)) {
 319       processFeatures(false);
 320     }
 321     // remove all macros before clearing all created
 322     std::set<FeaturePtr>::iterator anUpdatedIter = myWaitForFinish.begin();
 323     while(anUpdatedIter != myWaitForFinish.end()) {
 324       FeaturePtr aFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(*anUpdatedIter);
 325       if (aFeature.get()) {
 326         // remove macro on finish
 327         if (aFeature->isMacro()) {
 328           aFeature->document()->removeFeature(aFeature);
 329           myWaitForFinish.erase(aFeature);
 330         }
 331         // to avoid the map update problems on "remove"
 332         if (myWaitForFinish.find(aFeature) == myWaitForFinish.end()) {
 333           anUpdatedIter = myWaitForFinish.begin();
 334         } else {
 335           anUpdatedIter++;
 336         }
 337       } else {
 338         anUpdatedIter++;
 339       }
 340     }
 341     // the redisplay signal should be flushed in order
 342     // to erase the feature presentation in the viewer
 343     // if should be done after removeFeature() of document,
 344     // by this reason, upper processFeatures() do not perform this flush
 345     Events_Loop::loop()->flush(kRedisplayEvent);
 346
 347     // in the end of transaction everything is updated, so clear the old objects
 348     myIsParamUpdated = false;
 349     myWaitForFinish.clear();
 350   } else if (theMessage->eventID() == kReorderEvent) {
 351     std::shared_ptr<ModelAPI_OrderUpdatedMessage> aMsg =
 352       std::dynamic_pointer_cast<ModelAPI_OrderUpdatedMessage>(theMessage);
 353     if (aMsg->reordered().get())
 354       addModified(aMsg->reordered(), aMsg->reordered()); // to update all attributes
 355   }
 356 }
 357
 358 void Model_Update::processFeatures(const bool theFlushRedisplay)
 359 {
 360    // perform update of everything if it is not performed right now or any preview is blocked
 361   if (!myIsProcessed && !myIsPreviewBlocked) {
 362     myIsProcessed = true;
 363     #ifdef DEB_UPDATE
 364       std::cout<<"****** Start processing"<<std::endl;
 365     #endif
 366
 367     while(!myModified.empty()) {
 368       processFeature(myModified.begin()->first);
 369     }
 370     myIsProcessed = false;
 371
 372     // to update the object browser if something is updated/created during executions
 373     static Events_Loop* aLoop = Events_Loop::loop();
 374     static const Events_ID kCreatedEvent= aLoop->eventByName(EVENT_OBJECT_CREATED);
 375     aLoop->flush(kCreatedEvent);
 376     static const Events_ID kUpdatedEvent = aLoop->eventByName(EVENT_OBJECT_UPDATED);
 377     aLoop->flush(kUpdatedEvent);
 378
 379     // flush to update display
 380     if (theFlushRedisplay) {
 381       static Events_ID EVENT_DISP = aLoop->eventByName(EVENT_OBJECT_TO_REDISPLAY);
 382       aLoop->flush(EVENT_DISP);
 383     }
 384     #ifdef DEB_UPDATE
 385       std::cout<<"****** End processing"<<std::endl;
 386     #endif
 387     myProcessed.clear();
 388   }
 389 }
 390
 391 // collects all the feautres this feature depends on: reasons
 392 static void allReasons(FeaturePtr theFeature, std::set<FeaturePtr>& theReasons) {
 393   std::list<std::pair<std::string, std::list<std::shared_ptr<ModelAPI_Object> > > > aDeps;
 394   theFeature->data()->referencesToObjects(aDeps);
 395   std::list<std::pair<std::string, std::list<std::shared_ptr<ModelAPI_Object> > > >::iterator
 396     anAttrsIter = aDeps.begin();
 397   for(; anAttrsIter != aDeps.end(); anAttrsIter++) {
 398     if (theFeature->attribute(anAttrsIter->first)->isArgument()) {
 399       std::list<std::shared_ptr<ModelAPI_Object> >::iterator aDepIter = anAttrsIter->second.begin();
 400       for(; aDepIter != anAttrsIter->second.end(); aDepIter++) {
 401         FeaturePtr aDepFeat = std::dynamic_pointer_cast<ModelAPI_Feature>(*aDepIter);
 402         if (!aDepFeat.get()) { // so, it depends on the result and process the feature owner of it
 403           ResultPtr aDepRes = std::dynamic_pointer_cast<ModelAPI_Result>(*aDepIter);
 404           if (aDepRes.get()) {
 405             aDepFeat = (*aDepIter)->document()->feature(aDepRes);
 406           }
 407         }
 408         if (aDepFeat.get() && aDepFeat->data()->isValid()) {
 409           theReasons.insert(aDepFeat);
 410         }
 411       }
 412     }
 413   }
 414   if (theFeature->getKind() == "Part") {
 415     // part is not depended on its subs directly, but subs must be iterated anyway
 416     CompositeFeaturePtr aPart = std::dynamic_pointer_cast<ModelAPI_CompositeFeature>(theFeature);
 417     int aNum = aPart->numberOfSubs();
 418     for(int a = 0; a < aNum; a++) {
 419       FeaturePtr aSub = aPart->subFeature(a);
 420       if (aSub.get() && aSub->data()->isValid()) {
 421         theReasons.insert(aSub);
 422       }
 423     }
 424   }
 425 }
 426
 427 bool Model_Update::processFeature(FeaturePtr theFeature)
 428 {
 429   static ModelAPI_ValidatorsFactory* aFactory = ModelAPI_Session::get()->validators();
 430
 431   if (!theFeature->data()->isValid()) { // deleted feature, just remove from all containers
 432     if (myModified.find(theFeature) != myModified.end())
 433       myModified.erase(theFeature);
 434     return false;
 435   }
 436
 437   if (theFeature->isPersistentResult()) {
 438     if (!std::dynamic_pointer_cast<Model_Document>((theFeature)->document())->executeFeatures())
 439       return false;
 440   }
 441
 442   if (myProcessed.find(theFeature) == myProcessed.end()) {
 443     myProcessed[theFeature] = 0;
 444   } else {
 445     int aCount = myProcessed[theFeature];
 446     if (aCount > 100) {
 447       // too many repetition of processing (in VS it may crash on 330 with stack overflow)
 448       Events_InfoMessage("Model_Update",
 449         "Feature '%1' is updated in infinitive loop").arg(theFeature->data()->name()).send();
 450       return false;
 451     }
 452     myProcessed[theFeature] = aCount + 1;
 453   }
 454
 455   // check this feature is not yet checked or processed
 456   bool aIsModified = myModified.find(theFeature) != myModified.end();
 457   if (!aIsModified && myIsFinish) { // get info about the modification for features without preview
 458     if (theFeature->data()->execState() == ModelAPI_StateMustBeUpdated) {
 459       aIsModified = true;
 460       std::set<std::shared_ptr<ModelAPI_Feature> > aNewSet;
 461       // contains itself, so, we don't know which was the reason and the reason is any
 462       aNewSet.insert(theFeature);
 463       myModified[theFeature] = aNewSet;
 464     }
 465   }
 466
 467 #ifdef DEB_UPDATE
 468     std::cout<<"* Process feature "<<theFeature->name()<<std::endl;
 469 #endif
 470
 471   // update the sketch plane before the sketch sub-elements are recomputed
 472   // (otherwise sketch will update plane, modify subs, after executed, but with old subs edges)
 473   if (aIsModified && theFeature->getKind() == "Sketch") {
 474 #ifdef DEB_UPDATE
 475     std::cout<<"****** Update sketch args "<<theFeature->name()<<std::endl;
 476 #endif
 477     AttributeSelectionPtr anExtSel = theFeature->selection("External");
 478     if (anExtSel.get()) {
 479       ResultPtr aContext = anExtSel->context();
 480       if (aContext.get() && aContext->document().get()) {
 481         FeaturePtr anExtBase = aContext->document()->feature(aContext);
 482         if (anExtBase.get()) {
 483           processFeature(anExtBase);
 484         }
 485       }
 486     }
 487     updateArguments(theFeature);
 488     // send event that sketch is prepared to be recomputed
 489     static Events_ID anID = Events_Loop::eventByName("SketchPrepared");
 490     std::shared_ptr<Events_Message> aMsg(new Events_Message(anID, this));
 491     Events_Loop::loop()->send(aMsg);
 492   }
 493
 494   if (!aIsModified) { // no modification is needed
 495     return false;
 496   }
 497
 498   // evaluate parameter before the sub-elements update:
 499   // it updates dependencies on evaluation (#1085)
 500   if (theFeature->getKind() == "Parameter") {
 501     theFeature->execute();
 502   }
 503
 504   bool isReferencedInvalid = false;
 505   // check all features this feature depended on (recursive call of updateFeature)
 506   std::set<FeaturePtr>& aReasons = myModified[theFeature];
 507   bool allSubsUsed = aReasons.find(theFeature) != aReasons.end();
 508   if (allSubsUsed) {
 509     // add all subs in aReasons and temporary remove "theFeature" to avoid processing itself
 510     allReasons(theFeature, aReasons);
 511     aReasons.erase(theFeature);
 512   }
 513   // take reasons one by one (they may be added during the feature process
 514   // (circle by the radius of sketch)
 515   std::set<FeaturePtr> aProcessedReasons;
 516   while(!aReasons.empty()) {
 517     FeaturePtr aReason = *(aReasons.begin());
 518 #ifdef DEB_UPDATE
 519     //cout<<theFeature->name()<<" process next reason "<<aReason->name()<<endl;
 520 #endif
 521     if (aReason != theFeature && (aReason)->data()->isValid()) {
 522       if (processFeature(aReason))
 523         aIsModified = true;
 524       if (aReason->data()->execState() == ModelAPI_StateInvalidArgument)
 525         isReferencedInvalid = true;
 526     }
 527     // searching for the next not used reason
 528     aProcessedReasons.insert(aReason);
 529     aReasons.erase(aReason);
 530   }
 531   // restore the modified reasons: they will be used in the update of arguments
 532   if (allSubsUsed) { // restore theFeature in this set
 533     aProcessedReasons.insert(theFeature);
 534   }
 535   myModified[theFeature] = aProcessedReasons;
 536
 537   // do not execute the composite that contains the current
 538   bool isPostponedMain = false;
 539   CompositeFeaturePtr aCompos = std::dynamic_pointer_cast<ModelAPI_CompositeFeature>(theFeature);
 540   if (theFeature->getKind() == "ExtrusionSketch" && aCompos.get()) {
 541     CompositeFeaturePtr aCurrentOwner =
 542       ModelAPI_Tools::compositeOwner(theFeature->document()->currentFeature(false));
 543     isPostponedMain = aCurrentOwner.get() && aCompos->isSub(aCurrentOwner);
 544   }
 545
 546 #ifdef DEB_UPDATE
 547   std::cout<<"Update args "<<theFeature->name()<<std::endl;
 548 #endif
 549   // TestImport.py : after arguments are updated, theFeature may be removed
 550   if (!theFeature->data()->isValid())
 551     return false;
 552   // Update selection and parameters attributes first, before sub-features analysis (sketch plane).
 553   updateArguments(theFeature);
 554
 555   // add this feature to the processed right now to be able remove it from this list on
 556   // update signal during this feature execution
 557   myModified.erase(theFeature);
 558   if (myNotPersistentRefs.find(theFeature) != myNotPersistentRefs.end())
 559     myNotPersistentRefs.erase(theFeature);
 560   if (theFeature->data()->execState() == ModelAPI_StateMustBeUpdated)
 561     theFeature->data()->execState(ModelAPI_StateDone);
 562
 563   // this checking must be after the composite feature sub-elements processing:
 564   // composite feature status may depend on it's subelements
 565   if ((theFeature->data()->execState() == ModelAPI_StateInvalidArgument || isReferencedInvalid) &&
 566     theFeature->getKind() != "Part") {
 567       // don't disable Part because it will make disabled all the features
 568       // (performance and problems with the current feature)
 569   #ifdef DEB_UPDATE
 570     std::cout<<"Invalid args "<<theFeature->name()<<std::endl;
 571   #endif
 572     theFeature->eraseResults();
 573     redisplayWithResults(theFeature, ModelAPI_StateInvalidArgument); // result also must be updated
 574     return true; // so, feature is modified (results are erased)
 575   }
 576
 577   // execute feature if it must be updated
 578   ModelAPI_ExecState aState = theFeature->data()->execState();
 579   if (aFactory->validate(theFeature)) {
 580     if (!isPostponedMain) {
 581       executeFeature(theFeature);
 582     }
 583   } else {
 584     #ifdef DEB_UPDATE
 585       std::cout<<"Feature is not valid, erase results "<<theFeature->name()<<std::endl;
 586     #endif
 587     theFeature->eraseResults();
 588     redisplayWithResults(theFeature, ModelAPI_StateInvalidArgument); // result also must be updated
 589   }
 590   return true;
 591 }
 592
 593 void Model_Update::redisplayWithResults(FeaturePtr theFeature, const ModelAPI_ExecState theState)
 594 {
 595   // make updated and redisplay all results
 596   static Events_ID EVENT_DISP = Events_Loop::loop()->eventByName(EVENT_OBJECT_TO_REDISPLAY);
 597
 598   std::list<ResultPtr> allResults;
 599   ModelAPI_Tools::allResults(theFeature, allResults);
 600   std::list<ResultPtr>::iterator aRIter = allResults.begin();
 601   for (; aRIter != allResults.cend(); aRIter++) {
 602     std::shared_ptr<ModelAPI_Result> aRes = *aRIter;
 603     if (!aRes->isDisabled()) {
 604       // update state only for enabled results
 605       // (Placement Result Part may make the original Part Result as invalid)
 606       aRes->data()->execState(theState);
 607     }
 608     if (theFeature->data()->updateID() > aRes->data()->updateID()) {
 609       aRes->data()->setUpdateID(theFeature->data()->updateID());
 610     }
 611     ModelAPI_EventCreator::get()->sendUpdated(aRes, EVENT_DISP);
 612   }
 613   // to redisplay "presentable" feature (for ex. distance constraint)
 614   ModelAPI_EventCreator::get()->sendUpdated(theFeature, EVENT_DISP);
 615   theFeature->data()->execState(theState);
 616 }
 617
 618 /// Updates the state by the referenced object: if something bad with it, set state for this one
 619 ModelAPI_ExecState stateByReference(ObjectPtr theTarget, const ModelAPI_ExecState theCurrent)
 620 {
 621   if (theTarget) {
 622     ModelAPI_ExecState aRefState = theTarget->data()->execState();
 623     if (aRefState == ModelAPI_StateMustBeUpdated) {
 624       if (theCurrent == ModelAPI_StateDone)
 625         return ModelAPI_StateMustBeUpdated;
 626     } else if (aRefState != ModelAPI_StateDone) {
 627       return ModelAPI_StateInvalidArgument;
 628     }
 629   }
 630   return theCurrent;
 631 }
 632
 633 void Model_Update::updateArguments(FeaturePtr theFeature) {
 634   // perform this method also for disabled features: to make "not done" state for
 635   // features referenced to the active and modified features
 636
 637   static ModelAPI_ValidatorsFactory* aFactory = ModelAPI_Session::get()->validators();
 638
 639   ModelAPI_ExecState aState = theFeature->data()->execState();
 640   if (aState == ModelAPI_StateExecFailed) { // try again failed feature: issue 577
 641     aState = ModelAPI_StateMustBeUpdated;
 642   }
 643   if (aState == ModelAPI_StateInvalidArgument) // a chance to be corrected
 644     aState = ModelAPI_StateMustBeUpdated;
 645   // check the parameters state
 646   // Integer
 647   {
 648     std::list<AttributePtr> anAttrinbutes =
 649       theFeature->data()->attributes(ModelAPI_AttributeInteger::typeId());
 650     std::list<AttributePtr>::iterator anIter = anAttrinbutes.begin();
 651     for(; anIter != anAttrinbutes.end(); anIter++) {
 652       AttributeIntegerPtr anAttribute =
 653         std::dynamic_pointer_cast<ModelAPI_AttributeInteger>(*anIter);
 654       if (anAttribute.get() && !anAttribute->text().empty()) {
 655         if (myIsParamUpdated) {
 656           ModelAPI_AttributeEvalMessage::send(anAttribute, this);
 657         }
 658         if (anAttribute->expressionInvalid()) {
 659           aState = ModelAPI_StateInvalidArgument;
 660         }
 661       }
 662     }
 663   }
 664   // Double
 665   {
 666     std::list<AttributePtr> aDoubles =
 667       theFeature->data()->attributes(ModelAPI_AttributeDouble::typeId());
 668     std::list<AttributePtr>::iterator aDoubleIter = aDoubles.begin();
 669     for(; aDoubleIter != aDoubles.end(); aDoubleIter++) {
 670       AttributeDoublePtr aDouble =
 671         std::dynamic_pointer_cast<ModelAPI_AttributeDouble>(*aDoubleIter);
 672       if (aDouble.get() && !aDouble->text().empty()) {
 673         if (myIsParamUpdated) {
 674           ModelAPI_AttributeEvalMessage::send(aDouble, this);
 675         }
 676         if (aDouble->expressionInvalid()) {
 677           aState = ModelAPI_StateInvalidArgument;
 678         }
 679       }
 680     }
 681   }
 682   // Point
 683   {
 684     std::list<AttributePtr> anAttributes =
 685       theFeature->data()->attributes(GeomDataAPI_Point::typeId());
 686     std::list<AttributePtr>::iterator anIter = anAttributes.begin();
 687     for(; anIter != anAttributes.end(); anIter++) {
 688       AttributePointPtr aPointAttribute =
 689         std::dynamic_pointer_cast<GeomDataAPI_Point>(*anIter);
 690       if (aPointAttribute.get() && (!aPointAttribute->textX().empty() ||
 691           !aPointAttribute->textY().empty() || !aPointAttribute->textZ().empty())) {
 692         if (myIsParamUpdated) {
 693           ModelAPI_AttributeEvalMessage::send(aPointAttribute, this);
 694         }
 695         if ((!aPointAttribute->textX().empty() && aPointAttribute->expressionInvalid(0)) ||
 696           (!aPointAttribute->textY().empty() && aPointAttribute->expressionInvalid(1)) ||
 697           (!aPointAttribute->textZ().empty() && aPointAttribute->expressionInvalid(2)))
 698           aState = ModelAPI_StateInvalidArgument;
 699       }
 700     }
 701   }
 702   // Point2D
 703   {
 704     std::list<AttributePtr> anAttributes =
 705       theFeature->data()->attributes(GeomDataAPI_Point2D::typeId());
 706     std::list<AttributePtr>::iterator anIter = anAttributes.begin();
 707     for(; anIter != anAttributes.end(); anIter++) {
 708       AttributePoint2DPtr aPoint2DAttribute =
 709         std::dynamic_pointer_cast<GeomDataAPI_Point2D>(*anIter);
 710       if (aPoint2DAttribute.get()) {
 711         if (myIsParamUpdated && (!aPoint2DAttribute->textX().empty() ||
 712             !aPoint2DAttribute->textY().empty())) {
 713           ModelAPI_AttributeEvalMessage::send(aPoint2DAttribute, this);
 714         }
 715         if ((!aPoint2DAttribute->textX().empty() && aPoint2DAttribute->expressionInvalid(0)) ||
 716           (!aPoint2DAttribute->textY().empty() && aPoint2DAttribute->expressionInvalid(1)))
 717           aState = ModelAPI_StateInvalidArgument;
 718       }
 719     }
 720   }
 721   // update the selection attributes if any
 722   list<AttributePtr> aRefs =
 723     theFeature->data()->attributes(ModelAPI_AttributeSelection::typeId());
 724   list<AttributePtr>::iterator aRefsIter = aRefs.begin();
 725   for (; aRefsIter != aRefs.end(); aRefsIter++) {
 726     std::shared_ptr<ModelAPI_AttributeSelection> aSel =
 727       std::dynamic_pointer_cast<ModelAPI_AttributeSelection>(*aRefsIter);
 728     ObjectPtr aContext = aSel->context();
 729     // update argument only if the referenced object is ready to use
 730     if (aContext.get() && !aContext->isDisabled()) {
 731       if (isReason(theFeature, aContext)) {
 732         if (!aSel->update()) { // this must be done on execution since it may be long operation
 733           bool isObligatory = !aFactory->isNotObligatory(
 734             theFeature->getKind(), theFeature->data()->id(aSel)) &&
 735             aFactory->isCase(theFeature, theFeature->data()->id(aSel));
 736           if (isObligatory)
 737             aState = ModelAPI_StateInvalidArgument;
 738         }
 739       }
 740     } else if (aContext.get()) {
 741       // here it may be not obligatory, but if the reference is wrong, it should not be correct
 742       bool isObligatory = aFactory->isCase(theFeature, theFeature->data()->id(aSel));
 743       if (isObligatory)
 744         aState = ModelAPI_StateInvalidArgument;
 745     }
 746   }
 747   // update the selection list attributes if any
 748   aRefs = theFeature->data()->attributes(ModelAPI_AttributeSelectionList::typeId());
 749   for (aRefsIter = aRefs.begin(); aRefsIter != aRefs.end(); aRefsIter++) {
 750     std::shared_ptr<ModelAPI_AttributeSelectionList> aSel =
 751       std::dynamic_pointer_cast<ModelAPI_AttributeSelectionList>(*aRefsIter);
 752     for(int a = aSel->size() - 1; a >= 0; a--) {
 753       std::shared_ptr<ModelAPI_AttributeSelection> aSelAttr =
 754         std::dynamic_pointer_cast<ModelAPI_AttributeSelection>(aSel->value(a));
 755       if (aSelAttr) {
 756         ObjectPtr aContext = aSelAttr->context();
 757         // update argument only if the referenced object is ready to use
 758         if (aContext.get() && !aContext->isDisabled()) {
 759           if (isReason(theFeature, aContext)) {
 760             if (!aSelAttr->update()) {
 761               bool isObligatory = !aFactory->isNotObligatory(
 762                 theFeature->getKind(), theFeature->data()->id(aSel)) &&
 763                 aFactory->isCase(theFeature, theFeature->data()->id(aSel));
 764               if (isObligatory)
 765                 aState = ModelAPI_StateInvalidArgument;
 766             }
 767           }
 768         } else if (aContext.get()) {
 769           // here it may be not obligatory, but if the reference is wrong, it should not be correct
 770           bool isObligatory = aFactory->isCase(theFeature, theFeature->data()->id(aSel));
 771           if (isObligatory)
 772             aState = ModelAPI_StateInvalidArgument;
 773         }
 774       }
 775     }
 776   }
 777
 778   if (aState != ModelAPI_StateDone)
 779     theFeature->data()->execState(aState);
 780 }
 781
 782 bool Model_Update::isReason(std::shared_ptr<ModelAPI_Feature>& theFeature,
 783      std::shared_ptr<ModelAPI_Object> theReason)
 784 {
 785   std::map<std::shared_ptr<ModelAPI_Feature>, std::set<std::shared_ptr<ModelAPI_Feature> > >
 786     ::iterator aReasonsIt = myModified.find(theFeature);
 787   if (aReasonsIt != myModified.end()) {
 788     if (aReasonsIt->second.find(theFeature) != aReasonsIt->second.end())
 789       return true; // any is reason if it contains itself
 790     FeaturePtr aReasFeat = std::dynamic_pointer_cast<ModelAPI_Feature>(theReason);
 791     if (!aReasFeat.get()) { // try to get feature of this result
 792       ResultPtr aReasRes = std::dynamic_pointer_cast<ModelAPI_Result>(theReason);
 793       if (aReasRes.get())
 794         aReasFeat = theReason->document()->feature(aReasRes);
 795     }
 796     if (aReasonsIt->second.find(aReasFeat) != aReasonsIt->second.end())
 797       return true;
 798   }
 799   // another try: postponed modification by not-persistences
 800   std::map<std::shared_ptr<ModelAPI_Feature>, std::set<std::shared_ptr<ModelAPI_Feature> > >
 801     ::iterator aNotPersist = myNotPersistentRefs.find(theFeature);
 802   if (aNotPersist != myNotPersistentRefs.end()) {
 803     FeaturePtr aReasFeat = std::dynamic_pointer_cast<ModelAPI_Feature>(theReason);
 804     if (!aReasFeat.get()) { // try to get feature of this result
 805       ResultPtr aReasRes = std::dynamic_pointer_cast<ModelAPI_Result>(theReason);
 806       if (aReasRes.get())
 807         aReasFeat = theReason->document()->feature(aReasRes);
 808     }
 809     if (aNotPersist->second.find(aReasFeat) != aNotPersist->second.end())
 810       return true;
 811   }
 812
 813   // this case only for not-previewed items update state, nothing is changed in args for it
 814   return false;
 815 }
 816
 817 void Model_Update::executeFeature(FeaturePtr theFeature)
 818 {
 819 #ifdef DEB_UPDATE
 820   std::cout<<"Execute Feature "<<theFeature->name()<<std::endl;
 821 #endif
 822   // execute in try-catch to avoid internal problems of the feature
 823   ModelAPI_ExecState aState = ModelAPI_StateDone;
 824   theFeature->data()->execState(ModelAPI_StateDone);
 825   try {
 826     theFeature->execute();
 827     if (theFeature->data()->execState() != ModelAPI_StateDone) {
 828       aState = ModelAPI_StateExecFailed;
 829     } else {
 830       aState = ModelAPI_StateDone;
 831     }
 832   } catch(...) {
 833     aState = ModelAPI_StateExecFailed;
 834     Events_InfoMessage("Model_Update",
 835       "Feature %1 has failed during the execution").arg(theFeature->getKind()).send();
 836   }
 837   // The macro feature has to be deleted in any case even its execution is failed
 838   myWaitForFinish.insert(theFeature);
 839   if (aState != ModelAPI_StateDone) {
 840     theFeature->eraseResults();
 841   }
 842   theFeature->data()->setUpdateID(ModelAPI_Session::get()->transactionID());
 843   redisplayWithResults(theFeature, aState);
 844 }
 845
 846 void Model_Update::updateStability(void* theSender)
 847 {
 848   static ModelAPI_ValidatorsFactory* aFactory = ModelAPI_Session::get()->validators();
 849   if (theSender) {
 850     bool added = false; // object may be was crated
 851     ModelAPI_Object* aSender = static_cast<ModelAPI_Object*>(theSender);
 852     if (aSender && aSender->document()) {
 853       FeaturePtr aFeatureSender =
 854         std::dynamic_pointer_cast<ModelAPI_Feature>(aSender->data()->owner());
 855       if (aFeatureSender.get()) {
 856         Model_Objects* aDocObjects =
 857           std::dynamic_pointer_cast<Model_Document>(aSender->document())->objects();
 858         if (aDocObjects) {
 859           //aDocObjects->synchronizeBackRefs();
 860           // remove or add all concealment refs from this feature
 861           std::list<std::pair<std::string, std::list<ObjectPtr> > > aRefs;
 862           aSender->data()->referencesToObjects(aRefs);
 863           std::list<std::pair<std::string, std::list<ObjectPtr> > >::iterator
 864             aRefIt = aRefs.begin();
 865           for(; aRefIt != aRefs.end(); aRefIt++) {
 866             if (!aFactory->isConcealed(aFeatureSender->getKind(), aRefIt->first))
 867               // take into account only concealed references
 868               // (do not remove the sketch constraint and the edge on constraint edit)
 869               continue;
 870             std::list<ObjectPtr>& aRefFeaturesList = aRefIt->second;
 871             std::list<ObjectPtr>::iterator aReferenced = aRefFeaturesList.begin();
 872             for(; aReferenced != aRefFeaturesList.end(); aReferenced++) {
 873                // stability is only on results: feature to feature reference mean nested
 874               // features, that will remove nesting references
 875               if (aReferenced->get() && (*aReferenced)->data()->isValid() &&
 876                 (*aReferenced)->groupName() != ModelAPI_Feature::group()) {
 877                 std::shared_ptr<Model_Data> aData =
 878                   std::dynamic_pointer_cast<Model_Data>((*aReferenced)->data());
 879                 if (aFeatureSender->isStable()) {
 880                   aData->addBackReference(aFeatureSender, aRefIt->first);
 881                 } else {
 882                   aData->removeBackReference(aFeatureSender, aRefIt->first);
 883                   added = true; // remove of concealment may be caused creation of some result
 884                 }
 885               }
 886             }
 887           }
 888         }
 889       }
 890     }
 891     if (added) {
 892       static Events_Loop* aLoop = Events_Loop::loop();
 893       static Events_ID kEventCreated = aLoop->eventByName(EVENT_OBJECT_CREATED);
 894       aLoop->flush(kEventCreated);
 895     }
 896   }
 897 }
 898
 899 void Model_Update::updateSelection(const std::set<std::shared_ptr<ModelAPI_Object> >& theObjects)
 900 {
 901   std::set<std::shared_ptr<ModelAPI_Object> >::iterator anObj = theObjects.begin();
 902   for(; anObj != theObjects.end(); anObj++) {
 903     list<AttributePtr> aRefs =
 904       (*anObj)->data()->attributes(ModelAPI_AttributeSelection::typeId());
 905     list<AttributePtr>::iterator aRefsIter = aRefs.begin();
 906     for (; aRefsIter != aRefs.end(); aRefsIter++) {
 907       std::shared_ptr<Model_AttributeSelection> aSel =
 908         std::dynamic_pointer_cast<Model_AttributeSelection>(*aRefsIter);
 909       aSel->updateInHistory();
 910     }
 911     // update the selection list attributes if any
 912     aRefs = (*anObj)->data()->attributes(ModelAPI_AttributeSelectionList::typeId());
 913     for (aRefsIter = aRefs.begin(); aRefsIter != aRefs.end(); aRefsIter++) {
 914       std::shared_ptr<ModelAPI_AttributeSelectionList> aSel =
 915         std::dynamic_pointer_cast<ModelAPI_AttributeSelectionList>(*aRefsIter);
 916       for(int a = aSel->size() - 1; a >= 0; a--) {
 917         std::shared_ptr<Model_AttributeSelection> aSelAttr =
 918           std::dynamic_pointer_cast<Model_AttributeSelection>(aSel->value(a));
 919         if (aSelAttr.get())
 920           aSelAttr->updateInHistory();
 921       }
 922     }
 923   }
 924 }