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 kRebuildEvent = aLoop->eventByName("Rebuild");
  44   aLoop->registerListener(this, kRebuildEvent);
  45   static const Events_ID kCreatedEvent = Events_Loop::loop()->eventByName(EVENT_OBJECT_CREATED);
  46   aLoop->registerListener(this, kCreatedEvent);
  47   static const Events_ID kUpdatedEvent = Events_Loop::loop()->eventByName(EVENT_OBJECT_UPDATED);
  48   aLoop->registerListener(this, kUpdatedEvent);
  49   static const Events_ID kMovedEvent = Events_Loop::loop()->eventByName(EVENT_OBJECT_MOVED);
  50   aLoop->registerListener(this, kMovedEvent);
  51   static const Events_ID kOpFinishEvent = aLoop->eventByName("FinishOperation");
  52   aLoop->registerListener(this, kOpFinishEvent);
  53   static const Events_ID kOpAbortEvent = aLoop->eventByName("AbortOperation");
  54   aLoop->registerListener(this, kOpAbortEvent);
  55   static const Events_ID kOpStartEvent = aLoop->eventByName("StartOperation");
  56   aLoop->registerListener(this, kOpStartEvent);
  57   static const Events_ID kStabilityEvent = aLoop->eventByName(EVENT_STABILITY_CHANGED);
  58   aLoop->registerListener(this, kStabilityEvent);
  59
  60   /* not needed now with history line
  61   Config_PropManager::registerProp("Model update", "automatic_rebuild", "Rebuild immediately",
  62                                    Config_Prop::Boolean, "false");*/
  63   myIsAutomatic = true;
  64   //  Config_PropManager::findProp("Model update", "automatic_rebuild")->value() == "true";
  65   myIsParamUpdated = false;
  66   myIsFinish = false;
  67   myModification = 0;
  68   myModificationInStartProcessing = 0;
  69 }
  70
  71 void Model_Update::processEvent(const std::shared_ptr<Events_Message>& theMessage)
  72 {
  73   static Events_Loop* aLoop = Events_Loop::loop();
  74   static const Events_ID kChangedEvent = aLoop->eventByName("PreferenceChanged");
  75   static const Events_ID kRebuildEvent = aLoop->eventByName("Rebuild");
  76   static const Events_ID kCreatedEvent = aLoop->eventByName(EVENT_OBJECT_CREATED);
  77   static const Events_ID kUpdatedEvent = aLoop->eventByName(EVENT_OBJECT_UPDATED);
  78   static const Events_ID kMovedEvent = Events_Loop::loop()->eventByName(EVENT_OBJECT_MOVED);
  79   static const Events_ID kOpFinishEvent = aLoop->eventByName("FinishOperation");
  80   static const Events_ID kOpAbortEvent = aLoop->eventByName("AbortOperation");
  81   static const Events_ID kOpStartEvent = aLoop->eventByName("StartOperation");
  82   static const Events_ID kStabilityEvent = aLoop->eventByName(EVENT_STABILITY_CHANGED);
  83 #ifdef DEB_UPDATE
  84   std::cout<<"****** Event "<<theMessage->eventID().eventText()<<std::endl;
  85 #endif
  86   if (theMessage->eventID() == kStabilityEvent)
  87     updateStability(theMessage->sender());
  88   if (theMessage->eventID() == kChangedEvent) { // automatic and manual rebuild flag is changed
  89     /*bool aPropVal =
  90       Config_PropManager::findProp("Model update", "automatic_rebuild")->value() == "true";
  91     if (aPropVal != myIsAutomatic) { // something is changed
  92       // myIsAutomatic = aPropVal;
  93       if (myIsAutomatic) // higher level of automatization => to rebuild
  94         processOperation(false);
  95     }*/
  96     return;
  97   } else if (theMessage->eventID() == kRebuildEvent) { // the rebuild command
  98     processOperation(true);
  99   } else if (theMessage->eventID() == kCreatedEvent || theMessage->eventID() == kUpdatedEvent ||
 100              theMessage->eventID() == kMovedEvent) {
 101     std::shared_ptr<ModelAPI_ObjectUpdatedMessage> aMsg =
 102         std::dynamic_pointer_cast<ModelAPI_ObjectUpdatedMessage>(theMessage);
 103     const std::set<ObjectPtr>& anObjs = aMsg->objects();
 104     std::set<ObjectPtr>::const_iterator anObjIter = anObjs.cbegin();
 105     bool isOnlyResults = true; // check that only results were changed: only redisplay is needed
 106     for(; anObjIter != anObjs.cend(); anObjIter++) {
 107       if (!std::dynamic_pointer_cast<ModelAPI_Result>(*anObjIter).get()) {
 108         isOnlyResults = false;
 109       }
 110       if ((*anObjIter)->groupName() == ModelAPI_ResultParameter::group()) {
 111         myIsParamUpdated = true;
 112       }
 113       if (myIsExecuted) // modifications from outside are with never IDs to take them into account in the current updates
 114         myModification++;
 115       // on undo/redo, abort do not update persisten features
 116       FeaturePtr anUpdated = std::dynamic_pointer_cast<ModelAPI_Feature>(*anObjIter);
 117       if (std::dynamic_pointer_cast<Model_Document>((*anObjIter)->document())->executeFeatures() ||
 118           (anUpdated.get() && !anUpdated->isPersistentResult())) {
 119         // created objects are always must be up to date (python box feature)
 120         // and updated not in internal uptation chain
 121         myUpdated[*anObjIter] = myModification;
 122
 123         // something is updated during the execution: re-execute it (sketch update by parameters or
 124         // Box macro that updates the upper features during the execution)
 125         if (myIsExecuted) {
 126           FeaturePtr anUpdated = std::dynamic_pointer_cast<ModelAPI_Feature>(*anObjIter);
 127           if (anUpdated.get() &&  anUpdated->data()->isValid())
 128             iterateUpdateBreak(anUpdated);
 129         }
 130 #ifdef DEB_UPDATE
 131         if (myIsExecuted) std::cout<<"During execution ";
 132         if ((*anObjIter)->data() && (*anObjIter)->data()->isValid()) {
 133           std::cout<<"add updated "<<(*anObjIter)->groupName()<<" "
 134             <<(*anObjIter)->data()->name()<<std::endl;
 135         }
 136 #endif
 137       }
 138
 139     }
 140     // this event is for solver update, not here, do not react immediately
 141     if (!isOnlyResults && !(theMessage->eventID() == kMovedEvent))
 142       processOperation(false);
 143   } else if (theMessage->eventID() == kOpFinishEvent || theMessage->eventID() == kOpAbortEvent ||
 144       theMessage->eventID() == kOpStartEvent) {
 145
 146     if (!(theMessage->eventID() == kOpStartEvent)) {
 147       myIsFinish = true;
 148       processOperation(true, theMessage->eventID() == kOpFinishEvent);
 149       myIsFinish = false;
 150     }
 151     // remove all macros before clearing all created
 152     std::set<ObjectPtr>::iterator anUpdatedIter = myWaitForFinish.begin();
 153     while(anUpdatedIter != myWaitForFinish.end()) {
 154       FeaturePtr aFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(*anUpdatedIter);
 155       if (aFeature.get()) {
 156         // remove macro on finish
 157         if (aFeature->isMacro()) {
 158           aFeature->document()->removeFeature(aFeature);
 159           myWaitForFinish.erase(aFeature);
 160         }
 161         // to avoid the map update problems on "remove"
 162         if (myWaitForFinish.find(aFeature) == myWaitForFinish.end()) {
 163           anUpdatedIter = myWaitForFinish.begin();
 164         } else {
 165           anUpdatedIter++;
 166         }
 167       } else {
 168         anUpdatedIter++;
 169       }
 170     }
 171     // in the end of transaction everything is updated, so clear the old objects (the only one
 172     // place where results are cleared)
 173     myIsParamUpdated = false;
 174     myUpdated.clear();
 175     // do not erase it since there may be modification increment on start of operation
 176     //myModification = 0;
 177     myWaitForFinish.clear();
 178   }
 179 }
 180
 181 bool Model_Update::iterateUpdate(std::shared_ptr<ModelAPI_CompositeFeature> theFeature)
 182 {
 183   myProcessIterator.push_back(IterationItem(theFeature));
 184   IterationItem& aCurrent = *myProcessIterator.rbegin();
 185   // two cycles: parameters must be processed first
 186   for(aCurrent.startIteration(true); aCurrent.more(); aCurrent.next()) {
 187     if (aCurrent.current()->getKind() == "Parameter")
 188       updateFeature(aCurrent.current());
 189   }
 190   // number of subs can be changed in execution: like fillet
 191   for(aCurrent.startIteration(false); aCurrent.more(); aCurrent.next()) {
 192     FeaturePtr aSub = aCurrent.current();
 193     if (aSub->getKind() != "Parameter")
 194       updateFeature(aSub);
 195   }
 196   // processing is finished, so, remove the iterated
 197   bool aResult = !aCurrent.isBreaked(); // iteration is finished correctly, not breaked
 198   myProcessIterator.pop_back();
 199   return aResult;
 200 }
 201
 202 void Model_Update::iterateUpdateBreak(std::shared_ptr<ModelAPI_Feature> theFeature)
 203 {
 204   // checking that this feature is before the current iterated one: otherwise break is not needed
 205   std::list<IterationItem>::reverse_iterator aProcessed = myProcessIterator.rbegin();
 206   for(; aProcessed != myProcessIterator.rend(); aProcessed++) {
 207     if (aProcessed->isIterated(theFeature)) {
 208       if (aProcessed->isEarlierThanCurrent(theFeature)) {
 209         // break all lower level iterators
 210         std::list<IterationItem>::reverse_iterator aBreaked = myProcessIterator.rbegin();
 211         for(; aBreaked != aProcessed; aBreaked++) {
 212           aBreaked->setBreaked();
 213         }
 214         // for the current breaked, set iteration to this feature precisely
 215         aBreaked->setCurrentBefore(theFeature);
 216         //myModification++;
 217       }
 218       // the iterator that contains breaked is found, so, nothing else is needed
 219       return;
 220     }
 221   }
 222   // if this feature is not found in the list of the currently iterated, try to break the parent
 223   FeaturePtr aParent = ModelAPI_Tools::compositeOwner(theFeature);
 224   if (aParent.get())
 225     iterateUpdateBreak(aParent);
 226 }
 227
 228 void Model_Update::processOperation(const bool theTotalUpdate, const bool theFinish)
 229 {
 230   // perform update of everything if needed
 231   if (!myIsExecuted) {
 232     #ifdef DEB_UPDATE
 233       std::cout<<"****** Start processing"<<std::endl;
 234     #endif
 235     myIsExecuted = true;
 236     myModificationInStartProcessing = myModification;
 237
 238     bool isAutomaticChanged = false;
 239
 240     if (theTotalUpdate && !myIsAutomatic) { // Apply button now works as "Rebuild"
 241       isAutomaticChanged = true;
 242       myIsAutomatic = true;
 243     }
 244     // modifications inside of the iteration will be different from modification that comes outside
 245     myModification++;
 246     // init iteration from the root document
 247     iterateUpdate(CompositeFeaturePtr());
 248
 249     if (isAutomaticChanged) myIsAutomatic = false;
 250     myIsExecuted = false;
 251     // flush updates just before "myModification" increment: to distinguish
 252     // updates by "execute" produced by this updater and other updates, coming outside,
 253     // which are really important for "processEvent" of this updater
 254     static Events_Loop* aLoop = Events_Loop::loop();
 255     static const Events_ID kUpdatedEvent = aLoop->eventByName(EVENT_OBJECT_UPDATED);
 256     aLoop->flush(kUpdatedEvent);
 257     myModification++;
 258
 259     // flush to update display
 260     static Events_ID EVENT_DISP = aLoop->eventByName(EVENT_OBJECT_TO_REDISPLAY);
 261     aLoop->flush(EVENT_DISP);
 262     #ifdef DEB_UPDATE
 263       std::cout<<"****** End processing"<<std::endl;
 264     #endif
 265   }
 266 }
 267
 268 bool Model_Update::isProcessed(const int theModificationID)
 269 {
 270   return theModificationID >= myModificationInStartProcessing &&
 271          theModificationID <= myModification;
 272 }
 273
 274 void Model_Update::updateFeature(FeaturePtr theFeature)
 275 {
 276   // check all features this feature depended on (recursive call of updateFeature)
 277   static ModelAPI_ValidatorsFactory* aFactory = ModelAPI_Session::get()->validators();
 278
 279   if (theFeature->isDisabled()) {
 280     // possibly sub-elements are not disabled?
 281     CompositeFeaturePtr aCompos = std::dynamic_pointer_cast<ModelAPI_CompositeFeature>(theFeature);
 282     if (aCompos)
 283       iterateUpdate(aCompos);
 284     return;
 285   }
 286
 287   // do not execute the composite that contains the current
 288   bool isPostponedMain = false;
 289   CompositeFeaturePtr aMain = std::dynamic_pointer_cast<ModelAPI_CompositeFeature>(theFeature);
 290   if (theFeature->getKind() == "ExtrusionSketch" && aMain.get()) {
 291     CompositeFeaturePtr aCurrentOwner =
 292       ModelAPI_Tools::compositeOwner(theFeature->document()->currentFeature(false));
 293     isPostponedMain = aCurrentOwner.get() && aMain->isSub(aCurrentOwner);
 294   }
 295
 296   #ifdef DEB_UPDATE
 297     std::cout<<"Update Feature "<<theFeature->name()<<std::endl;
 298   #endif
 299   CompositeFeaturePtr aCompos = std::dynamic_pointer_cast<ModelAPI_CompositeFeature>(theFeature);
 300   // If automatice update is not needed and feature attributes were not updated right now,
 301   // do not execute it and do not update arguments.
 302   if (!myIsAutomatic &&
 303        (myUpdated.find(theFeature) == myUpdated.end() || !isProcessed(myUpdated[theFeature]))
 304        && !aCompos.get()) {
 305     // execute will be performed later, but some features may have not-result
 306     // presentations, so call update for them (like coincidence in the sketcher)
 307     static Events_ID EVENT_DISP = Events_Loop::loop()->eventByName(EVENT_OBJECT_TO_REDISPLAY);
 308     ModelAPI_EventCreator::get()->sendUpdated(theFeature, EVENT_DISP);
 309     return;
 310   }
 311
 312   // Update selection and parameters attributes first, before sub-features analysis (sketch plane).
 313   updateArguments(theFeature);
 314
 315   // composite feature must be executed after sub-features execution
 316   if (aCompos) {
 317     if (!iterateUpdate(aCompos))
 318       return; // iteration was interrupted, so, interrupt the update of this feature (it will be done later)
 319     // reupdate arguments of composite feature: it may be changed during subs execution
 320
 321     // issue 955: extrusion fuse sketch naming must be updated after the sketch update
 322     // so, comment this: if (theFeature->data()->execState() != ModelAPI_StateMustBeUpdated)
 323       updateArguments(theFeature);
 324   }
 325   // this checking must be after the composite feature sub-elements processing:
 326   // composite feature status may depend on it's subelements
 327   if (theFeature->data()->execState() == ModelAPI_StateInvalidArgument) {
 328     theFeature->eraseResults();
 329     redisplayWithResults(theFeature, ModelAPI_StateInvalidArgument); // result also must be updated
 330     return;
 331   }
 332
 333   // only the currently updated features are executed
 334   bool aJustUpdated = myUpdated.find(theFeature) != myUpdated.end();
 335   if (aJustUpdated) {
 336     // if preview is not needed, the created feature was not updated before, so, myModification is not actual for this
 337     if (theFeature->isPreviewNeeded()) {
 338       aJustUpdated = isProcessed(myUpdated[theFeature]);
 339     }
 340   }
 341
 342   if (myIsAutomatic && theFeature->data()->execState() == ModelAPI_StateMustBeUpdated)
 343     aJustUpdated = true;
 344
 345   // On abort, undo or redo execute is not needed: results in document are updated automatically
 346   // But redisplay is needed: results are updated, must be also updated in the viewer.
 347   if (aJustUpdated &&
 348       !std::dynamic_pointer_cast<Model_Document>(theFeature->document())->executeFeatures()) {
 349     if (!theFeature->isPersistentResult()) { // not persistent must be re-executed on abort, etc.
 350       ModelAPI_ExecState aState = theFeature->data()->execState();
 351       if (aFactory->validate(theFeature)) {
 352         executeFeature(theFeature);
 353       } else {
 354         theFeature->eraseResults();
 355         redisplayWithResults(theFeature, ModelAPI_StateInvalidArgument); // result also must be updated
 356       }
 357     } else {
 358       redisplayWithResults(theFeature, ModelAPI_StateNothing);
 359       if (theFeature->data()->execState() == ModelAPI_StateMustBeUpdated) { // it is done (in the tree)
 360         theFeature->data()->execState(ModelAPI_StateDone);
 361       }
 362       // it will be not updated with new modifications: only the currently updated features are updated
 363       //if (myUpdated.find(theFeature) != myUpdated.end()) {
 364       //  myUpdated.erase(theFeature); // do not update this persistent feature even in the future
 365       //}
 366     }
 367     return;
 368   }
 369
 370   // execute feature if it must be updated
 371   if (theFeature->isPreviewNeeded() || myIsFinish) {
 372     if (aJustUpdated) {
 373       ModelAPI_ExecState aState = theFeature->data()->execState();
 374       if (aFactory->validate(theFeature)) {
 375         if (!isPostponedMain) {
 376           #ifdef DEB_UPDATE
 377             std::cout<<"Execute Feature "<<theFeature->name()<<std::endl;
 378           #endif
 379           executeFeature(theFeature);
 380         }
 381       } else {
 382         #ifdef DEB_UPDATE
 383           std::cout<<"Feature is not valid, erase results "<<theFeature->name()<<std::endl;
 384         #endif
 385         theFeature->eraseResults();
 386         redisplayWithResults(theFeature, ModelAPI_StateInvalidArgument); // result also must be updated
 387       }
 388     }
 389   } else { // preview is not needed => make state Done
 390     if (theFeature->data()->execState() == ModelAPI_StateMustBeUpdated) {
 391       theFeature->data()->execState(ModelAPI_StateDone);
 392       if (aJustUpdated) {// store that it must be updated on finish
 393         myUpdated[theFeature] = myModification;
 394         aFactory->validate(theFeature); // need to be validated to update the "Apply" state if not previewed
 395       }
 396     }
 397   }
 398 }
 399
 400 void Model_Update::redisplayWithResults(FeaturePtr theFeature, const ModelAPI_ExecState theState)
 401 {
 402   // make updated and redisplay all results
 403   static Events_ID EVENT_DISP = Events_Loop::loop()->eventByName(EVENT_OBJECT_TO_REDISPLAY);
 404
 405   std::list<ResultPtr> allResults;
 406   ModelAPI_Tools::allResults(theFeature, allResults);
 407   std::list<ResultPtr>::iterator aRIter = allResults.begin();
 408   for (; aRIter != allResults.cend(); aRIter++) {
 409     std::shared_ptr<ModelAPI_Result> aRes = *aRIter;
 410     if (!aRes->isDisabled()) {// update state only for enabled results (Placement Result Part may make the original Part Result as invalid)
 411       aRes->data()->execState(theState);
 412       if (theState == ModelAPI_StateDone) // feature become "done", so execution changed results
 413         myUpdated[aRes] = myModification;
 414     }
 415     if (theFeature->data()->updateID() > aRes->data()->updateID()) {
 416       aRes->data()->setUpdateID(theFeature->data()->updateID());
 417     }
 418     ModelAPI_EventCreator::get()->sendUpdated(aRes, EVENT_DISP);
 419   }
 420   // to redisplay "presentable" feature (for ex. distance constraint)
 421   ModelAPI_EventCreator::get()->sendUpdated(theFeature, EVENT_DISP);
 422   theFeature->data()->execState(theState);
 423   myUpdated[theFeature] = myModification; // feature is also updated to avoid re-updation of it
 424 }
 425
 426 /// Updates the state by the referenced object: if something bad with it, set state for this one
 427 ModelAPI_ExecState stateByReference(ObjectPtr theTarget, const ModelAPI_ExecState theCurrent)
 428 {
 429   if (theTarget) {
 430     ModelAPI_ExecState aRefState = theTarget->data()->execState();
 431     if (aRefState == ModelAPI_StateMustBeUpdated) {
 432       if (theCurrent == ModelAPI_StateDone)
 433         return ModelAPI_StateMustBeUpdated;
 434     } else if (aRefState != ModelAPI_StateDone) {
 435       return ModelAPI_StateInvalidArgument;
 436     }
 437   }
 438   return theCurrent;
 439 }
 440
 441 bool Model_Update::isOlder(std::shared_ptr<ModelAPI_Feature> theFeature,
 442                            std::shared_ptr<ModelAPI_Object> theArgument)
 443 {
 444   int aFeatureID = theFeature->data()->updateID();
 445   int anArgID = theArgument->data()->updateID();
 446   if (aFeatureID < anArgID)
 447     return true;
 448   std::map<std::shared_ptr<ModelAPI_Object>, int >::iterator anAIter = myUpdated.find(theArgument);
 449   if (anAIter == myUpdated.end())
 450     return false;
 451   // for the modification IDs compare results: modification ID of feature means only that attributes
 452   // of this feature were updated, but if results are obsolete relatively to the referenced results,
 453   // the feature must be updated
 454   std::list<ResultPtr> aResults;
 455   ModelAPI_Tools::allResults(theFeature, aResults);
 456   std::list<ResultPtr>::iterator aRIter = aResults.begin();
 457   for (; aRIter != aResults.cend(); aRIter++) {
 458     std::shared_ptr<ModelAPI_Result> aRes = *aRIter;
 459     if (!aRes->isDisabled()) {
 460       std::map<std::shared_ptr<ModelAPI_Object>, int >::iterator anRIter = myUpdated.find(aRes);
 461       int aResultID = aRes->data()->updateID();
 462       if (aResultID < anArgID)
 463         return true;
 464       if (anRIter == myUpdated.end()) // not updated at all
 465         return true;
 466       if (anRIter->second < anAIter->second)
 467         return true;
 468     }
 469   }
 470   // also check a feature: some have no parameters,
 471   // but must be updated anyway (like Coincidence of sketch) to be redisplayed
 472   std::map<std::shared_ptr<ModelAPI_Object>, int >::iterator aFIter = myUpdated.find(theFeature);
 473   if (aFIter == myUpdated.end())
 474     return true; // argument is updated, but feature is not updated at all
 475   return aFIter->second < anAIter->second;
 476 }
 477
 478 void Model_Update::updateArguments(FeaturePtr theFeature) {
 479   // perform this method also for disabled features: to make "not done" state for
 480   // features referenced to the active and modified features
 481
 482   static ModelAPI_ValidatorsFactory* aFactory = ModelAPI_Session::get()->validators();
 483
 484   ModelAPI_ExecState aState = theFeature->data()->execState();
 485   if (aState == ModelAPI_StateExecFailed) { // try again failed feature: issue 577
 486     aState = ModelAPI_StateMustBeUpdated;
 487   }
 488   if (aState == ModelAPI_StateInvalidArgument) // a chance to be corrected
 489     aState = ModelAPI_StateMustBeUpdated;
 490   // check the parameters state
 491   // Integer
 492   {
 493     std::list<AttributePtr> anAttrinbutes =
 494       theFeature->data()->attributes(ModelAPI_AttributeInteger::typeId());
 495     std::list<AttributePtr>::iterator anIter = anAttrinbutes.begin();
 496     for(; anIter != anAttrinbutes.end(); anIter++) {
 497       AttributeIntegerPtr anAttribute =
 498         std::dynamic_pointer_cast<ModelAPI_AttributeInteger>(*anIter);
 499       if (anAttribute.get() && !anAttribute->text().empty()) {
 500         if (myIsParamUpdated) {
 501           ModelAPI_AttributeEvalMessage::send(anAttribute, this);
 502         }
 503         if (anAttribute->expressionInvalid()) {
 504           aState = ModelAPI_StateInvalidArgument;
 505         }
 506       }
 507     }
 508   }
 509   // Double
 510   {
 511     std::list<AttributePtr> aDoubles =
 512       theFeature->data()->attributes(ModelAPI_AttributeDouble::typeId());
 513     std::list<AttributePtr>::iterator aDoubleIter = aDoubles.begin();
 514     for(; aDoubleIter != aDoubles.end(); aDoubleIter++) {
 515       AttributeDoublePtr aDouble =
 516         std::dynamic_pointer_cast<ModelAPI_AttributeDouble>(*aDoubleIter);
 517       if (aDouble.get() && !aDouble->text().empty()) {
 518         if (myIsParamUpdated) {
 519           ModelAPI_AttributeEvalMessage::send(aDouble, this);
 520         }
 521         if (aDouble->expressionInvalid()) {
 522           aState = ModelAPI_StateInvalidArgument;
 523         }
 524       }
 525     }
 526   }
 527   // Point
 528   {
 529     std::list<AttributePtr> anAttributes =
 530       theFeature->data()->attributes(GeomDataAPI_Point::typeId());
 531     std::list<AttributePtr>::iterator anIter = anAttributes.begin();
 532     for(; anIter != anAttributes.end(); anIter++) {
 533       AttributePointPtr aPointAttribute =
 534         std::dynamic_pointer_cast<GeomDataAPI_Point>(*anIter);
 535       if (aPointAttribute.get()) {
 536         if (myIsParamUpdated) {
 537           ModelAPI_AttributeEvalMessage::send(aPointAttribute, this);
 538         }
 539         if ((!aPointAttribute->textX().empty() && aPointAttribute->expressionInvalid(0)) ||
 540           (!aPointAttribute->textY().empty() && aPointAttribute->expressionInvalid(1)) ||
 541           (!aPointAttribute->textZ().empty() && aPointAttribute->expressionInvalid(2)))
 542           aState = ModelAPI_StateInvalidArgument;
 543       }
 544     }
 545   }
 546   // Point2D
 547   {
 548     std::list<AttributePtr> anAttributes =
 549       theFeature->data()->attributes(GeomDataAPI_Point2D::typeId());
 550     std::list<AttributePtr>::iterator anIter = anAttributes.begin();
 551     for(; anIter != anAttributes.end(); anIter++) {
 552       AttributePoint2DPtr aPoint2DAttribute =
 553         std::dynamic_pointer_cast<GeomDataAPI_Point2D>(*anIter);
 554       if (aPoint2DAttribute.get()) {
 555         if (myIsParamUpdated) {
 556           ModelAPI_AttributeEvalMessage::send(aPoint2DAttribute, this);
 557         }
 558         if ((!aPoint2DAttribute->textX().empty() && aPoint2DAttribute->expressionInvalid(0)) ||
 559           (!aPoint2DAttribute->textY().empty() && aPoint2DAttribute->expressionInvalid(1)))
 560           aState = ModelAPI_StateInvalidArgument;
 561       }
 562     }
 563   }
 564
 565   //if (aState == ModelAPI_StateDone) {// all referenced objects are ready to be used
 566   //std::cout<<"Execute feature "<<theFeature->getKind()<<std::endl;
 567   // before execution update the selection attributes if any
 568   list<AttributePtr> aRefs =
 569     theFeature->data()->attributes(ModelAPI_AttributeSelection::typeId());
 570   list<AttributePtr>::iterator aRefsIter = aRefs.begin();
 571   for (; aRefsIter != aRefs.end(); aRefsIter++) {
 572     std::shared_ptr<ModelAPI_AttributeSelection> aSel =
 573       std::dynamic_pointer_cast<ModelAPI_AttributeSelection>(*aRefsIter);
 574     ObjectPtr aContext = aSel->context();
 575     // update argument only if the referenced object is changed
 576     if (aContext.get() && !aContext->isDisabled()) {
 577       bool isObligatory = !aFactory->isNotObligatory(
 578         theFeature->getKind(), theFeature->data()->id(aSel)) &&
 579         aFactory->isCase(theFeature, theFeature->data()->id(aSel));
 580       if (isOlder(theFeature, aContext)) {
 581         if (aState == ModelAPI_StateDone)
 582           aState = ModelAPI_StateMustBeUpdated;
 583         if (!aSel->update()) { // this must be done on execution since it may be long operation
 584           if (isObligatory)
 585             aState = ModelAPI_StateInvalidArgument;
 586         }
 587       } else if (aSel->isInvalid()) { // not needed to update, but invalid (stated previously)
 588         if (isObligatory)
 589           aState = ModelAPI_StateInvalidArgument;
 590       }
 591     }
 592   }
 593   aRefs = theFeature->data()->attributes(ModelAPI_AttributeSelectionList::typeId());
 594   for (aRefsIter = aRefs.begin(); aRefsIter != aRefs.end(); aRefsIter++) {
 595     std::shared_ptr<ModelAPI_AttributeSelectionList> aSel =
 596       std::dynamic_pointer_cast<ModelAPI_AttributeSelectionList>(*aRefsIter);
 597     for(int a = aSel->size() - 1; a >= 0; a--) {
 598       std::shared_ptr<ModelAPI_AttributeSelection> aSelAttr =
 599         std::dynamic_pointer_cast<ModelAPI_AttributeSelection>(aSel->value(a));
 600       if (aSelAttr) {
 601         ObjectPtr aContext = aSelAttr->context();
 602         // update argument onlt if the referenced object is changed
 603         if (aContext.get() && !aContext->isDisabled()) {
 604           bool isObligatory = !aFactory->isNotObligatory(
 605             theFeature->getKind(), theFeature->data()->id(aSel)) &&
 606             aFactory->isCase(theFeature, theFeature->data()->id(aSel));
 607           if (isOlder(theFeature, aContext)) {
 608             if (aState == ModelAPI_StateDone)
 609                 aState = ModelAPI_StateMustBeUpdated;
 610             if (!aSelAttr->update()) {
 611               if (isObligatory)
 612                 aState = ModelAPI_StateInvalidArgument;
 613             }
 614           } else if (aSelAttr->isInvalid()) {
 615             if (isObligatory)
 616               aState = ModelAPI_StateInvalidArgument;
 617           }
 618         }
 619       }
 620     }
 621   }
 622   // check all references: if referenced objects are updated, this object also must be updated
 623   // also check state of referenced objects: if they are not ready, inherit corresponding state
 624   std::list<std::pair<std::string, std::list<ObjectPtr> > > aRefsObj;
 625   std::shared_ptr<Model_Data> aData = std::dynamic_pointer_cast<Model_Data>(theFeature->data());
 626   aData->referencesToObjects(aRefsObj);
 627   std::list<std::pair<std::string, std::list<ObjectPtr> > >::iterator aRef = aRefsObj.begin();
 628   for(; aRef != aRefsObj.end(); aRef++) {
 629     std::list<ObjectPtr>::iterator aRefObj = aRef->second.begin();
 630     for(; aRefObj != aRef->second.end(); aRefObj++) {
 631       // if reference is null, it may mean that this reference is to other document
 632       // the does not supported by RefList: parameters may be recomputed
 633       if (!aRefObj->get() && theFeature->firstResult().get() &&
 634                theFeature->firstResult()->groupName() == ModelAPI_ResultParameter::group()) {
 635           if (aState == ModelAPI_StateDone)
 636             aState = ModelAPI_StateMustBeUpdated;
 637       } else if (aRefObj->get() && isOlder(theFeature, *aRefObj)) {
 638         if (aState == ModelAPI_StateDone)
 639           aState = ModelAPI_StateMustBeUpdated;
 640       }
 641       aState = stateByReference(*aRefObj, aState);
 642     }
 643   }
 644   // composites sub-elements
 645   CompositeFeaturePtr aCompos = std::dynamic_pointer_cast<ModelAPI_CompositeFeature>(theFeature);
 646   // composite feature must be executed after sub-features execution
 647   if (aCompos) {
 648     // number of subs can be changed in execution: like fillet
 649     int aNumSubs = aCompos->numberOfSubs();
 650     for(int a = 0; a < aNumSubs; a++) {
 651       FeaturePtr aSub = aCompos->subFeature(a);
 652       if (aSub.get() && aState == ModelAPI_StateDone) {
 653         if (isOlder(theFeature, aSub)) {
 654           aState = ModelAPI_StateMustBeUpdated;
 655         }
 656         // also check that all results of subs were updated: composite also depends on the results
 657         const std::list<std::shared_ptr<ModelAPI_Result> >& aResults = aSub->results();
 658         std::list<std::shared_ptr<ModelAPI_Result> >::const_iterator aResIter = aResults.begin();
 659         for(; aResIter != aResults.end(); aResIter++) {
 660           if (aResIter->get() && (*aResIter)->data()->isValid() && !(*aResIter)->isDisabled() &&
 661               isOlder(theFeature, *aResIter)) {
 662             aState = ModelAPI_StateMustBeUpdated;
 663           }
 664         }
 665       }
 666       if (a == aNumSubs - 1) // in case number of subs is changed, just recheck before end
 667         aNumSubs = aCompos->numberOfSubs();
 668     }
 669   }
 670
 671
 672   if (aState != ModelAPI_StateDone)
 673     theFeature->data()->execState(aState);
 674 }
 675
 676 void Model_Update::executeFeature(FeaturePtr theFeature)
 677 {
 678   // execute in try-catch to avoid internal problems of the feature
 679   ModelAPI_ExecState aState = ModelAPI_StateDone;
 680   theFeature->data()->execState(ModelAPI_StateDone);
 681   try {
 682     theFeature->execute();
 683     if (theFeature->data()->execState() != ModelAPI_StateDone) {
 684       aState = ModelAPI_StateExecFailed;
 685     } else {
 686       aState = ModelAPI_StateDone;
 687     }
 688   } catch(...) {
 689     aState = ModelAPI_StateExecFailed;
 690     Events_Error::send(
 691       "Feature " + theFeature->getKind() + " has failed during the execution");
 692   }
 693   // The macro feature has to be deleted in any case even its execution is failed
 694   myWaitForFinish.insert(theFeature);
 695   if (aState != ModelAPI_StateDone) {
 696     theFeature->eraseResults();
 697   }
 698   theFeature->data()->setUpdateID(ModelAPI_Session::get()->transactionID());
 699   redisplayWithResults(theFeature, aState);
 700 }
 701
 702 void Model_Update::updateStability(void* theSender)
 703 {
 704   if (theSender) {
 705     bool added = false; // object may be was crated
 706     ModelAPI_Object* aSender = static_cast<ModelAPI_Object*>(theSender);
 707     if (aSender && aSender->document()) {
 708       FeaturePtr aFeatureSender =
 709         std::dynamic_pointer_cast<ModelAPI_Feature>(aSender->data()->owner());
 710       if (aFeatureSender.get()) {
 711         Model_Objects* aDocObjects =
 712           std::dynamic_pointer_cast<Model_Document>(aSender->document())->objects();
 713         if (aDocObjects) {
 714           //aDocObjects->synchronizeBackRefs();
 715           // remove or add all concealment refs from this feature
 716           std::list<std::pair<std::string, std::list<ObjectPtr> > > aRefs;
 717           aSender->data()->referencesToObjects(aRefs);
 718           std::list<std::pair<std::string, std::list<ObjectPtr> > >::iterator aRefIt = aRefs.begin();
 719           for(; aRefIt != aRefs.end(); aRefIt++) {
 720             std::list<ObjectPtr>& aRefFeaturesList = aRefIt->second;
 721             std::list<ObjectPtr>::iterator aReferenced = aRefFeaturesList.begin();
 722             for(; aReferenced != aRefFeaturesList.end(); aReferenced++) {
 723                // stability is only on results: feature to feature reference mean nested
 724               // features, that will remove nesting references
 725               if (aReferenced->get() && (*aReferenced)->data()->isValid() &&
 726                 (*aReferenced)->groupName() != ModelAPI_Feature::group()) {
 727                 std::shared_ptr<Model_Data> aData =
 728                   std::dynamic_pointer_cast<Model_Data>((*aReferenced)->data());
 729                 if (aFeatureSender->isStable()) {
 730                   aData->addBackReference(aFeatureSender, aRefIt->first);
 731                 } else {
 732                   aData->removeBackReference(aFeatureSender, aRefIt->first);
 733                   added = true; // remove of concealment may be caused creation of some result
 734                 }
 735               }
 736             }
 737           }
 738         }
 739       }
 740     }
 741     if (added) {
 742       static Events_Loop* aLoop = Events_Loop::loop();
 743       static Events_ID kEventCreated = aLoop->eventByName(EVENT_OBJECT_CREATED);
 744       aLoop->flush(kEventCreated);
 745     }
 746   }
 747 }
 748
 749 ///////////////// Updated items iterator ////////////////////////
 750 Model_Update::IterationItem::IterationItem(std::shared_ptr<ModelAPI_CompositeFeature> theFeature)
 751 {
 752   myBreaked = false;
 753   myIsVirtual = false;
 754   myMain = theFeature;
 755   myObjects = NULL;
 756   if (!myMain.get() && ModelAPI_Session::get()->hasModuleDocument()) { // no document => nothing to do
 757     DocumentPtr aRootDoc = ModelAPI_Session::get()->moduleDocument();
 758     myObjects = std::dynamic_pointer_cast<Model_Document>(aRootDoc)->objects();
 759   }
 760   mySkipNext = false;
 761 }
 762
 763 void Model_Update::IterationItem::next()
 764 {
 765   if (mySkipNext) { // ignore one next
 766     mySkipNext = false;
 767     return;
 768   }
 769   if (!myBreaked) {
 770     if (myMain.get()) {
 771       myIndex++;
 772       int aNumSubs = myMain->numberOfSubs();
 773       if (myIndex == aNumSubs)
 774         return;
 775       // skip sub-objects, that are subs not only for this: sketch elements relatively to Part
 776       for(FeaturePtr aSub = myMain->subFeature(myIndex); aSub.get();
 777           aSub = myMain->subFeature(myIndex)) {
 778         aSub = myMain->subFeature(myIndex);
 779         CompositeFeaturePtr anOwner = ModelAPI_Tools::compositeOwner(aSub);
 780         if (!anOwner.get() || anOwner == myMain) {
 781           break;
 782         }
 783         myIndex++;
 784         if (myIndex == aNumSubs)
 785           break;
 786       }
 787     } else if (mySub.get()) {
 788       while(mySub.get()) {
 789         mySub = myObjects->nextFeature(mySub);
 790         CompositeFeaturePtr anOwner = ModelAPI_Tools::compositeOwner(mySub);
 791         // skip sub-objects, that are subs not only for this: sketch elements relatively to PartSet
 792         if (!anOwner.get()) {
 793           break;
 794         }
 795       }
 796     }
 797   }
 798 }
 799
 800 bool Model_Update::IterationItem::more()
 801 {
 802   if (myBreaked)
 803     return false;
 804   if (myMain.get())
 805     return myIndex < myMain->numberOfSubs();
 806   return mySub.get() != NULL;
 807 }
 808
 809 FeaturePtr Model_Update::IterationItem::current()
 810 {
 811   if (myMain.get())
 812     return myMain->subFeature(myIndex);
 813   return mySub;
 814 }
 815
 816 void Model_Update::IterationItem::setBreaked()
 817 {
 818   if (!myIsVirtual)
 819     myBreaked = true;
 820 }
 821
 822 void Model_Update::IterationItem::startIteration(const bool theVirtual)
 823 {
 824   myIsVirtual = theVirtual;
 825   if (myMain.get()) {
 826     myIndex = 0;
 827   } else if (myObjects) {
 828     mySub = myObjects->firstFeature();
 829   }
 830 }
 831
 832 bool Model_Update::IterationItem::isIterated(FeaturePtr theFeature)
 833 {
 834   if (myMain.get()) {
 835     if (myMain->isSub(theFeature)) {
 836       CompositeFeaturePtr anOwner = ModelAPI_Tools::compositeOwner(theFeature);
 837       if (!anOwner.get() || anOwner == myMain)
 838         return true;
 839     }
 840     return false;
 841   }
 842   // for the root document just check that this feature in this document and it is not sub
 843   return myObjects->owner() == theFeature->document() &&
 844          !ModelAPI_Tools::compositeOwner(theFeature).get();
 845 }
 846
 847 bool Model_Update::IterationItem::isEarlierThanCurrent(FeaturePtr theFeature)
 848 {
 849   if (myMain.get()) {
 850     for(int a = 0; a < myIndex; a++) {
 851       if (myMain->subFeature(a) == theFeature)
 852         return true;
 853     }
 854   } else {
 855     return !mySub.get() && !myObjects->isLater(theFeature, mySub);
 856   }
 857   return false;
 858 }
 859
 860 void Model_Update::IterationItem::setCurrentBefore(FeaturePtr theFeature)
 861 {
 862   if (myMain.get()) {
 863     for(int a = 0; a < myIndex; a++) {
 864       if (myMain->subFeature(a) == theFeature) {
 865         myIndex = a;
 866         break;
 867       }
 868     }
 869   } else {
 870     mySub = theFeature;
 871   }
 872   mySkipNext = true;
 873 }