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[modules/shaper.git] / src / ModelAPI / ModelAPI_Tools.cpp
1 // Copyright (C) 2014-20xx CEA/DEN, EDF R&D
2
3 // File:        ModelAPI_Tools.cpp
4 // Created:     06 Aug 2014
5 // Author:      Vitaly Smetannikov
6
7 #include "ModelAPI_Tools.h"
8 #include <ModelAPI_Session.h>
9 #include <ModelAPI_Document.h>
10 #include <ModelAPI_Object.h>
11 #include <ModelAPI_AttributeDouble.h>
12 #include <ModelAPI_ResultParameter.h>
13 #include <ModelAPI_ResultPart.h>
14 #include <ModelAPI_AttributeDocRef.h>
15 #include <ModelAPI_Validator.h>
16 #include <list>
17 #include <map>
18 #include <iostream>
19
20 #include <Events_Loop.h>
21 #include <ModelAPI_Events.h>
22
23 #define RECURSE_TOP_LEVEL 50
24
25 //#define DEBUG_REMOVE_FEATURES
26 //#define DEBUG_REMOVE_FEATURES_RECURSE
27 //#define DEBUG_CYCLING_1550
28
29 #ifdef DEBUG_REMOVE_FEATURES_RECURSE
30 #include <sstream>
31 std::string getFeatureInfo(FeaturePtr theFeature)
32 {
33   if (!theFeature.get())
34     return "";
35   //std::ostringstream aPtrStr;
36   //aPtrStr << "[" << theFeature.get() << "] ";
37   std::string aFeatureInfo = /*aPtrStr.str() + */theFeature->name();
38   CompositeFeaturePtr aComposite = ModelAPI_Tools::compositeOwner(theFeature);
39   if (aComposite.get()) {
40       aFeatureInfo = aFeatureInfo + "[in " + aComposite->name() + "]";
41   }
42   return aFeatureInfo;
43 }
44 #endif
45
46 #ifdef DEBUG_REMOVE_FEATURES
47 void printMapInfo(const std::map<FeaturePtr, std::set<FeaturePtr> >& theMainList,
48                   const std::string& thePrefix)
49 {
50   std::map<FeaturePtr, std::set<FeaturePtr> >::const_iterator aMainIt = theMainList.begin(),
51                                                               aMainLast = theMainList.end();
52   std::string anInfo;
53   for (; aMainIt != aMainLast; aMainIt++) {
54     FeaturePtr aMainListFeature = aMainIt->first;
55     std::set<FeaturePtr> aMainRefList = aMainIt->second;
56     std::set<FeaturePtr>::const_iterator anIt = aMainRefList.begin(), aLast = aMainRefList.end();
57     std::string aRefsInfo;
58     for (; anIt != aLast; anIt++) {
59       aRefsInfo += (*anIt)->name().c_str();
60       if (anIt != aLast)
61         aRefsInfo += ", ";
62     }
63     if (!aRefsInfo.empty()) {
64       anInfo = anInfo + aMainListFeature->name().c_str() + ": " + aRefsInfo + "\n";
65     }
66   }
67   std::cout << thePrefix.c_str() << " [feature: references to]: \n" << anInfo.c_str() << std::endl;
68 }
69
70 void printListInfo(const std::set<FeaturePtr>& theMainList,
71                   const std::string& thePrefix)
72 {
73   std::set<FeaturePtr>::const_iterator aMainIt = theMainList.begin(),
74                                        aMainLast = theMainList.end();
75   std::string anInfo;
76   for (; aMainIt != aMainLast; aMainIt++) {
77     FeaturePtr aRefFeature = *aMainIt;
78     anInfo += aRefFeature->name().c_str();
79     if (aMainIt != aMainLast)
80       anInfo += ", ";
81   }
82   std::cout << thePrefix.c_str() << ": " << anInfo.c_str() << std::endl;
83 }
84 #endif
85
86 namespace ModelAPI_Tools {
87
88 std::shared_ptr<GeomAPI_Shape> shape(const ResultPtr& theResult)
89 {
90   return theResult->shape();
91 }
92
93 void shapesOfType(const FeaturePtr& theFeature,
94                   const GeomAPI_Shape::ShapeType& theType,
95                   std::set<GeomShapePtr>& theShapes)
96 {
97   std::list<ResultPtr> aResults = theFeature->results();
98   std::list<ResultPtr>::const_iterator aRIter = aResults.cbegin();
99   for (; aRIter != aResults.cend(); aRIter++) {
100     ResultPtr aResult = *aRIter;
101     GeomShapePtr aShape = aResult->shape();
102     if (aShape.get() && aShape->shapeType() == theType)
103       theShapes.insert(aShape);
104   }
105 }
106
107 const char* toString(ModelAPI_ExecState theExecState)
108 {
109 #define TO_STRING(__NAME__) case __NAME__: return #__NAME__;
110   switch (theExecState) {
111   TO_STRING(ModelAPI_StateDone)
112   TO_STRING(ModelAPI_StateMustBeUpdated)
113   TO_STRING(ModelAPI_StateExecFailed)
114   TO_STRING(ModelAPI_StateInvalidArgument)
115   TO_STRING(ModelAPI_StateNothing)
116   default: return "Unknown ExecState.";
117   }
118 #undef TO_STRING
119 }
120
121 std::string getFeatureError(const FeaturePtr& theFeature)
122 {
123   std::string anError;
124   if (!theFeature.get() || !theFeature->data()->isValid() || theFeature->isAction())
125     return anError;
126
127   // to be removed later, this error should be got from the feature
128   if (theFeature->data()->execState() == ModelAPI_StateDone ||
129       theFeature->data()->execState() == ModelAPI_StateMustBeUpdated)
130     return anError;
131
132   // set error indication
133   anError = theFeature->error();
134   if (anError.empty()) {
135     bool isDone = ( theFeature->data()->execState() == ModelAPI_StateDone
136                  || theFeature->data()->execState() == ModelAPI_StateMustBeUpdated );
137     if (!isDone) {
138       anError = toString(theFeature->data()->execState());
139       // If the feature is Composite and error is StateInvalidArgument,
140       // error text should include error of first invalid sub-feature. Otherwise
141       // it is not clear what is the reason of the invalid argument.
142       if (theFeature->data()->execState() == ModelAPI_StateInvalidArgument) {
143         CompositeFeaturePtr aComposite =
144                     std::dynamic_pointer_cast<ModelAPI_CompositeFeature>(theFeature);
145         if (aComposite) {
146           for (int i = 0, aSize = aComposite->numberOfSubs(); i < aSize; i++) {
147             FeaturePtr aSubFeature = aComposite->subFeature(i);
148             std::string aSubFeatureError = getFeatureError(aSubFeature);
149             if (!aSubFeatureError.empty()) {
150               anError = anError + " in " + aSubFeature->getKind() + ".\n" + aSubFeatureError;
151               break;
152             }
153           }
154         }
155       }
156     }
157   }
158
159   return anError;
160 }
161
162 ObjectPtr objectByName(const DocumentPtr& theDocument, const std::string& theGroup,
163                        const std::string& theName)
164 {
165   for (int anIndex = 0; anIndex < theDocument->size(theGroup); ++anIndex) {
166     ObjectPtr anObject = theDocument->object(theGroup, anIndex);
167     if (anObject->data()->name() == theName)
168       return anObject;
169   }
170   // not found
171   return ObjectPtr();
172 }
173
174 bool findVariable(const DocumentPtr& theDocument, FeaturePtr theSearcher,
175                   const std::string& theName, double& outValue, ResultParameterPtr& theParam)
176 {
177   ObjectPtr aParamObj = objectByName(theDocument, ModelAPI_ResultParameter::group(), theName);
178   theParam = std::dynamic_pointer_cast<ModelAPI_ResultParameter>(aParamObj);
179   if (!theParam.get())
180     return false;
181   // avoid usage of parameters created later than the initial parameter
182   if (theSearcher.get() && theDocument->isLater(theDocument->feature(theParam), theSearcher))
183     return false;
184   AttributeDoublePtr aValueAttribute = theParam->data()->real(ModelAPI_ResultParameter::VALUE());
185   outValue = aValueAttribute->value();
186   return true;
187 }
188
189 bool findVariable(FeaturePtr theSearcher, const std::string& theName, double& outValue,
190                   ResultParameterPtr& theParam, const DocumentPtr& theDocument)
191 {
192   SessionPtr aSession = ModelAPI_Session::get();
193   std::list<DocumentPtr> aDocList;
194   DocumentPtr aDocument = theDocument.get() ? theDocument : aSession->activeDocument();
195   if (findVariable(aDocument, theSearcher, theName, outValue, theParam))
196     return true;
197   DocumentPtr aRootDocument = aSession->moduleDocument();
198   if (aDocument != aRootDocument) {
199     // any parameters in PartSet is okindependently on the Part position (issu #1504)
200     if (findVariable(aRootDocument, FeaturePtr(), theName, outValue, theParam))
201       return true;
202   }
203   return false;
204 }
205
206 ResultPtr findPartResult(const DocumentPtr& theMain, const DocumentPtr& theSub)
207 {
208   // to optimize and avoid of crash on partset document close
209   // (don't touch the sub-document structure)
210   if (theMain != theSub) {
211     for (int a = theMain->size(ModelAPI_ResultPart::group()) - 1; a >= 0; a--) {
212       ResultPartPtr aPart = std::dynamic_pointer_cast<ModelAPI_ResultPart>(
213           theMain->object(ModelAPI_ResultPart::group(), a));
214       if (aPart && aPart->data()->document(ModelAPI_ResultPart::DOC_REF())->value() == theSub) {
215         return aPart;
216       }
217     }
218   }
219   return ResultPtr();
220 }
221
222 FeaturePtr findPartFeature(const DocumentPtr& theMain, const DocumentPtr& theSub)
223 {
224   // to optimize and avoid of crash on partset document close
225   // (don't touch the sub-document structure)
226   if (theMain != theSub) {
227     for (int a = theMain->size(ModelAPI_Feature::group()) - 1; a >= 0; a--) {
228       FeaturePtr aPartFeat = std::dynamic_pointer_cast<ModelAPI_Feature>(
229           theMain->object(ModelAPI_Feature::group(), a));
230       if (aPartFeat.get()) {
231         const std::list<std::shared_ptr<ModelAPI_Result> >& aResList = aPartFeat->results();
232         std::list<std::shared_ptr<ModelAPI_Result> >::const_iterator aRes = aResList.begin();
233         for(; aRes != aResList.end(); aRes++) {
234           ResultPartPtr aPart = std::dynamic_pointer_cast<ModelAPI_ResultPart>(*aRes);
235           if (aPart.get()) {
236             if (aPart->isActivated() && aPart->partDoc() == theSub)
237               return aPartFeat;
238           } else break; // if the first is not Part, others are also not
239         }
240       }
241     }
242   }
243   return FeaturePtr();
244 }
245
246 CompositeFeaturePtr compositeOwner(const FeaturePtr& theFeature)
247 {
248   if (theFeature.get() && theFeature->data()->isValid()) {
249     const std::set<std::shared_ptr<ModelAPI_Attribute> >& aRefs = theFeature->data()->refsToMe();
250     std::set<std::shared_ptr<ModelAPI_Attribute> >::const_iterator aRefIter = aRefs.begin();
251     for(; aRefIter != aRefs.end(); aRefIter++) {
252       CompositeFeaturePtr aComp = std::dynamic_pointer_cast<ModelAPI_CompositeFeature>
253         ((*aRefIter)->owner());
254       if (aComp.get() && aComp->data()->isValid() && aComp->isSub(theFeature))
255         return aComp;
256     }
257   }
258   return CompositeFeaturePtr(); // not found
259 }
260
261 ResultCompSolidPtr compSolidOwner(const ResultPtr& theSub)
262 {
263   ResultBodyPtr aBody = std::dynamic_pointer_cast<ModelAPI_ResultBody>(theSub);
264   if (aBody.get()) {
265     FeaturePtr aFeatureOwner = aBody->document()->feature(aBody);
266     if (aFeatureOwner.get()) {
267       std::list<std::shared_ptr<ModelAPI_Result> >::const_iterator aResIter =
268         aFeatureOwner->results().cbegin();
269       for(; aResIter != aFeatureOwner->results().cend(); aResIter++) {
270         ResultCompSolidPtr aComp = std::dynamic_pointer_cast<ModelAPI_ResultCompSolid>(*aResIter);
271         if (aComp && aComp->isSub(aBody))
272           return aComp;
273       }
274     }
275   }
276   return ResultCompSolidPtr(); // not found
277 }
278
279 bool hasSubResults(const ResultPtr& theResult)
280 {
281   ResultCompSolidPtr aCompSolid = std::dynamic_pointer_cast<ModelAPI_ResultCompSolid>(theResult);
282   return aCompSolid.get() && aCompSolid->numberOfSubs() > 0;
283 }
284
285 void allResults(const FeaturePtr& theFeature, std::list<ResultPtr>& theResults)
286 {
287   if (!theFeature.get()) // safety: for empty feature no results
288     return;
289   const std::list<std::shared_ptr<ModelAPI_Result> >& aResults = theFeature->results();
290   std::list<std::shared_ptr<ModelAPI_Result> >::const_iterator aRIter = aResults.begin();
291   for (; aRIter != aResults.cend(); aRIter++) {
292     theResults.push_back(*aRIter);
293     // iterate sub-bodies of compsolid
294     ResultCompSolidPtr aComp = std::dynamic_pointer_cast<ModelAPI_ResultCompSolid>(*aRIter);
295     if (aComp.get()) {
296       int aNumSub = aComp->numberOfSubs();
297       for(int a = 0; a < aNumSub; a++) {
298         theResults.push_back(aComp->subResult(a));
299       }
300     }
301   }
302 }
303
304 //******************************************************************
305 bool allDocumentsActivated(std::string& theNotActivatedNames)
306 {
307   theNotActivatedNames = "";
308   bool anAllPartActivated = true;
309
310   DocumentPtr aRootDoc = ModelAPI_Session::get()->moduleDocument();
311   int aSize = aRootDoc->size(ModelAPI_ResultPart::group());
312   for (int i = 0; i < aSize; i++) {
313     ObjectPtr aObject = aRootDoc->object(ModelAPI_ResultPart::group(), i);
314     ResultPartPtr aPart = std::dynamic_pointer_cast<ModelAPI_ResultPart>(aObject);
315     if (!aPart->isActivated()) {
316       anAllPartActivated = false;
317       if (!theNotActivatedNames.empty())
318         theNotActivatedNames += ", ";
319       theNotActivatedNames += aObject->data()->name().c_str();
320     }
321   }
322   return anAllPartActivated;
323 }
324
325 bool removeFeaturesAndReferences(const std::set<FeaturePtr>& theFeatures,
326                                  const bool theFlushRedisplay,
327                                  const bool theUseComposite,
328                                  const bool theUseRecursion)
329 {
330 #ifdef DEBUG_REMOVE_FEATURES
331   printListInfo(theFeatures, "selection: ");
332 #endif
333
334   std::map<FeaturePtr, std::set<FeaturePtr> > aReferences;
335   ModelAPI_Tools::findAllReferences(theFeatures, aReferences, theUseComposite, theUseRecursion);
336 #ifdef DEBUG_REMOVE_FEATURES
337   printMapInfo(aReferences, "allDependencies: ");
338 #endif
339
340   std::set<FeaturePtr> aFeaturesRefsTo;
341   ModelAPI_Tools::findRefsToFeatures(theFeatures, aReferences, aFeaturesRefsTo);
342 #ifdef DEBUG_REMOVE_FEATURES
343   printListInfo(aFeaturesRefsTo, "references: ");
344 #endif
345
346   std::set<FeaturePtr> aFeatures = theFeatures;
347   if (!aFeaturesRefsTo.empty())
348     aFeatures.insert(aFeaturesRefsTo.begin(), aFeaturesRefsTo.end());
349 #ifdef DEBUG_REMOVE_FEATURES
350   printListInfo(aFeatures, "removeFeatures: ");
351 #endif
352
353   return ModelAPI_Tools::removeFeatures(aFeatures, false);
354 }
355
356 bool removeFeatures(const std::set<FeaturePtr>& theFeatures,
357                     const bool theFlushRedisplay)
358 {
359   bool isDone = false;
360   std::set<FeaturePtr>::const_iterator anIt = theFeatures.begin(),
361                                        aLast = theFeatures.end();
362   for (; anIt != aLast; anIt++) {
363     FeaturePtr aFeature = *anIt;
364     if (aFeature.get()) {
365       DocumentPtr aDoc = aFeature->document();
366       // flush REDISPLAY signal after remove feature
367       aDoc->removeFeature(aFeature);
368       isDone = true;
369     }
370   }
371   if (isDone && theFlushRedisplay) {
372     // the redisplay signal should be flushed in order to erase
373     // the feature presentation in the viewer
374     // if should be done after removeFeature() of document
375     Events_Loop::loop()->flush(Events_Loop::loop()->eventByName(EVENT_OBJECT_TO_REDISPLAY));
376   }
377   return true;
378 }
379
380 // Fills the references list by all references of the feature from the references map.
381 // This is a recusive method to find references by next found feature in the map of references.
382 // \param theFeature a feature to find references
383 // \param theReferencesMap a map of references
384 // \param theReferences an out container of references
385 void addRefsToFeature(const FeaturePtr& theFeature,
386                       const std::map<FeaturePtr, std::set<FeaturePtr> >& theReferencesMap,
387                       std::map<FeaturePtr, std::set<FeaturePtr> >& theProcessedReferences,
388                       int theRecLevel,
389                       std::set<FeaturePtr>& theReferences)
390 {
391   if (theRecLevel > RECURSE_TOP_LEVEL)
392     return;
393   theRecLevel++;
394
395   // if the feature is already processed, get the ready references from the map
396   if (theProcessedReferences.find(theFeature) != theProcessedReferences.end()) {
397     std::set<FeaturePtr> aReferences = theProcessedReferences.at(theFeature);
398     theReferences.insert(aReferences.begin(), aReferences.end());
399     return;
400   }
401
402   if (theReferencesMap.find(theFeature) == theReferencesMap.end())
403     return; // this feature is not in the selection list, so exists without references to it
404   std::set<FeaturePtr> aMainReferences = theReferencesMap.at(theFeature);
405
406   std::set<FeaturePtr>::const_iterator anIt = aMainReferences.begin(),
407                                        aLast = aMainReferences.end();
408 #ifdef DEBUG_REMOVE_FEATURES_RECURSE
409   std::string aSpacing;
410   for (int i = 0; i < theRecLevel; i++)
411     aSpacing.append(" ");
412 #endif
413
414   for (; anIt != aLast; anIt++) {
415     FeaturePtr aRefFeature = *anIt;
416 #ifdef DEBUG_REMOVE_FEATURES_RECURSE
417   std::cout << aSpacing << " Ref: " << getFeatureInfo(aRefFeature) << std::endl;
418 #endif
419     if (theReferences.find(aRefFeature) == theReferences.end())
420       theReferences.insert(aRefFeature);
421     addRefsToFeature(aRefFeature, theReferencesMap, theProcessedReferences,
422                      theRecLevel, theReferences);
423   }
424 }
425
426 // For each feature from the feature list it searches references to the feature and append them
427 // to the references map. This is a recusive method.
428 // \param theFeature a feature to find references
429 // \param theReferencesMap a map of references
430 // \param theReferences an out container of references
431 void findReferences(const std::set<FeaturePtr>& theFeatures,
432                     std::map<FeaturePtr, std::set<FeaturePtr> >& theReferences,
433                     const bool theUseComposite, const bool theUseRecursion, int theRecLevel)
434 {
435   if (theRecLevel > RECURSE_TOP_LEVEL)
436     return;
437   theRecLevel++;
438   std::set<FeaturePtr>::const_iterator anIt = theFeatures.begin(),
439                                         aLast = theFeatures.end();
440   for (; anIt != aLast; anIt++) {
441     FeaturePtr aFeature = *anIt;
442     if (aFeature.get() && theReferences.find(aFeature) == theReferences.end()) {
443       DocumentPtr aSelFeatureDoc = aFeature->document();
444       std::set<FeaturePtr> aSelRefFeatures;
445       aSelFeatureDoc->refsToFeature(aFeature, aSelRefFeatures, false/*do not emit signals*/);
446       if (theUseComposite) { // do not filter selection
447         theReferences[aFeature] = aSelRefFeatures;
448       }
449       else { // filter references to skip composition features of the current feature
450         std::set<FeaturePtr> aFilteredFeatures;
451         std::set<FeaturePtr>::const_iterator anIt = aSelRefFeatures.begin(),
452                                              aLast = aSelRefFeatures.end();
453         for (; anIt != aLast; anIt++) {
454           FeaturePtr aCFeature = *anIt;
455           CompositeFeaturePtr aComposite =
456             std::dynamic_pointer_cast<ModelAPI_CompositeFeature>(aCFeature);
457           if (aComposite.get() && aComposite->isSub(aFeature))
458             continue; /// composite of the current feature should be skipped
459           aFilteredFeatures.insert(aCFeature);
460         }
461         theReferences[aFeature] = aFilteredFeatures;
462       }
463       if (theUseRecursion) {
464 #ifdef DEBUG_CYCLING_1550
465         findReferences(aSelRefFeatures, theReferences, theUseComposite,
466                        theUseRecursion, theRecLevel);
467 #else
468         findReferences(theReferences[aFeature], theReferences, theUseComposite, theUseRecursion,
469                        theRecLevel);
470 #endif
471       }
472     }
473   }
474 }
475
476 void findAllReferences(const std::set<FeaturePtr>& theFeatures,
477                        std::map<FeaturePtr, std::set<FeaturePtr> >& theReferences,
478                        const bool theUseComposite,
479                        const bool theUseRecursion)
480 {
481   // For dependencies, find main_list:
482   // sk_1(ext_1, vertex_1)
483   // ext_1(bool_1, sk_3)
484   // vertex_1()
485   // sk_2(ext_2)
486   // ext_2(bool_2)
487   // sk_3()
488   // Information: bool_1 is not selected, ext_2(bool_2) exists
489   // find all referenced features
490   std::map<FeaturePtr, std::set<FeaturePtr> > aMainList;
491   int aRecLevel = 0;
492   findReferences(theFeatures, aMainList, theUseComposite, theUseRecursion, aRecLevel);
493
494 #ifdef DEBUG_REMOVE_FEATURES
495   printMapInfo(aMainList, "firstDependencies");
496 #endif
497   // find all dependencies for each object:
498   // sk_1(ext_1, vertex_1) + (sk_3, bool_1)
499   // ext_1(bool_1, sk_3)
500   // vertex_1()
501   // sk_2(ext_2) + (bool_1)
502   // ext_2(bool_1)
503   // sk_3()
504   std::map<FeaturePtr, std::set<FeaturePtr> >::const_iterator aMainIt = aMainList.begin(),
505                                                               aMainLast = aMainList.end();
506   for (; aMainIt != aMainLast; aMainIt++) {
507     FeaturePtr aMainListFeature = aMainIt->first;
508
509     //std::string aName = aMainListFeature->name();
510     std::set<FeaturePtr> aMainRefList = aMainIt->second;
511
512 #ifdef DEBUG_REMOVE_FEATURES_RECURSE
513     char aBuf[50];
514     int n = sprintf(aBuf, "%d", aMainRefList.size());
515     std::string aSize(aBuf);
516     std::cout << "_findAllReferences for the Feature: " << getFeatureInfo(aMainListFeature)
517               << ", references size = " << aSize << std::endl;
518 #endif
519     std::set<FeaturePtr>::const_iterator anIt = aMainRefList.begin(),
520                                          aLast = aMainRefList.end();
521     std::set<FeaturePtr> aResultRefList;
522     aResultRefList.insert(aMainRefList.begin(), aMainRefList.end());
523     for (; anIt != aLast; anIt++) {
524       FeaturePtr aFeature = *anIt;
525       int aRecLevel = 0;
526 #ifdef DEBUG_REMOVE_FEATURES_RECURSE
527       std::cout << " Ref: " << getFeatureInfo(aFeature) << std::endl;
528 #endif
529       aRecLevel++;
530       addRefsToFeature(aFeature, aMainList, theReferences,
531                        aRecLevel, aResultRefList/*aMainRefList*/);
532     }
533     theReferences[aMainListFeature] = aResultRefList;
534   }
535 #ifdef DEBUG_REMOVE_FEATURES_RECURSE
536     std::cout << std::endl;
537 #endif
538
539 #ifdef DEBUG_REMOVE_FEATURES
540   printMapInfo(theReferences, "allDependencies");
541 #endif
542 }
543
544 void findRefsToFeatures(const std::set<FeaturePtr>& theFeatures,
545                         const std::map<FeaturePtr, std::set<FeaturePtr> >& theReferences,
546                         std::set<FeaturePtr>& theFeaturesRefsTo)
547 {
548   std::set<FeaturePtr>::const_iterator anIt = theFeatures.begin(),
549                                        aLast = theFeatures.end();
550   for (; anIt != aLast; anIt++) {
551     FeaturePtr aFeature = *anIt;
552     if (theReferences.find(aFeature) == theReferences.end())
553       continue;
554     std::set<FeaturePtr> aRefList = theReferences.at(aFeature);
555     std::set<FeaturePtr>::const_iterator aRefIt = aRefList.begin(), aRefLast = aRefList.end();
556     for (; aRefIt != aRefLast; aRefIt++) {
557       FeaturePtr aRefFeature = *aRefIt;
558       CompositeFeaturePtr aComposite =
559         std::dynamic_pointer_cast<ModelAPI_CompositeFeature>(aRefFeature);
560       if (aComposite.get() && aComposite->isSub(aFeature))
561         continue; /// composite of the current feature should not be removed
562
563       if (theFeatures.find(aRefFeature) == theFeatures.end() && // it is not selected
564           theFeaturesRefsTo.find(aRefFeature) == theFeaturesRefsTo.end()) // it is not added
565         theFeaturesRefsTo.insert(aRefFeature);
566     }
567   }
568 }
569
570 void getConcealedResults(const FeaturePtr& theFeature,
571                          std::list<std::shared_ptr<ModelAPI_Result> >& theResults)
572 {
573   SessionPtr aSession = ModelAPI_Session::get();
574
575   std::list<std::pair<std::string, std::list<std::shared_ptr<ModelAPI_Object> > > > aRefs;
576   theFeature->data()->referencesToObjects(aRefs);
577   std::list<std::pair<std::string, std::list<ObjectPtr> > >::const_iterator
578                                                   anIt = aRefs.begin(), aLast = aRefs.end();
579   std::set<ResultPtr> alreadyThere; // to avoid duplications
580   for (; anIt != aLast; anIt++) {
581     if (!aSession->validators()->isConcealed(theFeature->getKind(), anIt->first))
582       continue; // use only concealed attributes
583     std::list<ObjectPtr> anObjects = (*anIt).second;
584     std::list<ObjectPtr>::const_iterator anOIt = anObjects.begin(), anOLast = anObjects.end();
585     for (; anOIt != anOLast; anOIt++) {
586       ResultPtr aResult = std::dynamic_pointer_cast<ModelAPI_Result>(*anOIt);
587       if (aResult && aResult->isConcealed()) {
588         if (alreadyThere.find(aResult) == alreadyThere.end()) // issue 1712, avoid duplicates
589           alreadyThere.insert(aResult);
590         else continue;
591         theResults.push_back(aResult);
592       }
593     }
594   }
595 }
596
597 } // namespace ModelAPI_Tools