src/Model/Model_AttributeSelection.cpp

   1 // Copyright (C) 2014-20xx CEA/DEN, EDF R&D
   2
   3 // File:        Model_AttributeSelection.cpp
   4 // Created:     2 Oct 2014
   5 // Author:      Mikhail PONIKAROV
   6
   7 #include "Model_AttributeSelection.h"
   8 #include "Model_Application.h"
   9 #include "Model_Events.h"
  10 #include "Model_Data.h"
  11 #include "Model_Document.h"
  12 #include "Model_SelectionNaming.h"
  13 #include <ModelAPI_Feature.h>
  14 #include <ModelAPI_ResultBody.h>
  15 #include <ModelAPI_ResultConstruction.h>
  16 #include <ModelAPI_ResultPart.h>
  17 #include <ModelAPI_CompositeFeature.h>
  18 #include <ModelAPI_Tools.h>
  19 #include <GeomAPI_Shape.h>
  20 #include <GeomAPI_PlanarEdges.h>
  21 #include <Events_InfoMessage.h>
  22
  23 #include <TNaming_Selector.hxx>
  24 #include <TNaming_NamedShape.hxx>
  25 #include <TNaming_Tool.hxx>
  26 #include <TNaming_Builder.hxx>
  27 #include <TNaming_Localizer.hxx>
  28 #include <TopoDS_Shape.hxx>
  29 #include <TopoDS_Compound.hxx>
  30 #include <TDataStd_IntPackedMap.hxx>
  31 #include <TDataStd_Integer.hxx>
  32 #include <TDataStd_UAttribute.hxx>
  33 #include <TDataStd_Name.hxx>
  34 #include <TopTools_MapOfShape.hxx>
  35 #include <TopTools_IndexedMapOfShape.hxx>
  36 #include <TopTools_MapIteratorOfMapOfShape.hxx>
  37 #include <TopTools_ListOfShape.hxx>
  38 #include <NCollection_DataMap.hxx>
  39 #include <TopExp_Explorer.hxx>
  40 #include <TDF_LabelMap.hxx>
  41 #include <BRep_Tool.hxx>
  42 #include <BRep_Builder.hxx>
  43 #include <TopoDS_Edge.hxx>
  44 #include <TopoDS.hxx>
  45 #include <TopExp.hxx>
  46 #include <TColStd_MapOfTransient.hxx>
  47 #include <TopTools_IndexedDataMapOfShapeListOfShape.hxx>
  48 #include <TopTools_ListIteratorOfListOfShape.hxx>
  49 #include <TColStd_MapIteratorOfPackedMapOfInteger.hxx>
  50 #include <gp_Pnt.hxx>
  51 #include <Precision.hxx>
  52 #include <TDF_ChildIterator.hxx>
  53 #include <TDF_ChildIDIterator.hxx>
  54 #include <TDataStd_Name.hxx>
  55 #include <TopAbs_ShapeEnum.hxx>
  56 #include <TopoDS_Iterator.hxx>
  57 #include <TNaming_Iterator.hxx>
  58 #include <BRep_Builder.hxx>
  59 #include <ModelAPI_Session.h>
  60
  61 using namespace std;
  62 //#define DEB_NAMING 1
  63 #ifdef DEB_NAMING
  64 #include <BRepTools.hxx>
  65 #endif
  66 /// added to the index in the packed map to signalize that the vertex of edge is selected
  67 /// (multiplied by the index of the edge)
  68 static const int kSTART_VERTEX_DELTA = 1000000;
  69 // identifier that there is simple reference: selection equals to context
  70 Standard_GUID kSIMPLE_REF_ID("635eacb2-a1d6-4dec-8348-471fae17cb29");
  71 // simple reference in the construction
  72 Standard_GUID kCONSTUCTION_SIMPLE_REF_ID("635eacb2-a1d6-4dec-8348-471fae17cb28");
  73 // reference to Part sub-object
  74 Standard_GUID kPART_REF_ID("635eacb2-a1d6-4dec-8348-471fae17cb27");
  75 // selection is invalid after recomputation
  76 Standard_GUID kINVALID_SELECTION("bce47fd7-80fa-4462-9d63-2f58acddd49d");
  77
  78 // on this label is stored:
  79 // TNaming_NamedShape - selected shape
  80 // TNaming_Naming - topological selection information (for the body)
  81 // TDataStd_IntPackedMap - indexes of edges in composite element (for construction)
  82 // TDataStd_Integer - type of the selected shape (for construction)
  83 // TDF_Reference - from ReferenceAttribute, the context
  84 void Model_AttributeSelection::setValue(const ResultPtr& theContext,
  85   const std::shared_ptr<GeomAPI_Shape>& theSubShape, const bool theTemporarily)
  86 {
  87   if (theTemporarily) { // just keep the stored without DF update
  88     myTmpContext = theContext;
  89     myTmpSubShape = theSubShape;
  90     owner()->data()->sendAttributeUpdated(this);
  91     return;
  92   } else {
  93     myTmpContext.reset();
  94     myTmpSubShape.reset();
  95   }
  96
  97   const std::shared_ptr<GeomAPI_Shape>& anOldShape = value();
  98   bool isOldContext = theContext == myRef.value();
  99   bool isOldShape = isOldContext &&
 100     (theSubShape == anOldShape || (theSubShape && anOldShape && theSubShape->isEqual(anOldShape)));
 101   if (isOldShape) return; // shape is the same, so context is also unchanged
 102   // update the referenced object if needed
 103   if (!isOldContext) {
 104       myRef.setValue(theContext);
 105   }
 106
 107   // do noth use naming if selected shape is result shape itself, but not sub-shape
 108   TDF_Label aSelLab = selectionLabel();
 109   aSelLab.ForgetAttribute(kSIMPLE_REF_ID);
 110   aSelLab.ForgetAttribute(kCONSTUCTION_SIMPLE_REF_ID);
 111   aSelLab.ForgetAttribute(kINVALID_SELECTION);
 112
 113   bool isDegeneratedEdge = false;
 114   // do not use the degenerated edge as a shape, a null context and shape is used in the case
 115   if (theSubShape.get() && !theSubShape->isNull() && theSubShape->isEdge()) {
 116     const TopoDS_Shape& aSubShape = theSubShape->impl<TopoDS_Shape>();
 117     if (aSubShape.ShapeType() == TopAbs_EDGE)
 118       isDegeneratedEdge = BRep_Tool::Degenerated(TopoDS::Edge(aSubShape)) == Standard_True;
 119   }
 120   if (!theContext.get() || isDegeneratedEdge) {
 121     // to keep the reference attribute label
 122     TDF_Label aRefLab = myRef.myRef->Label();
 123     aSelLab.ForgetAllAttributes(true);
 124     myRef.myRef = TDF_Reference::Set(aSelLab.Father(), aSelLab.Father());
 125     return;
 126   }
 127   if (theContext->groupName() == ModelAPI_ResultBody::group()) {
 128     // do not select the whole shape for body:it is already must be in the data framework
 129     // equal and null selected objects mean the same: object is equal to context,
 130     if (theContext->shape().get() &&
 131         (theContext->shape()->isEqual(theSubShape) || !theSubShape.get())) {
 132       aSelLab.ForgetAllAttributes(true);
 133       TDataStd_UAttribute::Set(aSelLab, kSIMPLE_REF_ID);
 134     } else {
 135       selectBody(theContext, theSubShape);
 136     }
 137   } else if (theContext->groupName() == ModelAPI_ResultConstruction::group()) {
 138     if (!theSubShape.get()) {
 139       // to sub, so the whole result is selected
 140       aSelLab.ForgetAllAttributes(true);
 141       TDataStd_UAttribute::Set(aSelLab, kCONSTUCTION_SIMPLE_REF_ID);
 142       ResultConstructionPtr aConstruction =
 143         std::dynamic_pointer_cast<ModelAPI_ResultConstruction>(theContext);
 144       if (aConstruction->isInfinite()) {
 145         // For correct naming selection, put the shape into the naming structure.
 146         // It seems sub-shapes are not needed: only this shape is (and can be ) selected.
 147         TNaming_Builder aBuilder(aSelLab);
 148         aBuilder.Generated(theContext->shape()->impl<TopoDS_Shape>());
 149         std::shared_ptr<Model_Document> aMyDoc =
 150           std::dynamic_pointer_cast<Model_Document>(owner()->document());
 151         std::string aName = contextName(theContext);
 152         // for selection in different document, add the document name
 153         aMyDoc->addNamingName(aSelLab, aName);
 154         TDataStd_Name::Set(aSelLab, aName.c_str());
 155       } else {  // for sketch the naming is needed in DS
 156         BRep_Builder aCompoundBuilder;
 157         TopoDS_Compound aComp;
 158         aCompoundBuilder.MakeCompound(aComp);
 159         for(int a = 0; a < aConstruction->facesNum(); a++) {
 160           TopoDS_Shape aFace = aConstruction->face(a)->impl<TopoDS_Shape>();
 161           aCompoundBuilder.Add(aComp, aFace);
 162         }
 163         std::shared_ptr<GeomAPI_Shape> aShape(new GeomAPI_Shape);
 164         aShape->setImpl<TopoDS_Shape>(new TopoDS_Shape(aComp));
 165         selectConstruction(theContext, aShape);
 166       }
 167     } else {
 168       selectConstruction(theContext, theSubShape);
 169     }
 170   } else if (theContext->groupName() == ModelAPI_ResultPart::group()) {
 171     aSelLab.ForgetAllAttributes(true);
 172     TDataStd_UAttribute::Set(aSelLab, kPART_REF_ID);
 173     selectPart(theContext, theSubShape);
 174   }
 175   //the attribute initialized state should be changed by sendAttributeUpdated only
 176   //myIsInitialized = true;
 177
 178   owner()->data()->sendAttributeUpdated(this);
 179 }
 180
 181 std::shared_ptr<GeomAPI_Shape> Model_AttributeSelection::value()
 182 {
 183   GeomShapePtr aResult;
 184   if (myTmpContext.get() || myTmpSubShape.get()) {
 185     ResultConstructionPtr aResulConstruction = std::dynamic_pointer_cast<ModelAPI_ResultConstruction>(myTmpContext);
 186     if(aResulConstruction.get()) {
 187       // it is just reference to construction.
 188       return myTmpSubShape;
 189     }
 190     return myTmpSubShape.get() ? myTmpSubShape : myTmpContext->shape();
 191   }
 192
 193   TDF_Label aSelLab = selectionLabel();
 194   if (aSelLab.IsAttribute(kINVALID_SELECTION))
 195     return aResult;
 196
 197   if (myRef.isInitialized()) {
 198     if (aSelLab.IsAttribute(kSIMPLE_REF_ID)) { // it is just reference to shape, not sub-shape
 199       ResultPtr aContext = context();
 200       if (!aContext.get())
 201         return aResult; // empty result
 202       return aContext->shape();
 203     }
 204     if (aSelLab.IsAttribute(kCONSTUCTION_SIMPLE_REF_ID)) { // it is just reference to construction, nothing is in value
 205         return aResult; // empty result
 206     }
 207     if (aSelLab.IsAttribute(kPART_REF_ID)) {
 208       ResultPartPtr aPart = std::dynamic_pointer_cast<ModelAPI_ResultPart>(context());
 209       if (!aPart.get() || !aPart->isActivated())
 210         return std::shared_ptr<GeomAPI_Shape>(); // postponed naming needed
 211       Handle(TDataStd_Integer) anIndex;
 212       if (selectionLabel().FindAttribute(TDataStd_Integer::GetID(), anIndex)) {
 213         if (anIndex->Get()) { // special selection attribute was created, use it
 214           return aPart->selectionValue(anIndex->Get());
 215         } else { // face with name is already in the data model, so try to take it by name
 216           Handle(TDataStd_Name) aName;
 217           if (selectionLabel().FindAttribute(TDataStd_Name::GetID(), aName)) {
 218             std::string aSubShapeName(TCollection_AsciiString(aName->Get()).ToCString());
 219             std::size_t aPartEnd = aSubShapeName.find('/');
 220             if (aPartEnd != string::npos && aPartEnd != aSubShapeName.rfind('/')) {
 221               string aNameInPart = aSubShapeName.substr(aPartEnd + 1);
 222               int anIndex;
 223               std::string aType; // to reuse already existing selection the type is not needed
 224               return aPart->shapeInPart(aNameInPart, aType, anIndex);
 225             }
 226           }
 227         }
 228       }
 229     }
 230
 231     Handle(TNaming_NamedShape) aSelection;
 232     if (selectionLabel().FindAttribute(TNaming_NamedShape::GetID(), aSelection)) {
 233       TopoDS_Shape aSelShape = aSelection->Get();
 234       aResult = std::shared_ptr<GeomAPI_Shape>(new GeomAPI_Shape);
 235       aResult->setImpl(new TopoDS_Shape(aSelShape));
 236     } else { // for simple construction element: just shape of this construction element
 237       ResultConstructionPtr aConstr =
 238         std::dynamic_pointer_cast<ModelAPI_ResultConstruction>(context());
 239       if (aConstr) {
 240         return aConstr->shape();
 241       }
 242     }
 243   }
 244   return aResult;
 245 }
 246
 247 bool Model_AttributeSelection::isInvalid()
 248 {
 249   return selectionLabel().IsAttribute(kINVALID_SELECTION) == Standard_True;
 250 }
 251
 252 bool Model_AttributeSelection::isInitialized()
 253 {
 254   if (ModelAPI_AttributeSelection::isInitialized()) { // additional checks if it is initialized
 255     std::shared_ptr<GeomAPI_Shape> aResult;
 256     if (myRef.isInitialized()) {
 257       TDF_Label aSelLab = selectionLabel();
 258       if (aSelLab.IsAttribute(kSIMPLE_REF_ID)) { // it is just reference to shape, not sub-shape
 259         ResultPtr aContext = context();
 260         return aContext.get() != NULL;
 261       }
 262       if (aSelLab.IsAttribute(kCONSTUCTION_SIMPLE_REF_ID)) { // it is just reference to construction, nothing is in value
 263           return true;
 264       }
 265
 266       Handle(TNaming_NamedShape) aSelection;
 267       if (selectionLabel().FindAttribute(TNaming_NamedShape::GetID(), aSelection)) {
 268         return !aSelection->Get().IsNull();
 269       } else { // for simple construction element: just shape of this construction element
 270         ResultConstructionPtr aConstr =
 271           std::dynamic_pointer_cast<ModelAPI_ResultConstruction>(context());
 272         if (aConstr.get()) {
 273           return aConstr->shape().get() != NULL;
 274         }
 275       }
 276     }
 277   }
 278   return false;
 279 }
 280
 281 Model_AttributeSelection::Model_AttributeSelection(TDF_Label& theLabel)
 282   : myRef(theLabel)
 283 {
 284   myIsInitialized = myRef.isInitialized();
 285 }
 286
 287 void Model_AttributeSelection::setID(const std::string theID)
 288 {
 289   myRef.setID(theID);
 290   ModelAPI_AttributeSelection::setID(theID);
 291 }
 292
 293 ResultPtr Model_AttributeSelection::context() {
 294   if (myTmpContext.get() || myTmpSubShape.get()) {
 295     return myTmpContext;
 296   }
 297
 298   ResultPtr aResult = std::dynamic_pointer_cast<ModelAPI_Result>(myRef.value());
 299   // for parts there could be same-data result, so take the last enabled
 300   if (aResult.get() && aResult->groupName() == ModelAPI_ResultPart::group()) {
 301     int aSize = aResult->document()->size(ModelAPI_ResultPart::group());
 302     for(int a = aSize - 1; a >= 0; a--) {
 303       ObjectPtr aPart = aResult->document()->object(ModelAPI_ResultPart::group(), a);
 304       if (aPart.get() && aPart->data() == aResult->data()) {
 305         ResultPtr aPartResult = std::dynamic_pointer_cast<ModelAPI_Result>(aPart);
 306         FeaturePtr anOwnerFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(owner());
 307         // check that this result is not this-feature result (it is forbidden t oselect itself)
 308         if (anOwnerFeature.get() && anOwnerFeature->firstResult() != aPartResult) {
 309           return aPartResult;
 310         }
 311       }
 312     }
 313   }
 314   return aResult;
 315 }
 316
 317
 318 void Model_AttributeSelection::setObject(const std::shared_ptr<ModelAPI_Object>& theObject)
 319 {
 320   ModelAPI_AttributeSelection::setObject(theObject);
 321   myRef.setObject(theObject);
 322 }
 323
 324 TDF_LabelMap& Model_AttributeSelection::scope()
 325 {
 326   if (myScope.IsEmpty()) { // create a new scope if not yet done
 327     // gets all features with named shapes that are before this feature label (before in history)
 328     DocumentPtr aMyDoc = owner()->document();
 329     std::list<std::shared_ptr<ModelAPI_Feature> > allFeatures = aMyDoc->allFeatures();
 330     std::list<std::shared_ptr<ModelAPI_Feature> >::iterator aFIter = allFeatures.begin();
 331     bool aMePassed = false;
 332     CompositeFeaturePtr aComposite =
 333       std::dynamic_pointer_cast<ModelAPI_CompositeFeature>(owner());
 334     FeaturePtr aFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(owner());
 335     CompositeFeaturePtr aCompositeOwner, aCompositeOwnerOwner;
 336     if (aFeature.get()) {
 337       aCompositeOwner = ModelAPI_Tools::compositeOwner(aFeature);
 338       if (aCompositeOwner.get()) {
 339          aCompositeOwnerOwner = ModelAPI_Tools::compositeOwner(aCompositeOwner);
 340       }
 341     }
 342     // for group Scope is not limitet: this is always up to date objects
 343     bool isGroup = aFeature.get() && aFeature->getKind() == "Group";
 344     for(; aFIter != allFeatures.end(); aFIter++) {
 345       if (*aFIter == owner()) {  // the left features are created later (except subs of composite)
 346         aMePassed = true;
 347         continue;
 348       }
 349       if (isGroup) aMePassed = false;
 350       bool isInScope = !aMePassed;
 351       if (!isInScope && aComposite.get()) { // try to add sub-elements of composite if this is composite
 352         if (aComposite->isSub(*aFIter))
 353           isInScope = true;
 354       }
 355       // remove the composite-owner of this feature (sketch in extrusion-cut)
 356       if (isInScope && (aCompositeOwner == *aFIter || aCompositeOwnerOwner == *aFIter))
 357         isInScope = false;
 358
 359       if (isInScope && aFIter->get() && (*aFIter)->data()->isValid()) {
 360         TDF_Label aFeatureLab = std::dynamic_pointer_cast<Model_Data>(
 361           (*aFIter)->data())->label().Father();
 362         TDF_ChildIDIterator aNSIter(aFeatureLab, TNaming_NamedShape::GetID(), 1);
 363         for(; aNSIter.More(); aNSIter.Next()) {
 364           Handle(TNaming_NamedShape) aNS = Handle(TNaming_NamedShape)::DownCast(aNSIter.Value());
 365           if (!aNS.IsNull() && aNS->Evolution() != TNaming_SELECTED) {
 366             myScope.Add(aNS->Label());
 367           }
 368         }
 369       }
 370     }
 371   }
 372   return myScope;
 373 }
 374
 375 /// Sets the invalid flag if flag is false, or removes it if "true"
 376 /// Returns theFlag
 377 static bool setInvalidIfFalse(TDF_Label& theLab, const bool theFlag) {
 378   if (theFlag) {
 379     theLab.ForgetAttribute(kINVALID_SELECTION);
 380   } else {
 381     TDataStd_UAttribute::Set(theLab, kINVALID_SELECTION);
 382   }
 383   return theFlag;
 384 }
 385
 386 bool Model_AttributeSelection::update()
 387 {
 388   TDF_Label aSelLab = selectionLabel();
 389   ResultPtr aContext = context();
 390   if (!aContext.get())
 391     return setInvalidIfFalse(aSelLab, false);
 392   if (aSelLab.IsAttribute(kSIMPLE_REF_ID)) { // it is just reference to shape, not sub-shape
 393     return setInvalidIfFalse(aSelLab, aContext->shape() && !aContext->shape()->isNull());
 394   }
 395   if (aSelLab.IsAttribute(kCONSTUCTION_SIMPLE_REF_ID)) { // it is just reference to construction, not sub-shape
 396     // if there is a sketch, the sketch-naming must be updated
 397     ResultConstructionPtr aConstruction =
 398       std::dynamic_pointer_cast<ModelAPI_ResultConstruction>(aContext);
 399     if (!aConstruction->isInfinite()) {
 400       BRep_Builder aCompoundBuilder;
 401       TopoDS_Compound aComp;
 402       aCompoundBuilder.MakeCompound(aComp);
 403       for(int a = 0; a < aConstruction->facesNum(); a++) {
 404         TopoDS_Shape aFace = aConstruction->face(a)->impl<TopoDS_Shape>();
 405         aCompoundBuilder.Add(aComp, aFace);
 406       }
 407       std::shared_ptr<GeomAPI_Shape> aShape(new GeomAPI_Shape);
 408       aShape->setImpl<TopoDS_Shape>(new TopoDS_Shape(aComp));
 409       selectConstruction(aContext, aShape);
 410     } else {
 411       // For correct naming selection, put the shape into the naming structure.
 412       // It seems sub-shapes are not needed: only this shape is (and can be ) selected.
 413       TNaming_Builder aBuilder(aSelLab);
 414       aBuilder.Generated(aContext->shape()->impl<TopoDS_Shape>());
 415       std::shared_ptr<Model_Document> aMyDoc =
 416         std::dynamic_pointer_cast<Model_Document>(owner()->document());
 417       std::string aName = contextName(aContext);
 418       aMyDoc->addNamingName(aSelLab, aName);
 419       TDataStd_Name::Set(aSelLab, aName.c_str());
 420     }
 421     return setInvalidIfFalse(aSelLab, aContext->shape() && !aContext->shape()->isNull());
 422   }
 423
 424   if (aSelLab.IsAttribute(kPART_REF_ID)) { // it is reference to the part object
 425     std::shared_ptr<GeomAPI_Shape> aNoSelection;
 426     bool aResult = selectPart(aContext, aNoSelection, true);
 427     aResult = setInvalidIfFalse(aSelLab, aResult);
 428     if (aResult) {
 429       owner()->data()->sendAttributeUpdated(this);
 430     }
 431     return aResult;
 432   }
 433
 434   if (aContext->groupName() == ModelAPI_ResultBody::group()) {
 435     // body: just a named shape, use selection mechanism from OCCT
 436     TNaming_Selector aSelector(aSelLab);
 437     bool aResult = aSelector.Solve(scope()) == Standard_True;
 438     aResult = setInvalidIfFalse(aSelLab, aResult); // must be before sending of updated attribute (1556)
 439     owner()->data()->sendAttributeUpdated(this);
 440     return aResult;
 441   } else if (aContext->groupName() == ModelAPI_ResultConstruction::group()) {
 442     // construction: identification by the results indexes, recompute faces and
 443     // take the face that more close by the indexes
 444     ResultConstructionPtr aConstructionContext =
 445       std::dynamic_pointer_cast<ModelAPI_ResultConstruction>(aContext);
 446     FeaturePtr aContextFeature = aContext->document()->feature(aContext);
 447     // sketch sub-element
 448     if (aConstructionContext &&
 449         std::dynamic_pointer_cast<ModelAPI_CompositeFeature>(aContextFeature).get())
 450     {
 451       TDF_Label aLab = myRef.myRef->Label();
 452       // getting a type of selected shape
 453       Handle(TDataStd_Integer) aTypeAttr;
 454       if (!aLab.FindAttribute(TDataStd_Integer::GetID(), aTypeAttr)) {
 455         return setInvalidIfFalse(aSelLab, false);
 456       }
 457       TopAbs_ShapeEnum aShapeType = (TopAbs_ShapeEnum)(aTypeAttr->Get());
 458       // selected indexes will be needed in each "if"
 459       Handle(TDataStd_IntPackedMap) aSubIds;
 460       std::shared_ptr<GeomAPI_Shape> aNewSelected;
 461       bool aNoIndexes =
 462         !aLab.FindAttribute(TDataStd_IntPackedMap::GetID(), aSubIds) || aSubIds->Extent() == 0;
 463       // for now working only with composite features
 464       CompositeFeaturePtr aComposite =
 465         std::dynamic_pointer_cast<ModelAPI_CompositeFeature>(aContextFeature);
 466       if (!aComposite.get() || aComposite->numberOfSubs() == 0) {
 467         return setInvalidIfFalse(aSelLab, false);
 468       }
 469
 470       if (aShapeType == TopAbs_FACE || aShapeType == TopAbs_WIRE) { // compound is for the whole sketch selection
 471         // If this is a wire with plane defined then it is a sketch-like object
 472         if (!aConstructionContext->facesNum()) // no faces, update can not work correctly
 473           return setInvalidIfFalse(aSelLab, false);
 474         // if there is no edges indexes, any face can be used: take the first
 475         std::shared_ptr<GeomAPI_Shape> aNewSelected;
 476         if (aNoIndexes) {
 477           aNewSelected = aConstructionContext->face(0);
 478         } else { // searching for most looks-like initial face by the indexes
 479           // prepare edges of the current result for the fast searching
 480           NCollection_DataMap<Handle(Geom_Curve), int> allCurves; // curves and orientations of edges
 481           const int aSubNum = aComposite->numberOfSubs();
 482           for(int a = 0; a < aSubNum; a++) {
 483             int aSubID = aComposite->subFeatureId(a);
 484             if (aSubIds->Contains(aSubID)) {
 485               FeaturePtr aSub = aComposite->subFeature(a);
 486               const std::list<std::shared_ptr<ModelAPI_Result> >& aResults = aSub->results();
 487               std::list<std::shared_ptr<ModelAPI_Result> >::const_iterator aRes;
 488               for(aRes = aResults.cbegin(); aRes != aResults.cend(); aRes++) {
 489                 ResultConstructionPtr aConstr =
 490                   std::dynamic_pointer_cast<ModelAPI_ResultConstruction>(*aRes);
 491                 if (aConstr->shape() && aConstr->shape()->isEdge()) {
 492                   const TopoDS_Shape& aResShape = aConstr->shape()->impl<TopoDS_Shape>();
 493                   TopoDS_Edge anEdge = TopoDS::Edge(aResShape);
 494                   if (!anEdge.IsNull()) {
 495                     Standard_Real aFirst, aLast;
 496                     Handle(Geom_Curve) aCurve = BRep_Tool::Curve(anEdge, aFirst, aLast);
 497                     // searching for orientation information
 498                     int anOrient = 0;
 499                     Handle(TDataStd_Integer) anInt;
 500                     if (aSelLab.FindChild(aSubID).FindAttribute(TDataStd_Integer::GetID(), anInt)){
 501                       anOrient = anInt->Get();
 502                     }
 503                     allCurves.Bind(aCurve, anOrient);
 504                   }
 505                 }
 506               }
 507             }
 508           }
 509           aNewSelected = Model_SelectionNaming::findAppropriateFace(aContext, allCurves);
 510         }
 511         if (aNewSelected) { // store this new selection
 512           if (aShapeType == TopAbs_WIRE) { // just get a wire from face to have wire
 513             TopExp_Explorer aWireExp(aNewSelected->impl<TopoDS_Shape>(), TopAbs_WIRE);
 514             if (aWireExp.More()) {
 515               aNewSelected.reset(new GeomAPI_Shape);
 516               aNewSelected->setImpl<TopoDS_Shape>(new TopoDS_Shape(aWireExp.Current()));
 517             }
 518           }
 519           selectConstruction(aContext, aNewSelected);
 520           setInvalidIfFalse(aSelLab, true);
 521           owner()->data()->sendAttributeUpdated(this);
 522           return true;
 523         } else { // if the selection is not found, put the empty shape: it's better to have disappeared shape, than the old, the lost one
 524           TNaming_Builder anEmptyBuilder(selectionLabel());
 525           return setInvalidIfFalse(aSelLab, false);
 526         }
 527       } else if (aShapeType == TopAbs_EDGE) {
 528         // just reselect the edge by the id
 529         const int aSubNum = aComposite->numberOfSubs();
 530         for(int a = 0; a < aSubNum; a++) {
 531           // if aSubIds take any, the first appropriate
 532           if (aSubIds->IsEmpty() || aSubIds->Contains(aComposite->subFeatureId(a))) {
 533             // found the appropriate feature
 534             FeaturePtr aFeature = aComposite->subFeature(a);
 535             std::list<std::shared_ptr<ModelAPI_Result> >::const_iterator aResIter =
 536               aFeature->results().cbegin();
 537             for(;aResIter != aFeature->results().cend(); aResIter++) {
 538               ResultConstructionPtr aRes =
 539                 std::dynamic_pointer_cast<ModelAPI_ResultConstruction>(*aResIter);
 540               if (aRes && aRes->shape() && aRes->shape()->isEdge()) { // found!
 541                 selectConstruction(aContext, aRes->shape());
 542                 setInvalidIfFalse(aSelLab, true);
 543                 owner()->data()->sendAttributeUpdated(this);
 544                 return true;
 545               }
 546             }
 547           }
 548         }
 549       } else if (aShapeType == TopAbs_VERTEX) {
 550         // just reselect the vertex by the id of edge
 551         const int aSubNum = aComposite->numberOfSubs();
 552         for(int a = 0; a < aSubNum; a++) {
 553           // if aSubIds take any, the first appropriate
 554           int aFeatureID = aComposite->subFeatureId(a);
 555           if (aSubIds->IsEmpty() || aSubIds->Contains(aFeatureID) ||
 556             aSubIds->Contains(aFeatureID + kSTART_VERTEX_DELTA) ||
 557             aSubIds->Contains(aFeatureID + kSTART_VERTEX_DELTA * 2)) {
 558               // searching for deltas
 559               int aVertexNum = 0;
 560               if (aSubIds->Contains(aFeatureID + kSTART_VERTEX_DELTA)) aVertexNum = 1;
 561               else if (aSubIds->Contains(aFeatureID + kSTART_VERTEX_DELTA * 2)) aVertexNum = 2;
 562               // found the feature with appropriate edge
 563               FeaturePtr aFeature = aComposite->subFeature(a);
 564               std::list<std::shared_ptr<ModelAPI_Result> >::const_iterator aResIter =
 565                 aFeature->results().cbegin();
 566               for(;aResIter != aFeature->results().cend(); aResIter++) {
 567                 ResultConstructionPtr aRes =
 568                   std::dynamic_pointer_cast<ModelAPI_ResultConstruction>(*aResIter);
 569                 if (aRes && aRes->shape()) {
 570                   if (aRes->shape()->isVertex() && aVertexNum == 0) { // found!
 571                     selectConstruction(aContext, aRes->shape());
 572                     setInvalidIfFalse(aSelLab, true);
 573                     owner()->data()->sendAttributeUpdated(this);
 574                     return true;
 575                   } else if (aRes->shape()->isEdge() && aVertexNum > 0) {
 576                     const TopoDS_Shape& anEdge = aRes->shape()->impl<TopoDS_Shape>();
 577                     int aVIndex = 1;
 578                     for(TopExp_Explorer aVExp(anEdge, TopAbs_VERTEX); aVExp.More(); aVExp.Next()) {
 579                       if (aVIndex == aVertexNum) { // found!
 580                         std::shared_ptr<GeomAPI_Shape> aVertex(new GeomAPI_Shape);
 581                         aVertex->setImpl(new TopoDS_Shape(aVExp.Current()));
 582                         selectConstruction(aContext, aVertex);
 583                         setInvalidIfFalse(aSelLab, true);
 584                         owner()->data()->sendAttributeUpdated(this);
 585                         return true;
 586                       }
 587                       aVIndex++;
 588                     }
 589                   }
 590                 }
 591               }
 592           }
 593         }
 594       }
 595     } else { // simple construction element: the selected is that needed
 596       selectConstruction(aContext, aContext->shape());
 597       setInvalidIfFalse(aSelLab, true);
 598       owner()->data()->sendAttributeUpdated(this);
 599       return true;
 600     }
 601   }
 602   return setInvalidIfFalse(aSelLab, false); // unknown case
 603 }
 604
 605
 606 void Model_AttributeSelection::selectBody(
 607   const ResultPtr& theContext, const std::shared_ptr<GeomAPI_Shape>& theSubShape)
 608 {
 609   // perform the selection
 610   TNaming_Selector aSel(selectionLabel());
 611   TopoDS_Shape aContext;
 612
 613   ResultBodyPtr aBody = std::dynamic_pointer_cast<ModelAPI_ResultBody>(myRef.value());
 614   if (aBody) {
 615     aContext = aBody->shape()->impl<TopoDS_Shape>();
 616   } else {
 617     ResultPtr aResult =
 618       std::dynamic_pointer_cast<ModelAPI_Result>(myRef.value());
 619     if (aResult) {
 620       aContext = aResult->shape()->impl<TopoDS_Shape>();
 621     } else {
 622       Events_InfoMessage("Model_AttributeSelection", "A result with shape is expected").send();
 623       return;
 624     }
 625   }
 626   TopoDS_Shape aNewShape = theSubShape ? theSubShape->impl<TopoDS_Shape>() : aContext;
 627   /// fix for issue 411: result modified shapes must not participate in this selection mechanism
 628   FeaturePtr aFeatureOwner = std::dynamic_pointer_cast<ModelAPI_Feature>(owner());
 629   if (aFeatureOwner.get())
 630     aFeatureOwner->eraseResults();
 631   if (!aContext.IsNull()) {
 632     aSel.Select(aNewShape, aContext);
 633   }
 634 }
 635
 636 /// registers the name of the shape in the label (theID == 0) of sub label (theID is a tag)
 637 /// if theID is zero,
 638 /// theOrientation is additional information about the positioning of edge relatively to face
 639 ///    it is stored in the integer attribute of the edge sub-label:
 640 ///    -1 is out, 1 is in, 0 is not needed
 641 static void registerSubShape(TDF_Label theMainLabel, TopoDS_Shape theShape,
 642   const int theID, const FeaturePtr& theContextFeature, std::shared_ptr<Model_Document> theDoc,
 643   std::string theAdditionalName, std::map<int, int>& theOrientations,
 644   std::map<int, std::string>& theSubNames, // name of sub-elements by ID to be exported instead of indexes
 645   Handle(TDataStd_IntPackedMap) theRefs = Handle(TDataStd_IntPackedMap)(),
 646   const int theOrientation = 0)
 647 {
 648   TDF_Label aLab = theID == 0 ? theMainLabel : theMainLabel.FindChild(theID);
 649   if (theOrientation != 0) { // store the orientation of edge relatively to face if needed
 650     TDataStd_Integer::Set(aLab, theOrientation);
 651   }
 652   TNaming_Builder aBuilder(aLab);
 653   aBuilder.Generated(theShape);
 654   std::stringstream aName;
 655   // add the part name if the selected object is located in other part
 656   if (theDoc != theContextFeature->document()) {
 657     if (theContextFeature->document() == ModelAPI_Session::get()->moduleDocument()) {
 658       aName<<theContextFeature->document()->kind()<<"/";
 659     } else {
 660       ResultPtr aDocRes = ModelAPI_Tools::findPartResult(
 661         ModelAPI_Session::get()->moduleDocument(), theContextFeature->document());
 662       if (aDocRes.get()) {
 663         aName<<aDocRes->data()->name()<<"/";
 664       }
 665     }
 666   }
 667   aName<<theContextFeature->name();
 668   if (theShape.ShapeType() != TopAbs_COMPOUND) { // compound means the whole result for construction
 669     aName<<"/";
 670     if (!theAdditionalName.empty())
 671       aName<<theAdditionalName<<"/";
 672     if (theShape.ShapeType() == TopAbs_FACE) aName<<"Face";
 673     else if (theShape.ShapeType() == TopAbs_WIRE) aName<<"Wire";
 674     else if (theShape.ShapeType() == TopAbs_EDGE) aName<<"Edge";
 675     else if (theShape.ShapeType() == TopAbs_VERTEX) aName<<"Vertex";
 676
 677     if (theRefs.IsNull()) {
 678       aName<<theID;
 679       if (theOrientation == 1)
 680         aName<<"f";
 681       else if (theOrientation == -1)
 682         aName<<"r";
 683     } else { // make a composite name from all sub-elements indexes: "1_2_3_4"
 684       TColStd_MapIteratorOfPackedMapOfInteger aRef(theRefs->GetMap());
 685       for(; aRef.More(); aRef.Next()) {
 686         aName<<"-"<<theSubNames[aRef.Key()];
 687         if (theOrientations.find(aRef.Key()) != theOrientations.end()) {
 688           if (theOrientations[aRef.Key()] == 1)
 689             aName<<"f";
 690           else if (theOrientations[aRef.Key()] == -1)
 691             aName<<"r";
 692         }
 693       }
 694     }
 695   }
 696
 697   theDoc->addNamingName(aLab, aName.str());
 698   TDataStd_Name::Set(aLab, aName.str().c_str());
 699 }
 700
 701 void Model_AttributeSelection::selectConstruction(
 702   const ResultPtr& theContext, const std::shared_ptr<GeomAPI_Shape>& theSubShape)
 703 {
 704   std::shared_ptr<Model_Document> aMyDoc =
 705     std::dynamic_pointer_cast<Model_Document>(owner()->document());
 706   FeaturePtr aContextFeature = theContext->document()->feature(theContext);
 707   CompositeFeaturePtr aComposite =
 708     std::dynamic_pointer_cast<ModelAPI_CompositeFeature>(aContextFeature);
 709   const TopoDS_Shape& aSubShape = theSubShape->impl<TopoDS_Shape>();
 710   if (!aComposite || aComposite->numberOfSubs() == 0) {
 711     // saving of context is enough: result construction contains exactly the needed shape
 712     TNaming_Builder aBuilder(selectionLabel());
 713     aBuilder.Generated(aSubShape);
 714     std::string aName = contextName(theContext);
 715     aMyDoc->addNamingName(selectionLabel(), aName);
 716     TDataStd_Name::Set(selectionLabel(), aName.c_str());
 717     return;
 718   }
 719   std::shared_ptr<Model_Data> aData = std::dynamic_pointer_cast<Model_Data>(owner()->data());
 720   TDF_Label aLab = myRef.myRef->Label();
 721   // identify the results of sub-object of the composite by edges
 722   // save type of the selected shape in integer attribute
 723   TopAbs_ShapeEnum aShapeType = aSubShape.ShapeType();
 724   TDataStd_Integer::Set(aLab, (int)aShapeType);
 725   gp_Pnt aVertexPos;
 726   TColStd_MapOfTransient allCurves;
 727   if (aShapeType == TopAbs_VERTEX) { // compare positions
 728     aVertexPos = BRep_Tool::Pnt(TopoDS::Vertex(aSubShape));
 729   } else {
 730     for(TopExp_Explorer anEdgeExp(aSubShape, TopAbs_EDGE); anEdgeExp.More(); anEdgeExp.Next()) {
 731       TopoDS_Edge anEdge = TopoDS::Edge(anEdgeExp.Current());
 732       Standard_Real aFirst, aLast;
 733       Handle(Geom_Curve) aCurve = BRep_Tool::Curve(anEdge, aFirst, aLast);
 734       allCurves.Add(aCurve);
 735     }
 736   }
 737   // iterate and store the result ids of sub-elements and sub-elements to sub-labels
 738   Handle(TDataStd_IntPackedMap) aRefs = TDataStd_IntPackedMap::Set(aLab);
 739   std::map<int, int> anOrientations; //map from edges IDs to orientations of these edges in face
 740   std::map<int, std::string> aSubNames; //map from edges IDs to names of edges
 741   aRefs->Clear();
 742   const int aSubNum = aComposite->numberOfSubs();
 743   for(int a = 0; a < aSubNum; a++) {
 744     FeaturePtr aSub = aComposite->subFeature(a);
 745     const std::list<std::shared_ptr<ModelAPI_Result> >& aResults = aSub->results();
 746     std::list<std::shared_ptr<ModelAPI_Result> >::const_iterator aRes = aResults.cbegin();
 747     // there may be many shapes (circle and center): register if at least one is in selection
 748     for(; aRes != aResults.cend(); aRes++) {
 749       ResultConstructionPtr aConstr =
 750         std::dynamic_pointer_cast<ModelAPI_ResultConstruction>(*aRes);
 751       if (!aConstr->shape()) {
 752         continue;
 753       }
 754       if (aShapeType == TopAbs_VERTEX) {
 755         if (aConstr->shape()->isVertex()) { // compare vertices positions
 756           const TopoDS_Shape& aVertex = aConstr->shape()->impl<TopoDS_Shape>();
 757           gp_Pnt aPnt = BRep_Tool::Pnt(TopoDS::Vertex(aVertex));
 758           if (aPnt.IsEqual(aVertexPos, Precision::Confusion())) {
 759             aRefs->Add(aComposite->subFeatureId(a));
 760             aSubNames[aComposite->subFeatureId(a)] = Model_SelectionNaming::shortName(aConstr);
 761           }
 762         } else { // get first or last vertex of the edge: last is stored with additional delta
 763           const TopoDS_Shape& anEdge = aConstr->shape()->impl<TopoDS_Shape>();
 764           int aDelta = kSTART_VERTEX_DELTA;
 765           for(TopExp_Explorer aVExp(anEdge, TopAbs_VERTEX); aVExp.More(); aVExp.Next()) {
 766             gp_Pnt aPnt = BRep_Tool::Pnt(TopoDS::Vertex(aVExp.Current()));
 767             if (aPnt.IsEqual(aVertexPos, Precision::Confusion())) {
 768               aRefs->Add(aDelta + aComposite->subFeatureId(a));
 769               aSubNames[aDelta + aComposite->subFeatureId(a)] =
 770                 Model_SelectionNaming::shortName(aConstr, aDelta / kSTART_VERTEX_DELTA);
 771               break;
 772             }
 773             aDelta += kSTART_VERTEX_DELTA;
 774           }
 775         }
 776       } else {
 777         if (aConstr->shape()->isEdge()) {
 778           const TopoDS_Shape& aResShape = aConstr->shape()->impl<TopoDS_Shape>();
 779           TopoDS_Edge anEdge = TopoDS::Edge(aResShape);
 780           if (!anEdge.IsNull()) {
 781             Standard_Real aFirst, aLast;
 782             Handle(Geom_Curve) aCurve = BRep_Tool::Curve(anEdge, aFirst, aLast);
 783             if (allCurves.Contains(aCurve)) {
 784               int anID = aComposite->subFeatureId(a);
 785               aRefs->Add(anID);
 786               aSubNames[anID] = Model_SelectionNaming::shortName(aConstr);
 787               if (aShapeType != TopAbs_EDGE) { // face needs the sub-edges on sub-labels
 788                 // add edges to sub-label to support naming for edges selection
 789                 TopExp_Explorer anEdgeExp(aSubShape, TopAbs_EDGE);
 790                 for(; anEdgeExp.More(); anEdgeExp.Next()) {
 791                   TopoDS_Edge anEdge = TopoDS::Edge(anEdgeExp.Current());
 792                   Standard_Real aFirst, aLast;
 793                   Handle(Geom_Curve) aFaceCurve = BRep_Tool::Curve(anEdge, aFirst, aLast);
 794                   if (aFaceCurve == aCurve) {
 795                     int anOrient = Model_SelectionNaming::edgeOrientation(aSubShape, anEdge);
 796                     anOrientations[anID] = anOrient;
 797                     registerSubShape(
 798                       selectionLabel(), anEdge, anID, aContextFeature, aMyDoc, "", anOrientations,
 799                       aSubNames, Handle(TDataStd_IntPackedMap)(), anOrient);
 800                   }
 801                 }
 802               } else { // put vertices of the selected edge to sub-labels
 803                 // add edges to sub-label to support naming for edges selection
 804                 TopExp_Explorer anEdgeExp(aSubShape, TopAbs_VERTEX);
 805                 int aTagIndex = anID + kSTART_VERTEX_DELTA;
 806                 for(; anEdgeExp.More(); anEdgeExp.Next(), aTagIndex += kSTART_VERTEX_DELTA) {
 807                   TopoDS_Vertex aV = TopoDS::Vertex(anEdgeExp.Current());
 808
 809                   std::stringstream anAdditionalName;
 810                   registerSubShape(
 811                     selectionLabel(), aV, aTagIndex, aContextFeature, aMyDoc, "", anOrientations,
 812                     aSubNames);
 813                 }
 814               }
 815             }
 816           }
 817         }
 818       }
 819     }
 820   }
 821   // store the selected as primitive
 822   TNaming_Builder aBuilder(selectionLabel());
 823   aBuilder.Generated(aSubShape);
 824     registerSubShape(
 825       selectionLabel(), aSubShape, 0, aContextFeature, aMyDoc, "", anOrientations, aSubNames, aRefs);
 826 }
 827
 828 bool Model_AttributeSelection::selectPart(
 829   const ResultPtr& theContext, const std::shared_ptr<GeomAPI_Shape>& theSubShape,
 830   const bool theUpdate)
 831 {
 832   ResultPartPtr aPart = std::dynamic_pointer_cast<ModelAPI_ResultPart>(theContext);
 833   if (!aPart.get() || !aPart->isActivated())
 834     return true; // postponed naming
 835   if (theUpdate) {
 836     Handle(TDataStd_Integer) anIndex;
 837     if (selectionLabel().FindAttribute(TDataStd_Integer::GetID(), anIndex)) { // by internal selection
 838       if (anIndex->Get() > 0) {
 839         // update the selection by index
 840         return aPart->updateInPart(anIndex->Get());
 841       } else {
 842         return true; // nothing to do, referencing just by name
 843       }
 844     }
 845     return true; // nothing to do, referencing just by name
 846   }
 847   // store the shape (in case part is not loaded it should be useful
 848   TopoDS_Shape aShape;
 849   std::string aName = theContext->data()->name();
 850   if (!theSubShape.get() || theSubShape->isNull()) {// the whole part shape is selected
 851     aShape = theContext->shape()->impl<TopoDS_Shape>();
 852   } else {
 853     aShape = theSubShape->impl<TopoDS_Shape>();
 854     int anIndex;
 855     aName += "/" + aPart->nameInPart(theSubShape, anIndex);
 856     TDataStd_Integer::Set(selectionLabel(), anIndex);
 857   }
 858   TNaming_Builder aBuilder(selectionLabel());
 859   aBuilder.Select(aShape, aShape);
 860   // identify by name in the part
 861   TDataStd_Name::Set(selectionLabel(), aName.c_str());
 862   return !aName.empty();
 863 }
 864
 865 TDF_Label Model_AttributeSelection::selectionLabel()
 866 {
 867   return myRef.myRef->Label().FindChild(1);
 868 }
 869
 870 std::string Model_AttributeSelection::namingName(const std::string& theDefaultName)
 871 {
 872   std::string aName("");
 873   if(!this->isInitialized())
 874     return !theDefaultName.empty() ? theDefaultName : aName;
 875
 876   std::shared_ptr<GeomAPI_Shape> aSubSh = value();
 877   ResultPtr aCont = context();
 878
 879   Model_SelectionNaming aSelNaming(selectionLabel());
 880   return aSelNaming.namingName(aCont, aSubSh, theDefaultName);
 881 }
 882
 883 // type ::= COMP | COMS | SOLD | SHEL | FACE | WIRE | EDGE | VERT
 884 void Model_AttributeSelection::selectSubShape(
 885   const std::string& theType, const std::string& theSubShapeName)
 886 {
 887   if(theSubShapeName.empty() || theType.empty()) return;
 888
 889   // check this is Part-name: 2 delimiters in the name
 890   std::size_t aPartEnd = theSubShapeName.find('/');
 891   if (aPartEnd != string::npos && aPartEnd != theSubShapeName.rfind('/')) {
 892     std::string aPartName = theSubShapeName.substr(0, aPartEnd);
 893     ObjectPtr aFound = owner()->document()->objectByName(ModelAPI_ResultPart::group(), aPartName);
 894     if (aFound.get()) { // found such part, so asking it for the name
 895       ResultPartPtr aPart = std::dynamic_pointer_cast<ModelAPI_ResultPart>(aFound);
 896       string aNameInPart = theSubShapeName.substr(aPartEnd + 1);
 897       int anIndex;
 898       std::shared_ptr<GeomAPI_Shape> aSelected = aPart->shapeInPart(aNameInPart, theType, anIndex);
 899       if (aSelected.get()) {
 900         setValue(aPart, aSelected);
 901         TDataStd_Integer::Set(selectionLabel(), anIndex);
 902         return;
 903       }
 904     }
 905   }
 906
 907   Model_SelectionNaming aSelNaming(selectionLabel());
 908   std::shared_ptr<Model_Document> aDoc =
 909     std::dynamic_pointer_cast<Model_Document>(owner()->document());
 910   std::shared_ptr<GeomAPI_Shape> aShapeToBeSelected;
 911   ResultPtr aCont;
 912   if (aSelNaming.selectSubShape(theType, theSubShapeName, aDoc, aShapeToBeSelected, aCont)) {
 913     setValue(aCont, aShapeToBeSelected);
 914   }
 915 }
 916
 917 int Model_AttributeSelection::Id()
 918 {
 919   int anID = 0;
 920   std::shared_ptr<GeomAPI_Shape> aSelection = value();
 921   std::shared_ptr<GeomAPI_Shape> aContext = context()->shape();
 922   // support for compsolids:
 923   if (context().get() && ModelAPI_Tools::compSolidOwner(context()).get())
 924     aContext = ModelAPI_Tools::compSolidOwner(context())->shape();
 925
 926
 927   TopoDS_Shape aMainShape = aContext->impl<TopoDS_Shape>();
 928   const TopoDS_Shape& aSubShape = aSelection->impl<TopoDS_Shape>();
 929   // searching for the latest main shape
 930   if (aSelection && !aSelection->isNull() &&
 931     aContext   && !aContext->isNull())
 932   {
 933     std::shared_ptr<Model_Document> aDoc =
 934       std::dynamic_pointer_cast<Model_Document>(context()->document());
 935     if (aDoc.get()) {
 936       Handle(TNaming_NamedShape) aNS = TNaming_Tool::NamedShape(aMainShape, aDoc->generalLabel());
 937       if (!aNS.IsNull()) {
 938         aMainShape = TNaming_Tool::CurrentShape(aNS);
 939       }
 940     }
 941
 942     TopTools_IndexedMapOfShape aSubShapesMap;
 943     TopExp::MapShapes(aMainShape, aSubShapesMap);
 944     anID = aSubShapesMap.FindIndex(aSubShape);
 945   }
 946   return anID;
 947 }
 948
 949 void Model_AttributeSelection::setId(int theID)
 950 {
 951   const ResultPtr& aContext = context();
 952   std::shared_ptr<GeomAPI_Shape> aSelection;
 953
 954   std::shared_ptr<GeomAPI_Shape> aContextShape = aContext->shape();
 955   // support for compsolids:
 956   if (aContext.get() && ModelAPI_Tools::compSolidOwner(aContext).get())
 957     aContextShape = ModelAPI_Tools::compSolidOwner(aContext)->shape();
 958
 959   TopoDS_Shape aMainShape = aContextShape->impl<TopoDS_Shape>();
 960   // searching for the latest main shape
 961   if (theID > 0 &&
 962       aContextShape && !aContextShape->isNull())
 963   {
 964     std::shared_ptr<Model_Document> aDoc =
 965       std::dynamic_pointer_cast<Model_Document>(aContext->document());
 966     if (aDoc.get()) {
 967       Handle(TNaming_NamedShape) aNS = TNaming_Tool::NamedShape(aMainShape, aDoc->generalLabel());
 968       if (!aNS.IsNull()) {
 969         aMainShape = TNaming_Tool::CurrentShape(aNS);
 970       }
 971     }
 972
 973     TopTools_IndexedMapOfShape aSubShapesMap;
 974     TopExp::MapShapes(aMainShape, aSubShapesMap);
 975     const TopoDS_Shape& aSelShape = aSubShapesMap.FindKey(theID);
 976
 977     std::shared_ptr<GeomAPI_Shape> aResult(new GeomAPI_Shape);
 978     aResult->setImpl(new TopoDS_Shape(aSelShape));
 979
 980     aSelection = aResult;
 981   }
 982
 983   setValue(aContext, aSelection);
 984 }
 985
 986 std::string Model_AttributeSelection::contextName(const ResultPtr& theContext) const
 987 {
 988   std::string aResult;
 989   if (owner()->document() != theContext->document()) {
 990     if (theContext->document() == ModelAPI_Session::get()->moduleDocument()) {
 991       aResult = theContext->document()->kind() + "/";
 992     } else {
 993       ResultPtr aDocRes = ModelAPI_Tools::findPartResult(
 994         ModelAPI_Session::get()->moduleDocument(), theContext->document());
 995       if (aDocRes.get()) {
 996         aResult = aDocRes->data()->name() + "/";
 997       }
 998     }
 999   }
1000   aResult += theContext->data()->name();
1001   return aResult;
1002 }