src/Model/Model_AttributeSelection.cpp

   1 // Copyright (C) 2014-2017  CEA/DEN, EDF R&D
   2 //
   3 // This library is free software; you can redistribute it and/or
   4 // modify it under the terms of the GNU Lesser General Public
   5 // License as published by the Free Software Foundation; either
   6 // version 2.1 of the License, or (at your option) any later version.
   7 //
   8 // This library is distributed in the hope that it will be useful,
   9 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  10 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  11 // Lesser General Public License for more details.
  12 //
  13 // You should have received a copy of the GNU Lesser General Public
  14 // License along with this library; if not, write to the Free Software
  15 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  16 //
  17 // See http://www.salome-platform.org/ or
  18 // email : webmaster.salome@opencascade.com<mailto:webmaster.salome@opencascade.com>
  19 //
  20
  21 #include "Model_AttributeSelection.h"
  22 #include "Model_Application.h"
  23 #include "Model_Events.h"
  24 #include "Model_Data.h"
  25 #include "Model_Document.h"
  26 #include "Model_SelectionNaming.h"
  27 #include <Model_Objects.h>
  28 #include <Model_AttributeSelectionList.h>
  29 #include <Model_ResultConstruction.h>
  30 #include <ModelAPI_Feature.h>
  31 #include <ModelAPI_ResultBody.h>
  32 #include <ModelAPI_ResultBody.h>
  33 #include <ModelAPI_ResultConstruction.h>
  34 #include <ModelAPI_ResultPart.h>
  35 #include <ModelAPI_CompositeFeature.h>
  36 #include <ModelAPI_Tools.h>
  37 #include <ModelAPI_Session.h>
  38 #include <ModelAPI_Validator.h>
  39 #include <ModelGeomAlgo_Shape.h>
  40 #include <Events_InfoMessage.h>
  41 #include <GeomAPI_Edge.h>
  42 #include <GeomAPI_Pnt.h>
  43 #include <GeomAPI_Vertex.h>
  44 #include <GeomAlgoAPI_CompoundBuilder.h>
  45
  46 #include <TNaming_Selector.hxx>
  47 #include <TNaming_NamedShape.hxx>
  48 #include <TNaming_Tool.hxx>
  49 #include <TNaming_Builder.hxx>
  50 #include <TNaming_SameShapeIterator.hxx>
  51 #include <TNaming_Iterator.hxx>
  52 #include <TDataStd_Integer.hxx>
  53 #include <TDataStd_UAttribute.hxx>
  54 #include <TDataStd_Name.hxx>
  55 #include <TopTools_ListOfShape.hxx>
  56 #include <TopTools_DataMapOfShapeShape.hxx>
  57 #include <TopTools_MapOfShape.hxx>
  58 #include <TopExp_Explorer.hxx>
  59 #include <BRep_Tool.hxx>
  60 #include <TopoDS.hxx>
  61 #include <TopExp.hxx>
  62 #include <TDF_ChildIterator.hxx>
  63 #include <TDF_ChildIDIterator.hxx>
  64 #include <TopoDS_Iterator.hxx>
  65 #include <TDF_ChildIDIterator.hxx>
  66 #include <Geom_Circle.hxx>
  67 #include <Geom_Ellipse.hxx>
  68 #include <BRep_Builder.hxx>
  69
  70 //#define DEB_NAMING 1
  71 #ifdef DEB_NAMING
  72 #include <BRepTools.hxx>
  73 #endif
  74 /// added to the index in the packed map to signalize that the vertex of edge is selected
  75 /// (multiplied by the index of the edge)
  76 static const int kSTART_VERTEX_DELTA = 1000000;
  77 // identifier that there is simple reference: selection equals to context
  78 Standard_GUID kSIMPLE_REF_ID("635eacb2-a1d6-4dec-8348-471fae17cb29");
  79 // reference to Part sub-object
  80 Standard_GUID kPART_REF_ID("635eacb2-a1d6-4dec-8348-471fae17cb27");
  81 // selection is invalid after recomputation
  82 Standard_GUID kINVALID_SELECTION("bce47fd7-80fa-4462-9d63-2f58acddd49d");
  83
  84 // identifier of the selection of the center of circle on edge
  85 Standard_GUID kCIRCLE_CENTER("d0d0e0f1-217a-4b95-8fbb-0c4132f23718");
  86 // identifier of the selection of the first focus point of ellipse on edge
  87 Standard_GUID kELLIPSE_CENTER1("f70df04c-3168-4dc9-87a4-f1f840c1275d");
  88 // identifier of the selection of the second focus point of ellipse on edge
  89 Standard_GUID kELLIPSE_CENTER2("1395ae73-8e02-4cf8-b204-06ff35873a32");
  90
  91 // prefix for the whole feature context identification
  92 const static std::string kWHOLE_FEATURE = "all-in-";
  93
  94 // on this label is stored:
  95 // TNaming_NamedShape - selected shape
  96 // TNaming_Naming - topological selection information (for the body)
  97 // TDataStd_IntPackedMap - indexes of edges in composite element (for construction)
  98 // TDataStd_Integer - type of the selected shape (for construction)
  99 // TDF_Reference - from ReferenceAttribute, the context
 100 bool Model_AttributeSelection::setValue(const ObjectPtr& theContext,
 101   const std::shared_ptr<GeomAPI_Shape>& theSubShape, const bool theTemporarily)
 102 {
 103   if (theTemporarily &&
 104       (!theContext.get() || theContext->groupName() != ModelAPI_Feature::group())) {
 105     // just keep the stored without DF update
 106     myTmpContext = std::dynamic_pointer_cast<ModelAPI_Result>(theContext);
 107     myTmpSubShape = theSubShape;
 108     owner()->data()->sendAttributeUpdated(this);
 109     return true;
 110   } else {
 111     myTmpContext.reset();
 112     myTmpSubShape.reset();
 113     myTmpCenterType = NOT_CENTER;
 114   }
 115
 116   CenterType aType;
 117   const std::shared_ptr<GeomAPI_Shape>& anOldShape = internalValue(aType);
 118   bool isOldContext = theContext == myRef.value();
 119   bool isOldShape = isOldContext &&
 120     (theSubShape == anOldShape || (theSubShape && anOldShape && theSubShape->isEqual(anOldShape)));
 121   if (isOldShape) return false; // shape is the same, so context is also unchanged
 122   bool aToUnblock = false;
 123   // update the referenced object if needed
 124   if (!isOldContext) {
 125     aToUnblock = !owner()->data()->blockSendAttributeUpdated(true);
 126     myRef.setValue(theContext);
 127   }
 128
 129   // do noth use naming if selected shape is result shape itself, but not sub-shape
 130   TDF_Label aSelLab = selectionLabel();
 131   aSelLab.ForgetAttribute(kSIMPLE_REF_ID);
 132   aSelLab.ForgetAttribute(kINVALID_SELECTION);
 133   aSelLab.ForgetAttribute(kCIRCLE_CENTER);
 134   aSelLab.ForgetAttribute(kELLIPSE_CENTER1);
 135   aSelLab.ForgetAttribute(kELLIPSE_CENTER2);
 136
 137   bool isDegeneratedEdge = false;
 138   // do not use the degenerated edge as a shape, a null context and shape is used in the case
 139   if (theSubShape.get() && !theSubShape->isNull() && theSubShape->isEdge()) {
 140     const TopoDS_Shape& aSubShape = theSubShape->impl<TopoDS_Shape>();
 141     if (aSubShape.ShapeType() == TopAbs_EDGE)
 142       isDegeneratedEdge = BRep_Tool::Degenerated(TopoDS::Edge(aSubShape)) == Standard_True;
 143   }
 144   if (!theContext.get() || isDegeneratedEdge) {
 145     // to keep the reference attribute label
 146     TDF_Label aRefLab = myRef.myRef->Label();
 147     aSelLab.ForgetAllAttributes(true);
 148     myRef.myRef = TDF_Reference::Set(aSelLab.Father(), aSelLab.Father());
 149     if (aToUnblock)
 150       owner()->data()->blockSendAttributeUpdated(false);
 151     return false;
 152   }
 153   if (theContext->groupName() == ModelAPI_ResultBody::group()) {
 154     ResultBodyPtr aContextBody = std::dynamic_pointer_cast<ModelAPI_ResultBody>(theContext);
 155     // do not select the whole shape for body:it is already must be in the data framework
 156     // equal and null selected objects mean the same: object is equal to context,
 157     if (aContextBody->shape().get() &&
 158         (aContextBody->shape()->isEqual(theSubShape) || !theSubShape.get())) {
 159       aSelLab.ForgetAllAttributes(true);
 160       TDataStd_UAttribute::Set(aSelLab, kSIMPLE_REF_ID);
 161     } else {
 162       selectBody(aContextBody, theSubShape);
 163     }
 164   } else if (theContext->groupName() == ModelAPI_ResultConstruction::group()) {
 165     ResultConstructionPtr aContextConstruction =
 166       std::dynamic_pointer_cast<ModelAPI_ResultConstruction>(theContext);
 167     aSelLab.ForgetAllAttributes(true); // to remove old selection data
 168     std::shared_ptr<Model_ResultConstruction> aConstruction =
 169       std::dynamic_pointer_cast<Model_ResultConstruction>(theContext);
 170     std::shared_ptr<GeomAPI_Shape> aSubShape;
 171     if (theSubShape.get() && !aContextConstruction->shape()->isEqual(theSubShape))
 172       aSubShape = theSubShape; // the whole context
 173     if (aConstruction->isInfinite()) {
 174       // For correct naming selection, put the shape into the naming structure.
 175       // It seems sub-shapes are not needed: only this shape is (and can be ) selected.
 176       TNaming_Builder aBuilder(aSelLab);
 177       aBuilder.Generated(aContextConstruction->shape()->impl<TopoDS_Shape>());
 178     }
 179     int anIndex = aConstruction->select(theSubShape, owner()->document());
 180     TDataStd_Integer::Set(aSelLab, anIndex);
 181   } else if (theContext->groupName() == ModelAPI_ResultPart::group()) {
 182     aSelLab.ForgetAllAttributes(true);
 183     TDataStd_UAttribute::Set(aSelLab, kPART_REF_ID);
 184     selectPart(std::dynamic_pointer_cast<ModelAPI_Result>(theContext), theSubShape);
 185   } else { // check the feature context: parent-Part of this feature should not be used
 186     FeaturePtr aFeatureContext = std::dynamic_pointer_cast<ModelAPI_Feature>(theContext);
 187     if (aFeatureContext.get()) {
 188       if (owner()->document() != aFeatureContext->document()) {
 189         aSelLab.ForgetAllAttributes(true);
 190         myRef.setValue(ObjectPtr());
 191         if (aToUnblock)
 192           owner()->data()->blockSendAttributeUpdated(false);
 193         return false;
 194       }
 195     }
 196   }
 197
 198   owner()->data()->sendAttributeUpdated(this);
 199
 200   if (aToUnblock)
 201     owner()->data()->blockSendAttributeUpdated(false);
 202
 203   return true;
 204 }
 205
 206 void Model_AttributeSelection::setValueCenter(
 207     const ObjectPtr& theContext, const std::shared_ptr<GeomAPI_Edge>& theEdge,
 208     const CenterType theCenterType, const bool theTemporarily)
 209 {
 210   bool anUpdated = setValue(theContext, theEdge, theTemporarily);
 211   if (theTemporarily) {
 212     myTmpCenterType = theCenterType;
 213   } else { // store in the data structure
 214     TDF_Label aSelLab = selectionLabel();
 215     switch(theCenterType) {
 216     case CIRCLE_CENTER:
 217       if (!anUpdated)
 218         anUpdated = !aSelLab.IsAttribute(kCIRCLE_CENTER);
 219       TDataStd_UAttribute::Set(aSelLab, kCIRCLE_CENTER);
 220       break;
 221     case ELLIPSE_FIRST_FOCUS:
 222       if (!anUpdated)
 223         anUpdated = !aSelLab.IsAttribute(kELLIPSE_CENTER1);
 224       TDataStd_UAttribute::Set(aSelLab, kELLIPSE_CENTER1);
 225       break;
 226     case ELLIPSE_SECOND_FOCUS:
 227       if (!anUpdated)
 228         anUpdated = !aSelLab.IsAttribute(kELLIPSE_CENTER2);
 229       TDataStd_UAttribute::Set(aSelLab, kELLIPSE_CENTER2);
 230       break;
 231     }
 232     if (anUpdated)
 233       owner()->data()->sendAttributeUpdated(this);
 234   }
 235 }
 236
 237 void Model_AttributeSelection::selectValue(
 238     const std::shared_ptr<ModelAPI_AttributeSelection>& theSource)
 239 {
 240   CenterType aType;
 241   std::shared_ptr<GeomAPI_Shape> aValue =
 242     std::dynamic_pointer_cast<Model_AttributeSelection>(theSource)->internalValue(aType);
 243   if (!aValue.get() || aType == NOT_CENTER) {
 244     setValue(theSource->context(), aValue);
 245   } else {
 246     std::shared_ptr<GeomAPI_Edge> anEdge(new GeomAPI_Edge);
 247     anEdge->setImpl(new TopoDS_Shape(aValue->impl<TopoDS_Shape>()));
 248     setValueCenter(theSource->context(), anEdge, aType);
 249   }
 250 }
 251
 252 void Model_AttributeSelection::removeTemporaryValues()
 253 {
 254   if (myTmpContext.get() || myTmpSubShape.get()) {
 255     myTmpContext.reset();
 256     myTmpSubShape.reset();
 257   }
 258 }
 259
 260 // returns the center of the edge: circular or elliptical
 261 GeomShapePtr centerByEdge(GeomShapePtr theEdge, ModelAPI_AttributeSelection::CenterType theType)
 262 {
 263   if (theType != ModelAPI_AttributeSelection::NOT_CENTER && theEdge.get() != NULL) {
 264     TopoDS_Shape aShape = theEdge->impl<TopoDS_Shape>();
 265     if (!aShape.IsNull() && aShape.ShapeType() == TopAbs_EDGE) {
 266       TopoDS_Edge anEdge = TopoDS::Edge(aShape);
 267       double aFirst, aLast;
 268       Handle(Geom_Curve) aCurve = BRep_Tool::Curve(anEdge, aFirst, aLast);
 269       if (!aCurve.IsNull()) {
 270         TopoDS_Vertex aVertex;
 271         BRep_Builder aBuilder;
 272         if (theType == ModelAPI_AttributeSelection::CIRCLE_CENTER) {
 273           Handle(Geom_Circle) aCirc = Handle(Geom_Circle)::DownCast(aCurve);
 274           if (!aCirc.IsNull()) {
 275             aBuilder.MakeVertex(aVertex, aCirc->Location(), Precision::Confusion());
 276           }
 277         } else { // ellipse
 278           Handle(Geom_Ellipse) anEll = Handle(Geom_Ellipse)::DownCast(aCurve);
 279           if (!anEll.IsNull()) {
 280             aBuilder.MakeVertex(aVertex,
 281               theType == ModelAPI_AttributeSelection::ELLIPSE_FIRST_FOCUS ?
 282               anEll->Focus1() : anEll->Focus2(), Precision::Confusion());
 283           }
 284         }
 285         if (!aVertex.IsNull()) {
 286           std::shared_ptr<GeomAPI_Vertex> aResult(new GeomAPI_Vertex);
 287           aResult->setImpl(new TopoDS_Vertex(aVertex));
 288           return aResult;
 289         }
 290       }
 291     }
 292   }
 293   return theEdge; // no vertex, so, return the initial edge
 294 }
 295
 296 std::shared_ptr<GeomAPI_Shape> Model_AttributeSelection::value()
 297 {
 298   if (!ModelAPI_AttributeSelection::isInitialized() && !myTmpContext.get() && !myTmpSubShape.get())
 299     return std::shared_ptr<GeomAPI_Shape>();
 300   CenterType aType = NOT_CENTER;
 301   std::shared_ptr<GeomAPI_Shape> aResult = internalValue(aType);
 302   return centerByEdge(aResult, aType);
 303 }
 304
 305 std::shared_ptr<GeomAPI_Shape> Model_AttributeSelection::internalValue(CenterType& theType)
 306 {
 307   theType = NOT_CENTER;
 308   GeomShapePtr aResult;
 309   if (myTmpContext.get() || myTmpSubShape.get()) {
 310     theType = myTmpCenterType;
 311     ResultConstructionPtr aResulConstruction =
 312       std::dynamic_pointer_cast<ModelAPI_ResultConstruction>(myTmpContext);
 313     if(aResulConstruction.get()) {
 314       // it is just reference to construction.
 315       return myTmpSubShape;
 316     }
 317     return myTmpSubShape.get() ? myTmpSubShape : myTmpContext->shape();
 318   }
 319
 320   TDF_Label aSelLab = selectionLabel();
 321   if (aSelLab.IsAttribute(kINVALID_SELECTION))
 322     return aResult;
 323
 324   if (aSelLab.IsAttribute(kCIRCLE_CENTER))
 325     theType = CIRCLE_CENTER;
 326   else if (aSelLab.IsAttribute(kELLIPSE_CENTER1))
 327     theType = ELLIPSE_FIRST_FOCUS;
 328   else if (aSelLab.IsAttribute(kELLIPSE_CENTER2))
 329     theType = ELLIPSE_SECOND_FOCUS;
 330
 331
 332   if (myRef.isInitialized()) {
 333     if (aSelLab.IsAttribute(kSIMPLE_REF_ID)) { // it is just reference to shape, not sub-shape
 334       ResultPtr aContext = context();
 335       if (!aContext.get())
 336         return aResult; // empty result
 337       return aContext->shape();
 338     }
 339     if (aSelLab.IsAttribute(kPART_REF_ID)) {
 340       ResultPartPtr aPart = std::dynamic_pointer_cast<ModelAPI_ResultPart>(context());
 341       if (!aPart.get() || !aPart->isActivated())
 342         return std::shared_ptr<GeomAPI_Shape>(); // postponed naming needed
 343       Handle(TDataStd_Integer) anIndex;
 344       if (aSelLab.FindAttribute(TDataStd_Integer::GetID(), anIndex)) {
 345         if (anIndex->Get()) { // special selection attribute was created, use it
 346           return aPart->selectionValue(anIndex->Get());
 347         } else { // face with name is already in the data model, so try to take it by name
 348           Handle(TDataStd_Name) aName;
 349           if (aSelLab.FindAttribute(TDataStd_Name::GetID(), aName)) {
 350             std::string aSubShapeName(TCollection_AsciiString(aName->Get()).ToCString());
 351             std::size_t aPartEnd = aSubShapeName.find('/');
 352             if (aPartEnd != std::string::npos && aPartEnd != aSubShapeName.rfind('/')) {
 353               std::string aNameInPart = aSubShapeName.substr(aPartEnd + 1);
 354               int anIndex;
 355               std::string aType; // to reuse already existing selection the type is not needed
 356               return aPart->shapeInPart(aNameInPart, aType, anIndex);
 357             }
 358           }
 359         }
 360       }
 361     }
 362
 363     std::shared_ptr<Model_ResultConstruction> aConstr =
 364       std::dynamic_pointer_cast<Model_ResultConstruction>(context());
 365     if (aConstr) {
 366       if (aConstr->isInfinite())
 367         return aResult; // empty result
 368     }
 369     if (!aConstr.get()) { // for construction context, return empty result as usual even
 370       // the whole feature is selected
 371       FeaturePtr aFeature = contextFeature();
 372       if (aFeature.get()) {
 373         std::list<GeomShapePtr> allShapes;
 374         std::list<ResultPtr>::const_iterator aRes = aFeature->results().cbegin();
 375         for (; aRes != aFeature->results().cend(); aRes++) {
 376           if (aRes->get() && !(*aRes)->isDisabled()) {
 377             GeomShapePtr aShape = (*aRes)->shape();
 378             if (aShape.get() && !aShape->isNull()) {
 379               allShapes.push_back(aShape);
 380             }
 381           }
 382         }
 383         return GeomAlgoAPI_CompoundBuilder::compound(allShapes);
 384       }
 385     }
 386
 387     Handle(TNaming_NamedShape) aSelection;
 388     if (aSelLab.FindAttribute(TNaming_NamedShape::GetID(), aSelection)) {
 389       TopoDS_Shape aSelShape = aSelection->Get();
 390       aResult = std::shared_ptr<GeomAPI_Shape>(new GeomAPI_Shape);
 391       aResult->setImpl(new TopoDS_Shape(aSelShape));
 392     } else if (aConstr) { // simple construction element: just shape of this construction element
 393       Handle(TDataStd_Integer) anIndex;
 394       if (aSelLab.FindAttribute(TDataStd_Integer::GetID(), anIndex)) {
 395         if (anIndex->Get() == 0) // it is just reference to construction, nothing is in value
 396           return aResult;
 397         return aConstr->shape(anIndex->Get(), owner()->document());
 398       }
 399     }
 400   }
 401   return aResult;
 402 }
 403
 404 bool Model_AttributeSelection::isInvalid()
 405 {
 406   return selectionLabel().IsAttribute(kINVALID_SELECTION) == Standard_True;
 407 }
 408
 409 bool Model_AttributeSelection::isInitialized()
 410 {
 411   if (ModelAPI_AttributeSelection::isInitialized()) { // additional checks if it is initialized
 412     std::shared_ptr<GeomAPI_Shape> aResult;
 413     if (myRef.isInitialized()) {
 414       TDF_Label aSelLab = selectionLabel();
 415       if (aSelLab.IsAttribute(kSIMPLE_REF_ID)) { // it is just reference to shape, not sub-shape
 416         ResultPtr aContext = context();
 417         return aContext.get() != NULL;
 418       }
 419       Handle(TNaming_NamedShape) aSelection;
 420       if (selectionLabel().FindAttribute(TNaming_NamedShape::GetID(), aSelection)) {
 421         return !aSelection->Get().IsNull();
 422       } else { // for simple construction element: just shape of this construction element
 423         std::shared_ptr<Model_ResultConstruction> aConstr =
 424           std::dynamic_pointer_cast<Model_ResultConstruction>(context());
 425         if (aConstr.get()) {
 426           Handle(TDataStd_Integer) anIndex;
 427           if (aSelLab.FindAttribute(TDataStd_Integer::GetID(), anIndex)) {
 428             // for the whole shape it may return null, so, if index exists, returns true
 429             return true;
 430           }
 431         }
 432         // for the whole feature, a feature object
 433         FeaturePtr aFeat = contextFeature();
 434         if (aFeat.get())
 435           return true;
 436       }
 437     }
 438   }
 439   return false;
 440 }
 441
 442 Model_AttributeSelection::Model_AttributeSelection(TDF_Label& theLabel)
 443   : myRef(theLabel)
 444 {
 445   myIsInitialized = myRef.isInitialized();
 446   myParent = NULL;
 447 }
 448
 449 void Model_AttributeSelection::setID(const std::string theID)
 450 {
 451   myRef.setID(theID);
 452   ModelAPI_AttributeSelection::setID(theID);
 453 }
 454
 455 ResultPtr Model_AttributeSelection::context()
 456 {
 457   if (!ModelAPI_AttributeSelection::isInitialized() && !myTmpContext.get() && !myTmpSubShape.get())
 458     return ResultPtr();
 459
 460   if (myTmpContext.get() || myTmpSubShape.get()) {
 461     return myTmpContext;
 462   }
 463
 464   ResultPtr aResult = std::dynamic_pointer_cast<ModelAPI_Result>(myRef.value());
 465   // for parts there could be same-data result, so take the last enabled
 466   if (aResult.get()) {
 467     if(aResult->groupName() == ModelAPI_ResultPart::group()) {
 468       int aSize = aResult->document()->size(ModelAPI_ResultPart::group());
 469       for(int a = aSize - 1; a >= 0; a--) {
 470         ObjectPtr aPart = aResult->document()->object(ModelAPI_ResultPart::group(), a);
 471         if(aPart.get() && aPart->data() == aResult->data()) {
 472           ResultPtr aPartResult = std::dynamic_pointer_cast<ModelAPI_Result>(aPart);
 473           FeaturePtr anOwnerFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(owner());
 474           // check that this result is not this-feature result (it is forbidden t oselect itself)
 475           if(anOwnerFeature.get() && anOwnerFeature->firstResult() != aPartResult) {
 476             return aPartResult;
 477           }
 478         }
 479       }
 480     }
 481   } else { // if feature - construction is selected, it has only one result, return this result
 482     FeaturePtr aFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(myRef.value());
 483     if (aFeature.get() && aFeature->results().size() == 1 &&
 484         aFeature->firstResult()->groupName() == ModelAPI_ResultConstruction::group())
 485       return aFeature->firstResult();
 486   }
 487   return aResult;
 488 }
 489
 490 FeaturePtr Model_AttributeSelection::contextFeature() {
 491   if (myTmpContext.get() || myTmpSubShape.get()) {
 492     return FeaturePtr(); // feature can not be selected temporarily
 493   }
 494   return std::dynamic_pointer_cast<ModelAPI_Feature>(myRef.value());
 495 }
 496 ObjectPtr Model_AttributeSelection::contextObject() {
 497   FeaturePtr aRes = contextFeature();
 498   if (aRes.get())
 499     return aRes;
 500   return context();
 501 }
 502
 503
 504 void Model_AttributeSelection::setObject(const std::shared_ptr<ModelAPI_Object>& theObject)
 505 {
 506   ModelAPI_AttributeSelection::setObject(theObject);
 507   myRef.setObject(theObject);
 508 }
 509
 510 TDF_LabelMap& Model_AttributeSelection::scope()
 511 {
 512   if (myScope.IsEmpty()) { // create a new scope if not yet done
 513     // gets all features with named shapes that are before this feature label (before in history)
 514     DocumentPtr aMyDoc = owner()->document();
 515     std::list<std::shared_ptr<ModelAPI_Feature> > allFeatures = aMyDoc->allFeatures();
 516     std::list<std::shared_ptr<ModelAPI_Feature> >::iterator aFIter = allFeatures.begin();
 517     bool aMePassed = false;
 518     CompositeFeaturePtr aComposite =
 519       std::dynamic_pointer_cast<ModelAPI_CompositeFeature>(owner());
 520     FeaturePtr aFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(owner());
 521     CompositeFeaturePtr aCompositeOwner, aCompositeOwnerOwner;
 522     if (aFeature.get()) {
 523       aCompositeOwner = ModelAPI_Tools::compositeOwner(aFeature);
 524       if (aCompositeOwner.get()) {
 525          aCompositeOwnerOwner = ModelAPI_Tools::compositeOwner(aCompositeOwner);
 526       }
 527     }
 528     // for group Scope is not limitet: this is always up to date objects
 529     // this causes problem in galeries.py
 530     //bool isGroup = aFeature.get() && aFeature->getKind() == "Group";
 531     for(; aFIter != allFeatures.end(); aFIter++) {
 532       if (*aFIter == owner()) {  // the left features are created later (except subs of composite)
 533         aMePassed = true;
 534         continue;
 535       }
 536       //if (isGroup) aMePassed = false;
 537       bool isInScope = !aMePassed;
 538       if (!isInScope && aComposite.get()) {
 539         // try to add sub-elements of composite if this is composite
 540         if (aComposite->isSub(*aFIter))
 541           isInScope = true;
 542       }
 543       // remove the composite-owner of this feature (sketch in extrusion-cut)
 544       if (isInScope && (aCompositeOwner == *aFIter || aCompositeOwnerOwner == *aFIter))
 545         isInScope = false;
 546
 547       if (isInScope && aFIter->get() && (*aFIter)->data()->isValid()) {
 548         TDF_Label aFeatureLab = std::dynamic_pointer_cast<Model_Data>(
 549           (*aFIter)->data())->label().Father();
 550         TDF_ChildIDIterator aNSIter(aFeatureLab, TNaming_NamedShape::GetID(), true);
 551         for(; aNSIter.More(); aNSIter.Next()) {
 552           Handle(TNaming_NamedShape) aNS = Handle(TNaming_NamedShape)::DownCast(aNSIter.Value());
 553           if (!aNS.IsNull() && aNS->Evolution() != TNaming_SELECTED) {
 554             myScope.Add(aNS->Label());
 555           }
 556         }
 557       }
 558     }
 559     // also add all naming labels created for external constructions
 560     std::shared_ptr<Model_Document> aDoc = std::dynamic_pointer_cast<Model_Document>(aMyDoc);
 561     TDF_Label anExtDocLab = aDoc->extConstructionsLabel();
 562     TDF_ChildIDIterator aNSIter(anExtDocLab, TNaming_NamedShape::GetID(), true);
 563     for(; aNSIter.More(); aNSIter.Next()) {
 564       Handle(TNaming_NamedShape) aNS = Handle(TNaming_NamedShape)::DownCast(aNSIter.Value());
 565       if (!aNS.IsNull() && aNS->Evolution() != TNaming_SELECTED) {
 566         myScope.Add(aNS->Label());
 567       }
 568     }
 569   }
 570   return myScope;
 571 }
 572
 573 /// Sets the invalid flag if flag is false, or removes it if "true"
 574 /// Returns theFlag
 575 static bool setInvalidIfFalse(TDF_Label& theLab, const bool theFlag) {
 576   if (theFlag) {
 577     theLab.ForgetAttribute(kINVALID_SELECTION);
 578   } else {
 579     TDataStd_UAttribute::Set(theLab, kINVALID_SELECTION);
 580   }
 581   return theFlag;
 582 }
 583
 584 void Model_AttributeSelection::split(
 585   ResultPtr theContext, TopoDS_Shape theNewShape, TopAbs_ShapeEnum theType)
 586 {
 587   TopTools_ListOfShape aSubs;
 588   for(TopoDS_Iterator anExplorer(theNewShape); anExplorer.More(); anExplorer.Next()) {
 589     if (!anExplorer.Value().IsNull() &&
 590       anExplorer.Value().ShapeType() == theType) {
 591         aSubs.Append(anExplorer.Value());
 592     } else { // invalid case; bad result shape, so, impossible to split easily
 593       aSubs.Clear();
 594       break;
 595     }
 596   }
 597   if (aSubs.Extent() > 1) { // ok to split
 598     TopTools_ListIteratorOfListOfShape aSub(aSubs);
 599     GeomShapePtr aSubSh(new GeomAPI_Shape);
 600     aSubSh->setImpl(new TopoDS_Shape(aSub.Value()));
 601     setValue(theContext, aSubSh);
 602     for(aSub.Next(); aSub.More(); aSub.Next()) {
 603       GeomShapePtr aSubSh(new GeomAPI_Shape);
 604       aSubSh->setImpl(new TopoDS_Shape(aSub.Value()));
 605       myParent->append(theContext, aSubSh);
 606     }
 607   }
 608 }
 609
 610 bool Model_AttributeSelection::update()
 611 {
 612   FeaturePtr aContextFeature = contextFeature();
 613   if (aContextFeature.get()) {
 614     return true;
 615   }
 616   TDF_Label aSelLab = selectionLabel();
 617   ResultPtr aContext = context();
 618   if (!aContext.get())
 619     return setInvalidIfFalse(aSelLab, false);
 620   if (aSelLab.IsAttribute(kSIMPLE_REF_ID)) { // it is just reference to shape, not sub-shape
 621     return setInvalidIfFalse(aSelLab, aContext->shape() && !aContext->shape()->isNull());
 622   }
 623
 624   if (aSelLab.IsAttribute(kPART_REF_ID)) { // it is reference to the part object
 625     std::shared_ptr<GeomAPI_Shape> aNoSelection;
 626     bool aResult = selectPart(aContext, aNoSelection, true);
 627     aResult = setInvalidIfFalse(aSelLab, aResult);
 628     if (aResult) {
 629       owner()->data()->sendAttributeUpdated(this);
 630     }
 631     return aResult;
 632   }
 633
 634   if (aContext->groupName() == ModelAPI_ResultBody::group()) {
 635     // body: just a named shape, use selection mechanism from OCCT
 636     TNaming_Selector aSelector(aSelLab);
 637     TopoDS_Shape anOldShape;
 638     if (!aSelector.NamedShape().IsNull()) {
 639       anOldShape = aSelector.NamedShape()->Get();
 640     }
 641     bool aResult = aSelector.Solve(scope()) == Standard_True;
 642     // must be before sending of updated attribute (1556)
 643     aResult = setInvalidIfFalse(aSelLab, aResult);
 644     TopoDS_Shape aNewShape;
 645     if (!aSelector.NamedShape().IsNull()) {
 646       aNewShape = aSelector.NamedShape()->Get();
 647     }
 648     if (anOldShape.IsNull() || aNewShape.IsNull() ||
 649         !anOldShape.IsEqual(aSelector.NamedShape()->Get())) {
 650       // shape type shoud not not changed: if shape becomes compound of such shapes, then split
 651       if (myParent && !anOldShape.IsNull() && !aNewShape.IsNull() &&
 652           anOldShape.ShapeType() != aNewShape.ShapeType() &&
 653           (aNewShape.ShapeType() == TopAbs_COMPOUND || aNewShape.ShapeType() == TopAbs_COMPSOLID))
 654       {
 655         split(aContext, aNewShape, anOldShape.ShapeType());
 656       }
 657       owner()->data()->sendAttributeUpdated(this);  // send updated if shape is changed
 658     }
 659     return aResult;
 660   }
 661
 662   if (aContext->groupName() == ModelAPI_ResultConstruction::group()) {
 663     Handle(TDataStd_Integer) anIndex;
 664     if (aSelLab.FindAttribute(TDataStd_Integer::GetID(), anIndex)) {
 665       std::shared_ptr<Model_ResultConstruction> aConstructionContext =
 666         std::dynamic_pointer_cast<Model_ResultConstruction>(aContext);
 667       bool aModified = true;
 668       bool aValid = aConstructionContext->update(anIndex->Get(), owner()->document(), aModified);
 669       setInvalidIfFalse(aSelLab, aValid);
 670       if (aConstructionContext->isInfinite()) {
 671         // Update the selected shape.
 672         TNaming_Builder aBuilder(aSelLab);
 673         aBuilder.Generated(aConstructionContext->shape()->impl<TopoDS_Shape>());
 674       }
 675       if (aModified)
 676         owner()->data()->sendAttributeUpdated(this);
 677       return aValid;
 678     }
 679   }
 680   return setInvalidIfFalse(aSelLab, false); // unknown case
 681 }
 682
 683 void Model_AttributeSelection::selectBody(
 684   const ResultPtr& theContext, const std::shared_ptr<GeomAPI_Shape>& theSubShape)
 685 {
 686   // perform the selection
 687   TNaming_Selector aSel(selectionLabel());
 688   TopoDS_Shape aContext;
 689
 690   ResultBodyPtr aBody = std::dynamic_pointer_cast<ModelAPI_ResultBody>(theContext);//myRef.value()
 691   if (aBody) {
 692     aContext = aBody->shape()->impl<TopoDS_Shape>();
 693   } else {
 694     ResultPtr aResult =
 695       std::dynamic_pointer_cast<ModelAPI_Result>(myRef.value());
 696     if (aResult) {
 697       aContext = aResult->shape()->impl<TopoDS_Shape>();
 698     } else {
 699       Events_InfoMessage("Model_AttributeSelection", "A result with shape is expected").send();
 700       return;
 701     }
 702   }
 703
 704   // with "recover" feature the selected context may be not up to date (issue 1710)
 705   Handle(TNaming_NamedShape) aResult;
 706   TDF_Label aSelLab = selectionLabel();
 707   TopoDS_Shape aNewContext = aContext;
 708   bool isUpdated = true;
 709   while(!aNewContext.IsNull() && isUpdated) {
 710     // searching for the very last shape that was produced from this one
 711     isUpdated = false;
 712     if (!TNaming_Tool::HasLabel(aSelLab, aNewContext))
 713       // to avoid crash of TNaming_SameShapeIterator if pure shape does not exists
 714       break;
 715     for(TNaming_SameShapeIterator anIter(aNewContext, aSelLab); anIter.More(); anIter.Next()) {
 716       TDF_Label aNSLab = anIter.Label();
 717       if (!scope().Contains(aNSLab))
 718         continue;
 719       Handle(TNaming_NamedShape) aNS;
 720       if (aNSLab.FindAttribute(TNaming_NamedShape::GetID(), aNS)) {
 721         for(TNaming_Iterator aShapesIter(aNS); aShapesIter.More(); aShapesIter.Next()) {
 722           if (aShapesIter.Evolution() == TNaming_SELECTED)
 723             continue; // don't use the selection evolution
 724           if (!aShapesIter.OldShape().IsNull() && aShapesIter.OldShape().IsSame(aNewContext)) {
 725              // found the original shape
 726             aNewContext = aShapesIter.NewShape(); // go to the newer shape
 727             isUpdated = true;
 728             break;
 729           }
 730         }
 731       }
 732     }
 733   }
 734   if (aNewContext.IsNull()) { // a context is already deleted
 735     setInvalidIfFalse(aSelLab, false);
 736     Events_InfoMessage("Model_AttributeSelection", "Failed to select shape already deleted").send();
 737     return;
 738   }
 739
 740   TopoDS_Shape aNewSub = theSubShape ? theSubShape->impl<TopoDS_Shape>() : aContext;
 741   if (!aNewSub.IsEqual(aContext)) { // searching for subshape in the new context
 742     bool isFound = false;
 743     TopExp_Explorer anExp(aNewContext, aNewSub.ShapeType());
 744     for(; anExp.More(); anExp.Next()) {
 745       if (anExp.Current().IsSame(aNewSub)) {
 746         isFound = true;
 747         break;
 748       }
 749     }
 750     if (!isFound) { // sub-shape is not found in the up-to-date instance of the context shape
 751       // if context is sub-result of compound/compsolid, selection of sub-shape better propagate to
 752       // the main result (which is may be modified); the case is in 1799
 753       ResultBodyPtr aMain = ModelAPI_Tools::bodyOwner(theContext);
 754       while(ModelAPI_Tools::bodyOwner(aMain).get())
 755         aMain = ModelAPI_Tools::bodyOwner(theContext);
 756       if (aMain.get()) {
 757         selectBody(aMain, theSubShape);
 758         return;
 759       }
 760       setInvalidIfFalse(aSelLab, false);
 761       Events_InfoMessage("Model_AttributeSelection",
 762         "Failed to select sub-shape already modified").send();
 763       return;
 764     }
 765   }
 766
 767   /// fix for issue 411: result modified shapes must not participate in this selection mechanism
 768   if (!aContext.IsNull()) {
 769     FeaturePtr aFeatureOwner = std::dynamic_pointer_cast<ModelAPI_Feature>(owner());
 770     bool aEraseResults = false;
 771     if (aFeatureOwner.get()) {
 772       aEraseResults = !aFeatureOwner->results().empty();
 773       if (aEraseResults) // erase results without flash deleted and redisplay: do it after Select
 774         aFeatureOwner->removeResults(0, false, false);
 775     }
 776     aSel.Select(aNewSub, aNewContext);
 777
 778     if (aEraseResults) { // flash after Select : in Groups it makes selection with shift working
 779       static Events_Loop* aLoop = Events_Loop::loop();
 780       static const Events_ID kDeletedEvent = aLoop->eventByName(EVENT_OBJECT_DELETED);
 781       aLoop->flush(kDeletedEvent);
 782     }
 783   }
 784 }
 785
 786 bool Model_AttributeSelection::selectPart(
 787   const ResultPtr& theContext, const std::shared_ptr<GeomAPI_Shape>& theSubShape,
 788   const bool theUpdate)
 789 {
 790   ResultPartPtr aPart = std::dynamic_pointer_cast<ModelAPI_ResultPart>(theContext);
 791   if (!aPart.get() || !aPart->isActivated())
 792     return true; // postponed naming
 793   if (theUpdate) {
 794     Handle(TDataStd_Integer) anIndex;
 795     if (selectionLabel().FindAttribute(TDataStd_Integer::GetID(), anIndex)) {
 796       // by internal selection
 797       if (anIndex->Get() > 0) {
 798         // update the selection by index
 799         return aPart->updateInPart(anIndex->Get());
 800       } else {
 801         return true; // nothing to do, referencing just by name
 802       }
 803     }
 804     return true; // nothing to do, referencing just by name
 805   }
 806   // store the shape (in case part is not loaded it should be useful
 807   TopoDS_Shape aShape;
 808   std::string aName = theContext->data()->name();
 809   if (!theSubShape.get() || theSubShape->isNull()) {// the whole part shape is selected
 810     aShape = theContext->shape()->impl<TopoDS_Shape>();
 811   } else {
 812     aShape = theSubShape->impl<TopoDS_Shape>();
 813     int anIndex;
 814     aName += "/" + aPart->nameInPart(theSubShape, anIndex);
 815     TDataStd_Integer::Set(selectionLabel(), anIndex);
 816   }
 817   TNaming_Builder aBuilder(selectionLabel());
 818   aBuilder.Select(aShape, aShape);
 819   // identify by name in the part
 820   TDataStd_Name::Set(selectionLabel(), aName.c_str());
 821   return !aName.empty();
 822 }
 823
 824 TDF_Label Model_AttributeSelection::selectionLabel()
 825 {
 826   return myRef.myRef->Label().FindChild(1);
 827 }
 828
 829 /// prefixes of the shape names with centers defined
 830 static std::map<ModelAPI_AttributeSelection::CenterType, std::string> kCENTERS_PREFIX;
 831
 832 /// returns the map that contains all possible prefixes of the center-names
 833 static std::map<ModelAPI_AttributeSelection::CenterType, std::string>& centersMap()
 834 {
 835   if (kCENTERS_PREFIX.empty()) { // fill map by initial values
 836     kCENTERS_PREFIX[ModelAPI_AttributeSelection::CIRCLE_CENTER] = "__cc";
 837     kCENTERS_PREFIX[ModelAPI_AttributeSelection::ELLIPSE_FIRST_FOCUS] = "__eff";
 838     kCENTERS_PREFIX[ModelAPI_AttributeSelection::ELLIPSE_SECOND_FOCUS] = "__esf";
 839   }
 840   return kCENTERS_PREFIX;
 841 }
 842
 843 std::string Model_AttributeSelection::namingName(const std::string& theDefaultName)
 844 {
 845   std::string aName("");
 846   if(!this->isInitialized())
 847     return !theDefaultName.empty() ? theDefaultName : aName;
 848
 849   CenterType aCenterType = NOT_CENTER;
 850   std::shared_ptr<GeomAPI_Shape> aSubSh = internalValue(aCenterType);
 851   ResultPtr aCont = context();
 852
 853   if (!aCont.get() ||
 854       (aCont->groupName() == ModelAPI_ResultConstruction::group() && contextFeature().get())) {
 855     // selection of a full feature
 856     FeaturePtr aFeatureCont = contextFeature();
 857     if (aFeatureCont.get()) {
 858       return kWHOLE_FEATURE + aFeatureCont->name();
 859     }
 860     // in case of selection of removed result
 861     return "";
 862   }
 863
 864   Model_SelectionNaming aSelNaming(selectionLabel());
 865   std::string aResult = aSelNaming.namingName(
 866     aCont, aSubSh, theDefaultName, owner()->document() != aCont->document());
 867   if (aCenterType != NOT_CENTER) {
 868     aResult += centersMap()[aCenterType];
 869   }
 870   return aResult;
 871 }
 872
 873 // returns the center type and modifies the shape name if this name is center-name
 874 static ModelAPI_AttributeSelection::CenterType centerTypeByName(std::string& theShapeName)
 875 {
 876   std::map<ModelAPI_AttributeSelection::CenterType, std::string>::iterator aPrefixIter =
 877     centersMap().begin();
 878   for(; aPrefixIter != centersMap().end(); aPrefixIter++) {
 879     std::size_t aFound = theShapeName.find(aPrefixIter->second);
 880     if (aFound != std::string::npos &&
 881         aFound == theShapeName.size() - aPrefixIter->second.size()) {
 882       theShapeName = theShapeName.substr(0, aFound);
 883       return aPrefixIter->first;
 884     }
 885   }
 886   return ModelAPI_AttributeSelection::NOT_CENTER;
 887 }
 888
 889 // type ::= COMP | COMS | SOLD | SHEL | FACE | WIRE | EDGE | VERT
 890 void Model_AttributeSelection::selectSubShape(
 891   const std::string& theType, const std::string& theSubShapeName)
 892 {
 893   if(theSubShapeName.empty() || theType.empty()) return;
 894
 895   std::string aSubShapeName = theSubShapeName;
 896   CenterType aCenterType = theType[0] == 'v' || theType[0] == 'V' ? // only for vertex-type
 897     centerTypeByName(aSubShapeName) : NOT_CENTER;
 898   std::string aType = aCenterType == NOT_CENTER ? theType : "EDGE"; // search for edge now
 899
 900   // first iteration is selection by name without center prefix, second - in case of problem,
 901   // try with initial name
 902   for(int aUseCenter = 1; aUseCenter >= 0; aUseCenter--) {
 903     if (aUseCenter == 0 && aCenterType != NOT_CENTER) {
 904       aSubShapeName = theSubShapeName;
 905       aCenterType = NOT_CENTER;
 906       aType = theType;
 907     } else if (aUseCenter != 1) continue;
 908
 909     // check this is Part-name: 2 delimiters in the name
 910     std::size_t aPartEnd = aSubShapeName.find('/');
 911     if (aPartEnd != std::string::npos && aPartEnd != aSubShapeName.rfind('/')) {
 912       std::string aPartName = aSubShapeName.substr(0, aPartEnd);
 913       ObjectPtr aFound = owner()->document()->objectByName(ModelAPI_ResultPart::group(), aPartName);
 914       if (aFound.get()) { // found such part, so asking it for the name
 915         ResultPartPtr aPart = std::dynamic_pointer_cast<ModelAPI_ResultPart>(aFound);
 916         std::string aNameInPart = aSubShapeName.substr(aPartEnd + 1);
 917         int anIndex;
 918         std::shared_ptr<GeomAPI_Shape> aSelected = aPart->shapeInPart(aNameInPart, aType, anIndex);
 919         if (aSelected.get()) {
 920           if (aCenterType != NOT_CENTER) {
 921             if (!aSelected->isEdge())
 922               continue;
 923             std::shared_ptr<GeomAPI_Edge> aSelectedEdge(new GeomAPI_Edge(aSelected));
 924             setValueCenter(aPart, aSelectedEdge, aCenterType);
 925           } else
 926             setValue(aPart, aSelected);
 927           TDataStd_Integer::Set(selectionLabel(), anIndex);
 928           return;
 929         }
 930       }
 931     }
 932
 933     std::shared_ptr<Model_Document> aDoc =
 934       std::dynamic_pointer_cast<Model_Document>(owner()->document());
 935     // check this is a whole feature context
 936     if (aSubShapeName.size() > kWHOLE_FEATURE.size() &&
 937       aSubShapeName.substr(0, kWHOLE_FEATURE.size()) == kWHOLE_FEATURE) {
 938       std::string aFeatureName = aSubShapeName.substr(kWHOLE_FEATURE.size());
 939       ObjectPtr anObj = aDoc->objectByName(ModelAPI_Feature::group(), aFeatureName);
 940       if (anObj.get()) {
 941         static const GeomShapePtr anEmptyShape;
 942         setValue(anObj, anEmptyShape);
 943         return;
 944       }
 945     }
 946
 947     Model_SelectionNaming aSelNaming(selectionLabel());
 948     std::shared_ptr<GeomAPI_Shape> aShapeToBeSelected;
 949     ResultPtr aCont;
 950     if (aSelNaming.selectSubShape(aType, aSubShapeName, aDoc, aShapeToBeSelected, aCont)) {
 951       // try to find the last context to find the up to date shape
 952       if (aCont->shape().get() && !aCont->shape()->isNull() &&
 953         aCont->groupName() == ModelAPI_ResultBody::group() && aDoc == owner()->document()) {
 954         const TopoDS_Shape aConShape = aCont->shape()->impl<TopoDS_Shape>();
 955         if (!aConShape.IsNull()) {
 956           Handle(TNaming_NamedShape) aNS = TNaming_Tool::NamedShape(aConShape, selectionLabel());
 957           if (!aNS.IsNull()) {
 958             aNS = TNaming_Tool::CurrentNamedShape(aNS);
 959             if (!aNS.IsNull() && scope().Contains(aNS->Label())) { // scope check is for 2228
 960               TDF_Label aLab = aNS->Label();
 961               if (aLab.Depth() % 2 == 0)
 962                 aLab = aLab.Father();
 963               ObjectPtr anObj = aDoc->objects()->object(aLab);
 964               while(!anObj.get() && aLab.Depth() > 5) {
 965                 aLab = aLab.Father().Father();
 966                 anObj = aDoc->objects()->object(aLab);
 967               }
 968
 969               if (anObj.get()) {
 970                 ResultPtr aRes = std::dynamic_pointer_cast<ModelAPI_Result>(anObj);
 971                 if (aRes)
 972                   aCont = aRes;
 973               }
 974             }
 975           }
 976         }
 977       }
 978       // if compsolid is context, try to take sub-solid as context: like in GUI and scripts
 979       if (aCont.get() && aShapeToBeSelected.get()) {
 980         ResultBodyPtr aComp = std::dynamic_pointer_cast<ModelAPI_ResultBody>(aCont);
 981         if (aComp && aComp->numberOfSubs()) {
 982           std::list<ResultPtr> allSubs;
 983           ModelAPI_Tools::allSubs(aComp, allSubs);
 984           std::list<ResultPtr>::iterator aS = allSubs.begin();
 985           for(; aS != allSubs.end(); aS++) {
 986             ResultBodyPtr aSub = std::dynamic_pointer_cast<ModelAPI_ResultBody>(*aS);
 987             if (aSub && aSub->numberOfSubs() == 0 && aSub->shape().get() &&
 988                 aSub->shape()->isSubShape(aShapeToBeSelected)) {
 989               aCont = aSub;
 990               break;
 991             }
 992           }
 993         }
 994       }
 995       // try to find the latest active result that must be used instead of the selected
 996       // to set the active context (like in GUI selection), not concealed one
 997       bool aFindNewContext = true;
 998       while(aFindNewContext && aCont.get()) {
 999         aFindNewContext = false;
1000         // take references to all results: root one, any sub
1001         ResultBodyPtr aCompContext = ModelAPI_Tools::bodyOwner(aCont, true);
1002         std::list<ResultPtr> allRes;
1003         if (aCompContext.get()) {
1004           ModelAPI_Tools::allSubs(aCompContext, allRes);
1005           allRes.push_back(aCompContext);
1006         } else {
1007           allRes.push_back(aCont);
1008         }
1009         for(std::list<ResultPtr>::iterator aSub = allRes.begin(); aSub != allRes.end(); aSub++) {
1010           ResultPtr aResCont = *aSub;
1011           ResultBodyPtr aResBody = std::dynamic_pointer_cast<ModelAPI_ResultBody>(aResCont);
1012           // only lower and higher level subs are counted
1013           if (aResBody.get() && aResBody->numberOfSubs() > 0 && aResBody != aCompContext)
1014             continue;
1015           const std::set<AttributePtr>& aRefs = aResCont->data()->refsToMe();
1016           std::set<AttributePtr>::const_iterator aRef = aRefs.begin();
1017           for(; !aFindNewContext && aRef != aRefs.end(); aRef++) {
1018             if (!aRef->get() || !(*aRef)->owner().get())
1019               continue;
1020             // concealed attribute only
1021             FeaturePtr aRefFeat = std::dynamic_pointer_cast<ModelAPI_Feature>((*aRef)->owner());
1022             if (!ModelAPI_Session::get()->validators()->isConcealed(
1023               aRefFeat->getKind(), (*aRef)->id()))
1024               continue;
1025             // search the feature result that contains sub-shape selected
1026             std::list<std::shared_ptr<ModelAPI_Result> > aResults;
1027
1028             // take all sub-results or one result
1029             std::list<ResultPtr> aRefFeatResults;
1030             ModelAPI_Tools::allResults(aRefFeat, aRefFeatResults);
1031             std::list<ResultPtr>::iterator aRefResIter = aRefFeatResults.begin();
1032             for(; aRefResIter != aRefFeatResults.end(); aRefResIter++) {
1033               ResultBodyPtr aBody = std::dynamic_pointer_cast<ModelAPI_ResultBody>(*aRefResIter);
1034               if (aBody.get() && aBody->numberOfSubs() == 0) // add only lower level subs
1035                 aResults.push_back(aBody);
1036             }
1037             std::list<std::shared_ptr<ModelAPI_Result> >::iterator aResIter = aResults.begin();
1038             for(; aResIter != aResults.end(); aResIter++) {
1039               if (!aResIter->get() || !(*aResIter)->data()->isValid() || (*aResIter)->isDisabled())
1040                 continue;
1041               GeomShapePtr aShape = (*aResIter)->shape();
1042               GeomShapePtr aSelectedShape =
1043                 aShapeToBeSelected.get() ? aShapeToBeSelected : aCont->shape();
1044               if (aShape.get() && aShape->isSubShape(aSelectedShape, false)) {
1045                 aCont = *aResIter; // found new context (produced from this) with same subshape
1046                 aFindNewContext = true; // continue searching futher
1047                 break;
1048               }
1049             }
1050           }
1051         }
1052       }
1053
1054       if (aCenterType != NOT_CENTER) {
1055         if (!aShapeToBeSelected->isEdge())
1056           continue;
1057         std::shared_ptr<GeomAPI_Edge> aSelectedEdge(new GeomAPI_Edge(aShapeToBeSelected));
1058         setValueCenter(aCont, aSelectedEdge, aCenterType);
1059       } else
1060         setValue(aCont, aShapeToBeSelected);
1061       return;
1062     }
1063   }
1064
1065   TDF_Label aSelLab = selectionLabel();
1066   setInvalidIfFalse(aSelLab, false);
1067   reset();
1068 }
1069
1070 void Model_AttributeSelection::selectSubShape(const std::string& theType,
1071                                               const GeomPointPtr& thePoint)
1072 {
1073   if (theType.empty() || !thePoint)
1074     return;
1075
1076   int aSelectionIndex = 0;
1077   GeomAPI_Shape::ShapeType aType = GeomAPI_Shape::shapeTypeByStr(theType);
1078   if (aType == GeomAPI_Shape::SHAPE) {
1079     // possibly, the string consists of the type and the index,
1080     // thus, try to separate them
1081     size_t aUndersporePos = theType.find_first_of('_');
1082     if (aUndersporePos != std::string::npos)
1083       aType = GeomAPI_Shape::shapeTypeByStr(theType.substr(0, aUndersporePos));
1084
1085     if (aType != GeomAPI_Shape::SHAPE) {
1086       for (std::string::const_iterator aChar = theType.begin() + aUndersporePos + 1;
1087            aChar != theType.end(); ++aChar) {
1088         if (std::isdigit(*aChar))
1089           aSelectionIndex = aSelectionIndex * 10 + (*aChar - '0');
1090         else {
1091           aSelectionIndex = 1;
1092           break;
1093         }
1094       }
1095       aSelectionIndex -= 1;
1096     }
1097   }
1098   ResultPtr aFoundResult;
1099   GeomShapePtr aFoundSubShape;
1100   int aFoundCenterType;
1101
1102   // collect features from PartSet and the current part
1103   SessionPtr aSession = ModelAPI_Session::get();
1104   std::list<FeaturePtr> aFeatures = aSession->moduleDocument()->allFeatures();
1105   if (aSession->moduleDocument() != owner()->document()) {
1106     std::list<FeaturePtr> aPartFeatures = owner()->document()->allFeatures();
1107     aFeatures.insert(aFeatures.end(), aPartFeatures.begin(), aPartFeatures.end());
1108   }
1109   // Process results of all features from the last to the first
1110   // to find appropriate sub-shape
1111   for (std::list<FeaturePtr>::const_reverse_iterator anIt = aFeatures.rbegin();
1112        anIt != aFeatures.rend(); ++anIt) {
1113     // check the feature is a part of composite feature (like sketch elements),
1114     // then do not process it, it will be processed in scope of composite feature
1115     bool isSubOfComposite = false;
1116     const std::set<AttributePtr>& aRefs = (*anIt)->data()->refsToMe();
1117     for (std::set<AttributePtr>::const_iterator aRefIt = aRefs.begin();
1118          aRefIt != aRefs.end() && !isSubOfComposite; ++aRefIt) {
1119       FeaturePtr aFeature = ModelAPI_Feature::feature((*aRefIt)->owner());
1120       CompositeFeaturePtr aCompFeature =
1121           std::dynamic_pointer_cast<ModelAPI_CompositeFeature>(aFeature);
1122       isSubOfComposite = aCompFeature && aCompFeature->isSub(*anIt);
1123     }
1124     if (isSubOfComposite)
1125       continue;
1126
1127     // process results of the current feature to find appropriate sub-shape
1128     aFoundCenterType = (int)ModelAPI_AttributeSelection::NOT_CENTER;
1129     if (ModelGeomAlgo_Shape::findSubshapeByPoint(*anIt, thePoint, aType,
1130                                                  aFoundResult, aFoundSubShape, aFoundCenterType)) {
1131       if (aSelectionIndex > 0)
1132         --aSelectionIndex; // skip this shape, because one of the previous is selected
1133       else {
1134         if (aFoundCenterType == (int)ModelAPI_AttributeSelection::NOT_CENTER)
1135           setValue(aFoundResult, aFoundSubShape);
1136         else
1137           setValueCenter(aFoundResult, aFoundSubShape->edge(),
1138                          (ModelAPI_AttributeSelection::CenterType)aFoundCenterType);
1139         return;
1140       }
1141     }
1142   }
1143
1144   TDF_Label aSelLab = selectionLabel();
1145   setInvalidIfFalse(aSelLab, false);
1146   reset();
1147 }
1148
1149 int Model_AttributeSelection::Id()
1150 {
1151   int anID = 0;
1152   std::shared_ptr<GeomAPI_Shape> aSelection = value();
1153   ResultPtr aContextRes = context();
1154   // support for compsolids:
1155   while(ModelAPI_Tools::bodyOwner(aContextRes).get()) {
1156     aContextRes = ModelAPI_Tools::bodyOwner(aContextRes);
1157   }
1158   std::shared_ptr<GeomAPI_Shape> aContext = aContextRes->shape();
1159
1160
1161   TopoDS_Shape aMainShape = aContext->impl<TopoDS_Shape>();
1162   const TopoDS_Shape& aSubShape = aSelection->impl<TopoDS_Shape>();
1163   // searching for the latest main shape
1164   if (aSelection && !aSelection->isNull() && aContext && !aContext->isNull())
1165   {
1166     std::shared_ptr<Model_Document> aDoc =
1167       std::dynamic_pointer_cast<Model_Document>(context()->document());
1168     if (aDoc.get()) {
1169       Handle(TNaming_NamedShape) aNS = TNaming_Tool::NamedShape(aMainShape, aDoc->generalLabel());
1170       if (!aNS.IsNull()) {
1171         aMainShape = TNaming_Tool::CurrentShape(aNS);
1172       }
1173     }
1174
1175     TopTools_IndexedMapOfShape aSubShapesMap;
1176     TopExp::MapShapes(aMainShape, aSubShapesMap);
1177     anID = aSubShapesMap.FindIndex(aSubShape);
1178   }
1179   return anID;
1180 }
1181
1182 void Model_AttributeSelection::setId(int theID)
1183 {
1184   std::shared_ptr<GeomAPI_Shape> aSelection;
1185
1186   ResultPtr aContextRes = context();
1187   // support for compsolids:
1188   while(ModelAPI_Tools::bodyOwner(aContextRes).get()) {
1189     aContextRes = ModelAPI_Tools::bodyOwner(aContextRes);
1190   }
1191   std::shared_ptr<GeomAPI_Shape> aContext = aContextRes->shape();
1192
1193   TopoDS_Shape aMainShape = aContext->impl<TopoDS_Shape>();
1194   // searching for the latest main shape
1195   if (theID > 0 && aContext && !aContext->isNull())
1196   {
1197     std::shared_ptr<Model_Document> aDoc =
1198       std::dynamic_pointer_cast<Model_Document>(aContextRes->document());
1199     if (aDoc.get()) {
1200       Handle(TNaming_NamedShape) aNS = TNaming_Tool::NamedShape(aMainShape, aDoc->generalLabel());
1201       if (!aNS.IsNull()) {
1202         aMainShape = TNaming_Tool::CurrentShape(aNS);
1203       }
1204     }
1205
1206     TopTools_IndexedMapOfShape aSubShapesMap;
1207     TopExp::MapShapes(aMainShape, aSubShapesMap);
1208     const TopoDS_Shape& aSelShape = aSubShapesMap.FindKey(theID);
1209
1210     std::shared_ptr<GeomAPI_Shape> aResult(new GeomAPI_Shape);
1211     aResult->setImpl(new TopoDS_Shape(aSelShape));
1212
1213     aSelection = aResult;
1214   }
1215
1216   setValue(aContextRes, aSelection);
1217 }
1218
1219 std::string Model_AttributeSelection::contextName(const ResultPtr& theContext) const
1220 {
1221   std::string aResult;
1222   if (owner()->document() != theContext->document()) {
1223     if (theContext->document() == ModelAPI_Session::get()->moduleDocument()) {
1224       aResult = theContext->document()->kind() + "/";
1225     } else {
1226       ResultPtr aDocRes = ModelAPI_Tools::findPartResult(
1227         ModelAPI_Session::get()->moduleDocument(), theContext->document());
1228       if (aDocRes.get()) {
1229         aResult = aDocRes->data()->name() + "/";
1230       }
1231     }
1232   }
1233   aResult += theContext->data()->name();
1234   return aResult;
1235 }
1236
1237 void Model_AttributeSelection::computeValues(
1238   ResultPtr theOldContext, ResultPtr theNewContext, TopoDS_Shape theValShape,
1239   TopTools_ListOfShape& theShapes)
1240 {
1241   bool aWasWholeContext = theValShape.IsNull();
1242   if (aWasWholeContext) {
1243     //theShapes.Append(theValShape);
1244     //return;
1245     theValShape = theOldContext->shape()->impl<TopoDS_Shape>();
1246   }
1247   //TopoDS_Shape anOldContShape = theOldContext->shape()->impl<TopoDS_Shape>();
1248   TopoDS_Shape aNewContShape = theNewContext->shape()->impl<TopoDS_Shape>();
1249   //if (anOldContShape.IsSame(theValShape)) { // full context shape substituted by new full context
1250     //theShapes.Append(aNewContShape);
1251     //return;
1252   //}
1253   // if a new value is unchanged in the new context, do nothing: value is correct
1254   TopExp_Explorer aSubExp(aNewContShape, theValShape.ShapeType());
1255   for(; aSubExp.More(); aSubExp.Next()) {
1256     if (aSubExp.Current().IsSame(theValShape)) {
1257       theShapes.Append(theValShape);
1258       return;
1259     }
1260   }
1261   // if new context becomes compsolid, the resulting sub may be in sub-solids
1262   std::list<ResultPtr> aNewToIterate;
1263   aNewToIterate.push_back(theNewContext);
1264   ResultBodyPtr aComp = std::dynamic_pointer_cast<ModelAPI_ResultBody>(theNewContext);
1265   if (aComp.get()) {
1266     std::list<ResultPtr> allNewContextSubs;
1267     ModelAPI_Tools::allSubs(aComp, allNewContextSubs);
1268     std::list<ResultPtr>::iterator aSub = allNewContextSubs.begin();
1269     for(; aSub != allNewContextSubs.end(); aSub++) {
1270       ResultBodyPtr aBody = std::dynamic_pointer_cast<ModelAPI_ResultBody>(*aSub);
1271       if (aBody.get() && aBody->numberOfSubs() == 0) // add only lower level subs
1272         aNewToIterate.push_back(aBody);
1273     }
1274   }
1275
1276   // first iteration: searching for the whole shape appearance (like face of the box)
1277   // second iteration: searching for sub-shapes that contain the sub (like vertex on faces)
1278   int aToFindPart = 0;
1279   TopTools_DataMapOfShapeShape aNewToOld; // map from new containers to old containers (with val)
1280   TopTools_MapOfShape anOlds; // to know how many olds produced new containers
1281   for(; aToFindPart != 2 && theShapes.IsEmpty(); aToFindPart++) {
1282     std::list<ResultPtr>::iterator aNewContIter = aNewToIterate.begin();
1283     for(; aNewContIter != aNewToIterate.end(); aNewContIter++) {
1284       std::shared_ptr<Model_Data> aNewData =
1285         std::dynamic_pointer_cast<Model_Data>((*aNewContIter)->data());
1286       TDF_Label aNewLab = aNewData->label();
1287       // searching for produced sub-shape fully on some label
1288       TDF_ChildIDIterator aNSIter(aNewLab, TNaming_NamedShape::GetID(), Standard_True);
1289       for(; aNSIter.More(); aNSIter.Next()) {
1290         Handle(TNaming_NamedShape) aNS = Handle(TNaming_NamedShape)::DownCast(aNSIter.Value());
1291         for(TNaming_Iterator aPairIter(aNS); aPairIter.More(); aPairIter.Next()) {
1292           if (aToFindPart == 0) { // search shape is fully inside
1293             if (aPairIter.OldShape().IsSame(theValShape)) {
1294               if (aPairIter.NewShape().IsNull()) {// value was removed
1295                 theShapes.Clear();
1296                 return;
1297               }
1298               theShapes.Append(aPairIter.NewShape());
1299             }
1300           } else if (!aPairIter.OldShape().IsNull()) { // search shape that contains this sub
1301             TopExp_Explorer anExp(aPairIter.OldShape(), theValShape.ShapeType());
1302             for(; anExp.More(); anExp.Next()) {
1303               if (anExp.Current().IsSame(theValShape)) { // found a new container
1304                 if (aPairIter.NewShape().IsNull()) {// value was removed
1305                   theShapes.Clear();
1306                   return;
1307                 }
1308                 aNewToOld.Bind(aPairIter.NewShape(), aPairIter.OldShape());
1309                 anOlds.Add(aPairIter.OldShape());
1310                 break;
1311               }
1312             }
1313           }
1314         }
1315       }
1316     }
1317   }
1318   if (aToFindPart == 2 && !aNewToOld.IsEmpty()) {
1319     // map of sub-shapes -> number of occurences of these shapes in containers
1320     NCollection_DataMap<TopoDS_Shape, TopTools_MapOfShape, TopTools_ShapeMapHasher> aSubs;
1321     TopTools_DataMapOfShapeShape::Iterator aContIter(aNewToOld);
1322     for(; aContIter.More(); aContIter.Next()) {
1323       TopExp_Explorer aSubExp(aContIter.Key(), theValShape.ShapeType());
1324       for(; aSubExp.More(); aSubExp.Next()) {
1325         if (!aSubs.IsBound(aSubExp.Current())) {
1326           aSubs.Bind(aSubExp.Current(), TopTools_MapOfShape());
1327         }
1328         // store old to know how many olds produced this shape
1329         aSubs.ChangeFind(aSubExp.Current()).Add(aContIter.Value());
1330       }
1331     }
1332     // if sub is appeared same times in containers as the number of old shapes that contain it
1333     int aCountInOld = anOlds.Size();
1334     NCollection_DataMap<TopoDS_Shape, TopTools_MapOfShape, TopTools_ShapeMapHasher>::Iterator
1335       aSubsIter(aSubs);
1336     for(; aSubsIter.More(); aSubsIter.Next()) {
1337       if (aSubsIter.Value().Size() == aCountInOld) {
1338         theShapes.Append(aSubsIter.Key());
1339       }
1340     }
1341   }
1342   if (theShapes.IsEmpty()) { // nothing was changed
1343     theShapes.Append(aWasWholeContext ? TopoDS_Shape() : theValShape);
1344   }
1345 }
1346
1347 bool Model_AttributeSelection::searchNewContext(std::shared_ptr<Model_Document> theDoc,
1348   const TopoDS_Shape theContShape, ResultPtr theContext, TopoDS_Shape theValShape,
1349   TDF_Label theAccessLabel,
1350   std::list<ResultPtr>& theResults, TopTools_ListOfShape& theValShapes)
1351 {
1352   std::set<ResultPtr> aResults; // to avoid duplicates, new context, null if deleted
1353   TopTools_ListOfShape aResContShapes;
1354   // iterate context and shape, but also if it is sub-shape of main shape, check also it
1355   TopTools_ListOfShape aContextList;
1356   aContextList.Append(theContShape);
1357   if (theContext.get()) {
1358     ResultPtr aComposite = ModelAPI_Tools::bodyOwner(theContext);
1359     if (aComposite.get() && aComposite->shape().get() && !aComposite->shape()->isNull())
1360       aContextList.Append(aComposite->shape()->impl<TopoDS_Shape>());
1361   }
1362   for(TopTools_ListOfShape::Iterator aContIter(aContextList); aContIter.More(); aContIter.Next()) {
1363     TNaming_SameShapeIterator aModifIter(aContIter.ChangeValue(), theAccessLabel);
1364     for(; aModifIter.More(); aModifIter.Next()) {
1365       TDF_Label anObjLab = aModifIter.Label().Father();
1366       ResultPtr aModifierObj = std::dynamic_pointer_cast<ModelAPI_Result>
1367         (theDoc->objects()->object(anObjLab));
1368       if (!aModifierObj.get()) {
1369         // #2241: shape may be sub-element of new object, not main (shell created from faces)
1370         if (!anObjLab.IsRoot())
1371           aModifierObj = std::dynamic_pointer_cast<ModelAPI_Result>
1372           (theDoc->objects()->object(anObjLab.Father()));
1373         if (!aModifierObj.get())
1374           continue;
1375       }
1376       FeaturePtr aModifierFeat = theDoc->feature(aModifierObj);
1377       if (!aModifierFeat.get())
1378         continue;
1379       FeaturePtr aThisFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(owner());
1380       if (aModifierFeat == aThisFeature || theDoc->objects()->isLater(aModifierFeat, aThisFeature))
1381         continue; // the modifier feature is later than this, so, should not be used
1382       FeaturePtr aCurrentModifierFeat = theDoc->feature(theContext);
1383       if (aCurrentModifierFeat == aModifierFeat ||
1384         theDoc->objects()->isLater(aCurrentModifierFeat, aModifierFeat))
1385         continue; // the current modifier is later than the found, so, useless
1386       Handle(TNaming_NamedShape) aNewNS;
1387       aModifIter.Label().FindAttribute(TNaming_NamedShape::GetID(), aNewNS);
1388       if (aNewNS->Evolution() == TNaming_MODIFY || aNewNS->Evolution() == TNaming_GENERATED) {
1389         aResults.insert(aModifierObj);
1390         //TNaming_Iterator aPairIter(aNewNS);
1391         //aResContShapes.Append(aPairIter.NewShape());
1392         aResContShapes.Append(aModifierObj->shape()->impl<TopoDS_Shape>());
1393       } else if (aNewNS->Evolution() == TNaming_DELETE) { // a shape was deleted => result is empty
1394         aResults.insert(ResultPtr());
1395       } else { // not-precessed modification => don't support it
1396         continue;
1397       }
1398     }
1399   }
1400   if (aResults.empty())
1401     return false; // no modifications found, must stay the same
1402   // iterate all results to find futher modifications
1403   std::set<ResultPtr>::iterator aResIter = aResults.begin();
1404   for(; aResIter != aResults.end(); aResIter++) {
1405     if (aResIter->get() != NULL) {
1406       // compute new values by two contextes: the old and the new
1407       TopTools_ListOfShape aValShapes;
1408       computeValues(theContext, *aResIter, theValShape, aValShapes);
1409
1410       TopTools_ListIteratorOfListOfShape aNewVal(aValShapes);
1411       for(; aNewVal.More(); aNewVal.Next()) {
1412         std::list<ResultPtr> aNewRes;
1413         TopTools_ListOfShape aNewUpdatedVal;
1414         TopoDS_Shape aNewValSh = aNewVal.Value();
1415         TopoDS_Shape aNewContShape = (*aResIter)->shape()->impl<TopoDS_Shape>();
1416         if (theValShape.IsNull() && aNewContShape.IsSame(aNewValSh))
1417           aNewValSh.Nullify();
1418         if (searchNewContext(theDoc, aNewContShape, *aResIter, aNewValSh,
1419                              theAccessLabel, aNewRes, aNewUpdatedVal))
1420         {
1421           // appeand new results instead of the current ones
1422           std::list<ResultPtr>::iterator aNewIter = aNewRes.begin();
1423           TopTools_ListIteratorOfListOfShape aNewUpdVal(aNewUpdatedVal);
1424           for(; aNewIter != aNewRes.end(); aNewIter++, aNewUpdVal.Next()) {
1425             theResults.push_back(*aNewIter);
1426             theValShapes.Append(aNewUpdVal.Value());
1427           }
1428         } else { // the current result is good
1429           theResults.push_back(*aResIter);
1430           theValShapes.Append(aNewValSh);
1431         }
1432       }
1433     }
1434   }
1435   return true; // theResults must be empty: everything is deleted
1436 }
1437
1438 void Model_AttributeSelection::updateInHistory()
1439 {
1440   ResultPtr aContext = std::dynamic_pointer_cast<ModelAPI_Result>(myRef.value());
1441   // only bodies and parts may be modified later in the history, don't do anything otherwise
1442   if (!aContext.get() || (aContext->groupName() != ModelAPI_ResultBody::group() &&
1443       aContext->groupName() != ModelAPI_ResultPart::group()))
1444     return;
1445   std::shared_ptr<Model_Document> aDoc =
1446     std::dynamic_pointer_cast<Model_Document>(aContext->document());
1447   std::shared_ptr<Model_Data> aContData = std::dynamic_pointer_cast<Model_Data>(aContext->data());
1448   if (!aContData.get() || !aContData->isValid())
1449     return;
1450   TDF_Label aContLab = aContData->label(); // named shape where the selected context is located
1451   Handle(TNaming_NamedShape) aContNS;
1452   if (!aContLab.FindAttribute(TNaming_NamedShape::GetID(), aContNS)) {
1453     bool aFoundNewContext = true;
1454     ResultPtr aNewContext = aContext;
1455     while(aFoundNewContext) {
1456       aFoundNewContext = false;
1457       // parts have no shape in result, so, trace references using the Part info
1458       if (aNewContext->groupName() == ModelAPI_ResultPart::group()) {
1459         ResultPartPtr aPartContext = std::dynamic_pointer_cast<ModelAPI_ResultPart>(aNewContext);
1460         if (aPartContext.get()) { // searching for the up to date references to the referenced cont
1461           const std::set<AttributePtr>& aRefs = aPartContext->data()->refsToMe();
1462           std::set<AttributePtr>::const_iterator aRef = aRefs.begin();
1463           for(; aRef != aRefs.end(); aRef++) {
1464             // to avoid detection of part changes by local selection only
1465             AttributeSelectionPtr aSel =
1466               std::dynamic_pointer_cast<ModelAPI_AttributeSelection>(*aRef);
1467             if (aSel.get() && !aSel->value()->isSame(aSel->context()->shape()))
1468               continue;
1469
1470             FeaturePtr aRefFeat = std::dynamic_pointer_cast<ModelAPI_Feature>((*aRef)->owner());
1471             if (aRefFeat.get() && aRefFeat != owner()) {
1472               FeaturePtr aThisFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(owner());
1473               if (aDoc->objects()->isLater(aThisFeature, aRefFeat)) { // found better feature
1474                 aFoundNewContext = true;
1475                 aNewContext = aRefFeat->firstResult();
1476               }
1477             }
1478           }
1479         }
1480       }
1481     }
1482     if (aNewContext != aContext) {
1483       setValue(aNewContext, value());
1484     }
1485     return;
1486   }
1487   FeaturePtr aThisFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(owner());
1488   FeaturePtr aCurrentModifierFeat = aDoc->feature(aContext);
1489   // iterate the context shape modifications in order to find a feature that is upper in history
1490   // that this one and is really modifies the referenced result to refer to it
1491   ResultPtr aModifierResFound;
1492   TNaming_Iterator aPairIter(aContNS);
1493   if (!aPairIter.More())
1494     return;
1495   TopoDS_Shape aNewCShape = aPairIter.NewShape();
1496   bool anIterate = true;
1497   // trying to update also the sub-shape selected
1498   GeomShapePtr aSubShape = value();
1499   if (aSubShape.get() && aSubShape->isEqual(aContext->shape()))
1500     aSubShape.reset();
1501   TopoDS_Shape aValShape;
1502   if (aSubShape.get()) {
1503     aValShape = aSubShape->impl<TopoDS_Shape>();
1504   }
1505
1506   std::list<ResultPtr> aNewContexts;
1507   TopTools_ListOfShape aValShapes;
1508   if (searchNewContext(aDoc, aNewCShape, aContext, aValShape, aContLab, aNewContexts, aValShapes))
1509   {
1510     // update scope to reset to a new one
1511     myScope.Clear();
1512
1513     std::list<ResultPtr>::iterator aNewCont = aNewContexts.begin();
1514     TopTools_ListIteratorOfListOfShape aNewValues(aValShapes);
1515     if (aNewCont == aNewContexts.end()) { // all results were deleted
1516       ResultPtr anEmptyContext;
1517       std::shared_ptr<GeomAPI_Shape> anEmptyShape;
1518       setValue(anEmptyContext, anEmptyShape); // nullify the selection
1519       return;
1520     }
1521
1522     GeomShapePtr aValueShape;
1523     if (!aNewValues.Value().IsNull()) {
1524       aValueShape = std::make_shared<GeomAPI_Shape>();
1525       aValueShape->setImpl<TopoDS_Shape>(new TopoDS_Shape(aNewValues.Value()));
1526     }
1527     setValue(*aNewCont, aValueShape);
1528     // if there are more than one result, put them by "append" into "parent" list
1529     if (myParent) {
1530       for(aNewCont++, aNewValues.Next(); aNewCont != aNewContexts.end();
1531           aNewCont++, aNewValues.Next()) {
1532         GeomShapePtr aValueShape;
1533         if (!aNewValues.Value().IsNull()) {
1534           aValueShape = std::make_shared<GeomAPI_Shape>();
1535           aValueShape->setImpl<TopoDS_Shape>(new TopoDS_Shape(aNewValues.Value()));
1536         }
1537
1538         // Check that list has the same type of shape selection before adding.
1539         GeomAPI_Shape::ShapeType aListShapeType = GeomAPI_Shape::SHAPE;
1540         if (myParent->selectionType() == "VERTEX") aListShapeType = GeomAPI_Shape::VERTEX;
1541         else if (myParent->selectionType() == "EDGE") aListShapeType = GeomAPI_Shape::EDGE;
1542         else if (myParent->selectionType() == "FACE") aListShapeType = GeomAPI_Shape::FACE;
1543
1544         GeomAPI_Shape::ShapeType aShapeShapeType = GeomAPI_Shape::SHAPE;
1545         if (aValueShape.get()) {
1546           aShapeShapeType = aValueShape->shapeType();
1547         } else {
1548           (*aNewCont)->shape()->shapeType();
1549         }
1550
1551         if (aListShapeType != GeomAPI_Shape::SHAPE && aListShapeType != aShapeShapeType) {
1552           continue;
1553         }
1554
1555         myParent->append(*aNewCont, aValueShape);
1556       }
1557     }
1558   }
1559 }
1560
1561 void Model_AttributeSelection::setParent(Model_AttributeSelectionList* theParent)
1562 {
1563   myParent = theParent;
1564 }