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Feature selector widget for recover feature.
[modules/shaper.git] / src / FeaturesPlugin / FeaturesPlugin_Validators.cpp
index 37d03e3a9476a17a8a9406e106dd921346da2b95..18b4be1accbefc2876e2b435a89fd4a54c5201c0 100644 (file)
-// Copyright (C) 2014-20xx CEA/DEN, EDF R&D -->
-
-// File:        FeaturesPlugin_Validators.cpp
-// Created:     22 March 2016
-// Author:      Dmitry Bobylev
-
-#include "FeaturesPlugin_Validators.h"
-
-#include <ModelAPI_Attribute.h>
-#include <ModelAPI_AttributeInteger.h>
-#include <ModelAPI_AttributeSelectionList.h>
-#include <ModelAPI_AttributeString.h>
-#include <ModelAPI_AttributeReference.h>
-#include <ModelAPI_Feature.h>
-#include <ModelAPI_ResultConstruction.h>
-
-#include <Events_Error.h>
-
-#include <GeomValidators_FeatureKind.h>
-#include <GeomValidators_ShapeType.h>
-
-#include <GeomAPI_DataMapOfShapeShape.h>
-#include <GeomAPI_PlanarEdges.h>
-#include <GeomAPI_ShapeExplorer.h>
-#include <GeomAlgoAPI_WireBuilder.h>
-
-//==================================================================================================
-bool FeaturesPlugin_ValidatorPipeLocations::isValid(const std::shared_ptr<ModelAPI_Feature>& theFeature,
-                                                    const std::list<std::string>& theArguments,
-                                                    std::string& theError) const
-{
-  static const std::string aCreationMethodID = "creation_method";
-  static const std::string aBaseObjectsID = "base_objects";
-  static const std::string aLocationsID = "locations_objects";
-
-  if(theFeature->getKind() != "Pipe") {
-    theError = "Feature \"" + theFeature->getKind() + "\" does not supported by this validator.";
-    return false;
-  }
-
-  AttributeStringPtr aCreationMethodAttr = theFeature->string(aCreationMethodID);
-  if(!aCreationMethodAttr.get()) {
-    theError = "Could not get \"" + aCreationMethodID + "\" attribute.";
-    return false;
-  }
-
-  if(aCreationMethodAttr->value() != "locations") {
-    return true;
-  }
-
-  AttributeSelectionListPtr aBaseObjectsSelectionList = theFeature->selectionList(aBaseObjectsID);
-  if(!aBaseObjectsSelectionList.get()) {
-    theError = "Could not get \"" + aBaseObjectsID + "\" attribute.";
-    return false;
-  }
-
-  AttributeSelectionListPtr aLocationsSelectionList = theFeature->selectionList(aLocationsID);
-  if(!aLocationsSelectionList.get()) {
-    theError = "Could not get \"" + aBaseObjectsID + "\" attribute.";
-    return false;
-  }
-
-  if(aLocationsSelectionList->size() > 0 && aLocationsSelectionList->size() != aBaseObjectsSelectionList->size()) {
-    theError = "Number of locations should be the same as base objects.";
-    return false;
-  }
-
-  return true;
-}
-
-//==================================================================================================
-bool FeaturesPlugin_ValidatorPipeLocations::isNotObligatory(std::string theFeature, std::string theAttribute)
-{
-  return false;
-}
-
-//==================================================================================================
-bool FeaturesPlugin_ValidatorBaseForGeneration::isValid(const AttributePtr& theAttribute,
-                                                        const std::list<std::string>& theArguments,
-                                                        std::string& theError) const
-{
-  if(theArguments.empty()) {
-    theError = "Validator parameters is empty.";
-    return false;
-  }
-
-  // Checking attribute.
-  if(!isValidAttribute(theAttribute, theArguments, theError)) {
-    if(theError.empty()) {
-      theError = "Attribute contains unacceptable shape.";
-    }
-    return false;
-  }
-
-  std::set<ResultConstructionPtr> aSelectedSketches;
-  std::set<ResultConstructionPtr> aSelectedSketchesFromObjects;
-  GeomAPI_DataMapOfShapeShape aSelectedWiresFromObjects;
-  std::string anAttributeType = theAttribute->attributeType();
-  if(anAttributeType == ModelAPI_AttributeSelectionList::typeId()) {
-    AttributeSelectionListPtr aListAttr = std::dynamic_pointer_cast<ModelAPI_AttributeSelectionList>(theAttribute);
-    for(int anIndex = 0; anIndex < aListAttr->size(); ++anIndex) {
-      AttributeSelectionPtr aSelectionAttr = aListAttr->value(anIndex);
-      ResultConstructionPtr aContext = std::dynamic_pointer_cast<ModelAPI_ResultConstruction>(aSelectionAttr->context());
-      if(!aContext.get()) {
-        // It is not a result construction, continue.
-        continue;
-      }
-
-      GeomShapePtr aShape = aSelectionAttr->value();
-      GeomShapePtr aContextShape = aContext->shape();
-      if(!aShape.get()) {
-        // Whole sketch selected.
-        if(aSelectedSketchesFromObjects.find(aContext) != aSelectedSketchesFromObjects.cend()) {
-          theError = "Object from this sketch is already selected. Sketch is not allowed for selection.";
-          return false;
-        }
-
-        aSelectedSketches.insert(aContext);
-      } else {
-        // Object from sketch selected.
-        if(aSelectedSketches.find(aContext) != aSelectedSketches.cend()) {
-          theError = "Whole sketch with this object is already selected. Don't allow to select this object.";
-          return false;
-        }
-
-        for(GeomAPI_ShapeExplorer anExp(aShape, GeomAPI_Shape::WIRE); anExp.more(); anExp.next()) {
-          GeomShapePtr aWire = anExp.current();
-          if(aWire->orientation() != GeomAPI_Shape::FORWARD) {
-            theError = "Wire with wrong orientation selected.";
-            return false;
-          }
-
-          if(aSelectedWiresFromObjects.isBound(aWire)) {
-            theError = "Objects with such wire already selected. Don't allow to select this object.";
-            return false;
-          }
-
-          aSelectedWiresFromObjects.bind(aWire, aWire);
-          aSelectedSketchesFromObjects.insert(aContext);
-        }
-      }
-    }
-  }
-
-  return true;
-}
-
-//==================================================================================================
-bool FeaturesPlugin_ValidatorBaseForGeneration::isValidAttribute(const AttributePtr& theAttribute,
-                                                                 const std::list<std::string>& theArguments,
-                                                                 std::string& theError) const
-{
-  if(!theAttribute.get()) {
-    theError = "Empty attribute.";
-    return false;
-  }
-
-  std::string anAttributeType = theAttribute->attributeType();
-  if(anAttributeType == ModelAPI_AttributeSelectionList::typeId()) {
-    AttributeSelectionListPtr aListAttr = std::dynamic_pointer_cast<ModelAPI_AttributeSelectionList>(theAttribute);
-    for(int anIndex = 0; anIndex < aListAttr->size(); ++anIndex) {
-      // If at least one attribute is invalid, the result is false.
-      if(!isValidAttribute(aListAttr->value(anIndex), theArguments, theError)) {
-        return false;
-      }
-    }
-  } else if(anAttributeType == ModelAPI_AttributeSelection::typeId()) {
-    // Getting context.
-    AttributeSelectionPtr anAttr = std::dynamic_pointer_cast<ModelAPI_AttributeSelection>(theAttribute);
-    ResultPtr aContext = anAttr->context();
-    if(!aContext.get()) {
-      theError = "Attribute have empty context.";
-      return false;
-    }
-
-    GeomShapePtr aShape = anAttr->value();
-    GeomShapePtr aContextShape = aContext->shape();
-    if(!aShape.get()) {
-      aShape = aContextShape;
-    }
-    if(!aShape.get()) {
-      theError = "Empty shape selected";
-      return false;
-    }
-
-    ResultConstructionPtr aConstruction = std::dynamic_pointer_cast<ModelAPI_ResultConstruction>(aContext);
-    if(aConstruction.get()) {
-      // Construciotn selected. Check that is is not infinite.
-      if(aConstruction->isInfinite()) {
-        theError = "Infinite constructions is not allowed as base.";
-        return false;
-      }
-
-      if(aShape->isEqual(aContextShape)) {
-        // Whole construction selected. Check that it have faces.
-        if(aConstruction->facesNum() > 0) {
-          return true;
-        }
-      } else {
-        // Shape on construction selected. Check that it is a face or wire.
-        if(aShape->shapeType() == GeomAPI_Shape::WIRE || aShape->shapeType() == GeomAPI_Shape::FACE) {
-          return true;
-        }
-      }
-
-      return false;
-    }
-
-    if(!aShape->isEqual(aContextShape)) {
-      // Local selection on body does not allowed.
-      theError = "Selected shape is in the local selection. Only global selection is allowed.";
-      return false;
-    }
-
-    // Check that object is a shape with allowed type.
-    GeomValidators_ShapeType aShapeTypeValidator;
-    if(!aShapeTypeValidator.isValid(anAttr, theArguments, theError)) {
-      theError = "Selected shape has unacceptable type. Acceptable types are: faces or wires on sketch, "
-                 "whole sketch(if it has at least one face), and whole objects with shape types: ";
-      std::list<std::string>::const_iterator anIt = theArguments.cbegin();
-      theError += *anIt;
-      for(++anIt; anIt != theArguments.cend(); ++anIt) {
-        theError += ", " + *anIt;
-      }
-      return false;
-    }
-
-  } else {
-    theError = "Following attribute does not supported: " + anAttributeType + ".";
-    return false;
-  }
-
-  return true;
-}
-
-//==================================================================================================
-bool FeaturesPlugin_ValidatorCompositeLauncher::isValid(const AttributePtr& theAttribute,
-                                                        const std::list<std::string>& theArguments,
-                                                        std::string& theError) const
-{
-  if (theAttribute->attributeType() != ModelAPI_AttributeReference::typeId()) {
-    theError = "The attribute with the " + theAttribute->attributeType() + " type is not processed";
-    return false;
-  }
-  if (theArguments.size() != 2) {
-    theError = "Wrong parameters in XML definition for " + theAttribute->attributeType() + " type";
-    return false;
-  }
-  // first argument is for the base attribute, second - for skipping feature kind
-  std::list<std::string>::const_iterator anIt = theArguments.begin();
-  std::string aBaseAttributeId = *anIt;
-  FeaturePtr aFeature = ModelAPI_Feature::feature(theAttribute->owner());
-  AttributePtr aBaseAttribute = aFeature->attribute(aBaseAttributeId);
-  if (!aBaseAttribute.get()) {
-    theError = "Wrong parameters in XML definition for " + theAttribute->attributeType() + " type";
-    return false;
-  }
-  if (aBaseAttribute->isInitialized()) // when base list of composite feature is already filled,
-    // this validator is not necessary anymore
-    return true;
-
-  anIt++;
-  std::string aFeatureAttributeKind = *anIt;
-  GeomValidators_FeatureKind* aValidator = new GeomValidators_FeatureKind();
-  // check whether the selection is on the sketch
-  std::list<std::string> anArguments;
-  anArguments.push_back(aFeatureAttributeKind);
-
-  bool aFeatureKind = aValidator->isValid(theAttribute, theArguments, theError);
-  bool aPlanarFace = false;
-  // check if selection has Face selected
-  GeomValidators_ShapeType* aShapeType = new GeomValidators_ShapeType();
-  anArguments.clear();
-  anArguments.push_back("face");
-  aPlanarFace = aShapeType->isValid(theAttribute, anArguments, theError);
-
-  bool aValid = !aFeatureKind && aPlanarFace;
-  return aValid;
-}
-
-//==================================================================================================
-bool FeaturesPlugin_ValidatorCanBeEmpty::isValid(const std::shared_ptr<ModelAPI_Feature>& theFeature,
-                                                 const std::list<std::string>& theArguments,
-                                                 std::string& theError) const
-{
-  if(theArguments.size() != 2) {
-    theError = "Validator should be used with 2 parameters for extrusion.";
-    return false;
-  }
-
-  std::list<std::string>::const_iterator anArgsIt = theArguments.begin(), aLast = theArguments.end();
-
-  AttributePtr aCheckAttribute = theFeature->attribute(*anArgsIt);
-  ++anArgsIt;
-
-  if(isShapesCanBeEmpty(aCheckAttribute, theError)) {
-    return true;
-  }
-
-  AttributeSelectionPtr aSelAttr = theFeature->selection(*anArgsIt);
-  if(!aSelAttr.get()) {
-    theError = "Could not get selection attribute \"" + *anArgsIt + "\".";
-    return false;
-  }
-
-  GeomShapePtr aShape = aSelAttr->value();
-  if(!aShape.get()) {
-    ResultPtr aContext = aSelAttr->context();
-    if(!aContext.get()) {
-      theError = "Base objects list contains vertex or edge, so attribute \"" + *anArgsIt
-               + "\" can not be used with default value. Select direction for extrusion.";
-      return false;
-    }
-
-    aShape = aContext->shape();
-  }
-
-  if(!aShape.get()) {
-    theError = "Base objects list contains vertex or edge, so attribute \"" + *anArgsIt
-              + "\" can not be used with default value. Select direction for extrusion.";
-    return false;
-  }
-
-  return true;
-}
-
-//==================================================================================================
-bool FeaturesPlugin_ValidatorCanBeEmpty::isNotObligatory(std::string theFeature, std::string theAttribute)
-{
-  return false;
-}
-
-//==================================================================================================
-bool FeaturesPlugin_ValidatorCanBeEmpty::isShapesCanBeEmpty(const AttributePtr& theAttribute,
-                                                            std::string& theError) const
-{
-  if(!theAttribute.get()) {
-    return true;
-  }
-
-  std::string anAttributeType = theAttribute->attributeType();
-  if(anAttributeType == ModelAPI_AttributeSelectionList::typeId()) {
-    AttributeSelectionListPtr aListAttr = std::dynamic_pointer_cast<ModelAPI_AttributeSelectionList>(theAttribute);
-    for(int anIndex = 0; anIndex < aListAttr->size(); ++anIndex) {
-      // If at least one attribute is invalid, the result is false.
-      if(!isShapesCanBeEmpty(aListAttr->value(anIndex), theError)) {
-        return false;
-      }
-    }
-  } else if(anAttributeType == ModelAPI_AttributeSelection::typeId()) {
-    // Getting context.
-    AttributeSelectionPtr anAttr = std::dynamic_pointer_cast<ModelAPI_AttributeSelection>(theAttribute);
-    ResultPtr aContext = anAttr->context();
-    if(!aContext.get()) {
-      return false;
-    }
-
-    GeomShapePtr aShape = anAttr->value();
-    GeomShapePtr aContextShape = aContext->shape();
-    if(!aShape.get()) {
-      aShape = aContextShape;
-    }
-    if(!aShape.get()) {
-      return false;
-    }
-
-    if(aShape->shapeType() == GeomAPI_Shape::VERTEX ||
-       aShape->shapeType() == GeomAPI_Shape::EDGE ||
-       !aShape->isPlanar()) {
-      return false;
-    }
-  } else {
-    return false;
-  }
-
-  return true;
-}
-
-//==================================================================================================
-bool FeaturesPlugin_ValidatorBaseForWire::isValid(const AttributePtr& theAttribute,
-                                                  const std::list<std::string>& theArguments,
-                                                  std::string& theError) const
-{
-  // Get base objects list.
-  if(theAttribute->attributeType() != ModelAPI_AttributeSelectionList::typeId()) {
-    Events_Error::send("Validator does not support attribute type \"" + theAttribute->attributeType()
-      + "\"\n Only \"" + ModelAPI_AttributeSelectionList::typeId() + "\" supported.");
-    return false;
-  }
-  AttributeSelectionListPtr aSelectionList = std::dynamic_pointer_cast<ModelAPI_AttributeSelectionList>(theAttribute);
-  if(!aSelectionList.get()) {
-    theError = "Could not get selection list.";
-    return false;
-  }
-  if(aSelectionList->size() == 0) {
-    theError = "Empty selection list.";
-    return false;
-  }
-
-  // Collect base shapes.
-  ListOfShape aListOfShapes;
-  for(int anIndex = 0; anIndex < aSelectionList->size(); ++anIndex) {
-    AttributeSelectionPtr aSelection = aSelectionList->value(anIndex);
-    if(!aSelection.get()) {
-      theError = "Could not get selection.";
-      return false;
-    }
-    ResultPtr aContext = aSelection->context();
-    if(!aContext.get()) {
-      theError = "Attribute have empty context.";
-      return false;
-    }
-
-    GeomShapePtr aShape = aSelection->value();
-    GeomShapePtr aContextShape = aContext->shape();
-    if(!aShape.get()) {
-      aShape = aContextShape;
-    }
-    if(!aShape.get()) {
-      theError = "Empty shape selected.";
-      return false;
-    }
-
-    // Check that shape has acceptable type.
-    if(aShape->shapeType() != GeomAPI_Shape::EDGE && aShape->shapeType() != GeomAPI_Shape::WIRE) {
-      theError = "Selected shape has wrong type. Only edges and wires acceptable.";
-      return false;
-    }
-
-    // Check that it is edge on sketch.
-    ResultConstructionPtr aConstruction = std::dynamic_pointer_cast<ModelAPI_ResultConstruction>(aContext);
-    if(aConstruction.get()) {
-      if(aConstruction->isInfinite()) {
-        theError = "Inifinte objects not acceptable.";
-        return false;
-      }
-
-      std::shared_ptr<GeomAPI_PlanarEdges> anEdges = std::dynamic_pointer_cast<GeomAPI_PlanarEdges>(aContextShape);
-      if(!anEdges.get()) {
-        // It is not an edge on the sketch.
-        // Check that it is not local selection.
-        if(!aShape->isEqual(aContextShape)) {
-          // Local selection on body does not allowed.
-          theError = "Selected shape is in the local selection. Only global selection is allowed.";
-          return false;
-        }
-      }
-    }
-
-    aListOfShapes.push_back(aShape);
-  }
-
-  // Create wire.
-  GeomShapePtr aWire = GeomAlgoAPI_WireBuilder::wire(aListOfShapes);
-  if(!aWire.get()) {
-    theError = "Result wire empty. Probably it has disconnected edges or non-manifold.";
-    return false;
-  }
-
-  return true;
-}
-
-//==================================================================================================
-bool FeaturesPlugin_BooleanSelection::isValid(const AttributePtr& theAttribute,
-                                              const std::list<std::string>& theArguments,
-                                              std::string& theError) const
-{
-  AttributeSelectionListPtr anAttrSelectionList = std::dynamic_pointer_cast<ModelAPI_AttributeSelectionList>(theAttribute);
-  if(!anAttrSelectionList.get()) {
-    theError = "Error: this validator can only work with selection list attributes in Boolean feature.";
-    return false;
-  }
-  FeaturePtr aFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());
-  int anOperationType = aFeature->integer("bool_type")->value();
-
-  for(int anIndex = 0; anIndex < anAttrSelectionList->size(); ++anIndex) {
-    AttributeSelectionPtr anAttrSelection = anAttrSelectionList->value(anIndex);
-    if(!anAttrSelection.get()) {
-      theError = "Error: empty attribute selection.";
-      return false;
-    }
-    ResultPtr aContext = anAttrSelection->context();
-    if(!aContext.get()) {
-      theError = "Error: empty selection context.";
-      return false;
-    }
-    ResultConstructionPtr aResultConstruction =
-      std::dynamic_pointer_cast<ModelAPI_ResultConstruction>(aContext);
-    if(aResultConstruction.get()) {
-      theError = "Error: Result construction not allowed for selection.";
-      return false;
-    }
-    std::shared_ptr<GeomAPI_Shape> aShape = anAttrSelection->value();
-    if(!aShape.get()) {
-      aShape = aContext->shape();
-    }
-    if(!aShape.get()) {
-      theError = "Error: empty shape.";
-      return false;
-    }
-    int aShapeType = aShape->shapeType();
-    if(anOperationType == 1) {
-      // Fuse operation. Allow to select edges, faces and solids.
-      if(aShapeType != GeomAPI_Shape::EDGE &&
-         aShapeType != GeomAPI_Shape::FACE &&
-         aShapeType != GeomAPI_Shape::SOLID &&
-         aShapeType != GeomAPI_Shape::COMPSOLID &&
-         aShapeType != GeomAPI_Shape::COMPOUND) {
-        theError = "Error: selected shape has the wrong type.";
-        return false;
-      }
-    } else {
-      if(aShapeType != GeomAPI_Shape::SOLID &&
-         aShapeType != GeomAPI_Shape::COMPSOLID &&
-         aShapeType != GeomAPI_Shape::COMPOUND) {
-        theError = "Error: selected shape has the wrong type.";
-        return false;
-      }
-    }
-  }
-
-  return true;
-}
+// Copyright (C) 2014-20xx CEA/DEN, EDF R&D -->\r
+\r
+// File:        FeaturesPlugin_Validators.cpp\r
+// Created:     22 March 2016\r
+// Author:      Dmitry Bobylev\r
+\r
+#include "FeaturesPlugin_Validators.h"\r
+\r
+#include "FeaturesPlugin_Union.h"\r
+\r
+#include <Events_InfoMessage.h>\r
+\r
+#include <ModelAPI_Attribute.h>\r
+#include <ModelAPI_AttributeInteger.h>\r
+#include <ModelAPI_AttributeSelectionList.h>\r
+#include <ModelAPI_AttributeString.h>\r
+#include <ModelAPI_AttributeReference.h>\r
+#include <ModelAPI_AttributeRefList.h>\r
+#include <ModelAPI_Feature.h>\r
+#include <ModelAPI_ResultCompSolid.h>\r
+#include <ModelAPI_ResultConstruction.h>\r
+#include <ModelAPI_Tools.h>\r
+\r
+#include <GeomValidators_BodyShapes.h>\r
+#include <GeomValidators_FeatureKind.h>\r
+#include <GeomValidators_ShapeType.h>\r
+\r
+#include <GeomAPI_DataMapOfShapeShape.h>\r
+#include <GeomAPI_Lin.h>\r
+#include <GeomAPI_PlanarEdges.h>\r
+#include <GeomAPI_ShapeExplorer.h>\r
+#include <GeomAPI_ShapeIterator.h>\r
+\r
+#include <GeomAlgoAPI_CompoundBuilder.h>\r
+#include <GeomAlgoAPI_ShapeBuilder.h>\r
+#include <GeomAlgoAPI_ShapeTools.h>\r
+#include <GeomAlgoAPI_WireBuilder.h>\r
+\r
+#define _USE_MATH_DEFINES\r
+#include <math.h>\r
+\r
+//==================================================================================================\r
+bool FeaturesPlugin_ValidatorPipePath::isValid(const AttributePtr& theAttribute,\r
+                                               const std::list<std::string>& theArguments,\r
+                                               Events_InfoMessage& theError) const\r
+{\r
+  AttributeSelectionPtr aPathAttrSelection = std::dynamic_pointer_cast<ModelAPI_AttributeSelection>(theAttribute);\r
+  if(!aPathAttrSelection.get()) {\r
+    theError = "Error: This validator can only work with path selector in \"Pipe\" feature.";\r
+    return false;\r
+  }\r
+\r
+  GeomShapePtr aPathShape = aPathAttrSelection->value();\r
+  ResultPtr aContext = aPathAttrSelection->context();\r
+  if(!aContext.get()) {\r
+    theError = "Error: Empty context.";\r
+    return false;\r
+  }\r
+  GeomShapePtr aContextShape = aContext->shape();\r
+  if(aPathShape.get() && aPathShape->shapeType() == GeomAPI_Shape::WIRE && !aPathShape->isEqual(aContextShape)) {\r
+    theError = "Error: Local selection of wires not allowed.";\r
+    return false;\r
+  }\r
+\r
+  return true;\r
+}\r
+\r
+//==================================================================================================\r
+bool FeaturesPlugin_ValidatorPipeLocations::isValid(const std::shared_ptr<ModelAPI_Feature>& theFeature,\r
+                                                    const std::list<std::string>& theArguments,\r
+                                                    Events_InfoMessage& theError) const\r
+{\r
+  static const std::string aCreationMethodID = "creation_method";\r
+  static const std::string aBaseObjectsID = "base_objects";\r
+  static const std::string aLocationsID = "locations_objects";\r
+\r
+  if(theFeature->getKind() != "Pipe") {\r
+    theError = "Error: Feature \"%1\" does not supported by this validator.";\r
+    theError.arg(theFeature->getKind());\r
+    return false;\r
+  }\r
+\r
+  AttributeStringPtr aCreationMethodAttr = theFeature->string(aCreationMethodID);\r
+  if(!aCreationMethodAttr.get()) {\r
+    theError = "Error: Could not get \"%1\" attribute.";\r
+    theError.arg(aCreationMethodID);\r
+    return false;\r
+  }\r
+\r
+  if(aCreationMethodAttr->value() != "locations") {\r
+    return true;\r
+  }\r
+\r
+  AttributeSelectionListPtr aBaseObjectsSelectionList = theFeature->selectionList(aBaseObjectsID);\r
+  if(!aBaseObjectsSelectionList.get()) {\r
+    theError = "Error: Could not get \"%1\" attribute.";\r
+    theError.arg(aBaseObjectsID);\r
+    return false;\r
+  }\r
+\r
+  AttributeSelectionListPtr aLocationsSelectionList = theFeature->selectionList(aLocationsID);\r
+  if(!aLocationsSelectionList.get()) {\r
+    theError = "Error: Could not get \"%1\" attribute.";\r
+    theError.arg(aBaseObjectsID);\r
+    return false;\r
+  }\r
+\r
+  if(aLocationsSelectionList->size() > 0 && aLocationsSelectionList->size() != aBaseObjectsSelectionList->size()) {\r
+    theError = "Error: Number of locations should be the same as base objects.";\r
+    return false;\r
+  }\r
+\r
+  return true;\r
+}\r
+\r
+//==================================================================================================\r
+bool FeaturesPlugin_ValidatorPipeLocations::isNotObligatory(std::string theFeature, std::string theAttribute)\r
+{\r
+  return false;\r
+}\r
+\r
+//==================================================================================================\r
+bool FeaturesPlugin_ValidatorBaseForGeneration::isValid(const AttributePtr& theAttribute,\r
+                                                        const std::list<std::string>& theArguments,\r
+                                                        Events_InfoMessage& theError) const\r
+{\r
+  if(theArguments.empty()) {\r
+    theError = "Error: Validator parameters is empty.";\r
+    return false;\r
+  }\r
+\r
+  // Checking attribute.\r
+  if(!isValidAttribute(theAttribute, theArguments, theError)) {\r
+    if(theError.empty()) {\r
+      theError = "Error: Attribute contains unacceptable shape.";\r
+    }\r
+    return false;\r
+  }\r
+\r
+  std::set<ResultConstructionPtr> aSelectedSketches;\r
+  std::set<ResultConstructionPtr> aSelectedSketchesFromObjects;\r
+  GeomAPI_DataMapOfShapeShape aSelectedWiresFromObjects;\r
+  std::string anAttributeType = theAttribute->attributeType();\r
+  if(anAttributeType == ModelAPI_AttributeSelectionList::typeId()) {\r
+    AttributeSelectionListPtr aListAttr = std::dynamic_pointer_cast<ModelAPI_AttributeSelectionList>(theAttribute);\r
+    for(int anIndex = 0; anIndex < aListAttr->size(); ++anIndex) {\r
+      AttributeSelectionPtr aSelectionAttr = aListAttr->value(anIndex);\r
+      ResultPtr aContext = aSelectionAttr->context();\r
+      if(!aContext.get()) {\r
+        theError = "Error: Empty context.";\r
+        return false;\r
+      }\r
+\r
+      ResultConstructionPtr aResultConstruction = std::dynamic_pointer_cast<ModelAPI_ResultConstruction>(aContext);\r
+      if(!aResultConstruction.get()) {\r
+        // It is not a result construction. If shape is compound check that it contains only faces and edges.\r
+        GeomShapePtr aShape = aSelectionAttr->value();\r
+        if(!aShape.get()) {\r
+          aShape = aContext->shape();\r
+        }\r
+\r
+        if(aShape->shapeType() == GeomAPI_Shape::COMPOUND) {\r
+          for(GeomAPI_ShapeIterator anIt(aShape); anIt.more(); anIt.next()) {\r
+            GeomShapePtr aSubShape = anIt.current();\r
+            if(aSubShape->shapeType() != GeomAPI_Shape::EDGE\r
+                && aSubShape->shapeType() != GeomAPI_Shape::FACE) {\r
+              theError = "Error: Compound should contain only faces and edges.";\r
+              return false;\r
+            }\r
+          }\r
+        }\r
+\r
+        continue;\r
+      }\r
+\r
+      GeomShapePtr aShape = aSelectionAttr->value();\r
+      GeomShapePtr aContextShape = aResultConstruction->shape();\r
+      if(!aShape.get()) {\r
+        // Whole sketch selected.\r
+        if(aSelectedSketchesFromObjects.find(aResultConstruction) != aSelectedSketchesFromObjects.cend()) {\r
+          theError = "Error: Object from this sketch is already selected. Sketch is not allowed for selection.";\r
+          return false;\r
+        }\r
+\r
+        aSelectedSketches.insert(aResultConstruction);\r
+      } else {\r
+        // Object from sketch selected.\r
+        if(aSelectedSketches.find(aResultConstruction) != aSelectedSketches.cend()) {\r
+          theError = "Error: Whole sketch with this object is already selected. Don't allow to select this object.";\r
+          return false;\r
+        }\r
+\r
+        for(GeomAPI_ShapeExplorer anExp(aShape, GeomAPI_Shape::WIRE); anExp.more(); anExp.next()) {\r
+          GeomShapePtr aWire = anExp.current();\r
+          if(aWire->orientation() != GeomAPI_Shape::FORWARD) {\r
+            theError = "Error: Wire with wrong orientation selected.";\r
+            return false;\r
+          }\r
+\r
+          if(aSelectedWiresFromObjects.isBound(aWire)) {\r
+            theError = "Error: Objects with such wire already selected. Don't allow to select this object.";\r
+            return false;\r
+          }\r
+\r
+          aSelectedWiresFromObjects.bind(aWire, aWire);\r
+          aSelectedSketchesFromObjects.insert(aResultConstruction);\r
+        }\r
+      }\r
+    }\r
+  }\r
+\r
+  return true;\r
+}\r
+\r
+//==================================================================================================\r
+bool FeaturesPlugin_ValidatorBaseForGeneration::isValidAttribute(const AttributePtr& theAttribute,\r
+                                                                 const std::list<std::string>& theArguments,\r
+                                                                 Events_InfoMessage& theError) const\r
+{\r
+  if(!theAttribute.get()) {\r
+    theError = "Error: Empty attribute.";\r
+    return false;\r
+  }\r
+\r
+  std::string anAttributeType = theAttribute->attributeType();\r
+  if(anAttributeType == ModelAPI_AttributeSelectionList::typeId()) {\r
+    AttributeSelectionListPtr aListAttr = std::dynamic_pointer_cast<ModelAPI_AttributeSelectionList>(theAttribute);\r
+    for(int anIndex = 0; anIndex < aListAttr->size(); ++anIndex) {\r
+      // If at least one attribute is invalid, the result is false.\r
+      if(!isValidAttribute(aListAttr->value(anIndex), theArguments, theError)) {\r
+        return false;\r
+      }\r
+    }\r
+  } else if(anAttributeType == ModelAPI_AttributeSelection::typeId()) {\r
+    // Getting context.\r
+    AttributeSelectionPtr anAttr = std::dynamic_pointer_cast<ModelAPI_AttributeSelection>(theAttribute);\r
+    ResultPtr aContext = anAttr->context();\r
+    if(!aContext.get()) {\r
+      theError = "Error: Attribute have empty context.";\r
+      return false;\r
+    }\r
+\r
+    GeomShapePtr aShape = anAttr->value();\r
+    GeomShapePtr aContextShape = aContext->shape();\r
+    if(!aShape.get()) {\r
+      aShape = aContextShape;\r
+    }\r
+    if(!aShape.get()) {\r
+      theError = "Error: Empty shape selected";\r
+      return false;\r
+    }\r
+\r
+    ResultConstructionPtr aConstruction = std::dynamic_pointer_cast<ModelAPI_ResultConstruction>(aContext);\r
+    if(aConstruction.get()) {\r
+      // Construciotn selected. Check that is is not infinite.\r
+      if(aConstruction->isInfinite()) {\r
+        theError = "Error: Infinite constructions is not allowed as base.";\r
+        return false;\r
+      }\r
+\r
+      if(aShape->isEqual(aContextShape)) {\r
+        // Whole construction selected. Check that it have faces.\r
+        if(aConstruction->facesNum() > 0) {\r
+          return true;\r
+        }\r
+      } else {\r
+        // Shape on construction selected. Check that it is a face or wire.\r
+        if(aShape->shapeType() == GeomAPI_Shape::WIRE || aShape->shapeType() == GeomAPI_Shape::FACE) {\r
+          return true;\r
+        }\r
+      }\r
+\r
+      return false;\r
+    }\r
+\r
+    if(!aShape->isEqual(aContextShape)) {\r
+      // Local selection on body does not allowed.\r
+      theError = "Error: Selected shape is in the local selection. Only global selection is allowed.";\r
+      return false;\r
+    }\r
+\r
+    // Check that object is a shape with allowed type.\r
+    GeomValidators_ShapeType aShapeTypeValidator;\r
+    if(!aShapeTypeValidator.isValid(anAttr, theArguments, theError)) {\r
+      theError = "Error: Selected shape has unacceptable type. Acceptable types are: faces or wires on sketch, whole sketch(if it has at least one face), and whole objects with shape types: %1";\r
+      std::string anArgumentString;\r
+      for(auto anIt = theArguments.cbegin(); anIt != theArguments.cend(); ++anIt) {\r
+        if (!anArgumentString.empty())\r
+          anArgumentString += ", ";\r
+        anArgumentString += *anIt;\r
+      }\r
+      theError.arg(anArgumentString);\r
+      return false;\r
+    }\r
+\r
+  } else {\r
+    theError = "Error: Attribute \"%1\" does not supported by this validator.";\r
+    theError.arg(anAttributeType);\r
+    return false;\r
+  }\r
+\r
+  return true;\r
+}\r
+\r
+//==================================================================================================\r
+bool FeaturesPlugin_ValidatorCompositeLauncher::isValid(const AttributePtr& theAttribute,\r
+                                                        const std::list<std::string>& theArguments,\r
+                                                        Events_InfoMessage& theError) const\r
+{\r
+  if (theAttribute->attributeType() != ModelAPI_AttributeReference::typeId()) {\r
+    theError = "Error: The attribute with the %1 type is not processed";\r
+    theError.arg(theAttribute->attributeType());\r
+    return false;\r
+  }\r
+  if (theArguments.size() != 2) {\r
+    theError = "Error: Wrong parameters in XML definition for %1 type";\r
+    theError.arg(theAttribute->attributeType());\r
+    return false;\r
+  }\r
+  // first argument is for the base attribute, second - for skipping feature kind\r
+  std::list<std::string>::const_iterator anIt = theArguments.begin();\r
+  std::string aBaseAttributeId = *anIt;\r
+  FeaturePtr aFeature = ModelAPI_Feature::feature(theAttribute->owner());\r
+  AttributePtr aBaseAttribute = aFeature->attribute(aBaseAttributeId);\r
+  if (!aBaseAttribute.get()) {\r
+    theError = "Wrong parameters in XML definition for %1 type";\r
+    theError.arg(theAttribute->attributeType());\r
+    return false;\r
+  }\r
+  if (aBaseAttribute->isInitialized()) // when base list of composite feature is already filled,\r
+    // this validator is not necessary anymore\r
+    return true;\r
+\r
+  anIt++;\r
+  std::string aFeatureAttributeKind = *anIt;\r
+  GeomValidators_FeatureKind* aValidator = new GeomValidators_FeatureKind();\r
+  // check whether the selection is on the sketch\r
+  std::list<std::string> anArguments;\r
+  anArguments.push_back(aFeatureAttributeKind);\r
+\r
+  bool aFeatureKind = aValidator->isValid(theAttribute, theArguments, theError);\r
+  bool aPlanarFace = false;\r
+  // check if selection has Face selected\r
+  GeomValidators_ShapeType* aShapeType = new GeomValidators_ShapeType();\r
+  anArguments.clear();\r
+  anArguments.push_back("face");\r
+  aPlanarFace = aShapeType->isValid(theAttribute, anArguments, theError);\r
+\r
+  bool aValid = !aFeatureKind && aPlanarFace;\r
+  return aValid;\r
+}\r
+\r
+//==================================================================================================\r
+bool FeaturesPlugin_ValidatorExtrusionDir::isValid(const std::shared_ptr<ModelAPI_Feature>& theFeature,\r
+                                                 const std::list<std::string>& theArguments,\r
+                                                 Events_InfoMessage& theError) const\r
+{\r
+  if(theArguments.size() != 2) {\r
+    theError = "Error: Validator should be used with 2 parameters for extrusion.";\r
+    return false;\r
+  }\r
+\r
+  std::list<std::string>::const_iterator anArgsIt = theArguments.begin(), aLast = theArguments.end();\r
+\r
+  AttributePtr aCheckAttribute = theFeature->attribute(*anArgsIt);\r
+  ++anArgsIt;\r
+\r
+  GeomShapePtr aDirShape;\r
+  AttributeSelectionPtr aSelAttr = theFeature->selection(*anArgsIt);\r
+  if(aSelAttr.get()) {\r
+    aDirShape = aSelAttr->value();\r
+    if(!aDirShape.get()) {\r
+      ResultPtr aContext = aSelAttr->context();\r
+      if(aContext.get()) {\r
+        aDirShape = aContext->shape();\r
+      }\r
+    }\r
+  }\r
+\r
+  if(!aDirShape.get()) {\r
+    // Check that dir can be empty.\r
+    if(!isShapesCanBeEmpty(aCheckAttribute, theError)) {\r
+      theError = "Error: Base objects list contains vertex or edge, so attribute \"%1\" can not be used with default value. Select direction for extrusion.";\r
+      theError.arg(*anArgsIt);\r
+      return false;\r
+    } else {\r
+      return true;\r
+    }\r
+  }\r
+\r
+  std::shared_ptr<GeomAPI_Edge> aDirEdge(new GeomAPI_Edge(aDirShape));\r
+\r
+  // If faces selected check that direction not parallel with them.\r
+  AttributeSelectionListPtr aListAttr = std::dynamic_pointer_cast<ModelAPI_AttributeSelectionList>(aCheckAttribute);\r
+  for(int anIndex = 0; anIndex < aListAttr->size(); ++anIndex) {\r
+    AttributeSelectionPtr anAttr = aListAttr->value(anIndex);\r
+    GeomShapePtr aShapeInList = anAttr->value();\r
+    if(!aShapeInList.get()) {\r
+      aShapeInList = anAttr->context()->shape();\r
+    }\r
+    bool isParallel = true;\r
+    if(aShapeInList->shapeType() == GeomAPI_Shape::FACE || aShapeInList->shapeType() == GeomAPI_Shape::SHELL) {\r
+      for(GeomAPI_ShapeExplorer anExp(aShapeInList, GeomAPI_Shape::FACE); anExp.more(); anExp.next()) {\r
+        std::shared_ptr<GeomAPI_Face> aFace(new GeomAPI_Face(anExp.current()));\r
+        isParallel = GeomAlgoAPI_ShapeTools::isParallel(aDirEdge, aFace);\r
+        if(isParallel) {\r
+          break;\r
+        }\r
+      }\r
+    } else if(aShapeInList->shapeType() == GeomAPI_Shape::COMPOUND) {\r
+      std::shared_ptr<GeomAPI_PlanarEdges> aPlanarEdges = std::dynamic_pointer_cast<GeomAPI_PlanarEdges>(aShapeInList);\r
+      if(aPlanarEdges.get()) {\r
+        std::shared_ptr<GeomAPI_Dir> aSketchDir = aPlanarEdges->norm();\r
+        if(aDirEdge->isLine()) {\r
+          std::shared_ptr<GeomAPI_Dir> aDir = aDirEdge->line()->direction();\r
+          isParallel = abs(aSketchDir->angle(aDir) - M_PI / 2.0) < 10e-7;\r
+        } else {\r
+          isParallel = false;\r
+        }\r
+      } else {\r
+        isParallel = false;\r
+      }\r
+    } else {\r
+      isParallel = false;\r
+    }\r
+    if(isParallel) {\r
+      theError = "Error: Direction is parallel to one of the selected face or face on selected shell.";\r
+      return false;\r
+    }\r
+  }\r
+\r
+  return true;\r
+}\r
+\r
+//==================================================================================================\r
+bool FeaturesPlugin_ValidatorExtrusionDir::isNotObligatory(std::string theFeature, std::string theAttribute)\r
+{\r
+  return false;\r
+}\r
+\r
+//==================================================================================================\r
+bool FeaturesPlugin_ValidatorExtrusionDir::isShapesCanBeEmpty(const AttributePtr& theAttribute,\r
+                                                              Events_InfoMessage& theError) const\r
+{\r
+  if(!theAttribute.get()) {\r
+    return true;\r
+  }\r
+\r
+  std::string anAttributeType = theAttribute->attributeType();\r
+  if(anAttributeType == ModelAPI_AttributeSelectionList::typeId()) {\r
+    AttributeSelectionListPtr aListAttr = std::dynamic_pointer_cast<ModelAPI_AttributeSelectionList>(theAttribute);\r
+    for(int anIndex = 0; anIndex < aListAttr->size(); ++anIndex) {\r
+      // If at least one attribute is invalid, the result is false.\r
+      if(!isShapesCanBeEmpty(aListAttr->value(anIndex), theError)) {\r
+        return false;\r
+      }\r
+    }\r
+  } else if(anAttributeType == ModelAPI_AttributeSelection::typeId()) {\r
+    // Getting context.\r
+    AttributeSelectionPtr anAttr = std::dynamic_pointer_cast<ModelAPI_AttributeSelection>(theAttribute);\r
+    ResultPtr aContext = anAttr->context();\r
+    if(!aContext.get()) {\r
+      return false;\r
+    }\r
+\r
+    GeomShapePtr aShape = anAttr->value();\r
+    GeomShapePtr aContextShape = aContext->shape();\r
+    if(!aShape.get()) {\r
+      aShape = aContextShape;\r
+    }\r
+    if(!aShape.get()) {\r
+      return false;\r
+    }\r
+\r
+    if(aShape->shapeType() == GeomAPI_Shape::VERTEX ||\r
+       aShape->shapeType() == GeomAPI_Shape::EDGE ||\r
+       !aShape->isPlanar()) {\r
+      return false;\r
+    }\r
+  } else {\r
+    return false;\r
+  }\r
+\r
+  return true;\r
+}\r
+\r
+//==================================================================================================\r
+bool FeaturesPlugin_ValidatorBooleanSelection::isValid(const AttributePtr& theAttribute,\r
+                                                       const std::list<std::string>& theArguments,\r
+                                                       Events_InfoMessage& theError) const\r
+{\r
+  AttributeSelectionListPtr anAttrSelectionList = std::dynamic_pointer_cast<ModelAPI_AttributeSelectionList>(theAttribute);\r
+  if(!anAttrSelectionList.get()) {\r
+    theError = "Error: This validator can only work with selection list attributes in \"Boolean\" feature.";\r
+    return false;\r
+  }\r
+  FeaturePtr aFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());\r
+  int anOperationType = aFeature->integer("bool_type")->value();\r
+\r
+  for(int anIndex = 0; anIndex < anAttrSelectionList->size(); ++anIndex) {\r
+    AttributeSelectionPtr anAttrSelection = anAttrSelectionList->value(anIndex);\r
+    if(!anAttrSelection.get()) {\r
+      theError = "Error: Empty attribute selection.";\r
+      return false;\r
+    }\r
+    ResultPtr aContext = anAttrSelection->context();\r
+    if(!aContext.get()) {\r
+      theError = "Error: Empty selection context.";\r
+      return false;\r
+    }\r
+    ResultConstructionPtr aResultConstruction =\r
+      std::dynamic_pointer_cast<ModelAPI_ResultConstruction>(aContext);\r
+    if(aResultConstruction.get()) {\r
+      theError = "Error: Result construction not allowed for selection.";\r
+      return false;\r
+    }\r
+    std::shared_ptr<GeomAPI_Shape> aShape = anAttrSelection->value();\r
+    GeomShapePtr aContextShape = aContext->shape();\r
+    if(!aShape.get()) {\r
+      aShape = aContextShape;\r
+    }\r
+    if(!aShape.get()) {\r
+      theError = "Error: Empty shape.";\r
+      return false;\r
+    }\r
+    if(!aShape->isEqual(aContextShape)) {\r
+      theError = "Error: Local selection not allowed.";\r
+      return false;\r
+    }\r
+\r
+    int aShapeType = aShape->shapeType();\r
+    if(anOperationType == 1) {\r
+      // Fuse operation. Allow to select edges, faces and solids.\r
+      if(aShapeType != GeomAPI_Shape::EDGE &&\r
+         aShapeType != GeomAPI_Shape::FACE &&\r
+         aShapeType != GeomAPI_Shape::SOLID &&\r
+         aShapeType != GeomAPI_Shape::COMPSOLID &&\r
+         aShapeType != GeomAPI_Shape::COMPOUND) {\r
+        theError = "Error: Selected shape has the wrong type.";\r
+        return false;\r
+      }\r
+    } else {\r
+      if(aShapeType != GeomAPI_Shape::SOLID &&\r
+         aShapeType != GeomAPI_Shape::COMPSOLID &&\r
+         aShapeType != GeomAPI_Shape::COMPOUND) {\r
+        theError = "Error: Selected shape has the wrong type.";\r
+        return false;\r
+      }\r
+    }\r
+  }\r
+\r
+  return true;\r
+}\r
+\r
+//==================================================================================================\r
+bool FeaturesPlugin_ValidatorPartitionSelection::isValid(const AttributePtr& theAttribute,\r
+                                                         const std::list<std::string>& theArguments,\r
+                                                         Events_InfoMessage& theError) const\r
+{\r
+  AttributeSelectionListPtr anAttrSelectionList = std::dynamic_pointer_cast<ModelAPI_AttributeSelectionList>(theAttribute);\r
+  if(!anAttrSelectionList.get()) {\r
+    theError = "Error: This validator can only work with selection list in \"Partition\" feature.";\r
+    return false;\r
+  }\r
+\r
+  for(int anIndex = 0; anIndex < anAttrSelectionList->size(); ++anIndex) {\r
+    AttributeSelectionPtr aSelectAttr = anAttrSelectionList->value(anIndex);\r
+\r
+    //GeomValidators_BodyShapes aBodyValidator;\r
+    //if(aBodyValidator.isValid(aSelectAttr, theArguments, theError)) {\r
+    //  continue;\r
+    //}\r
+\r
+    GeomValidators_FeatureKind aFeatureKindValidator;\r
+    if(aFeatureKindValidator.isValid(aSelectAttr, theArguments, theError)) {\r
+      continue;\r
+    }\r
+\r
+    ResultPtr aContext = aSelectAttr->context();\r
+    ResultConstructionPtr aResultConstruction = std::dynamic_pointer_cast<ModelAPI_ResultConstruction>(aContext);\r
+    if(aResultConstruction.get()) {\r
+      theError = "Error: Only body shapes and construction planes are allowed for selection.";\r
+      return false;\r
+    }\r
+\r
+    ResultCompSolidPtr aResultCompsolid = std::dynamic_pointer_cast<ModelAPI_ResultCompSolid>(aContext);\r
+    if(aResultCompsolid.get()) {\r
+      continue;\r
+    }\r
+\r
+    theError = "Error: Only body shapes and construction planes are allowed for selection.";\r
+    return false;\r
+  }\r
+\r
+  theError = "";\r
+  return true;\r
+}\r
+\r
+//==================================================================================================\r
+bool FeaturesPlugin_ValidatorRemoveSubShapesSelection::isValid(const AttributePtr& theAttribute,\r
+                                                               const std::list<std::string>& theArguments,\r
+                                                               Events_InfoMessage& theError) const\r
+{\r
+  AttributeSelectionListPtr aSubShapesAttrList = std::dynamic_pointer_cast<ModelAPI_AttributeSelectionList>(theAttribute);\r
+  if(!aSubShapesAttrList.get()) {\r
+    theError = "Error: This validator can only work with selection list in \"Remove Sub-Shapes\" feature.";\r
+    return false;\r
+  }\r
+\r
+  static const std::string aBaseShapeID = "base_shape";\r
+  FeaturePtr aFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(theAttribute->owner());\r
+  AttributeSelectionPtr aShapeAttrSelection = aFeature->selection(aBaseShapeID);\r
+\r
+  if(!aShapeAttrSelection.get()) {\r
+    theError = "Error: Could not get \"%1\" attribute.";\r
+    theError.arg(aBaseShapeID);\r
+    return false;\r
+  }\r
+\r
+  GeomShapePtr aBaseShape = aShapeAttrSelection->value();\r
+  ResultPtr aContext = aShapeAttrSelection->context();\r
+  if(!aContext.get()) {\r
+    theError = "Error: Empty context.";\r
+    return false;\r
+  }\r
+  if(!aBaseShape.get()) {\r
+    aBaseShape = aContext->shape();\r
+  }\r
+  if(!aBaseShape.get()) {\r
+    theError = "Error: Empty base shape.";\r
+    return false;\r
+  }\r
+\r
+  for(int anIndex = 0; anIndex < aSubShapesAttrList->size(); ++anIndex) {\r
+    bool isSameFound = false;\r
+    AttributeSelectionPtr anAttrSelectionInList = aSubShapesAttrList->value(anIndex);\r
+    GeomShapePtr aShapeToAdd = anAttrSelectionInList->value();\r
+    for(GeomAPI_ShapeIterator anIt(aBaseShape); anIt.more(); anIt.next()) {\r
+      if(anIt.current()->isEqual(aShapeToAdd)) {\r
+        isSameFound = true;\r
+        break;\r
+      }\r
+    }\r
+    if(!isSameFound) {\r
+      theError = "Error: Only sub-shapes of selected shape is allowed for selection.";\r
+      return false;\r
+    }\r
+  }\r
+\r
+  return true;\r
+}\r
+\r
+//==================================================================================================\r
+bool FeaturesPlugin_ValidatorRemoveSubShapesResult::isValid(const std::shared_ptr<ModelAPI_Feature>& theFeature,\r
+                                                            const std::list<std::string>& theArguments,\r
+                                                            Events_InfoMessage& theError) const\r
+{\r
+  static const std::string aBaseShapeID = "base_shape";\r
+  static const std::string aSubShapesID = "subshapes";\r
+\r
+  if(theFeature->getKind() != "Remove_SubShapes") {\r
+    theError = "Error: Feature \"%1\" does not supported by this validator.";\r
+    theError.arg(theFeature->getKind());\r
+    return false;\r
+  }\r
+\r
+  AttributeSelectionPtr aShapeAttrSelection = theFeature->selection(aBaseShapeID);\r
+  if(!aShapeAttrSelection.get()) {\r
+    theError = "Error: Could not get \"%1\" attribute.";\r
+    theError.arg(aBaseShapeID);\r
+    return false;\r
+  }\r
+\r
+  AttributeSelectionListPtr aSubShapesAttrList = theFeature->selectionList(aSubShapesID);\r
+  if(!aSubShapesAttrList.get()) {\r
+    theError = "Error: Could not get \"%1\" attribute.";\r
+    theError.arg(aSubShapesID);\r
+    return false;\r
+  }\r
+\r
+  // Copy base shape.\r
+  GeomShapePtr aBaseShape = aShapeAttrSelection->value();\r
+  if(!aBaseShape.get()) {\r
+    theError = "Error: Base shape is empty.";\r
+    return false;\r
+  }\r
+  GeomShapePtr aResultShape = aBaseShape->emptyCopied();\r
+\r
+  // Copy sub-shapes from list to new shape.\r
+  for(int anIndex = 0; anIndex < aSubShapesAttrList->size(); ++anIndex) {\r
+    AttributeSelectionPtr anAttrSelectionInList = aSubShapesAttrList->value(anIndex);\r
+    GeomShapePtr aShapeToAdd = anAttrSelectionInList->value();\r
+    GeomAlgoAPI_ShapeBuilder::add(aResultShape, aShapeToAdd);\r
+  }\r
+\r
+  // Check new shape.\r
+  if(!GeomAlgoAPI_ShapeTools::isShapeValid(aResultShape)) {\r
+    theError = "Error: Resulting shape is not valid.";\r
+    return false;\r
+  }\r
+\r
+  return true;\r
+}\r
+\r
+//==================================================================================================\r
+bool FeaturesPlugin_ValidatorRemoveSubShapesResult::isNotObligatory(std::string theFeature,\r
+                                                                    std::string theAttribute)\r
+{\r
+  return false;\r
+}\r
+\r
+//==================================================================================================\r
+bool FeaturesPlugin_ValidatorUnionSelection::isValid(const AttributePtr& theAttribute,\r
+                                                     const std::list<std::string>& theArguments,\r
+                                                     Events_InfoMessage& theError) const\r
+{\r
+  AttributeSelectionListPtr aBaseObjectsAttrList = std::dynamic_pointer_cast<ModelAPI_AttributeSelectionList>(theAttribute);\r
+  if(!aBaseObjectsAttrList.get()) {\r
+    theError = "Error: This validator can only work with selection list in \"%1\" feature.";\r
+    theError.arg(FeaturesPlugin_Union::ID());\r
+    return false;\r
+  }\r
+\r
+  for(int anIndex = 0; anIndex < aBaseObjectsAttrList->size(); ++anIndex) {\r
+    bool isSameFound = false;\r
+    AttributeSelectionPtr anAttrSelectionInList = aBaseObjectsAttrList->value(anIndex);\r
+    ResultCompSolidPtr aResult = std::dynamic_pointer_cast<ModelAPI_ResultCompSolid>(anAttrSelectionInList->context());\r
+    if(!aResult.get()) {\r
+      continue;\r
+    }\r
+    if(aResult->numberOfSubs() > 0) {\r
+      theError = "Error: Whole compsolids not allowed for selection.";\r
+      return false;\r
+    }\r
+  }\r
+\r
+  return true;\r
+}\r
+\r
+//==================================================================================================\r
+bool FeaturesPlugin_ValidatorUnionArguments::isValid(const std::shared_ptr<ModelAPI_Feature>& theFeature,\r
+                                                     const std::list<std::string>& theArguments,\r
+                                                     Events_InfoMessage& theError) const\r
+{\r
+  // Check feature kind.\r
+  if(theFeature->getKind() != FeaturesPlugin_Union::ID()) {\r
+    theError = "Error: This validator supports only \"%1\" feature.";\r
+    theError.arg(FeaturesPlugin_Union::ID());\r
+    return false;\r
+  }\r
+\r
+  // Get base objects attribute list.\r
+  AttributeSelectionListPtr aBaseObejctsAttrList = theFeature->selectionList(FeaturesPlugin_Union::BASE_OBJECTS_ID());\r
+  if(!aBaseObejctsAttrList.get()) {\r
+    theError = "Error: Could not get \"%1\" attribute.";\r
+    theError.arg(FeaturesPlugin_Union::BASE_OBJECTS_ID());\r
+    return false;\r
+  }\r
+\r
+  // Get all shapes.\r
+  ListOfShape aBaseShapesList;\r
+  for(int anIndex = 0; anIndex < aBaseObejctsAttrList->size(); ++anIndex) {\r
+    AttributeSelectionPtr anAttrSelectionInList = aBaseObejctsAttrList->value(anIndex);\r
+    GeomShapePtr aShape = anAttrSelectionInList->value();\r
+    aBaseShapesList.push_back(aShape);\r
+  }\r
+\r
+  // Make componud and find connected.\r
+  GeomShapePtr aCompound = GeomAlgoAPI_CompoundBuilder::compound(aBaseShapesList);\r
+  ListOfShape aCombined, aFree;\r
+  GeomAlgoAPI_ShapeTools::combineShapes(aCompound, GeomAPI_Shape::COMPSOLID, aCombined, aFree);\r
+\r
+  if(aFree.size() > 0 || aCombined.size() > 1) {\r
+    theError = "Error: Not all shapes have shared topology.";\r
+    return false;\r
+  }\r
+\r
+  return true;\r
+}\r
+\r
+//==================================================================================================\r
+bool FeaturesPlugin_ValidatorUnionArguments::isNotObligatory(std::string theFeature,\r
+                                                             std::string theAttribute)\r
+{\r
+  return false;\r
+}\r
+\r
+bool FeaturesPlugin_ValidatorConcealedResult::isValid(const AttributePtr& theAttribute,\r
+                                            const std::list<std::string>& theArguments,\r
+                                            Events_InfoMessage& theError) const\r
+{\r
+  if (theAttribute->attributeType() != ModelAPI_AttributeReference::typeId()) {\r
+    theError = "Error: The attribute with the %1 type is not processed";\r
+    theError.arg(theAttribute->attributeType());\r
+    return false;\r
+  }\r
+\r
+  AttributeReferencePtr aRefAttribute = std::dynamic_pointer_cast<ModelAPI_AttributeReference>\r
+                                                                               (theAttribute);\r
+  ObjectPtr aRefObject = aRefAttribute->value();\r
+  if (!aRefObject.get()) {\r
+    theError = "Error: Empty feature.";\r
+    return false;\r
+  }\r
+\r
+  FeaturePtr aRefFeature = std::dynamic_pointer_cast<ModelAPI_Feature>(aRefObject);\r
+  if (!aRefFeature.get()) {\r
+    theError = "Error: Empty feature.";\r
+    return false;\r
+  }\r
+  std::list<std::shared_ptr<ModelAPI_Result> > aResults;\r
+  ModelAPI_Tools::getConcealedResults(aRefFeature, aResults);\r
+\r
+  int aConcealedResults = aResults.size();\r
+  if (!aConcealedResults && !theArguments.empty()) {\r
+    // find if these results are touched by the feature in another attribute\r
+    std::list<std::string>::const_iterator anIt = theArguments.begin();\r
+    std::string aRecoveredList = *anIt;\r
+    if (!aRecoveredList.empty()) {\r
+      std::shared_ptr<ModelAPI_AttributeRefList> aParameterList =\r
+                                 theAttribute->owner()->data()->reflist(aRecoveredList);\r
+      if (aParameterList.get())\r
+        aConcealedResults = aParameterList->size();\r
+    }\r
+  }\r
+\r
+  if (aConcealedResults == 0)\r
+    theError = "Error: No concealed results.";\r
+\r
+  return theError.empty();\r
+}\r