src/Model/Model_AttributeReference.cpp

   1 // File:        ModelAPI_AttributeReference.cxx
   2 // Created:     2 Apr 2014
   3 // Author:      Mikhail PONIKAROV
   4
   5 #include "Model_AttributeReference.h"
   6 #include "Model_Application.h"
   7 #include "Model_Events.h"
   8 #include "Model_Data.h"
   9 #include <ModelAPI_Feature.h>
  10
  11 using namespace std;
  12
  13 void Model_AttributeReference::setValue(FeaturePtr theFeature)
  14 {
  15   if (!myIsInitialized || value() != theFeature) {
  16     boost::shared_ptr<Model_Data> aData =
  17       boost::dynamic_pointer_cast<Model_Data>(theFeature->data());
  18     if (myRef.IsNull()) {
  19       boost::shared_ptr<Model_Data> aMyData =
  20         boost::dynamic_pointer_cast<Model_Data>(owner()->data());
  21       myRef = TDF_Reference::Set(aMyData->label(), aData->label());
  22     } else {
  23       myRef->Set(aData->label());
  24     }
  25     owner()->data()->sendAttributeUpdated(this);
  26   }
  27 }
  28
  29 FeaturePtr Model_AttributeReference::value()
  30 {
  31   if (!myRef.IsNull()) {
  32     boost::shared_ptr<Model_Document> aDoc =
  33       boost::dynamic_pointer_cast<Model_Document>(owner()->document());
  34     if (aDoc) {
  35       TDF_Label aRefLab = myRef->Get();
  36       return aDoc->feature(aRefLab);
  37     }
  38   }
  39   // not initialized
  40   return FeaturePtr();
  41 }
  42
  43 Model_AttributeReference::Model_AttributeReference(TDF_Label& theLabel)
  44 {
  45   // not initialized by value yet: attribute is not set to the label!
  46   myIsInitialized = theLabel.FindAttribute(TDF_Reference::GetID(), myRef) == Standard_True;
  47 }