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 #include <Events_Loop.h>
  11
  12 using namespace std;
  13
  14 void Model_AttributeReference::setValue(boost::shared_ptr<ModelAPI_Feature> theFeature)
  15 {
  16   if (value() != theFeature) {
  17     boost::shared_ptr<Model_Data> aData =
  18       boost::dynamic_pointer_cast<Model_Data>(theFeature->data());
  19     if (myRef.IsNull()) {
  20       boost::shared_ptr<Model_Data> aMyData =
  21         boost::dynamic_pointer_cast<Model_Data>(owner()->data());
  22       TDF_Reference::Set(aMyData->label(), aData->label());
  23     } else {
  24       myRef->Set(aData->label());
  25     }
  26
  27     static Events_ID anEvent = Events_Loop::eventByName(EVENT_FEATURE_UPDATED);
  28     Model_FeatureUpdatedMessage aMsg(owner(), anEvent);
  29     Events_Loop::loop()->send(aMsg);
  30   }
  31 }
  32
  33 boost::shared_ptr<ModelAPI_Feature> Model_AttributeReference::value()
  34 {
  35   if (!myRef.IsNull()) {
  36     boost::shared_ptr<Model_Document> aDoc =
  37       boost::dynamic_pointer_cast<Model_Document>(owner()->document());
  38     if (aDoc) {
  39       TDF_Label aRefLab = myRef->Get();
  40       return aDoc->feature(aRefLab);
  41     }
  42   }
  43   // not initialized
  44   return boost::shared_ptr<ModelAPI_Feature>();
  45 }
  46
  47 Model_AttributeReference::Model_AttributeReference(TDF_Label& theLabel)
  48 {
  49   // check the attribute could be already presented in this doc (after load document)
  50   if (!theLabel.FindAttribute(TDF_Reference::GetID(), myRef)) {
  51     // create attribute: not initialized by value yet: attribute is not set to the label!
  52   }
  53 }