src/Model/Model_AttributeRefAttr.cpp

   1 // File:        ModelAPI_AttributeRefAttr.cxx
   2 // Created:     2 Apr 2014
   3 // Author:      Mikhail PONIKAROV
   4
   5 #include "Model_AttributeRefAttr.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 bool Model_AttributeRefAttr::isFeature()
  15 {
  16   return myID->Get().Length() == 0;
  17 }
  18
  19 void Model_AttributeRefAttr::setAttr(boost::shared_ptr<ModelAPI_Attribute> theAttr)
  20 {
  21   boost::shared_ptr<Model_Data> aData =
  22     boost::dynamic_pointer_cast<Model_Data>(theAttr->owner()->data());
  23   string anID = aData->id(theAttr);
  24   if (feature() == theAttr->owner() && myID->Get().IsEqual(anID.c_str()))
  25     return; // nothing is changed
  26
  27   myRef->Set(aData->label());
  28   myID->Set(aData->id(theAttr).c_str());
  29
  30   static Events_ID anEvent = Events_Loop::eventByName(EVENT_FEATURE_UPDATED);
  31   Model_FeatureUpdatedMessage aMsg(feature(), anEvent);
  32   Events_Loop::loop()->send(aMsg);
  33 }
  34
  35 boost::shared_ptr<ModelAPI_Attribute> Model_AttributeRefAttr::attr()
  36 {
  37   boost::shared_ptr<ModelAPI_Feature> aFeature = feature();
  38   if (aFeature) {
  39     boost::shared_ptr<Model_Data> aData =
  40       boost::dynamic_pointer_cast<Model_Data>(aFeature->data());
  41     return aData->attribute(TCollection_AsciiString(myID->Get()).ToCString());
  42   }
  43   // not initialized
  44   return boost::shared_ptr<ModelAPI_Attribute>();
  45 }
  46
  47 void Model_AttributeRefAttr::setFeature(boost::shared_ptr<ModelAPI_Feature> theFeature)
  48 {
  49   if (myID->Get().Length() != 0 || feature() != theFeature) {
  50     boost::shared_ptr<Model_Data> aData =
  51       boost::dynamic_pointer_cast<Model_Data>(theFeature->data());
  52     myRef->Set(aData->label());
  53     myID->Set(""); // feature is identified by the empty ID
  54
  55     static Events_ID anEvent = Events_Loop::eventByName(EVENT_FEATURE_UPDATED);
  56     Model_FeatureUpdatedMessage aMsg(owner(), anEvent);
  57     Events_Loop::loop()->send(aMsg);
  58   }
  59 }
  60
  61 boost::shared_ptr<ModelAPI_Feature> Model_AttributeRefAttr::feature()
  62 {
  63   if (myRef->Get() != myRef->Label()) { // initialized
  64     boost::shared_ptr<Model_Document> aDoc =
  65       boost::dynamic_pointer_cast<Model_Document>(owner()->document());
  66     if (aDoc) {
  67       TDF_Label aRefLab = myRef->Get();
  68       TDF_Label aFeatureLab = aRefLab.Father();
  69       return aDoc->feature(aRefLab);
  70     }
  71   }
  72   // not initialized
  73   return boost::shared_ptr<ModelAPI_Feature>();
  74 }
  75
  76 Model_AttributeRefAttr::Model_AttributeRefAttr(TDF_Label& theLabel)
  77 {
  78   // check the attribute could be already presented in this doc (after load document)
  79   if (!theLabel.FindAttribute(TDataStd_Comment::GetID(), myID)) {
  80     // create attribute: not initialized by value yet
  81     myID = TDataStd_Comment::Set(theLabel, "");
  82     myRef = TDF_Reference::Set(theLabel, theLabel); // not initialized: reference to itself
  83   }
  84 }