libopencascade-foundation-dev 6.5.0.dfsg-2build1 / usr / include / opencascade / GraphDS_EntitiesIterator.gxx

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// Copyright: 	Matra-Datavision 1991
// File:	GraphDS_EntitiesIterator.cxx
// Created:	Tue Sep 10 17:01:56 1991
// Author:	Denis PASCAL
//		<dp>

#include <Standard_NoSuchObject.hxx>
#include <Standard_NoMoreObject.hxx>
#include <GraphDS_DataMapIteratorOfEntityRoleMap.hxx> 

//=======================================================================
//function : GraphDS_EntitiesIterator
//purpose  : 
//=======================================================================

GraphDS_EntitiesIterator::GraphDS_EntitiesIterator ()
{
}

//=======================================================================
//function : GraphDS_EntitiesIterator
//purpose  : 
//=======================================================================

GraphDS_EntitiesIterator::GraphDS_EntitiesIterator 
  (const GraphDS_RelationGraph& G)  
{
  Initialize (G);
}

//=======================================================================
//function : GraphDS_EntitiesIterator
//purpose  : 
//=======================================================================

GraphDS_EntitiesIterator::GraphDS_EntitiesIterator 
  (const GraphDS_RelationGraph& G,
   const Handle(GraphDS_Entity)& E) 
{
  Initialize (G,E);
}


//=======================================================================
//function : GraphDS_EntitiesIterator
//purpose  : 
//=======================================================================

GraphDS_EntitiesIterator::GraphDS_EntitiesIterator 
  (const GraphDS_RelationGraph& G,
   const Handle(GraphDS_Relation)& R) 
{
  Initialize (G,R);
}


//=======================================================================
//function : Initialize
//purpose  : 
//=======================================================================

void GraphDS_EntitiesIterator::Initialize
  (const GraphDS_RelationGraph& G)  
{
  myEntities.Initialize(G.myEntities);
}


//=======================================================================
//function : Initialize
//purpose  : adjacent entities search
//=======================================================================

void GraphDS_EntitiesIterator::Initialize
  (const GraphDS_RelationGraph&,
   const Handle(GraphDS_Entity)& E) 
{
  myMap.Clear();

  Handle(GraphDS_Relation) REL;
  GraphDS_DataMapIteratorOfEntityRoleMap itv; 
  TColStd_MapIteratorOfMapOfTransient itr;

  for (itr.Initialize(E->GetRelations());itr.More();itr.Next()) {
    REL = Handle(GraphDS_Relation)::DownCast(itr.Key()); 
    if (REL->IsInput(E)) {
      for (itv.Initialize(REL->GetEntities());itv.More();itv.Next()) {
	if (itv.Value() !=  GraphDS_OnlyInput) {
	  myMap.Add(itv.Key());
	}
      }
    }
  }      
  myEntities.Initialize(myMap);
}     


//=======================================================================
//function : Initialize
//purpose  : 
//=======================================================================

void GraphDS_EntitiesIterator::Initialize 
  (const GraphDS_RelationGraph&, 
   const Handle(GraphDS_Relation)& R) 
{  
  myMap.Clear();
  GraphDS_DataMapIteratorOfEntityRoleMap itv; 
  for (itv.Initialize(R->GetEntities());itv.More();itv.Next()) {
    myMap.Add(itv.Key());
  }
  myEntities.Initialize(myMap);
}


//=======================================================================
//function : More
//purpose  : 
//=======================================================================

Standard_Boolean GraphDS_EntitiesIterator::More () const
{
  return myEntities.More();
}


//=======================================================================
//function : Next
//purpose  : 
//=======================================================================

void GraphDS_EntitiesIterator::Next () 
{
  myEntities.Next();
}


//=======================================================================
//function : Value
//purpose  : 
//=======================================================================

const Handle(GraphDS_Entity)& GraphDS_EntitiesIterator::Value () const 
{  
  return  *((Handle(GraphDS_Entity)*)& myEntities.Key());
  //return Handle(GraphDS_Entity)::DownCast(myEntities.Key());
}

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