EgtGeomKernel/GdbIterator.cpp

//----------------------------------------------------------------------------
//  EgalTech 2013-2013
//----------------------------------------------------------------------------
// File : GdbIterator.cpp           Data : 04.12.13        Versione : 1.4a3
// Contenuto : Implementazione della classe GdbIterator.
//
//
//
// Modifiche : 04.12.13 DS Creazione modulo.
//
//
//----------------------------------------------------------------------------

//--------------------------- Include ----------------------------------------
#include "stdafx.h"
#include "GdbIterator.h"
#include "Attribs.h"
#include <new>

using namespace std ;

//----------------------------------------------------------------------------
IGdbIterator*
CreateGdbIterator( void)
{
   return static_cast<IGdbIterator*> ( new GdbIterator) ;
}

//----------------------------------------------------------------------------
// GdbIterator
//----------------------------------------------------------------------------
GdbIterator::GdbIterator( void)
{
   m_pGDB = nullptr ;
   m_pCurrObj = nullptr ;
}

//----------------------------------------------------------------------------
GdbIterator::~GdbIterator( void)
{
  // TODO : togliere link da GdbGeom per essere notificato della cancellazione di nodi 
}

//----------------------------------------------------------------------------
bool
GdbIterator::SetGDB( IGeomDB* pGDB)
{
   m_pGDB = dynamic_cast<GeomDB*>( pGDB) ;

   return ( m_pGDB != nullptr) ;
}

//----------------------------------------------------------------------------
bool
GdbIterator::GoTo( int nId)
{
   if ( m_pGDB == nullptr)
      return false ;

   m_pCurrObj = m_pGDB->GetGdbObj( nId) ;

   return ( m_pCurrObj != nullptr) ;
}

//----------------------------------------------------------------------------
bool
GdbIterator::GoToFirstInGroup( int nIdGroup)
{
   GdbGroup* pGdbGroup ;


   if ( m_pGDB == nullptr)
      return false ;

  // recupero il gruppo
   pGdbGroup = m_pGDB->GetGdbGroup( nIdGroup) ;
   if ( pGdbGroup == nullptr) {
      m_pCurrObj = nullptr ;
      return false ;
   }

  // recupero l'oggetto
   m_pCurrObj = pGdbGroup->GetFirstObj() ;

   return ( m_pCurrObj != nullptr) ;
}

//----------------------------------------------------------------------------
bool
GdbIterator::GoToNext( void)
{
   if ( m_pGDB == nullptr  ||  m_pCurrObj == nullptr)
      return false ;

   m_pCurrObj = m_pCurrObj->GetNext() ;

   return ( m_pCurrObj != nullptr) ;
}

//----------------------------------------------------------------------------
bool
GdbIterator::GoToLastInGroup( int nIdGroup)
{
   if ( m_pGDB == nullptr)
      return false ;

  // recupero il gruppo
   GdbGroup* pGdbGroup ;
   pGdbGroup = m_pGDB->GetGdbGroup( nIdGroup) ;
   if ( pGdbGroup == nullptr) {
      m_pCurrObj = nullptr ;
      return false ;
   }

  // recupero l'oggetto
   m_pCurrObj = pGdbGroup->GetLastObj() ;

   return ( m_pCurrObj != nullptr) ;
}

//----------------------------------------------------------------------------
bool
GdbIterator::GoToPrev( void)
{
   if ( m_pGDB == nullptr  ||  m_pCurrObj == nullptr)
      return false ;

   m_pCurrObj = m_pCurrObj->GetPrev() ;

   return ( m_pCurrObj != nullptr) ;
}

//----------------------------------------------------------------------------
GdbType
GdbIterator::GetGdbType( void) const
{
   if ( m_pGDB == nullptr  ||  m_pCurrObj == nullptr)
      return GDB_NONE ;

  // se oggetto geometrico
   if ( GetGdbGeo( m_pCurrObj) != nullptr)
      return GDB_GEO ;
  // se gruppo
   else if ( GetGdbGroup( m_pCurrObj) != nullptr)
      return GDB_GROUP ;
  // altro
   else
      return GDB_NONE ;
}

//----------------------------------------------------------------------------
IGeoObj*
GdbIterator::GetGeoObj( void)
{
   if ( m_pGDB == nullptr  ||  m_pCurrObj == nullptr)
      return false ;

  // recupero l'oggetto Gdb
   const GdbGeo* pGdbGeo ;
   if ( ( pGdbGeo = GetGdbGeo( m_pCurrObj)) == nullptr)
      return nullptr ;

  // restituisco il suo contenuto geometrico
   return pGdbGeo->m_pGeoObj ;
}

//----------------------------------------------------------------------------
IGeoFrame3d*
GdbIterator::GetGeoFrame( void)
{
   if ( m_pGDB == nullptr  ||  m_pCurrObj == nullptr)
      return nullptr ;

   GdbGroup* pGdbGroup ;
   if ( ( pGdbGroup = GetGdbGroup( m_pCurrObj)) == nullptr)
      return nullptr ;

   return &( pGdbGroup->m_gfrFrame) ;
}

//----------------------------------------------------------------------------
bool
GdbIterator::GetGroupFrame( Frame3d& frGlob) const
{
   if ( m_pGDB == nullptr  ||  m_pCurrObj == nullptr)
      return false ;

   GdbGroup* pGdbGroup ;
   if ( ( pGdbGroup = GetGdbGroup( m_pCurrObj)) == nullptr)
      return false ;

  // copio il riferimento
   frGlob = pGdbGroup->m_gfrFrame.m_frF ;
   return true ;
}

//----------------------------------------------------------------------------
bool
GdbIterator::GetGroupGlobFrame( Frame3d& frGlob) const
{
   if ( m_pGDB == nullptr  ||  m_pCurrObj == nullptr)
      return false ;

   GdbGroup* pGdbGroup ;
   if ( ( pGdbGroup = GetGdbGroup( m_pCurrObj)) == nullptr)
      return false ;

   return pGdbGroup->GetGlobFrame( frGlob) ;
}

//----------------------------------------------------------------------------
int
GdbIterator::GetId( void) const
{
   if ( m_pGDB == nullptr  ||  m_pCurrObj == nullptr)
      return GDB_ID_NULL ;

   return m_pCurrObj->m_nId ;
}

//----------------------------------------------------------------------------
int
GdbIterator::GetParentId( void) const
{
   if ( m_pGDB == nullptr  ||  m_pCurrObj == nullptr)
      return GDB_ID_NULL ;

   return m_pCurrObj->GetParentId() ;
}

//----------------------------------------------------------------------------
// Attributes
//----------------------------------------------------------------------------
bool
GdbIterator::SetColor( Color cCol)
{
   if ( m_pGDB == nullptr  ||  m_pCurrObj == nullptr)
      return false ;

  // assegno il colore
   return m_pCurrObj->SetColor( cCol) ;
}

//----------------------------------------------------------------------------
bool
GdbIterator::GetColor( Color& cCol) const
{
   if ( m_pGDB == nullptr  ||  m_pCurrObj == nullptr)
      return false ;

  // recupero il colore
   return m_pCurrObj->GetColor( cCol) ;
}