text: /**********************************************************************
   *
   *    FILE:            DrawElementsUInt.cpp
   *
   *    DESCRIPTION:    Read/Write osg::DrawElementsUInt in binary format to disk.
   *
   *    CREATED BY:        Copied from DrawElementsUShort.cpp by Marco Jez
   *                    
   *
   *    HISTORY:        Created 20.3.2003
   *
   *    Copyright 2003 VR-C
   **********************************************************************/
  
  #include "Exception.h"
  #include "DrawElementsUInt.h"
  #include "PrimitiveSet.h"
  #include <osg/Endian>
  
  using namespace ive;
  
  void DrawElementsUInt::write(DataOutputStream* out){
      // Write DrawElementsUInt's identification.
      out->writeInt(IVEDRAWELEMENTSUINT);
  
      // If the osg class is inherited by any other class we should also write this to file.
      osg::PrimitiveSet*  prim = dynamic_cast<osg::PrimitiveSet*>(this);
      if(prim){
          ((ive::PrimitiveSet*)(prim))->write(out);
      }
      else
          throw Exception("DrawElementsUInt::write(): Could not cast this osg::DrawElementsUInt to an osg::PrimitiveSet.");
      // Write DrawElementsUInt's properties.
  
      // Write array length and its elements.
      out->writeInt(size());
      out->writeCharArray((const char*)&front(), size() * INTSIZE);
  }
  
  void DrawElementsUInt::read(DataInputStream* in)
  {
      // Read DrawElementsUInt's identification.
      int id = in->peekInt();
      if(id == IVEDRAWELEMENTSUINT){
          // Code to read DrawElementsUInt's properties.
          id = in->readInt();
          // If the osg class is inherited by any other class we should also read this from file.
          osg::PrimitiveSet*  prim = dynamic_cast<osg::PrimitiveSet*>(this);
          if(prim){
              ((ive::PrimitiveSet*)(prim))->read(in);
          }
          else
              throw Exception("DrawElementsUInt::read(): Could not cast this osg::DrawElementsUInt to an osg::PrimitiveSet.");
  
          // Read array length and its elements.
          int size = in->readInt();
          resize(size);
          in->readCharArray((char*)&front(), size * INTSIZE);
  
          if (in->_byteswap)
          {
             for (int i = 0 ; i < size ; i++ )
             {
                  osg::swapBytes4((char*)&((*this)[i])) ;
             }
          }        
      }
      else{
          throw Exception("DrawElementsUInt::read(): Expected DrawElementsUInt identification.");
      }
  }
  