Point.h

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// GMTL is (C) Copyright 2001-2010 by Allen Bierbaum
// Distributed under the GNU Lesser General Public License 2.1 with an
// addendum covering inlined code. (See accompanying files LICENSE and
// LICENSE.addendum or http://www.gnu.org/copyleft/lesser.txt)

#ifndef _GMTL_POINT_H_
#define _GMTL_POINT_H_

#include <gmtl/Defines.h>
#include <gmtl/VecBase.h>

namespace gmtl
{

template<class DATA_TYPE, unsigned SIZE>
class Point : public VecBase<DATA_TYPE, SIZE>
{
public:
   typedef DATA_TYPE DataType;
   enum Params { Size = SIZE };

   typedef VecBase<DATA_TYPE, SIZE> BaseType;
   typedef Point<DATA_TYPE, SIZE> VecType;

public:
   Point()
   {
      for (unsigned i = 0; i < SIZE; ++i)
         this->mData[i] = (DATA_TYPE)0;
   }

   /*
   Point(const Point<DATA_TYPE, SIZE>& rVec)
      : BaseType(static_cast<BaseType>(rVec))
   {;}
   */

#ifdef GMTL_NO_METAPROG
   Point(const VecBase<DATA_TYPE, SIZE>& rVec)
      : BaseType(rVec)
   {;}
#else
   template<typename REP2>
   Point( const VecBase<DATA_TYPE, SIZE, REP2>& rVec )
      : BaseType( rVec )
   {
   }
#endif

   Point(const DATA_TYPE& val0,const DATA_TYPE& val1)
   : BaseType(val0, val1)
   {
      // @todo need compile time assert
      gmtlASSERT( SIZE == 2 && "out of bounds element access in Point" );
   }

   Point(const DATA_TYPE& val0,const DATA_TYPE& val1,const DATA_TYPE& val2)
   : BaseType(val0, val1, val2)
   {
      // @todo need compile time assert
      gmtlASSERT( SIZE == 3 && "out of bounds element access in Point" );
   }

   Point(const DATA_TYPE& val0,const DATA_TYPE& val1,const DATA_TYPE& val2,const DATA_TYPE& val3)
   : BaseType(val0, val1, val2, val3)
   {
      // @todo need compile time assert
      gmtlASSERT( SIZE == 4 && "out of bounds element access in Point" );
   }

#ifdef GMTL_NO_METAPROG
   inline VecType& operator=(const VecBase<DATA_TYPE,SIZE>& rhs)
   {
      BaseType::operator=(rhs);
      return *this;
   }
#else
   template<typename REP2>
   inline VecType& operator=(const VecBase<DATA_TYPE,SIZE,REP2>& rhs)
   {
      BaseType::operator=(rhs);
      return *this;
   }
#endif

};

// --- helper types --- //
typedef Point<int,2> Point2i;
typedef Point<float,2> Point2f;
typedef Point<double,2> Point2d;
typedef Point<int, 3> Point3i;
typedef Point<float,3> Point3f;
typedef Point<double,3> Point3d;
typedef Point<int, 4> Point4i;
typedef Point<float,4> Point4f;
typedef Point<double,4> Point4d;


}

#endif