/*=========================================================================

  Program:   Visualization Toolkit
  Module:    vtkVariantCreate.h

-------------------------------------------------------------------------
  Copyright 2008 Sandia Corporation.
  Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
  the U.S. Government retains certain rights in this software.
-------------------------------------------------------------------------

  Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
  All rights reserved.
  See Copyright.txt or http://www.kitware.com/Copyright.htm for details.

     This software is distributed WITHOUT ANY WARRANTY; without even
     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
     PURPOSE.  See the above copyright notice for more information.

=========================================================================*/

/**
 * @class   vtkVariantCreate
 *
 * Performs an explicit conversion from an arbitrary type to a vtkVariant.  Provides
 * callers with a "hook" for defining conversions from user-defined types to vtkVariant.
 *
 * @par Thanks:
 * Developed by Timothy M. Shead (tshead@sandia.gov) at Sandia National Laboratories.
 */

#ifndef vtkVariantCreate_h
#define vtkVariantCreate_h

#include <typeinfo> // for warnings

template <typename T>
vtkVariant vtkVariantCreate(const T&)
{
  vtkGenericWarningMacro(
    << "Cannot convert unsupported type [" << typeid(T).name() << "] to vtkVariant.  "
    << "Create a vtkVariantCreate<> specialization to eliminate this warning.");

  return vtkVariant();
}

template <>
inline vtkVariant vtkVariantCreate<char>(const char& value)
{
  return value;
}

template <>
inline vtkVariant vtkVariantCreate<unsigned char>(const unsigned char& value)
{
  return value;
}

template <>
inline vtkVariant vtkVariantCreate<short>(const short& value)
{
  return value;
}

template <>
inline vtkVariant vtkVariantCreate<unsigned short>(const unsigned short& value)
{
  return value;
}

template <>
inline vtkVariant vtkVariantCreate<int>(const int& value)
{
  return value;
}

template <>
inline vtkVariant vtkVariantCreate<unsigned int>(const unsigned int& value)
{
  return value;
}

template <>
inline vtkVariant vtkVariantCreate<long>(const long& value)
{
  return value;
}

template <>
inline vtkVariant vtkVariantCreate<unsigned long>(const unsigned long& value)
{
  return value;
}

template <>
inline vtkVariant vtkVariantCreate<long long>(const long long& value)
{
  return value;
}

template <>
inline vtkVariant vtkVariantCreate<unsigned long long>(const unsigned long long& value)
{
  return value;
}

template <>
inline vtkVariant vtkVariantCreate<float>(const float& value)
{
  return value;
}

template <>
inline vtkVariant vtkVariantCreate<double>(const double& value)
{
  return value;
}

template <>
inline vtkVariant vtkVariantCreate<vtkStdString>(const vtkStdString& value)
{
  return value;
}

template <>
inline vtkVariant vtkVariantCreate<vtkUnicodeString>(const vtkUnicodeString& value)
{
  return value;
}

template <>
inline vtkVariant vtkVariantCreate<vtkVariant>(const vtkVariant& value)
{
  return value;
}

#endif

// VTK-HeaderTest-Exclude: vtkVariantCreate.h
