/*
    Copyright 2007-2008 Andreas Pokorny, Christian Henning
    Use, modification and distribution are subject to the Boost Software License,
    Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
    http://www.boost.org/LICENSE_1_0.txt).
*/

/*************************************************************************************************/

#ifndef BOOST_GIL_EXTENSION_IO_DETAIL_PATH_SPEC_HPP_INCLUDED
#define BOOST_GIL_EXTENSION_IO_DETAIL_PATH_SPEC_HPP_INCLUDED

////////////////////////////////////////////////////////////////////////////////////////
/// \file
/// \brief
/// \author Andreas Pokorny, Christian Henning \n
///
/// \date   2007-2008 \n
///
////////////////////////////////////////////////////////////////////////////////////////

#include <cstdlib>
#include <malloc.h>

#ifdef BOOST_GIL_IO_ADD_FS_PATH_SUPPORT
#include <boost/filesystem/path.hpp>
#endif // BOOST_GIL_IO_ADD_FS_PATH_SUPPORT
namespace boost{ namespace gil{ namespace detail{

template<typename P> struct is_supported_path_spec       : mpl::false_ {};
template<> struct is_supported_path_spec< std::string >  : mpl::true_ {};
template<> struct is_supported_path_spec< std::wstring > : mpl::true_ {};
template<> struct is_supported_path_spec< const char* >  : mpl::true_ {};
template<> struct is_supported_path_spec< char* >        : mpl::true_ {};

template<int i> struct is_supported_path_spec<const char [i]> : mpl::true_ {};
template<int i> struct is_supported_path_spec<char [i]> : mpl::true_ {};

#ifdef BOOST_GIL_IO_ADD_FS_PATH_SUPPORT
template<typename String, typename Traits>
struct is_supported_path_spec<filesystem::basic_path<String,Traits> > : mpl::true_
{};
#endif // BOOST_GIL_IO_ADD_FS_PATH_SUPPORT

inline std::string convert_to_string( std::string const& obj)
{
   return obj;
}

inline std::string convert_to_string( std::wstring const& s )
{
	std::size_t len = wcslen( s.c_str() );
	char* c = reinterpret_cast<char*>( alloca( len ));
	wcstombs( c, s.c_str(), len );

   return std::string( c, c + len );
}

inline std::string convert_to_string( const char* str )
{
    return std::string( str );
}

inline std::string convert_to_string( char* str )
{
    return std::string( str );
}

#ifdef BOOST_GIL_IO_ADD_FS_PATH_SUPPORT
template<typename String, typename T>
inline std::string convert_to_string( filesystem::basic_path<String,T> const& path )
{
    return convert_to_string( path.string() );
}
#endif // BOOST_GIL_IO_ADD_FS_PATH_SUPPORT

}}}

#endif // BOOST_GIL_EXTENSION_IO_DETAIL_PATH_SPEC_HPP_INCLUDED