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/*
//
// Copyright 1997-2009 Torsten Rohlfing
//
// Copyright 2004-2011 SRI International
//
// This file is part of the Computational Morphometry Toolkit.
//
// http://www.nitrc.org/projects/cmtk/
//
// The Computational Morphometry Toolkit is free software: you can
// redistribute it and/or modify it under the terms of the GNU General Public
// License as published by the Free Software Foundation, either version 3 of
// the License, or (at your option) any later version.
//
// The Computational Morphometry Toolkit is distributed in the hope that it
// will be useful, but WITHOUT ANY WARRANTY; without even the implied
// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License along
// with the Computational Morphometry Toolkit. If not, see
// <http://www.gnu.org/licenses/>.
//
// $Revision: 5436 $
//
// $LastChangedDate: 2018-12-10 19:01:20 -0800 (Mon, 10 Dec 2018) $
//
// $LastChangedBy: torstenrohlfing $
//
*/
#ifndef __cmtkFileHeader_h_included_
#define __cmtkFileHeader_h_included_
#include <cmtkconfig.h>
#include <IO/cmtkFileConstHeader.h>
namespace
cmtk
{
/** \addtogroup IO */
//@{
/** Read and write ccess to fields in a binary file header.
*/
class FileHeader
: public FileConstHeader
{
public:
/// Constructor.
FileHeader( void *const header, const bool isBigEndian = true ) : FileConstHeader( header, isBigEndian )
{
this->m_Header = static_cast<char*>( header );
}
/// Store field of arbitrary type to header.
template<class T> void StoreField( const size_t offset, T value )
{
#ifdef WORDS_BIGENDIAN
if ( (sizeof(T) > 1) && ! this->m_IsBigEndian ) value = Memory::ByteSwap( value );
#else
if ( (sizeof(T) > 1) && this->m_IsBigEndian ) value = Memory::ByteSwap( value );
#endif
memcpy( this->m_Header+offset, &value, sizeof( T ) );
}
/// Store null-terminated string to header.
void StoreFieldString( const size_t offset, const char* value, const size_t maxlen = 0 )
{
if ( maxlen )
strncpy( this->m_Header+offset, value, maxlen );
else
strcpy( this->m_Header+offset, value );
}
private:
/// Pointer to the binary header.
char *m_Header;
};
//@}
} // namespace cmtk
#endif // #ifndef __cmtkFileHeader_h_included_
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