text: // --------------------------------------------------------------------------
  //                   OpenMS -- Open-Source Mass Spectrometry
  // --------------------------------------------------------------------------
  // Copyright The OpenMS Team -- Eberhard Karls University Tuebingen,
  // ETH Zurich, and Freie Universitaet Berlin 2002-2016.
  //
  // This software is released under a three-clause BSD license:
  //  * Redistributions of source code must retain the above copyright
  //    notice, this list of conditions and the following disclaimer.
  //  * Redistributions in binary form must reproduce the above copyright
  //    notice, this list of conditions and the following disclaimer in the
  //    documentation and/or other materials provided with the distribution.
  //  * Neither the name of any author or any participating institution
  //    may be used to endorse or promote products derived from this software
  //    without specific prior written permission.
  // For a full list of authors, refer to the file AUTHORS.
  // --------------------------------------------------------------------------
  // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  // AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  // ARE DISCLAIMED. IN NO EVENT SHALL ANY OF THE AUTHORS OR THE CONTRIBUTING
  // INSTITUTIONS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  // EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  // PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
  // OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
  // WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
  // OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
  // ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  //
  // --------------------------------------------------------------------------
  // $Maintainer: Timo Sachsenberg $
  // $Authors: Guillaume Belz $
  // --------------------------------------------------------------------------
  
  #ifndef OPENMS_FORMAT_HANDLERS_FIDHANDLER_H
  #define OPENMS_FORMAT_HANDLERS_FIDHANDLER_H
  
  #include <OpenMS/DATASTRUCTURES/String.h>
  #include <fstream>
  
  namespace OpenMS
  {
    namespace Internal
    {
      /**
        @brief Read-only fid File handler for XMass Analysis.
  
        fid File contains intensity array. Intensity for each point are coded in 4 bytes integer.
  
        @note Do not use this class directly. It is only needed for XMassFile.
      */
      class OPENMS_DLLAPI FidHandler :
        public std::ifstream
      {
  public:
        /**
          @brief Constructor with filename.
  
          Open fid File as stream and initialize index.
  
          @param filename to fid File.
        */
        explicit FidHandler(const String & filename);
  
        /// Destructor
        virtual ~FidHandler();
  
        /// Get index of current position (without position moving).
        Size getIndex();
  
        /// Get intensity of current position and move to next position.
        Size getIntensity();
  
  private:
        /// Private default constructor
        FidHandler();
  
        /// Index of position
        Size index_;
      };
  
    }   // namespace Internal
  } // namespace OpenMS
  
  #endif // OPENMS_FORMAT_HANDLERS_FIDHANDLER_H
  