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

  Program:   Insight Segmentation & Registration Toolkit
  Module:    itkNumericSeriesFileNames.h
  Language:  C++
  Date:      $Date$
  Version:   $Revision$

  Copyright (c) Insight Software Consortium. All rights reserved.
  See ITKCopyright.txt or http://www.itk.org/HTML/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 notices for more information.

=========================================================================*/
#ifndef __itkNumericSeriesFileNames_h
#define __itkNumericSeriesFileNames_h

#ifdef _MSC_VER
#pragma warning ( disable : 4786 )
#endif

#include "itkObject.h"
#include "itkObjectFactory.h"
#include "itkExceptionObject.h"
#include <vector>

namespace itk
{

/** \class NumericSeriesFileNames
 * \brief Generate an ordered sequence of filenames.
 *
 * This class generate an ordered sequence of files whose filenames
 * contain a single unique, non-negative, integral value
 * (e.g. test.1.png, test2.png, foo.3, etc.). 
 * 
 * The file name is created from a sprintf-style series format which
 * should contain an integer format string like "%d". Bad formats will
 * cause the series reader to throw an exception.
 *
 * \ingroup IOFilters
 *
 */
class ITK_EXPORT NumericSeriesFileNames : public Object
{
public:
  /** Standard class typedefs. */
  typedef NumericSeriesFileNames Self;
  typedef Object                 Superclass;
  typedef SmartPointer<Self>     Pointer;
  
  /** Method for creation through the object factory. */
  itkNewMacro(Self);

  /** Run-time type information (and related methods). */
  itkTypeMacro(NumericSeriesFileNames, Object);

  /* -------- Define the API for NumericSeriesFileNames ----------- */

  /** Use this method to set the starting index of the numeric series.
   * The default value is 1. */
  itkSetMacro(StartIndex,unsigned long);
  itkGetConstMacro(StartIndex,unsigned long);

  /** Set the end index of the numeric series. The default is 1. */
  itkSetMacro(EndIndex,unsigned long);
  itkGetConstMacro(EndIndex,unsigned long);

  /** Set the increment of the index of the numeric series. The
   * default value is 1.  */
  itkSetMacro(IncrementIndex,unsigned long);
  itkGetConstMacro(IncrementIndex,unsigned long);

  /** The format string used to generate the series. Different subclasses
   * require different characteristics of this string. For example, the
   * subclass NumericSeriesFileNames requires a "%d" or some integral
   * format specified to be embedded in the string. Default is "%d". */
  itkSetStringMacro(SeriesFormat);
  itkGetStringMacro(SeriesFormat);

  /** Returns a vector containing the series' file names. The file
    * names are ordered by Index. */
  const std::vector<std::string> &GetFileNames ();

protected:
  NumericSeriesFileNames();
  ~NumericSeriesFileNames() {};
  void PrintSelf(std::ostream& os, Indent indent) const;
  
private:
  NumericSeriesFileNames(const Self&); //purposely not implemented
  void operator=(const Self&); //purposely not implemented
  
  unsigned long m_StartIndex;
  unsigned long m_EndIndex;
  unsigned long m_IncrementIndex;

  /** A string for formatting the names of files in the series. */
  std::string m_SeriesFormat;

  std::vector<std::string>  m_FileNames;
};

} //namespace ITK

#endif // __itkNumericSeriesFileNames_h