/*
# ---------------------------------------------------------------------
#
# Copyright (c) CREATIS (Centre de Recherche en Acquisition et Traitement de l'Image 
#                        pour la Santé)
# Authors : Eduardo Davila, Frederic Cervenansky, Claire Mouton
# Previous Authors : Laurent Guigues, Jean-Pierre Roux
# CreaTools website : www.creatis.insa-lyon.fr/site/fr/creatools_accueil
#
#  This software is governed by the CeCILL-B license under French law and 
#  abiding by the rules of distribution of free software. You can  use, 
#  modify and/ or redistribute the software under the terms of the CeCILL-B 
#  license as circulated by CEA, CNRS and INRIA at the following URL 
#  http://www.cecill.info/licences/Licence_CeCILL-B_V1-en.html 
#  or in the file LICENSE.txt.
#
#  As a counterpart to the access to the source code and  rights to copy,
#  modify and redistribute granted by the license, users are provided only
#  with a limited warranty  and the software's author,  the holder of the
#  economic rights,  and the successive licensors  have only  limited
#  liability. 
#
#  The fact that you are presently reading this means that you have had
#  knowledge of the CeCILL-B license and that you accept its terms.
# ------------------------------------------------------------------------
*/


#include "creaImageIOSimpleView.h"
#include "boost/filesystem/operations.hpp"
#include "boost/filesystem/fstream.hpp"

namespace creaImageIO
{
	bool SimpleView::readFile(std::vector<std::string> i_filenames, std::vector<vtkImageData *> &i_img)
	{
			bool bresult, bfinal = true;
			ImageReader *mReader = new ImageReader();
			std::vector<std::string>::iterator it = i_filenames.begin();
			for (; it != i_filenames.end(); it++)
			{
				bresult = mReader->CanRead((*it).c_str());
				if(bresult)
				{
					i_img.push_back(mReader->ReadImage((*it).c_str()));
				}
				else
				{
					bfinal = false;
				}
			}
			delete mReader;
			return bfinal;	
	}

	bool SimpleView::readDirectory(const std::string i_pathname, std::vector<vtkImageData *> &i_imgs)
	{
			bool bresult = true;
			ImageReader *mReader = new ImageReader();
                        std::vector<std::string> names;
			bresult = boost::filesystem::exists( i_pathname );
			if (bresult)
			{
				boost::filesystem::directory_iterator itr(i_pathname);
				boost::filesystem::directory_iterator end_itr; 
				for(;itr != end_itr; ++itr)
				{
					if (!boost::filesystem::is_directory(itr->status()))
					{
						if( mReader->CanRead(itr->path().string()) )
						{
							names.push_back(itr->path().string()); 
						}
					}
				}
				std::sort (names.begin(), names.end()); // make sure names are in lexicographical order
				int lgr = names.size();
				
				for(int i=0; i<lgr; i++)
				{
                    		   std::cout << names[i] << std::endl;
				   i_imgs.push_back( mReader->ReadImage(names[i]) );  
				}			
			}
			return bresult;
	}
}