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

  Program:   vv
  Module:    $RCSfile: clitkImageToImageGenericFilter.txx,v $
  Language:  C++
  Date:      $Date: 2010/03/24 20:35:08 $
  Version:   $Revision: 1.9 $
  Author :   Joel Schaerer <joel.schaerer@creatis.insa-lyon.fr>
  David Sarrut <david.sarrut@creatis.insa-lyon.fr>

  Copyright (C) 2008
  Léon Bérard cancer center http://oncora1.lyon.fnclcc.fr
  CREATIS-LRMN http://www.creatis.insa-lyon.fr

  This program 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, version 3 of the License.

  This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.

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

// //--------------------------------------------------------------------
// template<class ImageType> 
// void clitk::ImageToImageGenericFilterBase::SetNextOutput(typename ImageType::Pointer output) {
//   if (mOutputFilenames.size())
//     {
//       clitk::writeImage<ImageType>(output, mOutputFilenames.front(), mIOVerbose);
//       mOutputFilenames.pop_front();
//     }
//   if (mInputVVImages.size()) //We assume that if a vv image is set as input, we want one as the output
//     mOutputVVImages.push_back(vvImageFromITK<ImageType::ImageDimension,typename ImageType::PixelType>(output));
// }
// //--------------------------------------------------------------------


// //--------------------------------------------------------------------
// template<class ImageType> 
// typename ImageType::Pointer clitk::ImageToImageGenericFilterBase::GetInput(unsigned int n) {
//   if (mInputFilenames.size() > n) {
//     return clitk::readImage<ImageType>(mInputFilenames[n], mIOVerbose);
//   }
//   else if (mInputVVImages.size() > n)
//     return typename ImageType::Pointer(const_cast<ImageType*>(vvImageToITK<ImageType>(mInputVVImages[n]).GetPointer()));
//   else
//     {
//       assert(false); //No input, this shouldn't happen
//       return typename ImageType::Pointer(NULL);
//     }
// }
// //--------------------------------------------------------------------


//--------------------------------------------------------------------
template<class FilterType>
clitk::ImageToImageGenericFilter<FilterType>::ImageToImageGenericFilter(std::string filterName) :
  ImageToImageGenericFilterBase(filterName), 
  mImageTypesManager(static_cast<FilterType*>(this))
{
}
//--------------------------------------------------------------------


//--------------------------------------------------------------------
template<class FilterType>
bool clitk::ImageToImageGenericFilter<FilterType>::Update() {
  GetInputImageDimensionAndPixelType(mDim,mPixelTypeName,mNbOfComponents);    
  
  // Check ImageType
  if (!CheckImageType()) {
    if (mFailOnImageTypeError) ImageTypeError();
    else SetImageTypeError();
    return false;
  }

  // Go ! Call the right templatized function
  mImageTypesManager.DoIt(mDim, mNbOfComponents, mPixelTypeName);
  return true;
}
//--------------------------------------------------------------------

//--------------------------------------------------------------------
template<class FilterType>
bool clitk::ImageToImageGenericFilter<FilterType>::CheckImageType(unsigned int dim,unsigned int ncomp, std::string pixeltype)
{
  return static_cast<bool>(mImageTypesManager.mMapOfImageTypeToFunction[dim][ncomp][pixeltype]);
}
//--------------------------------------------------------------------


//--------------------------------------------------------------------
template<class FilterType>
bool clitk::ImageToImageGenericFilter<FilterType>::CheckImageType()
{
  return static_cast<bool>(mImageTypesManager.mMapOfImageTypeToFunction[mDim][mNbOfComponents][mPixelTypeName]);
}
//--------------------------------------------------------------------


//--------------------------------------------------------------------
template<class FilterType>
std::string clitk::ImageToImageGenericFilter<FilterType>::GetAvailableImageTypes() {
  std::ostringstream oss;
  oss << "The filter <" << mFilterName << "> manages:" << std::endl;
    
  typedef typename ImageTypesManager<FilterType>::MapOfImageComponentsToFunctionType::const_iterator MCompItType;
  typedef typename ImageTypesManager<FilterType>::MapOfImageDimensionToFunctionType::const_iterator MDimItType;
  typedef typename ImageTypesManager<FilterType>::MapOfPixelTypeToFunctionType::const_iterator MPixelItType;
  for (MDimItType i=mImageTypesManager.mMapOfImageTypeToFunction.begin();
       i!=mImageTypesManager.mMapOfImageTypeToFunction.end();
       i++) {
    for (MCompItType j=(*i).second.begin(); j!= (*i).second.end(); j++) {
      for (MPixelItType k=(*j).second.begin(); k!= (*j).second.end(); k++) {
        oss << "Dim: " << (*i).first;
	if ((*j).first != 1) oss << ", Components: " << (*j).first;
	oss << ", Type: " << (*k).first << std::endl;
      }
    }
  }
  return oss.str();
}
//--------------------------------------------------------------------