/*=========================================================================
 *
 *  Copyright NumFOCUS
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *         https://www.apache.org/licenses/LICENSE-2.0.txt
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 *
 *=========================================================================*/
/*=========================================================================
 *
 *  Portions of this file are subject to the VTK Toolkit Version 3 copyright.
 *
 *  Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
 *
 *  For complete copyright, license and disclaimer of warranty information
 *  please refer to the NOTICE file at the top of the ITK source tree.
 *
 *=========================================================================*/
#ifndef itkThresholdLabelerImageFilter_hxx
#define itkThresholdLabelerImageFilter_hxx

#include "itkPrintHelper.h"

namespace itk
{

template <typename TInputImage, typename TOutputImage>
ThresholdLabelerImageFilter<TInputImage, TOutputImage>::ThresholdLabelerImageFilter()
  : m_LabelOffset(OutputPixelType{})
{
  m_Thresholds.clear();
  m_RealThresholds.clear();
}

template <typename TInputImage, typename TOutputImage>
void
ThresholdLabelerImageFilter<TInputImage, TOutputImage>::BeforeThreadedGenerateData()
{
  auto size = static_cast<unsigned int>(m_Thresholds.size());

  for (unsigned int i = 1; i < size; ++i)
  {
    if (m_Thresholds[i - 1] > m_Thresholds[i])
    {
      itkExceptionMacro("Thresholds must be sorted.");
    }
  }

  // Set up the functor values
  this->GetFunctor().SetThresholds(m_RealThresholds);
  this->GetFunctor().SetLabelOffset(m_LabelOffset);
}

template <typename TInputImage, typename TOutputImage>
void
ThresholdLabelerImageFilter<TInputImage, TOutputImage>::PrintSelf(std::ostream & os, Indent indent) const
{
  using namespace print_helper;

  Superclass::PrintSelf(os, indent);

  os << indent << "Thresholds: " << m_Thresholds << std::endl;
  os << indent << "Real Thresholds: " << m_RealThresholds << std::endl;
  os << indent << "LabelOffset: " << m_LabelOffset << std::endl;
}
} // end namespace itk

#endif
