/*=========================================================================
 *
 *  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.
 *
 *=========================================================================*/
#ifndef itkLabelObjectLine_hxx
#define itkLabelObjectLine_hxx


namespace itk
{
template <unsigned int VImageDimension>
LabelObjectLine<VImageDimension>::LabelObjectLine()
  : m_Length(SizeValueType{})
{
  m_Index.Fill(IndexValueType{});
}

template <unsigned int VImageDimension>
LabelObjectLine<VImageDimension>::LabelObjectLine(const IndexType & idx, const LengthType & length)
  : m_Index(idx)
  , m_Length(length)
{}

template <unsigned int VImageDimension>
void
LabelObjectLine<VImageDimension>::SetIndex(const IndexType & idx)
{
  m_Index = idx;
}

template <unsigned int VImageDimension>
auto
LabelObjectLine<VImageDimension>::GetIndex() const -> const IndexType &
{
  return m_Index;
}

template <unsigned int VImageDimension>
void
LabelObjectLine<VImageDimension>::SetLength(const LengthType length)
{
  m_Length = length;
}

template <unsigned int VImageDimension>
auto
LabelObjectLine<VImageDimension>::GetLength() const -> const LengthType &
{
  return m_Length;
}

template <unsigned int VImageDimension>
bool
LabelObjectLine<VImageDimension>::HasIndex(const IndexType idx) const
{
  // are we talking about the right line ?
  for (unsigned int i = 1; i < ImageDimension; ++i)
  {
    if (m_Index[i] != idx[i])
    {
      return false;
    }
  }
  return idx[0] >= m_Index[0] && idx[0] < m_Index[0] + (OffsetValueType)m_Length;
}

template <unsigned int VImageDimension>
bool
LabelObjectLine<VImageDimension>::IsNextIndex(const IndexType & idx) const
{
  // are we talking about the right line ?
  for (unsigned int i = 1; i < ImageDimension; ++i)
  {
    if (m_Index[i] != idx[i])
    {
      return false;
    }
  }
  return idx[0] == m_Index[0] + (OffsetValueType)m_Length;
}

/**
 * This function just calls the
 * header/self/trailer print methods, which can be overridden by
 * subclasses.
 */
template <unsigned int VImageDimension>
void
LabelObjectLine<VImageDimension>::Print(std::ostream & os, Indent indent) const
{
  this->PrintHeader(os, indent);
  this->PrintSelf(os, indent.GetNextIndent());
  this->PrintTrailer(os, indent);
}

/**
 * Define a default print header for all objects.
 */
template <unsigned int VImageDimension>
void
LabelObjectLine<VImageDimension>::PrintHeader(std::ostream & os, Indent indent) const
{
  os << indent << " (" << this << ")\n";
}

/**
 * Define a default print body for all objects.
 */
template <unsigned int VImageDimension>
void
LabelObjectLine<VImageDimension>::PrintSelf(std::ostream & os, Indent indent) const
{
  os << indent << "Index: " << this->m_Index << std::endl;
  os << indent << "Length: " << this->m_Length << std::endl;
}
} // namespace itk

#endif
