/*=========================================================================
 *
 *  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 itkBSplineExponentialDiffeomorphicTransformParametersAdaptor_hxx
#define itkBSplineExponentialDiffeomorphicTransformParametersAdaptor_hxx


namespace itk
{

template <typename TTransform>
BSplineExponentialDiffeomorphicTransformParametersAdaptor<
  TTransform>::BSplineExponentialDiffeomorphicTransformParametersAdaptor()
{
  this->m_NumberOfControlPointsForTheConstantVelocityField.Fill(4);
  this->m_NumberOfControlPointsForTheConstantVelocityFieldSetTime = 0;
  this->m_NumberOfControlPointsForTheUpdateField.Fill(4);
  this->m_NumberOfControlPointsForTheUpdateFieldSetTime = 0;
}

/**
 * set mesh size for velocity field
 */
template <typename TTransform>
void
BSplineExponentialDiffeomorphicTransformParametersAdaptor<TTransform>::SetMeshSizeForTheConstantVelocityField(
  const ArrayType & meshSize)
{
  ArrayType numberOfControlPoints;
  numberOfControlPoints.Fill(0);
  for (unsigned int d = 0; d < SpaceDimension; ++d)
  {
    if (meshSize[d] > 0)
    {
      numberOfControlPoints[d] = meshSize[d] + this->m_Transform->GetSplineOrder();
    }
  }
  this->SetNumberOfControlPointsForTheConstantVelocityField(numberOfControlPoints);
}

/**
 * set mesh size for update field
 */
template <typename TTransform>
void
BSplineExponentialDiffeomorphicTransformParametersAdaptor<TTransform>::SetMeshSizeForTheUpdateField(
  const ArrayType & meshSize)
{
  ArrayType numberOfControlPoints;
  numberOfControlPoints.Fill(0);
  for (unsigned int d = 0; d < SpaceDimension; ++d)
  {
    if (meshSize[d] > 0)
    {
      numberOfControlPoints[d] = meshSize[d] + this->m_Transform->GetSplineOrder();
    }
  }
  this->SetNumberOfControlPointsForTheUpdateField(numberOfControlPoints);
}

/**
 * set number of control points for velocity field
 */
template <typename TTransform>
void
BSplineExponentialDiffeomorphicTransformParametersAdaptor<
  TTransform>::SetNumberOfControlPointsForTheConstantVelocityField(const ArrayType & controlPoints)
{
  this->m_NumberOfControlPointsForTheConstantVelocityFieldSetTime = this->GetMTime();
  if (controlPoints != this->m_NumberOfControlPointsForTheConstantVelocityField)
  {
    this->m_NumberOfControlPointsForTheConstantVelocityField = controlPoints;
    this->Modified();
  }
}

/**
 * set number of control points for update field
 */
template <typename TTransform>
void
BSplineExponentialDiffeomorphicTransformParametersAdaptor<TTransform>::SetNumberOfControlPointsForTheUpdateField(
  const ArrayType & controlPoints)
{
  this->m_NumberOfControlPointsForTheUpdateFieldSetTime = this->GetMTime();
  if (controlPoints != this->m_NumberOfControlPointsForTheUpdateField)
  {
    this->m_NumberOfControlPointsForTheUpdateField = controlPoints;
    this->Modified();
  }
}

template <typename TTransform>
void
BSplineExponentialDiffeomorphicTransformParametersAdaptor<TTransform>::AdaptTransformParameters()
{
  Superclass::AdaptTransformParameters();

  if (this->m_NumberOfControlPointsForTheUpdateFieldSetTime > 0)
  {
    this->m_Transform->SetNumberOfControlPointsForTheUpdateField(this->m_NumberOfControlPointsForTheUpdateField);
  }
  if (this->m_NumberOfControlPointsForTheConstantVelocityFieldSetTime > 0)
  {
    this->m_Transform->SetNumberOfControlPointsForTheConstantVelocityField(
      this->m_NumberOfControlPointsForTheConstantVelocityField);
  }
}

template <typename TTransform>
void
BSplineExponentialDiffeomorphicTransformParametersAdaptor<TTransform>::PrintSelf(std::ostream & os, Indent indent) const
{
  Superclass::PrintSelf(os, indent);

  os << indent << "B-spline parameters: " << std::endl;
  os << indent << "  number of control points for the velocity field = "
     << this->m_NumberOfControlPointsForTheConstantVelocityField << std::endl;
}

} // namespace itk

#endif