itkHistogramAlgorithmBase.h

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/*=========================================================================
 *
 *  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
 *
 *         http://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 itkHistogramAlgorithmBase_h
#define itkHistogramAlgorithmBase_h
 
#include "itkMacro.h"
#include "itkObjectFactory.h"
#include "itkObject.h"
 
namespace itk
{
template <typename TInputHistogram>
class ITK_TEMPLATE_EXPORT HistogramAlgorithmBase : public Object
{
public:
  using Self = HistogramAlgorithmBase;
  using Superclass = Object;
  using Pointer = SmartPointer<Self>;
  using ConstPointer = SmartPointer<const Self>;
 
  itkTypeMacro(HistogramAlgorithmBase, Object);
 
  using InputHistogramType = TInputHistogram;
 
  void
  SetInputHistogram(const TInputHistogram * histogram)
  {
    if (m_InputHistogram != histogram)
    {
      m_InputHistogram = histogram;
      this->Modified();
    }
  }
 
  const TInputHistogram *
  GetInputHistogram() const
  {
    return m_InputHistogram.GetPointer();
  }
 
#if !defined(ITK_LEGACY_REMOVE)
  void
  Update()
  {
    this->Compute();
  }
#endif
 
protected:
  HistogramAlgorithmBase();
  ~HistogramAlgorithmBase() override = default;
  void
  PrintSelf(std::ostream & os, Indent indent) const override;
 
  virtual void
  Compute() = 0;
 
private:
  typename TInputHistogram::ConstPointer m_InputHistogram;
}; // end of class
} // end of namespace itk
 
#ifndef ITK_MANUAL_INSTANTIATION
#  include "itkHistogramAlgorithmBase.hxx"
#endif
 
#endif