itkCreateObjectFunction.h

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/*=========================================================================
 *
 *  Copyright Insight Software Consortium
 *
 *  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 itkCreateObjectFunction_h
#define itkCreateObjectFunction_h

#include "itkObject.h"

namespace itk
{
class ITKCommon_EXPORT CreateObjectFunctionBase:public Object
{
public:
  ITK_DISALLOW_COPY_AND_ASSIGN(CreateObjectFunctionBase);

  using Self = CreateObjectFunctionBase;
  using Superclass = Object;
  using Pointer = SmartPointer< Self >;
  using ConstPointer = SmartPointer< const Self >;

  virtual SmartPointer< LightObject > CreateObject() = 0;

protected:
  CreateObjectFunctionBase();
  ~CreateObjectFunctionBase() override;
};

template< typename T >
class CreateObjectFunction:public CreateObjectFunctionBase
{
public:
  ITK_DISALLOW_COPY_AND_ASSIGN(CreateObjectFunction);

  using Self = CreateObjectFunction;
  using Pointer = SmartPointer< Self >;

  itkFactorylessNewMacro(Self);
  LightObject::Pointer CreateObject() override { return T::New().GetPointer(); }

protected:
  CreateObjectFunction() = default;
  ~CreateObjectFunction() override = default;
};
} // end namespace itk

#endif