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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 CreateObjectFunctionBase
* \brief Define API for object creation callback functions.
*
* \ingroup ITKSystemObjects
* \ingroup ITKCommon
*/
class ITKCommon_EXPORT CreateObjectFunctionBase:public Object
{
public:
/** Standard typedefs. */
typedef CreateObjectFunctionBase Self;
typedef Object Superclass;
typedef SmartPointer< Self > Pointer;
typedef SmartPointer< const Self > ConstPointer;
/** Create an object and return a pointer to it as an
* itk::LightObject. */
virtual SmartPointer< LightObject > CreateObject() = 0;
protected:
CreateObjectFunctionBase();
~CreateObjectFunctionBase();
private:
ITK_DISALLOW_COPY_AND_ASSIGN(CreateObjectFunctionBase);
};
/** \class CreateObjectFunction
* \brief Used to create callback functions that create ITK Objects for
* use with the itk::ObjectFactory.
*
* \ingroup ITKSystemObjects
* \ingroup ITKCommon
*/
template< typename T >
class CreateObjectFunction:public CreateObjectFunctionBase
{
public:
/** Standard class typedefs. */
typedef CreateObjectFunction Self;
typedef SmartPointer< Self > Pointer;
/** Methods from itk:LightObject. */
itkFactorylessNewMacro(Self);
virtual LightObject::Pointer CreateObject() ITK_OVERRIDE { return T::New().GetPointer(); }
protected:
CreateObjectFunction() {}
~CreateObjectFunction() ITK_OVERRIDE {}
private:
ITK_DISALLOW_COPY_AND_ASSIGN(CreateObjectFunction);
};
} // end namespace itk
#endif
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