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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 sitkFunctionCommand_h
#define sitkFunctionCommand_h
#include "sitkCommand.h"
#include "nsstd/functional.h"
namespace itk {
namespace simple {
/** \class FunctionCommand
* \brief A Command class which allows setting an external function,
* or member function.
*/
class SITKCommon_EXPORT FunctionCommand:
public Command
{
public:
typedef FunctionCommand Self;
FunctionCommand();
virtual void Execute(void);
/** Generic method to set a class's member function to be called in
* the Execute method.
*/
template <class T>
void SetCallbackFunction ( T *object, void(T::* pMemberFunction )() )
{
m_Function = nsstd::bind(pMemberFunction, object);
}
/** Set a C-Style function to be called in the Execute method */
void SetCallbackFunction ( void(* pFunction )() );
/** Set a C-Style function with a void* clientData as an
* argument. The caller is responsible for managing the life of
* the clientData and that it's valid when Execute is called with
* the clientData.
*/
void SetCallbackFunction( void(* pFunction )(void *), void *clientData );
private:
typedef nsstd::function<void()> FunctionObjectType;
FunctionObjectType m_Function;
};
} // end namespace simple
} // end namespace itk
#endif
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