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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 sitkPyCommand_h
#define sitkPyCommand_h
#include "sitkCommand.h"
#ifndef PyObject_HEAD
struct _object;
typedef _object PyObject;
#endif
namespace itk
{
namespace simple
{
/** \class PyCommand
* \brief Command subclass that calls a Python callable object, e.g.
* a Python function.
*
* With this class, arbitrary Python callable objects (e.g. functions)
* can be associated with an instance to be used in AddObserver calls.
*
* Based of the WrapITK itkPyCommand class originally contributed by
* Charl P. Botha <cpbotha |AT| ieee.org>.
*/
class PyCommand
: public itk::simple::Command
{
public:
typedef Command Super;
PyCommand();
~PyCommand();
/**
* Assign a Python callable object to be used. You don't have to keep
* a binding to the callable, PyCommand will also take out a reference
* to make sure the Callable sticks around.
*/
void SetCallbackPyCallable(PyObject *obj);
PyObject * GetCallbackPyCallable();
virtual void Execute(void);
#ifndef SWIG
// export for access in the custom ProcessObject method for callables
using Super::SetOwnedByProcessObjects;
using Super::GetOwnedByProcessObjects;
using Super::OwnedByProcessObjectsOn;
using Super::OwnedByProcessObjectsOff;
#endif
private:
PyObject *m_Object;
};
} // namespace simple
} // namespace itk
#endif // _sitkPyCommand_h
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