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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 itkPyCommand_h
#define itkPyCommand_h
#include "itkCommand.h"
// The python header defines _POSIX_C_SOURCE without a preceding #undef
#undef _POSIX_C_SOURCE
#undef _XOPEN_SOURCE
// For Python 2.7 hypot bug, see https://bugs.python.org/issue11566
#include "PatchedPython27pyconfig.h"
#include <Python.h>
namespace itk
{
/** \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.
* This is analogous to itk::TclCommand, but then a tad more flexible. ;)
*
* This class was contributed by Charl P. Botha <cpbotha |AT| ieee.org>
*/
class PyCommand : public Command
{
public:
///! Standard "Self" typedef.
typedef PyCommand Self;
///! Smart pointer typedef support.
typedef SmartPointer<Self> Pointer;
///! Run-time type information (and related methods).
itkTypeMacro(PyCommand,Command);
///! Method for creation through the object factory.
itkNewMacro(Self);
/**
* 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 SetCommandCallable(PyObject *obj);
PyObject * GetCommandCallable();
void Execute(Object *, const EventObject&);
void Execute(const Object *, const EventObject&);
protected:
PyCommand();
~PyCommand();
void PyExecute();
PyCommand(const Self&); // Not implemented.
PyCommand & operator=(const Self&); // Not implemented.
private:
PyObject *m_Object;
};
} // namespace itk
#endif // _itkPyCommand_h
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