/**
 * PANDA 3D SOFTWARE
 * Copyright (c) Carnegie Mellon University.  All rights reserved.
 *
 * All use of this software is subject to the terms of the revised BSD
 * license.  You should have received a copy of this license along
 * with this source code in a file named "LICENSE."
 *
 * @file pythonCallbackObject.h
 * @author drose
 * @date 2009-03-13
 */

#ifndef PYTHONCALLBACKOBJECT_H
#define PYTHONCALLBACKOBJECT_H

#include "pandabase.h"

#ifdef HAVE_PYTHON

#include "py_panda.h"
#include "callbackObject.h"

/**
 * This is a specialization on CallbackObject to allow a callback to directly
 * call an arbitarary Python function.  Powerful!  But use with caution.
 */
class PythonCallbackObject : public CallbackObject {
PUBLISHED:
  PythonCallbackObject(PyObject *function = Py_None);
  virtual ~PythonCallbackObject();
  ALLOC_DELETED_CHAIN(PythonCallbackObject);

  void set_function(PyObject *function);
  PyObject *get_function();

  MAKE_PROPERTY(function, get_function, set_function);

public:
  virtual void do_callback(CallbackData *cbdata);

private:
  void do_python_callback(CallbackData *cbdata);

  PyObject *_function;

public:
  static TypeHandle get_class_type() {
    return _type_handle;
  }
  static void init_type() {
    CallbackObject::init_type();
    register_type(_type_handle, "PythonCallbackObject",
                  CallbackObject::get_class_type());
  }
  virtual TypeHandle get_type() const {
    return get_class_type();
  }
  virtual TypeHandle force_init_type() {init_type(); return get_class_type();}

private:
  static TypeHandle _type_handle;
};

#include "pythonCallbackObject.I"

#endif  // HAVE_PYTHON

#endif