Panda3D
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pythonCallbackObject.h
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1/**
2 * PANDA 3D SOFTWARE
3 * Copyright (c) Carnegie Mellon University. All rights reserved.
4 *
5 * All use of this software is subject to the terms of the revised BSD
6 * license. You should have received a copy of this license along
7 * with this source code in a file named "LICENSE."
8 *
9 * @file pythonCallbackObject.h
10 * @author drose
11 * @date 2009-03-13
12 */
13
14#ifndef PYTHONCALLBACKOBJECT_H
15#define PYTHONCALLBACKOBJECT_H
16
17#include "pandabase.h"
18
19#ifdef HAVE_PYTHON
20
21#include "py_panda.h"
22#include "callbackObject.h"
23
24/**
25 * This is a specialization on CallbackObject to allow a callback to directly
26 * call an arbitrary Python function. Powerful! But use with caution.
27 */
28class PythonCallbackObject : public CallbackObject {
29PUBLISHED:
30 PythonCallbackObject(PyObject *function = Py_None);
31 virtual ~PythonCallbackObject();
32 ALLOC_DELETED_CHAIN(PythonCallbackObject);
33
34 void set_function(PyObject *function);
35 PyObject *get_function();
36
37 MAKE_PROPERTY(function, get_function, set_function);
38
39public:
40 virtual void do_callback(CallbackData *cbdata);
41
42private:
43 void do_python_callback(CallbackData *cbdata);
44
45 PyObject *_function;
46
47public:
48 static TypeHandle get_class_type() {
49 return _type_handle;
50 }
51 static void init_type() {
52 CallbackObject::init_type();
53 register_type(_type_handle, "PythonCallbackObject",
54 CallbackObject::get_class_type());
55 }
56 virtual TypeHandle get_type() const {
57 return get_class_type();
58 }
59 virtual TypeHandle force_init_type() {init_type(); return get_class_type();}
60
61private:
62 static TypeHandle _type_handle;
63};
64
66
67#endif // HAVE_PYTHON
68
69#endif
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
This is a generic data block that is passed along to a CallbackObject when a callback is made.
This is a generic object that can be assigned to a callback at various points in the rendering proces...
virtual void do_callback(CallbackData *cbdata)
This method called when the callback is triggered; it *replaces* the original function.
TypeHandle is the identifier used to differentiate C++ class types.
Definition typeHandle.h:81
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
void register_type(TypeHandle &type_handle, const std::string &name)
This inline function is just a convenient way to call TypeRegistry::register_type(),...