Panda3D
Loading...
Searching...
No Matches
callbackData.h
Go to the documentation of this file.
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 callbackData.h
10 * @author drose
11 * @date 2009-03-13
12 */
13
14#ifndef CALLBACKDATA_H
15#define CALLBACKDATA_H
16
17#include "pandabase.h"
18#include "typedObject.h"
19
20/**
21 * This is a generic data block that is passed along to a CallbackObject when
22 * a callback is made. It contains data specific to the particular callback
23 * type in question.
24 *
25 * This is actually an abstract base class and contains no data.
26 * Specializations of this class will contain the actual data relevant to each
27 * callback type.
28 */
29class EXPCL_PANDA_PUTIL CallbackData : public TypedObject {
30protected:
31 INLINE CallbackData();
32
33PUBLISHED:
34 virtual void output(std::ostream &out) const;
35
36 virtual void upcall();
37
38public:
39 static TypeHandle get_class_type() {
40 return _type_handle;
41 }
42 static void init_type() {
44 register_type(_type_handle, "CallbackData",
45 TypedObject::get_class_type());
46 }
47 virtual TypeHandle get_type() const {
48 return get_class_type();
49 }
50 virtual TypeHandle force_init_type() {init_type(); return get_class_type();}
51
52private:
53 static TypeHandle _type_handle;
54};
55
56inline std::ostream &operator << (std::ostream &out, const CallbackData &cbd) {
57 cbd.output(out);
58 return out;
59}
60
61#include "callbackData.I"
62
63#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.
TypeHandle is the identifier used to differentiate C++ class types.
Definition typeHandle.h:81
This is an abstract class that all classes which use TypeHandle, and also provide virtual functions t...
Definition typedObject.h:88
static void init_type()
This function is declared non-inline to work around a compiler bug in g++ 2.96.
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(),...
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.