1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
|
/*
*
* Copyright (C) 2000 Silicon Graphics, Inc. All Rights Reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* Further, this software is distributed without any warranty that it is
* free of the rightful claim of any third person regarding infringement
* or the like. Any license provided herein, whether implied or
* otherwise, applies only to this software file. Patent licenses, if
* any, provided herein do not apply to combinations of this program with
* other software, or any other product whatsoever.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
* Mountain View, CA 94043, or:
*
* http://www.sgi.com
*
* For further information regarding this notice, see:
*
* http://oss.sgi.com/projects/GenInfo/NoticeExplan/
*
*/
// -*- C++ -*-
/*
* Copyright (C) 1990,91 Silicon Graphics, Inc.
*
_______________________________________________________________________
______________ S I L I C O N G R A P H I C S I N C . ____________
|
| $Revision: 1.1.1.1 $
|
| Description:
| This file defines the SoCallback node class.
|
| Author(s) : Paul S. Strauss, Nick Thompson, Gavin Bell
|
______________ S I L I C O N G R A P H I C S I N C . ____________
_______________________________________________________________________
*/
#ifndef _SO_CALLBACK_
#define _SO_CALLBACK_
#include <Inventor/SbLinear.h>
#include <Inventor/nodes/SoSubNode.h>
//////////////////////////////////////////////////////////////////////////////
//
// Class: SoCallback
//
// The SoCallback node is a general mechanism that allows
// applications to insert callback functions into a scene graph. The
// callback function registered with the node is called each time
// that node is traversed to perform any scene graph action. When the
// callback function is called, it is passed a pointer to the action
// being traversed and a user-data pointer that is registered with
// the callback function. A NULL callback function pointer means that
// no function will be called.
//
//////////////////////////////////////////////////////////////////////////////
// Callback functions registered with this node should be of this type.
typedef void SoCallbackCB(void *userData, SoAction *action);
// C-api: prefix=SoCB
class SoCallback : public SoNode {
SO_NODE_HEADER(SoCallback);
public:
// Constructor
SoCallback();
// Sets pointer to callback function and user data
// C-api: name=setCB
void setCallback(SoCallbackCB *func, void *userData = NULL)
{ callbackFunc = func; callbackData = userData; }
SoEXTENDER public:
// Traversal methods for all the actions:
virtual void doAction(SoAction *action);
virtual void callback(SoCallbackAction *action);
virtual void GLRender(SoGLRenderAction *action);
virtual void getBoundingBox(SoGetBoundingBoxAction *action);
virtual void getMatrix(SoGetMatrixAction *action);
virtual void handleEvent(SoHandleEventAction *action);
virtual void pick(SoPickAction *action);
virtual void search(SoSearchAction *action);
virtual void write(SoWriteAction *action);
SoINTERNAL public:
static void initClass();
protected:
virtual ~SoCallback();
// Copies the contents of the given node into this instance
virtual void copyContents(const SoFieldContainer *fromFC,
SbBool copyConnections);
private:
SoCallbackCB *callbackFunc; // Function to call
void *callbackData; // User data to pass it
};
#endif /* _SO_CALLBACK_ */
|
