Open Inventor Release 2024.1.2
 
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SoSFNode.h
1/*=======================================================================
2 * Copyright 1991-1996, Silicon Graphics, Inc.
3 * ALL RIGHTS RESERVED
4 *
5 * UNPUBLISHED -- Rights reserved under the copyright laws of the United
6 * States. Use of a copyright notice is precautionary only and does not
7 * imply publication or disclosure.
8 *
9 * U.S. GOVERNMENT RESTRICTED RIGHTS LEGEND:
10 * Use, duplication or disclosure by the Government is subject to restrictions
11 * as set forth in FAR 52.227.19(c)(2) or subparagraph (c)(1)(ii) of the Rights
12 * in Technical Data and Computer Software clause at DFARS 252.227-7013 and/or
13 * in similar or successor clauses in the FAR, or the DOD or NASA FAR
14 * Supplement. Contractor/manufacturer is Silicon Graphics, Inc.,
15 * 2011 N. Shoreline Blvd. Mountain View, CA 94039-7311.
16 *
17 * THE CONTENT OF THIS WORK CONTAINS CONFIDENTIAL AND PROPRIETARY
18 * INFORMATION OF SILICON GRAPHICS, INC. ANY DUPLICATION, MODIFICATION,
19 * DISTRIBUTION, OR DISCLOSURE IN ANY FORM, IN WHOLE, OR IN PART, IS STRICTLY
20 * PROHIBITED WITHOUT THE PRIOR EXPRESS WRITTEN PERMISSION OF SILICON
21 * GRAPHICS, INC.
22**=======================================================================*/
23/*=======================================================================
24** Author : Paul S. Strauss (MMM yyyy)
25**=======================================================================*/
26/*=======================================================================
27 *** THE CONTENT OF THIS WORK IS PROPRIETARY TO FEI S.A.S, (FEI S.A.S.), ***
28 *** AND IS DISTRIBUTED UNDER A LICENSE AGREEMENT. ***
29 *** ***
30 *** REPRODUCTION, DISCLOSURE, OR USE, IN WHOLE OR IN PART, OTHER THAN AS ***
31 *** SPECIFIED IN THE LICENSE ARE NOT TO BE UNDERTAKEN EXCEPT WITH PRIOR ***
32 *** WRITTEN AUTHORIZATION OF FEI S.A.S. ***
33 *** ***
34 *** RESTRICTED RIGHTS LEGEND ***
35 *** USE, DUPLICATION, OR DISCLOSURE BY THE GOVERNMENT OF THE CONTENT OF THIS ***
36 *** WORK OR RELATED DOCUMENTATION IS SUBJECT TO RESTRICTIONS AS SET FORTH IN ***
37 *** SUBPARAGRAPH (C)(1) OF THE COMMERCIAL COMPUTER SOFTWARE RESTRICTED RIGHT ***
38 *** CLAUSE AT FAR 52.227-19 OR SUBPARAGRAPH (C)(1)(II) OF THE RIGHTS IN ***
39 *** TECHNICAL DATA AND COMPUTER SOFTWARE CLAUSE AT DFARS 52.227-7013. ***
40 *** ***
41 *** COPYRIGHT (C) 1996-2023 BY FEI S.A.S, ***
42 *** BORDEAUX, FRANCE ***
43 *** ALL RIGHTS RESERVED ***
44**=======================================================================*/
45/*=======================================================================
46** Modified by : VSG (MMM YYYY)
47**=======================================================================*/
48
49
50#ifndef _SO_SF_NODE_
51#define _SO_SF_NODE_
52
53class SoNode;
54
55#include <Inventor/fields/SoSubField.h>
56
58//
59// SoSFNode subclass of SoSField. The field value is a pointer to an
60// SoNode. The field automatically maintains a reference to the node
61// it points to and propagates notification from the node.
62//
64
97class SoSFNode : public SoSField {
98
99 // Use standard field stuff
100 SO_SFIELD_HEADER(SoSFNode, SoNode *, SoNode *);
101
102 public:
112 SoNode *getValue(SbBool getEffectiveNode = FALSE);
113
114 private:
115 static void initClass();
116 static void exitClass();
117
118 // Update a copied field to use the copy of the node if there is one
119 virtual void fixCopy(SbBool copyConnections);
120
121 // Override this to also check the stored node
122 virtual SbBool referencesCopy() const;
123
124 private:
125 // Override this to maintain write-references in node
126 virtual void countWriteRefs(SoOutput *out) const;
127
128 // Changes value in field without doing other notification stuff.
129 // Keeps track of references and auditors.
130 void setVal(SoNode *newValue);
131
132};
133
134#endif /* _SO_SF_NODE_ */
135
Abstract base class for all database nodes.
Definition SoNode.h:145
Used to write Open Inventor data files.
Definition SoOutput.h:186
Field containing a a node.
Definition SoSFNode.h:97
SoNode * getValue(SbBool getEffectiveNode=FALSE)
Gets the value of this field.
Abstract base class for all single-value fields.
Definition SoSField.h:93
int SbBool
Boolean type.
Definition SbBase.h:87