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SoSelectOne.h
1 /**************************************************************************\
2 *
3 * This file is part of the Coin 3D visualization library.
4 * Copyright (C) by Kongsberg Oil & Gas Technologies.
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * ("GPL") version 2 as published by the Free Software Foundation.
9 * See the file LICENSE.GPL at the root directory of this source
10 * distribution for additional information about the GNU GPL.
11 *
12 * For using Coin with software that can not be combined with the GNU
13 * GPL, and for taking advantage of the additional benefits of our
14 * support services, please contact Kongsberg Oil & Gas Technologies
15 * about acquiring a Coin Professional Edition License.
16 *
17 * See http://www.coin3d.org/ for more information.
18 *
19 * Kongsberg Oil & Gas Technologies, Bygdoy Alle 5, 0257 Oslo, NORWAY.
20 * http://www.sim.no/ sales@sim.no coin-support@coin3d.org
21 *
22 \**************************************************************************/
23
24 #ifndef COIN_SOSELECTONE_H
25 #define COIN_SOSELECTONE_H
26
27 #include <Inventor/engines/SoSubEngine.h>
28 #include <Inventor/fields/SoMField.h>
29 #include <Inventor/fields/SoSFInt32.h>
30
31 class SoEngineOutput;
32
33
34 class COIN_DLL_API SoSelectOne : public SoEngine {
35 typedef SoEngine inherited;
36
37 SO_ENGINE_HEADER(SoSelectOne);
38
39 public:
40 SoSFInt32 index;
41 SoMField * input;
42
43 SoEngineOutput * output; // The SoSField-version of the SoMField-type.
44
45 SoSelectOne(SoType inputtype);
46 static void initClass(void);
47
48 private:
49 SoSelectOne(void);
50 virtual ~SoSelectOne(void);
51
52 virtual void evaluate(void);
53
54 virtual SbBool readInstance(SoInput * in, unsigned short flags);
55 virtual void writeInstance(SoOutput * out);
56
57 void initialize(const SoType inputfieldtype);
58
59 virtual void copyContents(const SoFieldContainer * from,
60 SbBool copyconnections);
61
62 // SoSelectOne instances uses a dynamic set of inputs and outputs,
63 // as they are not common for all instances of the class (like for
64 // most of the other engines).
65 SoFieldData * dynamicinput;
66 SoEngineOutputData * dynamicoutput;
67
68 // Avoid a g++/egcs warning on the private default constructor.
69 friend class dummy;
70 };
71
72 #endif // !COIN_SOSELECTONE_H

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