00001 /*======================================================================= 00002 * Copyright 1991-1996, Silicon Graphics, Inc. 00003 * ALL RIGHTS RESERVED 00004 * 00005 * UNPUBLISHED -- Rights reserved under the copyright laws of the United 00006 * States. Use of a copyright notice is precautionary only and does not 00007 * imply publication or disclosure. 00008 * 00009 * U.S. GOVERNMENT RESTRICTED RIGHTS LEGEND: 00010 * Use, duplication or disclosure by the Government is subject to restrictions 00011 * as set forth in FAR 52.227.19(c)(2) or subparagraph (c)(1)(ii) of the Rights 00012 * in Technical Data and Computer Software clause at DFARS 252.227-7013 and/or 00013 * in similar or successor clauses in the FAR, or the DOD or NASA FAR 00014 * Supplement. Contractor/manufacturer is Silicon Graphics, Inc., 00015 * 2011 N. Shoreline Blvd. Mountain View, CA 94039-7311. 00016 * 00017 * THE CONTENT OF THIS WORK CONTAINS CONFIDENTIAL AND PROPRIETARY 00018 * INFORMATION OF SILICON GRAPHICS, INC. ANY DUPLICATION, MODIFICATION, 00019 * DISTRIBUTION, OR DISCLOSURE IN ANY FORM, IN WHOLE, OR IN PART, IS STRICTLY 00020 * PROHIBITED WITHOUT THE PRIOR EXPRESS WRITTEN PERMISSION OF SILICON 00021 * GRAPHICS, INC. 00022 **=======================================================================*/ 00023 /*======================================================================= 00024 ** Author : Ronen Barzel (MMM yyyy) 00025 **=======================================================================*/ 00026 /*======================================================================= 00027 *** THE CONTENT OF THIS WORK IS PROPRIETARY TO FEI S.A.S, (FEI S.A.S.), *** 00028 *** AND IS DISTRIBUTED UNDER A LICENSE AGREEMENT. *** 00029 *** *** 00030 *** REPRODUCTION, DISCLOSURE, OR USE, IN WHOLE OR IN PART, OTHER THAN AS *** 00031 *** SPECIFIED IN THE LICENSE ARE NOT TO BE UNDERTAKEN EXCEPT WITH PRIOR *** 00032 *** WRITTEN AUTHORIZATION OF FEI S.A.S. *** 00033 *** *** 00034 *** RESTRICTED RIGHTS LEGEND *** 00035 *** USE, DUPLICATION, OR DISCLOSURE BY THE GOVERNMENT OF THE CONTENT OF THIS *** 00036 *** WORK OR RELATED DOCUMENTATION IS SUBJECT TO RESTRICTIONS AS SET FORTH IN *** 00037 *** SUBPARAGRAPH (C)(1) OF THE COMMERCIAL COMPUTER SOFTWARE RESTRICTED RIGHT *** 00038 *** CLAUSE AT FAR 52.227-19 OR SUBPARAGRAPH (C)(1)(II) OF THE RIGHTS IN *** 00039 *** TECHNICAL DATA AND COMPUTER SOFTWARE CLAUSE AT DFARS 52.227-7013. *** 00040 *** *** 00041 *** COPYRIGHT (C) 1996-2020 BY FEI S.A.S, *** 00042 *** BORDEAUX, FRANCE *** 00043 *** ALL RIGHTS RESERVED *** 00044 **=======================================================================*/ 00045 /*======================================================================= 00046 ** Modified by : VSG (MMM YYYY) 00047 **=======================================================================*/ 00048 00049 00050 #ifndef _SO_BLINKER_ 00051 #define _SO_BLINKER_ 00052 00053 #include <Inventor/nodes/SoSwitch.h> 00054 #include <Inventor/fields/SoSFFloat.h> 00055 #include <Inventor/fields/SoSFBool.h> 00056 #include <Inventor/sensors/SoOneShotSensor.h> 00057 #include <Inventor/engines/SoTimeCounter.h> 00058 #include <Inventor/sensors/SoFieldSensor.h> 00059 00060 00062 // 00063 // Class: SoBlinker 00064 // 00065 // SoSwitch node cycles between all its children. 00066 // with only one child, cycles that child on and off. 00067 // 00069 00100 class SoBlinker : public SoSwitch { 00101 00102 SO_NODE_HEADER(SoBlinker); 00103 00104 public: 00105 // Fields 00110 SoSFFloat speed; 00115 SoSFBool on; 00116 00120 SoBlinker(); 00121 00122 private: 00123 // Bounding box computation takes all children into account 00124 virtual void getBoundingBox(SoGetBoundingBoxAction *action); 00125 00126 // overload write method not to write internal engines 00127 virtual void write(SoWriteAction *action); 00128 00129 private: 00130 static void initClass(); 00131 static void exitClass(); 00132 00133 private: 00134 virtual ~SoBlinker(); 00135 00136 virtual void notify(SoNotList *); 00137 00138 private: 00139 SbBool wasOn; // Remembers previous state of "on" field 00140 00141 // keep track of internal connection 00142 class SoEngineOutput *internalConnection; 00143 00144 class SoTimeCounter *count; 00145 void setupCounter(); 00146 int nchildren; 00147 00148 class SoOneShotSensor *childrenSensor; 00149 class SoOneShotSensor *whichChildSensor; 00150 class SoFieldSensor *onSensor; 00151 00152 static void childrenSensorCB(void *data, class SoSensor *sensor); 00153 static void whichChildSensorCB(void *data, class SoSensor *sensor); 00154 static void onSensorCB(void *data, class SoSensor *sensor); 00155 }; 00156 00157 #endif /* _SO_BLINKER_ */ 00158 00159