Open Inventor Reference
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00001 /* 00002 * 00003 * Copyright (C) 2000 Silicon Graphics, Inc. All Rights Reserved. 00004 * 00005 * This library is free software; you can redistribute it and/or 00006 * modify it under the terms of the GNU Lesser General Public 00007 * License as published by the Free Software Foundation; either 00008 * version 2.1 of the License, or (at your option) any later version. 00009 * 00010 * This library is distributed in the hope that it will be useful, 00011 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00012 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00013 * Lesser General Public License for more details. 00014 * 00015 * Further, this software is distributed without any warranty that it is 00016 * free of the rightful claim of any third person regarding infringement 00017 * or the like. Any license provided herein, whether implied or 00018 * otherwise, applies only to this software file. Patent licenses, if 00019 * any, provided herein do not apply to combinations of this program with 00020 * other software, or any other product whatsoever. 00021 * 00022 * You should have received a copy of the GNU Lesser General Public 00023 * License along with this library; if not, write to the Free Software 00024 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 00025 * 00026 * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy, 00027 * Mountain View, CA 94043, or: 00028 * 00029 * http://www.sgi.com 00030 * 00031 * For further information regarding this notice, see: 00032 * 00033 * http://oss.sgi.com/projects/GenInfo/NoticeExplan/ 00034 * 00035 */ 00036 00037 00038 /* 00039 * Copyright (C) 1990,91,92 Silicon Graphics, Inc. 00040 * 00041 _______________________________________________________________________ 00042 ______________ S I L I C O N G R A P H I C S I N C . ____________ 00043 | 00044 | $Revision: 1.1.1.1 $ 00045 | 00046 | Description: 00047 | This file contains the declaration of the OneShot engine 00048 | 00049 | Classes: 00050 | SoOneShot 00051 | 00052 | Author(s) : Ronen Barzel 00053 | 00054 ______________ S I L I C O N G R A P H I C S I N C . ____________ 00055 _______________________________________________________________________ 00056 */ 00057 00058 #ifndef _SO_ONE_SHOT_ 00059 #define _SO_ONE_SHOT_ 00060 00061 #include <Inventor/system/SbSystem.h> 00062 #include <Inventor/engines/SoSubEngine.h> 00063 #include <Inventor/fields/SoSFBool.h> 00064 #include <Inventor/fields/SoSFTrigger.h> 00065 #include <Inventor/fields/SoSFTime.h> 00066 #include <Inventor/fields/SoSFBitMask.h> 00067 00070 00112 00113 00114 class INVENTOR_API SoOneShot : public SoEngine { 00115 00116 SO_ENGINE_HEADER(SoOneShot); 00117 00118 public: 00119 enum Flags { 00120 RETRIGGERABLE = (1<<0), 00121 HOLD_FINAL = (1<<1) 00122 }; 00123 00125 00126 00128 SoSFTime duration; 00129 00133 SoSFTrigger trigger; 00134 00136 SoSFBitMask flags; 00137 00139 SoSFBool disable; 00140 00142 SoSFTime timeIn; 00143 00145 00147 00148 00150 SoEngineOutput timeOut; 00151 00153 SoEngineOutput isActive; 00154 00156 SoEngineOutput ramp; 00157 00159 00161 SoOneShot(); 00162 00163 SoINTERNAL public: 00164 00165 static void initClass(); 00166 00167 protected: 00168 virtual void inputChanged(SoField *whichInput); 00169 00172 virtual void writeInstance(SoOutput *out); 00173 00177 virtual SbBool readInstance(SoInput *in, unsigned short flags); 00178 00179 private: 00180 enum State { 00181 DISABLED, 00182 OFF, 00183 TRIGGERED, 00184 ON, 00185 PEAKED 00186 } state; 00187 SbTime baseTime; 00188 SbTime timeVal; 00189 double rampVal; 00190 SbBool outputPending; 00191 00193 ~SoOneShot(); 00194 00196 virtual void evaluate(); 00197 }; 00198 00199 #endif /* _SO_ONE_SHOT_ */