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SoSensor.h

00001 /**************************************************************************\
00002  *
00003  *  This file is part of the Coin 3D visualization library.
00004  *  Copyright (C) 1998-2002 by Systems in Motion. All rights reserved.
00005  *
00006  *  This library is free software; you can redistribute it and/or
00007  *  modify it under the terms of the GNU Lesser General Public License
00008  *  version 2.1 as published by the Free Software Foundation. See the
00009  *  file LICENSE.LGPL at the root directory of the distribution for
00010  *  more details.
00011  *
00012  *  If you want to use Coin for applications not compatible with the
00013  *  LGPL, please contact SIM to acquire a Professional Edition license.
00014  *
00015  *  Systems in Motion, Prof Brochs gate 6, 7030 Trondheim, NORWAY
00016  *  http://www.sim.no support@sim.no Voice: +47 22114160 Fax: +47 22207097
00017  *
00018 \**************************************************************************/
00019 
00020 #ifndef COIN_SOSENSOR_H
00021 #define COIN_SOSENSOR_H
00022 
00023 #include <Inventor/SbBasic.h>
00024 
00025 class SoSensor;
00026 
00027 typedef void SoSensorCB(void * data, SoSensor * sensor);
00028 
00029 class COIN_DLL_API SoSensor {
00030 public:
00031   SoSensor(void);
00032   SoSensor(SoSensorCB * func, void * data);
00033   virtual ~SoSensor(void);
00034 
00035   void setFunction(SoSensorCB * callbackfunction);
00036   SoSensorCB * getFunction(void) const;
00037   void setData(void * callbackdata);
00038   void * getData(void) const;
00039 
00040   virtual void schedule(void) = 0;
00041   virtual void unschedule(void) = 0;
00042   virtual SbBool isScheduled(void) const = 0;
00043 
00044   virtual void trigger(void);
00045 
00046   virtual SbBool isBefore(const SoSensor * s) const = 0;
00047   void setNextInQueue(SoSensor * next);
00048   SoSensor * getNextInQueue(void) const;
00049 
00050   static void initClass(void);
00051 
00052 protected:
00053   SoSensorCB * func;
00054   void * funcData;
00055 };
00056 
00057 #endif // !COIN_SOSENSOR_H

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