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/*
*
* Copyright (C) 2000 Silicon Graphics, Inc. All Rights Reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* Further, this software is distributed without any warranty that it is
* free of the rightful claim of any third person regarding infringement
* or the like. Any license provided herein, whether implied or
* otherwise, applies only to this software file. Patent licenses, if
* any, provided herein do not apply to combinations of this program with
* other software, or any other product whatsoever.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
* Mountain View, CA 94043, or:
*
* http://www.sgi.com
*
* For further information regarding this notice, see:
*
* http://oss.sgi.com/projects/GenInfo/NoticeExplan/
*
*/
// -*- C++ -*-
/*
* Copyright (C) 1990,91 Silicon Graphics, Inc.
*
_______________________________________________________________________
______________ S I L I C O N G R A P H I C S I N C . ____________
|
| $Revision: 1.1.1.1 $
|
| Description:
| This file defines the SoBlinker node class.
|
| Author(s) : Ronen Barzel
|
______________ S I L I C O N G R A P H I C S I N C . ____________
_______________________________________________________________________
*/
#ifndef _SO_BLINKER_
#define _SO_BLINKER_
#include <Inventor/nodes/SoSwitch.h>
#include <Inventor/fields/SoSFFloat.h>
#include <Inventor/fields/SoSFBool.h>
//////////////////////////////////////////////////////////////////////////////
//
// Class: SoBlinker
//
// SoSwitch node cycles between all its children.
// with only one child, cycles that child on and off.
//
//////////////////////////////////////////////////////////////////////////////
// C-api: public=whichChild,speed,on
class SoBlinker : public SoSwitch {
SO_NODE_HEADER(SoBlinker);
public:
// Fields
SoSFFloat speed; // cycles per second
SoSFBool on; // FALSE to stop blinking
// Constructor
SoBlinker();
SoEXTENDER public:
// Bounding box computation takes all children into account
virtual void getBoundingBox(SoGetBoundingBoxAction *action);
// overload write method not to write internal engines
virtual void write(SoWriteAction *action);
SoINTERNAL public:
static void initClass();
protected:
virtual ~SoBlinker();
virtual void notify(SoNotList *);
private:
SbBool wasOn; // Remembers previous state of "on" field
// keep track of internal connection
class SoEngineOutput *internalConnection;
class SoTimeCounter *count;
void setupCounter();
int nchildren;
class SoOneShotSensor *childrenSensor;
class SoOneShotSensor *whichChildSensor;
class SoFieldSensor *onSensor;
static void childrenSensorCB(void *data, class SoSensor *sensor);
static void whichChildSensorCB(void *data, class SoSensor *sensor);
static void onSensorCB(void *data, class SoSensor *sensor);
};
#endif /* _SO_BLINKER_ */
|
