---

SoSpotLightDragger.h

/**************************************************************************\
 *
 *  This file is part of the Coin 3D visualization library.
 *  Copyright (C) 1998-2002 by Systems in Motion. 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
 *  version 2.1 as published by the Free Software Foundation. See the
 *  file LICENSE.LGPL at the root directory of the distribution for
 *  more details.
 *
 *  If you want to use Coin for applications not compatible with the
 *  LGPL, please contact SIM to acquire a Professional Edition license.
 *
 *  Systems in Motion, Prof Brochs gate 6, 7030 Trondheim, NORWAY
 *  http://www.sim.no support@sim.no Voice: +47 22114160 Fax: +47 22207097
 *
\**************************************************************************/

#ifndef COIN_SOSPOTLIGHTDRAGGER_H
#define COIN_SOSPOTLIGHTDRAGGER_H

#include <Inventor/draggers/SoDragger.h>
#include <Inventor/fields/SoSFRotation.h>
#include <Inventor/fields/SoSFVec3f.h>
#include <Inventor/fields/SoSFFloat.h>

class SoSensor;
class SoFieldSensor;
class SbPlaneProjector;


class COIN_DLL_API SoSpotLightDragger : public SoDragger {
  typedef SoDragger inherited;

  SO_KIT_HEADER(SoSpotLightDragger);

  SO_KIT_CATALOG_ENTRY_HEADER(beam);
  SO_KIT_CATALOG_ENTRY_HEADER(beamActive);
  SO_KIT_CATALOG_ENTRY_HEADER(beamPlacement);
  SO_KIT_CATALOG_ENTRY_HEADER(beamScale);
  SO_KIT_CATALOG_ENTRY_HEADER(beamSep);
  SO_KIT_CATALOG_ENTRY_HEADER(beamSwitch);
  SO_KIT_CATALOG_ENTRY_HEADER(material);
  SO_KIT_CATALOG_ENTRY_HEADER(rotator);
  SO_KIT_CATALOG_ENTRY_HEADER(translator);
  SO_KIT_CATALOG_ENTRY_HEADER(translatorRotInv);
  SO_KIT_CATALOG_ENTRY_HEADER(translatorSep);


public:
  static void initClass(void);
  SoSpotLightDragger(void);

  SoSFRotation rotation;
  SoSFVec3f translation;
  SoSFFloat angle;

protected:
  ~SoSpotLightDragger();
  virtual SbBool setUpConnections(SbBool onoff, SbBool doitalways = FALSE);
  virtual void setDefaultOnNonWritingFields(void);

  static void startCB(void * f, SoDragger * d);
  static void motionCB(void * f, SoDragger * d);
  static void doneCB(void * f, SoDragger * d);
  static void fieldSensorCB(void * f, SoSensor * s);
  static void valueChangedCB(void * f, SoDragger * d);

  void dragStart(void);
  void drag(void);
  void dragFinish(void);

  void setBeamScaleFromAngle(float beamangle);

  SoFieldSensor * rotFieldSensor;
  SoFieldSensor * translFieldSensor;
  SoFieldSensor * angleFieldSensor;
  SbPlaneProjector * planeProj;
};

#endif // !COIN_SOSPOTLIGHTDRAGGER_H

---