MeVis/ThirdParty/Sources/Inventor/inventor/lib/interaction/include/Inventor/draggers/SoSpotLightDragger.h

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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/
 *
 */


 
#ifndef  _SO_SPOT_LIGHT_DRAGGER_
#define  _SO_SPOT_LIGHT_DRAGGER_

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

class SoFieldSensor;
class SbPlaneProjector;




class INVENTOR_API SoSpotLightDragger : public SoDragger
{
    SO_KIT_HEADER(SoSpotLightDragger);

    SO_KIT_CATALOG_ENTRY_HEADER(material);

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

  public:

    SoSpotLightDragger();

    SoSFRotation rotation;
    SoSFVec3f    translation;
    SoSFFloat    angle;

  SoINTERNAL public:
    static void initClass(); 

  protected:

    SbPlaneProjector    *planeProj;  

    static void startCB( void *, SoDragger * );
    static void motionCB( void *, SoDragger * );
    static void doneCB( void *, SoDragger * );

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

    SoFieldSensor *rotFieldSensor;
    SoFieldSensor *translFieldSensor;
    SoFieldSensor *angleFieldSensor;
    static void   fieldSensorCB( void *, SoSensor * );
    static void   valueChangedCB( void *, SoDragger * );

    void setBeamScaleFromAngle(float beamAngle);

    virtual SbBool setUpConnections( SbBool onOff, SbBool doItAlways = FALSE );

    virtual void setDefaultOnNonWritingFields();

    virtual ~SoSpotLightDragger();

  private:
    static const char geomBuffer[];
};    

#endif  /* _SO_SPOT_LIGHT_DRAGGER_ */