ColorInterpolator.h

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//    Copyright 2004, SenseGraphics AB
//
//    This file is part of H3D API.
//
//    H3D API is free software; you can redistribute it and/or modify
//    it under the terms of the GNU General Public License as published by
//    the Free Software Foundation; either version 2 of the License, or
//    (at your option) any later version.
//
//    H3D API 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 General Public License for more details.
//
//    You should have received a copy of the GNU General Public License
//    along with H3D API; if not, write to the Free Software
//    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
//
//    A commercial license is also available. Please contact us at 
//    www.sensegraphics.com for more information.
//
//
//
#ifndef __COLORINTERPOLATOR_H__
#define __COLORINTERPOLATOR_H__


#include "X3DInterpolatorNode.h"
#include "SFColor.h"
#include "MFColor.h"

namespace H3D {

  class H3DAPI_API ColorInterpolator : public X3DInterpolatorNode {
  public:
    
    struct H3DAPI_API SFValue : TypedField< SFColor, 
                                            Types< SFFloat, 
                                                   MFFloat, 
                                                   MFColor > >{
      Vec3f RGBToHSV( const RGB &rgb );

      RGB HSVToRGB( const Vec3f &rgb );
      
      virtual void update();
    };

    ColorInterpolator( Inst< SFNode  > _metadata      = 0,
                       Inst< SFFloat > _set_fraction  = 0,
                       Inst< MFFloat > _key           = 0,
                       Inst< MFColor > _keyValue      = 0,
                       Inst< SFValue > _value_changed = 0 );

    auto_ptr< MFColor >  keyValue;

    auto_ptr< SFValue > value_changed;    

    static H3DNodeDatabase database;
  };
}

#endif

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