DtLightManagerStateAttribute.h

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/******************************************************************************
** Copyright (c) 2012 MAK Technologies, Inc.
** All rights reserved.
******************************************************************************/


#ifndef DtLightManagerStateAttribute_H_
#define DtLightManagerStateAttribute_H_

#include <vrvCore/DtDe.h>
#include <vrvOsg/vrvOsg.h>
#include <vrvOsg/DtOsgLightManager.h>

#include <osg/StateAttribute>

namespace makVrv
{
   class DtLightManagerStateAttribute : public osg::StateAttribute
   {
   public:

      DtLightManagerStateAttribute(DtDe& de, bool enabled);     

      DtLightManagerStateAttribute(const DtLightManagerStateAttribute& att, 
         const osg::CopyOp& copyop = osg::CopyOp::SHALLOW_COPY)
         : osg::StateAttribute(att, copyop)
         , myDe(att.myDe)
         , myEnabled(att.myEnabled)
     {
     }

      virtual ~DtLightManagerStateAttribute();

      virtual void apply(osg::State& state) const;

      // OSG-required overrides:
      virtual osg::Object* cloneType() const 
      { 
         return new DtLightManagerStateAttribute(myDe, false); 
      }

      virtual osg::Object* clone(const osg::CopyOp& copyop) const 
      {
         return new DtLightManagerStateAttribute(*this,copyop);
      }

      virtual bool isSameKindAs(const osg::Object* obj) const {
         return dynamic_cast<const DtLightManagerStateAttribute *>(obj) != 0; 
      }
      
      virtual const char *libraryName() const 
      { 
         return "vrvOsg"; 
      }
      
      virtual const char *className() const 
      { 
         return "DtLightManagerStateAttribute"; 
      }
      
      virtual Type getType() const 
      {
         return (osg::StateAttribute::Type)1000; 
      }

      virtual bool getModeUsage(osg::StateAttribute::ModeUsage& usage) const
      {
         for (int lightNum = 1; lightNum < 8; lightNum++)
         {
            usage.usesMode(GL_LIGHT0 + lightNum);
         }
         return true;
      }

      virtual int compare(const StateAttribute& sa) const
      {
         COMPARE_StateAttribute_Types(DtLightManagerStateAttribute, sa)
         rhs;

         return 0;
      }

   protected:
      DtDe& myDe;
     bool myEnabled;
   };

}

#endif