DepthRangeIndexed

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/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2016 Robert Osfield
 *
 * This library is open source and may be redistributed and/or modified under
 * the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
 * (at your option) any later version.  The full license is in LICENSE file
 * included with this distribution, and on the openscenegraph.org website.
 *
 * 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
 * OpenSceneGraph Public License for more details.
*/
 
#ifndef OSG_DepthRangeIndexed
#define OSG_DepthRangeIndexed 1
 
#include <osg/Depth>
 
namespace osg {

class OSG_EXPORT DepthRangeIndexed : public osg::StateAttribute
{
    public :
 
        DepthRangeIndexed();
 
        DepthRangeIndexed(unsigned int index, double zNear=0.0, double zFar=1.0):
            _index(index),
            _zNear(zNear),
            _zFar(zFar) {}

        DepthRangeIndexed(const DepthRangeIndexed& dp,const CopyOp& copyop=CopyOp::SHALLOW_COPY):
            StateAttribute(dp,copyop),
            _index(dp._index),
            _zNear(dp._zNear),
            _zFar(dp._zFar) {}
 
        META_StateAttribute(osg, DepthRangeIndexed, DEPTHRANGEINDEXED);

        virtual int compare(const StateAttribute& sa) const
        {
            // Check for equal types, then create the rhs variable
            // used by the COMPARE_StateAttribute_Parameter macros below.
            COMPARE_StateAttribute_Types(DepthRangeIndexed,sa)
 
            COMPARE_StateAttribute_Parameter(_index);
            COMPARE_StateAttribute_Parameter(_zNear)
            COMPARE_StateAttribute_Parameter(_zFar)
 
            return 0;
        }

        virtual unsigned int getMember() const { return _index; }

        void setIndex(unsigned int index);

        unsigned int getIndex() const { return _index; }
 
        inline void setZNear(double zNear) { _zNear=zNear; }
        inline double getZNear() const { return _zNear; }
 
        inline void setZFar(double zFar) { _zFar=zFar; }
        inline double getZFar() const { return _zFar; }
 
        virtual void apply(State& state) const;
 
    protected:
 
        virtual ~DepthRangeIndexed();
 
        unsigned int    _index;
        double          _zNear;
        double          _zFar;
 
};
 
}
 
#endif