DtLightPointNodeAndXform.h

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/******************************************************************************
** Copyright (c) 2020 VT-MAK Technologies, Inc.
** All rights reserved.
******************************************************************************/

#pragma once

#include <vrvOsg/vrvOsg.h>
#include <vrvOsg/DtLightPointNode.h>

#include <osg/Node>
#include <osg/observer_ptr>

#include <vector>

namespace makVrv
{
   typedef osg::observer_ptr<osg::Node> LightPointNodeObs;

   class DtLightPointNodeAndXform
   {
   public:
      DtLightPointNodeAndXform(const DtLightPointNodeAndXform& other);

      virtual ~DtLightPointNodeAndXform();

      DtLightPointNodeAndXform(LightPointNodeObs lightPointObs,
                               const osg::Matrix& lightPointXform = osg::Matrix(),
                               const DtNodePointerStack& dofStack = DtNodePointerStack(),
                               const DtNodePointerStack& lodStack = DtNodePointerStack(),
                               const DtNodePointerStack& switchStack = DtNodePointerStack());

   private:
      DtLightPointNodeAndXform() = delete;

      DtLightPointNodeAndXform& operator=(const DtLightPointNodeAndXform& other) = delete;

      bool operator==(const DtLightPointNodeAndXform& other) = delete;

   public:
      // Compare dof/lod/switch stacks to find aggregation division points
      int cmpStacks(const DtLightPointNodeAndXform& other) const;

   public:
      LightPointNodeObs  myLightPointObs;    // light point node observer
      osg::Matrix        myLightPointXform;  // transform attached to this node
      DtNodePointerStack myDofStack;         // Dof stack accumulation leading to this node
      DtNodePointerStack myLodStack;         // Lod stack accumulation leading to this node
      DtNodePointerStack mySwitchStack;      // Switch stack accumulation leading to this node
   };

   typedef std::vector<DtLightPointNodeAndXform> DtLightPointNodeAndXformVector;

} // namespace makVrv