DtDecalModelInstance.h

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


#pragma once

#include <vrvOsg/DtOsgModelInstance.h>

#include <osg/BoundingSphere>

namespace osg
{
   class Geode;
   class Group;
}

namespace makVrv
{

   class DtOsgRibbon;
   class DtSceneObject;

   class DT_DLL_VRVOSG DtDecalModelInstance : public DtOsgModelInstance
   {
      friend class DtDecalModelInstanceCreator;
   
   public:

      virtual ~DtDecalModelInstance();

   private:

      DtDecalModelInstance();

      DtDecalModelInstance(const DtDecalModelInstance&);

      DtDecalModelInstance &operator=(const DtDecalModelInstance&);

   public:

      virtual bool realize( DtModelDefinition& definition );

      virtual void addToConnector( DtOsgSceneConnector* connector );

      virtual bool removeFromConnector( DtOsgSceneConnector* connector );

      virtual void setParentSceneObject( const DtUniqueID& sceneObjID );

      virtual DtSceneObject* parentSceneObject();

      virtual void setOcclusionEnabled( bool enabled );

      virtual void setColor( const osg::Vec4& color );

      virtual void setVisible( bool isVisible ) {}

      virtual void update();

      virtual void setNewParticleVisible( bool enabled );

      virtual void setPositionOffset(const osg::Vec3& offset);

   protected:

      DtDecalModelInstance( DtDe& de );

      virtual DtOsgRibbon* createRibbonEffect( const osg::Vec3& pointA,
         const osg::Vec3& pointB );

      virtual osg::Node* findFromCache( DtModelDefinition& definition );
     
   protected:

      osg::ref_ptr<DtOsgRibbon> myRibbon;
      DtUniqueID myParentId;
      bool myOcclusionEnabled;
      bool myColorSet;
      osg::Vec4 myColor;
      bool myNewParticleVisible;
      osg::Vec3 myPositionOffset;

      //  When the class is destructed, the parent scene object may or may not 
      // exist.  Using a separate connection variable makes it possible to
      // 'disconnect' even if the scene object has been deleted.
      boost::signalslib::connection mySceneObjectConnection;

   };


   class DT_DLL_VRVOSG DtDecalModelInstanceCreator
      : public DtModelInstanceCreator
   {
   public:

      static void registerCreator( DtDe& de );

      virtual ~DtDecalModelInstanceCreator();

      virtual DtModelInstance* create( DtDe& de );

   protected:

      DtDecalModelInstanceCreator();

   };

}