DtLineModelUpdater.h

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/*****************************************************************************
 * Copyright (c) 2017 MAK Technologies, Inc.
 * All rights reserved.
 *****************************************************************************/


#pragma once

#include <vrvCore/DtAttachableUpdater.h>

class DtTaitBryan;

namespace makVrv 
{

   class DT_DLL_VRVCORE DtLineModelUpdater : public DtAttachableUpdater
   {
   public:
      DtLineModelUpdater( DtDe& de, DtElementID id );

      virtual ~DtLineModelUpdater();

      virtual void setStartPoint( const DtVector& position );

      virtual void attachStartPoint( DtElementID id );

      virtual void setStartPointOffset( const DtVector& offset );

      virtual void setEndPoint( const DtVector& position );

      virtual void attachEndPoint( DtElementID id );

      virtual void setEndPointOffset( const DtVector& offset );

      virtual DtVector calculateStartPoint();

      virtual DtVector calculateEndPoint();

      virtual void setSceneObject( DtSceneObject* sceneObject );

      virtual void update( DtTime tNow );

   protected:

      // \brief Updates the sceneObject
      virtual void updateSceneObject( DtTime tNow ) = 0;


      struct PointInformation;

      virtual void cleanup( PointInformation& pointInfo );

      virtual DtVector offsetPoint( const DtVector& point, const DtVector& offset,
         const DtTaitBryan& rootOri = DtTaitBryan() ) const;

      virtual DtVector getAttachedPosition( PointInformation& pointInfo );

      virtual void getSceneInformation( const PointInformation& info, DtUniqueID& sceneId );



      virtual void slot_attachedSceneObjectToBeDeleted( DtUniqueID, PointInformation* );

      virtual void slot_attachedUpdaterToBeDeleted( DtUniqueID, PointInformation* );


   protected:

      struct PointInformation
      {
         PointInformation();

         bool defined;
         DtVector position;
         DtVector offset;
         int modelSet;
         DtElementID parentAttachID;
         DtSceneObject* sceneObject;

         //  When the class is destructed, the 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 sceneObjectConnection;
         boost::signalslib::connection sceneObjectUpdaterConnection;

         DtSceneObjectUpdater* updater;
      };

      PointInformation myStartPoint;
      PointInformation myEndPoint;

   };
}