TrackedSurfaceProjection.h

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/*************** <auto-copyright.pl BEGIN do not edit this line> **************
 *
 * VR Juggler is (C) Copyright 1998-2005 by Iowa State University
 *
 * Original Authors:
 *   Allen Bierbaum, Christopher Just,
 *   Patrick Hartling, Kevin Meinert,
 *   Carolina Cruz-Neira, Albert Baker
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Library General Public
 * License as published by the Free Software Foundation; either
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 * File:          $RCSfile$
 * Date modified: $Date: 2006-09-07 08:49:11 -0500 (Thu, 07 Sep 2006) $
 * Version:       $Revision: 19311 $
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#ifndef _VRJ_TRACKED_WALL_PROJECTION_H_
#define _VRJ_TRACKED_WALL_PROJECTION_H_

#include <vrj/vrjConfig.h>
#include <vrj/Display/SurfaceProjection.h>
#include <vrj/Util/Debug.h>
#include <gadget/Type/PositionInterface.h>


namespace vrj
{

class Matrix;

class TrackedSurfaceProjection : public SurfaceProjection
{
public:
   TrackedSurfaceProjection(const gmtl::Point3f& llCorner,
                            const gmtl::Point3f& lrCorner,
                            const gmtl::Point3f& urCorner,
                            const gmtl::Point3f& ulCorner,
                            const std::string& trackerName)
      : SurfaceProjection(llCorner, lrCorner, urCorner, ulCorner)
      , mOriginalLLCorner(llCorner)
      , mOriginalLRCorner(lrCorner)
      , mOriginalURCorner(urCorner)
      , mOriginalULCorner(ulCorner)
   {
      //XXX: Watch for timing problems here if trakcer is not inited first.
      //     It shoulbe be though from dependency checking
      mTracker.init(trackerName);              // Intialize the tracker
   }

   virtual ~TrackedSurfaceProjection()
   {
      /* Do nothing. */ ;
   }

   virtual void config(jccl::ConfigElementPtr element)
   {
      Projection::config(element);        // Call base class config first
   }

   virtual void calcViewMatrix(const gmtl::Matrix44f& eyePos,
                               const float scaleFactor);

   void updateSurfaceParams(const float scaleFactor);

   std::ostream& outStream(std::ostream& out,
                           const unsigned int indentLevel = 0);

private:
   gadget::PositionInterface    mTracker;

   gmtl::Point3f mOriginalLLCorner;
   gmtl::Point3f mOriginalLRCorner;
   gmtl::Point3f mOriginalURCorner;
   gmtl::Point3f mOriginalULCorner;
};

}


#endif

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