MatrixTransform.h

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//    Copyright 2004, SenseGraphics AB
//
//    This file is part of H3D API.
//
//    H3D API is free software; you can redistribute it and/or modify
//    it under the terms of the GNU General Public License as published by
//    the Free Software Foundation; either version 2 of the License, or
//    (at your option) any later version.
//
//    H3D API 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
//    GNU General Public License for more details.
//
//    You should have received a copy of the GNU General Public License
//    along with H3D API; if not, write to the Free Software
//    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
//
//    A commercial license is also available. Please contact us at 
//    www.sensegraphics.com for more information.
//
//
//
#ifndef __MATRIXTRANSFORM_H__
#define __MATRIXTRANSFORM_H__

#include "X3DGroupingNode.h"

namespace H3D {

  class H3DAPI_API MatrixTransform : public X3DGroupingNode {
  public:
    typedef H3D::SFMatrix4f SFMatrix4f;

    class H3DAPI_API SFTransformedBound: 
      public TypedField< SFBound, Types< SFMatrix4f, SFBound > > {
    public:
    
      ~SFTransformedBound() {
        value = NULL;
      }

    protected:
      virtual void update();

      virtual void onAdd( Bound *b ) {
        SFBound::onAdd( b );
        TransformedBoxBound *tbb = dynamic_cast< TransformedBoxBound * >( b );
        if( b && tbb ) {
          MatrixTransform *mt = static_cast< MatrixTransform * >(owner);
          mt->bound->route( tbb->boxBound );
          mt->matrix->route( tbb->matrix );
        }
      }
      
      virtual void onRemove( Bound *b ) {
        TransformedBoxBound *tbb = dynamic_cast< TransformedBoxBound * >( b );
        if( b && tbb ) {
          MatrixTransform *mt = static_cast< MatrixTransform * >(owner);
          mt->bound->unroute( tbb->boxBound );
          mt->matrix->unroute( tbb->matrix );
        }
        SFBound::onRemove( b );
      }

      friend class MatrixTransform;
    };
    
    MatrixTransform( Inst< MFChild    > _addChildren              = 0,
                     Inst< MFChild    > _removeChildren           = 0,
                     Inst< MFChild    > _children                 = 0,
                     Inst< SFNode     > _metadata                 = 0,
                     Inst< SFBound    > _bound                    = 0,
                     Inst< SFVec3f    > _bboxCenter               = 0,
                     Inst< SFVec3f    > _bboxSize                 = 0,
                     Inst< SFTransformedBound > _transformedBound = 0,    
                     Inst< SFMatrix4f > _matrix                   = 0,
                     Inst< SFMatrix4f > _accumulatedForward       = 0,
                     Inst< SFMatrix4f > _accumulatedInverse       = 0 );

    virtual void render();

#ifdef USE_HAPTICS

    virtual void traverseSG( TraverseInfo &ti );
#endif

 
    auto_ptr< SFMatrix4f > matrix;
    
 
    auto_ptr< SFMatrix4f > accumulatedForward;
    
 
    auto_ptr< SFMatrix4f > accumulatedInverse;
    
    auto_ptr< SFTransformedBound > transformedBound;

    static H3DNodeDatabase database;
  };
}

#endif

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