TypedField.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 __TYPEDFIELD_H__
#define __TYPEDFIELD_H__

#include <sstream>
#include "TypedFieldCheck.h"

namespace H3D {
  using namespace TypedFieldTypeCheck;

  template< class BaseField, 
            class RequiredArgTypes, 
            class OptionalArgTypes = void >
  class TypedField : public BaseField {
  public:
    TypedField() {
      try {
        checkTemplateArguments();
      } catch( const InvalidTemplateArguments &e ) {
        stringstream s;
        s << e << " in definition of field named \"" << this->getFullName() 
          << "\". ";
        throw TypedFieldError( s.str() );
      }
    }
        
  protected:
    void checkFieldType( Field *f, int index ) {
      try {
        TypedFieldCheck< RequiredArgTypes,
          OptionalArgTypes >::checkFieldType( f, index, 0 );
      } catch( TypedFieldError &e ) {
        stringstream s;
        s << e.message << " Source field: \"" << f->getFullName() 
          << "\". Destination field: \"" << this->getFullName()
          << "\".";
        e.message = s.str();
        throw e;
      }
    }

    void checkTemplateArguments() {
      TypedFieldCheck< RequiredArgTypes,
        OptionalArgTypes >::checkTemplateArguments();
    }
  }; 
}

#endif

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