Attrib.h

/********************************************************************/
/* Copyright (c) 2015 DG Technologies Inc. and Yuzi Mizuno          */
/* All rights reserved.                                             */
/********************************************************************/
#ifndef _MGAttrib_HH_
#define _MGAttrib_HH_

#include "mg/Pvector.h"
#include "mg/Gel.h"
#include "mg/types.h"

//
//Define MGAttrib Class.

class MGIfstream;
class MGOfstream;
class MGAttrib;
class MGGLAttrib;
class MGContext;


class MG_DLL_DECLR MGAttrib: public MGGel{

public:

virtual ~MGAttrib();

virtual MGAttrib& operator=(const MGAttrib& gel2){MGGel::operator=(gel2); return *this;};


virtual std::ostream& out(std::ostream&) const=0;

MGAttrib* attrib(){return this;};
const MGAttrib* attrib()const{return this;};

virtual long identify_type() const{return MGATTRIB_TID;};

const MGObject* includes_object()const{return 0;};

MGObject* includes_object(){return 0;};

protected:

virtual void ReadMembers(MGIfstream& buf);

virtual void WriteMembers(MGOfstream& buf)const;

private:

friend class MGIfstream;
friend class MGOfstream;

};

typedef MGPvector<MGGLAttrib> MGGLAttribs;

MG_DLL_DECLR MGAttrib* MGNullAttrib(long TID);
 // end of GelRelated group
#endif