#ifndef INTUITION_CLASSES_H
#define INTUITION_CLASSES_H 1
/*
** $Filename: intuition/classes.h $
** $Release: 2.04 Includes, V37.4 $
** $Revision: 36.2 $
** $Date: 91/11/08 $
**
** Used only by class implementors
**
** (C) Copyright 1989-1991 Commodore-Amiga, Inc.
** All Rights Reserved
*/

#ifndef UTILITY_HOOKS_H
#include <utility/hooks.h>
#endif

#ifndef INTUITION_CLASSUSR_H
#include <intuition/classusr.h>
#endif






typedef struct IClass {
 struct Hook cl_Dispatcher;
 ULONG cl_Reserved; 
 struct IClass *cl_Super;
 ClassID cl_ID;

 
 UWORD cl_InstOffset;
 UWORD cl_InstSize;

 ULONG cl_UserData; 
 ULONG cl_SubclassCount;
 
 ULONG cl_ObjectCount;
 
 ULONG cl_Flags;
#define CLF_INLIST 0x00000001 
} Class;


#define INST_DATA( cl, o ) ((VOID *) (((UBYTE *)o)+cl->cl_InstOffset))


#define SIZEOF_INSTANCE( cl ) ((cl)->cl_InstOffset + (cl)->cl_InstSize \
 + sizeof (struct _Object ))






struct _Object {
 struct MinNode o_Node;
 struct IClass *o_Class;
};


#define _OBJ( o ) ((struct _Object *)(o))


#define BASEOBJECT( _obj ) ( (Object *) (_OBJ(_obj)+1) )


#define _OBJECT( o ) (_OBJ(o) - 1)


#define OCLASS( o ) ( (_OBJECT(o))->o_Class )

#endif