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/* Interface for Objective-C "collection of delegates" object
   Copyright (C) 1993 Free Software Foundation, Inc.

   Written by:  R. Andrew McCallum <mccallum@cs.rochester.edu>
   Dept. of Computer Science, U. of Rochester, Rochester, NY  14627

   This file is part of the GNU Objective-C Collection library.

   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
   version 2 of the License, or (at your option) any later version.
   
   This library 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
   Library General Public License for more details.

   You should have received a copy of the GNU Library General Public
   License along with this library; if not, write to the Free
   Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/ 

/* Using this object, a delegator can have an arbitrary number of
   delegates.  Send a message to this object and the message will get
   forwarded to the delegates on the list. */

#ifndef __DelegateList_h_INCLUDE_GNU
#define __DelegateList_h_INCLUDE_GNU

#include <objc/objc-api.h>
#include "Array.h"

/* Available sending behaviors */
enum DelegateListSendBehavior {SEND_TO_ALL = 0, 
			       SEND_TO_FIRST_RESPONDER,
			       SEND_UNTIL_YES,
			       SEND_UNTIL_NO};

@interface DelegateList
{
  Class* isa;
  @public
  unsigned char _send_behavior;
  Array *_list;
}

// CREATING AND FREEING;
+ alloc;
+ new;
- init;
- free;

// MANIPULATING LIST OF DELEGATES;
- delegateListAddObject: anObject;
- delegateListRemoveObject: anObject;
- (BOOL) delegateListIncludesObject: anObject;
- delegateListList;
- (unsigned char) delegateListSendBehavior;
- delegateListSetSendBehavior: (unsigned char)b;

// FOR PASSING ALL OTHER MESSAGES TO DELEGATES;
- forward:(SEL)aSel :(arglist_t)argFrame;

@end

#endif /* __DelegateList_h_INCLUDE_GNU */

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