Initial revision

git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@1 72102866-910b-0410-8b05-ffd578937521

Source/objects/DelegatePool.h

@@ -0,0 +1,68 @@
+/* Interface for Objective-C "collection of delegates" object
+   Copyright (C) 1993,1994 Free Software Foundation, Inc.
+
+   Written by:  R. Andrew McCallum <mccallum@gnu.ai.mit.edu>
+   Date: May 1993
+
+   This file is part of the GNU Objective C Class 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 __DelegatePool_h_OBJECTS_INCLUDE
+#define __DelegatePool_h_OBJECTS_INCLUDE
+
+#include <objects/stdobjects.h>
+#include <objects/Array.h>
+
+/* Available sending behaviors */
+enum DelegatePoolSendBehavior {SEND_TO_ALL = 0, 
+			       SEND_TO_FIRST_RESPONDER,
+			       SEND_UNTIL_YES,
+			       SEND_UNTIL_NO};
+
+@interface DelegatePool
+{
+  struct objc_class *isa;
+  @public
+  unsigned char _send_behavior;
+  Array *_list;
+}
+
+// CREATING AND FREEING;
++ alloc;
++ new;
+- init;
+- free;
+
+// MANIPULATING COLLECTION OF DELEGATES;
+- delegatePoolAddObject: anObject;
+- delegatePoolAddObjectIfAbsent: anObject;
+- delegatePoolRemoveObject: anObject;
+- (BOOL) delegatePoolIncludesObject: anObject;
+- delegatePoolCollection;
+- (unsigned char) delegatePoolSendBehavior;
+- delegatePoolSetSendBehavior: (unsigned char)b;
+
+// FOR PASSING ALL OTHER MESSAGES TO DELEGATES;
+- forward:(SEL)aSel :(arglist_t)argFrame;
+
+@end
+
+#endif /* __DelegatePool_h_OBJECTS_INCLUDE */