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csdllist.h

00001 /*
00002     Copyright (C) 2000 by David Durant
00003 
00004     This library is free software; you can redistribute it and/or
00005     modify it under the terms of the GNU Library General Public
00006     License as published by the Free Software Foundation; either
00007     version 2 of the License, or (at your option) any later version.
00008 
00009     This library is distributed in the hope that it will be useful,
00010     but WITHOUT ANY WARRANTY; without even the implied warranty of
00011     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00012     Library General Public License for more details.
00013 
00014     You should have received a copy of the GNU Library General Public
00015     License along with this library; if not, write to the Free
00016     Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
00017 */
00018 
00019 #ifndef __CS_CSDLLIST_H__
00020 #define __CS_CSDLLIST_H__
00021 
00022 #include "cstypes.h"
00023 
00028 struct csDLListItem
00029 {
00030   csDLListItem * prevItem;   // ptr to previous node
00031   csDLListItem * nextItem;   // ptr to next node
00032   void *         theObject;  // ptr to the object
00033 };
00034 
00035 
00041 class csDLinkList
00042 {
00043 private:
00045   csDLListItem* firstItem;
00047   csDLListItem* currentItem;
00049   csDLListItem* FindListItem (void *anObj);
00050 
00051 public:
00053   csDLinkList ();
00054 
00059   ~csDLinkList ();
00060 
00066   bool AddItem (void *theObj);
00067 
00072   bool AddCurrentItem (void *theObj);
00073 
00075   void RemoveItem ();
00077   void RemoveItem (void *theObj);
00078 
00083   void* GetFirstItem ();
00084 
00089   void* PeekFirstItem ();
00090 
00095   void* GetPrevItem ();
00096 
00101   void* GetNextItem ();
00102 
00104   void* GetCurrentItem ();
00106   void* SetCurrentItem (void *theObj);
00107 };
00108 
00109 #endif // __CS_CSDLLIST_H__

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