csdllist.h Source File

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 
00044 class csDLinkList
00045 {
00046 private:
00048   csDLListItem* firstItem;
00050   csDLListItem* currentItem;
00052   csDLListItem* FindListItem (void *anObj);
00053 
00054 public:
00056   csDLinkList ();
00057 
00062   ~csDLinkList ();
00063 
00069   bool AddItem (void *theObj);
00070 
00075   bool AddCurrentItem (void *theObj);
00076 
00078   void RemoveItem ();
00080   void RemoveItem (void *theObj);
00081 
00086   void* GetFirstItem ();
00087 
00092   void* PeekFirstItem ();
00093 
00098   void* GetPrevItem ();
00099 
00104   void* GetNextItem ();
00105 
00107   void* GetCurrentItem ();
00109   void* SetCurrentItem (void *theObj);
00110 };
00111 
00112 #endif // __CS_CSDLLIST_H__