workbench/classes/gadgets/aroslist/aroslist_intern.h

   1 /*
   2     Copyright © 1995-2005, The AROS Development Team. All rights reserved.
   3     $Id$
   4 */
   5
   6 #ifndef AROSLIST_INTERN_H
   7 #define AROSLIST_INTERN_H
   8
   9
  10
  11 #ifndef EXEC_TYPES_H
  12 #    include <exec/types.h>
  13 #endif
  14 #ifndef EXEC_LIBRARIES_H
  15 #    include <exec/libraries.h>
  16 #endif
  17 #ifndef EXEC_LISTS_H
  18 #   include <exec/lists.h>
  19 #endif
  20 #ifndef DOS_BPTR_H
  21 #   include <dos/bptr.h>
  22 #endif
  23 #ifndef UTILTY_HOOKS_H
  24 #   include <utility/hooks.h>
  25 #endif
  26
  27 struct ListEntry
  28 {
  29     struct ListEntry *le_Next;
  30     UBYTE             le_Flags;
  31
  32     APTR             le_Item; /* The inserted item */
  33 };
  34
  35 /* Flag bits for le_Flags */
  36 #define LEFLG_SELECTED (1 << 0)
  37
  38
  39 struct ListData
  40 {
  41     LONG                ld_NumEntries;
  42     /* How any entries are pssible to put into currently  allocated buffer */
  43     LONG                ld_NumAllocated;
  44     struct ListEntry    *ld_EntryTables;
  45     struct ListEntry    *ld_UnusedEntries;
  46     struct ListEntry    **ld_PointerArray;
  47     struct Hook         *ld_ConstructHook;
  48     struct Hook         *ld_DestructHook;
  49     APTR                ld_Pool;
  50     LONG                ld_Active;
  51 };
  52
  53
  54 #define LD(x) ((struct ListData *)x)
  55
  56 #undef UB
  57 #define UB(x) ((UBYTE *)x)
  58
  59 #define NUMENTRIES_TO_ADD 100
  60
  61
  62 /* Macro to add a filentry at the head of a filentry list */
  63 #define AddLEHead(l, le)        \
  64     le->le_Next = l;            \
  65     l = le;
  66
  67 #define NewLEList(l) \
  68 l = NULL;
  69
  70 #define IsLEListEmpty(l) \
  71 (l != NULL)
  72
  73 #define RemLEHead(l) \
  74 l = l->le_Next;
  75
  76
  77 /**************/
  78 /* Prototypes */
  79 /**************/
  80
  81 struct ListEntry **AllocEntries(ULONG, struct ListData *);
  82 ULONG InsertItems(APTR *, struct ListEntry **, LONG, struct ListData *);
  83 ULONG CountItems(APTR *);
  84
  85 #endif /* AROSLIST_INTERN_H */