rom/intuition/offmenu.c

   1 /*
   2     Copyright © 1995-2003, The AROS Development Team. All rights reserved.
   3     Copyright © 2001-2003, The MorphOS Development Team. All Rights Reserved.
   4     $Id$
   5 */
   6
   7 #include "intuition_intern.h"
   8
   9 /*****************************************************************************
  10
  11     NAME */
  12 #include <intuition/intuition.h>
  13
  14 AROS_LH2(void, OffMenu,
  15
  16          /*  SYNOPSIS */
  17          AROS_LHA(struct Window    *, window, A0),
  18          AROS_LHA(UWORD             , menunumber, D0),
  19
  20          /*  LOCATION */
  21          struct IntuitionBase *, IntuitionBase, 30, Intuition)
  22
  23 /*  FUNCTION
  24     Disable a whole menu, an item or a sub-item depending on
  25     the menunumber.
  26
  27     INPUTS
  28     window - The window, the menu belongs to
  29     menunumber - The packed information on what piece of menu to disable
  30
  31     RESULT
  32     None.
  33
  34     NOTES
  35
  36     EXAMPLE
  37
  38     BUGS
  39
  40     SEE ALSO
  41     OnMenu(), ResetMenuStrip()
  42
  43     INTERNALS
  44
  45     HISTORY
  46
  47 *****************************************************************************/
  48 {
  49     AROS_LIBFUNC_INIT
  50     AROS_LIBBASE_EXT_DECL(struct IntuitionBase *,IntuitionBase)
  51
  52     int              i;
  53     struct Menu     *thismenu;
  54     struct MenuItem *thisitem;
  55
  56     DEBUG_OFFMENU(dprintf("OffMenu: Window 0x%lx MenuNumber 0x%lx\n", window, menunumber));
  57
  58     IntuitionBase = IntuitionBase;  /* shut up the compiler */
  59
  60     thismenu = window->MenuStrip;
  61
  62     if (MENUNUM(menunumber) != NOMENU)
  63     {
  64         for (i = 0; i < MENUNUM(menunumber) && thismenu; i++)
  65         {
  66             thismenu = thismenu->NextMenu;
  67         }
  68
  69         if (thismenu)
  70         {
  71             if (ITEMNUM(menunumber) == NOITEM)
  72             {
  73                 thismenu->Flags &= ~MENUENABLED;
  74             }
  75             else
  76             {
  77                 thisitem = thismenu->FirstItem;
  78
  79                 for (i = 0; i < ITEMNUM(menunumber) && thisitem; i++)
  80                 {
  81                     thisitem = thisitem->NextItem;
  82                 }
  83
  84                 if (thisitem)
  85                 {
  86                     if (SUBNUM(menunumber) != NOSUB)
  87                     {
  88                         thisitem = thisitem->SubItem;
  89                         for (i = 0; i < SUBNUM(menunumber) && thisitem; i++)
  90                         {
  91                             thisitem = thisitem->NextItem;
  92                         }
  93                     }
  94                 }
  95
  96                 if (thisitem)
  97                 {
  98                     thisitem->Flags &= ~ITEMENABLED;
  99                 }
 100             }
 101
 102         } /* if (thismenu) */
 103
 104     } /* if (MENUNUM(menunumber) != NOMENU) */
 105
 106     AROS_LIBFUNC_EXIT
 107 } /* OffMenu */