rom/intuition/offmenu.c

   1 /*
   2     Copyright © 1995-2013, 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 *****************************************************************************/
  46 {
  47     AROS_LIBFUNC_INIT
  48
  49     int              i;
  50     struct Menu     *thismenu;
  51     struct MenuItem *thisitem;
  52
  53     DEBUG_OFFMENU(dprintf("OffMenu: Window 0x%lx MenuNumber 0x%lx\n", window, menunumber));
  54
  55     IntuitionBase = IntuitionBase;  /* shut up the compiler */
  56
  57     thismenu = window->MenuStrip;
  58
  59     if (MENUNUM(menunumber) != NOMENU)
  60     {
  61         for (i = 0; i < MENUNUM(menunumber) && thismenu; i++)
  62         {
  63             thismenu = thismenu->NextMenu;
  64         }
  65
  66         if (thismenu)
  67         {
  68             if (ITEMNUM(menunumber) == NOITEM)
  69             {
  70                 thismenu->Flags &= ~MENUENABLED;
  71             }
  72             else
  73             {
  74                 thisitem = thismenu->FirstItem;
  75
  76                 for (i = 0; i < ITEMNUM(menunumber) && thisitem; i++)
  77                 {
  78                     thisitem = thisitem->NextItem;
  79                 }
  80
  81                 if (thisitem)
  82                 {
  83                     if (SUBNUM(menunumber) != NOSUB && thisitem->SubItem)
  84                     {
  85                         thisitem = thisitem->SubItem;
  86                         for (i = 0; i < SUBNUM(menunumber) && thisitem; i++)
  87                         {
  88                             thisitem = thisitem->NextItem;
  89                         }
  90                     }
  91                 }
  92
  93                 if (thisitem)
  94                 {
  95                     thisitem->Flags &= ~ITEMENABLED;
  96                 }
  97             }
  98
  99         } /* if (thismenu) */
 100
 101     } /* if (MENUNUM(menunumber) != NOMENU) */
 102
 103     AROS_LIBFUNC_EXIT
 104 } /* OffMenu */