payloads/libpayload/curses/menu/m_items.c

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  28
  29 /****************************************************************************
  30  *   Author:  Juergen Pfeifer, 1995,1997                                    *
  31  ****************************************************************************/
  32
  33 /***************************************************************************
  34 * Module m_items                                                           *
  35 * Connect and disconnect items to and from menus                           *
  36 ***************************************************************************/
  37
  38 #include "menu.priv.h"
  39
  40 MODULE_ID("$Id: m_items.c,v 1.17 2010/01/23 21:20:10 tom Exp $")
  41
  42 /*---------------------------------------------------------------------------
  43 |   Facility      :  libnmenu
  44 |   Function      :  int set_menu_items(MENU *menu, ITEM **items)
  45 |
  46 |   Description   :  Sets the item pointer array connected to menu.
  47 |
  48 |   Return Values :  E_OK           - success
  49 |                    E_POSTED       - menu is already posted
  50 |                    E_CONNECTED    - one or more items are already connected
  51 |                                     to another menu.
  52 |                    E_BAD_ARGUMENT - An incorrect menu or item array was
  53 |                                     passed to the function
  54 +--------------------------------------------------------------------------*/
  55 NCURSES_EXPORT(int)
  56 set_menu_items(MENU * menu, ITEM ** items)
  57 {
  58   T((T_CALLED("set_menu_items(%p,%p)"), (void *)menu, (void *)items));
  59
  60   if (!menu || (items && !(*items)))
  61     RETURN(E_BAD_ARGUMENT);
  62
  63   if (menu->status & _POSTED)
  64     RETURN(E_POSTED);
  65
  66   if (menu->items)
  67     _nc_Disconnect_Items(menu);
  68
  69   if (items)
  70     {
  71       if (!_nc_Connect_Items(menu, items))
  72         RETURN(E_CONNECTED);
  73     }
  74
  75   menu->items = items;
  76   RETURN(E_OK);
  77 }
  78
  79 /*---------------------------------------------------------------------------
  80 |   Facility      :  libnmenu
  81 |   Function      :  ITEM **menu_items(const MENU *menu)
  82 |
  83 |   Description   :  Returns a pointer to the item pointer array of the menu
  84 |
  85 |   Return Values :  NULL on error
  86 +--------------------------------------------------------------------------*/
  87 NCURSES_EXPORT(ITEM **)
  88 menu_items(const MENU * menu)
  89 {
  90   T((T_CALLED("menu_items(%p)"), (const void *)menu));
  91   returnItemPtr(menu ? menu->items : (ITEM **) 0);
  92 }
  93
  94 /*---------------------------------------------------------------------------
  95 |   Facility      :  libnmenu
  96 |   Function      :  int item_count(const MENU *menu)
  97 |
  98 |   Description   :  Get the number of items connected to the menu. If the
  99 |                    menu pointer is NULL we return -1.
 100 |
 101 |   Return Values :  Number of items or -1 to indicate error.
 102 +--------------------------------------------------------------------------*/
 103 NCURSES_EXPORT(int)
 104 item_count(const MENU * menu)
 105 {
 106   T((T_CALLED("item_count(%p)"), (const void *)menu));
 107   returnCode(menu ? menu->nitems : -1);
 108 }
 109
 110 /* m_items.c ends here */