release/src/router/libncurses/menu/m_scale.c

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  28
  29 /****************************************************************************
  30  *   Author:  Juergen Pfeifer, 1995,1997                                    *
  31  ****************************************************************************/
  32
  33 /***************************************************************************
  34 * Module m_scale                                                           *
  35 * Menu scaling routine                                                     *
  36 ***************************************************************************/
  37
  38 #include "menu.priv.h"
  39
  40 MODULE_ID("$Id: m_scale.c,v 1.10 2010/01/23 21:20:10 tom Exp $")
  41
  42 /*---------------------------------------------------------------------------
  43 |   Facility      :  libnmenu
  44 |   Function      :  int scale_menu(const MENU *menu)
  45 |
  46 |   Description   :  Returns the minimum window size necessary for the
  47 |                    subwindow of menu.
  48 |
  49 |   Return Values :  E_OK                  - success
  50 |                    E_BAD_ARGUMENT        - invalid menu pointer
  51 |                    E_NOT_CONNECTED       - no items are connected to menu
  52 +--------------------------------------------------------------------------*/
  53 NCURSES_EXPORT(int)
  54 scale_menu(const MENU * menu, int *rows, int *cols)
  55 {
  56   T((T_CALLED("scale_menu(%p,%p,%p)"),
  57      (const void *)menu,
  58      (void *)rows,
  59      (void *)cols));
  60
  61   if (!menu)
  62     RETURN(E_BAD_ARGUMENT);
  63
  64   if (menu->items && *(menu->items))
  65     {
  66       if (rows)
  67         *rows = menu->height;
  68       if (cols)
  69         *cols = menu->width;
  70       RETURN(E_OK);
  71     }
  72   else
  73     RETURN(E_NOT_CONNECTED);
  74 }
  75
  76 /* m_scale.c ends here */