freebsd-nq/contrib/ncurses/menu/m_scale.c

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/****************************************************************************
 *   Author: Juergen Pfeifer <juergen.pfeifer@gmx.net> 1995,1997            *
 ****************************************************************************/

/***************************************************************************
* Module m_scale                                                           *
* Menu scaling routine                                                     *
***************************************************************************/

#include "menu.priv.h"

MODULE_ID("$Id: m_scale.c,v 1.5 2000/12/10 02:16:48 tom Exp $")

/*---------------------------------------------------------------------------
|   Facility      :  libnmenu  
|   Function      :  int scale_menu(const MENU *menu)
|   
|   Description   :  Returns the minimum window size necessary for the
|                    subwindow of menu.  
|
|   Return Values :  E_OK                  - success
|                    E_BAD_ARGUMENT        - invalid menu pointer
|                    E_NOT_CONNECTED       - no items are connected to menu
+--------------------------------------------------------------------------*/
NCURSES_EXPORT(int)
scale_menu (const MENU *menu, int *rows, int *cols)
{
  if (!menu) 
    RETURN( E_BAD_ARGUMENT );
  
  if (menu->items && *(menu->items))
    {
      if (rows)
	*rows = menu->height;
      if (cols)
	*cols = menu->width;
      RETURN(E_OK);
    }
  else
    RETURN( E_NOT_CONNECTED );
}

/* m_scale.c ends here */