xref: /freebsd/contrib/ncurses/menu/m_scale.c (revision 0b3105a37d7adcadcb720112fed4dc4e8040be99)
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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 */
77