xref: /freebsd/contrib/ncurses/menu/m_pad.c (revision 7937bfbc0ca53fe7cdd0d54414f9296e273a518e)
1 /****************************************************************************
2  * Copyright 2020,2021 Thomas E. Dickey                                     *
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29 
30 /****************************************************************************
31  *   Author:  Juergen Pfeifer, 1995,1997                                    *
32  ****************************************************************************/
33 
34 /***************************************************************************
35 * Module m_pad                                                             *
36 * Control menus padding character                                          *
37 ***************************************************************************/
38 
39 #include "menu.priv.h"
40 
41 MODULE_ID("$Id: m_pad.c,v 1.17 2021/06/17 21:20:30 tom Exp $")
42 
43 /* Macro to redraw menu if it is posted and changed */
44 #define Refresh_Menu(menu) \
45    if ( (menu) && ((menu)->status & _POSTED) )\
46    {\
47       _nc_Draw_Menu( menu );\
48       _nc_Show_Menu( menu ); \
49    }
50 
51 /*---------------------------------------------------------------------------
52 |   Facility      :  libnmenu
53 |   Function      :  int set_menu_pad(MENU* menu, int pad)
54 |
55 |   Description   :  Set the character to be used to separate the item name
56 |                    from its description. This must be a printable
57 |                    character.
58 |
59 |   Return Values :  E_OK              - success
60 |                    E_BAD_ARGUMENT    - an invalid value has been passed
61 +--------------------------------------------------------------------------*/
62 MENU_EXPORT(int)
63 set_menu_pad(MENU *menu, int pad)
64 {
65   bool do_refresh = (menu != (MENU *)0);
66 
67   T((T_CALLED("set_menu_pad(%p,%d)"), (void *)menu, pad));
68 
69   if (!isprint(UChar(pad)))
70     RETURN(E_BAD_ARGUMENT);
71 
72   Normalize_Menu(menu);
73   menu->pad = (unsigned char)pad;
74 
75   if (do_refresh)
76     Refresh_Menu(menu);
77 
78   RETURN(E_OK);
79 }
80 
81 /*---------------------------------------------------------------------------
82 |   Facility      :  libnmenu
83 |   Function      :  int menu_pad(const MENU *menu)
84 |
85 |   Description   :  Return the value of the padding character
86 |
87 |   Return Values :  The pad character
88 +--------------------------------------------------------------------------*/
89 MENU_EXPORT(int)
90 menu_pad(const MENU *menu)
91 {
92   T((T_CALLED("menu_pad(%p)"), (const void *)menu));
93   returnCode(Normalize_Menu(menu)->pad);
94 }
95 
96 /* m_pad.c ends here */
97