xref: /freebsd/contrib/ncurses/menu/m_spacing.c (revision dd41de95a84d979615a2ef11df6850622bf6184e)
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2  * Copyright 2020 Thomas E. Dickey                                          *
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29 
30 /****************************************************************************
31  *   Author:  Juergen Pfeifer, 1995,1997                                    *
32  ****************************************************************************/
33 
34 /***************************************************************************
35 * Module m_spacing                                                         *
36 * Routines to handle spacing between entries                               *
37 ***************************************************************************/
38 
39 #include "menu.priv.h"
40 
41 MODULE_ID("$Id: m_spacing.c,v 1.22 2020/12/12 00:38:14 tom Exp $")
42 
43 #define MAX_SPC_DESC ((TABSIZE) ? (TABSIZE) : 8)
44 #define MAX_SPC_COLS ((TABSIZE) ? (TABSIZE) : 8)
45 #define MAX_SPC_ROWS (3)
46 
47 /*---------------------------------------------------------------------------
48 |   Facility      :  libnmenu
49 |   Function      :  int set_menu_spacing(MENU *menu,int desc, int r, int c);
50 |
51 |   Description   :  Set the spacing between entries
52 |
53 |   Return Values :  E_OK                 - on success
54 +--------------------------------------------------------------------------*/
55 MENU_EXPORT(int)
56 set_menu_spacing(MENU *menu, int s_desc, int s_row, int s_col)
57 {
58   MENU *m;			/* split for ATAC workaround */
59 
60   T((T_CALLED("set_menu_spacing(%p,%d,%d,%d)"),
61      (void *)menu, s_desc, s_row, s_col));
62 
63   m = Normalize_Menu(menu);
64 
65   assert(m);
66   if (m->status & _POSTED)
67     RETURN(E_POSTED);
68 
69   if (((s_desc < 0) || (s_desc > MAX_SPC_DESC)) ||
70       ((s_row < 0) || (s_row > MAX_SPC_ROWS)) ||
71       ((s_col < 0) || (s_col > MAX_SPC_COLS)))
72     RETURN(E_BAD_ARGUMENT);
73 
74   m->spc_desc = (short)(s_desc ? s_desc : 1);
75   m->spc_rows = (short)(s_row ? s_row : 1);
76   m->spc_cols = (short)(s_col ? s_col : 1);
77   _nc_Calculate_Item_Length_and_Width(m);
78 
79   RETURN(E_OK);
80 }
81 
82 /*---------------------------------------------------------------------------
83 |   Facility      :  libnmenu
84 |   Function      :  int menu_spacing (const MENU *,int *,int *,int *);
85 |
86 |   Description   :  Retrieve info about spacing between the entries
87 |
88 |   Return Values :  E_OK             - on success
89 +--------------------------------------------------------------------------*/
90 MENU_EXPORT(int)
91 menu_spacing(const MENU *menu, int *s_desc, int *s_row, int *s_col)
92 {
93   const MENU *m;		/* split for ATAC workaround */
94 
95   T((T_CALLED("menu_spacing(%p,%p,%p,%p)"),
96      (const void *)menu,
97      (void *)s_desc,
98      (void *)s_row,
99      (void *)s_col));
100 
101   m = Normalize_Menu(menu);
102 
103   assert(m);
104   if (s_desc)
105     *s_desc = m->spc_desc;
106   if (s_row)
107     *s_row = m->spc_rows;
108   if (s_col)
109     *s_col = m->spc_cols;
110 
111   RETURN(E_OK);
112 }
113 
114 /* m_spacing.c ends here */
115