ncurses 6.0 - patch 20171028
[ncurses.git] / ncurses / base / lib_box.c
1 /****************************************************************************
2  * Copyright (c) 1998-2010,2017 Free Software Foundation, Inc.              *
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17  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
18  * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
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26  * authorization.                                                           *
27  ****************************************************************************/
28
29 /****************************************************************************
30  *  Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995               *
31  *     and: Eric S. Raymond <esr@snark.thyrsus.com>                         *
32  *     and: Thomas E. Dickey                        1996-on                 *
33  *     and: Sven Verdoolaege                        2001                    *
34  ****************************************************************************/
35
36 /*
37 **      lib_box.c
38 **
39 **      The routine wborder().
40 **
41 */
42
43 #include <curses.priv.h>
44
45 MODULE_ID("$Id: lib_box.c,v 1.25 2017/10/27 21:56:17 tom Exp $")
46
47 #if USE_WIDEC_SUPPORT
48 static NCURSES_INLINE chtype
49 _my_render(WINDOW *win, chtype ch)
50 {
51     NCURSES_CH_T wch;
52     SetChar2(wch, ch);
53     wch = _nc_render(win, wch);
54     return ((attr_t) CharOf(wch)) | AttrOf(wch);
55 }
56
57 #define RENDER_WITH_DEFAULT(ch,def) w ## ch = _my_render(win, (ch == 0) ? def : ch)
58 #else
59 #define RENDER_WITH_DEFAULT(ch,def) w ## ch = _nc_render(win, (ch == 0) ? def : ch)
60 #endif
61
62 NCURSES_EXPORT(int)
63 wborder(WINDOW *win,
64         chtype ls, chtype rs,
65         chtype ts, chtype bs,
66         chtype tl, chtype tr,
67         chtype bl, chtype br)
68 {
69     NCURSES_SIZE_T i;
70     NCURSES_SIZE_T endx, endy;
71     chtype wls, wrs, wts, wbs, wtl, wtr, wbl, wbr;
72
73     T((T_CALLED("wborder(%p,%s,%s,%s,%s,%s,%s,%s,%s)"),
74        (void *) win,
75        _tracechtype2(1, ls),
76        _tracechtype2(2, rs),
77        _tracechtype2(3, ts),
78        _tracechtype2(4, bs),
79        _tracechtype2(5, tl),
80        _tracechtype2(6, tr),
81        _tracechtype2(7, bl),
82        _tracechtype2(8, br)));
83
84     if (!win)
85         returnCode(ERR);
86
87     RENDER_WITH_DEFAULT(ls, ACS_VLINE);
88     RENDER_WITH_DEFAULT(rs, ACS_VLINE);
89     RENDER_WITH_DEFAULT(ts, ACS_HLINE);
90     RENDER_WITH_DEFAULT(bs, ACS_HLINE);
91     RENDER_WITH_DEFAULT(tl, ACS_ULCORNER);
92     RENDER_WITH_DEFAULT(tr, ACS_URCORNER);
93     RENDER_WITH_DEFAULT(bl, ACS_LLCORNER);
94     RENDER_WITH_DEFAULT(br, ACS_LRCORNER);
95
96     T(("using %s, %s, %s, %s, %s, %s, %s, %s",
97        _tracechtype2(1, wls),
98        _tracechtype2(2, wrs),
99        _tracechtype2(3, wts),
100        _tracechtype2(4, wbs),
101        _tracechtype2(5, wtl),
102        _tracechtype2(6, wtr),
103        _tracechtype2(7, wbl),
104        _tracechtype2(8, wbr)));
105
106     endx = win->_maxx;
107     endy = win->_maxy;
108
109     for (i = 0; i <= endx; i++) {
110         SetChar2(win->_line[0].text[i], wts);
111         SetChar2(win->_line[endy].text[i], wbs);
112     }
113     win->_line[endy].firstchar = win->_line[0].firstchar = 0;
114     win->_line[endy].lastchar = win->_line[0].lastchar = endx;
115
116     for (i = 0; i <= endy; i++) {
117 #if USE_WIDEC_SUPPORT
118         if (endx > 0 && isWidecExt(win->_line[i].text[endx])) {
119             SetChar2(win->_line[i].text[endx - 1], ' ');
120         }
121 #endif
122         SetChar2(win->_line[i].text[0], wls);
123         SetChar2(win->_line[i].text[endx], wrs);
124         win->_line[i].firstchar = 0;
125         win->_line[i].lastchar = endx;
126 #if USE_WIDEC_SUPPORT
127         if (isWidecExt(win->_line[i].text[1])) {
128             SetChar2(win->_line[i].text[1], ' ');
129         }
130 #endif
131     }
132     SetChar2(win->_line[0].text[0], wtl);
133     SetChar2(win->_line[0].text[endx], wtr);
134     SetChar2(win->_line[endy].text[0], wbl);
135     SetChar2(win->_line[endy].text[endx], wbr);
136
137     _nc_synchook(win);
138     returnCode(OK);
139 }