1 /****************************************************************************
2  * Copyright 2020 Thomas E. Dickey                                          *
3  * Copyright 1998-2016,2017 Free Software Foundation, Inc.                  *
4  *                                                                          *
5  * Permission is hereby granted, free of charge, to any person obtaining a  *
6  * copy of this software and associated documentation files (the            *
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9  * distribute, distribute with modifications, sublicense, and/or sell       *
10  * copies of the Software, and to permit persons to whom the Software is    *
11  * furnished to do so, subject to the following conditions:                 *
12  *                                                                          *
13  * The above copyright notice and this permission notice shall be included  *
14  * in all copies or substantial portions of the Software.                   *
15  *                                                                          *
16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
17  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
18  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
19  * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
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21  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *
22  * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
23  *                                                                          *
24  * Except as contained in this notice, the name(s) of the above copyright   *
25  * holders shall not be used in advertising or otherwise to promote the     *
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29 
30 /****************************************************************************
31  *  Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995               *
32  *     and: Eric S. Raymond <esr@snark.thyrsus.com>                         *
33  *     and: Thomas E. Dickey                        1996-on                 *
34  *     and: Sven Verdoolaege                        2001                    *
35  ****************************************************************************/
36 
37 /*
38 **	lib_vline.c
39 **
40 **	The routine wvline().
41 **
42 */
43 
44 #include <curses.priv.h>
45 
46 MODULE_ID("$Id: lib_vline.c,v 1.15 2020/02/02 23:34:34 tom Exp $")
47 
48 NCURSES_EXPORT(int)
49 wvline(WINDOW *win, chtype ch, int n)
50 {
51     int code = ERR;
52 
53     T((T_CALLED("wvline(%p,%s,%d)"), (void *) win, _tracechtype(ch), n));
54 
55     if (win) {
56 	NCURSES_CH_T wch;
57 	int row = win->_cury;
58 	int col = win->_curx;
59 	int end = row + n - 1;
60 
61 	if (end > win->_maxy)
62 	    end = win->_maxy;
63 
64 	if (ch == 0)
65 	    SetChar2(wch, ACS_VLINE);
66 	else
67 	    SetChar2(wch, ch);
68 	wch = _nc_render(win, wch);
69 
70 	while (end >= row) {
71 	    struct ldat *line = &(win->_line[end]);
72 #if USE_WIDEC_SUPPORT
73 	    if (col > 0 && isWidecExt(line->text[col])) {
74 		SetChar2(line->text[col - 1], ' ');
75 	    }
76 	    if (col < win->_maxx && isWidecExt(line->text[col + 1])) {
77 		SetChar2(line->text[col + 1], ' ');
78 	    }
79 #endif
80 	    line->text[col] = wch;
81 	    CHANGED_CELL(line, col);
82 	    end--;
83 	}
84 
85 	_nc_synchook(win);
86 	code = OK;
87     }
88     returnCode(code);
89 }
90