lib_vline.c revision 76726 
1/****************************************************************************
2 * Copyright (c) 1998,1999,2000 Free Software Foundation, Inc.              *
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13 * in all copies or substantial portions of the Software.                   *
14 *                                                                          *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
16 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
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28
29/****************************************************************************
30 *  Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995               *
31 *     and: Eric S. Raymond <esr@snark.thyrsus.com>                         *
32 ****************************************************************************/
33
34/*
35**	lib_vline.c
36**
37**	The routine wvline().
38**
39*/
40
41#include <curses.priv.h>
42
43MODULE_ID("$Id: lib_vline.c,v 1.7 2000/12/10 02:43:28 tom Exp $")
44
45NCURSES_EXPORT(int)
46wvline(WINDOW *win, chtype ch, int n)
47{
48    int code = ERR;
49    NCURSES_SIZE_T row, col;
50    NCURSES_SIZE_T end;
51
52    T((T_CALLED("wvline(%p,%s,%d)"), win, _tracechtype(ch), n));
53
54    if (win) {
55	row = win->_cury;
56	col = win->_curx;
57	end = row + n - 1;
58	if (end > win->_maxy)
59	    end = win->_maxy;
60
61	if (ch == 0)
62	    ch = ACS_VLINE;
63	ch = _nc_render(win, ch);
64
65	while (end >= row) {
66	    struct ldat *line = &(win->_line[end]);
67	    line->text[col] = ch;
68	    CHANGED_CELL(line, col);
69	    end--;
70	}
71
72	_nc_synchook(win);
73	code = OK;
74    }
75    returnCode(code);
76}
77