1 /*
2 * Copyright 2004 Sun Microsystems, Inc. All rights reserved.
3 * Use is subject to license terms.
4 */
5
6 /* Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T */
7 /* All Rights Reserved */
8
9 /*
10 * Copyright (c) 1980 Regents of the University of California.
11 * All rights reserved. The Berkeley software License Agreement
12 * specifies the terms and conditions for redistribution.
13 */
14
15 /*LINTLIBRARY*/
16
17 #ifndef lint
18 static char
19 sccsid[] = "@(#)touchwin.c 1.6 88/02/08 SMI"; /* from UCB 5.1 85/06/07 */
20 #endif /* not lint */
21
22 #include "curses.ext"
23
24 /*
25 * make it look like the whole window has been changed.
26 *
27 */
28
29 int
touchwin(WINDOW * win)30 touchwin(WINDOW *win)
31 {
32 int y, maxy;
33
34 #ifdef DEBUG
35 fprintf(outf, "TOUCHWIN(%0.2o)\n", win);
36 #endif
37 maxy = win->_maxy;
38 for (y = 0; y < maxy; y++)
39 (void) touchline(win, y, 0, win->_maxx - 1);
40 return (OK);
41 }
42
43 /*
44 * touch a given line
45 */
46
47 int
touchline(WINDOW * win,int y,int sx,int ex)48 touchline(WINDOW *win, int y, int sx, int ex)
49 {
50 #ifdef DEBUG
51 fprintf(outf, "TOUCHLINE(%0.2o, %d, %d, %d)\n", win, y, sx, ex);
52 fprintf(outf, "TOUCHLINE:first = %d, last = %d\n",
53 win->_firstch[y], win->_lastch[y]);
54 #endif
55 sx += win->_ch_off;
56 ex += win->_ch_off;
57 if (win->_firstch[y] == _NOCHANGE) {
58 win->_firstch[y] = (short)sx;
59 win->_lastch[y] = (short)ex;
60 } else {
61 if (win->_firstch[y] > sx)
62 win->_firstch[y] = (short)sx;
63 if (win->_lastch[y] < ex)
64 win->_lastch[y] = (short)ex;
65 }
66 #ifdef DEBUG
67 fprintf(outf, "TOUCHLINE:first = %d, last = %d\n",
68 win->_firstch[y], win->_lastch[y]);
69 #endif
70 return (OK);
71 }
72