1 /*
2 * Copyright (c) 1981, 1993, 1994
3 * The Regents of the University of California. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. Neither the name of the University nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 */
29
30 #ifndef lint
31 static char sccsid[] = "@(#)touchwin.c 8.2 (Berkeley) 5/4/94";
32 #endif /* not lint */
33
34 #include "curses.h"
35
36 /*
37 * touchline --
38 * Touch a given line.
39 */
40 int
touchline(win,y,sx,ex)41 touchline(win, y, sx, ex)
42 WINDOW *win;
43 register int y, sx, ex;
44 {
45 return (__touchline(win, y, sx, ex, 1));
46 }
47
48
49 /*
50 * touchwin --
51 * Make it look like the whole window has been changed.
52 */
53 int
touchwin(win)54 touchwin(win)
55 register WINDOW *win;
56 {
57 register int y, maxy;
58
59 #ifdef DEBUG
60 __CTRACE("touchwin: (%0.2o)\n", win);
61 #endif
62 maxy = win->maxy;
63 for (y = 0; y < maxy; y++)
64 __touchline(win, y, 0, win->maxx - 1, 1);
65 return (OK);
66 }
67
68
69 int
__touchwin(win)70 __touchwin(win)
71 register WINDOW *win;
72 {
73 register int y, maxy;
74
75 #ifdef DEBUG
76 __CTRACE("touchwin: (%0.2o)\n", win);
77 #endif
78 maxy = win->maxy;
79 for (y = 0; y < maxy; y++)
80 __touchline(win, y, 0, win->maxx - 1, 0);
81 return (OK);
82 }
83
84 int
__touchline(win,y,sx,ex,force)85 __touchline(win, y, sx, ex, force)
86 register WINDOW *win;
87 register int y, sx, ex;
88 int force;
89 {
90 #ifdef DEBUG
91 __CTRACE("touchline: (%0.2o, %d, %d, %d, %d)\n", win, y, sx, ex, force);
92 __CTRACE("touchline: first = %d, last = %d\n",
93 *win->lines[y]->firstchp, *win->lines[y]->lastchp);
94 #endif
95 if (force)
96 win->lines[y]->flags |= __FORCEPAINT;
97 sx += win->ch_off;
98 ex += win->ch_off;
99 if (!(win->lines[y]->flags & __ISDIRTY)) {
100 win->lines[y]->flags |= __ISDIRTY;
101 *win->lines[y]->firstchp = sx;
102 *win->lines[y]->lastchp = ex;
103 } else {
104 if (*win->lines[y]->firstchp > sx)
105 *win->lines[y]->firstchp = sx;
106 if (*win->lines[y]->lastchp < ex)
107 *win->lines[y]->lastchp = ex;
108 }
109 #ifdef DEBUG
110 __CTRACE("touchline: first = %d, last = %d\n",
111 *win->lines[y]->firstchp, *win->lines[y]->lastchp);
112 #endif
113 return (OK);
114 }
115
116
117