xref: /netbsd-src/lib/libcurses/move.c (revision d536862b7d93d77932ef5de7eebdc48d76921b77)
1 /*	$NetBSD: move.c,v 1.23 2021/10/19 06:41:03 blymn Exp $	*/
2 
3 /*
4  * Copyright (c) 1981, 1993, 1994
5  *	The Regents of the University of California.  All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  * 3. Neither the name of the University nor the names of its contributors
16  *    may be used to endorse or promote products derived from this software
17  *    without specific prior written permission.
18  *
19  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29  * SUCH DAMAGE.
30  */
31 
32 #include <sys/cdefs.h>
33 #ifndef lint
34 #if 0
35 static char sccsid[] = "@(#)move.c	8.2 (Berkeley) 5/4/94";
36 #else
37 __RCSID("$NetBSD: move.c,v 1.23 2021/10/19 06:41:03 blymn Exp $");
38 #endif
39 #endif				/* not lint */
40 
41 #include "curses.h"
42 #include "curses_private.h"
43 
44 #ifndef _CURSES_USE_MACROS
45 /*
46  * move --
47  *	Moves the cursor to the given point on stdscr.
48  */
49 int
50 move(int y, int x)
51 {
52 
53 	return wmove(stdscr, y, x);
54 }
55 
56 #endif
57 
58 /*
59  * wmove --
60  *	Moves the cursor to the given point.
61  */
62 int
63 wmove(WINDOW *win, int y, int x)
64 {
65 	__CTRACE(__CTRACE_MISC, "wmove: win %p, (%d, %d)\n", win, y, x);
66 	if (x < 0 || y < 0)
67 		return ERR;
68 	if (x >= win->maxx || y >= win->maxy)
69 		return ERR;
70 
71 	win->curx = x;
72 	win->cury = y;
73 
74 	return OK;
75 }
76 
77 void
78 wcursyncup(WINDOW *win)
79 {
80 
81 	while (win->orig) {
82 		wmove(win->orig, win->cury + win->begy - win->orig->begy,
83 		      win->curx + win->begx - win->orig->begx);
84 		win = win->orig;
85 	}
86 }
87