xref: /netbsd/lib/libcurses/move.c (revision 6550d01e)
1 /*	$NetBSD: move.c,v 1.17 2010/02/23 19:48:26 drochner 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 1.17 2010/02/23 19:48:26 drochner 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 	return wmove(stdscr, y, x);
53 }
54 
55 #endif
56 
57 /*
58  * wmove --
59  *	Moves the cursor to the given point.
60  */
61 int
62 wmove(WINDOW *win, int y, int x)
63 {
64 
65 #ifdef DEBUG
66 	__CTRACE(__CTRACE_MISC, "wmove: (%d, %d)\n", y, x);
67 #endif
68 	if (x < 0 || y < 0)
69 		return (ERR);
70 	if (x >= win->maxx || y >= win->maxy)
71 		return (ERR);
72 	win->curx = x;
73 	win->alines[win->cury]->flags &= ~__ISPASTEOL;
74 	win->cury = y;
75 	win->alines[y]->flags &= ~__ISPASTEOL;
76 	return (OK);
77 }
78 
79 void
80 wcursyncup(WINDOW *win)
81 {
82 
83 	while (win->orig) {
84 		wmove(win->orig, win->cury + win->begy - win->orig->begy,
85 			win->curx + win->begx - win->orig->begx);
86 		win = win->orig;
87 	}
88 }
89