1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License, Version 1.0 only
6 * (the "License"). You may not use this file except in compliance
7 * with the License.
8 *
9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 * or http://www.opensolaris.org/os/licensing.
11 * See the License for the specific language governing permissions
12 * and limitations under the License.
13 *
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 *
20 * CDDL HEADER END
21 */
22 /* Copyright (c) 1988 AT&T */
23 /* All Rights Reserved */
24
25
26 /*
27 * Copyright (c) 1997, by Sun Microsystems, Inc.
28 * All rights reserved.
29 */
30
31 #pragma ident "%Z%%M% %I% %E% SMI"
32
33 /*LINTLIBRARY*/
34
35 #include <sys/types.h>
36 #include "curses_inc.h"
37
38 /*
39 * Move(cury, curx) of win to(y, x).
40 * It is guaranteed that the cursor is left at the start
41 * of a whole character nearest to(y, x).
42 */
43
44 int
wmbmove(WINDOW * win,int y,int x)45 wmbmove(WINDOW *win, int y, int x)
46 {
47 chtype *wcp, *wp, *ep;
48
49 if (y < 0 || x < 0 || y >= win->_maxy || x >= win->_maxx)
50 return (ERR);
51
52 if (_scrmax > 1) {
53 wcp = win->_y[y];
54 wp = wcp + x;
55 ep = wcp + win->_maxx;
56
57 /* make wp points to the start of a character */
58 if (ISCBIT(*wp)) {
59 for (; wp >= wcp; --wp)
60 if (!ISCBIT(*wp))
61 break;
62 if (wp < wcp) {
63 wp = wcp+x+1;
64 for (; wp < ep; ++wp)
65 if (!ISCBIT(*wp))
66 break;
67 }
68 }
69
70 /* make sure that the character is whole */
71 if (wp + _curs_scrwidth[TYPE(*wp)] > ep)
72 return (ERR);
73
74 /* the new x position */
75 /*LINTED*/
76 x = (int)(wp - wcp);
77 }
78
79 if (y != win->_cury || x != win->_curx) {
80 win->_nbyte = -1;
81 /*LINTED*/
82 win->_cury = (short)y;
83 /*LINTED*/
84 win->_curx = (short)x;
85 }
86
87 return (win->_immed ? wrefresh(win) : OK);
88 }
89