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 /*LINTLIBRARY*/
32
33 #include <sys/types.h>
34 #include "curses_inc.h"
35
36 /*
37 * Move(cury, curx) of win to(y, x).
38 * It is guaranteed that the cursor is left at the start
39 * of a whole character nearest to(y, x).
40 */
41
42 int
wmbmove(WINDOW * win,int y,int x)43 wmbmove(WINDOW *win, int y, int x)
44 {
45 chtype *wcp, *wp, *ep;
46
47 if (y < 0 || x < 0 || y >= win->_maxy || x >= win->_maxx)
48 return (ERR);
49
50 if (_scrmax > 1) {
51 wcp = win->_y[y];
52 wp = wcp + x;
53 ep = wcp + win->_maxx;
54
55 /* make wp points to the start of a character */
56 if (ISCBIT(*wp)) {
57 for (; wp >= wcp; --wp)
58 if (!ISCBIT(*wp))
59 break;
60 if (wp < wcp) {
61 wp = wcp+x+1;
62 for (; wp < ep; ++wp)
63 if (!ISCBIT(*wp))
64 break;
65 }
66 }
67
68 /* make sure that the character is whole */
69 if (wp + _curs_scrwidth[TYPE(*wp)] > ep)
70 return (ERR);
71
72 /* the new x position */
73 /*LINTED*/
74 x = (int)(wp - wcp);
75 }
76
77 if (y != win->_cury || x != win->_curx) {
78 win->_nbyte = -1;
79 /*LINTED*/
80 win->_cury = (short)y;
81 /*LINTED*/
82 win->_curx = (short)x;
83 }
84
85 return (win->_immed ? wrefresh(win) : OK);
86 }
87