xref: /onnv-gate/usr/src/lib/libcurses/screen/winwchnstr.c (revision 0:68f95e015346)
1*0Sstevel@tonic-gate /*
2*0Sstevel@tonic-gate  * CDDL HEADER START
3*0Sstevel@tonic-gate  *
4*0Sstevel@tonic-gate  * The contents of this file are subject to the terms of the
5*0Sstevel@tonic-gate  * Common Development and Distribution License, Version 1.0 only
6*0Sstevel@tonic-gate  * (the "License").  You may not use this file except in compliance
7*0Sstevel@tonic-gate  * with the License.
8*0Sstevel@tonic-gate  *
9*0Sstevel@tonic-gate  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*0Sstevel@tonic-gate  * or http://www.opensolaris.org/os/licensing.
11*0Sstevel@tonic-gate  * See the License for the specific language governing permissions
12*0Sstevel@tonic-gate  * and limitations under the License.
13*0Sstevel@tonic-gate  *
14*0Sstevel@tonic-gate  * When distributing Covered Code, include this CDDL HEADER in each
15*0Sstevel@tonic-gate  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*0Sstevel@tonic-gate  * If applicable, add the following below this CDDL HEADER, with the
17*0Sstevel@tonic-gate  * fields enclosed by brackets "[]" replaced with your own identifying
18*0Sstevel@tonic-gate  * information: Portions Copyright [yyyy] [name of copyright owner]
19*0Sstevel@tonic-gate  *
20*0Sstevel@tonic-gate  * CDDL HEADER END
21*0Sstevel@tonic-gate  */
22*0Sstevel@tonic-gate /*  Copyright (c) 1988 AT&T */
23*0Sstevel@tonic-gate /*    All Rights Reserved   */
24*0Sstevel@tonic-gate 
25*0Sstevel@tonic-gate 
26*0Sstevel@tonic-gate /*
27*0Sstevel@tonic-gate  *      Copyright (c) 1997, by Sun Microsystems, Inc.
28*0Sstevel@tonic-gate  *      All rights reserved.
29*0Sstevel@tonic-gate  */
30*0Sstevel@tonic-gate 
31*0Sstevel@tonic-gate #pragma ident	"%Z%%M%	%I%	%E% SMI"
32*0Sstevel@tonic-gate 
33*0Sstevel@tonic-gate /*LINTLIBRARY*/
34*0Sstevel@tonic-gate 
35*0Sstevel@tonic-gate #include	<sys/types.h>
36*0Sstevel@tonic-gate #include	"curses_inc.h"
37*0Sstevel@tonic-gate 
38*0Sstevel@tonic-gate /*
39*0Sstevel@tonic-gate  * Read in ncols worth of data from window win and assign the
40*0Sstevel@tonic-gate  * chars to string. NULL terminate string upon completion.
41*0Sstevel@tonic-gate  * Return the number of chtypes copied.
42*0Sstevel@tonic-gate  */
43*0Sstevel@tonic-gate 
44*0Sstevel@tonic-gate int
winwchnstr(WINDOW * win,chtype * string,int ncols)45*0Sstevel@tonic-gate winwchnstr(WINDOW *win, chtype *string, int ncols)
46*0Sstevel@tonic-gate {
47*0Sstevel@tonic-gate 	chtype	*ptr = &(win->_y[win->_cury][win->_curx]);
48*0Sstevel@tonic-gate 	int	counter = 0;
49*0Sstevel@tonic-gate 	int	maxcols = win->_maxx - win->_curx;
50*0Sstevel@tonic-gate 	int	scrw, s, wc;
51*0Sstevel@tonic-gate 	char	*mp, mbbuf[CSMAX+1];
52*0Sstevel@tonic-gate 	wchar_t	wch;
53*0Sstevel@tonic-gate 	chtype	rawc;
54*0Sstevel@tonic-gate 	chtype	attr;
55*0Sstevel@tonic-gate 
56*0Sstevel@tonic-gate 	if (ncols < 0)
57*0Sstevel@tonic-gate 		ncols = MAXINT;
58*0Sstevel@tonic-gate 
59*0Sstevel@tonic-gate 	while (ISCBIT(*ptr)) {
60*0Sstevel@tonic-gate 		ptr--;
61*0Sstevel@tonic-gate 		maxcols++;
62*0Sstevel@tonic-gate 	}
63*0Sstevel@tonic-gate 
64*0Sstevel@tonic-gate 	while ((counter < ncols) && maxcols > 0) {
65*0Sstevel@tonic-gate 		attr = *ptr & A_WATTRIBUTES;
66*0Sstevel@tonic-gate 		rawc = *ptr & A_WCHARTEXT;
67*0Sstevel@tonic-gate 		(void) mbeucw((int)RBYTE(rawc));
68*0Sstevel@tonic-gate 		scrw = mbscrw((int)RBYTE(rawc));
69*0Sstevel@tonic-gate 		for (mp = mbbuf, s = 0; s < scrw; s++, maxcols--, ptr++) {
70*0Sstevel@tonic-gate 			if ((wc = (int)RBYTE(rawc)) == MBIT)
71*0Sstevel@tonic-gate 				continue;
72*0Sstevel@tonic-gate 			/* LINTED */
73*0Sstevel@tonic-gate 			*mp++ = (char) wc;
74*0Sstevel@tonic-gate 			if ((wc = (int)(LBYTE(rawc) | MBIT)) == MBIT)
75*0Sstevel@tonic-gate 				continue;
76*0Sstevel@tonic-gate 			/* LINTED */
77*0Sstevel@tonic-gate 			*mp++ = (char) wc;
78*0Sstevel@tonic-gate 		}
79*0Sstevel@tonic-gate 		*mp = '\0';
80*0Sstevel@tonic-gate 		if (_curs_mbtowc(&wch, mbbuf, CSMAX) <= 0)
81*0Sstevel@tonic-gate 			break;
82*0Sstevel@tonic-gate 		*string++ = wch | attr;
83*0Sstevel@tonic-gate 		counter++;
84*0Sstevel@tonic-gate 	}
85*0Sstevel@tonic-gate 	if (counter < ncols)
86*0Sstevel@tonic-gate 		*string = (chtype) 0;
87*0Sstevel@tonic-gate 	return (counter);
88*0Sstevel@tonic-gate }
89