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 /*
23  * Copyright 1997 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 /*	Copyright (c) 1988 AT&T	*/
28 /*	  All Rights Reserved	*/
29 
30 /*
31  * University Copyright- Copyright (c) 1982, 1986, 1988
32  * The Regents of the University of California
33  * All Rights Reserved
34  *
35  * University Acknowledgment- Portions of this document are derived from
36  * software developed by the University of California, Berkeley, and its
37  * contributors.
38  */
39 
40 #pragma ident	"%Z%%M%	%I%	%E% SMI"
41 
42 /*LINTLIBRARY*/
43 
44 #include	<sys/types.h>
45 #include	<stdlib.h>
46 #include	"curses_inc.h"
47 
48 /*
49  *	Draw a box around a window.
50  *
51  *	ls : the character and attributes used for the left side.
52  *	rs : right side.
53  *	ts : top side.
54  *	bs : bottom side.
55  */
56 
57 #define	_LEFTSIDE	variables[0]
58 #define	_RIGHTSIDE	variables[1]
59 #define	_TOPSIDE	variables[2]
60 #define	_BOTTOMSIDE	variables[3]
61 #define	_TOPLEFT	variables[4]
62 #define	_TOPRIGHT	variables[5]
63 #define	_BOTTOMLEFT	variables[6]
64 #define	_BOTTOMRIGHT	variables[7]
65 
66 static	char	acs_values[] = {
67 		    'x', /* ACS_VLINE */
68 		    'x', /* ACS_VLINE */
69 		    'q', /* ACS_HLINE */
70 		    'q', /* ACS_HLINE */
71 		    'l', /* ACS_ULCORNER */
72 		    'k', /* ACS_URCORNER */
73 		    'm', /* ACS_LLCORNER */
74 		    'j' /* ACS_LRCORNER */
75 		};
76 
77 int
wborder(WINDOW * win,chtype ls,chtype rs,chtype ts,chtype bs,chtype tl,chtype tr,chtype bl,chtype br)78 wborder(WINDOW *win, chtype ls, chtype rs, chtype ts,
79 	chtype bs, chtype tl, chtype tr, chtype bl, chtype br)
80 {
81 	int	i, endy = win->_maxy - 1, endx = win->_maxx - 2;
82 	chtype	**_y = win->_y;	/* register version */
83 	chtype	*line_ptr, variables[8];
84 	int	x, sx, xend;
85 	chtype	wc;
86 
87 	_LEFTSIDE = ls;
88 	_RIGHTSIDE = rs;
89 	_TOPSIDE = ts;
90 	_BOTTOMSIDE = bs;
91 	_TOPLEFT = tl;
92 	_TOPRIGHT = tr;
93 	_BOTTOMLEFT = bl;
94 	_BOTTOMRIGHT = br;
95 
96 	for (i = 0; i < 8; i++) {
97 		if (_CHAR(variables[i]) == 0 ||
98 		    variables[i] & 0xFF00)
99 			variables[i] = acs_map[acs_values[i]];
100 		if (ISCBIT(variables[i]))
101 			variables[i] = _CHAR((RBYTE(variables[i])<<8) | \
102 			(LBYTE(variables[i])|MBIT)) | CBIT;
103 		variables[i] &= ~CBIT;
104 		variables[i] = _WCHAR(win, variables[i]) | _ATTR(variables[i]);
105 	}
106 
107 	/* do top and bottom edges and corners */
108 	xend = win->_maxx-1;
109 	x = 0;
110 	for (; x <= xend; ++x)
111 		if (!ISCBIT(_y[0][x]))
112 			break;
113 	for (; xend >= x; --xend)
114 		if (!ISCBIT(_y[0][endx])) {
115 			int	m;
116 			wc = RBYTE(_y[0][xend]);
117 			if ((m = xend + _curs_scrwidth[TYPE(wc)]) > win->_maxx)
118 				xend -= 1;
119 			else
120 				xend = m - 1;
121 			endx = xend - 1;
122 			break;
123 		}
124 	sx = x == 0 ? 1 : x;
125 	memSset((line_ptr = &_y[0][sx]), _TOPSIDE, endx);
126 	if (x == 0)
127 		*(--line_ptr) = _TOPLEFT;
128 	if (endx == win->_maxx-2)
129 		line_ptr[++endx] = _TOPRIGHT;
130 
131 	xend = win->_maxx-1;
132 	x = 0;
133 	for (; x <= xend; ++x)
134 		if (!ISCBIT(_y[endy][x]))
135 			break;
136 	for (; xend >= x; --xend)
137 		if (!ISCBIT(_y[endy][xend])) {
138 			int	m;
139 			wc = RBYTE(_y[endy][xend]);
140 			if ((m = xend + _curs_scrwidth[TYPE(wc)]) > win->_maxx)
141 				xend -= 1;
142 			else
143 				xend = m - 1;
144 			endx = xend - 1;
145 			break;
146 		}
147 	sx = x == 0 ? 1 : x;
148 
149 	memSset((line_ptr = &_y[endy][sx]), _BOTTOMSIDE, endx);
150 	if (x == 0)
151 		*--line_ptr = _BOTTOMLEFT;
152 	if (endx == win->_maxx-2)
153 		line_ptr[++endx] = _BOTTOMRIGHT;
154 
155 #ifdef	_VR3_COMPAT_CODE
156 	if (_y16update) {
157 		(*_y16update)(win, 1, ++endx, 0, 0);
158 		(*_y16update)(win, 1, endx--, endy, 0);
159 	}
160 #endif	/* _VR3_COMPAT_CODE */
161 
162 	/* left and right edges */
163 	while (--endy > 0) {
164 		wc = _y[endy][0];
165 		if (!ISCBIT(wc) && _curs_scrwidth[TYPE(RBYTE(wc))] == 1)
166 			_y[endy][0] = _LEFTSIDE;
167 		wc = _y[endy][endx];
168 		if (!ISCBIT(wc) && _curs_scrwidth[TYPE(RBYTE(wc))] == 1)
169 			_y[endy][endx] = _RIGHTSIDE;
170 
171 #ifdef	_VR3_COMPAT_CODE
172 		if (_y16update) {
173 			/* LINTED */
174 			win->_y16[endy][0] =  _TO_OCHTYPE(_LEFTSIDE);
175 			/* LINTED */
176 			win->_y16[endy][endx] = _TO_OCHTYPE(_RIGHTSIDE);
177 		}
178 #endif	/* _VR3_COMPAT_CODE */
179 	}
180 	return (wtouchln((win), 0, (win)->_maxy, TRUE));
181 }
182