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 /*
23*0Sstevel@tonic-gate * Copyright 1997 Sun Microsystems, Inc. All rights reserved.
24*0Sstevel@tonic-gate * Use is subject to license terms.
25*0Sstevel@tonic-gate */
26*0Sstevel@tonic-gate
27*0Sstevel@tonic-gate /* Copyright (c) 1988 AT&T */
28*0Sstevel@tonic-gate /* All Rights Reserved */
29*0Sstevel@tonic-gate
30*0Sstevel@tonic-gate /*
31*0Sstevel@tonic-gate * University Copyright- Copyright (c) 1982, 1986, 1988
32*0Sstevel@tonic-gate * The Regents of the University of California
33*0Sstevel@tonic-gate * All Rights Reserved
34*0Sstevel@tonic-gate *
35*0Sstevel@tonic-gate * University Acknowledgment- Portions of this document are derived from
36*0Sstevel@tonic-gate * software developed by the University of California, Berkeley, and its
37*0Sstevel@tonic-gate * contributors.
38*0Sstevel@tonic-gate */
39*0Sstevel@tonic-gate
40*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI"
41*0Sstevel@tonic-gate
42*0Sstevel@tonic-gate /*LINTLIBRARY*/
43*0Sstevel@tonic-gate
44*0Sstevel@tonic-gate #include <sys/types.h>
45*0Sstevel@tonic-gate #include "curses_inc.h"
46*0Sstevel@tonic-gate
47*0Sstevel@tonic-gate /* Change the background of a window. nbkgd : new background. */
48*0Sstevel@tonic-gate
49*0Sstevel@tonic-gate int
wbkgd(WINDOW * win,chtype nbkgd)50*0Sstevel@tonic-gate wbkgd(WINDOW *win, chtype nbkgd)
51*0Sstevel@tonic-gate {
52*0Sstevel@tonic-gate short maxx;
53*0Sstevel@tonic-gate int x, y;
54*0Sstevel@tonic-gate chtype *wcp, obkgda, obkgdc, nbkgda,
55*0Sstevel@tonic-gate nbkgdc, acolor, c;
56*0Sstevel@tonic-gate short *begch, *endch;
57*0Sstevel@tonic-gate
58*0Sstevel@tonic-gate /* if 'nbkgd' contains color information, but this is not a color */
59*0Sstevel@tonic-gate /* terminal, erase that information. */
60*0Sstevel@tonic-gate
61*0Sstevel@tonic-gate if ((nbkgd & A_COLOR) && (cur_term->_pairs_tbl == NULL))
62*0Sstevel@tonic-gate nbkgd &= ~A_COLOR;
63*0Sstevel@tonic-gate
64*0Sstevel@tonic-gate if (nbkgd == win->_bkgd)
65*0Sstevel@tonic-gate return (OK);
66*0Sstevel@tonic-gate
67*0Sstevel@tonic-gate obkgdc = _CHAR(win->_bkgd);
68*0Sstevel@tonic-gate obkgda = _ATTR(win->_bkgd);
69*0Sstevel@tonic-gate
70*0Sstevel@tonic-gate nbkgdc = _CHAR(nbkgd);
71*0Sstevel@tonic-gate nbkgda = _ATTR(nbkgd);
72*0Sstevel@tonic-gate
73*0Sstevel@tonic-gate /* switch byte order if necessary */
74*0Sstevel@tonic-gate if (ISCBIT(nbkgdc))
75*0Sstevel@tonic-gate nbkgdc = _CHAR((RBYTE(nbkgdc) << 8) | (LBYTE(nbkgdc)|MBIT)) |
76*0Sstevel@tonic-gate CBIT;
77*0Sstevel@tonic-gate c = RBYTE(nbkgdc);
78*0Sstevel@tonic-gate if ((nbkgdc < ' ' || nbkgdc == _CTRL('?')) ||
79*0Sstevel@tonic-gate _curs_scrwidth[TYPE(c)] > 1)
80*0Sstevel@tonic-gate nbkgdc = obkgdc;
81*0Sstevel@tonic-gate nbkgd = (nbkgdc & ~CBIT) | nbkgda;
82*0Sstevel@tonic-gate
83*0Sstevel@tonic-gate win->_bkgd = nbkgd;
84*0Sstevel@tonic-gate
85*0Sstevel@tonic-gate /* delete the old background from the attribute field and replace */
86*0Sstevel@tonic-gate /* it with the new background. Note: if the same attribute was */
87*0Sstevel@tonic-gate /* first set by wbkgd() and then by wattron(), or vice versa, it */
88*0Sstevel@tonic-gate /* will be deleted, so the effect of wattron() will be lost. */
89*0Sstevel@tonic-gate /* This applies to both video and color attributes. */
90*0Sstevel@tonic-gate
91*0Sstevel@tonic-gate if ((acolor = (win->_attrs & A_COLOR)) != 0) {
92*0Sstevel@tonic-gate if (acolor == (obkgda & A_COLOR)) {
93*0Sstevel@tonic-gate win->_attrs = _ATTR((win->_attrs & ~obkgda) | nbkgda);
94*0Sstevel@tonic-gate } else {
95*0Sstevel@tonic-gate win->_attrs = _ATTR((win->_attrs &
96*0Sstevel@tonic-gate (~obkgda | A_COLOR)) | (nbkgda & ~A_COLOR));
97*0Sstevel@tonic-gate }
98*0Sstevel@tonic-gate } else
99*0Sstevel@tonic-gate win->_attrs = _ATTR((win->_attrs & ~obkgda) | nbkgda);
100*0Sstevel@tonic-gate
101*0Sstevel@tonic-gate maxx = win->_maxx - 1;
102*0Sstevel@tonic-gate begch = win->_firstch;
103*0Sstevel@tonic-gate endch = win->_lastch;
104*0Sstevel@tonic-gate for (y = win->_maxy-1; y >= 0; --y, ++begch, ++endch) {
105*0Sstevel@tonic-gate for (x = maxx, wcp = win->_y[y]; x-- >= 0; ++wcp) {
106*0Sstevel@tonic-gate if ((c = _CHAR(*wcp)) == obkgdc)
107*0Sstevel@tonic-gate c = nbkgdc;
108*0Sstevel@tonic-gate if ((acolor = (*wcp & A_COLOR)) != 0) {
109*0Sstevel@tonic-gate if (acolor == (obkgda & A_COLOR))
110*0Sstevel@tonic-gate *wcp = c | _ATTR((*wcp & ~obkgda) |
111*0Sstevel@tonic-gate nbkgda);
112*0Sstevel@tonic-gate else
113*0Sstevel@tonic-gate *wcp = c | _ATTR((*wcp & (~obkgda |
114*0Sstevel@tonic-gate A_COLOR)) | (nbkgda & ~A_COLOR));
115*0Sstevel@tonic-gate } else
116*0Sstevel@tonic-gate *wcp = c | _ATTR((*wcp & ~obkgda) | nbkgda);
117*0Sstevel@tonic-gate }
118*0Sstevel@tonic-gate *begch = 0;
119*0Sstevel@tonic-gate *endch = maxx;
120*0Sstevel@tonic-gate }
121*0Sstevel@tonic-gate
122*0Sstevel@tonic-gate win->_flags |= _WINCHANGED;
123*0Sstevel@tonic-gate if (win->_sync)
124*0Sstevel@tonic-gate wsyncup(win);
125*0Sstevel@tonic-gate
126*0Sstevel@tonic-gate return (win->_immed ? wrefresh(win) : OK);
127*0Sstevel@tonic-gate }
128