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 /*LINTLIBRARY*/
41
42 #include <sys/types.h>
43 #include <stdlib.h>
44 #include "curses_inc.h"
45
46 /* This routine clears up to the end of line. */
47
48 int
wclrtoeol(WINDOW * win)49 wclrtoeol(WINDOW *win)
50 {
51 int y = win->_cury;
52 int x = win->_curx;
53 int maxx = win->_maxx;
54 int cx;
55 chtype wc;
56
57 if (win != curscr) {
58 win->_nbyte = -1;
59 if (_scrmax > 1) {
60 if (ISMBIT(win->_y[y][x])) {
61 win->_insmode = TRUE;
62 if (_mbvalid(win) == ERR)
63 return (ERR);
64 x = win->_curx;
65 }
66 if (ISMBIT(win->_y[y][maxx - 1])) {
67 for (cx = maxx - 1; cx >= x; --cx)
68 if (!ISCBIT(win->_y[y][cx]))
69 break;
70 wc = RBYTE(win->_y[y][cx]);
71 if (cx + _curs_scrwidth[TYPE(wc)] > maxx)
72 maxx = cx - 1;
73 }
74 }
75 }
76
77 memSset(&win->_y[y][x], win->_bkgd, maxx - x);
78 maxx = win->_maxx;
79
80 #ifdef _VR3_COMPAT_CODE
81 if (_y16update)
82 (*_y16update)(win, 1, maxx - x, y, x);
83 #endif /* _VR3_COMPAT_CODE */
84
85 /* if curscr, reset blank structure */
86 if (win == curscr) {
87 if (_BEGNS[y] >= x)
88 /* LINTED */
89 _BEGNS[y] = (short) maxx;
90 if (_ENDNS[y] >= x)
91 _ENDNS[y] = _BEGNS[y] > x ? -1 : x-1;
92
93 _CURHASH[y] = x == 0 ? 0 : _NOHASH;
94
95 if (_MARKS != NULL) {
96 char *mkp = _MARKS[y];
97 int endx = COLS /
98 BITSPERBYTE + (COLS %BITSPERBYTE ? 1 : 0);
99 int m = x / BITSPERBYTE + 1;
100
101 for (; m < endx; ++m)
102 mkp[m] = 0;
103 mkp += x / BITSPERBYTE;
104 if ((m = x % BITSPERBYTE) == 0)
105 *mkp = 0;
106 else
107 for (; m < BITSPERBYTE; ++m)
108 *mkp &= ~(1 << m);
109
110 /* if color terminal, do the same for color marks */
111
112 if (_COLOR_MARKS != NULL) {
113 mkp = _COLOR_MARKS[y];
114
115 m = x / BITSPERBYTE + 1;
116 for (; m < endx; ++m)
117 mkp[m] = 0;
118 mkp += x / BITSPERBYTE;
119 if ((m = x % BITSPERBYTE) == 0)
120 *mkp = 0;
121 else
122 for (; m < BITSPERBYTE; ++m)
123 *mkp &= ~(1 << m);
124 }
125 }
126 return (OK);
127 } else {
128 /* update firstch and lastch for the line. */
129 #ifdef DEBUG
130 if (outf)
131 fprintf(outf, "CLRTOEOL: line %d begx = %d, maxx = %d, "
132 "lastch = %d, next firstch %d\n", y, win->_begx,
133 win->_firstch[y], win->_lastch[y], win->_firstch[y+1]);
134 #endif /* DEBUG */
135
136 if (win->_firstch[y] > x)
137 /* LINTED */
138 win->_firstch[y] = (short) x;
139 win->_lastch[y] = maxx - 1;
140 win->_flags |= _WINCHANGED;
141 /* sync with ancestors structures */
142 if (win->_sync)
143 wsyncup(win);
144
145 return (win->_immed ? wrefresh(win) : OK);
146 }
147 }
148