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 "curses_inc.h"
46
47 extern int outchcount;
48
49 /*
50 * These routines short-circuit much of the innards of curses in order to get
51 * a single character output to the screen quickly! It is used by waddch().
52 */
53
54 int
_quick_echo(WINDOW * win,chtype ch)55 _quick_echo(WINDOW *win, chtype ch)
56 {
57 short y = win->_cury;
58 short SPy = y + win->_begy + win->_yoffset;
59 short SPx = (win->_curx - 1) + win->_begx;
60 chtype rawc = _CHAR(ch), rawattrs = _ATTR(ch);
61
62 if ((curscr->_flags & _CANT_BE_IMMED) ||
63 (win->_flags & _WINCHANGED) ||
64 (win->_clear) || (curscr->_clear) ||
65 (_virtscr->_flags & _WINCHANGED) ||
66 (SPy > ((LINES + SP->Yabove) - 1)) || (SPx > (COLS - 1)) ||
67 (SP->slk && (SP->slk->_changed == TRUE))) {
68 win->_flags |= _WINCHANGED;
69 return (wrefresh(win));
70 }
71
72 outchcount = 0;
73 win->_firstch[y] = _INFINITY;
74 win->_lastch[y] = -1;
75 /* If the cursor is not in the right place, put it there! */
76 if ((SPy != curscr->_cury) || (SPx != curscr->_curx)) {
77 (void) mvcur(curscr->_cury, curscr->_curx, SPy, SPx);
78 curscr->_cury = SPy;
79 }
80 curscr->_curx = SPx + 1;
81 _CURHASH[SPy] = _NOHASH;
82 if (ch != ' ') {
83 if (SPx > _ENDNS[SPy])
84 _ENDNS[SPy] = SPx;
85 if (SPx < _BEGNS[SPy])
86 _BEGNS[SPy] = SPx;
87 }
88 _virtscr->_y[SPy][SPx] = curscr->_y[SPy][SPx] = ch;
89
90 if (rawattrs != curscr->_attrs)
91 _VIDS(rawattrs, curscr->_attrs);
92
93 if (SP->phys_irm)
94 _OFFINSERT();
95
96 /* Write it out! */
97 /* LINTED */
98 (void) _outch((char) rawc);
99 (void) fflush(SP->term_file);
100
101 return (outchcount);
102 }
103