1*7c478bd9Sstevel@tonic-gate /*
2*7c478bd9Sstevel@tonic-gate * CDDL HEADER START
3*7c478bd9Sstevel@tonic-gate *
4*7c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the
5*7c478bd9Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only
6*7c478bd9Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance
7*7c478bd9Sstevel@tonic-gate * with the License.
8*7c478bd9Sstevel@tonic-gate *
9*7c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*7c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing.
11*7c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions
12*7c478bd9Sstevel@tonic-gate * and limitations under the License.
13*7c478bd9Sstevel@tonic-gate *
14*7c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each
15*7c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*7c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the
17*7c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying
18*7c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner]
19*7c478bd9Sstevel@tonic-gate *
20*7c478bd9Sstevel@tonic-gate * CDDL HEADER END
21*7c478bd9Sstevel@tonic-gate */
22*7c478bd9Sstevel@tonic-gate /*
23*7c478bd9Sstevel@tonic-gate * Copyright (c) 1995-1998 by Sun Microsystems, Inc.
24*7c478bd9Sstevel@tonic-gate * All rights reserved.
25*7c478bd9Sstevel@tonic-gate */
26*7c478bd9Sstevel@tonic-gate
27*7c478bd9Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI"
28*7c478bd9Sstevel@tonic-gate
29*7c478bd9Sstevel@tonic-gate /* LINTLIBRARY */
30*7c478bd9Sstevel@tonic-gate
31*7c478bd9Sstevel@tonic-gate /*
32*7c478bd9Sstevel@tonic-gate * wdelch.c
33*7c478bd9Sstevel@tonic-gate *
34*7c478bd9Sstevel@tonic-gate * XCurses Library
35*7c478bd9Sstevel@tonic-gate *
36*7c478bd9Sstevel@tonic-gate * Copyright 1990, 1995 by Mortice Kern Systems Inc. All rights reserved.
37*7c478bd9Sstevel@tonic-gate *
38*7c478bd9Sstevel@tonic-gate */
39*7c478bd9Sstevel@tonic-gate
40*7c478bd9Sstevel@tonic-gate #ifdef M_RCSID
41*7c478bd9Sstevel@tonic-gate #ifndef lint
42*7c478bd9Sstevel@tonic-gate static char rcsID[] =
43*7c478bd9Sstevel@tonic-gate "$Header: /team/ps/sun_xcurses/archive/local_changes/xcurses/src/lib/"
44*7c478bd9Sstevel@tonic-gate "libxcurses/src/libc/xcurses/rcs/wdelch.c 1.3 1998/05/26 14:22:13 "
45*7c478bd9Sstevel@tonic-gate "cbates Exp $";
46*7c478bd9Sstevel@tonic-gate #endif
47*7c478bd9Sstevel@tonic-gate #endif
48*7c478bd9Sstevel@tonic-gate
49*7c478bd9Sstevel@tonic-gate #include <private.h>
50*7c478bd9Sstevel@tonic-gate #include <string.h>
51*7c478bd9Sstevel@tonic-gate
52*7c478bd9Sstevel@tonic-gate /*
53*7c478bd9Sstevel@tonic-gate * Delete the character under the cursor; all characters to the right of
54*7c478bd9Sstevel@tonic-gate * the cursor on the same line are moved to the left by one position and
55*7c478bd9Sstevel@tonic-gate * the last character on the line is filled with a blank. The cursor
56*7c478bd9Sstevel@tonic-gate * position does not change.
57*7c478bd9Sstevel@tonic-gate */
58*7c478bd9Sstevel@tonic-gate int
wdelch(WINDOW * w)59*7c478bd9Sstevel@tonic-gate wdelch(WINDOW *w)
60*7c478bd9Sstevel@tonic-gate {
61*7c478bd9Sstevel@tonic-gate int next, width, y, x;
62*7c478bd9Sstevel@tonic-gate
63*7c478bd9Sstevel@tonic-gate y = w->_cury;
64*7c478bd9Sstevel@tonic-gate x = w->_curx;
65*7c478bd9Sstevel@tonic-gate
66*7c478bd9Sstevel@tonic-gate next = __m_cc_next(w, y, x);
67*7c478bd9Sstevel@tonic-gate x = __m_cc_first(w, y, x);
68*7c478bd9Sstevel@tonic-gate
69*7c478bd9Sstevel@tonic-gate /* Determine the character width to delete. */
70*7c478bd9Sstevel@tonic-gate width = __m_cc_width(&w->_line[y][x]);
71*7c478bd9Sstevel@tonic-gate
72*7c478bd9Sstevel@tonic-gate /* Shift line left to erase the character under the cursor. */
73*7c478bd9Sstevel@tonic-gate (void) memcpy(&w->_line[y][x], &w->_line[y][next],
74*7c478bd9Sstevel@tonic-gate (w->_maxx - next) * sizeof (**w->_line));
75*7c478bd9Sstevel@tonic-gate
76*7c478bd9Sstevel@tonic-gate /*
77*7c478bd9Sstevel@tonic-gate * Add blank(s) to the end of line based on the width
78*7c478bd9Sstevel@tonic-gate * of the character that was deleted.
79*7c478bd9Sstevel@tonic-gate */
80*7c478bd9Sstevel@tonic-gate (void) __m_cc_erase(w, y, w->_maxx - width, y, w->_maxx - 1);
81*7c478bd9Sstevel@tonic-gate
82*7c478bd9Sstevel@tonic-gate /* Set dity region markers. */
83*7c478bd9Sstevel@tonic-gate if (x < w->_first[y])
84*7c478bd9Sstevel@tonic-gate w->_first[y] = (short) x;
85*7c478bd9Sstevel@tonic-gate w->_last[y] = w->_maxx;
86*7c478bd9Sstevel@tonic-gate
87*7c478bd9Sstevel@tonic-gate WSYNC(w);
88*7c478bd9Sstevel@tonic-gate
89*7c478bd9Sstevel@tonic-gate return (WFLUSH(w));
90*7c478bd9Sstevel@tonic-gate }
91