1 /*
2 * Copyright (c) 1981, 1993, 1994
3 * The Regents of the University of California. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. Neither the name of the University nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 */
29
30 #ifndef lint
31 static char sccsid[] = "@(#)deleteln.c 8.2 (Berkeley) 5/4/94";
32 #endif /* not lint */
33
34 #include <string.h>
35
36 #include "curses.h"
37
38 /*
39 * wdeleteln --
40 * Delete a line from the screen. It leaves (cury, curx) unchanged.
41 */
42 int
wdeleteln(win)43 wdeleteln(win)
44 register WINDOW *win;
45 {
46 register int y, i;
47 register __LINE *temp;
48
49 #ifdef DEBUG
50 __CTRACE("deleteln: (%0.2o)\n", win);
51 #endif
52 temp = win->lines[win->cury];
53 for (y = win->cury; y < win->maxy - 1; y++) {
54 win->lines[y]->flags &= ~__ISPASTEOL;
55 win->lines[y + 1]->flags &= ~__ISPASTEOL;
56 if (win->orig == NULL)
57 win->lines[y] = win->lines[y + 1];
58 else
59 (void) memcpy(win->lines[y]->line,
60 win->lines[y + 1]->line,
61 win->maxx * __LDATASIZE);
62 __touchline(win, y, 0, win->maxx - 1, 0);
63 }
64
65 if (win->orig == NULL)
66 win->lines[y] = temp;
67 else
68 temp = win->lines[y];
69
70 for(i = 0; i < win->maxx; i++) {
71 temp->line[i].ch = ' ';
72 temp->line[i].attr = 0;
73 }
74 __touchline(win, y, 0, win->maxx - 1, 0);
75 if (win->orig == NULL)
76 __id_subwins(win);
77 return (OK);
78 }
79