projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| ad787160 C |
1 | /* |
| 2 | * Copyright (c) 1981, 1993 | |
| 3 | * The Regents of the University of California. All rights reserved. | |
| 4 | * | |
| c0567266 KB |
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. All advertising materials mentioning features or use of this software | |
| 14 | * must display the following acknowledgement: | |
| 15 | * This product includes software developed by the University of | |
| 16 | * California, Berkeley and its contributors. | |
| 17 | * 4. Neither the name of the University nor the names of its contributors | |
| 18 | * may be used to endorse or promote products derived from this software | |
| 19 | * without specific prior written permission. | |
| 20 | * | |
| 21 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND | |
| 22 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 23 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
| 24 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | |
| 25 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
| 26 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
| 27 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
| 28 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
| 29 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
| 30 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
| 31 | * SUCH DAMAGE. | |
| ad787160 C |
32 | */ |
| 33 | ||
| 34 | #ifndef lint | |
| 35 | static char sccsid[] = "@(#)scroll.c 8.1 (Berkeley) 6/11/93"; | |
| 36 | #endif /* not lint */ | |
| 37 | ||
| 38 | #include <curses.h> | |
| 39 | #include <termios.h> | |
| 40 | ||
| 41 | /* | |
| 42 | * scroll -- | |
| 43 | * Scroll the window up a line. | |
| 44 | */ | |
| 45 | int | |
| 46 | scroll(win) | |
| 47 | register WINDOW *win; | |
| 48 | { | |
| 49 | register int oy, ox; | |
| 50 | ||
| 51 | #ifdef DEBUG | |
| 52 | __CTRACE("scroll: (%0.2o)\n", win); | |
| 53 | #endif | |
| 54 | ||
| 55 | if (!(win->flags & __SCROLLOK)) | |
| 56 | return (ERR); | |
| 57 | ||
| 58 | getyx(win, oy, ox); | |
| 59 | wmove(win, 0, 0); | |
| 60 | wdeleteln(win); | |
| 61 | wmove(win, oy, ox); | |
| 62 | ||
| 63 | if (win == curscr) { | |
| 64 | putchar('\n'); | |
| 65 | if (!NONL) | |
| 66 | win->curx = 0; | |
| 67 | #ifdef DEBUG | |
| 68 | __CTRACE("scroll: win == curscr\n"); | |
| 69 | #endif | |
| 70 | } | |
| 71 | return (OK); | |
| 72 | } |