scroll.c revision 1.3
1 1.1 cgd /* 2 1.1 cgd * Copyright (c) 1981 Regents of the University of California. 3 1.1 cgd * All rights reserved. 4 1.1 cgd * 5 1.1 cgd * Redistribution and use in source and binary forms, with or without 6 1.1 cgd * modification, are permitted provided that the following conditions 7 1.1 cgd * are met: 8 1.1 cgd * 1. Redistributions of source code must retain the above copyright 9 1.1 cgd * notice, this list of conditions and the following disclaimer. 10 1.1 cgd * 2. Redistributions in binary form must reproduce the above copyright 11 1.1 cgd * notice, this list of conditions and the following disclaimer in the 12 1.1 cgd * documentation and/or other materials provided with the distribution. 13 1.1 cgd * 3. All advertising materials mentioning features or use of this software 14 1.1 cgd * must display the following acknowledgement: 15 1.1 cgd * This product includes software developed by the University of 16 1.1 cgd * California, Berkeley and its contributors. 17 1.1 cgd * 4. Neither the name of the University nor the names of its contributors 18 1.1 cgd * may be used to endorse or promote products derived from this software 19 1.1 cgd * without specific prior written permission. 20 1.1 cgd * 21 1.1 cgd * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 1.1 cgd * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 1.1 cgd * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 1.1 cgd * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 1.1 cgd * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 1.1 cgd * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 1.1 cgd * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 1.1 cgd * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 1.1 cgd * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 1.1 cgd * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 1.1 cgd * SUCH DAMAGE. 32 1.1 cgd */ 33 1.1 cgd 34 1.1 cgd #ifndef lint 35 1.3 mycroft /*static char sccsid[] = "from: @(#)scroll.c 5.6 (Berkeley) 8/31/92";*/ 36 1.2 mycroft static char rcsid[] = "$Id: scroll.c,v 1.3 1993/08/07 05:49:06 mycroft Exp $"; 37 1.1 cgd #endif /* not lint */ 38 1.1 cgd 39 1.3 mycroft #include <curses.h> 40 1.3 mycroft #include <termios.h> 41 1.1 cgd 42 1.1 cgd /* 43 1.3 mycroft * scroll -- 44 1.3 mycroft * Scroll the window up a line. 45 1.1 cgd */ 46 1.3 mycroft int 47 1.1 cgd scroll(win) 48 1.3 mycroft register WINDOW *win; 49 1.1 cgd { 50 1.3 mycroft register int oy, ox; 51 1.1 cgd 52 1.3 mycroft #ifdef DEBUG 53 1.3 mycroft __TRACE("scroll: (%0.2o)\n", win); 54 1.3 mycroft #endif 55 1.1 cgd 56 1.1 cgd if (!win->_scroll) 57 1.3 mycroft return (ERR); 58 1.1 cgd 59 1.1 cgd getyx(win, oy, ox); 60 1.1 cgd wmove(win, 0, 0); 61 1.1 cgd wdeleteln(win); 62 1.1 cgd wmove(win, oy, ox); 63 1.1 cgd 64 1.1 cgd if (win == curscr) { 65 1.3 mycroft putchar('\n'); 66 1.3 mycroft if (origtermio.c_oflag & ONLCR) 67 1.1 cgd win->_curx = 0; 68 1.3 mycroft #ifdef DEBUG 69 1.3 mycroft __TRACE("scroll: win == curscr\n"); 70 1.3 mycroft #endif 71 1.1 cgd } 72 1.3 mycroft return (OK); 73 1.1 cgd } 74
Indexes created Mon Sep 22 05:09:51 GMT 2025