1 /* 2 * Copyright (c) 1981 Regents of the University of California. 3 * 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. 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. 32 */ 33 34 #ifndef lint 35 /*static char sccsid[] = "from: @(#)scroll.c 5.4 (Berkeley) 6/1/90";*/ 36 static char rcsid[] = "$Id: scroll.c,v 1.2 1993/08/01 18:35:24 mycroft Exp $"; 37 #endif /* not lint */ 38 39 # include "curses.ext" 40 41 /* 42 * This routine scrolls the window up a line. 43 * 44 */ 45 scroll(win) 46 register WINDOW *win; 47 { 48 register int oy, ox; 49 50 # ifdef DEBUG 51 fprintf(outf, "SCROLL(%0.2o)\n", win); 52 # endif 53 54 if (!win->_scroll) 55 return ERR; 56 57 getyx(win, oy, ox); 58 wmove(win, 0, 0); 59 wdeleteln(win); 60 wmove(win, oy, ox); 61 62 if (win == curscr) { 63 _putchar('\n'); 64 if (!NONL) 65 win->_curx = 0; 66 # ifdef DEBUG 67 fprintf(outf, "SCROLL: win == curscr\n"); 68 # endif 69 } 70 } 71