1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright 1997 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 /* Copyright (c) 1988 AT&T */ 28 /* All Rights Reserved */ 29 30 /* 31 * University Copyright- Copyright (c) 1982, 1986, 1988 32 * The Regents of the University of California 33 * All Rights Reserved 34 * 35 * University Acknowledgment- Portions of this document are derived from 36 * software developed by the University of California, Berkeley, and its 37 * contributors. 38 */ 39 40 /*LINTLIBRARY*/ 41 42 #include <sys/types.h> 43 #include "curses_inc.h" 44 45 /* 46 * Make a number of lines look like they have/have not been changed. 47 * y: the start line 48 * n: the number of lines affected 49 * changed: 1: changed 50 * 0: not changed 51 * -1: changed. Called internally - In this mode 52 * even REDRAW lines are changed. 53 */ 54 55 int 56 wtouchln(WINDOW *win, int y, int n, int changed) 57 { 58 short *firstch, *lastch, b, e; 59 int maxy = win->_maxy; 60 61 if (y >= maxy) 62 return (ERR); 63 if (y < 0) 64 y = 0; 65 if ((y + n) > maxy) 66 n = maxy - y; 67 firstch = win->_firstch + y; 68 lastch = win->_lastch + y; 69 if (changed) { 70 win->_flags |= _WINCHANGED; 71 b = 0; 72 e = win->_maxx - 1; 73 } else { 74 b = _INFINITY; 75 e = -1; 76 win->_flags &= ~_WINCHANGED; 77 } 78 79 for (; n-- > 0; firstch++, lastch++) { 80 if (changed == -1 || *firstch != _REDRAW) 81 *firstch = b, *lastch = e; 82 } 83 84 if ((changed == 1) && win->_sync) 85 wsyncup(win); 86 87 return (((changed == 1) && win->_immed) ? wrefresh(win) : OK); 88 } 89