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 #pragma ident "%Z%%M% %I% %E% SMI" 41 42 /*LINTLIBRARY*/ 43 44 #include <sys/types.h> 45 #include "curses_inc.h" 46 47 /* 48 * Make a number of lines look like they have/have not been changed. 49 * y: the start line 50 * n: the number of lines affected 51 * changed: 1: changed 52 * 0: not changed 53 * -1: changed. Called internally - In this mode 54 * even REDRAW lines are changed. 55 */ 56 57 int 58 wtouchln(WINDOW *win, int y, int n, int changed) 59 { 60 short *firstch, *lastch, b, e; 61 int maxy = win->_maxy; 62 63 if (y >= maxy) 64 return (ERR); 65 if (y < 0) 66 y = 0; 67 if ((y + n) > maxy) 68 n = maxy - y; 69 firstch = win->_firstch + y; 70 lastch = win->_lastch + y; 71 if (changed) { 72 win->_flags |= _WINCHANGED; 73 b = 0; 74 e = win->_maxx - 1; 75 } else { 76 b = _INFINITY; 77 e = -1; 78 win->_flags &= ~_WINCHANGED; 79 } 80 81 for (; n-- > 0; firstch++, lastch++) { 82 if (changed == -1 || *firstch != _REDRAW) 83 *firstch = b, *lastch = e; 84 } 85 86 if ((changed == 1) && win->_sync) 87 wsyncup(win); 88 89 return (((changed == 1) && win->_immed) ? wrefresh(win) : OK); 90 } 91