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 (c) 1988 by Sun Microsystems, Inc. 24 */ 25 26 /*LINTLIBRARY*/ 27 28 #include <sys/types.h> 29 #include "curses_inc.h" 30 31 int wmoveprevch(WINDOW * win)32wmoveprevch(WINDOW *win) 33 /* 34 * wmoveprevch --- moves the cursor back to the previous char of char 35 * cursor is currently on. This is used to move back over a multi-column 36 * character. When the cursor is on a character at the left-most 37 * column, the cursor will stay there. 38 */ 39 { 40 chtype *_yy; 41 short x; 42 43 (void) wadjcurspos(win); 44 x = win->_curx; 45 if (x == 0) /* Can't back up any more. */ 46 return (ERR); 47 _yy = win->_y[win->_cury]; 48 --x; 49 while ((x > 0) && (ISCBIT(_yy[x]))) 50 --x; 51 win->_curx = x; 52 win->_flags |= _WINMOVED; 53 return (win->_immed ? wrefresh(win): OK); 54 } 55