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 #pragma ident "%Z%%M% %I% %E% SMI" 27 28 /*LINTLIBRARY*/ 29 30 #include <sys/types.h> 31 #include "curses_inc.h" 32 33 int 34 wmoveprevch(WINDOW *win) 35 /* 36 * wmoveprevch --- moves the cursor back to the previous char of char 37 * cursor is currently on. This is used to move back over a multi-column 38 * character. When the cursor is on a character at the left-most 39 * column, the cursor will stay there. 40 */ 41 { 42 chtype *_yy; 43 short x; 44 45 (void) wadjcurspos(win); 46 x = win->_curx; 47 if (x == 0) /* Can't back up any more. */ 48 return (ERR); 49 _yy = win->_y[win->_cury]; 50 --x; 51 while ((x > 0) && (ISCBIT(_yy[x]))) 52 --x; 53 win->_curx = x; 54 win->_flags |= _WINMOVED; 55 return (win->_immed ? wrefresh(win): OK); 56 } 57