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 * This routine performs a delete-char on the line, 49 * leaving (_cury, _curx) unchanged. 50 */ 51 52 int 53 wdelch(WINDOW *win) 54 { 55 chtype *temp1, *temp2; 56 chtype *end; 57 int cury = win->_cury; 58 short curx = win->_curx; 59 chtype *cp; 60 int s; 61 62 end = &win->_y[cury][win->_maxx - 1]; 63 temp2 = &win->_y[cury][curx + 1]; 64 temp1 = temp2 - 1; 65 66 s = 1; 67 win->_nbyte = -1; 68 if (_scrmax > 1) { 69 if (ISMBIT(*temp1)) { 70 win->_insmode = TRUE; 71 if (_mbvalid(win) == ERR) 72 return (ERR); 73 curx = win->_curx; 74 temp1 = &win->_y[cury][curx]; 75 } 76 if (ISMBIT(*end)) { 77 for (cp = end; cp >= temp1; --cp) 78 if (!ISCBIT(*cp)) 79 break; 80 if (cp + _curs_scrwidth[TYPE(*cp)] > end+1) 81 end = cp - 1; 82 } 83 if (ISMBIT(*temp1)) 84 s = _curs_scrwidth[TYPE(RBYTE(*temp1))]; 85 end -= s - 1; 86 temp2 = &win->_y[cury][curx+s]; 87 } 88 89 while (temp1 < end) 90 *temp1++ = *temp2++; 91 92 while (s--) 93 *temp1++ = win->_bkgd; 94 95 #ifdef _VR3_COMPAT_CODE 96 if (_y16update) 97 (*_y16update)(win, 1, win->_maxx - curx, cury, curx); 98 #endif /* _VR3_COMPAT_CODE */ 99 100 win->_lastch[cury] = win->_maxx - 1; 101 if (win->_firstch[cury] > curx) 102 win->_firstch[cury] = curx; 103 104 win->_flags |= _WINCHANGED; 105 106 if (win->_sync) 107 wsyncup(win); 108 109 return (win->_immed ? wrefresh(win) : OK); 110 } 111