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) 1995, by Sun Microsystems, Inc. 24 * All rights reserved. 25 */ 26 27 #pragma ident "%Z%%M% %I% %E% SMI" 28 29 /* 30 * wdelch.c 31 * 32 * XCurses Library 33 * 34 * Copyright 1990, 1995 by Mortice Kern Systems Inc. All rights reserved. 35 * 36 */ 37 38 #ifdef M_RCSID 39 #ifndef lint 40 static char rcsID[] = "$Header: /rd/src/libc/xcurses/rcs/wdelch.c 1.3 1995/06/21 20:30:59 ant Exp $"; 41 #endif 42 #endif 43 44 #include <private.h> 45 46 /*f 47 * Delete the character under the cursor; all characters to the right of 48 * the cursor on the same line are moved to the left by one position and 49 * the last character on the line is filled with a blank. The cursor 50 * position does not change. 51 */ 52 int 53 wdelch(w) 54 WINDOW *w; 55 { 56 extern void *memcpy(); /* quiet sparcv9 warning */ 57 int next, width, y, x; 58 59 #ifdef M_CURSES_TRACE 60 __m_trace("wdelch(%p) at (%d,%d)", w, w->_cury, w->_curx); 61 #endif 62 63 y = w->_cury; 64 x = w->_curx; 65 66 next = __m_cc_next(w, y, x); 67 x = __m_cc_first(w, y, x); 68 69 /* Determine the character width to delete. */ 70 width = __m_cc_width(&w->_line[y][x]); 71 72 /* Shift line left to erase the character under the cursor. */ 73 (void) memcpy( 74 &w->_line[y][x], &w->_line[y][next], 75 (w->_maxx - next) * sizeof **w->_line 76 ); 77 78 /* Add blank(s) to the end of line based on the width 79 * of the character that was deleted. 80 */ 81 (void) __m_cc_erase(w, y, w->_maxx - width, y, w->_maxx - 1); 82 83 /* Set dity region markers. */ 84 if (x < w->_first[y]) 85 w->_first[y] = x; 86 w->_last[y] = w->_maxx; 87 88 WSYNC(w); 89 90 return __m_return_code("wdelch", WFLUSH(w)); 91 } 92