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