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) 1995-1998 by Sun Microsystems, Inc. 24 * All rights reserved. 25 */ 26 27 /* LINTLIBRARY */ 28 29 /* 30 * dupwin.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/dupwin.c 1.1 " 41 "1995/05/26 18:41:41 ant Exp $"; 42 #endif 43 #endif 44 45 #include <private.h> 46 #include <stdlib.h> 47 #include <string.h> 48 49 /* 50 * Make an exact duplicate of the window. 51 */ 52 WINDOW * 53 dupwin(WINDOW *w) 54 { 55 int i; 56 WINDOW *v; 57 58 /* Create (sub)window with same dimensions. */ 59 v = __m_newwin(w->_parent, w->_maxy, w->_maxx, w->_begy, w->_begx); 60 if (v == NULL) 61 return (NULL); 62 63 /* Same software scroll region. */ 64 v->_top = w->_top; 65 v->_bottom = w->_bottom; 66 67 /* Same window input settings. */ 68 v->_vmin = w->_vmin; 69 v->_vtime = w->_vtime; 70 71 /* Same window flags. */ 72 v->_flags = w->_flags; 73 74 /* Copy dirty region markers. */ 75 (void) memcpy(v->_first, w->_first, 76 (v->_maxy + v->_maxy) * sizeof (*v->_first)); 77 78 if (v->_parent == NULL) { 79 /* 80 * For a regular window, copy source window lines in the 81 * correct order, because the pointers in _line[] may have 82 * been shuffled. A subwindow is not subject to this, 83 * because it shares its data with its parent window. 84 */ 85 for (i = 0; i < w->_maxy; ++i) { 86 (void) memcpy(v->_line[i], w->_line[i], 87 v->_maxx * sizeof (**v->_line)); 88 } 89 } 90 91 return (v); 92 } 93