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 #pragma ident "%Z%%M% %I% %E% SMI" 28 29 /* LINTLIBRARY */ 30 31 /* 32 * dupwin.c 33 * 34 * XCurses Library 35 * 36 * Copyright 1990, 1995 by Mortice Kern Systems Inc. All rights reserved. 37 * 38 */ 39 40 #ifdef M_RCSID 41 #ifndef lint 42 static char rcsID[] = "$Header: /rd/src/libc/xcurses/rcs/dupwin.c 1.1 " 43 "1995/05/26 18:41:41 ant Exp $"; 44 #endif 45 #endif 46 47 #include <private.h> 48 #include <stdlib.h> 49 #include <string.h> 50 51 /* 52 * Make an exact duplicate of the window. 53 */ 54 WINDOW * 55 dupwin(WINDOW *w) 56 { 57 int i; 58 WINDOW *v; 59 60 /* Create (sub)window with same dimensions. */ 61 v = __m_newwin(w->_parent, w->_maxy, w->_maxx, w->_begy, w->_begx); 62 if (v == NULL) 63 return (NULL); 64 65 /* Same software scroll region. */ 66 v->_top = w->_top; 67 v->_bottom = w->_bottom; 68 69 /* Same window input settings. */ 70 v->_vmin = w->_vmin; 71 v->_vtime = w->_vtime; 72 73 /* Same window flags. */ 74 v->_flags = w->_flags; 75 76 /* Copy dirty region markers. */ 77 (void) memcpy(v->_first, w->_first, 78 (v->_maxy + v->_maxy) * sizeof (*v->_first)); 79 80 if (v->_parent == NULL) { 81 /* 82 * For a regular window, copy source window lines in the 83 * correct order, because the pointers in _line[] may have 84 * been shuffled. A subwindow is not subject to this, 85 * because it shares its data with its parent window. 86 */ 87 for (i = 0; i < w->_maxy; ++i) { 88 (void) memcpy(v->_line[i], w->_line[i], 89 v->_maxx * sizeof (**v->_line)); 90 } 91 } 92 93 return (v); 94 } 95