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 /*LINTLIBRARY*/ 41 42 #include <sys/types.h> 43 #include "curses_inc.h" 44 45 /* 46 * Move a derived window inside its parent window. 47 * This routine does not change the screen relative 48 * parameters begx and begy. Thus, it can be used to 49 * display different parts of the parent window at 50 * the same screen coordinate. 51 */ 52 53 int 54 mvderwin(WINDOW *win, int pary, int parx) 55 { 56 int y, maxy; 57 WINDOW *par; 58 chtype obkgd, **wc, **pc; 59 short *begch, *endch, maxx; 60 61 if ((par = win->_parent) == NULL) 62 goto bad; 63 if (pary == win->_pary && parx == win->_parx) 64 return (OK); 65 66 maxy = win->_maxy-1; 67 maxx = win->_maxx-1; 68 if ((parx + maxx) >= par->_maxx || (pary + maxy) >= par->_maxy) 69 bad: 70 return (ERR); 71 72 /* save all old changes */ 73 wsyncup(win); 74 75 /* rearrange pointers */ 76 /*LINTED*/ 77 win->_parx = (short) parx; 78 /*LINTED*/ 79 win->_pary = (short) pary; 80 wc = win->_y; 81 pc = par->_y + pary; 82 begch = win->_firstch; 83 endch = win->_lastch; 84 for (y = 0; y <= maxy; ++y, ++wc, ++pc, ++begch, ++endch) { 85 *wc = *pc + parx; 86 *begch = 0; 87 *endch = maxx; 88 } 89 90 /* change background to our own */ 91 obkgd = win->_bkgd; 92 win->_bkgd = par->_bkgd; 93 return (wbkgd(win, obkgd)); 94 } 95