1*7c478bd9Sstevel@tonic-gate /* 2*7c478bd9Sstevel@tonic-gate * CDDL HEADER START 3*7c478bd9Sstevel@tonic-gate * 4*7c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*7c478bd9Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*7c478bd9Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*7c478bd9Sstevel@tonic-gate * with the License. 8*7c478bd9Sstevel@tonic-gate * 9*7c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*7c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*7c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions 12*7c478bd9Sstevel@tonic-gate * and limitations under the License. 13*7c478bd9Sstevel@tonic-gate * 14*7c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*7c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*7c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*7c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*7c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*7c478bd9Sstevel@tonic-gate * 20*7c478bd9Sstevel@tonic-gate * CDDL HEADER END 21*7c478bd9Sstevel@tonic-gate */ 22*7c478bd9Sstevel@tonic-gate /* 23*7c478bd9Sstevel@tonic-gate * Copyright 1997 Sun Microsystems, Inc. All rights reserved. 24*7c478bd9Sstevel@tonic-gate * Use is subject to license terms. 25*7c478bd9Sstevel@tonic-gate */ 26*7c478bd9Sstevel@tonic-gate 27*7c478bd9Sstevel@tonic-gate /* Copyright (c) 1988 AT&T */ 28*7c478bd9Sstevel@tonic-gate /* All Rights Reserved */ 29*7c478bd9Sstevel@tonic-gate 30*7c478bd9Sstevel@tonic-gate /* 31*7c478bd9Sstevel@tonic-gate * University Copyright- Copyright (c) 1982, 1986, 1988 32*7c478bd9Sstevel@tonic-gate * The Regents of the University of California 33*7c478bd9Sstevel@tonic-gate * All Rights Reserved 34*7c478bd9Sstevel@tonic-gate * 35*7c478bd9Sstevel@tonic-gate * University Acknowledgment- Portions of this document are derived from 36*7c478bd9Sstevel@tonic-gate * software developed by the University of California, Berkeley, and its 37*7c478bd9Sstevel@tonic-gate * contributors. 38*7c478bd9Sstevel@tonic-gate */ 39*7c478bd9Sstevel@tonic-gate 40*7c478bd9Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 41*7c478bd9Sstevel@tonic-gate 42*7c478bd9Sstevel@tonic-gate /*LINTLIBRARY*/ 43*7c478bd9Sstevel@tonic-gate 44*7c478bd9Sstevel@tonic-gate #include <sys/types.h> 45*7c478bd9Sstevel@tonic-gate #include "curses_inc.h" 46*7c478bd9Sstevel@tonic-gate 47*7c478bd9Sstevel@tonic-gate /* 48*7c478bd9Sstevel@tonic-gate * Make a derived window of an existing window. The two windows 49*7c478bd9Sstevel@tonic-gate * share the same character image. 50*7c478bd9Sstevel@tonic-gate * orig: the original window 51*7c478bd9Sstevel@tonic-gate * nl, nc: numbers of lines and columns 52*7c478bd9Sstevel@tonic-gate * by, bx: coordinates for upper-left corner of the derived 53*7c478bd9Sstevel@tonic-gate * window in the coord system of the parent window. 54*7c478bd9Sstevel@tonic-gate */ 55*7c478bd9Sstevel@tonic-gate 56*7c478bd9Sstevel@tonic-gate WINDOW * 57*7c478bd9Sstevel@tonic-gate derwin(WINDOW *orig, int num_lines, int nc, int by, int bx) 58*7c478bd9Sstevel@tonic-gate { 59*7c478bd9Sstevel@tonic-gate int y; 60*7c478bd9Sstevel@tonic-gate WINDOW *win = (WINDOW *) NULL, *par; 61*7c478bd9Sstevel@tonic-gate chtype **w_y, **o_y; 62*7c478bd9Sstevel@tonic-gate #ifdef _VR3_COMPAT_CODE 63*7c478bd9Sstevel@tonic-gate _ochtype **w_y16, **o_y16; 64*7c478bd9Sstevel@tonic-gate #endif /* _VR3_COMPAT_CODE */ 65*7c478bd9Sstevel@tonic-gate 66*7c478bd9Sstevel@tonic-gate /* make sure window fits inside the original one */ 67*7c478bd9Sstevel@tonic-gate if (by < 0 || (by + num_lines) > orig->_maxy || bx < 0 || 68*7c478bd9Sstevel@tonic-gate (bx + nc) > orig->_maxx) 69*7c478bd9Sstevel@tonic-gate goto done; 70*7c478bd9Sstevel@tonic-gate if (nc == 0) 71*7c478bd9Sstevel@tonic-gate nc = orig->_maxx - bx; 72*7c478bd9Sstevel@tonic-gate if (num_lines == 0) 73*7c478bd9Sstevel@tonic-gate num_lines = orig->_maxy - by; 74*7c478bd9Sstevel@tonic-gate 75*7c478bd9Sstevel@tonic-gate /* Create the window skeleton */ 76*7c478bd9Sstevel@tonic-gate if ((win = _makenew(num_lines, nc, by + orig->_begy, 77*7c478bd9Sstevel@tonic-gate bx + orig->_begx)) == NULL) 78*7c478bd9Sstevel@tonic-gate goto done; 79*7c478bd9Sstevel@tonic-gate 80*7c478bd9Sstevel@tonic-gate /* inheritance */ 81*7c478bd9Sstevel@tonic-gate /*LINTED*/ 82*7c478bd9Sstevel@tonic-gate win->_parx = (short) bx; 83*7c478bd9Sstevel@tonic-gate /*LINTED*/ 84*7c478bd9Sstevel@tonic-gate win->_pary = (short) by; 85*7c478bd9Sstevel@tonic-gate win->_bkgd = orig->_bkgd; 86*7c478bd9Sstevel@tonic-gate win->_attrs = orig->_attrs; 87*7c478bd9Sstevel@tonic-gate w_y = win->_y; 88*7c478bd9Sstevel@tonic-gate o_y = orig->_y; 89*7c478bd9Sstevel@tonic-gate 90*7c478bd9Sstevel@tonic-gate #ifdef _VR3_COMPAT_CODE 91*7c478bd9Sstevel@tonic-gate if (_y16update) { 92*7c478bd9Sstevel@tonic-gate int hby = by; 93*7c478bd9Sstevel@tonic-gate 94*7c478bd9Sstevel@tonic-gate w_y16 = win ->_y16; 95*7c478bd9Sstevel@tonic-gate o_y16 = orig->_y16; 96*7c478bd9Sstevel@tonic-gate 97*7c478bd9Sstevel@tonic-gate for (y = 0; y < num_lines; y++, hby++) 98*7c478bd9Sstevel@tonic-gate w_y16[y] = o_y16[hby] + bx; 99*7c478bd9Sstevel@tonic-gate } 100*7c478bd9Sstevel@tonic-gate #endif /* _VR3_COMPAT_CODE */ 101*7c478bd9Sstevel@tonic-gate 102*7c478bd9Sstevel@tonic-gate for (y = 0; y < num_lines; y++, by++) 103*7c478bd9Sstevel@tonic-gate w_y[y] = o_y[by] + bx; 104*7c478bd9Sstevel@tonic-gate 105*7c478bd9Sstevel@tonic-gate win->_yoffset = orig->_yoffset; 106*7c478bd9Sstevel@tonic-gate 107*7c478bd9Sstevel@tonic-gate /* update descendant number of ancestors */ 108*7c478bd9Sstevel@tonic-gate win->_parent = orig; 109*7c478bd9Sstevel@tonic-gate for (par = win->_parent; par != NULL; par = par->_parent) 110*7c478bd9Sstevel@tonic-gate par->_ndescs += 1; 111*7c478bd9Sstevel@tonic-gate 112*7c478bd9Sstevel@tonic-gate done: 113*7c478bd9Sstevel@tonic-gate return (win); 114*7c478bd9Sstevel@tonic-gate } 115