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 /* Copyright (c) 1988 AT&T */ 23 /* All Rights Reserved */ 24 25 26 /* 27 * Copyright (c) 1997, by Sun Mircrosystems, Inc. 28 * All rights reserved. 29 */ 30 31 #pragma ident "%Z%%M% %I% %E% SMI" /* SVr4.0 1.4 */ 32 33 /*LINTLIBRARY*/ 34 35 #include <sys/types.h> 36 #include "private.h" 37 38 /* Make sure top is not within a page of the end of the menu */ 39 40 void 41 _chk_top(MENU *m, int *top, ITEM *current) 42 { 43 if (Y(current) < *top) { 44 *top = Y(current); 45 } 46 if (Y(current) >= *top + Height(m)) { 47 *top = Y(current) - Height(m) + 1; 48 } 49 } 50 51 /* 52 * This routine makes sure top is in the correct position 53 * relative to current. It is only used when current is 54 * explicitly set. 55 */ 56 57 void 58 _chk_current(MENU *m, int *top, ITEM *current) 59 { 60 if (Y(current) < *top) { 61 *top = Y(current); 62 } 63 if (Y(current) >= *top + Height(m)) { 64 *top = min(Y(current), Rows(m) - Height(m)); 65 } 66 } 67