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 /*LINTLIBRARY*/ 32 33 #include <sys/types.h> 34 #include "private.h" 35 36 /* Make sure top is not within a page of the end of the menu */ 37 38 void 39 _chk_top(MENU *m, int *top, ITEM *current) 40 { 41 if (Y(current) < *top) { 42 *top = Y(current); 43 } 44 if (Y(current) >= *top + Height(m)) { 45 *top = Y(current) - Height(m) + 1; 46 } 47 } 48 49 /* 50 * This routine makes sure top is in the correct position 51 * relative to current. It is only used when current is 52 * explicitly set. 53 */ 54 55 void 56 _chk_current(MENU *m, int *top, ITEM *current) 57 { 58 if (Y(current) < *top) { 59 *top = Y(current); 60 } 61 if (Y(current) >= *top + Height(m)) { 62 *top = min(Y(current), Rows(m) - Height(m)); 63 } 64 } 65