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 Microsystems, Inc. 28 * All rights reserved. 29 */ 30 31 #pragma ident "%Z%%M% %I% %E% SMI" /* SVr4.0 1.1 */ 32 33 /*LINTLIBRARY*/ 34 35 #include <sys/types.h> 36 #include "utility.h" 37 38 #define first(f) (0) 39 #define last(f) (f->maxpage - 1) 40 41 /* next - return next page after current page(cyclic) */ 42 static int 43 next(FORM *f) 44 { 45 int p = P(f); 46 47 if (++p > last(f)) 48 p = first(f); 49 return (p); 50 } 51 52 /* prev - return previous page before current page(cyclic) */ 53 static int 54 prev(FORM *f) 55 { 56 int p = P(f); 57 58 if (--p < first(f)) 59 p = last(f); 60 return (p); 61 } 62 63 int 64 _next_page(FORM *f) 65 { 66 return (_set_form_page(f, next(f), (FIELD *) 0)); 67 } 68 69 int 70 _prev_page(FORM *f) 71 { 72 return (_set_form_page(f, prev(f), (FIELD *) 0)); 73 } 74 75 int 76 _first_page(FORM *f) 77 { 78 return (_set_form_page(f, first(f), (FIELD *) 0)); 79 } 80 81 int 82 _last_page(FORM *f) 83 { 84 return (_set_form_page(f, last(f), (FIELD *) 0)); 85 } 86