1 /* $OpenBSD: fld_max.c,v 1.4 2001/01/22 18:02:13 millert Exp $ */ 2 3 /**************************************************************************** 4 * Copyright (c) 1998,2000 Free Software Foundation, Inc. * 5 * * 6 * Permission is hereby granted, free of charge, to any person obtaining a * 7 * copy of this software and associated documentation files (the * 8 * "Software"), to deal in the Software without restriction, including * 9 * without limitation the rights to use, copy, modify, merge, publish, * 10 * distribute, distribute with modifications, sublicense, and/or sell * 11 * copies of the Software, and to permit persons to whom the Software is * 12 * furnished to do so, subject to the following conditions: * 13 * * 14 * The above copyright notice and this permission notice shall be included * 15 * in all copies or substantial portions of the Software. * 16 * * 17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * 18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * 19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * 20 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * 21 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * 22 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * 23 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. * 24 * * 25 * Except as contained in this notice, the name(s) of the above copyright * 26 * holders shall not be used in advertising or otherwise to promote the * 27 * sale, use or other dealings in this Software without prior written * 28 * authorization. * 29 ****************************************************************************/ 30 31 /**************************************************************************** 32 * Author: Juergen Pfeifer <juergen.pfeifer@gmx.net> 1995,1997 * 33 ****************************************************************************/ 34 35 #include "form.priv.h" 36 37 MODULE_ID("$From: fld_max.c,v 1.5 2000/12/10 02:09:38 tom Exp $") 38 39 /*--------------------------------------------------------------------------- 40 | Facility : libnform 41 | Function : int set_max_field(FIELD *field, int maxgrow) 42 | 43 | Description : Set the maximum growth for a dynamic field. If maxgrow=0 44 | the field may grow to any possible size. 45 | 46 | Return Values : E_OK - success 47 | E_BAD_ARGUMENT - invalid argument 48 +--------------------------------------------------------------------------*/ 49 NCURSES_EXPORT(int) 50 set_max_field (FIELD *field, int maxgrow) 51 { 52 if (!field || (maxgrow<0)) 53 RETURN(E_BAD_ARGUMENT); 54 else 55 { 56 bool single_line_field = Single_Line_Field(field); 57 58 if (maxgrow>0) 59 { 60 if (( single_line_field && (maxgrow < field->dcols)) || 61 (!single_line_field && (maxgrow < field->drows))) 62 RETURN(E_BAD_ARGUMENT); 63 } 64 field->maxgrow = maxgrow; 65 field->status &= ~_MAY_GROW; 66 if (!(field->opts & O_STATIC)) 67 { 68 if ((maxgrow==0) || 69 ( single_line_field && (field->dcols < maxgrow)) || 70 (!single_line_field && (field->drows < maxgrow))) 71 field->status |= _MAY_GROW; 72 } 73 } 74 RETURN(E_OK); 75 } 76 77 /* fld_max.c ends here */ 78