150276Speter/****************************************************************************
2166124Srafan * Copyright (c) 1998-2003,2004 Free Software Foundation, Inc.              *
350276Speter *                                                                          *
450276Speter * Permission is hereby granted, free of charge, to any person obtaining a  *
550276Speter * copy of this software and associated documentation files (the            *
650276Speter * "Software"), to deal in the Software without restriction, including      *
750276Speter * without limitation the rights to use, copy, modify, merge, publish,      *
850276Speter * distribute, distribute with modifications, sublicense, and/or sell       *
950276Speter * copies of the Software, and to permit persons to whom the Software is    *
1050276Speter * furnished to do so, subject to the following conditions:                 *
1150276Speter *                                                                          *
1250276Speter * The above copyright notice and this permission notice shall be included  *
1350276Speter * in all copies or substantial portions of the Software.                   *
1450276Speter *                                                                          *
1550276Speter * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
1650276Speter * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
1750276Speter * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
1850276Speter * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
1950276Speter * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
2050276Speter * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *
2150276Speter * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
2250276Speter *                                                                          *
2350276Speter * Except as contained in this notice, the name(s) of the above copyright   *
2450276Speter * holders shall not be used in advertising or otherwise to promote the     *
2550276Speter * sale, use or other dealings in this Software without prior written       *
2650276Speter * authorization.                                                           *
2750276Speter ****************************************************************************/
2850276Speter
2950276Speter/****************************************************************************
30166124Srafan *   Author:  Juergen Pfeifer, 1995,1997                                    *
3150276Speter ****************************************************************************/
3250276Speter
3350276Speter#include "form.priv.h"
3450276Speter
35166124SrafanMODULE_ID("$Id: fld_max.c,v 1.9 2004/12/11 21:51:54 tom Exp $")
3650276Speter
3750276Speter/*---------------------------------------------------------------------------
3850276Speter|   Facility      :  libnform
3950276Speter|   Function      :  int set_max_field(FIELD *field, int maxgrow)
4050276Speter|
4150276Speter|   Description   :  Set the maximum growth for a dynamic field. If maxgrow=0
4250276Speter|                    the field may grow to any possible size.
4350276Speter|
4450276Speter|   Return Values :  E_OK           - success
4550276Speter|                    E_BAD_ARGUMENT - invalid argument
4650276Speter+--------------------------------------------------------------------------*/
4776726SpeterNCURSES_EXPORT(int)
48166124Srafanset_max_field(FIELD *field, int maxgrow)
4950276Speter{
50166124Srafan  T((T_CALLED("set_max_field(%p,%d)"), field, maxgrow));
51166124Srafan
52166124Srafan  if (!field || (maxgrow < 0))
5350276Speter    RETURN(E_BAD_ARGUMENT);
5450276Speter  else
5550276Speter    {
5650276Speter      bool single_line_field = Single_Line_Field(field);
5750276Speter
58166124Srafan      if (maxgrow > 0)
5950276Speter	{
60166124Srafan	  if ((single_line_field && (maxgrow < field->dcols)) ||
6150276Speter	      (!single_line_field && (maxgrow < field->drows)))
6250276Speter	    RETURN(E_BAD_ARGUMENT);
6350276Speter	}
6450276Speter      field->maxgrow = maxgrow;
6550276Speter      field->status &= ~_MAY_GROW;
6650276Speter      if (!(field->opts & O_STATIC))
6750276Speter	{
68166124Srafan	  if ((maxgrow == 0) ||
69166124Srafan	      (single_line_field && (field->dcols < maxgrow)) ||
7050276Speter	      (!single_line_field && (field->drows < maxgrow)))
7150276Speter	    field->status |= _MAY_GROW;
7250276Speter	}
7350276Speter    }
7450276Speter  RETURN(E_OK);
7550276Speter}
76166124Srafan
7750276Speter/* fld_max.c ends here */
78