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/* $OpenBSD: fld_max.c,v 1.7 2023/10/17 09:52:10 nicm Exp $ */
/****************************************************************************
* Copyright 2019-2020,2021 Thomas E. Dickey *
* Copyright 1998-2012,2013 Free Software Foundation, Inc. *
* *
* Permission is hereby granted, free of charge, to any person obtaining a *
* copy of this software and associated documentation files (the *
* "Software"), to deal in the Software without restriction, including *
* without limitation the rights to use, copy, modify, merge, publish, *
* distribute, distribute with modifications, sublicense, and/or sell *
* copies of the Software, and to permit persons to whom the Software is *
* furnished to do so, subject to the following conditions: *
* *
* The above copyright notice and this permission notice shall be included *
* in all copies or substantial portions of the Software. *
* *
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
* IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
* THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
* *
* Except as contained in this notice, the name(s) of the above copyright *
* holders shall not be used in advertising or otherwise to promote the *
* sale, use or other dealings in this Software without prior written *
* authorization. *
****************************************************************************/
/****************************************************************************
* Author: Juergen Pfeifer, 1995,1997 *
****************************************************************************/
#include "form.priv.h"
MODULE_ID("$Id: fld_max.c,v 1.7 2023/10/17 09:52:10 nicm Exp $")
/*---------------------------------------------------------------------------
| Facility : libnform
| Function : int set_max_field(FIELD *field, int maxgrow)
|
| Description : Set the maximum growth for a dynamic field. If maxgrow=0
| the field may grow to any possible size.
|
| Return Values : E_OK - success
| E_BAD_ARGUMENT - invalid argument
+--------------------------------------------------------------------------*/
FORM_EXPORT(int)
set_max_field(FIELD *field, int maxgrow)
{
T((T_CALLED("set_max_field(%p,%d)"), (void *)field, maxgrow));
if (!field || (maxgrow < 0))
RETURN(E_BAD_ARGUMENT);
else
{
bool single_line_field = Single_Line_Field(field);
if (maxgrow > 0)
{
if (((single_line_field && (maxgrow < field->dcols)) ||
(!single_line_field && (maxgrow < field->drows))) &&
!Field_Has_Option(field, O_INPUT_LIMIT))
RETURN(E_BAD_ARGUMENT);
}
field->maxgrow = maxgrow;
/* shrink */
if (maxgrow > 0 && Field_Has_Option(field, O_INPUT_LIMIT) &&
field->dcols > maxgrow)
field->dcols = maxgrow;
ClrStatus(field, _MAY_GROW);
if (!((unsigned)field->opts & O_STATIC))
{
if ((maxgrow == 0) ||
(single_line_field && (field->dcols < maxgrow)) ||
(!single_line_field && (field->drows < maxgrow)))
SetStatus(field, _MAY_GROW);
}
}
RETURN(E_OK);
}
/* fld_max.c ends here */
|
