1 /****************************************************************************
2 * Copyright 2019-2020,2021 Thomas E. Dickey *
3 * Copyright 1998-2012,2013 Free Software Foundation, Inc. *
5 * Permission is hereby granted, free of charge, to any person obtaining a *
6 * copy of this software and associated documentation files (the *
7 * "Software"), to deal in the Software without restriction, including *
8 * without limitation the rights to use, copy, modify, merge, publish, *
9 * distribute, distribute with modifications, sublicense, and/or sell *
10 * copies of the Software, and to permit persons to whom the Software is *
11 * furnished to do so, subject to the following conditions: *
13 * The above copyright notice and this permission notice shall be included *
14 * in all copies or substantial portions of the Software. *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
17 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
18 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
19 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
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22 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
24 * Except as contained in this notice, the name(s) of the above copyright *
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28 ****************************************************************************/
30 /****************************************************************************
31 * Author: Juergen Pfeifer, 1995,1997 *
32 ****************************************************************************/
34 #include "form.priv.h"
36 MODULE_ID("$Id: fld_max.c,v 1.18 2021/06/17 21:26:02 tom Exp $")
38 /*---------------------------------------------------------------------------
40 | Function : int set_max_field(FIELD *field, int maxgrow)
42 | Description : Set the maximum growth for a dynamic field. If maxgrow=0
43 | the field may grow to any possible size.
45 | Return Values : E_OK - success
46 | E_BAD_ARGUMENT - invalid argument
47 +--------------------------------------------------------------------------*/
49 set_max_field(FIELD *field, int maxgrow)
51 T((T_CALLED("set_max_field(%p,%d)"), (void *)field, maxgrow));
53 if (!field || (maxgrow < 0))
54 RETURN(E_BAD_ARGUMENT);
57 bool single_line_field = Single_Line_Field(field);
61 if (((single_line_field && (maxgrow < field->dcols)) ||
62 (!single_line_field && (maxgrow < field->drows))) &&
63 !Field_Has_Option(field, O_INPUT_LIMIT))
64 RETURN(E_BAD_ARGUMENT);
66 field->maxgrow = maxgrow;
68 if (maxgrow > 0 && Field_Has_Option(field, O_INPUT_LIMIT) &&
69 field->dcols > maxgrow)
70 field->dcols = maxgrow;
71 ClrStatus(field, _MAY_GROW);
72 if (!((unsigned)field->opts & O_STATIC))
75 (single_line_field && (field->dcols < maxgrow)) ||
76 (!single_line_field && (field->drows < maxgrow)))
77 SetStatus(field, _MAY_GROW);
83 /* fld_max.c ends here */