-/*-----------------------------------------------------------------------------+
-| The ncurses form library is Copyright (C) 1995-1997 |
-| by Juergen Pfeifer <Juergen.Pfeifer@T-Online.de> |
-| All Rights Reserved. |
-| |
-| Permission to use, copy, modify, and distribute this software and its |
-| documentation for any purpose and without fee is hereby granted, provided |
-| that the above copyright notice appear in all copies and that both that |
-| copyright notice and this permission notice appear in supporting |
-| documentation, and that the name of the above listed copyright holder(s) not |
-| be used in advertising or publicity pertaining to distribution of the |
-| software without specific, written prior permission. |
-| |
-| THE ABOVE LISTED COPYRIGHT HOLDER(S) DISCLAIM ALL WARRANTIES WITH REGARD TO |
-| THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FIT- |
-| NESS, IN NO EVENT SHALL THE ABOVE LISTED COPYRIGHT HOLDER(S) BE LIABLE FOR |
-| ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RE- |
-| SULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, |
-| NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH |
-| THE USE OR PERFORMANCE OF THIS SOFTWARE. |
-+-----------------------------------------------------------------------------*/
+/****************************************************************************
+ * Copyright (c) 1998-2004,2010 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_type.c,v 1.4 1997/05/01 16:47:54 juergen Exp $")
+MODULE_ID("$Id: fld_type.c,v 1.16 2010/01/23 21:14:36 tom Exp $")
-static FIELDTYPE const default_fieldtype = {
- 0, /* status */
- 0L, /* reference count */
- (FIELDTYPE *)0, /* pointer to left operand */
- (FIELDTYPE *)0, /* pointer to right operand */
- NULL, /* makearg function */
- NULL, /* copyarg function */
- NULL, /* freearg function */
- NULL, /* field validation function */
- NULL, /* Character check function */
- NULL, /* enumerate next function */
- NULL /* enumerate previous function */
-};
-\f
/*---------------------------------------------------------------------------
| Facility : libnform
-| Function : FIELDTYPE *new_fieldtype(
-| bool (* const field_check)(FIELD *,const void *),
-| bool (* const char_check) (int, const void *) )
+| Function : int set_field_type(FIELD *field, FIELDTYPE *type,...)
|
-| Description : Create a new fieldtype. The application programmer must
-| write a field_check and a char_check function and give
-| them as input to this call.
-| If an error occurs, errno is set to
-| E_BAD_ARGUMENT - invalid arguments
-| E_SYSTEM_ERROR - system error (no memory)
+| Description : Associate the specified fieldtype with the field.
+| Certain field types take additional arguments. Look
+| at the spec of the field types !
|
-| Return Values : Fieldtype pointer or NULL if error occured
+| Return Values : E_OK - success
+| E_SYSTEM_ERROR - system error
+--------------------------------------------------------------------------*/
-FIELDTYPE *new_fieldtype(
- bool (* const field_check)(FIELD *,const void *),
- bool (* const char_check) (int,const void *) )
+NCURSES_EXPORT(int)
+set_field_type(FIELD *field, FIELDTYPE *type,...)
{
- FIELDTYPE *nftyp = (FIELDTYPE *)0;
-
- if ( (field_check) && (char_check) )
- {
- nftyp = (FIELDTYPE *)malloc(sizeof(FIELDTYPE));
- if (nftyp)
- {
- *nftyp = default_fieldtype;
- nftyp->fcheck = field_check;
- nftyp->ccheck = char_check;
- }
- else
- {
- SET_ERROR( E_SYSTEM_ERROR );
- }
- }
- else
- {
- SET_ERROR( E_BAD_ARGUMENT );
- }
- return nftyp;
-}
+ va_list ap;
+ int res = E_SYSTEM_ERROR;
+ int err = 0;
-/*---------------------------------------------------------------------------
-| Facility : libnform
-| Function : FIELDTYPE *link_fieldtype(
-| FIELDTYPE *type1,
-| FIELDTYPE *type2)
-|
-| Description : Create a new fieldtype built from the two given types.
-| They are connected by an logical 'OR'.
-| If an error occurs, errno is set to
-| E_BAD_ARGUMENT - invalid arguments
-| E_SYSTEM_ERROR - system error (no memory)
-|
-| Return Values : Fieldtype pointer or NULL if error occured.
-+--------------------------------------------------------------------------*/
-FIELDTYPE *link_fieldtype(FIELDTYPE * type1, FIELDTYPE * type2)
-{
- FIELDTYPE *nftyp = (FIELDTYPE *)0;
+ T((T_CALLED("set_field_type(%p,%p)"), (void *)field, (void *)type));
+
+ va_start(ap, type);
+
+ Normalize_Field(field);
+ _nc_Free_Type(field);
- if ( type1 && type2 )
+ field->type = type;
+ field->arg = (void *)_nc_Make_Argument(field->type, &ap, &err);
+
+ if (err)
{
- nftyp = (FIELDTYPE *)malloc(sizeof(FIELDTYPE));
- if (nftyp)
- {
- *nftyp = default_fieldtype;
- nftyp->status |= _LINKED_TYPE;
- if ((type1->status & _HAS_ARGS) || (type2->status & _HAS_ARGS) )
- nftyp->status |= _HAS_ARGS;
- if ((type1->status & _HAS_CHOICE) || (type2->status & _HAS_CHOICE) )
- nftyp->status |= _HAS_CHOICE;
- nftyp->left = type1;
- nftyp->right = type2;
- type1->ref++;
- type2->ref++;
- }
- else
- {
- SET_ERROR( E_SYSTEM_ERROR );
- }
+ _nc_Free_Argument(field->type, (TypeArgument *)(field->arg));
+ field->type = (FIELDTYPE *)0;
+ field->arg = (void *)0;
}
else
{
- SET_ERROR( E_BAD_ARGUMENT );
+ res = E_OK;
+ if (field->type)
+ field->type->ref++;
}
- return nftyp;
-}
-
-/*---------------------------------------------------------------------------
-| Facility : libnform
-| Function : int free_fieldtype(FIELDTYPE *typ)
-|
-| Description : Release the memory associated with this fieldtype.
-|
-| Return Values : E_OK - success
-| E_CONNECTED - there are fields referencing the type
-| E_BAD_ARGUMENT - invalid fieldtype pointer
-+--------------------------------------------------------------------------*/
-int free_fieldtype(FIELDTYPE *typ)
-{
- if (!typ)
- RETURN(E_BAD_ARGUMENT);
-
- if (typ->ref!=0)
- RETURN(E_CONNECTED);
-
- if (typ->status & _RESIDENT)
- RETURN(E_CONNECTED);
- if (typ->status & _LINKED_TYPE)
- {
- if (typ->left ) typ->left->ref--;
- if (typ->right) typ->right->ref--;
- }
- free(typ);
- RETURN(E_OK);
+ va_end(ap);
+ RETURN(res);
}
/*---------------------------------------------------------------------------
| Facility : libnform
-| Function : int set_fieldtype_arg(
-| FIELDTYPE *typ,
-| void * (* const make_arg)(va_list *),
-| void * (* const copy_arg)(const void *),
-| void (* const free_arg)(void *) )
+| Function : FIELDTYPE *field_type(const FIELD *field)
|
-| Description : Connects to the type additional arguments necessary
-| for a set_field_type call. The various function pointer
-| arguments are:
-| make_arg : allocates a structure for the field
-| specific parameters.
-| copy_arg : duplicate the structure created by
-| make_arg
-| free_arg : Release the memory allocated by make_arg
-| or copy_arg
-|
-| At least one of those functions must be non-NULL.
+| Description : Retrieve the associated fieldtype for this field.
|
-| Return Values : E_OK - success
-| E_BAD_ARGUMENT - invalid argument
+| Return Values : Pointer to fieldtype of NULL if none is defined.
+--------------------------------------------------------------------------*/
-int set_fieldtype_arg(FIELDTYPE * typ,
- void * (* const make_arg)(va_list *),
- void * (* const copy_arg)(const void *),
- void (* const free_arg)(void *))
+NCURSES_EXPORT(FIELDTYPE *)
+field_type(const FIELD *field)
{
- if ( !typ || !make_arg || !copy_arg || !free_arg )
- RETURN(E_BAD_ARGUMENT);
-
- typ->status |= _HAS_ARGS;
- typ->makearg = make_arg;
- typ->copyarg = copy_arg;
- typ->freearg = free_arg;
- RETURN(E_OK);
-}
-
-/*---------------------------------------------------------------------------
-| Facility : libnform
-| Function : int set_fieldtype_choice(
-| FIELDTYPE *typ,
-| bool (* const next_choice)(FIELD *,const void *),
-| bool (* const prev_choice)(FIELD *,const void *))
-|
-| Description : Define implementation of enumeration requests.
-|
-| Return Values : E_OK - success
-| E_BAD_ARGUMENT - invalid arguments
-+--------------------------------------------------------------------------*/
-int set_fieldtype_choice(FIELDTYPE * typ,
- bool (* const next_choice) (FIELD *,const void *),
- bool (* const prev_choice) (FIELD *,const void *))
-{
- if ( !typ || !next_choice || !prev_choice )
- RETURN(E_BAD_ARGUMENT);
-
- typ->status |= _HAS_CHOICE;
- typ->next = next_choice;
- typ->prev = prev_choice;
- RETURN(E_OK);
+ T((T_CALLED("field_type(%p)"), (const void *)field));
+ returnFieldType(Normalize_Field(field)->type);
}
/* fld_type.c ends here */
projects / ncurses.git / blobdiff