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/****************************************************************************
* Copyright (c) 1998-2003,2004 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_current.c,v 1.11 2004/12/25 22:40:13 tom Exp $")
/*---------------------------------------------------------------------------
| Facility : libnform
| Function : int set_current_field(FORM * form,FIELD * field)
|
| Description : Set the current field of the form to the specified one.
|
| Return Values : E_OK - success
| E_BAD_ARGUMENT - invalid form or field pointer
| E_REQUEST_DENIED - field not selectable
| E_BAD_STATE - called from a hook routine
| E_INVALID_FIELD - current field can't be left
| E_SYSTEM_ERROR - system error
+--------------------------------------------------------------------------*/
NCURSES_EXPORT(int)
set_current_field(FORM *form, FIELD *field)
{
int err = E_OK;
T((T_CALLED("set_current_field(%p,%p)"), form, field));
if (form == 0 || field == 0)
{
RETURN(E_BAD_ARGUMENT);
}
else if ((form != field->form) || Field_Is_Not_Selectable(field))
{
RETURN(E_REQUEST_DENIED);
}
else if ((form->status & _POSTED) == 0)
{
form->current = field;
form->curpage = field->page;
}
else
{
if ((form->status & _IN_DRIVER) != 0)
{
err = E_BAD_STATE;
}
else
{
if (form->current != field)
{
if (!_nc_Internal_Validation(form))
{
err = E_INVALID_FIELD;
}
else
{
Call_Hook(form, fieldterm);
if (field->page != form->curpage)
{
Call_Hook(form, formterm);
err = _nc_Set_Form_Page(form, (int)field->page, field);
Call_Hook(form, forminit);
}
else
{
err = _nc_Set_Current_Field(form, field);
}
Call_Hook(form, fieldinit);
(void)_nc_Refresh_Current_Field(form);
}
}
}
}
RETURN(err);
}
/*---------------------------------------------------------------------------
| Facility : libnform
| Function : FIELD *current_field(const FORM * form)
|
| Description : Return the current field.
|
| Return Values : Pointer to the current field.
+--------------------------------------------------------------------------*/
NCURSES_EXPORT(FIELD *)
current_field(const FORM *form)
{
T((T_CALLED("current_field(%p)"), form));
returnField(Normalize_Form(form)->current);
}
/*---------------------------------------------------------------------------
| Facility : libnform
| Function : int field_index(const FIELD * field)
|
| Description : Return the index of the field in the field-array of
| the form.
|
| Return Values : >= 0 : field index
| -1 : fieldpointer invalid or field not connected
+--------------------------------------------------------------------------*/
NCURSES_EXPORT(int)
field_index(const FIELD *field)
{
T((T_CALLED("field_index(%p)"), field));
returnCode((field != 0 && field->form != 0) ? (int)field->index : -1);
}
/* fld_current.c ends here */
|
