1 /****************************************************************************
2 * Copyright (c) 1998,2000 Free Software Foundation, Inc. *
4 * Permission is hereby granted, free of charge, to any person obtaining a *
5 * copy of this software and associated documentation files (the *
6 * "Software"), to deal in the Software without restriction, including *
7 * without limitation the rights to use, copy, modify, merge, publish, *
8 * distribute, distribute with modifications, sublicense, and/or sell *
9 * copies of the Software, and to permit persons to whom the Software is *
10 * furnished to do so, subject to the following conditions: *
12 * The above copyright notice and this permission notice shall be included *
13 * in all copies or substantial portions of the Software. *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
16 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
18 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
19 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
20 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
21 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
23 * Except as contained in this notice, the name(s) of the above copyright *
24 * holders shall not be used in advertising or otherwise to promote the *
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27 ****************************************************************************/
29 /****************************************************************************
30 * Author: Juergen Pfeifer <juergen.pfeifer@gmx.net> 1995,1997 *
31 ****************************************************************************/
32 #include "form.priv.h"
34 MODULE_ID("$Id: fld_current.c,v 1.5 2000/12/10 02:09:38 tom Exp $")
36 /*---------------------------------------------------------------------------
38 | Function : int set_current_field(FORM * form,FIELD * field)
40 | Description : Set the current field of the form to the specified one.
42 | Return Values : E_OK - success
43 | E_BAD_ARGUMENT - invalid form or field pointer
44 | E_REQUEST_DENIED - field not selectable
45 | E_BAD_STATE - called from a hook routine
46 | E_INVALID_FIELD - current field can't be left
47 | E_SYSTEM_ERROR - system error
48 +--------------------------------------------------------------------------*/
50 set_current_field (FORM * form, FIELD * field)
54 if ( !form || !field )
55 RETURN(E_BAD_ARGUMENT);
57 if ( (form != field->form) || Field_Is_Not_Selectable(field) )
58 RETURN(E_REQUEST_DENIED);
60 if (!(form->status & _POSTED))
62 form->current = field;
63 form->curpage = field->page;
67 if (form->status & _IN_DRIVER)
71 if (form->current != field)
73 if (!_nc_Internal_Validation(form))
74 err = E_INVALID_FIELD;
77 Call_Hook(form,fieldterm);
78 if (field->page != form->curpage)
80 Call_Hook(form,formterm);
81 err = _nc_Set_Form_Page(form,field->page,field);
82 Call_Hook(form,forminit);
86 err = _nc_Set_Current_Field(form,field);
88 Call_Hook(form,fieldinit);
89 _nc_Refresh_Current_Field(form);
97 /*---------------------------------------------------------------------------
99 | Function : FIELD *current_field(const FORM * form)
101 | Description : Return the current field.
103 | Return Values : Pointer to the current field.
104 +--------------------------------------------------------------------------*/
105 NCURSES_EXPORT(FIELD *)
106 current_field (const FORM * form)
108 return Normalize_Form(form)->current;
111 /*---------------------------------------------------------------------------
112 | Facility : libnform
113 | Function : int field_index(const FIELD * field)
115 | Description : Return the index of the field in the field-array of
118 | Return Values : >= 0 : field index
119 | -1 : fieldpointer invalid or field not connected
120 +--------------------------------------------------------------------------*/
122 field_index (const FIELD * field)
124 return ( (field && field->form) ? field->index : -1 );
127 /* fld_current.c ends here */