fld_current.c revision 76726
1291993Smelifaro/**************************************************************************** 2291993Smelifaro * Copyright (c) 1998,2000 Free Software Foundation, Inc. * 3291993Smelifaro * * 4291993Smelifaro * Permission is hereby granted, free of charge, to any person obtaining a * 5291993Smelifaro * copy of this software and associated documentation files (the * 6291993Smelifaro * "Software"), to deal in the Software without restriction, including * 7291993Smelifaro * without limitation the rights to use, copy, modify, merge, publish, * 8291993Smelifaro * distribute, distribute with modifications, sublicense, and/or sell * 9291993Smelifaro * copies of the Software, and to permit persons to whom the Software is * 10291993Smelifaro * furnished to do so, subject to the following conditions: * 11291993Smelifaro * * 12291993Smelifaro * The above copyright notice and this permission notice shall be included * 13291993Smelifaro * in all copies or substantial portions of the Software. * 14291993Smelifaro * * 15291993Smelifaro * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * 16291993Smelifaro * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * 17291993Smelifaro * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * 18291993Smelifaro * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * 19291993Smelifaro * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * 20291993Smelifaro * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * 21291993Smelifaro * THE USE OR OTHER DEALINGS IN THE SOFTWARE. * 22291993Smelifaro * * 23291993Smelifaro * Except as contained in this notice, the name(s) of the above copyright * 24291993Smelifaro * holders shall not be used in advertising or otherwise to promote the * 25291993Smelifaro * sale, use or other dealings in this Software without prior written * 26291993Smelifaro * authorization. * 27291993Smelifaro ****************************************************************************/ 28291993Smelifaro 29291993Smelifaro/**************************************************************************** 30291993Smelifaro * Author: Juergen Pfeifer <juergen.pfeifer@gmx.net> 1995,1997 * 31291993Smelifaro ****************************************************************************/ 32291993Smelifaro#include "form.priv.h" 33291993Smelifaro 34291993SmelifaroMODULE_ID("$Id: fld_current.c,v 1.5 2000/12/10 02:09:38 tom Exp $") 35291993Smelifaro 36291993Smelifaro/*--------------------------------------------------------------------------- 37291993Smelifaro| Facility : libnform 38291993Smelifaro| Function : int set_current_field(FORM * form,FIELD * field) 39291993Smelifaro| 40291993Smelifaro| Description : Set the current field of the form to the specified one. 41291993Smelifaro| 42291993Smelifaro| Return Values : E_OK - success 43291993Smelifaro| E_BAD_ARGUMENT - invalid form or field pointer 44291993Smelifaro| E_REQUEST_DENIED - field not selectable 45291993Smelifaro| E_BAD_STATE - called from a hook routine 46291993Smelifaro| E_INVALID_FIELD - current field can't be left 47291993Smelifaro| E_SYSTEM_ERROR - system error 48291993Smelifaro+--------------------------------------------------------------------------*/ 49291993SmelifaroNCURSES_EXPORT(int) 50291993Smelifaroset_current_field (FORM * form, FIELD * field) 51291993Smelifaro{ 52291993Smelifaro int err = E_OK; 53291993Smelifaro 54291993Smelifaro if ( !form || !field ) 55291993Smelifaro RETURN(E_BAD_ARGUMENT); 56291993Smelifaro 57291993Smelifaro if ( (form != field->form) || Field_Is_Not_Selectable(field) ) 58291993Smelifaro RETURN(E_REQUEST_DENIED); 59291993Smelifaro 60291993Smelifaro if (!(form->status & _POSTED)) 61291993Smelifaro { 62 form->current = field; 63 form->curpage = field->page; 64 } 65 else 66 { 67 if (form->status & _IN_DRIVER) 68 err = E_BAD_STATE; 69 else 70 { 71 if (form->current != field) 72 { 73 if (!_nc_Internal_Validation(form)) 74 err = E_INVALID_FIELD; 75 else 76 { 77 Call_Hook(form,fieldterm); 78 if (field->page != form->curpage) 79 { 80 Call_Hook(form,formterm); 81 err = _nc_Set_Form_Page(form,field->page,field); 82 Call_Hook(form,forminit); 83 } 84 else 85 { 86 err = _nc_Set_Current_Field(form,field); 87 } 88 Call_Hook(form,fieldinit); 89 _nc_Refresh_Current_Field(form); 90 } 91 } 92 } 93 } 94 RETURN(err); 95} 96 97/*--------------------------------------------------------------------------- 98| Facility : libnform 99| Function : FIELD *current_field(const FORM * form) 100| 101| Description : Return the current field. 102| 103| Return Values : Pointer to the current field. 104+--------------------------------------------------------------------------*/ 105NCURSES_EXPORT(FIELD *) 106current_field (const FORM * form) 107{ 108 return Normalize_Form(form)->current; 109} 110 111/*--------------------------------------------------------------------------- 112| Facility : libnform 113| Function : int field_index(const FIELD * field) 114| 115| Description : Return the index of the field in the field-array of 116| the form. 117| 118| Return Values : >= 0 : field index 119| -1 : fieldpointer invalid or field not connected 120+--------------------------------------------------------------------------*/ 121NCURSES_EXPORT(int) 122field_index (const FIELD * field) 123{ 124 return ( (field && field->form) ? field->index : -1 ); 125} 126 127/* fld_current.c ends here */ 128