m_item_cur.c revision 50276
11573Srgrimes/**************************************************************************** 21573Srgrimes * Copyright (c) 1998 Free Software Foundation, Inc. * 31573Srgrimes * * 41573Srgrimes * Permission is hereby granted, free of charge, to any person obtaining a * 51573Srgrimes * copy of this software and associated documentation files (the * 61573Srgrimes * "Software"), to deal in the Software without restriction, including * 71573Srgrimes * without limitation the rights to use, copy, modify, merge, publish, * 81573Srgrimes * distribute, distribute with modifications, sublicense, and/or sell * 91573Srgrimes * copies of the Software, and to permit persons to whom the Software is * 101573Srgrimes * furnished to do so, subject to the following conditions: * 111573Srgrimes * * 121573Srgrimes * The above copyright notice and this permission notice shall be included * 131573Srgrimes * in all copies or substantial portions of the Software. * 141573Srgrimes * * 151573Srgrimes * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * 16251672Semaste * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * 171573Srgrimes * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * 181573Srgrimes * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * 191573Srgrimes * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * 201573Srgrimes * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * 211573Srgrimes * THE USE OR OTHER DEALINGS IN THE SOFTWARE. * 221573Srgrimes * * 231573Srgrimes * Except as contained in this notice, the name(s) of the above copyright * 241573Srgrimes * holders shall not be used in advertising or otherwise to promote the * 251573Srgrimes * sale, use or other dealings in this Software without prior written * 261573Srgrimes * authorization. * 271573Srgrimes ****************************************************************************/ 281573Srgrimes 291573Srgrimes/**************************************************************************** 301573Srgrimes * Author: Juergen Pfeifer <juergen.pfeifer@gmx.net> 1995,1997 * 311573Srgrimes ****************************************************************************/ 321573Srgrimes 3350476Speter/*************************************************************************** 341573Srgrimes* Module m_item_cur * 35249035Sdelphij* Set and get current menus item * 361573Srgrimes***************************************************************************/ 371573Srgrimes 381573Srgrimes#include "menu.priv.h" 391573Srgrimes 4047474SwesMODULE_ID("$Id: m_item_cur.c,v 1.11 1999/05/16 17:25:34 juergen Exp $") 4175845Sache 4247474Swes/*--------------------------------------------------------------------------- 431573Srgrimes| Facility : libnmenu 4459460Sphantom| Function : int set_current_item(MENU *menu, const ITEM *item) 4559460Sphantom| 461573Srgrimes| Description : Make the item the current item 4783206Sasmodai| 481573Srgrimes| Return Values : E_OK - success 491573Srgrimes+--------------------------------------------------------------------------*/ 5075845Sacheint set_current_item(MENU * menu, ITEM * item) 5175845Sache{ 521573Srgrimes if (menu && item && (item->imenu==menu)) 531573Srgrimes { 5447474Swes if ( menu->status & _IN_DRIVER ) 5547474Swes RETURN(E_BAD_STATE); 561573Srgrimes 571573Srgrimes assert( menu->curitem ); 58240107Sdes if (item != menu->curitem) 59240107Sdes { 60240107Sdes if (menu->status & _LINK_NEEDED) 61240107Sdes { 62240107Sdes /* 63240107Sdes * Items are available, but they are not linked together. 64240107Sdes * So we have to link here. 6581285Sru */ 6681285Sru _nc_Link_Items(menu); 671573Srgrimes } 681573Srgrimes assert(menu->pattern); 691573Srgrimes Reset_Pattern(menu); 701573Srgrimes /* adjust the window to make item visible and update the menu */ 711573Srgrimes Adjust_Current_Item(menu,menu->toprow,item); 721573Srgrimes } 731573Srgrimes } 74119893Sru else 751573Srgrimes RETURN(E_BAD_ARGUMENT); 761573Srgrimes 771573Srgrimes RETURN(E_OK); 7847474Swes} 7947474Swes 8047474Swes/*--------------------------------------------------------------------------- 811573Srgrimes| Facility : libnmenu 821573Srgrimes| Function : ITEM *current_item(const MENU *menu) 831573Srgrimes| 841573Srgrimes| Description : Return the menus current item 851573Srgrimes| 861573Srgrimes| Return Values : Item pointer or NULL if failure 8747474Swes+--------------------------------------------------------------------------*/ 8879754SddITEM *current_item(const MENU * menu) 8947474Swes{ 901573Srgrimes return (menu && menu->items) ? menu->curitem : (ITEM *)0; 9147474Swes} 9275845Sache 9375845Sache/*--------------------------------------------------------------------------- 94249035Sdelphij| Facility : libnmenu 9575845Sache| Function : int item_index(const ITEM *) 96108037Sru| 9747474Swes| Description : Return the logical index of this item. 98108037Sru| 9947474Swes| Return Values : The index or ERR if this is an invalid item pointer 10047474Swes+--------------------------------------------------------------------------*/ 10147474Swesint item_index(const ITEM *item) 10247474Swes{ 10347474Swes return (item && item->imenu) ? item->index : ERR; 104213476Skib} 105213476Skib 106213476Skib/* m_item_cur.c ends here */ 107213476Skib