m_item_vis.c revision 166124
150276Speter/**************************************************************************** 2166124Srafan * Copyright (c) 1998-2003,2004 Free Software Foundation, Inc. * 350276Speter * * 450276Speter * Permission is hereby granted, free of charge, to any person obtaining a * 550276Speter * copy of this software and associated documentation files (the * 650276Speter * "Software"), to deal in the Software without restriction, including * 750276Speter * without limitation the rights to use, copy, modify, merge, publish, * 850276Speter * distribute, distribute with modifications, sublicense, and/or sell * 950276Speter * copies of the Software, and to permit persons to whom the Software is * 1050276Speter * furnished to do so, subject to the following conditions: * 1150276Speter * * 1250276Speter * The above copyright notice and this permission notice shall be included * 1350276Speter * in all copies or substantial portions of the Software. * 1450276Speter * * 1550276Speter * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * 1650276Speter * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * 1750276Speter * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * 1850276Speter * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * 1950276Speter * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * 2050276Speter * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * 2150276Speter * THE USE OR OTHER DEALINGS IN THE SOFTWARE. * 2250276Speter * * 2350276Speter * Except as contained in this notice, the name(s) of the above copyright * 2450276Speter * holders shall not be used in advertising or otherwise to promote the * 2550276Speter * sale, use or other dealings in this Software without prior written * 2650276Speter * authorization. * 2750276Speter ****************************************************************************/ 2850276Speter 2950276Speter/**************************************************************************** 30166124Srafan * Author: Juergen Pfeifer, 1995,1997 * 3150276Speter ****************************************************************************/ 3250276Speter 3350276Speter/*************************************************************************** 3450276Speter* Module m_item_vis * 3550276Speter* Tell if menu item is visible * 3650276Speter***************************************************************************/ 3750276Speter 3850276Speter#include "menu.priv.h" 3950276Speter 40166124SrafanMODULE_ID("$Id: m_item_vis.c,v 1.15 2004/12/25 21:40:09 tom Exp $") 4150276Speter 4250276Speter/*--------------------------------------------------------------------------- 4350276Speter| Facility : libnmenu 4450276Speter| Function : bool item_visible(const ITEM *item) 4550276Speter| 4650276Speter| Description : A item is visible if it currently appears in the 4750276Speter| subwindow of a posted menu. 4850276Speter| 4950276Speter| Return Values : TRUE if visible 5050276Speter| FALSE if invisible 5150276Speter+--------------------------------------------------------------------------*/ 5276726SpeterNCURSES_EXPORT(bool) 53166124Srafanitem_visible(const ITEM * item) 5450276Speter{ 5550276Speter MENU *menu; 56166124Srafan 57166124Srafan T((T_CALLED("item_visible(%p)"), item)); 58166124Srafan if (item && 59166124Srafan (menu = item->imenu) && 60166124Srafan (menu->status & _POSTED) && 61166124Srafan ((menu->toprow + menu->arows) > (item->y)) && 62166124Srafan (item->y >= menu->toprow)) 63166124Srafan returnBool(TRUE); 6450276Speter else 65166124Srafan returnBool(FALSE); 6650276Speter} 6750276Speter 6850276Speter/* m_item_vis.c ends here */ 69