1/* $OpenBSD: m_item_vis.c,v 1.8 2023/10/17 09:52:10 nicm Exp $ */ 2 3/**************************************************************************** 4 * Copyright 2020,2021 Thomas E. Dickey * 5 * Copyright 1998-2004,2010 Free Software Foundation, Inc. * 6 * * 7 * Permission is hereby granted, free of charge, to any person obtaining a * 8 * copy of this software and associated documentation files (the * 9 * "Software"), to deal in the Software without restriction, including * 10 * without limitation the rights to use, copy, modify, merge, publish, * 11 * distribute, distribute with modifications, sublicense, and/or sell * 12 * copies of the Software, and to permit persons to whom the Software is * 13 * furnished to do so, subject to the following conditions: * 14 * * 15 * The above copyright notice and this permission notice shall be included * 16 * in all copies or substantial portions of the Software. * 17 * * 18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * 19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * 20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * 21 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * 22 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * 23 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * 24 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. * 25 * * 26 * Except as contained in this notice, the name(s) of the above copyright * 27 * holders shall not be used in advertising or otherwise to promote the * 28 * sale, use or other dealings in this Software without prior written * 29 * authorization. * 30 ****************************************************************************/ 31 32/**************************************************************************** 33 * Author: Juergen Pfeifer, 1995,1997 * 34 ****************************************************************************/ 35 36/*************************************************************************** 37* Module m_item_vis * 38* Tell if menu item is visible * 39***************************************************************************/ 40 41#include "menu.priv.h" 42 43MODULE_ID("$Id: m_item_vis.c,v 1.8 2023/10/17 09:52:10 nicm Exp $") 44 45/*--------------------------------------------------------------------------- 46| Facility : libnmenu 47| Function : bool item_visible(const ITEM *item) 48| 49| Description : A item is visible if it currently appears in the 50| subwindow of a posted menu. 51| 52| Return Values : TRUE if visible 53| FALSE if invisible 54+--------------------------------------------------------------------------*/ 55MENU_EXPORT(bool) 56item_visible(const ITEM *item) 57{ 58 MENU *menu; 59 60 T((T_CALLED("item_visible(%p)"), (const void *)item)); 61 if (item && 62 (menu = item->imenu) && 63 (menu->status & _POSTED) && 64 ((menu->toprow + menu->arows) > (item->y)) && 65 (item->y >= menu->toprow)) 66 returnBool(TRUE); 67 else 68 returnBool(FALSE); 69} 70 71/* m_item_vis.c ends here */ 72