1 /* $OpenBSD: m_item_vis.c,v 1.3 1997/12/03 05:31:22 millert Exp $ */ 2 3 /*-----------------------------------------------------------------------------+ 4 | The ncurses menu library is Copyright (C) 1995-1997 | 5 | by Juergen Pfeifer <Juergen.Pfeifer@T-Online.de> | 6 | All Rights Reserved. | 7 | | 8 | Permission to use, copy, modify, and distribute this software and its | 9 | documentation for any purpose and without fee is hereby granted, provided | 10 | that the above copyright notice appear in all copies and that both that | 11 | copyright notice and this permission notice appear in supporting | 12 | documentation, and that the name of the above listed copyright holder(s) not | 13 | be used in advertising or publicity pertaining to distribution of the | 14 | software without specific, written prior permission. | 15 | | 16 | THE ABOVE LISTED COPYRIGHT HOLDER(S) DISCLAIM ALL WARRANTIES WITH REGARD TO | 17 | THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FIT- | 18 | NESS, IN NO EVENT SHALL THE ABOVE LISTED COPYRIGHT HOLDER(S) BE LIABLE FOR | 19 | ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RE- | 20 | SULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, | 21 | NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH | 22 | THE USE OR PERFORMANCE OF THIS SOFTWARE. | 23 +-----------------------------------------------------------------------------*/ 24 25 /*************************************************************************** 26 * Module m_item_vis * 27 * Tell if menu item is visible * 28 ***************************************************************************/ 29 30 #include "menu.priv.h" 31 32 MODULE_ID("Id: m_item_vis.c,v 1.7 1997/10/21 08:44:31 juergen Exp $") 33 34 /*--------------------------------------------------------------------------- 35 | Facility : libnmenu 36 | Function : bool item_visible(const ITEM *item) 37 | 38 | Description : A item is visible if it currently appears in the 39 | subwindow of a posted menu. 40 | 41 | Return Values : TRUE if visible 42 | FALSE if invisible 43 +--------------------------------------------------------------------------*/ 44 bool item_visible(const ITEM * item) 45 { 46 MENU *menu; 47 48 if ( item && 49 (menu=item->imenu) && 50 (menu->status & _POSTED) && 51 ( (menu->toprow + menu->arows) > (item->y) ) && 52 ( item->y >= menu->toprow) ) 53 return TRUE; 54 else 55 return FALSE; 56 } 57 58 /* m_item_vis.c ends here */ 59