diff options
Diffstat (limited to 'lib/libmenu/m_item_vis.c')
| -rw-r--r-- | lib/libmenu/m_item_vis.c | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/lib/libmenu/m_item_vis.c b/lib/libmenu/m_item_vis.c new file mode 100644 index 00000000000..36eeaeb6887 --- /dev/null +++ b/lib/libmenu/m_item_vis.c @@ -0,0 +1,53 @@ + +/*************************************************************************** +* COPYRIGHT NOTICE * +**************************************************************************** +* ncurses is copyright (C) 1992-1995 * +* Zeyd M. Ben-Halim * +* zmbenhal@netcom.com * +* Eric S. Raymond * +* esr@snark.thyrsus.com * +* * +* Permission is hereby granted to reproduce and distribute ncurses * +* by any means and for any fee, whether alone or as part of a * +* larger distribution, in source or in binary form, PROVIDED * +* this notice is included with any such distribution, and is not * +* removed from any of its header files. Mention of ncurses in any * +* applications linked with it is highly appreciated. * +* * +* ncurses comes AS IS with no warranty, implied or expressed. * +* * +***************************************************************************/ + +/*************************************************************************** +* Module menu_item_vis * +* Tell if menu item is visible * +***************************************************************************/ + +#include "menu.priv.h" + +/*--------------------------------------------------------------------------- +| Facility : libnmenu +| Function : bool item_visible(const ITEM *item) +| +| Description : A item is visible if it currently appears in the +| subwindow of a posted menu. +| +| Return Values : TRUE if visible +| FALSE if invisible ++--------------------------------------------------------------------------*/ +bool item_visible(const ITEM * item) +{ + MENU *menu; + + if ( item && + (menu=item->imenu) && + (menu->status & _POSTED) && + ( (menu->toprow + menu->height - 1) >= (item->y) ) && + ( item->y >= menu->toprow) ) + return TRUE; + else + return FALSE; +} + +/* m_item_vis.c ends here */ |