Base version of ncurses-5.7 library
diff --git a/menu/m_item_vis.c b/menu/m_item_vis.c
new file mode 100644
index 0000000..f8fb97f
--- /dev/null
+++ b/menu/m_item_vis.c
@@ -0,0 +1,68 @@
+/****************************************************************************
+ * Copyright (c) 1998-2003,2004 Free Software Foundation, Inc. *
+ * *
+ * Permission is hereby granted, free of charge, to any person obtaining a *
+ * copy of this software and associated documentation files (the *
+ * "Software"), to deal in the Software without restriction, including *
+ * without limitation the rights to use, copy, modify, merge, publish, *
+ * distribute, distribute with modifications, sublicense, and/or sell *
+ * copies of the Software, and to permit persons to whom the Software is *
+ * furnished to do so, subject to the following conditions: *
+ * *
+ * The above copyright notice and this permission notice shall be included *
+ * in all copies or substantial portions of the Software. *
+ * *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
+ * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
+ * THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
+ * *
+ * Except as contained in this notice, the name(s) of the above copyright *
+ * holders shall not be used in advertising or otherwise to promote the *
+ * sale, use or other dealings in this Software without prior written *
+ * authorization. *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Author: Juergen Pfeifer, 1995,1997 *
+ ****************************************************************************/
+
+/***************************************************************************
+* Module m_item_vis *
+* Tell if menu item is visible *
+***************************************************************************/
+
+#include "menu.priv.h"
+
+MODULE_ID("$Id: m_item_vis.c,v 1.15 2004/12/25 21:40:09 tom Exp $")
+
+/*---------------------------------------------------------------------------
+| 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
++--------------------------------------------------------------------------*/
+NCURSES_EXPORT(bool)
+item_visible(const ITEM * item)
+{
+ MENU *menu;
+
+ T((T_CALLED("item_visible(%p)"), item));
+ if (item &&
+ (menu = item->imenu) &&
+ (menu->status & _POSTED) &&
+ ((menu->toprow + menu->arows) > (item->y)) &&
+ (item->y >= menu->toprow))
+ returnBool(TRUE);
+ else
+ returnBool(FALSE);
+}
+
+/* m_item_vis.c ends here */