diff options
Diffstat (limited to 'lib/libmenu/m_item_top.c')
| -rw-r--r-- | lib/libmenu/m_item_top.c | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/lib/libmenu/m_item_top.c b/lib/libmenu/m_item_top.c new file mode 100644 index 00000000000..e27fbed3824 --- /dev/null +++ b/lib/libmenu/m_item_top.c @@ -0,0 +1,94 @@ +/* $OpenBSD: m_item_top.c,v 1.1 1997/12/03 05:31:21 millert Exp $ */ + +/*-----------------------------------------------------------------------------+ +| The ncurses menu library is Copyright (C) 1995-1997 | +| by Juergen Pfeifer <Juergen.Pfeifer@T-Online.de> | +| All Rights Reserved. | +| | +| Permission to use, copy, modify, and distribute this software and its | +| documentation for any purpose and without fee is hereby granted, provided | +| that the above copyright notice appear in all copies and that both that | +| copyright notice and this permission notice appear in supporting | +| documentation, and that the name of the above listed copyright holder(s) not | +| be used in advertising or publicity pertaining to distribution of the | +| software without specific, written prior permission. | +| | +| THE ABOVE LISTED COPYRIGHT HOLDER(S) DISCLAIM ALL WARRANTIES WITH REGARD TO | +| THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FIT- | +| NESS, IN NO EVENT SHALL THE ABOVE LISTED COPYRIGHT HOLDER(S) BE LIABLE FOR | +| ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RE- | +| SULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, | +| NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH | +| THE USE OR PERFORMANCE OF THIS SOFTWARE. | ++-----------------------------------------------------------------------------*/ + +/*************************************************************************** +* Module m_item_top * +* Set and get top menus item * +***************************************************************************/ + +#include "menu.priv.h" + +MODULE_ID("Id: m_item_top.c,v 1.1 1997/10/21 08:44:31 juergen Exp $") + +/*--------------------------------------------------------------------------- +| Facility : libnmenu +| Function : int set_top_row(MENU *menu, int row) +| +| Description : Makes the speified row the top row in the menu +| +| Return Values : E_OK - success +| E_BAD_ARGUMENT - not a menu pointer or invalid row +| E_NOT_CONNECTED - there are no items for the menu ++--------------------------------------------------------------------------*/ +int set_top_row(MENU * menu, int row) +{ + ITEM *item; + + if (menu) + { + if ( menu->status & _IN_DRIVER ) + RETURN(E_BAD_STATE); + if (menu->items == (ITEM **)0) + RETURN(E_NOT_CONNECTED); + + if ((row<0) || (row > (menu->rows - menu->arows))) + RETURN(E_BAD_ARGUMENT); + } + else + RETURN(E_BAD_ARGUMENT); + + if (row != menu->toprow) + { + if (menu->status & _LINK_NEEDED) + _nc_Link_Items(menu); + + item = menu->items[ (menu->opt&O_ROWMAJOR) ? (row*menu->cols) : row ]; + assert(menu->pattern); + Reset_Pattern(menu); + _nc_New_TopRow_and_CurrentItem(menu, row, item); + } + + RETURN(E_OK); +} + +/*--------------------------------------------------------------------------- +| Facility : libnmenu +| Function : int top_row(const MENU *) +| +| Description : Return the top row of the menu +| +| Return Values : The row number or ERR if there is no row ++--------------------------------------------------------------------------*/ +int top_row(const MENU * menu) +{ + if (menu && menu->items && *(menu->items)) + { + assert( (menu->toprow>=0) && (menu->toprow < menu->rows) ); + return menu->toprow; + } + else + return(ERR); +} + +/* m_item_top.c ends here */ |