1 /****************************************************************************
2 * Copyright (c) 1998,2000 Free Software Foundation, Inc. *
4 * Permission is hereby granted, free of charge, to any person obtaining a *
5 * copy of this software and associated documentation files (the *
6 * "Software"), to deal in the Software without restriction, including *
7 * without limitation the rights to use, copy, modify, merge, publish, *
8 * distribute, distribute with modifications, sublicense, and/or sell *
9 * copies of the Software, and to permit persons to whom the Software is *
10 * furnished to do so, subject to the following conditions: *
12 * The above copyright notice and this permission notice shall be included *
13 * in all copies or substantial portions of the Software. *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
16 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
18 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
19 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
20 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
21 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
23 * Except as contained in this notice, the name(s) of the above copyright *
24 * holders shall not be used in advertising or otherwise to promote the *
25 * sale, use or other dealings in this Software without prior written *
27 ****************************************************************************/
29 /****************************************************************************
30 * Author: Juergen Pfeifer, 1995,1997 *
31 * Contact: http://www.familiepfeifer.de/Contact.aspx?Lang=en *
32 ****************************************************************************/
34 /***************************************************************************
36 * Set and get top menus item *
37 ***************************************************************************/
39 #include "menu.priv.h"
41 MODULE_ID("$Id: m_item_top.c,v 1.6 2002/07/06 15:22:16 juergen Exp $")
43 /*---------------------------------------------------------------------------
45 | Function : int set_top_row(MENU *menu, int row)
47 | Description : Makes the speified row the top row in the menu
49 | Return Values : E_OK - success
50 | E_BAD_ARGUMENT - not a menu pointer or invalid row
51 | E_NOT_CONNECTED - there are no items for the menu
52 +--------------------------------------------------------------------------*/
54 set_top_row (MENU * menu, int row)
60 if ( menu->status & _IN_DRIVER )
62 if (menu->items == (ITEM **)0)
63 RETURN(E_NOT_CONNECTED);
65 if ((row<0) || (row > (menu->rows - menu->arows)))
66 RETURN(E_BAD_ARGUMENT);
69 RETURN(E_BAD_ARGUMENT);
71 if (row != menu->toprow)
73 if (menu->status & _LINK_NEEDED)
76 item = menu->items[ (menu->opt&O_ROWMAJOR) ? (row*menu->cols) : row ];
77 assert(menu->pattern);
79 _nc_New_TopRow_and_CurrentItem(menu, row, item);
85 /*---------------------------------------------------------------------------
87 | Function : int top_row(const MENU *)
89 | Description : Return the top row of the menu
91 | Return Values : The row number or ERR if there is no row
92 +--------------------------------------------------------------------------*/
94 top_row (const MENU * menu)
96 if (menu && menu->items && *(menu->items))
98 assert( (menu->toprow>=0) && (menu->toprow < menu->rows) );
105 /* m_item_top.c ends here */