1 /****************************************************************************
2 * Copyright (c) 1998,2000 Free Software Foundation, Inc. *
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5 * copy of this software and associated documentation files (the *
6 * "Software"), to deal in the Software without restriction, including *
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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 *
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27 ****************************************************************************/
29 /****************************************************************************
30 * Author: Juergen Pfeifer, 1995,1997 *
31 ****************************************************************************/
33 /***************************************************************************
35 * Set and get top menus item *
36 ***************************************************************************/
38 #include "menu.priv.h"
40 MODULE_ID("$Id: m_item_top.c,v 1.8 2003/11/08 20:51:53 tom Exp $")
42 /*---------------------------------------------------------------------------
44 | Function : int set_top_row(MENU *menu, int row)
46 | Description : Makes the specified row the top row in the menu
48 | Return Values : E_OK - success
49 | E_BAD_ARGUMENT - not a menu pointer or invalid row
50 | E_NOT_CONNECTED - there are no items for the menu
51 +--------------------------------------------------------------------------*/
53 set_top_row (MENU * menu, int row)
59 if ( menu->status & _IN_DRIVER )
61 if (menu->items == (ITEM **)0)
62 RETURN(E_NOT_CONNECTED);
64 if ((row<0) || (row > (menu->rows - menu->arows)))
65 RETURN(E_BAD_ARGUMENT);
68 RETURN(E_BAD_ARGUMENT);
70 if (row != menu->toprow)
72 if (menu->status & _LINK_NEEDED)
75 item = menu->items[ (menu->opt&O_ROWMAJOR) ? (row*menu->cols) : row ];
76 assert(menu->pattern);
78 _nc_New_TopRow_and_CurrentItem(menu, row, item);
84 /*---------------------------------------------------------------------------
86 | Function : int top_row(const MENU *)
88 | Description : Return the top row of the menu
90 | Return Values : The row number or ERR if there is no row
91 +--------------------------------------------------------------------------*/
93 top_row (const MENU * menu)
95 if (menu && menu->items && *(menu->items))
97 assert( (menu->toprow>=0) && (menu->toprow < menu->rows) );
104 /* m_item_top.c ends here */