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/* $OpenBSD: m_item_top.c,v 1.5 2010/01/12 23:22:08 nicm Exp $ */ |
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/**************************************************************************** |
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* Copyright (c) 1998-2003,2004 Free Software Foundation, Inc. * |
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* * |
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* Permission is hereby granted, free of charge, to any person obtaining a * |
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* copy of this software and associated documentation files (the * |
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* "Software"), to deal in the Software without restriction, including * |
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* without limitation the rights to use, copy, modify, merge, publish, * |
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* distribute, distribute with modifications, sublicense, and/or sell * |
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* copies of the Software, and to permit persons to whom the Software is * |
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* furnished to do so, subject to the following conditions: * |
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* * |
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* The above copyright notice and this permission notice shall be included * |
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* in all copies or substantial portions of the Software. * |
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* * |
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * |
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * |
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * |
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* IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * |
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* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * |
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* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * |
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* THE USE OR OTHER DEALINGS IN THE SOFTWARE. * |
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* * |
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* Except as contained in this notice, the name(s) of the above copyright * |
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* holders shall not be used in advertising or otherwise to promote the * |
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* sale, use or other dealings in this Software without prior written * |
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* authorization. * |
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****************************************************************************/ |
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/**************************************************************************** |
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* Author: Juergen Pfeifer, 1995,1997 * |
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****************************************************************************/ |
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/*************************************************************************** |
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* Module m_item_top * |
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* Set and get top menus item * |
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***************************************************************************/ |
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#include "menu.priv.h" |
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MODULE_ID("$Id: m_item_top.c,v 1.5 2010/01/12 23:22:08 nicm Exp $") |
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/*--------------------------------------------------------------------------- |
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| Facility : libnmenu |
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| Function : int set_top_row(MENU *menu, int row) |
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| Description : Makes the specified row the top row in the menu |
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| |
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| Return Values : E_OK - success |
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| E_BAD_ARGUMENT - not a menu pointer or invalid row |
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| E_NOT_CONNECTED - there are no items for the menu |
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+--------------------------------------------------------------------------*/ |
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NCURSES_EXPORT(int) |
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set_top_row(MENU * menu, int row) |
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{ |
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ITEM *item; |
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T((T_CALLED("set_top_row(%p,%d)"), menu, row)); |
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if (menu) |
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{ |
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if (menu->status & _IN_DRIVER) |
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RETURN(E_BAD_STATE); |
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if (menu->items == (ITEM **) 0) |
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RETURN(E_NOT_CONNECTED); |
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if ((row < 0) || (row > (menu->rows - menu->arows))) |
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RETURN(E_BAD_ARGUMENT); |
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} |
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else |
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RETURN(E_BAD_ARGUMENT); |
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if (row != menu->toprow) |
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{ |
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if (menu->status & _LINK_NEEDED) |
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_nc_Link_Items(menu); |
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item = menu->items[(menu->opt & O_ROWMAJOR) ? (row * menu->cols) : row]; |
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assert(menu->pattern); |
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Reset_Pattern(menu); |
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_nc_New_TopRow_and_CurrentItem(menu, row, item); |
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} |
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RETURN(E_OK); |
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} |
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/*--------------------------------------------------------------------------- |
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| Facility : libnmenu |
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| Function : int top_row(const MENU *) |
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| Description : Return the top row of the menu |
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| Return Values : The row number or ERR if there is no row |
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+--------------------------------------------------------------------------*/ |
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NCURSES_EXPORT(int) |
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top_row(const MENU * menu) |
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{ |
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T((T_CALLED("top_row(%p)"), menu)); |
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if (menu && menu->items && *(menu->items)) |
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{ |
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assert((menu->toprow >= 0) && (menu->toprow < menu->rows)); |
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returnCode(menu->toprow); |
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} |
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else |
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returnCode(ERR); |
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} |
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/* m_item_top.c ends here */ |