| Current Path : /usr/src/contrib/ncurses/menu/ |
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| Current File : //usr/src/contrib/ncurses/menu/m_cursor.c |
/****************************************************************************
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/****************************************************************************
* Author: Juergen Pfeifer, 1995,1997 *
****************************************************************************/
/***************************************************************************
* Module m_cursor *
* Correctly position a menu's cursor *
***************************************************************************/
#include "menu.priv.h"
MODULE_ID("$Id: m_cursor.c,v 1.20 2005/10/22 23:03:32 tom Exp $")
/*---------------------------------------------------------------------------
| Facility : libnmenu
| Function : _nc_menu_cursor_pos
|
| Description : Return position of logical cursor to current item
|
| Return Values : E_OK - success
| E_BAD_ARGUMENT - invalid menu
| E_NOT_POSTED - Menu is not posted
+--------------------------------------------------------------------------*/
NCURSES_EXPORT(int)
_nc_menu_cursor_pos(const MENU * menu, const ITEM * item, int *pY, int *pX)
{
if (!menu || !pX || !pY)
return (E_BAD_ARGUMENT);
else
{
if ((ITEM *) 0 == item)
item = menu->curitem;
assert(item != (ITEM *) 0);
if (!(menu->status & _POSTED))
return (E_NOT_POSTED);
*pX = item->x * (menu->spc_cols + menu->itemlen);
*pY = (item->y - menu->toprow) * menu->spc_rows;
}
return (E_OK);
}
/*---------------------------------------------------------------------------
| Facility : libnmenu
| Function : pos_menu_cursor
|
| Description : Position logical cursor to current item in menu
|
| Return Values : E_OK - success
| E_BAD_ARGUMENT - invalid menu
| E_NOT_POSTED - Menu is not posted
+--------------------------------------------------------------------------*/
NCURSES_EXPORT(int)
pos_menu_cursor(const MENU * menu)
{
WINDOW *win, *sub;
int x = 0, y = 0;
int err = _nc_menu_cursor_pos(menu, (ITEM *) 0, &y, &x);
T((T_CALLED("pos_menu_cursor(%p)"), menu));
if (E_OK == err)
{
win = menu->userwin ? menu->userwin : stdscr;
sub = menu->usersub ? menu->usersub : win;
assert(win && sub);
if ((menu->opt & O_SHOWMATCH) && (menu->pindex > 0))
x += (menu->pindex + menu->marklen - 1);
wmove(sub, y, x);
if (win != sub)
{
wcursyncup(sub);
wsyncup(sub);
untouchwin(sub);
}
}
RETURN(err);
}
/* m_cursor.c ends here */