1/****************************************************************************
2 * Copyright (c) 1998-2004,2005 Free Software Foundation, Inc.              *
3 *                                                                          *
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10 * furnished to do so, subject to the following conditions:                 *
11 *                                                                          *
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14 *                                                                          *
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27 ****************************************************************************/
28
29/****************************************************************************
30 *   Author:  Juergen Pfeifer, 1995,1997                                    *
31 ****************************************************************************/
32
33/***************************************************************************
34* Module m_cursor                                                          *
35* Correctly position a menu's cursor                                       *
36***************************************************************************/
37
38#include "menu.priv.h"
39
40MODULE_ID("$Id: m_cursor.c,v 1.20 2005/10/22 23:03:32 tom Exp $")
41
42/*---------------------------------------------------------------------------
43|   Facility      :  libnmenu
44|   Function      :  _nc_menu_cursor_pos
45|
46|   Description   :  Return position of logical cursor to current item
47|
48|   Return Values :  E_OK            - success
49|                    E_BAD_ARGUMENT  - invalid menu
50|                    E_NOT_POSTED    - Menu is not posted
51+--------------------------------------------------------------------------*/
52NCURSES_EXPORT(int)
53_nc_menu_cursor_pos(const MENU * menu, const ITEM * item, int *pY, int *pX)
54{
55  if (!menu || !pX || !pY)
56    return (E_BAD_ARGUMENT);
57  else
58    {
59      if ((ITEM *) 0 == item)
60	item = menu->curitem;
61      assert(item != (ITEM *) 0);
62
63      if (!(menu->status & _POSTED))
64	return (E_NOT_POSTED);
65
66      *pX = item->x * (menu->spc_cols + menu->itemlen);
67      *pY = (item->y - menu->toprow) * menu->spc_rows;
68    }
69  return (E_OK);
70}
71
72/*---------------------------------------------------------------------------
73|   Facility      :  libnmenu
74|   Function      :  pos_menu_cursor
75|
76|   Description   :  Position logical cursor to current item in menu
77|
78|   Return Values :  E_OK            - success
79|                    E_BAD_ARGUMENT  - invalid menu
80|                    E_NOT_POSTED    - Menu is not posted
81+--------------------------------------------------------------------------*/
82NCURSES_EXPORT(int)
83pos_menu_cursor(const MENU * menu)
84{
85  WINDOW *win, *sub;
86  int x = 0, y = 0;
87  int err = _nc_menu_cursor_pos(menu, (ITEM *) 0, &y, &x);
88
89  T((T_CALLED("pos_menu_cursor(%p)"), menu));
90
91  if (E_OK == err)
92    {
93      win = menu->userwin ? menu->userwin : stdscr;
94      sub = menu->usersub ? menu->usersub : win;
95      assert(win && sub);
96
97      if ((menu->opt & O_SHOWMATCH) && (menu->pindex > 0))
98	x += (menu->pindex + menu->marklen - 1);
99
100      wmove(sub, y, x);
101
102      if (win != sub)
103	{
104	  wcursyncup(sub);
105	  wsyncup(sub);
106	  untouchwin(sub);
107	}
108    }
109  RETURN(err);
110}
111
112/* m_cursor.c ends here */
113