1/****************************************************************************
2 * Copyright 2020 Thomas E. Dickey                                          *
3 * Copyright 1998-2009,2010 Free Software Foundation, Inc.                  *
4 *                                                                          *
5 * Permission is hereby granted, free of charge, to any person obtaining a  *
6 * copy of this software and associated documentation files (the            *
7 * "Software"), to deal in the Software without restriction, including      *
8 * without limitation the rights to use, copy, modify, merge, publish,      *
9 * distribute, distribute with modifications, sublicense, and/or sell       *
10 * copies of the Software, and to permit persons to whom the Software is    *
11 * furnished to do so, subject to the following conditions:                 *
12 *                                                                          *
13 * The above copyright notice and this permission notice shall be included  *
14 * in all copies or substantial portions of the Software.                   *
15 *                                                                          *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
17 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
18 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
19 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
20 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
21 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *
22 * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
23 *                                                                          *
24 * Except as contained in this notice, the name(s) of the above copyright   *
25 * holders shall not be used in advertising or otherwise to promote the     *
26 * sale, use or other dealings in this Software without prior written       *
27 * authorization.                                                           *
28 ****************************************************************************/
29
30/****************************************************************************
31 *   Author:  Juergen Pfeifer, 1995,1997                                    *
32 ****************************************************************************/
33
34/***************************************************************************
35* Module m_cursor                                                          *
36* Correctly position a menu's cursor                                       *
37***************************************************************************/
38
39#include "menu.priv.h"
40
41MODULE_ID("$Id: m_cursor.c,v 1.23 2020/02/02 23:34:34 tom Exp $")
42
43/*---------------------------------------------------------------------------
44|   Facility      :  libnmenu
45|   Function      :  _nc_menu_cursor_pos
46|
47|   Description   :  Return position of logical cursor to current item
48|
49|   Return Values :  E_OK            - success
50|                    E_BAD_ARGUMENT  - invalid menu
51|                    E_NOT_POSTED    - Menu is not posted
52+--------------------------------------------------------------------------*/
53NCURSES_EXPORT(int)
54_nc_menu_cursor_pos(const MENU * menu, const ITEM * item, int *pY, int *pX)
55{
56  if (!menu || !pX || !pY)
57    return (E_BAD_ARGUMENT);
58  else
59    {
60      if ((ITEM *) 0 == item)
61	item = menu->curitem;
62      assert(item != (ITEM *) 0);
63
64      if (!(menu->status & _POSTED))
65	return (E_NOT_POSTED);
66
67      *pX = item->x * (menu->spc_cols + menu->itemlen);
68      *pY = (item->y - menu->toprow) * menu->spc_rows;
69    }
70  return (E_OK);
71}
72
73/*---------------------------------------------------------------------------
74|   Facility      :  libnmenu
75|   Function      :  pos_menu_cursor
76|
77|   Description   :  Position logical cursor to current item in menu
78|
79|   Return Values :  E_OK            - success
80|                    E_BAD_ARGUMENT  - invalid menu
81|                    E_NOT_POSTED    - Menu is not posted
82+--------------------------------------------------------------------------*/
83NCURSES_EXPORT(int)
84pos_menu_cursor(const MENU * menu)
85{
86  WINDOW *win, *sub;
87  int x = 0, y = 0;
88  int err = _nc_menu_cursor_pos(menu, (ITEM *) 0, &y, &x);
89
90  T((T_CALLED("pos_menu_cursor(%p)"), (const void *)menu));
91
92  if (E_OK == err)
93    {
94      win = Get_Menu_UserWin(menu);
95      sub = menu->usersub ? menu->usersub : win;
96      assert(win && sub);
97
98      if ((menu->opt & O_SHOWMATCH) && (menu->pindex > 0))
99	x += (menu->pindex + menu->marklen - 1);
100
101      wmove(sub, y, x);
102
103      if (win != sub)
104	{
105	  wcursyncup(sub);
106	  wsyncup(sub);
107	  untouchwin(sub);
108	}
109    }
110  RETURN(err);
111}
112
113/* m_cursor.c ends here */
114