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1/* $OpenBSD: m_cursor.c,v 1.9 2023/10/17 09:52:10 nicm Exp $ */
2
3/****************************************************************************
4 * Copyright 2020,2021 Thomas E. Dickey *
5 * Copyright 1998-2009,2010 Free Software Foundation, Inc. *
6 * *
7 * Permission is hereby granted, free of charge, to any person obtaining a *
8 * copy of this software and associated documentation files (the *
9 * "Software"), to deal in the Software without restriction, including *
10 * without limitation the rights to use, copy, modify, merge, publish, *
11 * distribute, distribute with modifications, sublicense, and/or sell *
12 * copies of the Software, and to permit persons to whom the Software is *
13 * furnished to do so, subject to the following conditions: *
14 * *
15 * The above copyright notice and this permission notice shall be included *
16 * in all copies or substantial portions of the Software. *
17 * *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
21 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
22 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
23 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
24 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
25 * *
26 * Except as contained in this notice, the name(s) of the above copyright *
27 * holders shall not be used in advertising or otherwise to promote the *
28 * sale, use or other dealings in this Software without prior written *
29 * authorization. *
30 ****************************************************************************/
31
32/****************************************************************************
33 * Author: Juergen Pfeifer, 1995,1997 *
34 ****************************************************************************/
35
36/***************************************************************************
37* Module m_cursor *
38* Correctly position a menu's cursor *
39***************************************************************************/
40
41#include "menu.priv.h"
42
43MODULE_ID("$Id: m_cursor.c,v 1.9 2023/10/17 09:52:10 nicm Exp $")
44
45/*---------------------------------------------------------------------------
46| Facility : libnmenu
47| Function : _nc_menu_cursor_pos
48|
49| Description : Return position of logical cursor to current item
50|
51| Return Values : E_OK - success
52| E_BAD_ARGUMENT - invalid menu
53| E_NOT_POSTED - Menu is not posted
54+--------------------------------------------------------------------------*/
55MENU_EXPORT(int)
56_nc_menu_cursor_pos(const MENU *menu, const ITEM *item, int *pY, int *pX)
57{
58 if (!menu || !pX || !pY)
59 return (E_BAD_ARGUMENT);
60 else
61 {
62 if ((ITEM *)0 == item)
63 item = menu->curitem;
64 assert(item != (ITEM *)0);
65
66 if (!(menu->status & _POSTED))
67 return (E_NOT_POSTED);
68
69 *pX = item->x * (menu->spc_cols + menu->itemlen);
70 *pY = (item->y - menu->toprow) * menu->spc_rows;
71 }
72 return (E_OK);
73}
74
75/*---------------------------------------------------------------------------
76| Facility : libnmenu
77| Function : pos_menu_cursor
78|
79| Description : Position logical cursor to current item in menu
80|
81| Return Values : E_OK - success
82| E_BAD_ARGUMENT - invalid menu
83| E_NOT_POSTED - Menu is not posted
84+--------------------------------------------------------------------------*/
85MENU_EXPORT(int)
86pos_menu_cursor(const MENU *menu)
87{
88 int x = 0, y = 0;
89 int err = _nc_menu_cursor_pos(menu, (ITEM *)0, &y, &x);
90
91 T((T_CALLED("pos_menu_cursor(%p)"), (const void *)menu));
92
93 if (E_OK == err)
94 {
95 WINDOW *win = Get_Menu_UserWin(menu);
96 WINDOW *sub = menu->usersub ? menu->usersub : win;
97
98 assert(win && sub);
99
100 if ((menu->opt & O_SHOWMATCH) && (menu->pindex > 0))
101 x += (menu->pindex + menu->marklen - 1);
102
103 wmove(sub, y, x);
104
105 if (win != sub)
106 {
107 wcursyncup(sub);
108 wsyncup(sub);
109 untouchwin(sub);
110 }
111 }
112 RETURN(err);
113}
114
115/* m_cursor.c ends here */