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 41 MODULE_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 +--------------------------------------------------------------------------*/ 53 NCURSES_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 +--------------------------------------------------------------------------*/ 83 NCURSES_EXPORT(int) 84 pos_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