1/****************************************************************************
2 * Copyright (c) 1998-2004,2005 Free Software Foundation, Inc.              *
3 *                                                                          *
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5 * copy of this software and associated documentation files (the            *
6 * "Software"), to deal in the Software without restriction, including      *
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9 * copies of the Software, and to permit persons to whom the Software is    *
10 * furnished to do so, subject to the following conditions:                 *
11 *                                                                          *
12 * The above copyright notice and this permission notice shall be included  *
13 * in all copies or substantial portions of the Software.                   *
14 *                                                                          *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
16 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
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21 * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
22 *                                                                          *
23 * Except as contained in this notice, the name(s) of the above copyright   *
24 * holders shall not be used in advertising or otherwise to promote the     *
25 * sale, use or other dealings in this Software without prior written       *
26 * authorization.                                                           *
27 ****************************************************************************/
28
29/****************************************************************************
30 *   Author:  Juergen Pfeifer, 1995,1997                                    *
31 ****************************************************************************/
32
33/* $Id: menu.priv.h,v 1.22 2005/01/16 01:02:23 tom Exp $ */
34
35/***************************************************************************
36* Module menu.priv.h                                                       *
37* Top level private header file for all libnmenu modules                   *
38***************************************************************************/
39
40#ifndef MENU_PRIV_H_incl
41#define MENU_PRIV_H_incl 1
42
43#include "curses.priv.h"
44#include "mf_common.h"
45#include "menu.h"
46
47/* Backspace code */
48#define BS (8)
49
50extern NCURSES_EXPORT_VAR(ITEM) _nc_Default_Item;
51extern NCURSES_EXPORT_VAR(MENU) _nc_Default_Menu;
52
53/* Normalize item to default if none was given */
54#define Normalize_Item( item ) ((item)=(item)?(item):&_nc_Default_Item)
55
56/* Normalize menu to default if none was given */
57#define Normalize_Menu( menu ) ((menu)=(menu)?(menu):&_nc_Default_Menu)
58
59/* Get the user defined (framing) window of the menu */
60#define Get_Menu_UserWin(menu) ((menu)->userwin ? (menu)->userwin : stdscr)
61
62/* Normalize menu window */
63#define Get_Menu_Window(  menu ) \
64   ((menu)->usersub  ? (menu)->usersub  : Get_Menu_UserWin(menu))
65
66/* menu specific status flags */
67#define _LINK_NEEDED    (0x04)
68#define _MARK_ALLOCATED (0x08)
69
70#define ALL_MENU_OPTS (                 \
71		       O_ONEVALUE     | \
72		       O_SHOWDESC     | \
73		       O_ROWMAJOR     | \
74		       O_IGNORECASE   | \
75		       O_SHOWMATCH    | \
76		       O_NONCYCLIC    )
77
78#define ALL_ITEM_OPTS (O_SELECTABLE)
79
80/* Move to the window position of an item and draw it */
81#define Move_And_Post_Item(menu,item) \
82  {wmove((menu)->win,(menu)->spc_rows*(item)->y,((menu)->itemlen+(menu)->spc_cols)*(item)->x);\
83   _nc_Post_Item((menu),(item));}
84
85#define Move_To_Current_Item(menu,item) \
86  if ( (item) != (menu)->curitem)\
87    {\
88      Move_And_Post_Item(menu,item);\
89      Move_And_Post_Item(menu,(menu)->curitem);\
90    }
91
92/* This macro ensures, that the item becomes visible, if possible with the
93   specified row as the top row of the window. If this is not possible,
94   the top row will be adjusted and the value is stored in the row argument.
95*/
96#define Adjust_Current_Item(menu,row,item) \
97  { if ((item)->y < row) \
98      row = (item)->y;\
99    if ( (item)->y >= (row + (menu)->arows) )\
100      row = ( (item)->y < ((menu)->rows - row) ) ? \
101            (item)->y : (menu)->rows - (menu)->arows;\
102    _nc_New_TopRow_and_CurrentItem(menu,row,item); }
103
104/* Reset the match pattern buffer */
105#define Reset_Pattern(menu) \
106  { (menu)->pindex = 0; \
107    (menu)->pattern[0] = '\0'; }
108
109#define UChar(c)	((unsigned char)(c))
110
111/* Internal functions. */
112extern NCURSES_EXPORT(void) _nc_Draw_Menu (const MENU *);
113extern NCURSES_EXPORT(void) _nc_Show_Menu (const MENU *);
114extern NCURSES_EXPORT(void) _nc_Calculate_Item_Length_and_Width (MENU *);
115extern NCURSES_EXPORT(int)  _nc_Calculate_Text_Width(const TEXT *);
116extern NCURSES_EXPORT(void) _nc_Post_Item (const MENU *, const ITEM *);
117extern NCURSES_EXPORT(bool) _nc_Connect_Items (MENU *, ITEM **);
118extern NCURSES_EXPORT(void) _nc_Disconnect_Items (MENU *);
119extern NCURSES_EXPORT(void) _nc_New_TopRow_and_CurrentItem (MENU *,int, ITEM *);
120extern NCURSES_EXPORT(void) _nc_Link_Items (MENU *);
121extern NCURSES_EXPORT(int)  _nc_Match_Next_Character_In_Item_Name (MENU*,int,ITEM**);
122extern NCURSES_EXPORT(int)  _nc_menu_cursor_pos (const MENU* menu, const ITEM* item,
123				int* pY, int* pX);
124
125#ifdef TRACE
126
127#define returnItem(code)	TRACE_RETURN(code,item)
128#define returnItemPtr(code)	TRACE_RETURN(code,item_ptr)
129#define returnItemOpts(code)	TRACE_RETURN(code,item_opts)
130#define returnMenu(code)	TRACE_RETURN(code,menu)
131#define returnMenuHook(code)	TRACE_RETURN(code,menu_hook)
132#define returnMenuOpts(code)	TRACE_RETURN(code,menu_opts)
133
134extern NCURSES_EXPORT(ITEM *)	    _nc_retrace_item (ITEM *);
135extern NCURSES_EXPORT(ITEM **)	    _nc_retrace_item_ptr (ITEM **);
136extern NCURSES_EXPORT(Item_Options) _nc_retrace_item_opts (Item_Options);
137extern NCURSES_EXPORT(MENU *)	    _nc_retrace_menu (MENU *);
138extern NCURSES_EXPORT(Menu_Hook)    _nc_retrace_menu_hook (Menu_Hook);
139extern NCURSES_EXPORT(Menu_Options) _nc_retrace_menu_opts (Menu_Options);
140
141#else /* !TRACE */
142
143#define returnItem(code)	return code
144#define returnItemPtr(code)	return code
145#define returnItemOpts(code)	return code
146#define returnMenu(code)	return code
147#define returnMenuHook(code)	return code
148#define returnMenuOpts(code)	return code
149
150#endif /* TRACE/!TRACE */
151
152#endif /* MENU_PRIV_H_incl */
153