1/****************************************************************************
2 * Copyright 2020 Thomas E. Dickey                                          *
3 * Copyright 1998-2016,2017 Free Software Foundation, Inc.                  *
4 *                                                                          *
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12 *                                                                          *
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15 *                                                                          *
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28 ****************************************************************************/
29
30/****************************************************************************
31 *   Author:  Juergen Pfeifer, 1995,1997                                    *
32 ****************************************************************************/
33
34/* $Id: menu.priv.h,v 1.28 2020/02/02 23:34:34 tom Exp $ */
35
36/***************************************************************************
37* Module menu.priv.h                                                       *
38* Top level private header file for all libnmenu modules                   *
39***************************************************************************/
40
41#ifndef MENU_PRIV_H_incl
42#define MENU_PRIV_H_incl 1
43/* *INDENT-OFF* */
44
45#include "curses.priv.h"
46
47#define NCURSES_OPAQUE_MENU 0
48
49#include "mf_common.h"
50#include "menu.h"
51
52/* Backspace code */
53#define BS (8)
54
55extern NCURSES_EXPORT_VAR(ITEM) _nc_Default_Item;
56extern NCURSES_EXPORT_VAR(MENU) _nc_Default_Menu;
57
58/* Normalize item to default if none was given */
59#define Normalize_Item( item ) ((item)=(item)?(item):&_nc_Default_Item)
60
61/* Normalize menu to default if none was given */
62#define Normalize_Menu( menu ) ((menu)=(menu)?(menu):&_nc_Default_Menu)
63
64#define Get_Menu_Screen( menu ) (menu->userwin ? \
65				 _nc_screen_of(menu->userwin) : CURRENT_SCREEN)
66
67/* Get the user defined (framing) window of the menu */
68#define Get_Menu_UserWin(menu) ((menu)->userwin ? \
69    (menu)->userwin : CURRENT_SCREEN->_stdscr)
70
71/* Normalize menu window */
72#define Get_Menu_Window(  menu ) \
73   ((menu)->usersub  ? (menu)->usersub  : Get_Menu_UserWin(menu))
74
75/* menu specific status flags */
76#define _LINK_NEEDED    (0x04)
77#define _MARK_ALLOCATED (0x08)
78
79#define ALL_MENU_OPTS (                 \
80		       O_ONEVALUE     | \
81		       O_SHOWDESC     | \
82		       O_ROWMAJOR     | \
83		       O_IGNORECASE   | \
84		       O_SHOWMATCH    | \
85		       O_NONCYCLIC    | \
86		       O_MOUSE_MENU   )
87
88#define ALL_ITEM_OPTS (O_SELECTABLE)
89
90/* Move to the window position of an item and draw it */
91#define Move_And_Post_Item(menu,item) \
92  {wmove((menu)->win,(menu)->spc_rows*(item)->y,((menu)->itemlen+(menu)->spc_cols)*(item)->x);\
93   _nc_Post_Item((menu),(item));}
94
95#define Move_To_Current_Item(menu,item) \
96  if ( (item) != (menu)->curitem)\
97    {\
98      Move_And_Post_Item(menu,item);\
99      Move_And_Post_Item(menu,(menu)->curitem);\
100    }
101
102/* This macro ensures, that the item becomes visible, if possible with the
103   specified row as the top row of the window. If this is not possible,
104   the top row will be adjusted and the value is stored in the row argument.
105*/
106#define Adjust_Current_Item(menu,row,item) \
107  { if ((item)->y < row) \
108      row = (short) (item)->y; \
109    if ( (item)->y >= (row + (menu)->arows) ) \
110      row = (short) (( (item)->y < ((menu)->rows - row) ) \
111                     ? (item)->y \
112		     : (menu)->rows - (menu)->arows); \
113    _nc_New_TopRow_and_CurrentItem(menu,row,item); }
114
115/* Reset the match pattern buffer */
116#define Reset_Pattern(menu) \
117  { (menu)->pindex = 0; \
118    (menu)->pattern[0] = '\0'; }
119
120#define UChar(c)	((unsigned char)(c))
121
122/* Internal functions. */
123extern NCURSES_EXPORT(void) _nc_Draw_Menu (const MENU *);
124extern NCURSES_EXPORT(void) _nc_Show_Menu (const MENU *);
125extern NCURSES_EXPORT(void) _nc_Calculate_Item_Length_and_Width (MENU *);
126extern NCURSES_EXPORT(int)  _nc_Calculate_Text_Width(const TEXT *);
127extern NCURSES_EXPORT(void) _nc_Post_Item (const MENU *, const ITEM *);
128extern NCURSES_EXPORT(bool) _nc_Connect_Items (MENU *, ITEM **);
129extern NCURSES_EXPORT(void) _nc_Disconnect_Items (MENU *);
130extern NCURSES_EXPORT(void) _nc_New_TopRow_and_CurrentItem (MENU *,int, ITEM *);
131extern NCURSES_EXPORT(void) _nc_Link_Items (MENU *);
132extern NCURSES_EXPORT(int)  _nc_Match_Next_Character_In_Item_Name (MENU*,int,ITEM**);
133extern NCURSES_EXPORT(int)  _nc_menu_cursor_pos (const MENU* menu, const ITEM* item,
134				int* pY, int* pX);
135
136#ifdef TRACE
137
138#define returnItem(code)	TRACE_RETURN1(code,item)
139#define returnItemPtr(code)	TRACE_RETURN1(code,item_ptr)
140#define returnItemOpts(code)	TRACE_RETURN1(code,item_opts)
141#define returnMenu(code)	TRACE_RETURN1(code,menu)
142#define returnMenuHook(code)	TRACE_RETURN1(code,menu_hook)
143#define returnMenuOpts(code)	TRACE_RETURN1(code,menu_opts)
144
145extern NCURSES_EXPORT(ITEM *)	    _nc_retrace_item (ITEM *);
146extern NCURSES_EXPORT(ITEM **)	    _nc_retrace_item_ptr (ITEM **);
147extern NCURSES_EXPORT(Item_Options) _nc_retrace_item_opts (Item_Options);
148extern NCURSES_EXPORT(MENU *)	    _nc_retrace_menu (MENU *);
149extern NCURSES_EXPORT(Menu_Hook)    _nc_retrace_menu_hook (Menu_Hook);
150extern NCURSES_EXPORT(Menu_Options) _nc_retrace_menu_opts (Menu_Options);
151
152#else /* !TRACE */
153
154#define returnItem(code)	return code
155#define returnItemPtr(code)	return code
156#define returnItemOpts(code)	return code
157#define returnMenu(code)	return code
158#define returnMenuHook(code)	return code
159#define returnMenuOpts(code)	return code
160
161#endif /* TRACE/!TRACE */
162/* *INDENT-ON* */
163
164#endif /* MENU_PRIV_H_incl */
165