xref: /openbsd/lib/libmenu/menu.priv.h (revision c7ef0cfc)
1 /* $OpenBSD: menu.priv.h,v 1.9 2023/10/17 09:52:10 nicm Exp $ */
2 
3 /****************************************************************************
4  * Copyright 2020 Thomas E. Dickey                                          *
5  * Copyright 1998-2016,2017 Free Software Foundation, Inc.                  *
6  *                                                                          *
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8  * copy of this software and associated documentation files (the            *
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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.   *
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26  * Except as contained in this notice, the name(s) of the above copyright   *
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31 
32 /****************************************************************************
33  *   Author:  Juergen Pfeifer, 1995,1997                                    *
34  ****************************************************************************/
35 
36 /* $Id: menu.priv.h,v 1.9 2023/10/17 09:52:10 nicm Exp $ */
37 
38 /***************************************************************************
39 * Module menu.priv.h                                                       *
40 * Top level private header file for all libnmenu modules                   *
41 ***************************************************************************/
42 
43 #ifndef MENU_PRIV_H_incl
44 #define MENU_PRIV_H_incl 1
45 /* *INDENT-OFF* */
46 
47 #include "curses.priv.h"
48 
49 #define NCURSES_OPAQUE_MENU 0
50 
51 #include "mf_common.h"
52 #include "menu.h"
53 
54 /* Backspace code */
55 #define BS (8)
56 
57 extern MENU_EXPORT_VAR(ITEM) _nc_Default_Item;
58 extern MENU_EXPORT_VAR(MENU) _nc_Default_Menu;
59 
60 /* Normalize item to default if none was given */
61 #define Normalize_Item( item ) ((item)=(item)?(item):&_nc_Default_Item)
62 
63 /* Normalize menu to default if none was given */
64 #define Normalize_Menu( menu ) ((menu)=(menu)?(menu):&_nc_Default_Menu)
65 
66 #define Get_Menu_Screen( menu ) (menu->userwin ? \
67 				 _nc_screen_of(menu->userwin) : CURRENT_SCREEN)
68 
69 /* Get the user defined (framing) window of the menu */
70 #define Get_Menu_UserWin(menu) ((menu)->userwin ? \
71     (menu)->userwin : CURRENT_SCREEN->_stdscr)
72 
73 /* Normalize menu window */
74 #define Get_Menu_Window(  menu ) \
75    ((menu)->usersub  ? (menu)->usersub  : Get_Menu_UserWin(menu))
76 
77 /* menu specific status flags */
78 #define _LINK_NEEDED    (0x04)
79 #define _MARK_ALLOCATED (0x08)
80 
81 #define ALL_MENU_OPTS (                 \
82 		       O_ONEVALUE     | \
83 		       O_SHOWDESC     | \
84 		       O_ROWMAJOR     | \
85 		       O_IGNORECASE   | \
86 		       O_SHOWMATCH    | \
87 		       O_NONCYCLIC    | \
88 		       O_MOUSE_MENU   )
89 
90 #define ALL_ITEM_OPTS (O_SELECTABLE)
91 
92 /* Move to the window position of an item and draw it */
93 #define Move_And_Post_Item(menu,item) \
94   {wmove((menu)->win,(menu)->spc_rows*(item)->y,((menu)->itemlen+(menu)->spc_cols)*(item)->x);\
95    _nc_Post_Item((menu),(item));}
96 
97 #define Move_To_Current_Item(menu,item) \
98   if ( (item) != (menu)->curitem)\
99     {\
100       Move_And_Post_Item(menu,item);\
101       Move_And_Post_Item(menu,(menu)->curitem);\
102     }
103 
104 /* This macro ensures, that the item becomes visible, if possible with the
105    specified row as the top row of the window. If this is not possible,
106    the top row will be adjusted and the value is stored in the row argument.
107 */
108 #define Adjust_Current_Item(menu,row,item) \
109   { if ((item)->y < row) \
110       row = (short) (item)->y; \
111     if ( (item)->y >= (row + (menu)->arows) ) \
112       row = (short) (( (item)->y < ((menu)->rows - row) ) \
113                      ? (item)->y \
114 		     : (menu)->rows - (menu)->arows); \
115     _nc_New_TopRow_and_CurrentItem(menu,row,item); }
116 
117 /* Reset the match pattern buffer */
118 #define Reset_Pattern(menu) \
119   { (menu)->pindex = 0; \
120     (menu)->pattern[0] = '\0'; }
121 
122 #define UChar(c)	((unsigned char)(c))
123 
124 /* Internal functions. */
125 extern MENU_EXPORT(void) _nc_Draw_Menu (const MENU *);
126 extern MENU_EXPORT(void) _nc_Show_Menu (const MENU *);
127 extern MENU_EXPORT(void) _nc_Calculate_Item_Length_and_Width (MENU *);
128 extern MENU_EXPORT(int)  _nc_Calculate_Text_Width(const TEXT *);
129 extern MENU_EXPORT(void) _nc_Post_Item (const MENU *, const ITEM *);
130 extern MENU_EXPORT(bool) _nc_Connect_Items (MENU *, ITEM **);
131 extern MENU_EXPORT(void) _nc_Disconnect_Items (MENU *);
132 extern MENU_EXPORT(void) _nc_New_TopRow_and_CurrentItem (MENU *,int, ITEM *);
133 extern MENU_EXPORT(void) _nc_Link_Items (MENU *);
134 extern MENU_EXPORT(int)  _nc_Match_Next_Character_In_Item_Name (MENU*,int,ITEM**);
135 extern MENU_EXPORT(int)  _nc_menu_cursor_pos (const MENU* menu, const ITEM* item,
136 				int* pY, int* pX);
137 
138 #ifdef TRACE
139 
140 #define returnItem(code)	TRACE_RETURN1(code,item)
141 #define returnItemPtr(code)	TRACE_RETURN1(code,item_ptr)
142 #define returnItemOpts(code)	TRACE_RETURN1(code,item_opts)
143 #define returnMenu(code)	TRACE_RETURN1(code,menu)
144 #define returnMenuHook(code)	TRACE_RETURN1(code,menu_hook)
145 #define returnMenuOpts(code)	TRACE_RETURN1(code,menu_opts)
146 
147 extern MENU_EXPORT(ITEM *)	    _nc_retrace_item (ITEM *);
148 extern MENU_EXPORT(ITEM **)	    _nc_retrace_item_ptr (ITEM **);
149 extern MENU_EXPORT(Item_Options) _nc_retrace_item_opts (Item_Options);
150 extern MENU_EXPORT(MENU *)	    _nc_retrace_menu (MENU *);
151 extern MENU_EXPORT(Menu_Hook)    _nc_retrace_menu_hook (Menu_Hook);
152 extern MENU_EXPORT(Menu_Options) _nc_retrace_menu_opts (Menu_Options);
153 
154 #else /* !TRACE */
155 
156 #define returnItem(code)	return code
157 #define returnItemPtr(code)	return code
158 #define returnItemOpts(code)	return code
159 #define returnMenu(code)	return code
160 #define returnMenuHook(code)	return code
161 #define returnMenuOpts(code)	return code
162 
163 #endif /* TRACE/!TRACE */
164 /* *INDENT-ON* */
165 
166 #endif /* MENU_PRIV_H_incl */
167