release/src/router/libncurses/menu/menu.priv.h

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   2  * Copyright (c) 1998-2005,2009 Free Software Foundation, Inc.              *
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  28
  29 /****************************************************************************
  30  *   Author:  Juergen Pfeifer, 1995,1997                                    *
  31  ****************************************************************************/
  32
  33 /* $Id: menu.priv.h,v 1.23 2009/02/28 21:02:57 juergen 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
  50 extern NCURSES_EXPORT_VAR(ITEM) _nc_Default_Item;
  51 extern 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 #define Get_Menu_Screen( menu ) (menu->userwin ? \
  60                                  _nc_screen_of(menu->userwin) : CURRENT_SCREEN)
  61
  62 /* Get the user defined (framing) window of the menu */
  63 #define Get_Menu_UserWin(menu) ((menu)->userwin ? \
  64     (menu)->userwin : CURRENT_SCREEN->_stdscr)
  65
  66 /* Normalize menu window */
  67 #define Get_Menu_Window(  menu ) \
  68    ((menu)->usersub  ? (menu)->usersub  : Get_Menu_UserWin(menu))
  69
  70 /* menu specific status flags */
  71 #define _LINK_NEEDED    (0x04)
  72 #define _MARK_ALLOCATED (0x08)
  73
  74 #define ALL_MENU_OPTS (                 \
  75                        O_ONEVALUE     | \
  76                        O_SHOWDESC     | \
  77                        O_ROWMAJOR     | \
  78                        O_IGNORECASE   | \
  79                        O_SHOWMATCH    | \
  80                        O_NONCYCLIC    )
  81
  82 #define ALL_ITEM_OPTS (O_SELECTABLE)
  83
  84 /* Move to the window position of an item and draw it */
  85 #define Move_And_Post_Item(menu,item) \
  86   {wmove((menu)->win,(menu)->spc_rows*(item)->y,((menu)->itemlen+(menu)->spc_cols)*(item)->x);\
  87    _nc_Post_Item((menu),(item));}
  88
  89 #define Move_To_Current_Item(menu,item) \
  90   if ( (item) != (menu)->curitem)\
  91     {\
  92       Move_And_Post_Item(menu,item);\
  93       Move_And_Post_Item(menu,(menu)->curitem);\
  94     }
  95
  96 /* This macro ensures, that the item becomes visible, if possible with the
  97    specified row as the top row of the window. If this is not possible,
  98    the top row will be adjusted and the value is stored in the row argument.
  99 */
 100 #define Adjust_Current_Item(menu,row,item) \
 101   { if ((item)->y < row) \
 102       row = (item)->y;\
 103     if ( (item)->y >= (row + (menu)->arows) )\
 104       row = ( (item)->y < ((menu)->rows - row) ) ? \
 105             (item)->y : (menu)->rows - (menu)->arows;\
 106     _nc_New_TopRow_and_CurrentItem(menu,row,item); }
 107
 108 /* Reset the match pattern buffer */
 109 #define Reset_Pattern(menu) \
 110   { (menu)->pindex = 0; \
 111     (menu)->pattern[0] = '\0'; }
 112
 113 #define UChar(c)        ((unsigned char)(c))
 114
 115 /* Internal functions. */
 116 extern NCURSES_EXPORT(void) _nc_Draw_Menu (const MENU *);
 117 extern NCURSES_EXPORT(void) _nc_Show_Menu (const MENU *);
 118 extern NCURSES_EXPORT(void) _nc_Calculate_Item_Length_and_Width (MENU *);
 119 extern NCURSES_EXPORT(int)  _nc_Calculate_Text_Width(const TEXT *);
 120 extern NCURSES_EXPORT(void) _nc_Post_Item (const MENU *, const ITEM *);
 121 extern NCURSES_EXPORT(bool) _nc_Connect_Items (MENU *, ITEM **);
 122 extern NCURSES_EXPORT(void) _nc_Disconnect_Items (MENU *);
 123 extern NCURSES_EXPORT(void) _nc_New_TopRow_and_CurrentItem (MENU *,int, ITEM *);
 124 extern NCURSES_EXPORT(void) _nc_Link_Items (MENU *);
 125 extern NCURSES_EXPORT(int)  _nc_Match_Next_Character_In_Item_Name (MENU*,int,ITEM**);
 126 extern NCURSES_EXPORT(int)  _nc_menu_cursor_pos (const MENU* menu, const ITEM* item,
 127                                 int* pY, int* pX);
 128
 129 #ifdef TRACE
 130
 131 #define returnItem(code)        TRACE_RETURN(code,item)
 132 #define returnItemPtr(code)     TRACE_RETURN(code,item_ptr)
 133 #define returnItemOpts(code)    TRACE_RETURN(code,item_opts)
 134 #define returnMenu(code)        TRACE_RETURN(code,menu)
 135 #define returnMenuHook(code)    TRACE_RETURN(code,menu_hook)
 136 #define returnMenuOpts(code)    TRACE_RETURN(code,menu_opts)
 137
 138 extern NCURSES_EXPORT(ITEM *)       _nc_retrace_item (ITEM *);
 139 extern NCURSES_EXPORT(ITEM **)      _nc_retrace_item_ptr (ITEM **);
 140 extern NCURSES_EXPORT(Item_Options) _nc_retrace_item_opts (Item_Options);
 141 extern NCURSES_EXPORT(MENU *)       _nc_retrace_menu (MENU *);
 142 extern NCURSES_EXPORT(Menu_Hook)    _nc_retrace_menu_hook (Menu_Hook);
 143 extern NCURSES_EXPORT(Menu_Options) _nc_retrace_menu_opts (Menu_Options);
 144
 145 #else /* !TRACE */
 146
 147 #define returnItem(code)        return code
 148 #define returnItemPtr(code)     return code
 149 #define returnItemOpts(code)    return code
 150 #define returnMenu(code)        return code
 151 #define returnMenuHook(code)    return code
 152 #define returnMenuOpts(code)    return code
 153
 154 #endif /* TRACE/!TRACE */
 155
 156 #endif /* MENU_PRIV_H_incl */