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/****************************************************************************
 * Copyright (c) 1998-2007,2009 Free Software Foundation, Inc.             
*
 *                                                                         
*
 * Permission is hereby granted, free of charge, to any person obtaining a 
*
 * copy of this software and associated documentation files (the           
*
 * "Software"), to deal in the Software without restriction,
including      *
 * without limitation the rights to use, copy, modify, merge, publish,     
*
 * distribute, distribute with modifications, sublicense, and/or sell      
*
 * copies of the Software, and to permit persons to whom the Software is   
*
 * furnished to do so, subject to the following conditions:                
*
 *                                                                         
*
 * The above copyright notice and this permission notice shall be included 
*
 * in all copies or substantial portions of the Software.                  
*
 *                                                                         
*
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
KIND, EXPRESS  *
 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF              
*
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  
*
 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,  
*
 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR   
*
 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR   
*
 * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                              
*
 *                                                                         
*
 * Except as contained in this notice, the name(s) of the above copyright  
*
 * holders shall not be used in advertising or otherwise to promote the    
*
 * sale, use or other dealings in this Software without prior written      
*
 * authorization.                                                          
*
 ****************************************************************************/

/****************************************************************************
 *   Author:  Juergen Pfeifer, 1995,1997                                   
*
 ****************************************************************************/

/* $Id: menu.h,v 1.20 2009/04/05 00:28:07 tom Exp $ */

#ifndef ETI_MENU
#define ETI_MENU

#ifdef AMIGA
#define TEXT TEXT_ncurses
#endif

#include <curses.h>
#include <eti.h>

#ifdef __cplusplus
extern "C" {
#endif

typedef int Menu_Options;
typedef int Item_Options;

/* Menu options: */
#define O_ONEVALUE      (0x01)
#define O_SHOWDESC      (0x02)
#define O_ROWMAJOR      (0x04)
#define O_IGNORECASE    (0x08)
#define O_SHOWMATCH     (0x10)
#define O_NONCYCLIC     (0x20)

/* Item options: */
#define O_SELECTABLE    (0x01)

typedef struct
{
  const char* str;
  unsigned short length;
} TEXT;

typedef struct tagITEM 
{
  TEXT           name;        /* name of menu item                        
*/
  TEXT           description; /* description of item, optional in display 
*/ 
  struct tagMENU *imenu;      /* Pointer to parent menu                   
*/
  void           *userptr;    /* Pointer to user defined per item data    
*/ 
  Item_Options   opt;         /* Item options                             
*/ 
  short          index;       /* Item number if connected to a menu       
*/
  short          y;           /* y and x location of item in menu         
*/
  short          x;
  bool           value;       /* Selection value                          
*/
                             
  struct tagITEM *left;       /* neighbor items                           
*/
  struct tagITEM *right;
  struct tagITEM *up;
  struct tagITEM *down;

} ITEM;

typedef void (*Menu_Hook)(struct tagMENU *);

typedef struct tagMENU 
{
  short          height;                /* Nr. of chars high              
*/
  short          width;                 /* Nr. of chars wide              
*/
  short          rows;                  /* Nr. of items high              
*/
  short          cols;                  /* Nr. of items wide              
*/
  short          frows;                 /* Nr. of formatted items high    
*/
  short          fcols;                 /* Nr. of formatted items wide    
*/
  short          arows;                 /* Nr. of items high (actual)     
*/
  short          namelen;               /* Max. name length               
*/
  short          desclen;               /* Max. description length        
*/
  short          marklen;               /* Length of mark, if any         
*/
  short          itemlen;               /* Length of one item             
*/
  short          spc_desc;              /* Spacing for descriptor         
*/
  short          spc_cols;              /* Spacing for columns            
*/
  short          spc_rows;              /* Spacing for rows               
*/ 
  char          *pattern;               /* Buffer to store match chars    
*/
  short          pindex;                /* Index into pattern buffer      
*/
  WINDOW        *win;                   /* Window containing menu         
*/
  WINDOW        *sub;                   /* Subwindow for menu display     
*/
  WINDOW        *userwin;               /* User's window              
    */
  WINDOW        *usersub;               /* User's subwindow           
    */
  ITEM          **items;                /* array of items                 
*/ 
  short          nitems;                /* Nr. of items in menu           
*/
  ITEM          *curitem;               /* Current item                   
*/
  short          toprow;                /* Top row of menu                
*/
  chtype         fore;                  /* Selection attribute            
*/
  chtype         back;                  /* Nonselection attribute         
*/
  chtype         grey;                  /* Inactive attribute             
*/
  unsigned char  pad;                   /* Pad character                  
*/

  Menu_Hook      menuinit;              /* User hooks                     
*/
  Menu_Hook      menuterm;
  Menu_Hook      iteminit;
  Menu_Hook      itemterm;

  void          *userptr;               /* Pointer to menus user data     
*/
  char          *mark;                  /* Pointer to marker string       
*/

  Menu_Options   opt;                   /* Menu options                   
*/
  unsigned short status;                /* Internal state of menu         
*/

} MENU;


/* Define keys */

#define REQ_LEFT_ITEM           (KEY_MAX + 1)
#define REQ_RIGHT_ITEM          (KEY_MAX + 2)
#define REQ_UP_ITEM             (KEY_MAX + 3)
#define REQ_DOWN_ITEM           (KEY_MAX + 4)
#define REQ_SCR_ULINE           (KEY_MAX + 5)
#define REQ_SCR_DLINE           (KEY_MAX + 6)
#define REQ_SCR_DPAGE           (KEY_MAX + 7)
#define REQ_SCR_UPAGE           (KEY_MAX + 8)
#define REQ_FIRST_ITEM          (KEY_MAX + 9)
#define REQ_LAST_ITEM           (KEY_MAX + 10)
#define REQ_NEXT_ITEM           (KEY_MAX + 11)
#define REQ_PREV_ITEM           (KEY_MAX + 12)
#define REQ_TOGGLE_ITEM         (KEY_MAX + 13)
#define REQ_CLEAR_PATTERN       (KEY_MAX + 14)
#define REQ_BACK_PATTERN        (KEY_MAX + 15)
#define REQ_NEXT_MATCH          (KEY_MAX + 16)
#define REQ_PREV_MATCH          (KEY_MAX + 17)

#define MIN_MENU_COMMAND        (KEY_MAX + 1)
#define MAX_MENU_COMMAND        (KEY_MAX + 17)

/*
 * Some AT&T code expects MAX_COMMAND to be out-of-band not
 * just for menu commands but for forms ones as well.
 */
#if defined(MAX_COMMAND)
#  if (MAX_MENU_COMMAND > MAX_COMMAND)
#    error Something is wrong -- MAX_MENU_COMMAND is greater than
MAX_COMMAND
#  elif (MAX_COMMAND != (KEY_MAX + 128))
#    error Something is wrong -- MAX_COMMAND is already inconsistently
defined.
#  endif
#else
#  define MAX_COMMAND (KEY_MAX + 128)
#endif


/* --------- prototypes for libmenu functions -----------------------------
*/

extern NCURSES_EXPORT(ITEM **)	menu_items (const MENU *);
extern NCURSES_EXPORT(ITEM *)	current_item (const MENU *);
extern NCURSES_EXPORT(ITEM *)	new_item (const char *,const char *);

extern NCURSES_EXPORT(MENU *)	new_menu (ITEM **);

extern NCURSES_EXPORT(Item_Options)	item_opts (const ITEM *);
extern NCURSES_EXPORT(Menu_Options)	menu_opts (const MENU *);

extern NCURSES_EXPORT(Menu_Hook)	item_init (const MENU *);
extern NCURSES_EXPORT(Menu_Hook)	item_term (const MENU *);
extern NCURSES_EXPORT(Menu_Hook)	menu_init (const MENU *);
extern NCURSES_EXPORT(Menu_Hook)	menu_term (const MENU *);

extern NCURSES_EXPORT(WINDOW *)	menu_sub (const MENU *);
extern NCURSES_EXPORT(WINDOW *)	menu_win (const MENU *);

extern NCURSES_EXPORT(const char *)	item_description (const ITEM *);
extern NCURSES_EXPORT(const char *)	item_name (const ITEM *);
extern NCURSES_EXPORT(const char *)	menu_mark (const MENU *);
extern NCURSES_EXPORT(const char *)	menu_request_name (int);

extern NCURSES_EXPORT(char *)	menu_pattern (const MENU *);

extern NCURSES_EXPORT(void *)	menu_userptr (const MENU *);
extern NCURSES_EXPORT(void *)	item_userptr (const ITEM *);

extern NCURSES_EXPORT(chtype)	menu_back (const MENU *);
extern NCURSES_EXPORT(chtype)	menu_fore (const MENU *);
extern NCURSES_EXPORT(chtype)	menu_grey (const MENU *);

extern NCURSES_EXPORT(int)	free_item (ITEM *);
extern NCURSES_EXPORT(int)	free_menu (MENU *);
extern NCURSES_EXPORT(int)	item_count (const MENU *);
extern NCURSES_EXPORT(int)	item_index (const ITEM *);
extern NCURSES_EXPORT(int)	item_opts_off (ITEM *,Item_Options);
extern NCURSES_EXPORT(int)	item_opts_on (ITEM *,Item_Options);
extern NCURSES_EXPORT(int)	menu_driver (MENU *,int);
extern NCURSES_EXPORT(int)	menu_opts_off (MENU *,Menu_Options);
extern NCURSES_EXPORT(int)	menu_opts_on (MENU *,Menu_Options);
extern NCURSES_EXPORT(int)	menu_pad (const MENU *);
extern NCURSES_EXPORT(int)	pos_menu_cursor (const MENU *);
extern NCURSES_EXPORT(int)	post_menu (MENU *);
extern NCURSES_EXPORT(int)	scale_menu (const MENU *,int *,int *);
extern NCURSES_EXPORT(int)	set_current_item (MENU *menu,ITEM *item);
extern NCURSES_EXPORT(int)	set_item_init (MENU *, Menu_Hook);
extern NCURSES_EXPORT(int)	set_item_opts (ITEM *,Item_Options);
extern NCURSES_EXPORT(int)	set_item_term (MENU *, Menu_Hook);
extern NCURSES_EXPORT(int)	set_item_userptr (ITEM *, void *);
extern NCURSES_EXPORT(int)	set_item_value (ITEM *,bool);
extern NCURSES_EXPORT(int)	set_menu_back (MENU *,chtype);
extern NCURSES_EXPORT(int)	set_menu_fore (MENU *,chtype);
extern NCURSES_EXPORT(int)	set_menu_format (MENU *,int,int);
extern NCURSES_EXPORT(int)	set_menu_grey (MENU *,chtype);
extern NCURSES_EXPORT(int)	set_menu_init (MENU *, Menu_Hook);
extern NCURSES_EXPORT(int)	set_menu_items (MENU *,ITEM **);
extern NCURSES_EXPORT(int)	set_menu_mark (MENU *, const char *);
extern NCURSES_EXPORT(int)	set_menu_opts (MENU *,Menu_Options);
extern NCURSES_EXPORT(int)	set_menu_pad (MENU *,int);
extern NCURSES_EXPORT(int)	set_menu_pattern (MENU *,const char *);
extern NCURSES_EXPORT(int)	set_menu_sub (MENU *,WINDOW *);
extern NCURSES_EXPORT(int)	set_menu_term (MENU *, Menu_Hook);
extern NCURSES_EXPORT(int)	set_menu_userptr (MENU *,void *);
extern NCURSES_EXPORT(int)	set_menu_win (MENU *,WINDOW *);
extern NCURSES_EXPORT(int)	set_top_row (MENU *,int);
extern NCURSES_EXPORT(int)	top_row (const MENU *);
extern NCURSES_EXPORT(int)	unpost_menu (MENU *);
extern NCURSES_EXPORT(int)	menu_request_by_name (const char *);
extern NCURSES_EXPORT(int)	set_menu_spacing (MENU *,int,int,int);
extern NCURSES_EXPORT(int)	menu_spacing (const MENU *,int *,int *,int *);


extern NCURSES_EXPORT(bool)	item_value (const ITEM *);
extern NCURSES_EXPORT(bool)	item_visible (const ITEM *);

extern NCURSES_EXPORT(void)	menu_format (const MENU *,int *,int *);

#if NCURSES_SP_FUNCS
extern NCURSES_EXPORT(MENU *)	NCURSES_SP_NAME(new_menu) (SCREEN*, ITEM **);
#endif

#ifdef __cplusplus
  }
#endif

#endif /* ETI_MENU */