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

/* $Id: menu.h,v 1.23 2017/02/11 16:54:04 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)
#define O_MOUSE_MENU    (0x40)

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

#if !NCURSES_OPAQUE_MENU
typedef struct
{
  const char* str;
  unsigned short length;
} TEXT;
#endif /* !NCURSES_OPAQUE_MENU */

struct tagMENU;

typedef struct tagITEM 
#if !NCURSES_OPAQUE_MENU
{
  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;

}
#endif /* !NCURSES_OPAQUE_MENU */
ITEM;

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

typedef struct tagMENU 
#if 1					/* not yet: !NCURSES_OPAQUE_MENU   */
{
  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          */
}
#endif /* !NCURSES_OPAQUE_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 */