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/*
* Copyright (C) 1996-2000 Michael R. Elkins <me@mutt.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/

/*
* This file is named mutt_menu.h so it doesn't collide with ncurses menu.h
*/

#ifndef _MUTT_MENU_H_
#define _MUTT_MENU_H_ 1

#include "keymap.h"
#include "mutt_regex.h"

#define REDRAW_INDEX (1)
#define REDRAW_MOTION (1<<1)
#define REDRAW_MOTION_RESYNCH (1<<2)
#define REDRAW_CURRENT (1<<3)
#define REDRAW_STATUS (1<<4)
#define REDRAW_FULL (1<<5)
#define REDRAW_BODY (1<<6)
#define REDRAW_SIGWINCH (1<<7)

#define M_MODEFMT "-- Mutt: %s"

typedef struct menu_t
{
  char *title; /* the title of this menu */
  char *help; /* quickref for the current menu */
  void *data; /* extra data for the current menu */
  int current; /* current entry */
  int max; /* the number of entries in the menu */
  int redraw; /* when to redraw the screen */
  int menu; /* menu definition for keymap entries. */
  int offset; /* which screen row to start the index */
  int pagelen; /* number of entries per screen */
  int tagprefix;

  /* Setting dialog != NULL overrides normal menu behaviour.
* In dialog mode menubar is hidden and prompt keys are checked before
* normal menu movement keys. This can cause problems with scrolling, if
* prompt keys override movement keys.
*/
  char **dialog; /* dialog lines themselves */
  char *prompt; /* prompt for user, similar to mutt_multi_choice */
  char *keys; /* keys used in the prompt */
  
  /* callback to generate an index line for the requested element */
  void (*make_entry) (char *, size_t, struct menu_t *, int);
  
  /* how to search the menu */
  int (*search) (struct menu_t *, regex_t *re, int n);

  int (*tag) (struct menu_t *, int i, int m);

  /* color pair to be used for the requested element
* (default function returns ColorDefs[MT_COLOR_NORMAL])
*/
  int (*color) (int i);
   
  /* the following are used only by mutt_menuLoop() */
  int top; /* entry that is the top of the current page */
  int oldcurrent; /* for driver use only. */
  int searchDir; /* direction of search */
  int tagged; /* number of tagged entries */
} MUTTMENU;

void mutt_menu_init (void);
void menu_jump (MUTTMENU *);
void menu_redraw_full (MUTTMENU *);
void menu_redraw_index (MUTTMENU *);
void menu_redraw_status (MUTTMENU *);
void menu_redraw_motion (MUTTMENU *);
void menu_redraw_current (MUTTMENU *);
int menu_redraw (MUTTMENU *);
void menu_first_entry (MUTTMENU *);
void menu_last_entry (MUTTMENU *);
void menu_top_page (MUTTMENU *);
void menu_bottom_page (MUTTMENU *);
void menu_middle_page (MUTTMENU *);
void menu_next_page (MUTTMENU *);
void menu_prev_page (MUTTMENU *);
void menu_next_line (MUTTMENU *);
void menu_prev_line (MUTTMENU *);
void menu_half_up (MUTTMENU *);
void menu_half_down (MUTTMENU *);
void menu_current_top (MUTTMENU *);
void menu_current_middle (MUTTMENU *);
void menu_current_bottom (MUTTMENU *);
void menu_check_recenter (MUTTMENU *);
void menu_status_line (char *, size_t, MUTTMENU *, const char *);

MUTTMENU *mutt_new_menu (int);
void mutt_menuDestroy (MUTTMENU **);
int mutt_menuLoop (MUTTMENU *);

/* used in both the index and pager index to make an entry. */
void index_make_entry (char *, size_t, struct menu_t *, int);
int index_color (int);

#endif /* _MUTT_MENU_H_ */
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