/* Output generating routines for GDB.
   Copyright 1999, 2000, 2001 Free Software Foundation, Inc.
   Contributed by Cygnus Solutions.
   Written by Fernando Nasser for Cygnus.

   This file is part of GDB.

   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., 59 Temple Place - Suite 330,
   Boston, MA 02111-1307, USA.  */

#ifndef UI_OUT_H
#define UI_OUT_H 1

/* The ui_out structure */

struct ui_out;
struct ui_out_data;


/* the current ui_out */

/* FIXME: This should not be a global but something passed down from main.c
   or top.c */
extern struct ui_out *uiout;

/* alignment enum */
enum ui_align
  {
    ui_left = -1,
    ui_center,
    ui_right,
    ui_noalign
  };

/* flags enum */
enum ui_flags
  {
    ui_from_tty = 1,
    ui_source_list = 2
  };


/* The ui_out stream structure. */
/* NOTE: cagney/2000-02-01: The ui_stream object can be subsumed by
   the more generic ui_file object.  */

struct ui_stream
  {
    struct ui_out *uiout;
    struct ui_file *stream;
  };


/* Prototypes for ui-out API. */

/* A result is a recursive data structure consisting of lists and
   tupples. */

enum ui_out_type
  {
    ui_out_type_tupple,
    ui_out_type_list
  };

extern void ui_out_begin (struct ui_out *uiout,
			  enum ui_out_type level_type,
			  const char *id);

extern void ui_out_end (struct ui_out *uiout, enum ui_out_type type);

extern struct cleanup *ui_out_begin_cleanup_end (struct ui_out *uiout,
						 enum ui_out_type level_type,
						 const char *id);

/* A table can be considered a special tupple/list combination with
   the implied structure: ``table = { hdr = { header, ... } , body = [ {
   field, ... }, ... ] }'' */

extern void ui_out_table_begin (struct ui_out *uiout, int nbrofcols,
				char *tblid);

extern void ui_out_table_header (struct ui_out *uiout, int width,
				 enum ui_align align, char *colhdr);

extern void ui_out_table_body (struct ui_out *uiout);

extern void ui_out_table_end (struct ui_out *uiout);

/* Compatibility wrappers, new code should use ui_out_begin() and
   ui_out_end(). */

extern void ui_out_list_begin (struct ui_out *uiout, char *lstid);

extern void ui_out_list_end (struct ui_out *uiout);

extern struct cleanup *make_cleanup_ui_out_list_end (struct ui_out *uiout);

extern void ui_out_field_int (struct ui_out *uiout, char *fldname, int value);

extern void ui_out_field_core_addr (struct ui_out *uiout, char *fldname,
				    CORE_ADDR address);

extern void ui_out_field_string (struct ui_out * uiout, char *fldname,
				 const char *string);

extern void ui_out_field_stream (struct ui_out *uiout, char *fldname,
				 struct ui_stream *buf);

extern void ui_out_field_fmt (struct ui_out *uiout, char *fldname,
			      char *format, ...);

extern void ui_out_field_skip (struct ui_out *uiout, char *fldname);

extern void ui_out_spaces (struct ui_out *uiout, int numspaces);

extern void ui_out_text (struct ui_out *uiout, char *string);

extern void ui_out_message (struct ui_out *uiout, int verbosity,
			    char *format, ...);

extern struct ui_stream *ui_out_stream_new (struct ui_out *uiout);

extern void ui_out_stream_delete (struct ui_stream *buf);

struct cleanup *make_cleanup_ui_out_stream_delete (struct ui_stream *buf);

extern void ui_out_wrap_hint (struct ui_out *uiout, char *identstring);

extern void ui_out_flush (struct ui_out *uiout);

extern void ui_out_get_field_separator (struct ui_out *uiout);

extern int ui_out_set_flags (struct ui_out *uiout, int mask);

extern int ui_out_clear_flags (struct ui_out *uiout, int mask);

extern int ui_out_get_verblvl (struct ui_out *uiout);

extern int ui_out_test_flags (struct ui_out *uiout, int mask);

#if 0
extern void ui_out_result_begin (struct ui_out *uiout, char *class);

extern void ui_out_result_end (struct ui_out *uiout);

extern void ui_out_info_begin (struct ui_out *uiout, char *class);

extern void ui_out_info_end (struct ui_out *uiout);

extern void ui_out_notify_begin (struct ui_out *uiout, char *class);

extern void ui_out_notify_end (struct ui_out *uiout);

extern void ui_out_error_begin (struct ui_out *uiout, char *class);

extern void ui_out_error_end (struct ui_out *uiout);
#endif

#if 0
extern void gdb_error (struct ui_out *uiout, int severity, char *format, ...);

extern void gdb_query (struct ui_out *uiout, int qflags, char *qprompt);
#endif

/* From here on we have things that are only needed by implementation
   routines and main.c.   We should pehaps have a separate file for that,
   like a  ui-out-impl.h  file */

/* User Interface Output Implementation Function Table */

/* Type definition of all implementation functions. */

typedef void (table_begin_ftype) (struct ui_out * uiout,
				  int nbrofcols, char *tblid);
typedef void (table_body_ftype) (struct ui_out * uiout);
typedef void (table_end_ftype) (struct ui_out * uiout);
typedef void (table_header_ftype) (struct ui_out * uiout, int width,
				   enum ui_align align, char *colhdr);
/* Note: level 0 is the top-level so LEVEL is always greater than
   zero. */
typedef void (ui_out_begin_ftype) (struct ui_out *uiout,
				   enum ui_out_type type,
				   int level, const char *id);
typedef void (ui_out_end_ftype) (struct ui_out *uiout,
				 enum ui_out_type type,
				 int level);
typedef void (field_int_ftype) (struct ui_out * uiout, int fldno, int width,
			     enum ui_align align, char *fldname, int value);
typedef void (field_skip_ftype) (struct ui_out * uiout, int fldno, int width,
				 enum ui_align align, char *fldname);
typedef void (field_string_ftype) (struct ui_out * uiout, int fldno, int width,
				   enum ui_align align, char *fldname,
				   const char *string);
typedef void (field_fmt_ftype) (struct ui_out * uiout, int fldno, int width,
				enum ui_align align, char *fldname,
				char *format, va_list args);
typedef void (spaces_ftype) (struct ui_out * uiout, int numspaces);
typedef void (text_ftype) (struct ui_out * uiout, char *string);
typedef void (message_ftype) (struct ui_out * uiout, int verbosity,
			      char *format, va_list args);
typedef void (wrap_hint_ftype) (struct ui_out * uiout, char *identstring);
typedef void (flush_ftype) (struct ui_out * uiout);

/* ui-out-impl */

/* IMPORTANT: If you change this structure, make sure to change the default
   initialization in ui-out.c */

struct ui_out_impl
  {
    table_begin_ftype *table_begin;
    table_body_ftype *table_body;
    table_end_ftype *table_end;
    table_header_ftype *table_header;
    ui_out_begin_ftype *begin;
    ui_out_end_ftype *end;
    field_int_ftype *field_int;
    field_skip_ftype *field_skip;
    field_string_ftype *field_string;
    field_fmt_ftype *field_fmt;
    spaces_ftype *spaces;
    text_ftype *text;
    message_ftype *message;
    wrap_hint_ftype *wrap_hint;
    flush_ftype *flush;
  };

extern struct ui_out_data *ui_out_data (struct ui_out *uiout);


/* Create a ui_out object */

extern struct ui_out *ui_out_new (struct ui_out_impl *impl,
				  struct ui_out_data *data,
				  int flags);

#endif /* UI_OUT_H */