/*
	console.h

	Console definitions and prototypes

	Copyright (C) 1996-1997  Id Software, Inc.

	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:

		Free Software Foundation, Inc.
		59 Temple Place - Suite 330
		Boston, MA  02111-1307, USA

	$Id$
*/

#ifndef __console_h
#define __console_h

#include <stdarg.h>

#include "QF/qtypes.h"
#include "QF/gcc_attr.h"

#define		CON_TEXTSIZE	32764
typedef struct
{
	char	text[CON_TEXTSIZE];
	int		current;		// line where next message will be printed
	int		x;				// offset in current line for next print
	int		display;		// bottom of console displays this line
	int		numlines;		// number of non-blank text lines, used for backscroling
} old_console_t;

typedef struct inputline_s
{
	char	**lines;		// array of lines for input history
	int		num_lines;		// number of lines in arry. 1 == no history
	int		line_size;		// space available in each line. includes \0
	char	prompt_char;	// char placed at the beginning of the line
	int		edit_line;		// current line being edited
	int		history_line;	// current history line
	int		linepos;		// cursor position within the current edit line
	int		scroll;			// beginning of displayed line
	int		width;			// viewable widht for horizontal scrolling
	void   *user_data;		// eg: window pointer
	void	(*complete)(struct inputline_s *); // tab key pressed
	void	(*enter)(const char *line); // enter key pressed
	void	(*draw)(struct inputline_s *); // draw input line to screen
} inputline_t;

typedef struct {
	byte	*text;
	size_t	len;
} con_line_t;

typedef struct {
	byte		*buffer;
	size_t		buffer_size;
	con_line_t	*lines;
	int			max_lines;			// size of lines array
	int			num_lines;			// number of lines used
	int			cur_line;			// current line
} con_buffer_t;

extern	old_console_t	con_main;
extern	old_console_t	con_chat;
extern	old_console_t	*con;		// point to either con_main or con_chat

extern	int			con_ormask;

extern int con_totallines;
extern qboolean con_initialized;
extern byte *con_chars;
extern	int	con_notifylines;		// scan lines to clear for notify lines

void Con_DrawCharacter (int cx, int line, int num);

void Con_CheckResize (void);
void Con_DrawConsole (int lines);
void Con_DrawDownload (int lines);

void Con_Print (const char *fmt, va_list args);
void Con_Printf (const char *fmt, ...) __attribute__((format(printf,1,2)));
void Con_DPrintf (const char *fmt, ...) __attribute__((format(printf,1,2)));
void Con_Clear_f (void);
void Con_DrawNotify (void);
void Con_ClearNotify (void);
void Con_ToggleConsole_f (void);

// wrapper function to attempt to either complete the command line
// or to list possible matches grouped by type
// (i.e. will display possible variables, aliases, commands
// that match what they've typed so far)
void Con_CompleteCommandLine(void);
void Con_BasicCompleteCommandLine (inputline_t *il);

// Generic libs/util/console.c function to display a list
// formatted in columns on the console
void Con_DisplayList(const char **list, int con_linewidth);

inputline_t *Con_CreateInputLine (int lines, int width, char prompt);
void Con_DestroyInputLine (inputline_t *inputline);
void Con_ProcessInputLine (inputline_t *il, int ch);

con_buffer_t *Con_CreateBuffer (size_t buffer_size, int max_lines);
void Con_DestroyBuffer (con_buffer_t *buffer);
void Con_BufferAddText (con_buffer_t *buf, const char *text);
#define Con_BufferLine(b,l) ((b)->lines + ((l) + (b)->max_lines) % (b)->max_lines)

// init/shutdown functions
void Con_Init (const char *plugin_name);
void Con_Init_Cvars (void);
void Con_Shutdown (void);

void Con_ProcessInput (void);

#endif // __console_h