/* -*- c -*- ------------------------------------------------------------- *
 *   
 *   Copyright 2004-2005 Murali Krishnan Ganapathy - All Rights Reserved
 *
 *   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, Inc., 53 Temple Place Ste 330,
 *   Boston MA 02111-1307, USA; either version 2 of the License, or
 *   (at your option) any later version; incorporated herein by reference.
 *
 * ----------------------------------------------------------------------- */

#ifndef __TUI_H__
#define __TUI_H__

#include <com32.h>
#include "com32io.h"

#ifndef NULL
#define NULL ((void *)0)
#endif

#define BELL 0x07
// CHRELATTR = ^N, CHABSATTR = ^O
#define CHABSATTR 15 
#define CHRELATTR 14

void clearwindow(char top, char left, char bot, char right, 
		 char page, char fillchar, char fillattr);

void cls(void);	/* Clears the entire current screen page */

// Generic user input, 
// password = 0 iff chars echoed on screen
// showoldvalue <> 0 iff current displayed for editing
void getuserinput(char *str, unsigned int size, 
     unsigned int password, unsigned int showoldvalue);

static inline void getstring(char *str, unsigned int size) 
{
   getuserinput(str,size,0,0);
}

static inline void editstring(char *str, unsigned int size)
{
   getuserinput(str,size,0,1);
}

static inline void getpwd(char * str, unsigned int size)
{
   getuserinput(str,size,1,0);
}

// Box drawing Chars offsets into array
#define BOX_TOPLEFT  0x0
#define BOX_BOTLEFT  0x1
#define BOX_TOPRIGHT 0x2
#define BOX_BOTRIGHT 0x3
#define BOX_TOP      0x4 // TOP = BOT = HORIZ
#define BOX_BOT      0x4
#define BOX_HORIZ    0x4
#define BOX_LEFT     0x5
#define BOX_RIGHT    0x5
#define BOX_VERT     0x5 // LEFT=RIGHT=VERT
#define BOX_LTRT     0x6 
#define BOX_RTLT     0x7 
#define BOX_TOPBOT   0x8
#define BOX_BOTTOP   0x9
#define BOX_MIDDLE   0xA

typedef enum {BOX_SINSIN,BOX_DBLDBL, BOX_SINDBL, BOX_DBLSIN} boxtype;

unsigned char * getboxchars(boxtype bt);

void drawbox(char top,char left,char bot, char right, 
             char page, char attr,boxtype bt);

// Draw a horizontal line
// dumb == 1, means just draw the line
// dumb == 0 means check the first and last positions and depending on what is
//    currently on the screen make it a LTRT and/or RTLT appropriately.
void drawhorizline(char top, char left, char right, char page, char attr,
                   boxtype bt, char dumb);

#endif
