/* Physical screen interface.
   Author: Stuart D. Gathman
   Copyright 1988-1997 Business Management Systems, Inc.
   Loosely based on a book by Marc Rochind

   FIXME: convert to C++ abstract class
 */
#include "display.h"
#if 0
#include <stdio.h>
void PStrace(FILE *);	/* enable debugging output to file */
#endif
void PSbegin(void);
void PSend(void);
void PSsync(void);		/* flush changes to terminal */
extern int PSrows, PScols;	/* physical screen size */

  /* write string with constant attribute */
void PSwrite(int row, int col, int cnt, const char *s, CHTYPE a);
  /* write array of different attributes */
void PSwrtattr(int row, int col, int cnt, const CHTYPE far *buf);
  /* fill rectangle with same char + attribute */
void PSfill(const RECT *, CHTYPE);
  /* slide rectangle */
bool PSslide(const RECT *r, enum dir d, int cnt);

void PScurpos(int row, int col);/* position cursor */

/* set cursor type
   0 = invisible
   >0 varies with terminfo but visible
 */
int PScurtype(int type);

void PSrefresh(void);		/* redraw screen */

  /* argument is program to pipe ascii screen data into */
int PSprtscr(const char *prog);	/* print screen */

int PSquit(void);

/* argument says what kind of noise/flash to make,
   0 is "standard", other values terminfo dependent but do something
 */
void PSbeep(int type);

  /* load font for a character if terminal supports it */
int PSfont(CHTYPE , unsigned char [16]);

  /* send characters to attached printer if any */
bool PSprint(const char *buf, int cnt);

  /* convert CHTYPEs from old (AT&T) format */
void PSconv(CHTYPE *a,int n,CHTYPE mod);

/* dropscrn()	Temporarily return terminal to roll mode (i.e. shell mode).
		Should be called before running interactive programs.
   restscrn()	restore full screen mode and screen contents
 */
void dropscrn(void), restscrn(void);

  /* (internal) convert screen character to printable form */
int toprt(CHTYPE);