/*
 * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

/*	Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T	*/
/*	  All Rights Reserved  	*/

/* 
 * Copyright (c) 1980 Regents of the University of California. 
 * All rights reserved. The Berkeley software License Agreement 
 * specifies the terms and conditions for redistribution. 
 */ 
 
#pragma ident	"%Z%%M%	%I%	%E% SMI"

/*
This driver is used with crtplot.c.
It is essentially the same driver as the one in /usr/src/cmd/plot.
Unfortunately, the curses library has some of the same names as does
as the functions that the driver calls.  These have been changed.

Also, one of the commands has been removed since they don't make sense
for crt's.
*/


#include <stdio.h>

float deltx;
float delty;

static void	fplt(FILE *);
static int	getsi(FILE *);
static void	getstr(char *, FILE *);

int
main(int argc, char **argv)
{
	int std=1;
	FILE *fin;

	while(argc-- > 1) {
		if(*argv[1] == '-')
			switch(argv[1][1]) {
				case 'l':
					deltx = atoi(&argv[1][2]) - 1;
					break;
				case 'w':
					delty = atoi(&argv[1][2]) - 1;
					break;
				}

		else {
			std = 0;
			if ((fin = fopen(argv[1], "r")) == NULL) {
				printw("can't open %s\n", argv[1]);
				exit(1);
				}
			fplt(fin);
			}
		argv++;
		}
	if (std)
		fplt( stdin );

	return (0);
}

static void
fplt(FILE *fin)
{
	int c;
	char s[256];
	int xi,yi,x0,y0,x1,y1,r/*,dx,n,i*/;
	/*int pat[256];*/

	openpl();
	while((c=getc(fin)) != EOF){
		switch(c){
		case 'm':
			xi = getsi(fin);
			yi = getsi(fin);
			plot_move(xi,yi);
			break;
		case 'l':
			x0 = getsi(fin);
			y0 = getsi(fin);
			x1 = getsi(fin);
			y1 = getsi(fin);
			line(x0,y0,x1,y1);
			break;
		case 't':
			getstr(s,fin);
			label(s);
			break;
		case 'e':
			plot_erase();
			break;
		case 'p':
			xi = getsi(fin);
			yi = getsi(fin);
			point(xi,yi);
			break;
		case 'n':
			xi = getsi(fin);
			yi = getsi(fin);
			cont(xi,yi);
			break;
		case 's':
			x0 = getsi(fin);
			y0 = getsi(fin);
			x1 = getsi(fin);
			y1 = getsi(fin);
			space(x0,y0,x1,y1);
			break;
		case 'a':
			xi = getsi(fin);
			yi = getsi(fin);
			x0 = getsi(fin);
			y0 = getsi(fin);
			x1 = getsi(fin);
			y1 = getsi(fin);
			arc(xi,yi,x0,y0,x1,y1);
			break;
		case 'c':
			xi = getsi(fin);
			yi = getsi(fin);
			r = getsi(fin);
			circle(xi,yi,r);
			break;
		case 'f':
			getstr(s,fin);
			linemod(s);
			break;
		default:
			fprintf(stderr, "Unknown command %c (%o)\n", c, c);
			break;
			}
		}
	closepl();
}

/* get an integer stored in 2 ascii bytes. */
static int
getsi(FILE *fin)
{
	short a, b;
	if((b = getc(fin)) == EOF)
		return(EOF);
	if((a = getc(fin)) == EOF)
		return(EOF);
	a = a<<8;
	return(a|b);
}

static void
getstr(char *s, FILE *fin)
{
	for( ; *s = getc(fin); s++)
		if(*s == '\n')
			break;
	*s = '\0';
}