do_bord.c ; turn borders on/off for PC7300

[loci!clb]

	If you're running a 7300 without windows, that is without "ua",
	then sometimes a window pops up ("lpinfo", etc.) which must be
	cleared away. At other times it is convenient to have borders,
	for example to switch quickly between DOS-73 and a shell.
	Here is a simple program to turn borders on and off. It is
	invoked by typeing ...

do_bord on	...	to turn borders on or ...
do_bord off	...	to turn borders off (80x24)

	Turning the borders on results in a window which can be "mouse'd"
	from DOS-73, that is to say, it has a bit visible behind the
	window used by DOS-73. The environment variables "WNHEIGHT" and
	"WNWIDTH" are used, if set.

	One known bug: "vi" page size isn't affected by invoking windows
	and if "vi" thinks the page is 80x24, it makes a mess in a window.

	As always, if you have questions, suggestions, flames, or make
	interesting mod's, please send email.

					Charles Brunow
					clb at loci.uucp

____________________cut_line________

#include	<stdio.h>
#include	<sys/window.h>

static char	author[] = { "@(#)do_bord.c	1.1: clb at loci.uucp (CLBrunow)"};

struct uwdata	params =
{	0, 12, 720, 288, NBORDER, },	/* 80x24 screen, no border */
	stdwin =
{	10, 12, 675, 144, BORDRESIZE, }	/* default window */
;
struct utdata	labels[] =
{
	{	WTXTSLK1, "" },
	{	WTXTSLK2, "" },
	{	WTXTPROMT, "" },
	{	WTXTCMD, "" },
	{	WTXTLABEL, "Unix Shell" },
	{	WTXTUSER, "Unix Shell" }
};

main(ac, av)
char	*av[];
{
	int	i;

	if(ac == 1)
	{
		printf("usage: %s on|off\n", av[0]);
		exit(1);
	}
	if(av[1][2] == 'f')
		ioctl(0, WIOCSETD, &params);
	else {
		set_stdwin();	/* read environ for win size, if possible */
		ioctl(0, WIOCSETD, &stdwin);
	}
	for(i=0; i<6; i++)
		ioctl(0, WIOCSETTEXT, &labels[i]);
	exit(0);
}

set_stdwin()
{
	int	t;
	char	*p;
	extern char	*getenv();

	if((p = getenv("WNHEIGHT")) != NULL) {
		sscanf(p, "%d", &t);
		if(t > 0)	stdwin.uw_height = t * WTXTVS;
	}
	if((p = getenv("WNWIDTH")) != NULL) {
		sscanf(p, "%d", &t);
		if(t > 0)	stdwin.uw_width = 9 * t;
	}
}