#include <u.h>
#include <libc.h>
#include <draw.h>
#include <event.h>

Image *what, *back;
char *fontname = "/lib/font/bit/lucidasans/unicode.13.font";
Font *font;
char but[512];

void
redraw(Image *screen)
{
	draw(screen, screen->r, back, nil, ZP);
	string(screen, screen->r.min, what, ZP, font, but);

	flushimage(display, 1);
}

void
eresized(int new)
{
	if(new && getwindow(display, Refnone) < 0)
		fprint(2,"can't reattach to window");
	redraw(screen);
}

void
main(int, char**)
{
	Event e;
	Mouse m;
	int key, timer;
	int t;
	int text;
	int desk;
	char *deskname = "/srv/desk";

/* gosh I wish this worked -- it would be cool
	you would have soft keys. But there's all this junk in there. 
	text = open("/dev/text", OREAD);
 */
	text = open("/dev/label", OREAD);
	if (text < 0)
		exits(smprint("/dev/label: %r"));

	if (pread(text, but, sizeof(but), 0LL) < 0)
		exits("read label");

	desk = open(deskname, OWRITE);
	if (desk < 0)
		exits(smprint("%s: %r", deskname));
	initdraw(0,0,but);
	drawsetdebug(1);

	if((font = openfont(display, fontname)) == nil)
		sysfatal("font '%s' not found", fontname);

	back = allocimagemix(display, DPalebluegreen, DWhite);
	what = allocimage(display, Rect(0,0,1,1), CMAP8, 1, DBlue);

	redraw(screen);

	einit(Emouse);
	t = (30*1000);
	timer = etimer(0, t);

	for(;;) {
		key = event(&e);
		if(key == Emouse) {
			m = e.mouse;
			if(m.buttons & 4) {
				int amt;
				/* why do we re read this? So you can have soft keys */
				memset(but, 0, sizeof(but));
				amt = pread(text, but, sizeof(but), 0LL);
				if (amt < 0)
					exits("read text: %r");
				amt = write(desk, but, amt);
				if (amt < 0)
					exits("write desk: %r");
			}
		} else if(key == timer) {
			redraw(screen);
		}
	}	
}