Subversion Repositories planix.SVN

#include <u.h>

#include <libc.h>

#include <draw.h>

#include <event.h>

Image *hrhand, *minhand;

Image *dots, *back;

Point

circlept(Point c, int r, int degrees)

{

	double rad;

	rad = (double) degrees * PI/180.0;

	c.x += cos(rad)*r;

	c.y -= sin(rad)*r;

	return c;

}

void

redraw(Image *screen)

{

	static int tm, ntm;

	static Rectangle r;

	static Point c;

	static int rad;

	static Image *im;

	int i;

	int anghr, angmin;

	static Tm tms;

	static Tm ntms;

	ntm = time(0);

	if(ntm == tm && eqrect(screen->r, r))

		return;

	ntms = *localtime(ntm);

	anghr = 90-(ntms.hour*5 + ntms.min/12)*6;

	angmin = 90-ntms.min*6;

	tm = ntm;

	tms = ntms;

	r = screen->r;

	c = divpt(addpt(r.min, r.max), 2);

	rad = Dx(r) < Dy(r) ? Dx(r) : Dy(r);

	rad /= 2;

	rad -= 8;

	draw(screen, screen->r, back, nil, ZP);

	for(i=0; i<12; i++)

		fillellipse(screen, circlept(c, rad, i*(360/12)), 2, 2, dots, ZP);

	line(screen, c, circlept(c, (rad*3)/4, angmin), 0, 0, 1, minhand, ZP);

	line(screen, c, circlept(c, rad/2, anghr), 0, 0, 1, hrhand, ZP);

	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;

	Menu menu;

	char *mstr[] = {"exit", 0};

	int key, timer;

	int t;

	if (initdraw(0, 0, "clock") < 0)

		sysfatal("initdraw failed");

	back = allocimagemix(display, DPalebluegreen, DWhite);

	hrhand = allocimage(display, Rect(0,0,1,1), CMAP8, 1, DDarkblue);

	minhand = allocimage(display, Rect(0,0,1,1), CMAP8, 1, DPaleblue);

	dots = allocimage(display, Rect(0,0,1,1), CMAP8, 1, DBlue);

	redraw(screen);

	einit(Emouse);

	t = (30*1000);

	timer = etimer(0, t);

	menu.item = mstr;

	menu.lasthit = 0;

	for(;;) {

		key = event(&e);

		if(key == Emouse) {

			m = e.mouse;

			if(m.buttons & 4) {

				if(emenuhit(3, &m, &menu) == 0)

					exits(0);

			}

		} else if(key == timer) {

			redraw(screen);

		}

	}	

}