rendered paste body"""M CLOCK 2.0."""from __future__ import divisionimport timeimport mathimport Tkinterclass MClock: def __init__(self, radius=200, segments=9): self.segments = segments self.root = Tkinter.Tk() self.root.wm_title("M Clock 2.0") self.canvas = Tkinter.Canvas(self.root, width=2*radius, height=2*radius, bg="black", highlightthickness=0, takefocus=True) self.canvas.pack(expand=True, fill="both") self.canvas.bind("<Configure>", self.on_configure) self.canvas.bind("<ButtonPress-1>", self.on_press) self.canvas.bind("<B1-Motion>", self.on_motion) self.canvas.bind("<ButtonRelease-1>", self.on_release) self.canvas.bind("<3>", self.on_zoom) self.recalc(radius*2, radius*2) def on_configure(self, event): self.recalc(event.width, event.height) credits = ("M Clock 2.0\n" "by Guido van Rossum\n" "after a design by Rob Juda\n" "(right button toggles full screen mode)") creditid = None showtext = False def on_press(self, event): self.creditid = self.canvas.create_text( self.canvas.canvasx(event.x), self.canvas.canvasy(event.y), anchor="s", text=self.credits, font="Helvetica 16 bold", justify="center") self.showtext = not self.showtext def on_motion(self, event): creditid = self.creditid if creditid: oldx, oldy = self.canvas.coords(creditid) self.canvas.move(creditid, self.canvas.canvasx(event.x) - oldx, self.canvas.canvasy(event.y) - oldy) def on_release(self, event): creditid = self.creditid if creditid: self.creditid = None self.canvas.delete(creditid) def on_zoom(self, event): if self.root.wm_overrideredirect(): self.root.wm_overrideredirect(False) self.root.wm_state("normal") self.root.wm_geometry("400x400") else: self.root.wm_overrideredirect(True) self.root.wm_state("zoomed") def recalc(self, width, height): radius = min(width, height) // 2 self.width = width self.height = height self.radius = radius self.bigsize = radius * .975 self.litsize = radius * .75 self.canvas.configure(scrollregion=(-width//2, -height//2, width//2, height//2)) def demo(self, speed=1, colors=(0, 1, 2), segments=None): if segments is not None: self.segments = segments if self.creditid: text = "N=%s\nv=%s\n%s" % (self.segments, speed, list(colors)) self.canvas.itemconfigure(self.creditid, text=text) hh, mm, ss = time.localtime()[3:6] self.showtext = False while not self.showtext: try: self.draw(hh, mm, ss, colors) except Tkinter.TclError: break self.root.update() ss += speed mm, ss = divmod(mm*60 + ss, 60) hh, mm = divmod(hh*60 + mm, 60) hh %= 24 def run(self): self.redraw() self.root.mainloop() def redraw(self): t = time.time() hh, mm, ss = time.localtime(t)[3:6] self.draw(hh, mm, ss) self.root.after(int(1000 * (1 - t%1.0)), self.redraw) ids = () def draw(self, hh, mm, ss, colors=(0, 1, 2)): radius = self.radius bigsize = self.bigsize litsize = self.litsize # Delete old items if self.ids: self.canvas.delete(*self.ids) self.ids = [] # Set bigd, litd to angles in degrees for big, little hands # 12 => 90, 3 => 0, etc. bigd = (90 - (mm*60 + ss) / 10) % 360 litd = (90 - (hh*3600 + mm*60 + ss) / 120) % 360 # Set bigr, litr to the same values in radians bigr = bigd * math.pi / 180 litr = litd * math.pi / 180 # Draw the background colored arcs self.drawbg(bigd, litd, colors) # Draw the hands b = self.canvas.create_line(0, 0, bigsize*math.cos(bigr), -bigsize*math.sin(bigr), width=radius/75, capstyle="round") l = self.canvas.create_line(0, 0, litsize*math.cos(litr), -litsize*math.sin(litr), width=radius/50, capstyle="round") self.ids.append(b) self.ids.append(l) # Draw the text if self.showtext: t = self.canvas.create_text(-bigsize, bigsize, text="%02d:%02d:%02d" % (hh, mm, ss), fill="white", anchor="sw", font="helvetica 16 bold") self.ids.append(t) if self.creditid: self.canvas.tag_raise(self.creditid) def drawbg(self, bigd, litd, colors=(0, 1, 2)): # This is tricky. We have to simulate a white background with # three transparent discs in front of it; one disc is # stationary and the other two are attached to the big and # little hands, respectively. Each disc has 9 pie segments in # sucessive shades of pigment applied to it, ranging from # fully transparent to only allowing one of the three colors # Cyan, Magenta, Yellow through. N = self.segments table = [] for angle, colorindex in [(bigd + 180/N, 0), (litd + 180/N, 1), ( 90 + 180/N, 2)]: angle %= 360 for i in range(N): color = 255 if colorindex in colors: color = i*color//(N-1) table.append((angle, color, colorindex)) angle += 360/N if angle >= 360: angle -= 360 table.append((0, color, colorindex)) table.sort() table.append((360, None)) radius = self.radius fill = [0, 0, 0] for i, (angle, color, colorindex) in enumerate(table[:-1]): fill[colorindex] = color if table[i+1][0] > angle: extent = table[i+1][0] - angle if extent < 1.: # XXX Work around a bug in Tk for very small angles extent = 1. id = self.canvas.create_arc(-radius, -radius, radius, radius, fill="#%02x%02x%02x" % tuple(fill), outline="", start=angle, extent=extent) self.ids.append(id)def main(): MClock().run()def demo(): mc = MClock() save_credits = mc.credits mc.credits = "" mc.demo(0, ()) mc.demo(1, ()) mc.demo(10, ()) mc.demo(100, ()) mc.demo(1000, ()) mc.demo(0, (2,)) mc.demo(10, (2,)) mc.demo(0, (1,)) mc.demo(10, (1,)) mc.demo(0, (0,)) mc.demo(10, (0,)) mc.demo(0, (0, 1, 2,)) mc.demo(1, (0, 1, 2,)) mc.demo(10, (0, 1, 2,)) mc.demo(100, (0, 1, 2,)) mc.demo(0, (0, 1, 2,), 2) mc.demo(1, (0, 1, 2,)) mc.demo(10, (0, 1, 2,)) mc.demo(0, (0, 1, 2,), 3) mc.demo(1, (0, 1, 2,)) mc.demo(10, (0, 1, 2,)) mc.demo(0, (0, 1, 2,), 4) mc.demo(1, (0, 1, 2,)) mc.demo(10, (0, 1, 2,)) mc.demo(0, (0, 1, 2,), 5) mc.demo(1, (0, 1, 2,)) mc.demo(10, (0, 1, 2,)) mc.demo(0, (0, 1, 2,), 6) mc.demo(1, (0, 1, 2,)) mc.demo(10, (0, 1, 2,)) mc.demo(0, (0, 1, 2,), 32) mc.demo(1, (0, 1, 2,)) mc.demo(10, (0, 1, 2,)) mc.demo(0, (0, 1, 2,), 128) mc.demo(1, (0, 1, 2,)) mc.demo(10, (0, 1, 2,)) mc.demo(0, (0, 1, 2,), 9) # Reset mc.credits = save_credits mc.run()if __name__ == "__main__": import sys if "-d" in sys.argv[1:] or "demo" in sys.argv[0]: demo() else: main()