mirror of
https://github.com/python/cpython.git
synced 2025-07-12 13:55:34 +00:00
30d7e9e721
[3.13] gh-123370: Fix the canvas not clearing after running turtledemo.clock (GH-123457)
Rewriting the day and date every tick somehow prevented them from being removed either by clicking STOP or loading another example. The solution is to rewrite them only when they change.
(cherry picked from commit c124577ebe)
Co-authored-by: Wulian <xiguawulian@gmail.com>
138 lines
3.2 KiB
Python
Executable file
138 lines
3.2 KiB
Python
Executable file
#!/usr/bin/env python3
|
|
""" turtle-example-suite:
|
|
|
|
turtledemo/clock.py
|
|
|
|
Enhanced clock-program, showing date
|
|
and time
|
|
------------------------------------
|
|
Press STOP to exit the program!
|
|
------------------------------------
|
|
"""
|
|
from turtle import *
|
|
from datetime import datetime
|
|
|
|
dtfont = "TkFixedFont", 14, "bold"
|
|
current_day = None
|
|
|
|
def jump(distanz, winkel=0):
|
|
penup()
|
|
right(winkel)
|
|
forward(distanz)
|
|
left(winkel)
|
|
pendown()
|
|
|
|
def hand(laenge, spitze):
|
|
fd(laenge*1.15)
|
|
rt(90)
|
|
fd(spitze/2.0)
|
|
lt(120)
|
|
fd(spitze)
|
|
lt(120)
|
|
fd(spitze)
|
|
lt(120)
|
|
fd(spitze/2.0)
|
|
|
|
def make_hand_shape(name, laenge, spitze):
|
|
reset()
|
|
jump(-laenge*0.15)
|
|
begin_poly()
|
|
hand(laenge, spitze)
|
|
end_poly()
|
|
hand_form = get_poly()
|
|
register_shape(name, hand_form)
|
|
|
|
def clockface(radius):
|
|
reset()
|
|
pensize(7)
|
|
for i in range(60):
|
|
jump(radius)
|
|
if i % 5 == 0:
|
|
fd(25)
|
|
jump(-radius-25)
|
|
else:
|
|
dot(3)
|
|
jump(-radius)
|
|
rt(6)
|
|
|
|
def display_date_time():
|
|
global current_day
|
|
writer.clear()
|
|
now = datetime.now()
|
|
current_day = now.day
|
|
writer.home()
|
|
writer.forward(distance=65)
|
|
writer.write(wochentag(now), align="center", font=dtfont)
|
|
writer.back(distance=150)
|
|
writer.write(datum(now), align="center", font=dtfont)
|
|
writer.forward(distance=85)
|
|
|
|
def setup():
|
|
global second_hand, minute_hand, hour_hand, writer
|
|
mode("logo")
|
|
make_hand_shape("second_hand", 125, 25)
|
|
make_hand_shape("minute_hand", 115, 25)
|
|
make_hand_shape("hour_hand", 90, 25)
|
|
clockface(160)
|
|
second_hand = Turtle()
|
|
second_hand.shape("second_hand")
|
|
second_hand.color("gray20", "gray80")
|
|
minute_hand = Turtle()
|
|
minute_hand.shape("minute_hand")
|
|
minute_hand.color("blue1", "red1")
|
|
hour_hand = Turtle()
|
|
hour_hand.shape("hour_hand")
|
|
hour_hand.color("blue3", "red3")
|
|
for hand in second_hand, minute_hand, hour_hand:
|
|
hand.resizemode("user")
|
|
hand.shapesize(1, 1, 3)
|
|
hand.speed(0)
|
|
ht()
|
|
writer = Turtle()
|
|
writer.ht()
|
|
writer.pu()
|
|
writer.bk(85)
|
|
display_date_time()
|
|
|
|
def wochentag(t):
|
|
wochentag = ["Monday", "Tuesday", "Wednesday",
|
|
"Thursday", "Friday", "Saturday", "Sunday"]
|
|
return wochentag[t.weekday()]
|
|
|
|
def datum(z):
|
|
monat = ["Jan.", "Feb.", "Mar.", "Apr.", "May", "June",
|
|
"July", "Aug.", "Sep.", "Oct.", "Nov.", "Dec."]
|
|
j = z.year
|
|
m = monat[z.month - 1]
|
|
t = z.day
|
|
return "%s %d %d" % (m, t, j)
|
|
|
|
def tick():
|
|
t = datetime.today()
|
|
sekunde = t.second + t.microsecond*0.000001
|
|
minute = t.minute + sekunde/60.0
|
|
stunde = t.hour + minute/60.0
|
|
try:
|
|
tracer(False) # Terminator can occur here
|
|
second_hand.setheading(6*sekunde) # or here
|
|
minute_hand.setheading(6*minute)
|
|
hour_hand.setheading(30*stunde)
|
|
if t.day != current_day:
|
|
display_date_time()
|
|
tracer(True)
|
|
ontimer(tick, 100)
|
|
except Terminator:
|
|
pass # turtledemo user pressed STOP
|
|
|
|
def main():
|
|
tracer(False)
|
|
setup()
|
|
tracer(True)
|
|
tick()
|
|
return "EVENTLOOP"
|
|
|
|
if __name__ == "__main__":
|
|
mode("logo")
|
|
msg = main()
|
|
print(msg)
|
|
mainloop()
|