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Code Issues Projects Releases Packages Wiki Activity Actions 11

gh-123370: Fix the canvas not clearing after running turtledemo.clock (#123457)

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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.
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Wulian 2024-10-17 23:23:37 +08:00 • committed by GitHub
parent 528bbab96f
commit c124577ebe
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2 changed files with 21 additions and 13 deletions
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33
Lib/turtledemo/clock.py
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@ -1,7 +1,6 @@
# -*- coding: cp1252 -*-
""" turtle-example-suite: """ turtle-example-suite:
tdemo_clock.py turtledemo/clock.py
Enhanced clock-program, showing date Enhanced clock-program, showing date
and time and time
@ -12,6 +11,9 @@ and time
from turtle import * from turtle import *
from datetime import datetime from datetime import datetime
dtfont = "TkFixedFont", 14, "bold"
current_day = None
def jump(distanz, winkel=0): def jump(distanz, winkel=0):
penup() penup()
right(winkel) right(winkel)
@ -52,11 +54,23 @@ def clockface(radius):
jump(-radius) jump(-radius)
rt(6) 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(): def setup():
global second_hand, minute_hand, hour_hand, writer global second_hand, minute_hand, hour_hand, writer
mode("logo") mode("logo")
make_hand_shape("second_hand", 125, 25) make_hand_shape("second_hand", 125, 25)
make_hand_shape("minute_hand", 130, 25) make_hand_shape("minute_hand", 115, 25)
make_hand_shape("hour_hand", 90, 25) make_hand_shape("hour_hand", 90, 25)
clockface(160) clockface(160)
second_hand = Turtle() second_hand = Turtle()
@ -74,10 +88,10 @@ def setup():
hand.speed(0) hand.speed(0)
ht() ht()
writer = Turtle() writer = Turtle()
#writer.mode("logo")
writer.ht() writer.ht()
writer.pu() writer.pu()
writer.bk(85) writer.bk(85)
display_date_time()
def wochentag(t): def wochentag(t):
wochentag = ["Monday", "Tuesday", "Wednesday", wochentag = ["Monday", "Tuesday", "Wednesday",
@ -99,18 +113,11 @@ def tick():
stunde = t.hour + minute/60.0 stunde = t.hour + minute/60.0
try: try:
tracer(False) # Terminator can occur here tracer(False) # Terminator can occur here
writer.clear()
writer.home()
writer.forward(65)
writer.write(wochentag(t),
align="center", font=("Courier", 14, "bold"))
writer.back(150)
writer.write(datum(t),
align="center", font=("Courier", 14, "bold"))
writer.forward(85)
second_hand.setheading(6*sekunde) # or here second_hand.setheading(6*sekunde) # or here
minute_hand.setheading(6*minute) minute_hand.setheading(6*minute)
hour_hand.setheading(30*stunde) hour_hand.setheading(30*stunde)
if t.day != current_day:
display_date_time()
tracer(True) tracer(True)
ontimer(tick, 100) ontimer(tick, 100)
except Terminator: except Terminator:

1
Misc/NEWS.d/next/Library/2024-08-28-19-27-35.gh-issue-123370.SPZ9Ux.rst Normal file
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@ -0,0 +1 @@
Fix the canvas not clearing after running turtledemo clock.