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author | Martin v. Löwis <martin@v.loewis.de> | 2008-06-10 04:44:07 (GMT) |
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committer | Martin v. Löwis <martin@v.loewis.de> | 2008-06-10 04:44:07 (GMT) |
commit | 97cf99fc7e8c56868711f7c91c3b1e37e4c66cba (patch) | |
tree | 6b43643ebc4dc74dd084df06e9163134818423bf /Demo/turtle/tdemo_colormixer.py | |
parent | b38fea34bfc67ab5780804a511efe34f49d11e45 (diff) | |
download | cpython-97cf99fc7e8c56868711f7c91c3b1e37e4c66cba.zip cpython-97cf99fc7e8c56868711f7c91c3b1e37e4c66cba.tar.gz cpython-97cf99fc7e8c56868711f7c91c3b1e37e4c66cba.tar.bz2 |
Patch #3064: Port new turtle module and demos to 3.0.
Diffstat (limited to 'Demo/turtle/tdemo_colormixer.py')
-rw-r--r-- | Demo/turtle/tdemo_colormixer.py | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/Demo/turtle/tdemo_colormixer.py b/Demo/turtle/tdemo_colormixer.py new file mode 100644 index 0000000..93179b3 --- /dev/null +++ b/Demo/turtle/tdemo_colormixer.py @@ -0,0 +1,60 @@ +# colormixer + +from tkinter.turtle import Screen, Turtle, mainloop +import sys +sys.setrecursionlimit(20000) # overcomes, for now, an instability of Python 3.0 + +class ColorTurtle(Turtle): + + def __init__(self, x, y): + Turtle.__init__(self) + self.shape("turtle") + self.resizemode("user") + self.shapesize(3,3,5) + self.pensize(10) + self._color = [0,0,0] + self.x = x + self._color[x] = y + self.color(self._color) + self.speed(0) + self.left(90) + self.pu() + self.goto(x,0) + self.pd() + self.sety(1) + self.pu() + self.sety(y) + self.pencolor("gray25") + self.ondrag(self.shift) + + def shift(self, x, y): + self.sety(max(0,min(y,1))) + self._color[self.x] = self.ycor() + self.fillcolor(self._color) + setbgcolor() + +def setbgcolor(): + screen.bgcolor(red.ycor(), green.ycor(), blue.ycor()) + +def main(): + global screen, red, green, blue + screen = Screen() + screen.delay(0) + screen.setworldcoordinates(-1, -0.3, 3, 1.3) + + red = ColorTurtle(0, .5) + green = ColorTurtle(1, .5) + blue = ColorTurtle(2, .5) + setbgcolor() + + writer = Turtle() + writer.ht() + writer.pu() + writer.goto(1,1.15) + writer.write("DRAG!",align="center",font=("Arial",30,("bold","italic"))) + return "EVENTLOOP" + +if __name__ == "__main__": + msg = main() + print(msg) + mainloop() |