Answer
code
Work Step by Step
# 9.3 (Select geometric figures) Write a program that draws a rectangle or an oval, as
# shown in Figure 9.23. The user selects a figure from a radio button and specifies
# whether it is filled by selecting a check button.
from tkinter import *
class GUI:
def __init__(self):
window = Tk()
self.v1 = IntVar()
self.v2 = IntVar()
self.c = Canvas(window, width=200, height=200, bg="white")
self.c.pack()
f = Frame(window)
rrb = Radiobutton(f, text="Rectangle", variable=self.v1, value=1, command=self.draw).grid(row=1, column=1)
orb = Radiobutton(f, text="Oval", variable=self.v1, value=2, command=self.draw).grid(row=1, column=2)
fillcb = Checkbutton(f, text="Filled", variable=self.v2).grid(row=1, column=3)
f.pack()
window.mainloop()
def draw(self):
self.c.delete("r","o")
if self.v2.get() == 1:
if self.v1.get() == 1:
self.c.create_rectangle(10, 10, 200, 100, fill="blue", tag="r")
else:
self.c.create_oval(10, 10, 200, 100, fill="blue", tag="o")
else:
if self.v1.get() == 1:
self.c.create_rectangle(10, 10, 200, 100,tag="r")
else:
self.c.create_oval(10, 10, 200, 100,tag="o")
GUI()
