event_loop2.py

# event_loop2.py --- color changing window
#      reorganized to incorporate mouse inputs

from graphics import *

def handleKey(k, win):
    if k == "r":
        win.setBackground("pink")
    elif k == "w":
        win.setBackground("white")
    elif k == "g":
        win.setBackground("lightgray")
    elif k == "b":
        win.setBackground("lightblue")

        
def handleClick(pt, win):
    pass
    
    
def main():
    win = GraphWin("Click and Type", 500, 500)

    # Event Loop: handle key presses and mouse clicks until the user
    #    presses the "q" key.
    while True:
        key = win.checkKey()
        if key == "q":  # loop exit
            break
        
        if key:
            handleKey(key, win)

        pt = win.checkMouse()
        if pt:
            handleClick(pt, win)

    win.close()    
main()