class Display:
def __init__(self):
self.chain = Chain()
self.C = Canvas()
self.e = Entry(self.C)
self.l = Label(self.C, text="File name:")
self.addbutton = Button(self.C, text="Add file", command=self.addfile)
self.genbutton = Button(self.C, text="Generate", command=self.generate)
self.T = Text(self.C)
self.C.pack()
self.l.pack(side=LEFT)
self.e.pack(side=LEFT)
self.addbutton.pack(side=LEFT)
self.genbutton.pack()
self.T.pack()
mainloop()
def addfile(self):
self.chain.addfile(self.e.get())
self.e.delete(0, END)
def generate(self):
self.T.insert(END, self.chain.makeline())
