#!/usr/bin/python

# Name     : Python/Tk Welcome Message
# Author   : Terrence Ma
# Email    : terrence@terrence.com
# Web      : http://www.terrence.com
# Date     : 08/31/2001
# License  : GNU GPL - http://www.gnu.org/copyleft/gpl.html
# Warranty : No Warranty

# import lib
import time
from Tkinter import *

# procedure set message
def setmessage():
  global inname, outname, timenow

  outname = question_entry.cget("text")
  timenow = time.asctime(time.localtime(time.time()))

  hello_name.configure(textvariable = outname)
  date_time.configure(text = timenow)

# set top window
top = Tk()

# set frame question, hello, date
question = Frame(top, relief = "groove", borderwidth = "2")
hello    = Frame(top)
date     = Frame(top)

# set frame question
inname = "Computer User"

question_question = Label(question, text = "Please enter your name : ")

question_entry    = Entry(question, text = inname, width = "16", relief = "sunken")
question_entry.insert(0, inname)
# bind("<>") needs setmessage(event), button(command) needs setmessage()
# see http://www.pythonware.com/library/tkinter/introduction/
# question_entry.bind("<Return>", setmessage)

question_button   = Button(question, text = "Submit", command = setmessage)

# set frame hello, date
outname = question_entry.cget("text")
timenow = time.asctime(time.localtime(time.time()))

# cget() is not fully implemented, use textvariable
hello_mess01 = Label(hello, text = "Hello")
hello_name   = Label(hello, textvariable = outname)
hello_mess02 = Label(hello, text = ", welcome to this application !")

date_mess01  = Label(date, text  = "Time is now")
date_time    = Label(date, text  = timenow)

# draw frames
top.title("Python/Tk Welcome Message")

question_question.pack(side = "left")
question_entry.pack(side = "left")
question_button.pack(side = "left")

hello_mess01.pack(side = "left")
hello_name.pack(side = "left")
hello_mess02.pack(side = "left")

date_mess01.pack(side = "left")
date_time.pack(side = "left")

question.pack(side = "top")
hello.pack(side = "top")
date.pack(side = "top")

question_entry.focus()
top.mainloop()