CSC111 Programs for Week 13 2015
--D. Thiebaut (talk) 22:40, 25 April 2015 (EDT)
TKDemo0.py
# tkdemo0.py
# D. Thiebaut
# The very basic skeleton of a TKinter program
from tkinter import *
from tkinter import ttk
def main():
rootWindow = Tk()
rootWindow.mainloop()
main()
TKDemo1.py
# tkdemo1.py
# D. Thiebaut
# A Simple TKInter window with a few widgets. Code needs to be added
# to make this functional.
from tkinter import *
from tkinter import ttk
class GUI:
def __init__( self, root ):
# create a button that will clear the text area
button1 = ttk.Button( root, text="Clear", command = self.clear )
button1.grid( row=0, column=0 )
# create another button that will process the text inside the text area
button2 = ttk.Button( root, text="Process", command = self.process )
button2.grid( row=0, column=1 )
# set a check box for selecting Smith email addresses
self.showSmith = IntVar()
self.showSmith.set( 1 ) # make the box checked by default
check1 = ttk.Checkbutton( root, text="Show Smith", variable=self.showSmith )
check1.grid( row=0, column=2 )
# set a check box for selecting Hampshire email addresses
self.showHampshire = IntVar()
self.showHampshire.set( 0 ) # make the box unchecked by default
check2 = ttk.Checkbutton( root, text="Show Hampshire", variable=self.showHampshire )
check2.grid( row=0, column=3 )
def clear( self ):
# this will eventually clear the text area
print( "clear text area" )
return
def process( self ):
# this will eventually process the list of email addresses and sort it
# and remove duplicates.
print( "process email addresses" )
return
def main():
# create an empty window
rootWindow = Tk()
rootWindow.title( "CSC111 TK Demo" )
# create the GUI inside the window
gui = GUI( rootWindow)
# main event loop
rootWindow.mainloop()
main()
TkDemo Full Implementation
- This version allows the user to pick a file in the directory the user navigates too, and then opens the file, reads its contents, and puts it inside the text area.
# tkWindow.py
# D. Thiebaut
# Illustrates how to create a GUI application
# using TKInter.
#
from tkinter import *
from tkinter import ttk
import tkinter.filedialog as fdialog # this is used to find a file in the user's file system
class GUI:
"""A class containing all the widgets and the actions they trigger"""
def __init__( self, root ):
"""constructor. Creates all the widgets, and define the actions to be taken"""
self.root = root
# define button to clear the textArea
button1 = ttk.Button( root, text="Clear", command = self.clear )
button1.grid( row=0, column=0 )
# define button to process textArea
button2 = ttk.Button( root, text="Process", command = self.process )
button2.grid( row=0, column=1 )
# set a check box for Smith
self.showSmith = IntVar()
self.showSmith.set( 1 )
check1 = ttk.Checkbutton( root, text="Show Smith", variable=self.showSmith )
check1.grid( row=0, column=2 )
# set a check box for Hampshire
self.showHampshire = IntVar()
self.showHampshire.set( 0 )
check2 = ttk.Checkbutton( root, text="Show Hampshire", variable=self.showHampshire )
check2.grid( row=0, column=3 )
# add an "Open File" button
button3 = ttk.Button( root, text="Open File", command = self.openFile )
button3.grid( row=0, column=4 )
# create the text area
self.text = Text( root, width=80, height=30, background="ivory" )
self.text.grid( row=1, column=0, columnspan=5 )
def openFile( self ):
""" opens a dialog for the user to pick a file, then tries to open the file, then
reads the file and displays its contents on the text area"""
filename = fdialog.askopenfilename(filetypes = (("Text files", "*.txt"),
("All files", "*.*")))
text = ""
try:
file = open( filename, "r" )
text = file.read()
file.close()
except:
# if there is an exception, i.e. file not found, then we return
return
# if we're here, it means we have some text read from the file.
# display it in the text area.
self.clear()
self.text.insert( INSERT, text )
def clear( self ):
"""clear the text area"""
self.text.delete(1.0, END)
def process( self ):
"""process the email addresses"""
# get the text from the text area.
emails = self.text.get(1.0, END)
self.clear()
# split the string into lines, skip over invalid lines, split
# valid lines into 3 fields, and keep the last field.
# remove the duplicates, and sort the list.
emailList = []
for line in emails.split( "\n" ):
if len( line.strip() ) <= 1:
continue
words = line.split( "," )
if len( words ) != 3:
continue
email = words[-1]
# keep email only if user wants Smith and email contains "@smith"
if email.find( "@smith" ) != -1 and self.showSmith.get()==1:
emailList.append( email )
# keep email only if user wants Hampshire and email contains "@hamp"
if email.find( "@hamp" ) != -1 and self.showHampshire.get()==1:
emailList.append( email )
# remove duplicates and sort
emailList = list( set( emailList ) )
emailList.sort()
# put list joined by "\n" into the text area
self.text.insert( INSERT, "\n".join( emailList ) )
def main():
rootWindow = Tk()
rootWindow.title( "CSC111 TK Demo" )
gui = GUI( rootWindow)
rootWindow.mainloop()
main()
Synthetic Email Addresses
- These are not real addresses. Just random first names made into what looks like real email addresses, formatted as CSV.
1, Anglea, Anglea@hampshire.edu 2, Chun, Chun@smith.edu 3, Codi, Codi@smith.edu 4, Cordelia, Cordelia@smith.edu 5, Cythia, Cythia@smith.edu 6, Evalyn, Evalyn@smith.edu 7, Josie, Josie@smith.edu 8, Karena, Karena@hampshire.edu 9, Lanell, Lanell@smith.edu 10, Lisbeth, Lisbeth@smith.edu 11, Love, Love@smith.edu 12, Natacha, Natacha@smith.edu 13, Romana, Romana@smith.edu 14, Traci, Traci@smith.edu 15, Whitley, Whitley@smith.edu 1, Aja, Aja@hampshire.edu 2, Anna, Anna@hampshire.edu 3, Constance, Constance@smith.edu 4, Jeneva, Jeneva@smith.edu 5, Kaylee, Kaylee@hampshire.edu 6, Leilani, Leilani@smith.edu 7, Margaretta, Margaretta@smith.edu 8, Marline, Marline@smith.edu 9, Matha, Matha@smith.edu 10, Natacha, Natacha@smith.edu 11, Phuong, Phuong@hampshire.edu 12, Sanjuana, Sanjuana@smith.edu 13, Sharie, Sharie@smith.edu 14, Tashina, Tashina@smith.edu 1, Anna, Anna@hampshire.edu 2, Bessie, Bessie@smith.edu 3, Chun, Chun@smith.edu 4, Constance, Constance@smith.edu 5, Edith, Edith@smith.edu 6, Elfrieda, Elfrieda@smith.edu 7, Gema, Gema@smith.edu 8, Johanna, Johanna@smith.edu 9, Margaretta, Margaretta@smith.edu 10, Maryellen, Maryellen@smith.edu 11, Matha, Matha@smith.edu 12, Niesha, Niesha@smith.edu 13, Patrica, Patrica@hampshire.edu 14, Traci, Traci@smith.edu 1, Ammie, Ammie@hampshire.edu 2, Ayana, Ayana@hampshire.edu 3, Birdie, Birdie@smith.edu 4, Candyce, Candyce@smith.edu 5, Constance, Constance@smith.edu 6, Edelmira, Edelmira@smith.edu 7, Erlinda, Erlinda@smith.edu 8, Kali, Kali@hampshire.edu 9, Lisbeth, Lisbeth@smith.edu 10, Mallie, Mallie@smith.edu 11, Margaretta, Margaretta@smith.edu 12, Marlene, Marlene@smith.edu 13, Marline, Marline@smith.edu 14, May, May@smith.edu 15, Nola, Nola@smith.edu 16, Rachael, Rachael@smith.edu 17, Renata, Renata@smith.edu 18, Tamela, Tamela@smith.edu 19, Tashina, Tashina@smith.edu 1, Ammie, Ammie@hampshire.edu 2, Anna, Anna@hampshire.edu 3, Candyce, Candyce@smith.edu 4, Clorinda, Clorinda@smith.edu 5, Dorathy, Dorathy@smith.edu 6, Jennine, Jennine@smith.edu 7, Johanna, Johanna@smith.edu 8, Kandace, Kandace@hampshire.edu 9, Niesha, Niesha@smith.edu 10, Patrica, Patrica@hampshire.edu 11, Rosalina, Rosalina@smith.edu 12, Sharie, Sharie@smith.edu 13, Suk, Suk@smith.edu 14, Yuko, Yuko@smith.edu
