Prerequisites : Introduction to tkinter | Morse Code Translator
Python offers multiple options for developing a GUI (Graphical User Interface). Out of all the GUI methods, Tkinter is the most commonly used method. Python with Tkinter outputs the fastest and easiest way to create GUI applications. In this article, we will learn how to create a Morse code translator application using Tkinter.
To create a tkinter :
- Importing the module – tkinter
- Create the main window (container)
- Add any number of widgets to the main window.
- Apply the event Trigger on the widgets.
Below is what the GUI looks like:
Let’s create a GUI based Morse Code Translator application that can convert Morse code into English code and vice -versa.
Below is the implementation :
Python3
# import all functions from the tkinter from tkinter import *# import messagebox class from tkinter from tkinter import messagebox# Create a GUI window root = Tk()# create a global variables variable1 = StringVar(root) variable2 = StringVar(root) # initialise the variables variable1.set("lang-code") variable2.set("lang-code") ''' VARIABLE KEY 'cipher' -> 'stores the morse translated form of the english string' 'decipher' -> 'stores the english translated form of the morse string' 'citext' -> 'stores morse code of a single character' 'i' -> 'keeps count of the spaces between morse characters' 'message' -> 'stores the string to be encoded or decoded' ''' # Dictionary representing the morse code chart MORSE_CODE_DICT = { 'A':'.-', 'B':'-...', 'C':'-.-.', 'D':'-..', 'E':'.', 'F':'..-.', 'G':'--.', 'H':'....', 'I':'..', 'J':'.---', 'K':'-.-', 'L':'.-..', 'M':'--', 'N':'-.', 'O':'---', 'P':'.--.', 'Q':'--.-', 'R':'.-.', 'S':'...', 'T':'-', 'U':'..-', 'V':'...-', 'W':'.--', 'X':'-..-', 'Y':'-.--', 'Z':'--..', '1':'.----', '2':'..---', '3':'...--', '4':'....-', '5':'.....', '6':'-....', '7':'--...', '8':'---..', '9':'----.', '0':'-----', ', ':'--..--', '.':'.-.-.-', '?':'..--..', '/':'-..-.', '-':'-....-', '(':'-.--.', ')':'-.--.-'} # Function to clear both the text areasdef clearAll() : # whole content of text area is deleted language1_field.delete(1.0, END) language2_field.delete(1.0, END)# Function to perform conversion from one# language to anotherdef convert() : # get a whole input content from text box # ignoring \n from the text box content message = language1_field.get("1.0", "end")[:-1] # get the content from variable1 and 2, check their values if variable1.get() == variable2.get() : # show the error message messagebox.showerror("Can't Be same Language") return elif variable1.get() == "Eng" and variable2.get() == "Morse" : # function call rslt = encrypt(message) elif variable1.get() == "Morse" and variable2.get() == "Eng" : # function call rslt = decrypt(message) else : # show the error message messagebox.showerror("please choose valid language code..") return # insert content into text area # from rslt variable language2_field.insert('end -1 chars', rslt) # Function to encrypt the string # according to the morse code chart def encrypt(message): cipher = '' for letter in message: if letter != ' ': # Looks up the dictionary and adds the # corresponding morse code # along with a space to separate # morse codes for different characters cipher += MORSE_CODE_DICT[letter] + ' ' else: # 1 space indicates different characters # and 2 indicates different words cipher += ' ' return cipher # Function to decrypt the string # from morse to english def decrypt(message): # extra space added at the end to access the # last morse code message += ' ' decipher = '' citext = '' for letter in message: # checks for space if (letter != ' '): # counter to keep track of space i = 0 # storing morse code of a single character citext += letter # in case of space else: # if i = 1 that indicates a new character i += 1 # if i = 2 that indicates a new word if i == 2 : # adding space to separate words decipher += ' ' else: # accessing the keys using their values # (reverse of encryption) decipher += list(MORSE_CODE_DICT.keys())[ list(MORSE_CODE_DICT .values()).index(citext)] citext = '' return decipher # Driver code if __name__ == "__main__" : # Set the background colour of GUI window root.configure(background = 'light green') # Set the configuration of GUI window (WidthxHeight) root.geometry("400x350") # set the name of tkinter GUI window root.title("Translator") # Create Welcome to Morse Code Translator label headlabel = Label(root, text = 'Welcome to Morse Code Translator', fg = 'black', bg = "red") # Create a "One Language " label label1 = Label(root, text = "One Language ", fg = 'black', bg = 'dark green') # Create a "From Language " label label2 = Label(root, text = "From Language", fg = 'black', bg = 'dark green') # Create a "To Language " label label3 = Label(root, text = "To Language ", fg = 'black', bg = 'dark green') # Create a "Converted Language " label label4 = Label(root, text = "Converted Language ", fg = 'black', bg = 'dark green') # grid method is used for placing # the widgets at respective positions # in table like structure . headlabel.grid(row = 0, column = 1) label1.grid(row = 1, column = 0) label2.grid(row = 2, column = 0) label3.grid(row = 3, column = 0) label4.grid(row = 5, column = 0) # Create a text area box # for filling or typing the information. language1_field = Text(root, height = 5, width = 25, font = "lucida 13") language2_field = Text(root, height = 5, width = 25, font = "lucida 13") # padx keyword argument used to set padding along x-axis . language1_field.grid(row = 1, column = 1, padx = 10) language2_field.grid(row = 5, column = 1, padx = 10) # list of language codes languageCode_list = ["Eng", "Morse"] # create a drop down menu using OptionMenu function # which takes window name, variable and choices as # an argument. use * before the name of the list, # to unpack the values FromLanguage_option = OptionMenu(root, variable1, *languageCode_list) ToLanguage_option = OptionMenu(root, variable2, *languageCode_list) FromLanguage_option.grid(row = 2, column = 1, ipadx = 10) ToLanguage_option.grid(row = 3, column = 1, ipadx = 10) # Create a Convert Button and attached # with convert function button1 = Button(root, text = "Convert", bg = "red", fg = "black", command = convert) button1.grid(row = 4, column = 1) # Create a Clear Button and attached # with clearAll function button2 = Button(root, text = "Clear", bg = "red", fg = "black", command = clearAll) button2.grid(row = 6, column = 1) # Start the GUI root.mainloop() |
Output :
