#!/usr/bin/env python

#

# modifications for: http://codeshot.in/pythongui/notepad.php

#

# FB: https://www.facebook.com/groups/learnpython.org/permalink/1180950268636255/

#

import tkinter as tk

from tkinter import filedialog

from tkinter import messagebox

# --- constants ---

# empty

# --- classes ---

class Notepad(tk.Tk):

def __init__(self):

tk.Tk.__init__(self) # Python 2 & 3

#super().__init__() # Python 3 only

self.title("Text Editor")

# add a text box

self.text = tk.Text(self)

self.text.pack()

# menus

menu = tk.Menu(self)

self.config(menu=menu)

# file menu

file_menu = tk.Menu(menu)

menu.add_cascade(label="File", menu=file_menu)

file_menu.add_command(label="Open File", command=self.open_command)

file_menu.add_command(label="Save As", command=self.save_command)

file_menu.add_separator()

file_menu.add_command(label="Exit", command=self.exit_command)

# edit menu

edit_menu = tk.Menu(menu)

menu.add_cascade(label="Edit", menu=edit_menu)

edit_menu.add_command(label="Undo", command=self.dummy)

edit_menu.add_command(label="Redo", command=self.dummy)

edit_menu.add_command(label="Cut", command=self.dummy)

edit_menu.add_command(label="Copy", command=self.dummy)

edit_menu.add_command(label="Paste", command=self.dummy)

# help menu

help_menu = tk.Menu(menu)

menu.add_cascade(label="Help", menu=help_menu)

help_menu.add_command(label="About", command=self.about_command)

def run(self):

# start the engine :)

self.mainloop()

def dummy(self):

messagebox.showinfo("UPS!", "Function not implemented.")

def open_command(self):

file_ = filedialog.askopenfile(mode="r")

if file_:

content = file_.read()

self.text.insert("1.0", content)

file_.close()

def save_command(self):

file_ = filedialog.asksaveasfile(mode="w")

if file_:

content = self.text.get("1.0", tk.END+"-1c") # do we need "-1c" ???

file_.write(content)

file_.close()

def exit_command(self):

if messagebox.askokcancel("Quit", "Do you really want to quit?"):

self.destroy()

def about_command(self):

messagebox.showinfo("About", "Text Editor Version 1.0.0 \nCopyright 2016 \nCreator : Abhishek Singh")

# --- functions ---

# empty

# --- main ---

Notepad().run() # or Notepad().mainloop()