This program implements a simple Notepad application using Python's Tkinter library to create a graphical user interface. This application allows the user to write, edit, open and save text files.
Functionalities of the application:
◆ Creating a main window:
The Notepad class inherits tk.Tk and creates the main application window.
Set the window title (self.title("Notepad")).
Create a Text widget (self.text) where the user can enter and edit text.
◆ Creating a navigation menu:
• Add a File menu with options:
New - creates a new document (deletes the current text).
Open - opens an existing text file.
Save - saves the current content to a file.
Exit - closes the application.
• Add an Edit menu with options:
Cut - cuts the selected text.
Copy - copies the selected text.
Paste - inserts the copied text.
◆ Main application functions:
new_file(): deletes the current text and resets the window title.
open_file(): opens a dialog box for selecting a text file, then displays its contents in the editor.
save_file(): saves the current text to a user-selected file.
cut(), copy(), paste(): use Tkinter's default functionality for editing operations.
◆ Initializing and running the application:
if name == "main": ensure that the application only runs when the file is executed directly.
notepad = Notepad() creates the application instance.
notepad.mainloop() starts the main Tkinter loop to keep the window active.