python_scripts/TextEditor_python.py at main · nova1987a/python_scripts · GitHub

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#!/usr/bin/python3
# -*- coding: utf-8 -*-
#
# 	A simple text editor
#	Author: Gosen
#	Date:2018/12/18
#


import sys
if (sys.version_info > (3, 0)):
	from tkinter import *
	from tkinter.messagebox import *
	from tkinter import filedialog
	import tkinter.scrolledtext as tkst
	import os
else:
	sys.stdout.write("Sorry, it requires Python 3.x\n")
	sys.exit(1)

#filename = None


#-------------------  Pre-settting ---------------------
root = Tk()
root.title("1st Python Text Editor")
root.minsize(width=400, height=400)
root.maxsize(width=400, height=400)
#text = Text(root, width=400, height=400)
#text.pack()
textPad = tkst.ScrolledText(root, width=400, height=400, wrap=WORD)
textPad.pack()
#-------------------------------------------------------


#------------------ Set-up for specific function ----------------------------------------------
class MenuFunc():
	@staticmethod
	def newFile():
		global filename
		result = askokcancel("Warning", "Would you like to open a new file without saving the data?")
		if result == 1:
			filename = "myfile.dat"
			textPad.delete(0.0, END)
		else:
			return

	@staticmethod
	def saveFile():
		f = filedialog.asksaveasfile(mode='w', parent=root, initialfile='myfile.dat')
		text2save = str(textPad.get(0.0, END))
		f.write(text2save)
		f.close()

	@staticmethod
	def saveAs():
		f = filedialog.asksaveasfile(parent=root, mode='w')
		if f is None:		# asksaveasfile return 'None' if dialog closed with 'Cancel'
			return
		text2save = str(textPad.get(0.0, END))
		try:
			f.write(text2save)
			f.close()
		except:
			showerror(title="Oops,...", message="Unable to save the file...")

	@staticmethod
	def openFile():
		fname = filedialog.askopenfile(mode='r')
	#	print(fname)		#used for debug
		if fname != None:	# no file to open
		# Try to openfile and set the window title
			contents = StringVar()
			contents.set = fname.read()
			textPad.delete('1.0', END)
			textPad.insert('1.0', contents.set)


#		print(contents.set)			# used for debug
			fname.close()
		# display output in the notepad
			w = Label(master=root, textvariable=contents.set)
			w.pack()


#------------------ End of setup ----------------------------------------------------------------


#------------------ Starting creating menu in the notepad --------------------------------------
menubar = Menu(root)
filemenu = Menu(menubar, tearoff=0)
menu_func = MenuFunc()
filemenu.add_command(label="New", command=menu_func.newFile)
filemenu.add_command(label="Open", command=menu_func.openFile)
filemenu.add_command(label="Save", command=menu_func.saveFile)
filemenu.add_command(label="Save As...", command=menu_func.saveAs)
filemenu.add_separator()
filemenu.add_command(label="Quit", command=root.quit)
menubar.add_cascade(label="File", menu=filemenu)


root.config(menu=menubar)
root.mainloop()