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notepad.py
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#!/usr/bin/env python
# -*- coding: utf-8 -*-
"""
This is a simple Text Editor written in python using the Tkinter library.
************************************************************************
Author: Eduardo Alejandro Grando. *
e-mail: [email protected] *
License: GPL v3 *
************************************************************************
"""
from Tkinter import *
import tkMessageBox
import os,sys,sqlite3
from tkFileDialog import *
#=======================================================================
class FontStlye(object):
def __init__(self,app):
self.top = Toplevel()
self.top.title("Font Style")
#---------------------------------------------------------------
label = Label(self.top,text="Please select a font style...",width=30)
label.pack()
#---------------------------------------------------------------
styles = (
"normal",
"bold",
"italic")
#---------------------------------------------------------------
for style in styles:
Radiobutton(self.top,text=style,variable=app.style,value=style).pack(anchor=W)
#---------------------------------------------------------------
frame = Frame(self.top)
frame.pack()
applyButton = Button(frame,text="Apply",command=self.applyfontstyle)
applyButton.pack(side=LEFT)
acceptButton = Button(frame,text="Accept",command=self.applyfontstyle_exit)
acceptButton.pack(side=RIGHT)
#---------------------------------------------------------------
self.app = app
def applyfontstyle(self):
self.app.fontstyle = self.app.style.get()
self.app.text.config(font=(self.app.font,self.app.fontsize,self.app.fontstyle))
def applyfontstyle_exit(self):
self.app.fontstyle = self.app.style.get()
self.app.text.config(font=(self.app.font,self.app.fontsize,self.app.fontstyle))
self.top.destroy()
#=======================================================================
class FontType(object):
def __init__(self,app):
self.top = Toplevel()
self.top.title("Font")
#---------------------------------------------------------------
label = Label(self.top,text="Please select a font...",width=30)
label.pack()
#---------------------------------------------------------------
fonts = (
"Arial",
"Courier New",
"Verdana",
"Times New Roman",
"Comic Sans MS",
"Fixedsys",
"MS Sans Serif",
"MS Serif",
"Symbol",
"System")
#---------------------------------------------------------------
for font in fonts:
Radiobutton(self.top,text=font,variable=app.fontvar,value=font).pack(anchor=W)
#---------------------------------------------------------------
frame = Frame(self.top)
frame.pack()
applyButton = Button(frame,text="Apply",command=self.applyfont)
applyButton.pack(side=LEFT)
acceptButton = Button(frame,text="Accept",command=self.applyfont_exit)
acceptButton.pack(side=RIGHT)
#---------------------------------------------------------------
self.app = app
def applyfont(self):
self.app.font = self.app.fontvar.get()
self.app.text.config(font=(self.app.font,self.app.fontsize,self.app.fontstyle))
def applyfont_exit(self):
self.app.font = self.app.fontvar.get()
self.app.text.config(font=(self.app.font,self.app.fontsize,self.app.fontstyle))
self.top.destroy()
#=======================================================================
class FontSize(object):
def __init__(self,app):
self.top = Toplevel()
self.top.title("Font Size")
#---------------------------------------------------------------
label = Label(self.top,text="Please select a font size...",width=30)
label.pack()
#---------------------------------------------------------------
self.scale = Scale(self.top,from_=10,to=25,orient=HORIZONTAL)
self.scale.pack()
self.scale.set(app.fontsize)
#---------------------------------------------------------------
frame = Frame(self.top)
frame.pack()
applyButton = Button(frame,text="Apply",command=self.applyfontsize)
applyButton.pack(side=LEFT)
acceptButton = Button(frame,text="Accept",command=self.applyfontsize_exit)
acceptButton.pack(side=RIGHT)
#---------------------------------------------------------------
self.app = app
def applyfontsize(self):
self.app.fontsize = self.scale.get()
self.app.text.config(font=(self.app.font,self.app.fontsize,self.app.fontstyle))
def applyfontsize_exit(self):
self.app.fontsize = self.scale.get()
self.app.text.config(font=(self.app.font,self.app.fontsize,self.app.fontstyle))
self.top.destroy()
#=======================================================================
#++++++++++++++++++++Main Class+++++++++++++++++++++++++++++++++++++++++
class App(object):
file_name = "Untitled"
changed = False
fontsize = 12 #Hold the font size;
font = "Courier New" #Hold the font;
fontstyle = "normal" #hold the font style;
def __init__(self,master):
self.master = master
master.title("Untitled: NotePad")
master.geometry("640x480")
#--Execute SQLite to retrieve the previous font, fontsize and fontstyle:
self.retrieve_data()
#---------------------------------------------------------------
# add a menu: ..................................................
menubar = Menu(master)
filemenu = Menu(menubar,tearoff=0)
filemenu.add_command(label="New",command=self.new_file)
filemenu.add_command(label="Open",command=self.open_file)
filemenu.add_command(label="Save",command=self.save_file)
filemenu.add_command(label="Save as",command=self.save_as_file)
filemenu.add_command(label="Exit",command=self.exit_menu)
menubar.add_cascade(label="File",menu=filemenu)
#---------------------------------------------------------------
editmenu = Menu(menubar,tearoff=0)
editmenu.add_command(label="Cut",command=self.cut)
editmenu.add_command(label="Copy",command=self.copy)
editmenu.add_command(label="Paste",command=self.paste)
menubar.add_cascade(label="Edit",menu=editmenu)
#---------------------------------------------------------------
optionmenu = Menu(menubar,tearoff=0)
optionmenu.add_command(label="Font",command=self.changefont)
optionmenu.add_command(label="Font Size",command=self.changefontsize)
optionmenu.add_command(label="Font Style",command=self.changefontstyle)
menubar.add_cascade(label="Options",menu=optionmenu)
#---------------------------------------------------------------
master.config(menu=menubar)
#---------------------------------------------------------------
scrollbar = Scrollbar(master)
scrollbar.pack(side=RIGHT,fill=Y)
#---------------------------------------------------------------
self.text = Text(master,yscrollcommand=scrollbar.set)
self.text.bind("<Button-3>",self.popmenu)
self.text.pack(side=LEFT,fill=BOTH,expand=1)
scrollbar.config(command=self.text.yview)
#---------------------------------------------------------------
self.text.bind("<Key>",self.key_callback)
#~ self.text.bind("<Return>",self.return_key)
#---------------------------------------------------------------
master.protocol("WM_DELETE_WINDOW",self.close_window)
#---------------------------------------------------------------
#...............................................................
if len(sys.argv) > 1:
if sys.platform == "win32":
if sys.argv[1][-4:] == ".txt":
try:
f = open(sys.argv[1])
for line in f:
self.text.insert(END,line)
f.close()
self.file_name = sys.argv[1]
self.master.title(self.file_name[self.file_name.rfind("/")+1:] + ": NotePad")
self.changed = False
except IOError:
tkMessageBox.showwarning("Open file","Cannot open this file...")
else:
try:
f = open(sys.argv[1])
for line in f:
self.text.insert(END,line)
f.close()
self.file_name = sys.argv[1]
self.master.title(self.file_name[self.file_name.rfind("/")+1:] + ": NotePad")
self.changed = False
except IOError:
tkMessageBox.showwarning("Open file","Cannot open this file...")
#---------------------------------------------------------------
self.fontvar = StringVar() #hold the variable for radiobutton.
self.fontvar.set(self.font)
#---------------------------------------------------------------
self.style = StringVar() #Hold the style variable for radiobutton
self.style.set(self.fontstyle)
# Set the font, font size and font style: ----------------------
self.text.config(font=(self.font,self.fontsize,self.fontstyle))
#===================================================================
# Retrieve data from a database: -----------------------------------
def retrieve_data(self):
try:
connection = sqlite3.connect("config.db")
cursor = connection.cursor()
cursor.execute("SELECT font FROM info")
self.font = str(cursor.fetchone()[0])
cursor.execute("SELECT size FROM info")
self.fontsize = cursor.fetchone()[0]
cursor.execute("SELECT style FROM info")
self.fontstyle = str(cursor.fetchone()[0])
connection.close()
except sqlite3.OperationalError:
#if the database does not exist we create a new one:
connection = sqlite3.connect("config.db")
cursor = connection.cursor()
cursor.execute("""
CREATE TABLE IF NOT EXISTS info (id INTEGER PRIMARY KEY NOT NULL,
font TEXT NOT NULL, size INTEGER NOT NULL,style TEXT NOT NULL)
""")
#connection.commit()
cursor.execute("""
INSERT INTO info VALUES (1,'Courier New',12,'normal')
""")
connection.commit()
connection.close()
# Update data to the database: -------------------------------------
def update_data(self):
# Store the font, fontsize and fontstyle in a database:
commit = False
connection = sqlite3.connect("config.db")
cursor = connection.cursor()
cursor.execute("SELECT font FROM info")
if self.font != str(cursor.fetchone()[0]):
cursor.execute("UPDATE info SET font = ? WHERE id = 1",(self.font,))
commit = True
cursor.execute("SELECT size FROM info")
if self.fontsize != cursor.fetchone()[0]:
cursor.execute("UPDATE info SET size = ? WHERE id = 1",(self.fontsize,))
commit = True
cursor.execute("SELECT style FROM info")
if self.fontsize != str(cursor.fetchone()[0]):
cursor.execute("UPDATE info SET style = ? WHERE id = 1",(self.fontstyle,))
commit = True
if commit:
connection.commit()
connection.close()
# Option Menu ------------------------------------------------------
def changefontsize(self):
obj = FontSize(self)
def changefont(self):
obj = FontType(self)
def changefontstyle(self):
obj = FontStlye(self)
#...................................................................
def open_file(self):
filename = str(askopenfilename(title="Open File",filetypes=[('text file','.txt')]))
if len(filename) > 0:
self.text.delete("1.0",END)
try:
f = open(filename)
for line in f:
self.text.insert(END,line)
f.close()
self.file_name = filename
self.master.title(filename[filename.rfind("/")+1:] + ": NotePad")
self.changed = False
except IOError:
tkMessageBox.showwarning("Open file","Cannot open this file...")
def save_file(self):
if self.file_name == "Untitled":
self.save_as_file()
else:
f = open(self.file_name,"w")
text = self.text.get("1.0",END).encode("utf-8")
f.write(text)
f.close()
self.changed = False
self.master.title(self.file_name[self.file_name.rfind("/")+1:] + ": NotePad")
def save_as_file(self):
filename = str(asksaveasfilename(title="Save as File",defaultextension=".txt",filetypes=[('text file','.txt')]))
if len(filename) > 0:
f = open(filename,"w")
text = self.text.get("1.0",END).encode("utf-8")
f.write(text)
f.close()
self.file_name = filename
self.master.title(filename[filename.rfind("/")+1:] + ": NotePad")
self.changed = False
def close_window(self):
self.update_data()
if self.changed:
if tkMessageBox.askyesno("Quit","do you want to save the file..."):
if self.file_name == "Untitled":
self.save_as_file()
else:
f = open(self.file_name,"w")
text = self.text.get("1.0",END).encode("utf-8")
f.write(text)
f.close()
self.master.destroy()
else:
self.master.destroy()
else:
self.master.destroy()
def key_callback(self,event):
if not self.changed:
self.master.title("*" + self.file_name[self.file_name.rfind("/")+1:] + ": NotePad")
self.changed = True
def popmenu(self,event):
menu = Menu(self.master,tearoff=0)
menu.add_command(label="Cut",command=self.cut)
menu.add_command(label="Copy",command=self.copy)
menu.add_command(label="Paste",command=self.paste)
menu.post(event.x_root,event.y_root)
def cut(self):
try:
self.copy()
self.text.delete("sel.first","sel.last")
self.master.title("*" + self.file_name[self.file_name.rfind("/")+1:] + ": NotePad")
self.changed = True
except TclError:
pass
def copy(self):
try:
self.text.clipboard_clear()
text = self.text.get("sel.first","sel.last")
self.text.clipboard_append(text)
except TclError:
pass
def paste(self):
try:
text = self.text.selection_get(selection="CLIPBOARD")
self.text.insert(INSERT,text)
self.master.title("*" + self.file_name[self.file_name.rfind("/")+1:] + ": NotePad")
self.changed = True
except TclError:
pass
#----------File menu commands:--------------------------------------
def open_file_menu(self):
if self.changed:
if tkMessageBox.askyesno("Quit","do you want to save the file..."):
if self.file_name == "Untitled":
obj = Save_File(self,"Save as")
else:
f = open(self.file_name,"w")
text = self.text.get("1.0",END).encode("utf-8")
f.write(text)
f.close()
#---------------------------------------------------
self.text.delete("1.0",END)
self.file_name = "Untitled"
self.master.title("Untitled: NotePad")
self.changed = False
obj = Open_File(self,"Open")
def save_as_file_menu(self):
obj = Save_File(self,"Save")
#--------------------------------------------------------------------
def save_file_menu(self):
if self.file_name == "Untitled":
obj = Save_File(self,"Save as")
else:
f = open(self.file_name,"w")
text = self.text.get("1.0",END).encode("utf-8")
f.write(text)
f.close()
self.changed = False
self.master.title(self.file_name[self.file_name.rfind("/")+1:] + ": NotePad")
def new_file(self):
if self.changed:
if tkMessageBox.askyesno("New","Do you want to save the file..."):
if self.file_name == "Untitled":
obj = Save_File(self,"Save as")
else:
f = open(self.file_name,"w")
text = self.text.get("1.0",END).encode("utf-8")
f.write(text)
f.close()
self.text.delete("1.0",END)
self.file_name = "Untitled"
self.master.title("Untitled: NotePad")
self.changed = False
def exit_menu(self):
self.update_data()
if self.changed:
if tkMessageBox.askyesno("Quit","do you want to save the file..."):
if self.file_name == "Untitled":
self.save_as_file()
else:
f = open(self.file_name,"w")
text = self.text.get("1.0",END).encode("utf-8")
f.write(text)
f.close()
self.master.destroy()
else:
self.master.destroy()
else:
self.master.destroy()
#=======================================================================
def main():
root = Tk()
app = App(root)
root.mainloop()
if __name__ == '__main__':
main()