pythonが書いたテキストエディタ

 
  
#!/usr/bin/env python 
  
#-*- coding: utf-8 -*- 
  
#============================================================================= 
  
#     FileName: 
  
#         Desc: 
  
#       Author: ToughGuy 
  
#      Version: 0.0.1 
  
#   LastChange: 2013-02-20 14:52:11 
  
#      History: 
  
#============================================================================= 
   
  
from Tkinter import *
import tkMessageBox,tkFileDialog
import platform
 
  
# nl = os.linesep
 
  
def openfile():
    global filename             #   global       ，         
    systype = platform.system() #       
    if systype == 'windows':
        basedir = 'c:\\'
    else:
        basedir = '/'
    filename = tkFileDialog.askopenfilename(initialdir=basedir)
    try:
        fobj_r = open(filename, 'r')
    except IOError, errmsg:
        print '*** Failed open file:', errmsg
    else:
        editbox.delete(1.0, END)
        for eachline in fobj_r:
            editbox.insert(INSERT, eachline)
        fobj_r.close()
 
  
def savefile():
    save_data = editbox.get(1.0, END)
    try:
        fobj_w = open(filename, 'w')
        fobj_w.writelines(save_data.encode('utf-8'))
        fobj_w.close()
        tkMessageBox.showinfo(title='  ',
                message='    ')
    except IOError, errmsg:
        tkMessageBox.showwarning(title='    ', message='        ')
        tkMessageBox.showwarning(title='    ', message=errmsg)
    except NameError:
        tkMessageBox.showwarning(title='    ', message='     ')
def showlinenum():
    tkMessageBox.showinfo(title='  ',
            message='           ,       .')
def destroy_ui(ui):
    ui.destroy()
 
  
def aboutauthor():
    author_ui = Toplevel()
    author_ui.title('  ')
    author_ui.geometry('200x80')
    about_string = Label(author_ui,
            text="  : ToughGuy")
    confirmbtn = Button(author_ui, text='  ',
            command=lambda:destroy_ui(author_ui))
    about_string.pack()
    confirmbtn.pack()
    # author_ui.mainloop()
 
  
def CreateMenus():
    #      
    Menubar = Menu(root)
 
  
    #       
    filemenu = Menu(Menubar, tearoff=0)
    filemenu.add_command(label='    ', command=openfile)
    filemenu.add_command(label='    ', command=savefile)
    filemenu.add_command(label='  ', command=lambda:destroy_ui(root))
    Menubar.add_cascade(label='  ', menu=filemenu)
 
  
    #       
    editmenu = Menu(Menubar, tearoff=0)
    editmenu.add_command(label='    ', command=showlinenum)
    Menubar.add_cascade(label='  ', menu=editmenu)
 
  
    #       
    helpmenu = Menu(Menubar, tearoff=0)
    helpmenu.add_command(label='    ', command=aboutauthor)
    Menubar.add_cascade(label='  ', menu=helpmenu)
    root.config(menu=Menubar)
 
  
root = Tk()
root.title('     ')
root.geometry('500x400')
CreateMenus()
editbox = Text(root, width=70, height=25, bg='white')
editbox.pack(side=TOP, fill=X)
root.mainloop()