欢迎您访问程序员文章站本站旨在为大家提供分享程序员计算机编程知识!
您现在的位置是: 首页  >  后端开发

python基于Tkinter库实现简单文本编辑器实例

程序员文章站 2022-05-14 14:53:19
...
本文实例讲述了python基于Tkinter库实现简单文本编辑器的方法。分享给大家供大家参考。具体实现方法如下:
## {{{ http://code.activestate.com/recipes/578568/ (r1)
from Tkinter import * 
from tkSimpleDialog import askstring
from tkFileDialog  import asksaveasfilename
from tkMessageBox import askokcancel     
class Quitter(Frame):            
  def __init__(self, parent=None):     
    Frame.__init__(self, parent)
    self.pack()
    widget = Button(self, text='Quit', command=self.quit)
    widget.pack(expand=YES, fill=BOTH, side=LEFT)
  def quit(self):
    ans = askokcancel('Verify exit', "Really quit?")
    if ans: Frame.quit(self)
class ScrolledText(Frame):
  def __init__(self, parent=None, text='', file=None):
    Frame.__init__(self, parent)
    self.pack(expand=YES, fill=BOTH)        
    self.makewidgets()
    self.settext(text, file)
  def makewidgets(self):
    sbar = Scrollbar(self)
    text = Text(self, relief=SUNKEN)
    sbar.config(command=text.yview)         
    text.config(yscrollcommand=sbar.set)      
    sbar.pack(side=RIGHT, fill=Y)          
    text.pack(side=LEFT, expand=YES, fill=BOTH)   
    self.text = text
  def settext(self, text='', file=None):
    if file: 
      text = open(file, 'r').read()
    self.text.delete('1.0', END)          
    self.text.insert('1.0', text)         
    self.text.mark_set(INSERT, '1.0')       
    self.text.focus()                
  def gettext(self):                
    return self.text.get('1.0', END+'-1c')     
class SimpleEditor(ScrolledText):            
  def __init__(self, parent=None, file=None): 
    frm = Frame(parent)
    frm.pack(fill=X)
    Button(frm, text='Save', command=self.onSave).pack(side=LEFT)
    Button(frm, text='Cut',  command=self.onCut).pack(side=LEFT)
    Button(frm, text='Paste', command=self.onPaste).pack(side=LEFT)
    Button(frm, text='Find', command=self.onFind).pack(side=LEFT)
    Quitter(frm).pack(side=LEFT)
    ScrolledText.__init__(self, parent, file=file) 
    self.text.config(font=('courier', 9, 'normal'))
  def onSave(self):
    filename = asksaveasfilename()
    if filename:
      alltext = self.gettext()           
      open(filename, 'w').write(alltext)     
  def onCut(self):
    text = self.text.get(SEL_FIRST, SEL_LAST)    
    self.text.delete(SEL_FIRST, SEL_LAST)      
    self.clipboard_clear()       
    self.clipboard_append(text)
  def onPaste(self):                  
    try:
      text = self.selection_get(selection='CLIPBOARD')
      self.text.insert(INSERT, text)
    except TclError:
      pass                   
  def onFind(self):
    target = askstring('SimpleEditor', 'Search String?')
    if target:
      where = self.text.search(target, INSERT, END) 
      if where:                  
        print where
        pastit = where + ('+%dc' % len(target))  
        #self.text.tag_remove(SEL, '1.0', END)   
        self.text.tag_add(SEL, where, pastit)   
        self.text.mark_set(INSERT, pastit)     
        self.text.see(INSERT)          
        self.text.focus()            
if __name__ == '__main__':
  try:
    SimpleEditor(file=sys.argv[1]).mainloop()  
  except IndexError:
    SimpleEditor().mainloop()

希望本文所述对大家的Python程序设计有所帮助。

python基于Tkinter库实现简单文本编辑器实例

声明:本文内容由网友自发贡献,版权归原作者所有,本站不承担相应法律责任。如您发现有涉嫌抄袭侵权的内容,请联系admin@php.cn核实处理。

相关文章

相关视频