这篇文章主要介绍了python基于Tkinter库实现简单文本编辑器,实例分析了Python使用Tkinter库实现简单桌面应用程序的技巧,具有一定参考借鉴价值,需要的朋友可以参考下
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：
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 ## {{{ 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。
