1 # base class for tk common dialogues 2 # 3 # this module provides a base class for accessing the common 4 # dialogues available in Tk 4.2 and newer. use filedialog, 5 # colorchooser, and messagebox to access the individual 6 # dialogs. 7 # 8 # written by Fredrik Lundh, May 1997 9 # 10 11 from tkinter import * 12 13 class Dialog: 14 15 command = None 16 17 def __init__(self, master=None, **options): 18 self.master = master 19 self.options = options 20 if not master and options.get('parent'): 21 self.master = options['parent'] 22 23 def _fixoptions(self): 24 pass # hook 25 26 def _fixresult(self, widget, result): 27 return result # hook 28 29 def show(self, **options): 30 31 # update instance options 32 for k, v in options.items(): 33 self.options[k] = v 34 35 self._fixoptions() 36 37 # we need a dummy widget to properly process the options 38 # (at least as long as we use Tkinter 1.63) 39 w = Frame(self.master) 40 41 try: 42 43 s = w.tk.call(self.command, *w._options(self.options)) 44 45 s = self._fixresult(w, s) 46 47 finally: 48 49 try: 50 # get rid of the widget 51 w.destroy() 52 except: 53 pass 54 55 return s 56
