home *** CD-ROM | disk | FTP | other *** search
/ Chip 2007 January, February, March & April / Chip-Cover-CD-2007-02.iso / Pakiet bezpieczenstwa / mini Pentoo LiveCD 2006.1 / mpentoo-2006.1.iso / livecd.squashfs / usr / lib / python2.4 / idlelib / WindowList.py < prev    next >
Text File  |  2005-10-18  |  2KB  |  91 lines
  1. from Tkinter import *
  2.  
  3. class WindowList:
  4.  
  5.     def __init__(self):
  6.         self.dict = {}
  7.         self.callbacks = []
  8.  
  9.     def add(self, window):
  10.         window.after_idle(self.call_callbacks)
  11.         self.dict[str(window)] = window
  12.  
  13.     def delete(self, window):
  14.         try:
  15.             del self.dict[str(window)]
  16.         except KeyError:
  17.             # Sometimes, destroy() is called twice
  18.             pass
  19.         self.call_callbacks()
  20.  
  21.     def add_windows_to_menu(self,  menu):
  22.         list = []
  23.         for key in self.dict.keys():
  24.             window = self.dict[key]
  25.             try:
  26.                 title = window.get_title()
  27.             except TclError:
  28.                 continue
  29.             list.append((title, window))
  30.         list.sort()
  31.         for title, window in list:
  32.             menu.add_command(label=title, command=window.wakeup)
  33.  
  34.     def register_callback(self, callback):
  35.         self.callbacks.append(callback)
  36.  
  37.     def unregister_callback(self, callback):
  38.         try:
  39.             self.callbacks.remove(callback)
  40.         except ValueError:
  41.             pass
  42.  
  43.     def call_callbacks(self):
  44.         for callback in self.callbacks:
  45.             try:
  46.                 callback()
  47.             except:
  48.                 print "warning: callback failed in WindowList", \
  49.                       sys.exc_type, ":", sys.exc_value
  50.  
  51. registry = WindowList()
  52.  
  53. add_windows_to_menu = registry.add_windows_to_menu
  54. register_callback = registry.register_callback
  55. unregister_callback = registry.unregister_callback
  56.  
  57.  
  58. class ListedToplevel(Toplevel):
  59.  
  60.     def __init__(self, master, **kw):
  61.         Toplevel.__init__(self, master, kw)
  62.         registry.add(self)
  63.         self.focused_widget = self
  64.  
  65.     def destroy(self):
  66.         registry.delete(self)
  67.         Toplevel.destroy(self)
  68.         # If this is Idle's last window then quit the mainloop
  69.         # (Needed for clean exit on Windows 98)
  70.         if not registry.dict:
  71.             self.quit()
  72.  
  73.     def update_windowlist_registry(self, window):
  74.         registry.call_callbacks()
  75.  
  76.     def get_title(self):
  77.         # Subclass can override
  78.         return self.wm_title()
  79.  
  80.     def wakeup(self):
  81.         try:
  82.             if self.wm_state() == "iconic":
  83.                 self.wm_withdraw()
  84.                 self.wm_deiconify()
  85.             self.tkraise()
  86.             self.focused_widget.focus_set()
  87.         except TclError:
  88.             # This can happen when the window menu was torn off.
  89.             # Simply ignore it.
  90.             pass
  91.