Hi,
This appears to be a bug - binding EVT_MENU_OPEN will break
EVT_UPDATE_UI. The code below is a sample demonstrating the issue.
I've tested this on both Windows XP and Ubuntu 9.10 and neither work.
In evt_idle I purposely set the update event to False to disable the
menu, but as you can see, it comes through enabled. Commenting out the
call to bind EVT_MENU_OPEN fixes this. I'm going to open a TRAC case
but also thought I'd post here in case it's one of those strange "by
design" platform issues
#!/usr/bin/python
import wx
class GUI(wx.Frame):
def __init__(self, parent):
wx.Frame.__init__(self, parent)
self.make_menu()
self.make_toolbar()
self.do_bindings()
# comment out the bind to see how it causes my problem
self.Bind(wx.EVT_MENU_OPEN, lambda x: x)
self.SetExtraStyle(wx.WS_EX_PROCESS_UI_UPDATES)
def make_menu(self):
menu = wx.MenuBar()
edit = wx.Menu()
edit.Append(wx.ID_UNDO, "Undo")
edit.Append(wx.ID_REDO, "Redo")
menu.Append(edit, "Edit")
self.SetMenuBar(menu)
def make_toolbar(self):
self.toolbar = self.CreateToolBar()
ids = [wx.ID_UNDO, wx.ID_REDO]
arts = [wx.ART_UNDO, wx.ART_REDO]
for _id, art_id in zip(ids, arts):
art = wx.ArtProvider.GetBitmap(art_id, wx.ART_TOOLBAR)
self.toolbar.AddSimpleTool(_id, art)
self.toolbar.Realize()
def do_bindings(self):
self.Bind(wx.EVT_UPDATE_UI, self.update_menus, id=wx.ID_UNDO)
self.Bind(wx.EVT_UPDATE_UI, self.update_menus, id=wx.ID_REDO)
def update_menus(self, event):
event.Enable(False)
···
#------------------------------------------
app = wx.App()
frame = GUI(None)
frame.Show()
app.MainLoop()
