wxPython/samples/wxPIA_book/Chapter-10/disable_item.py

   1 import wx
   2
   3 ID_SIMPLE = wx.NewId()
   4
   5 class MyFrame(wx.Frame):
   6     def __init__(self):
   7         wx.Frame.__init__(self, None, -1,
   8                           "Enable/Disable Menu Example")
   9         p = wx.Panel(self)
  10         self.btn = wx.Button(p, -1, "Disable Item", (20,20))
  11         self.Bind(wx.EVT_BUTTON, self.OnToggleItem, self.btn)
  12
  13         menu = wx.Menu()
  14         menu.Append(ID_SIMPLE, "Simple menu item")
  15         self.Bind(wx.EVT_MENU, self.OnSimple, id=ID_SIMPLE)
  16
  17         menu.AppendSeparator()
  18         menu.Append(wx.ID_EXIT, "Exit")
  19         self.Bind(wx.EVT_MENU, self.OnExit, id=wx.ID_EXIT)
  20
  21         menuBar = wx.MenuBar()
  22         menuBar.Append(menu, "Menu")
  23         self.SetMenuBar(menuBar)
  24
  25
  26     def OnSimple(self, event):
  27         wx.MessageBox("You selected the simple menu item")
  28
  29     def OnExit(self, event):
  30         self.Close()
  31
  32     def OnToggleItem(self, event):
  33         menubar = self.GetMenuBar()
  34         enabled = menubar.IsEnabled(ID_SIMPLE)
  35         menubar.Enable(ID_SIMPLE, not enabled)
  36         self.btn.SetLabel(
  37             (enabled and "Enable" or "Disable") + " Item")
  38
  39
  40 if __name__ == "__main__":
  41     app = wx.PySimpleApp()
  42     frame = MyFrame()
  43     frame.Show()
  44     app.MainLoop()
  45
  46