[wxPython-users] Re: how do I start PyCrust?

[Robin Dunn]

7stud wrote:
> Robin Dunn <robin <at> alldunn.com> writes:
>> For pywrap to work you need to not automatically create the app and run 
>> the MainLoop when the module is imported.  Try it like this:
>>
>> import wx
>>
>> class MyFrame(wx.Frame):
>>      pass
>>
>> class MyApp(wx.App):
>>      def OnInit(self):
>>          self.frame = MyFrame(None, -1, "Test")
>>          self.frame.Show()
>>          self.SetTopWindow(self.frame)
>>          return True
>>
>> if __name__ == '__main__':
>>      app = MyApp()
>>      app.MainLoop()
>>
>> This way pywrap can import the module and then create the instance of 
>> the application object itself.  It also calls MainLoop.
>>
> 
> When I added the "if __name__" guard, the pycrust window was now the
> first window displayed.  Then I entered the following into pycrust:
> 

They should both be showing up.  Pywrap creates the instance of the app, 
which creates a frame and shows it, and then it creates and shows the 
PyCrust frame, and then it calls MainLoop.


> PyCrust 0.9.5 - The Flakiest Python Shell
> Python 2.4.4 (#1, Oct 18 2006, 10:34:39) 
> [GCC 4.0.1 (Apple Computer, Inc. build 5341)] on darwin
> Type "help", "copyright", "credits" or "license" for more information.
>>>> import wx
>>>> app.frame.panel = wx.Panel(parent=app.frame)
>>>> app.frame.panel.SetBackgroundColour("blue")
> True
>>>> app.frame.panel.Refresh()
>>>> app.frame.panel.ClearBackground()
>>>>
> 
> However, neither Refresh() nor ClearBackground() succeeded in 
> repainting the panel blue.  I also tried Refresh() on the frame, and that 
> didn't work either.  So the "if __name__" guard didn't solve the 
> painting problem.

It's not a painting problem, it is a sizing problem.  You're leaving 
panel at the default (very small) size, and the frame's auto size magic 
only happens when the frame gets a size event.  But since the frame is 
already shown it doesn't get a size event at this point in time.  Try 
calling app.frame.SendSizeEvent().


> 
> If I manually resize the window, then it repaints itself in blue.  

This is the clue you needed.


-- 
Robin Dunn
Software Craftsman
http://wxPython.org  Java give you jitters?  Relax with wxPython!