Python - wx.StaticText expand to the left?

[dodle]

I am trying to create a caculator screen widget, but I am having problems with the display. Whenever I expand the StaticText's label with more characters, it expands to the right so the characters disappear out of the widget's view.


import wx

class Screen(wx.Frame):
def __init__(self, parent, id, title):
wx.Frame.__init__(self, parent, id, title, wx.DefaultPosition, wx.DefaultSize)#size=(100,35), style=wx.SUNKEN_BORDER)

# Attributes for Calculator Screen
#self.AcceptsFocus()
#self.AcceptsFocusFromKeyboard()
#self.CenterOnParent()
self.SetCursor(wx.StockCursor(wx.CURSOR_IBEAM))

# Colors for display
xwhite = "#ffffff"
xblack = "#000000"

self.SetBackgroundColour(xblack)
self.SetForegroundColour(xwhite)

# Calculator Display
self.disp_out = wx.StaticText(self, -1, "0.")
self.disp_out.SetForegroundColour(xwhite)

# Stores values to later be added to the display
self.num_key = None
self.num_key = self.Bind(wx.EVT_KEY_DOWN, self.OnKey)

# Layout of the display
h_sizer = wx.BoxSizer(wx.HORIZONTAL)
h_sizer.Add(self.disp_out, 1, wx.ALIGN_CENTER_VERTICAL|wx.RIGHT, 5)

screen_sizer = wx.BoxSizer(wx.VERTICAL)
screen_sizer.Add(h_sizer, 1, wx.ALIGN_RIGHT)

self.SetAutoLayout(True)
self.SetSizer(screen_sizer)
self.Layout()

def Clear(self):
self.disp_out.SetLabel("")

def Oppose(self):
pass

def GetValue(self):
pass

def OnGetVal(self, event_object):
print event_object
if event_object in (324, 48):
self.num_key = "0"
elif event_object in (325, 49):
self.num_key = "1"
elif event_object in (326, 50):
self.num_key = "2"
elif event_object in (327, 51):
self.num_key = "3"
elif event_object in (328, 52):
self.num_key = "4"
elif event_object in (329, 53):
self.num_key = "5"
elif event_object in (330, 54):
self.num_key = "6"
elif event_object in (331, 55):
self.num_key = "7"
elif event_object in (332, 56):
self.num_key = "8"
elif event_object in (333, 57):
self.num_key = "9"
else:
pass
return self.num_key

def OnKey(self, event):
event_object = event.GetKeyCode()
dispVal = self.disp_out.GetLabel()

self.OnGetVal(event_object)

dispSplit = dispVal.split(".")

I0 = dispSplit[0].split()
I0.append(str(self.num_key))
I0joined = "".join(I0)

dispSplit[0] = I0joined

joinVal = ".".join(dispSplit)

self.disp_out.SetLabel(joinVal)
self.disp_out.Refresh()

#Remove this when finished
class MyApp(wx.App):
def OnInit(self):
frame = Screen(None, -1, "Calc")
frame.Show(True)
self.SetTopWindow(frame)
return True

app = MyApp(0)
app.MainLoop()

Is there some way to set a boundary on the right side, or just make the text expand to the left?

I've included a screenshot of what it looks like when the text goes out of view.