wxPython and loading multiple panels (code included)

[flupke]

Hi,

i need to develop a gui which will load several "windows" depending on
what the users selects in the menu and i thought i could accomplish this
with panels.
What i'm trying to do to test this is load an initial panel and then
when the user hits a button load a second panel. This doesn't seem to work.

1. what's the appropriate way of switching panels?
2. the loadNewPanel function seem wrong. I always get loading panel two".

Thanks,
Benedict

=============== ===== multi.py =============== ============
import wx
from multi_panel import *

active_frame = 1

class MyFrame(wx.Fram e):
def __init__(self, *args, **kwds):
kwds["style"] = wx.DEFAULT_FRAM E_STYLE
wx.Frame.__init __(self, *args, **kwds)
self.panel = PanelOne(self)
self.__set_prop erties()
self.__do_layou t()

def __set_propertie s(self):
self.SetTitle(" frame_1")

def __do_layout(sel f):
self.sizer_1 = wx.BoxSizer(wx. VERTICAL)
self.sizer_1.Ad d(self.panel, 1, wx.EXPAND, 0)
self.SetAutoLay out(True)
self.SetSizer(s elf.sizer_1)
self.sizer_1.Fi t(self)
self.sizer_1.Se tSizeHints(self )
self.Layout()

def loadNewPanel(se lf,invoker):
if isinstance(invo ker,PanelOne):
print "loading panel two"
self.panel = PanelTwo(self)
else:
print "loading panel one"
self.panel = PanelOne(self)
self.sizer_1.Fi t(self)
self.sizer_1.Se tSizeHints(self )

class MyApp(wx.App):
def OnInit(self):
wx.InitAllImage Handlers()
frame = MyFrame(None, -1, "This is a
wx.Frame",pos=( 0,0),size=(640, 480),style = wx.DEFAULT_FRAM E_STYLE)
self.SetTopWind ow(frame)
frame.Show()
return 1

if __name__ == "__main__":
app = MyApp(0)
app.MainLoop()
=============== ===== multi.py =============== ============

and

=============== ===== panels.py =============== ============
import wx

class PanelOne(wx.Pan el):
def __init__(self,p arent):
wx.Panel.__init __(self, parent, -1)
self.parent = parent
self.label = wx.StaticText(s elf, -1, "panel one")
self.switch_pan el = wx.Button(self, -1, "Switch to panel two",
(50,50))
self.Bind(wx.EV T_BUTTON, self.__OnButton , self.switch_pan el)
self.__do_layou t()

def __do_layout(sel f):
self.grid_sizer = wx.GridSizer(5, 5, 4, 4)
self.grid_sizer .Add(self.label , 0, wx.FIXED_MINSIZ E, 0)
self.grid_sizer .Add(self.switc h_panel, 0, wx.FIXED_MINSIZ E, 0)

self.SetAutoLay out(True)
self.SetSizer(s elf.grid_sizer)

self.grid_sizer .Fit(self)
self.grid_sizer .SetSizeHints(s elf)

def __OnButton(self ,event):
print "OnButton"
self.parent.loa dNewPanel(self)

class PanelTwo(wx.Pan el):
def __init__(self,p arent):
wx.Panel.__init __(self, parent, -1)
self.label = wx.StaticText(s elf, -1, "panel two")
self.switch_pan el = wx.Button(self, -1, "Switch to panel one",
(50,50))
self.Bind(wx.EV T_BUTTON, self.__OnButton , self.switch_pan el)
self.__do_layou t()

def __do_layout(sel f):
self.grid_sizer = wx.GridSizer(5, 5, 4, 4)
self.grid_sizer .Add(self.label , 0, wx.FIXED_MINSIZ E, 0)
self.grid_sizer .Add(self.switc h_panel, 0, wx.FIXED_MINSIZ E, 0)

self.SetAutoLay out(True)
self.SetSizer(s elf.grid_sizer)

self.grid_sizer .Fit(self)
self.grid_sizer .SetSizeHints(s elf)

def __OnButton(self ,event):
print "OnButton"
self.parent.loa dNewPanel(self)
=============== ===== panels.py =============== ============