import wx import wx.xrc as xrc #---------------------------------------------------------------------- resourceText = r''' 200,100 10,10 ''' #---------------------------------------------------------------------- class MyCustomPanel(wx.Panel): def __init__(self): p = wx.PrePanel() # the Create step is done by XRC. self.PostCreate(p) self.Bind(wx.EVT_WINDOW_CREATE, self.OnCreate) self.Bind(wx.EVT_SIZE, self.OnSize) def OnCreate(self, evt): # This is the little bit of customization that we do for this # silly example. It could just as easily have been done in # the resource. We do it in the EVT_WINDOW_CREATE handler # because the window doesn't really exist yet in the __init__. if self is evt.GetEventObject(): t = wx.StaticText(self, -1, "MyCustomPanel") f = t.GetFont() f.SetWeight(wx.BOLD) f.SetPointSize(f.GetPointSize()+2) t.SetFont(f) self.t = t # On OSX the EVT_SIZE happens before EVT_WINDOW_CREATE !?! # so give it another kick wx.CallAfter(self.OnSize, None) evt.Skip() def OnSize(self, evt): if hasattr(self, 't'): sz = self.GetSize() w, h = self.t.GetTextExtent(self.t.GetLabel()) print w, h self.t.SetPosition(((sz.width-w)/2, (sz.height-h)/2)) #---------------------------------------------------------------------- class TestPanel(wx.Panel): def __init__(self, parent, log): self.log = log wx.Panel.__init__(self, parent, -1) # make the components label = wx.StaticText(self, -1, "The lower panel was built from this XML:") label.SetFont(wx.Font(12, wx.SWISS, wx.NORMAL, wx.BOLD)) text = wx.TextCtrl(self, -1, resourceText, style=wx.TE_READONLY|wx.TE_MULTILINE) text.SetInsertionPoint(0) line = wx.StaticLine(self, -1) # Load the resource res = xrc.EmptyXmlResource() res.LoadFromString(resourceText) # Now create a panel from the resource data panel = res.LoadPanel(self, "MyPanel") # and do the layout sizer = wx.BoxSizer(wx.VERTICAL) sizer.Add(label, 0, wx.EXPAND|wx.TOP|wx.LEFT, 5) sizer.Add(text, 1, wx.EXPAND|wx.ALL, 5) sizer.Add(line, 0, wx.EXPAND) sizer.Add(panel, 1, wx.EXPAND|wx.ALL, 5) self.SetSizer(sizer) self.SetAutoLayout(True) #---------------------------------------------------------------------- def runTest(frame, nb, log): win = TestPanel(nb, log) return win #---------------------------------------------------------------------- overview = """

wx.XmlResourceSubclass

Sometimes it is necessary to use custom classes, but you still want them to be created from XRC. The subclass XRC attribute allows you to do that. """ if __name__ == '__main__': import sys,os import run run.main(['', os.path.basename(sys.argv[0])] + sys.argv[1:])