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POwxPython : Problem updating background color of controls
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copied!<p>[EDIT - Reduced and re-posted code, restated question]</p> <p>I would like to change the background color of a frame (or panel; whichever makes it work). The problem is that the background color of controls on that frame (or panel) don't have their background color updated until I click on the control (the slider control, specifically).</p> <p>Any ideas on how to fix this?</p> <p>Here's some demo code:</p> <pre><code>import wx class MyFrame(wx.Frame): def __init__(self, *args, **kwds): kwds["style"] = wx.DEFAULT_FRAME_STYLE wx.Frame.__init__(self, *args, **kwds) self.panel_1 = wx.Panel(self, -1) self.sliderDarken = wx.Slider(self.panel_1, -1, 206, 0, 255) self.label_3 = wx.StaticText(self.panel_1, -1, "This slider should darken the main panel.\n") self.btnPopup = wx.Button(self.panel_1, -1, "This button will pop up a dialog to dim the panel.") self.__set_properties() self.__do_layout() self.Bind(wx.EVT_COMMAND_SCROLL, self.onDarken, self.sliderDarken) self.Bind(wx.EVT_BUTTON, self.onDialogPopup, self.btnPopup) def __set_properties(self): self.SetTitle("Main Frame") def __do_layout(self): sizer_1 = wx.BoxSizer(wx.VERTICAL) sizer_3 = wx.BoxSizer(wx.HORIZONTAL) sizer_3.Add(self.sliderDarken, 0, 0, 0) sizer_3.Add(self.label_3, 0, 0, 0) sizer_3.Add(self.btnPopup, 0, 0, 0) self.panel_1.SetSizer(sizer_3) sizer_1.Add(self.panel_1, 1, wx.EXPAND, 0) self.SetSizer(sizer_1) sizer_1.Fit(self) self.Layout() def onDarken(self, event): self.panel_1.SetBackgroundColour(wx.Colour(self.sliderDarken.GetValue(),self.sliderDarken.GetValue(),self.sliderDarken.GetValue())) self.panel_1.Refresh() def onDialogPopup(self, event): dlgPopup=MyDialog1(None) dlgPopup.Show() class MyDialog1(wx.Dialog): def __init__(self, *args, **kwds): kwds["style"] = wx.DEFAULT_DIALOG_STYLE wx.Dialog.__init__(self, *args, **kwds) self.sliderDarkenPopup = wx.Slider(self, -1, 206, 0, 255, style=wx.SL_HORIZONTAL|wx.SL_AUTOTICKS|wx.SL_LABELS) self.label_2 = wx.StaticText(self, -1, "This slider should darken the panel on the main frame.") self.__set_properties() self.__do_layout() self.Bind(wx.EVT_COMMAND_SCROLL, self.onDarkenPopup, self.sliderDarkenPopup) def __set_properties(self): self.SetTitle("Dimmer Pop up") def __do_layout(self): sizer_2 = wx.BoxSizer(wx.HORIZONTAL) sizer_2.Add(self.sliderDarkenPopup, 0, 0, 0) sizer_2.Add(self.label_2, 0, 0, 0) self.SetSizer(sizer_2) sizer_2.Fit(self) self.Layout() def onDarkenPopup(self, event): frame_1.panel_1.SetBackgroundColour(wx.Colour(self.sliderDarkenPopup.GetValue(),self.sliderDarkenPopup.GetValue(),self.sliderDarkenPopup.GetValue())) frame_1.panel_1.Refresh() if __name__ == "__main__": app = wx.PySimpleApp(0) wx.InitAllImageHandlers() frame_1 = MyFrame(None, -1, "") app.SetTopWindow(frame_1) frame_1.Show() app.MainLoop() </code></pre>

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