Event handler for launching text color dialog

def OnTextColorDialog(self, event):
        """Event handler for launching text color dialog"""

        dlg = wx.ColourDialog(self.main_window)

        # Ensure the full colour dialog is displayed,
        # not the abbreviated version.
        dlg.GetColourData().SetChooseFull(True)

        if dlg.ShowModal() == wx.ID_OK:

            # Fetch color data
            data = dlg.GetColourData()
            color = data.GetColour().GetRGB()

            post_command_event(self.main_window, self.main_window.TextColorMsg,
                               color=color)

        dlg.Destroy()