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# Some function for redrawing using the given colour. Ideally, it
# shouldn't do anything if the colour is the same as the one used
# before.
def Redraw(self, colour):
...
def OnColourChanged(self, event):
self.Redraw(event.GetColour())
def SelectNewColour(self):
data = wx.ColourData()
data.SetColour(initialColourToUse)
dlg = wx.ColourDialog(self, data)
dlg.Bind(wx.EVT_COLOUR_CHANGED, self.OnColourChanged)
if (dlg.ShowModal() == wx.ID_OK)
# Colour did change.
else
# Colour didn't change.
# This call is unnecessary under platforms generating
# wx.EVT_COLOUR_CHANGED if the dialog was accepted and unnecessary
# under the platforms not generating this event if it was cancelled,
# so we could check for the different cases explicitly to avoid it,
# but it's simpler to just always call it.
Redraw(data.GetColour())
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