Fix bug when switching level mode
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@ -293,7 +293,6 @@ class HistogramLUTItem(GraphicsWidget):
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self.levelMode = mode
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self._showRegions()
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self.imageChanged()
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# do our best to preserve old levels
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if mode == 'mono':
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@ -303,6 +302,11 @@ class HistogramLUTItem(GraphicsWidget):
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levels = [oldLevels] * 4
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self.setLevels(rgba=levels)
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# force this because calling self.setLevels might not set the imageItem
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# levels if there was no change to the region item
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self.imageItem().setLevels(self.getLevels())
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self.imageChanged()
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self.update()
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def _showRegions(self):
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