Don't attempt to set same level mode again

2018-01-24 17:48:03 -08:00 · 2018-01-24 17:48:03 -08:00 · 019c421ca1
commit 019c421ca1
parent 2db502a9cc
1 changed files with 3 additions and 1 deletions
--- a/pyqtgraph/graphicsItems/HistogramLUTItem.py
+++ b/pyqtgraph/graphicsItems/HistogramLUTItem.py
@ -289,8 +289,10 @@ class HistogramLUTItem(GraphicsWidget):
        """
        assert mode in ('mono', 'rgba')
        
-        oldLevels = self.getLevels()
+        if mode == self.levelMode:
+            return
        
+        oldLevels = self.getLevels()
        self.levelMode = mode
        self._showRegions()