Merge pull request #1215 from girder/band-range-sharing

When restyling a source, share band range calculations
girder · Jun 21, 2023 · e3c106d · e3c106d
2 parents 46a83e7 + 3e0fd1e
commit e3c106d
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diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -8,6 +8,7 @@
 ### Improvements
 - Harden the nd2 source to allow it to read more files ([#1207](../../pull/1207))
 - Add ipyleaflet representation for JupyterLab ([#1065](../../pull/1065))
+- When restyling a source, share band range calculations ([#1215](../../pull/1215))
 
 ### Changes
 - Change how extensions and fallback priorities in Girder interact ([#1208](../../pull/1208))

diff --git a/large_image/tilesource/base.py b/large_image/tilesource/base.py
@@ -193,7 +193,8 @@ def _setStyle(self, style):
                 delattr(self, key)
             except Exception:
                 pass
-        self._bandRanges = {}
+        if not hasattr(self, '_bandRanges'):
+            self._bandRanges = {}
         self._jsonstyle = style
         if style is not None:
             if isinstance(style, dict):