diff options
Diffstat (limited to 'silx/gui/plot/backends/glutils/GLPlotImage.py')
| -rw-r--r-- | silx/gui/plot/backends/glutils/GLPlotImage.py | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/silx/gui/plot/backends/glutils/GLPlotImage.py b/silx/gui/plot/backends/glutils/GLPlotImage.py index f60a159..3ad94b9 100644 --- a/silx/gui/plot/backends/glutils/GLPlotImage.py +++ b/silx/gui/plot/backends/glutils/GLPlotImage.py @@ -1,7 +1,7 @@ # coding: utf-8 # /*########################################################################## # -# Copyright (c) 2014-2020 European Synchrotron Radiation Facility +# Copyright (c) 2014-2021 European Synchrotron Radiation Facility # # Permission is hereby granted, free of charge, to any person obtaining a copy # of this software and associated documentation files (the "Software"), to deal @@ -286,6 +286,10 @@ class GLPlotColormap(_GLPlotData2D): self._texture = None self._textureIsDirty = False + def isInitialized(self): + return (self._cmap_texture is not None or + self._texture is not None) + @property def cmapRange(self): if self.normalization == 'log': @@ -622,11 +626,14 @@ class GLPlotRGBAImage(_GLPlotData2D): return self._alpha def discard(self): - if self._texture is not None: + if self.isInitialized(): self._texture.discard() self._texture = None self._textureIsDirty = False + def isInitialized(self): + return self._texture is not None + def updateData(self, data): assert data.dtype in self._SUPPORTED_DTYPES oldData = self.data |