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⚡️ Speed up method TextArea.get_multilinebaseline by 12% #29

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⚡️ Speed up method TextArea.get_multilinebaseline by 12% #29

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14 changes: 9 additions & 5 deletions lib/matplotlib/offsetbox.py
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Original file line number Diff line number Diff line change
Expand Up @@ -700,13 +700,17 @@ def __init__(self, s,
"""
if textprops is None:
textprops = {}
self._text = mtext.Text(0, 0, s, **textprops)
# Instantiate Text and transforms only once per constructor call
text = mtext.Text(0, 0, s, **textprops)
offset_transform = mtransforms.Affine2D()
baseline_transform = mtransforms.Affine2D()
# Call OffsetBox constructor before assigning new attributes for safety and efficiency
super().__init__()
self._text = text
self._children = [self._text]
self.offset_transform = mtransforms.Affine2D()
self._baseline_transform = mtransforms.Affine2D()
self._text.set_transform(self.offset_transform +
self._baseline_transform)
self.offset_transform = offset_transform
self._baseline_transform = baseline_transform
self._text.set_transform(self.offset_transform + self._baseline_transform)
self._multilinebaseline = multilinebaseline

def set_text(self, s):
Expand Down