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Avoid constructing shadow pens when no shadow pen is set

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Basically, profiling has pointed me to the fact that a fair bit of code time is spent in `setShadowPen()` (actually, it's in `mkPen()`, which `setShadowPen()` calls), even when no shadow pen is specified.

In my application, I'm calling `pyqtgraph.PlotDataItem.setdata()`, which calls through PlotDataItem->setData, PlotDataItem->updateItems. At some point in the call stack, the default value for `shadowPen` is being inserted into the kwargs, which then causes the specious calling of setShadowPen.

Anyways, if we check if shadowPen is a value other then none, this doesn't happen.
This commit is contained in:
Connor Wolf 2019-01-17 20:02:34 -08:00 committed by fake-name
parent a4fe86a52d
commit 17e90af36c
1 changed files with 100 additions and 101 deletions
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9
pyqtgraph/graphicsItems/PlotCurveItem.py
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@ -69,8 +69,7 @@ class PlotCurveItem(GraphicsObject):
'mouseWidth': 8, # width of shape responding to mouse click
'compositionMode': None,
}
if 'pen' not in kargs:
self.opts['pen'] = fn.mkPen('w')
self.setClickable(kargs.get('clickable', False))
self.setData(*args, **kargs)
@ -390,11 +389,11 @@ class PlotCurveItem(GraphicsObject):
self.opts['connect'] = kargs['connect']
if 'pen' in kargs:
self.setPen(kargs['pen'])
if 'shadowPen' in kargs:
if 'shadowPen' in kargs and kargs['shadowPen'] is not None:
self.setShadowPen(kargs['shadowPen'])
if 'fillLevel' in kargs:
if 'fillLevel' in kargs and kargs['fillLevel'] is not None:
self.setFillLevel(kargs['fillLevel'])
if 'brush' in kargs:
if 'brush' in kargs and kargs['brush'] is not None:
self.setBrush(kargs['brush'])
if 'antialias' in kargs:
self.opts['antialias'] = kargs['antialias']