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Merge pull request #1382 from dgoeries/code-quality-legend

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LegendItem: A bit auto flake8
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Ogi Moore 2020-10-12 22:28:00 -07:00 committed by GitHub
commit 4946a57987
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 47 additions and 39 deletions
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46
pyqtgraph/graphicsItems/LegendItem.py
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@ -8,6 +8,7 @@ from .ScatterPlotItem import ScatterPlotItem, drawSymbol
from .PlotDataItem import PlotDataItem from .PlotDataItem import PlotDataItem
from .GraphicsWidgetAnchor import GraphicsWidgetAnchor from .GraphicsWidgetAnchor import GraphicsWidgetAnchor
from .BarGraphItem import BarGraphItem from .BarGraphItem import BarGraphItem
__all__ = ['LegendItem'] __all__ = ['LegendItem']
@ -25,8 +26,10 @@ class LegendItem(GraphicsWidget, GraphicsWidgetAnchor):
legend.setParentItem(plotItem) legend.setParentItem(plotItem)
""" """
def __init__(self, size=None, offset=None, horSpacing=25, verSpacing=0, pen=None,
brush=None, labelTextColor=None, frame=True, rowCount=1, colCount=1, **kwargs): def __init__(self, size=None, offset=None, horSpacing=25, verSpacing=0,
pen=None, brush=None, labelTextColor=None, frame=True,
rowCount=1, colCount=1, **kwargs):
""" """
============== =============================================================== ============== ===============================================================
**Arguments:** **Arguments:**
@ -160,7 +163,8 @@ class LegendItem(GraphicsWidget, GraphicsWidgetAnchor):
title The title to display for this item. Simple HTML allowed. title The title to display for this item. Simple HTML allowed.
============== ======================================================== ============== ========================================================
""" """
label = LabelItem(name, color=self.opts['labelTextColor'], justify='left') label = LabelItem(name, color=self.opts['labelTextColor'],
justify='left')
if isinstance(item, ItemSample): if isinstance(item, ItemSample):
sample = item sample = item
else: else:
@ -189,9 +193,8 @@ class LegendItem(GraphicsWidget, GraphicsWidgetAnchor):
self.layout.addItem(label, row, col + 1) self.layout.addItem(label, row, col + 1)
def setColumnCount(self, columnCount): def setColumnCount(self, columnCount):
''' """change the orientation of all items of the legend
change the orientation of all items of the legend """
'''
if columnCount != self.columnCount: if columnCount != self.columnCount:
self.columnCount = columnCount self.columnCount = columnCount
self.rowCount = int(len(self.items) / columnCount) self.rowCount = int(len(self.items) / columnCount)
@ -202,17 +205,18 @@ class LegendItem(GraphicsWidget, GraphicsWidgetAnchor):
self.updateSize() self.updateSize()
def getLabel(self, plotItem): def getLabel(self, plotItem):
""" """Return the labelItem inside the legend for a given plotItem
return the labelItem inside the legend for a given plotItem
the label-text can be changed via labenItem.setText The label-text can be changed via labenItem.setText
""" """
out = [(it, lab) for it, lab in self.items if it.item == plotItem] out = [(it, lab) for it, lab in self.items if it.item == plotItem]
try: return out[0][1] try:
except IndexError: return None return out[0][1]
except IndexError:
return None
def removeItem(self, item): def removeItem(self, item):
""" """Removes one item from the legend.
Removes one item from the legend.
============== ======================================================== ============== ========================================================
**Arguments:** **Arguments:**
@ -278,11 +282,12 @@ class LegendItem(GraphicsWidget, GraphicsWidgetAnchor):
class ItemSample(GraphicsWidget): class ItemSample(GraphicsWidget):
""" Class responsible for drawing a single item in a LegendItem (sans label). """Class responsible for drawing a single item in a LegendItem (sans label)
This may be subclassed to draw custom graphics in a Legend. This may be subclassed to draw custom graphics in a Legend.
""" """
## Todo: make this more generic; let each item decide how it should be represented.
# TODO: make this more generic; let items decide how it should be look.
def __init__(self, item): def __init__(self, item):
GraphicsWidget.__init__(self) GraphicsWidget.__init__(self)
self.item = item self.item = item
@ -300,18 +305,21 @@ class ItemSample(GraphicsWidget):
p.setPen(fn.mkPen(opts['pen'])) p.setPen(fn.mkPen(opts['pen']))
p.drawLine(0, 11, 20, 11) p.drawLine(0, 11, 20, 11)
if opts.get('fillLevel', None) is not None and opts.get('fillBrush', None) is not None: if (opts.get('fillLevel', None) is not None and
opts.get('fillBrush', None) is not None):
p.setBrush(fn.mkBrush(opts['fillBrush'])) p.setBrush(fn.mkBrush(opts['fillBrush']))
p.setPen(fn.mkPen(opts['fillBrush'])) p.setPen(fn.mkPen(opts['fillBrush']))
p.drawPolygon(QtGui.QPolygonF([QtCore.QPointF(2, 18), QtCore.QPointF(18, 2), QtCore.QPointF(18, 18)])) p.drawPolygon(QtGui.QPolygonF(
[QtCore.QPointF(2, 18), QtCore.QPointF(18, 2),
QtCore.QPointF(18, 18)]))
symbol = opts.get('symbol', None) symbol = opts.get('symbol', None)
if symbol is not None: if symbol is not None:
if isinstance(self.item, PlotDataItem): if isinstance(self.item, PlotDataItem):
opts = self.item.scatter.opts opts = self.item.scatter.opts
p.translate(10, 10) p.translate(10, 10)
drawSymbol(p, symbol, opts['size'], fn.mkPen(opts['pen']), fn.mkBrush(opts['brush'])) drawSymbol(p, symbol, opts['size'], fn.mkPen(opts['pen']),
fn.mkBrush(opts['brush']))
if isinstance(self.item, BarGraphItem): if isinstance(self.item, BarGraphItem):
p.setBrush(fn.mkBrush(opts['brush'])) p.setBrush(fn.mkBrush(opts['brush']))