Merge pull request #1382 from dgoeries/code-quality-legend
LegendItem: A bit auto flake8
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commit
4946a57987
@ -8,6 +8,7 @@ from .ScatterPlotItem import ScatterPlotItem, drawSymbol
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from .PlotDataItem import PlotDataItem
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from .GraphicsWidgetAnchor import GraphicsWidgetAnchor
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from .BarGraphItem import BarGraphItem
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__all__ = ['LegendItem']
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@ -25,8 +26,10 @@ class LegendItem(GraphicsWidget, GraphicsWidgetAnchor):
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legend.setParentItem(plotItem)
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"""
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def __init__(self, size=None, offset=None, horSpacing=25, verSpacing=0, pen=None,
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brush=None, labelTextColor=None, frame=True, rowCount=1, colCount=1, **kwargs):
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def __init__(self, size=None, offset=None, horSpacing=25, verSpacing=0,
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pen=None, brush=None, labelTextColor=None, frame=True,
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rowCount=1, colCount=1, **kwargs):
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"""
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============== ===============================================================
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**Arguments:**
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@ -160,7 +163,8 @@ class LegendItem(GraphicsWidget, GraphicsWidgetAnchor):
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title The title to display for this item. Simple HTML allowed.
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============== ========================================================
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"""
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label = LabelItem(name, color=self.opts['labelTextColor'], justify='left')
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label = LabelItem(name, color=self.opts['labelTextColor'],
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justify='left')
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if isinstance(item, ItemSample):
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sample = item
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else:
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@ -174,45 +178,45 @@ class LegendItem(GraphicsWidget, GraphicsWidgetAnchor):
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row = self.layout.rowCount()
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if row:
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row -= 1
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nCol = self.columnCount*2
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#FIRST ROW FULL
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nCol = self.columnCount * 2
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# FIRST ROW FULL
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if col == nCol:
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for col in range(0,nCol,2):
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#FIND RIGHT COLUMN
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for col in range(0, nCol, 2):
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# FIND RIGHT COLUMN
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if not self.layout.itemAt(row, col):
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break
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if col+2 == nCol:
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#MAKE NEW ROW
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if col + 2 == nCol:
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# MAKE NEW ROW
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col = 0
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row += 1
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self.layout.addItem(sample, row, col)
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self.layout.addItem(label, row, col+1)
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self.layout.addItem(label, row, col + 1)
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def setColumnCount(self, columnCount):
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'''
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change the orientation of all items of the legend
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'''
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"""change the orientation of all items of the legend
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"""
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if columnCount != self.columnCount:
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self.columnCount = columnCount
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self.rowCount = int(len(self.items)/columnCount)
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for i in range(self.layout.count()-1,-1,-1):
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self.layout.removeAt(i) #clear layout
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self.rowCount = int(len(self.items) / columnCount)
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for i in range(self.layout.count() - 1, -1, -1):
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self.layout.removeAt(i) # clear layout
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for sample, label in self.items:
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self._addItemToLayout(sample, label)
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self.updateSize()
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def getLabel(self, plotItem):
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"""Return the labelItem inside the legend for a given plotItem
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The label-text can be changed via labenItem.setText
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"""
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return the labelItem inside the legend for a given plotItem
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the label-text can be changed via labenItem.setText
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"""
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out = [(it, lab) for it, lab in self.items if it.item==plotItem]
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try: return out[0][1]
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except IndexError: return None
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out = [(it, lab) for it, lab in self.items if it.item == plotItem]
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try:
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return out[0][1]
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except IndexError:
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return None
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def removeItem(self, item):
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"""
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Removes one item from the legend.
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"""Removes one item from the legend.
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============== ========================================================
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**Arguments:**
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@ -221,13 +225,13 @@ class LegendItem(GraphicsWidget, GraphicsWidgetAnchor):
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"""
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for sample, label in self.items:
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if sample.item is item or label.text == item:
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self.items.remove((sample, label)) # remove from itemlist
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self.layout.removeItem(sample) # remove from layout
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sample.close() # remove from drawing
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self.items.remove((sample, label)) # remove from itemlist
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self.layout.removeItem(sample) # remove from layout
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sample.close() # remove from drawing
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self.layout.removeItem(label)
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label.close()
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self.updateSize() # redraq box
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return # return after first match
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self.updateSize() # redraq box
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return # return after first match
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def clear(self):
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"""Remove all items from the legend."""
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@ -278,11 +282,12 @@ class LegendItem(GraphicsWidget, GraphicsWidgetAnchor):
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class ItemSample(GraphicsWidget):
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""" Class responsible for drawing a single item in a LegendItem (sans label).
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"""Class responsible for drawing a single item in a LegendItem (sans label)
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This may be subclassed to draw custom graphics in a Legend.
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"""
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## Todo: make this more generic; let each item decide how it should be represented.
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# TODO: make this more generic; let items decide how it should be look.
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def __init__(self, item):
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GraphicsWidget.__init__(self)
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self.item = item
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@ -300,18 +305,21 @@ class ItemSample(GraphicsWidget):
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p.setPen(fn.mkPen(opts['pen']))
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p.drawLine(0, 11, 20, 11)
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if opts.get('fillLevel', None) is not None and opts.get('fillBrush', None) is not None:
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if (opts.get('fillLevel', None) is not None and
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opts.get('fillBrush', None) is not None):
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p.setBrush(fn.mkBrush(opts['fillBrush']))
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p.setPen(fn.mkPen(opts['fillBrush']))
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p.drawPolygon(QtGui.QPolygonF([QtCore.QPointF(2, 18), QtCore.QPointF(18, 2), QtCore.QPointF(18, 18)]))
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p.drawPolygon(QtGui.QPolygonF(
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[QtCore.QPointF(2, 18), QtCore.QPointF(18, 2),
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QtCore.QPointF(18, 18)]))
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symbol = opts.get('symbol', None)
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if symbol is not None:
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if isinstance(self.item, PlotDataItem):
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opts = self.item.scatter.opts
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p.translate(10, 10)
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drawSymbol(p, symbol, opts['size'], fn.mkPen(opts['pen']), fn.mkBrush(opts['brush']))
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drawSymbol(p, symbol, opts['size'], fn.mkPen(opts['pen']),
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fn.mkBrush(opts['brush']))
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if isinstance(self.item, BarGraphItem):
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p.setBrush(fn.mkBrush(opts['brush']))
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