103 lines
2.9 KiB
Python
103 lines
2.9 KiB
Python
import pyqtgraph as pg
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def test_legend_item_basics():
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pg.mkQApp()
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legend = pg.LegendItem()
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assert legend.opts['pen'] == pg.mkPen(None)
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assert legend.opts['brush'] == pg.mkBrush(None)
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assert legend.opts['labelTextColor'] is None
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assert legend.opts['labelTextSize'] == '9pt'
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assert legend.opts['offset'] is None
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assert legend.columnCount == 1
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assert legend.rowCount == 1
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assert legend.labelTextColor() is None
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assert legend.labelTextSize() == '9pt'
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assert legend.brush() == pg.mkBrush(None)
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assert legend.pen() == pg.mkPen(None)
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assert legend.sampleType is pg.ItemSample
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# Set brush
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# ----------------------------------------------------
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brush = pg.mkBrush('b')
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legend.setBrush(brush)
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assert legend.brush() == brush
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assert legend.opts['brush'] == brush
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# Set pen
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# ----------------------------------------------------
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pen = pg.mkPen('b')
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legend.setPen(pen)
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assert legend.pen() == pen
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assert legend.opts['pen'] == pen
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# Set labelTextColor
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# ----------------------------------------------------
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text_color = pg.mkColor('b')
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legend.setLabelTextColor(text_color)
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assert legend.labelTextColor() == text_color
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assert legend.opts['labelTextColor'] == text_color
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# Set labelTextSize
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# ----------------------------------------------------
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text_size = '12pt'
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legend.setLabelTextSize(text_size)
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assert legend.labelTextSize() == text_size
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assert legend.opts['labelTextSize'] == text_size
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# Add items
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# ----------------------------------------------------
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assert len(legend.items) == 0
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plot = pg.PlotDataItem(name="Plot")
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legend.addItem(plot, name="Plot")
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assert len(legend.items) == 1
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scatter = pg.PlotDataItem(name="Scatter")
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legend.addItem(scatter, name="Scatter")
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assert len(legend.items) == 2
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assert legend.columnCount == 1
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assert legend.rowCount == 2
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curve = pg.PlotDataItem(name="Curve")
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legend.addItem(curve, name="Curve")
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assert len(legend.items) == 3
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assert legend.rowCount == 3
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scrabble = pg.PlotDataItem(name="Scrabble")
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legend.addItem(scrabble, name="Scrabble")
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assert len(legend.items) == 4
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assert legend.layout.rowCount() == 4
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assert legend.rowCount == 4
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legend.setColumnCount(2)
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assert legend.columnCount == 2
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assert legend.rowCount == 2
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assert legend.layout.rowCount() == 2
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# Remove items
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# ----------------------------------------------------
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legend.removeItem(scrabble)
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assert legend.rowCount == 2
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assert legend.layout.rowCount() == 2
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assert scrabble not in legend.items
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assert len(legend.items) == 3
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legend.removeItem(curve)
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assert legend.rowCount == 2 # rowCount will never decrease when removing
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assert legend.layout.rowCount() == 1
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assert curve not in legend.items
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assert len(legend.items) == 2
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legend.clear()
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assert legend.items == []
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