Petras Jokubauskas 745b04baa5
Fix: updateDecimate should not unhide intentionaly hidden curves (#1973)
* Update PlotItem.py

make update decimate to not unhide curves when items added/removed,
while preserving the Max Traces well behaviour

* Update PlotItem.py

fix typo

* Update PlotItem.py

fix: typo with self as argument

* give better name for the function which handles MaxTraces checkstate change

rename it to _handle_max_traces_toggle

* add doc string to updateDecimation

* add test for PlotItem for external curve visibility control

check if hidden curve would stay hidden when adding or removing other items.

* remove additional empty line between methods
2021-09-07 21:19:22 -07:00

100 lines
3.0 KiB
Python

# -*- coding: utf-8 -*-
import numpy as np
import pytest
import pyqtgraph as pg
app = pg.mkQApp()
@pytest.mark.parametrize('orientation', ['left', 'right', 'top', 'bottom'])
def test_PlotItem_shared_axis_items(orientation):
"""Adding an AxisItem to multiple plots raises RuntimeError"""
ax1 = pg.AxisItem(orientation)
ax2 = pg.AxisItem(orientation)
layout = pg.GraphicsLayoutWidget()
_ = layout.addPlot(axisItems={orientation: ax1})
pi2 = layout.addPlot()
# left or bottom replaces, right or top adds new
pi2.setAxisItems({orientation: ax2})
with pytest.raises(RuntimeError):
pi2.setAxisItems({orientation: ax1})
def test_PlotItem_maxTraces():
item = pg.PlotItem()
curve1 = pg.PlotDataItem(np.random.normal(size=10))
item.addItem(curve1)
assert curve1.isVisible(), "curve1 should be visible"
item.ctrl.maxTracesCheck.setChecked(True)
item.ctrl.maxTracesSpin.setValue(0)
assert not curve1.isVisible(), "curve1 should not be visible"
item.ctrl.maxTracesCheck.setChecked(False)
assert curve1.isVisible(), "curve1 should be visible"
curve2 = pg.PlotDataItem(np.random.normal(size=10))
item.addItem(curve2)
assert curve2.isVisible(), "curve2 should be visible"
item.ctrl.maxTracesCheck.setChecked(True)
item.ctrl.maxTracesSpin.setValue(1)
assert curve2.isVisible(), "curve2 should be visible"
assert not curve1.isVisible(), "curve1 should not be visible"
assert curve1 in item.curves, "curve1 should be in the item's curves"
item.ctrl.forgetTracesCheck.setChecked(True)
assert curve2 in item.curves, "curve2 should be in the item's curves"
assert curve1 not in item.curves, "curve1 should not be in the item's curves"
def test_PlotItem_preserve_external_visibility_control():
item = pg.PlotItem()
curve1 = pg.PlotDataItem(np.random.normal(size=10))
curve2 = pg.PlotDataItem(np.random.normal(size=10))
item.addItem(curve1)
curve1.hide()
item.addItem(curve2)
assert not curve1.isVisible()
item.removeItem(curve2)
assert not curve1.isVisible()
def test_plotitem_menu_initialize():
"""Test the menu initialization of the plotitem"""
item = pg.PlotItem()
assert item.menuEnabled() is True
viewbox = item.vb
assert viewbox is not None
assert viewbox.menu is not None
assert viewbox.menuEnabled() is True
item = pg.PlotItem(enableMenu=False)
assert item.menuEnabled() is False
viewbox = item.vb
assert viewbox is not None
assert viewbox.menu is None
assert viewbox.menuEnabled() is False
viewbox = pg.ViewBox()
item = pg.PlotItem(viewBox=viewbox, enableMenu=False)
assert item.menuEnabled() is False
viewbox = item.vb
assert viewbox is not None
assert viewbox.menu is not None
assert viewbox.menuEnabled() is True
viewbox = pg.ViewBox(enableMenu=False)
item = pg.PlotItem(viewBox=viewbox)
assert item.menuEnabled() is True
viewbox = item.vb
assert viewbox is not None
assert viewbox.menu is None
assert viewbox.menuEnabled() is False