def test_mouseClickEvent():
plt = pg.GraphicsView()
plt.show()
resizeWindow(plt, 200, 200)
vb = pg.ViewBox()
plt.scene().addItem(vb)
vb.resize(200, 200)
QtTest.QTest.qWaitForWindowExposed(plt)
QtTest.QTest.qWait(100)
roi = pg.RectROI((0, 0), (10, 20), removable=True)
vb.addItem(roi)
app.processEvents()
mouseClick(plt, roi.mapToScene(pg.Point(2, 2)),
QtCore.Qt.MouseButton.LeftButton)
def test_PolyLineROI():
rois = [(pg.PolyLineROI([[0, 0], [10, 0], [0, 15]], closed=True,
pen=0.3), 'closed'),
(pg.PolyLineROI([[0, 0], [10, 0], [0, 15]], closed=False,
pen=0.3), 'open')]
#plt = pg.plot()
plt = pg.GraphicsView()
plt.show()
resizeWindow(plt, 200, 200)
vb = pg.ViewBox()
plt.scene().addItem(vb)
vb.resize(200, 200)
#plt.plotItem = pg.PlotItem()
#plt.scene().addItem(plt.plotItem)
#plt.plotItem.resize(200, 200)
plt.scene().minDragTime = 0 # let us simulate mouse drags very quickly.
# seemingly arbitrary requirements; might need longer wait time for some platforms..
QtTest.QTest.qWaitForWindowExposed(plt)
QtTest.QTest.qWait(100)
for r, name in rois:
vb.clear()
vb.addItem(r)
vb.autoRange()
app.processEvents()
assertImageApproved(plt, 'roi/polylineroi/' + name + '_init',
'Init %s polyline.' % name)
initState = r.getState()
assert len(r.getState()['points']) == 3
# hover over center
center = r.mapToScene(pg.Point(3, 3))
mouseMove(plt, center)
assertImageApproved(plt, 'roi/polylineroi/' + name + '_hover_roi',
'Hover mouse over center of ROI.')
# drag ROI
mouseDrag(plt, center, center + pg.Point(10, -10),
QtCore.Qt.MouseButton.LeftButton)
assertImageApproved(plt, 'roi/polylineroi/' + name + '_drag_roi',
'Drag mouse over center of ROI.')
# hover over handle
pt = r.mapToScene(pg.Point(r.getState()['points'][2]))
mouseMove(plt, pt)
assertImageApproved(plt, 'roi/polylineroi/' + name + '_hover_handle',
'Hover mouse over handle.')
# drag handle
mouseDrag(plt, pt, pt + pg.Point(5, 20),
QtCore.Qt.MouseButton.LeftButton)
assertImageApproved(plt, 'roi/polylineroi/' + name + '_drag_handle',
'Drag mouse over handle.')
# hover over segment
pt = r.mapToScene((pg.Point(r.getState()['points'][2]) +
pg.Point(r.getState()['points'][1])) * 0.5)
mouseMove(plt, pt + pg.Point(0, 2))
assertImageApproved(plt, 'roi/polylineroi/' + name + '_hover_segment',
'Hover mouse over diagonal segment.')
# click segment
mouseClick(plt, pt, QtCore.Qt.MouseButton.LeftButton)
assertImageApproved(plt, 'roi/polylineroi/' + name + '_click_segment',
'Click mouse over segment.')
# drag new handle
mouseMove(
plt, pt + pg.Point(10, -10)
) # pg bug: have to move the mouse off/on again to register hover
mouseDrag(plt, pt, pt + pg.Point(10, -10),
QtCore.Qt.MouseButton.LeftButton)
assertImageApproved(plt,
'roi/polylineroi/' + name + '_drag_new_handle',
'Drag mouse over created handle.')
# clear all points
r.clearPoints()
assertImageApproved(plt, 'roi/polylineroi/' + name + '_clear',
'All points cleared.')
assert len(r.getState()['points']) == 0
# call setPoints
r.setPoints(initState['points'])
assertImageApproved(plt, 'roi/polylineroi/' + name + '_setpoints',
'Reset points to initial state.')
assert len(r.getState()['points']) == 3
# call setState
r.setState(initState)
assertImageApproved(plt, 'roi/polylineroi/' + name + '_setstate',
'Reset ROI to initial state.')
assert len(r.getState()['points']) == 3
plt.hide()