def on_ions_updated(self, new_ions):
qmodel = QStandardItemModel()
qmodel.setColumnCount(2)
qmodel.setHorizontalHeaderItem(0, QStandardItem('Ion'))
qmodel.setHorizontalHeaderItem(1, QStandardItem('Abundance (%)'))
root = qmodel.invisibleRootItem()
element_keyfunc = lambda x: x.isotope.element
sorted_ions = sorted(new_ions, key=element_keyfunc)
for element, ions in itertools.groupby(sorted_ions, key=element_keyfunc):
element_item = QStandardItem(element)
element_item.setCheckable(True)
element_item.setCheckState(2)
root.appendRow(element_item)
for ion in ions:
ion_name = QStandardItem(ion.name)
ion_name.setData(ion,32)
ion_name.emitDataChanged()
ion_abundance = QStandardItem(str(ion.isotope.abundance))
element_item.appendRow([ion_name, ion_abundance])
self.ionlistTree.setModel(qmodel)
self.ionlistTree.expandAll()
self.addionsButton.setEnabled(True)
self._qmodel=qmodel
