def onSaveBtn(self):
dir_ = os.path.expanduser("~")
fname = QtWidgets.QFileDialog.getSaveFileName(
self, "save File", dir_, "xml files (*.xml)")
active_channels = self.parent().cbar.checkedChannels()
colors = self.parent().cbar.colors()
if fname:
writer = XmlConfWriter(self.segmentationParams(),
self.featureGroups(),
active_channels.values(),
colors)
writer.save(fname)
