def _file_changed(self):
ms = Material()
rpart = self.file.rpartition('.')
# HDF5 does not work!
# Should launch a view to select group and row here
row = None
groupname = ''
if (rpart[2] in ['h5', 'hdf5', 'H5', 'HDF5']) and (groupname != ''):
if isinstance(row, int):
ms.load_from_hdf5(str(self.file), groupname, row)
else:
ms_out.load_from_hdf5(str(self.file), groupname)
elif (rpart[2] in ['txt', 'TXT']):
ms.load_from_text(str(self.file))
self.update_from_material(ms)
self.material = ms
