def __get_local_childs(self, parent=None):
"""
Returns all childs of the topic item at the given position in the gui.
:param parent: the model parent at the given index (not global / logical parent)
:type parent: NodeItem
:param sub_activated: Defines if subscriber shall be shown too.
:returns: the child at the position row
:rtype: AbstractItem
"""
childs = []
if parent is not None:
# a specific parent has been chosen - we have to use it to display the correct connection items
# use the seuid to determine the node and compare this to the parts in the connections item (child of this
# item.
seuid = parent.get_seuid()
seuid_helper = SEUID()
seuid_helper.identifier = seuid
seuid_helper.set_fields()
node = seuid_helper.node
for child in self.get_childs():
child_seuid = child.get_seuid()
seuid_helper.identifier = child_seuid
seuid_helper.set_fields()
node_comp = seuid_helper.publisher
# do the check on the publisher
if node == node_comp:
# match.
childs.append(child)
continue
return childs
else:
return self._child_items
def __init__(self, parent=None):
"""
Defines the class attributes especially the root_item which later contains the list of headers e.g. for a TreeView representation.
:param parent: the parent of the model
:type parent: QObject
"""
super(ROSModel, self).__init__(parent)
self.__logger = ModelLogger()
self._translator = QTranslator()
# internationalize everything including the 2 plugins
self.rp = rospkg.RosPack()
directory = os.path.join(self.rp.get_path('arni_gui'), 'translations')
files = find_qm_files(directory)
translator = self.get_translator()
# todo: make this more intelligent (should be done as soon as new languages are needed / implemented)
print("chose translation " + files[0])
translator.load(files[0])
qApp.installTranslator(translator)
self.__root_item = RootItem(self.__logger, "abstract", self)
self.__parent = parent
self.__model_lock = Lock()
self.update_signal.connect(self.update_model)
"""
IMPORTANT: Does not contain the models nodes but the logical nodes. E.g. a ConnectionItem splits up to two
TreeConnectionItems where the identifier_dict only contains the connectionitem. This allows to push
data into one item but to show it at two places in the Qt GUI.
"""
self.__identifier_dict = {"root": self.__root_item}
self.__item_delegate = SizeDelegate()
# CAUTION: Do not change this mapping if not absolutely necessary. If you change it remember to change
# item_filter_proxy (and maybe other classes) as well - sadly not all functions use the access function.
self.__mapping = {
0: 'type',
1: 'name',
2: 'state',
3: 'data'
}
self.__last_time_error_occured = 0
self.__logger.log("info", Time.now(), "ROSModel", "ROSModel initialization finished")
self.__seuid_helper = SEUID()
self.__find_host = HostLookup()
self.__buffer_thread = BufferThread(self)
self.__buffer_thread.start()
