settings_proxy_dbus_service.py
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1 # Copyright (c) 2011, Dirk Thomas, Dorian Scholz, TU Darmstadt
2 # All rights reserved.
3 #
4 # Redistribution and use in source and binary forms, with or without
5 # modification, are permitted provided that the following conditions
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10 # * Redistributions in binary form must reproduce the above
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30 
31 import dbus
32 
33 
34 class SettingsProxyDBusService(dbus.service.Object):
35  """DBus service of a 'Settings' instance."""
36 
37  def __init__(self, object_path):
38  super(SettingsProxyDBusService, self).__init__(object_path)
39  self._settings_proxy = None
40  self._group = None
41 
42  def set_settings(self, settings):
43  if settings is not None:
44  self._settings_proxy = settings._settings_proxy
45  self._group = settings._group
46  else:
47  self._settings_proxy = None
48  self._group = None
49 
50  @dbus.service.method('org.ros.qt_gui.Settings', in_signature='s', out_signature='av')
51  def all_keys(self, group):
52  return self._settings_proxy.all_keys(self._group + '/' + group)
53 
54  @dbus.service.method('org.ros.qt_gui.Settings', in_signature='s', out_signature='as')
55  def child_groups(self, group):
56  return self._settings_proxy.child_groups(self._group + '/' + group)
57 
58  @dbus.service.method('org.ros.qt_gui.Settings', in_signature='s', out_signature='as')
59  def child_keys(self, group):
60  return self._settings_proxy.child_keys(self._group + '/' + group)
61 
62  @dbus.service.method('org.ros.qt_gui.Settings', in_signature='ss', out_signature='b')
63  def contains(self, group, key):
64  return self._settings_proxy.contains(self._group + '/' + group, key)
65 
66  @dbus.service.method('org.ros.qt_gui.Settings', in_signature='ss', out_signature='')
67  def remove(self, group, key):
68  self._settings_proxy.remove(self._group + '/' + group, key)
69 
70  @dbus.service.method('org.ros.qt_gui.Settings', in_signature='ssv', out_signature='')
71  def set_value(self, group, key, value):
72  value = self._sanitize_value(value)
73  self._settings_proxy.set_value(self._group + '/' + group, key, value)
74 
75  @dbus.service.method('org.ros.qt_gui.Settings', in_signature='ssv', out_signature='v')
76  def value(self, group, key, default_value=None):
77  return self._settings_proxy.value(self._group + '/' + group, key, default_value)
78 
79  def _sanitize_value(self, value):
80  # transform DBus types to Python types to work with Pickle
81  if isinstance(value, dbus.Boolean):
82  value = bool(value)
83  elif isinstance(value,
84  (dbus.Byte, dbus.Int16, dbus.Int32, dbus.Int64,
85  dbus.UInt16, dbus.UInt32, dbus.UInt64)):
86  value = int(value)
87  elif isinstance(value, dbus.Double):
88  value = float(value)
89  elif isinstance(value, dbus.String):
90  value = str(value)
91  elif isinstance(value, dbus.UTF8String):
92  try:
93  value = unicode(value)
94  except NameError:
95  value = str(value)
96  return value


qt_gui
Author(s): Dirk Thomas
autogenerated on Sun Mar 1 2020 04:07:38