#!/usr/bin/env python
##############################################################################
##
# This file is part of Sardana
##
# http://www.sardana-controls.org/
##
# Copyright 2011 CELLS / ALBA Synchrotron, Bellaterra, Spain
##
# Sardana is free software: you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
##
# Sardana is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Lesser General Public License for more details.
##
# You should have received a copy of the GNU Lesser General Public License
# along with Sardana. If not, see <http://www.gnu.org/licenses/>.
##
##############################################################################
"""This module is part of the Python Pool library. It defines the base classes
for TwoDExpChannel"""
__all__ = ["Pool2DExpChannel"]
__docformat__ = 'restructuredtext'
from sardana import ElementType
from sardana.sardanaevent import EventType
from sardana.pool.poolbasechannel import PoolTimerableChannel
[docs]class Pool2DExpChannel(PoolTimerableChannel):
def __init__(self, **kwargs):
self._data_source = None
self._timer = None
kwargs['elem_type'] = ElementType.TwoDExpChannel
PoolTimerableChannel.__init__(self, **kwargs)
# --------------------------------------------------------------------------
# data source
# --------------------------------------------------------------------------
[docs] def get_data_source(self, cache=True, propagate=1):
msg = ("data_source is deprecated since "
"version 2.8.0. Use value_ref instead.")
self.warning(msg)
if not cache or self._data_source is None:
data_source = self.read_data_source()
self._set_data_source(data_source, propagate=propagate)
return self._data_source
def _set_data_source(self, data_source, propagate=1):
self._data_source = data_source
if not propagate:
return
self.fire_event(
EventType("data_source", priority=propagate), data_source)
[docs] def read_data_source(self):
data_source = self.controller.get_axis_par(self.axis, "data_source")
return data_source
data_source = property(
get_data_source, doc="source identifier for the 2D data")