/usr/lib/python2.7/dist-packages/sardana/pool/pooltwodexpchannel.py is in python-sardana 1.6.1-1.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 | #!/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 PoolBaseChannel
class Pool2DExpChannel(PoolBaseChannel):
def __init__(self, **kwargs):
self._data_source = None
kwargs['elem_type'] = ElementType.TwoDExpChannel
PoolBaseChannel.__init__(self, **kwargs)
# --------------------------------------------------------------------------
# data source
# --------------------------------------------------------------------------
def get_data_source(self, cache=True, propagate=1):
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)
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")
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