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from .. import Device
class AD_ImagePlugin(Device):
"""
AreaDetector Image Plugin
"""
attrs = ('ArrayData',
'UniqueId', 'UniqueId_RBV',
'NDimensions', 'NDimensions_RBV',
'ArraySize0', 'ArraySize0_RBV',
'ArraySize1', 'ArraySize1_RBV',
'ArraySize2', 'ArraySize2_RBV',
'ColorMode', 'ColorMode_RBV')
_nonpvs = ('_prefix', '_pvs', '_delim')
def __init__(self, prefix):
Device.__init__(self, prefix, delim='', mutable=False,
attrs=self.attrs)
def ensure_value(self, attr, value, wait=False):
"""ensures that an attribute with an associated _RBV value is
set to the specifed value
"""
rbv_attr = "%s_RBV" % attr
if rbv_attr not in self._pvs:
return self._pvs[attr].put(value, wait=wait)
if self._pvs[rbv_attr].get(as_string=True) != value:
self._pvs[attr].put(value, wait=wait)
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