def __init__(self, name, value=Q(0), categories=None):
super(GlobalVariable, self).__init__()
self.decimation = StaticDecimation(Q(10, 's'))
self.history = deque(maxlen=10)
self._value = value
self._name = name
self.categories = categories
def __init__(self, pulser, config, configName, globalDict, parent=None):
self.isSetup = False
dacBase.__init__(self, parent)
dacForm.__init__(self)
self.config = config
self.dac = DAC(pulser)
self.channelsConfigName = '{0}.dacExpressionChannels'.format(
configName)
self.autoApplyConfigName = '{0}.autoApply'.format(configName)
self.guiStateConfigName = '{0}.guiState'.format(configName)
self.dacChannels = self.config.get(self.channelsConfigName)
if not self.dacChannels or len(
self.dacChannels) != self.dac.numChannels:
self.dacChannels = [
DACChannelSetting(globalDict=globalDict)
for _ in range(self.dac.numChannels)
]
for index, channel in enumerate(self.dacChannels):
channel.globalDict = globalDict
channel.onChange = partial(self.onChange, index)
self.autoApply = self.config.get(self.autoApplyConfigName, True)
self.decimation = defaultdict(lambda: StaticDecimation(Q(30, 's')))
self.persistence = DBPersist()
self.globalDict = globalDict
self.pulser = pulser
def __init__(self,
pulser,
config,
configName='DDSUi',
globalDict=dict(),
parent=None):
DDSBase.__init__(self, parent)
DDSForm.__init__(self)
if pulser.pulserConfiguration():
self.channelInfo = sorted(list(
pulser.pulserConfiguration().ddsChannels.values()),
key=lambda x: x.channel)
else:
self.channelInfo = []
self.numChannels = len(self.channelInfo)
self.config = config
self.channelConfigName = '{0}.ddsChannels'.format(configName)
self.autoApplyConfigName = '{0}.autoApply'.format(configName)
self.guiStateConfigName = '{0}.guiState'.format(configName)
self.ad9912 = Ad9912.Ad9912(pulser)
oldDDSChannels = self.config.get(self.channelConfigName, [])
self.ddsChannels = [
oldDDSChannels[i]
if i < len(oldDDSChannels) else DDSChannelSettings()
for i in range(self.numChannels)
]
self.autoApply = self.config.get(self.autoApplyConfigName, True)
self.decimation = defaultdict(lambda: StaticDecimation(Q(30, 's')))
self.persistence = DBPersist()
self.globalDict = globalDict
self.pulser = pulser
self.persistSpace = 'DDS'
for index, channelinfo in enumerate(self.channelInfo):
self.ddsChannels[index].channel = channelinfo.channel
self.ddsChannels[index].shutter = channelinfo.shutter
def __setstate__(self, state):
super(GlobalVariable, self).__init__()
self.decimation = StaticDecimation(Q(10, 's'))
self._name, self._value, self.categories, self.history = state
class GlobalVariable(QtCore.QObject):
"""Class for encapsulating a global variable.
Attributes:
valueChanged (PyQt signal): emitted when value is changed, with signature (name, new-value, origin-of-change)
decimation (StaticDecimation): takes care of saving globals to database every 10 seconds
history (deque): history of the last 10 values the global has been set to
_value (magnitude): the global's value, accessed via 'value' property
_name (str): the global's name, accessed via 'name' property
categories (list[str]): the global's cateogires
"""
valueChanged = QtCore.pyqtSignal(object, object, object)
persistSpace = 'globalVar'
persistence = DBPersist()
def __init__(self, name, value=Q(0), categories=None):
super(GlobalVariable, self).__init__()
self.decimation = StaticDecimation(Q(10, 's'))
self.history = deque(maxlen=10)
self._value = value
self._name = name
self.categories = categories
@property
def value(self):
return self._value
@value.setter
def value(self, newvalue):
"""set the value and record the change"""
if isinstance(newvalue, tuple):
v, o = newvalue
else:
v, o = newvalue, None
if self._value != v or not (type(self._value) is type(v)) or (
is_Q(v) and (type(self._value.m) is type(v.m))):
self._value = v
self.valueChanged.emit(self.name, v, o)
self.history.appendleft((v, time.time(), o))
if o is not None:
self.persistCallback((time.time(), v, None, None))
else:
self.decimation.decimate(time.time(), v, self.persistCallback)
@property
def name(self):
return self._name
@name.setter
def name(self, newname):
"""set the name and record the change in the database"""
self._name, oldname = newname, self._name
self.persistence.rename(self.persistSpace, oldname, newname)
def __getstate__(self):
return self._name, self._value, self.categories, self.history
def __setstate__(self, state):
super(GlobalVariable, self).__init__()
self.decimation = StaticDecimation(Q(10, 's'))
self._name, self._value, self.categories, self.history = state
def persistCallback(self, data):
time, value, minval, maxval = data
unit = None
if is_Q(value):
value, unit = value.m, "{:~}".format(value.units)
self.persistence.persist(self.persistSpace, self.name, time, value,
minval, maxval, unit)
def toXmlElement(self, element):
e = ElementTree.SubElement(
element,
"GlobalVariable",
attrib={
'type': 'Magnitude',
'name': self._name,
'categories':
", ".join(self.categories) if self.categories else ''
})
e.text = repr(self._value)
@classmethod
def fromXmlElement(cls, element):
categories = [
s.strip(" ") for s in element.attrib['categories'].split(",")
]
return GlobalVariable(element.attrib['name'], parse(element.text),
categories)