def create_listeners(self, attr_name, attr_info_list):
self.info_stream("Creating Listeners ...")
attr_to_proxy = attr_info_list[0]
full_attr_to_proxy = self.LlrfDevice + '/' + attr_to_proxy
taurus_attr = Attribute(full_attr_to_proxy)
if len(attr_info_list) == 2:
r_method = attr_info_list[1]
self.dyn_attrs_dict[attr_name] = (taurus_attr, r_method)
elif len(attr_info_list) == 3:
r_method, w_method = attr_info_list[1::]
self.dyn_attrs_dict[attr_name] = (taurus_attr, r_method, w_method)
self.info_stream('w_method = %s' % w_method)
self.info_stream('r_method = %s' % r_method)
listener_name = attr_name + 'Listener'
self.__dict__[listener_name] = taurus.core.TaurusListener(None)
self.__dict__[listener_name].eventReceived = lambda a, b, c: self._dyn_attr_event_received(a,
self.__dict__[listener_name],
c,
attr_name,
r_method )
taurus_attr.addListener(self.__dict__[listener_name])
self.info_stream('attr_to_proxy = %s' % attr_to_proxy)
def test1():
import numpy
from taurus import Attribute
a = Attribute("sys/tg_test/1/ulong64_scalar")
a.write(numpy.uint64(88))
def run(self):
# TODO: This needs to be redone; maybe use string.template?
try:
attribute = Attribute(str(self.model) + "/State")
if attribute:
value = attribute.read()
html = json.dumps('Value: ' +
'<span class="value">%s</span>'
% value.value)
self.finished.emit(self.model, html)
except PyTango.DevFailed as e:
print e
def init_device(self):
try:
self.attribute = Attribute(self.model)
#
# DIRTY FIX to make compatible taurus listeners and existence of Tango channels/commands
# as defined in Command/Tango.py
#
#if self.attribute.__class__ == taurus.core.tango.tangoattribute.TangoAttribute:
# dev = self.attribute.getParentObj()
# dp = dev.getHWObj()
# try:
# dp.subscribe_event = dp._subscribe_event
# except AttributeError:
# pass
logging.getLogger("HWR").info("initialized")
except DevFailed as traceback:
self.imported = False
return
# read information
try:
self.info.minval, self.info.maxval = self.attribute._TangoAttribute__attr_config.getLimits()
logging.getLogger("HWR").info("info initialized. Got minval=%s, maxval=%s" %(self.info.minval, self.info.maxval))
except:
logging.getLogger("HWR").info("info initialized. Cannot get limits")
# prepare polling
# if the polling value is a number set it as the taurus polling period
if self.polling:
if type(self.polling) == int:
self.attribute.changePollingPeriod(self.polling)
self.attribute.addListener(self.objectListener)
def __attribute_listener(self, evt_src, evt_type, evt_value):
if evt_type in (PyTango.EventType.PERIODIC_EVENT,
PyTango.EventType.CHANGE_EVENT):
name = evt_src.getNormalName()
if name:
print "attribute_listener", name
attr = Attribute(name)
fmt = attr.getFormat()
unit = attr.getUnit()
value = evt_value.value
if evt_value.type is PyTango._PyTango.CmdArgType.DevState:
value_str = str(value) # e.g. "ON"
else:
value_str = fmt % value # e.g. "2.40e-5"
attr_type = str(evt_value.type)
self.js.evaljs.emit("Synoptic.setAttribute('%s', '%s', '%s', '%s')" %
(name, value_str, attr_type, unit))
def __init__(self, name, callback):
print self.__class__.__name__, name
self.name = name
self.callback = callback
self._last_time = 0
self.last_value_event = None
self.last_config_event = None
self.attribute = Attribute(self.name)
self.attribute.addListener(self)
def setModel(self, device):
print self.__class__.__name__, "setModel", device
TaurusWidget.setModel(self, device)
self.device_and_state.setModel(device)
self.status_area.setModel(device)
if device:
self.form.setModel(
["%s/%s" % (device, attribute) for attribute in self.attrs])
attrname = "%s/%s" % (device, "Voltage")
self.valuebar.setModel(attrname)
# self.state_button.setModel(device)
attr = Attribute(attrname)
self.current_label.setText("%s [%s]" % (attr.label, attr.unit))
else:
self.form.setModel(None)
self.valuebar.setModel(None)
def _add_listener(self, model):
try:
listener = self.listeners[model] = Attribute(model)
# to make loopkups more efficient, we also keep an "inverted"
# mapping of listeners->models. But since some models may map
# to the *same* listener (e.g. eval expressions), this must
# be a one-to-many map.
if listener in self.inverse_listeners:
self.inverse_listeners[listener][model] = True
else:
self.inverse_listeners[listener] = CaselessDict([(model, True)
])
listener.addListener(self.handle_event)
return listener
except (TaurusException, AttributeError) as e:
print "Failed to subscribe to model %s! %s" % (model, e)
def PreStartOneCT(self, axis):
if Ni660XCTCtrl.PreStartOneCT(self, axis) and axis != 1:
initial_pos_value = self.attributes[axis]['initialpos']
self.attributes[axis]['initialpos'] = None
if initial_pos_value is None:
initial_pos_attr = self.attributes[axis]['initialposattr']
if len(initial_pos_attr) > 0:
attr_value = Attribute(initial_pos_attr).read().value
try:
initial_pos_value = float(attr_value)
except ValueError:
msg = "initialPosAttr (%s) is not float" % initial_pos_attr
raise Exception(msg)
else:
initial_pos_value = 0
self.attributes[axis]["initialposvalue"] = initial_pos_value
return True
def init_device(self):
try:
self.attribute = Attribute(self.model)
#
# DIRTY FIX to make compatible taurus listeners and existence of Tango channels/commands
# as defined in Command/Tango.py
#
# if self.attribute.__class__ == taurus.core.tango.tangoattribute.TangoAttribute:
# dev = self.attribute.getParentObj()
# dp = dev.getHWObj()
# try:
# dp.subscribe_event = dp._subscribe_event
# except AttributeError:
# pass
# logging.getLogger("HWR").debug("initialized")
except DevFailed as traceback:
self.imported = False
return
# read information
try:
if taurus.Release.version_info[0] == 3:
ranges = self.attribute.getConfig().getRanges()
if ranges is not None and ranges[0] != "Not specified":
self.info.minval = float(ranges[0])
if ranges is not None and ranges[-1] != "Not specified":
self.info.maxval = float(ranges[-1])
elif taurus.Release.version_info[0] > 3: # taurus 4 and beyond
minval, maxval = self.attribute.ranges()
self.info.minval = minval.magnitude
self.info.maxval = maxval.magnitude
except BaseException:
import traceback
logging.getLogger("HWR").info("info initialized. Cannot get limits")
logging.getLogger("HWR").info("%s" % traceback.format_exc())
# prepare polling
# if the polling value is a number set it as the taurus polling period
if self.polling:
if isinstance(self.polling, types.IntType):
self.attribute.changePollingPeriod(self.polling)
self.attribute.addListener(self.objectListener)
def init_device(self):
try:
self.attribute = Attribute(self.model)
#
# DIRTY FIX to make compatible taurus listeners and existence of Tango channels/commands
# as defined in Command/Tango.py
#
#if self.attribute.__class__ == taurus.core.tango.tangoattribute.TangoAttribute:
# dev = self.attribute.getParentObj()
# dp = dev.getHWObj()
# try:
# dp.subscribe_event = dp._subscribe_event
# except AttributeError:
# pass
#logging.getLogger("HWR").debug("initialized")
except DevFailed, traceback:
self.imported = False
return
def __get_t3_name(self, item):
# check if the item is a device name or an attribute name
try:
proxy = Device(item)
except TaurusException:
try:
proxy = Attribute(item)
except TaurusException:
raise KeyError(item)
v = proxy.getNameValidator()
params = v.getParams(proxy.getFullName())
name = '{0}:{1}/{2}'.format(params['host'].split('.')[0],
params['port'], params['devicename'])
attr_name = params.get('attributename', None)
if attr_name is not None:
name = '{0}/{1}'.format(name, params['attributename'])
return name
def setModel(self, device):
print self.__class__.__name__, "setModel", device
TaurusWidget.setModel(self, device)
self.device_and_state.setModel(device)
if device:
self.form.setModel(["%s/%s" % (device, attribute)
for attribute in self.attrs])
db = PyTango.Database()
magnet = db.get_device_property(device, "MagnetProxies")["MagnetProxies"][0]
magnet_type = PyTango.Database().get_device_property(magnet, "Type")["Type"][0]
self.magnet_type_label.setText("Magnet type: <b>%s</b>" % magnet_type)
attrname = "%s/%s" % (device, "MainFieldComponent")
self.valuebar.setModel(attrname)
attr = Attribute(attrname)
self.current_label.setText("%s [%s]" % (attr.label, attr.unit))
self.status_area.setModel(device)
else:
self.form.setModel(None)
self.valuebar.setModel(None)
self.status_area.setModel(None)
def setModel(self, attrs):
if not attrs:
for att, col in zip(self.attributes, self._columns):
att and att.removeListener(col.event_received)
else:
try:
TaurusWidget.setModel(self, attrs[0].rsplit("/", 1)[0])
self.attributes = [Attribute(a) for a in attrs]
self.table.setColumnCount(len(attrs))
fmt = "%s [%s]"
labels = []
for a in self.attributes:
config = a.getConfig()
label = fmt % (config.getLabel(), config.getUnit())
labels.append(label)
self.table.setHorizontalHeaderLabels(labels)
header = self.table.horizontalHeader()
header.setResizeMode(QtGui.QHeaderView.Stretch)
# Check if there are any columns at all
row_lengths = [len(a.read().value) for a in self.attributes
if a.read().quality == PyTango.AttrQuality.ATTR_VALID]
if not any(row_lengths):
return None
self.table.setRowCount(max(row_lengths))
self._values = {}
self._config = {}
self._columns = []
for i, att in enumerate(self.attributes):
# JFF: this is a workaround for a behavior in Taurus. Just
# adding a new listener to each attribute does not work, the
# previous ones get removed for some reason.
col = AttributeColumn(self, i)
self._columns.append(col) # keep reference to prevent GC
att.addListener(col.event_received)
except PyTango.DevFailed:
pass
def setModel(self, devices, attributes=[]):
if not devices:
for dev, attrs in self.attributes.items():
for att in attrs:
att and att.removeListener(
self._items[dev][att.name].event_received)
else:
try:
# TaurusWidget.setModel(self, attrs[0].rsplit("/", 1)[0])
attrnames = [a[0] if isinstance(a, tuple) else a
for a in attributes]
self.attributes = dict((dev, [Attribute("%s/%s" % (dev, a))
for a in attrnames])
for dev in devices)
self.table.setColumnCount(len(attributes) + 1)
colnames = [a[1] if isinstance(a, tuple) else a
for a in attributes]
labels = ["Device"] + colnames
self.table.setHorizontalHeaderLabels(labels)
header = self.table.horizontalHeader()
header.setResizeMode(QtGui.QHeaderView.Stretch)
# Check if there are any columns at all
self.table.setRowCount(len(devices))
for r, (dev, attrs) in enumerate(self.attributes.items()):
item = QtGui.QTableWidgetItem(dev)
item.setFlags(QtCore.Qt.ItemIsSelectable |
QtCore.Qt.ItemIsEnabled)
self.table.setItem(r, 0, item)
for c, att in enumerate(attrs, 1):
# JFF: this is a workaround for a behavior in Taurus. Just
# adding a new listener to each attribute does not work, the
# previous ones get removed for some reason.
item = TableItem(self.trigger)
self.table.setItem(r, c, item)
att.addListener(item.event_received)
except PyTango.DevFailed:
pass
def attribute(self):
return Attribute(self.name)
class TaurusPlotDataItem(PlotDataItem, TaurusBaseComponent):
"""A taurus-ified PlotDataItem"""
def __init__(self, *args, **kwargs):
"""
Accepts same args and kwargs as PlotDataItem, plus:
:param xModel: (str) Taurus model name for abscissas values.
Default=None
:param yModel: (str) Taurus model name for ordinate values.
Default=None
"""
xModel = kwargs.pop('xModel', None)
yModel = kwargs.pop('yModel', None)
PlotDataItem.__init__(self, *args, **kwargs)
TaurusBaseComponent.__init__(self, 'TaurusBaseComponent')
self._x = None
self._y = None
self.xModel = None
if xModel is not None:
self.setXModel(xModel)
if yModel is not None:
self.setModel(yModel)
self.registerConfigProperty(self.getOpts, self.setOpts, 'opts')
self.setModelInConfig(True)
self.registerConfigProperty(self.getXModelName, self.setXModel,
'XModel')
def setXModel(self, xModel):
if not xModel:
if self.xModel is not None:
self.xModel.removeListener(self)
self.xModel = None
return
self.xModel = Attribute(xModel)
self._x = self.xModel.read().rvalue
self.xModel.addListener(self)
def getXModelName(self):
if self.xModel is None:
return None
else:
return self.xModel.getFullName()
def handleEvent(self, evt_src, evt_type, evt_value):
if evt_type not in (TaurusEventType.Change, TaurusEventType.Periodic):
return
yModel = self.getModelObj()
if yModel == evt_src and yModel is not None:
self._y = evt_value.rvalue
if self.xModel == evt_src and self.xModel is not None:
self._x = evt_value.rvalue
self.setData(x=self._x, y=self._y)
def getOpts(self):
from taurus.qt.qtgui.tpg import serialize_opts
return serialize_opts(copy.copy(self.opts))
def setOpts(self, opts):
# creates QPainters (QPen or QBrush) from a pickle loaded file
# for adapt the serialized objects into PlotDataItem properties
from taurus.qt.qtgui.tpg import deserialize_opts
self.opts = deserialize_opts(opts)
# This is a workaround for the following pyqtgraph's bug:
# https://github.com/pyqtgraph/pyqtgraph/issues/531
if opts['connect'] == 'all':
self.opts['connect'] = 'all'
elif opts['connect'] == 'pairs':
self.opts['connect'] = 'pairs'
elif opts['connect'] == 'finite':
self.opts['connect'] = 'finite'
def getFullModelNames(self):
return (self.getXModelName(), self.getFullModelName())
def onSelectionChanged(self, models):
if self._oldModels in [None, []]:
self._attrDict = {}
for model in models:
try:
attr = Attribute(model)
except:
# old PyTango versions do not handle unicode
attr = Attribute(str(model))
#force a read -> attr.read()
attr.addListener(self)
legend = qt.safe_str(attr.getNormalName())
self._attrDict[legend] = attr
self._oldModels = models
else:
keptModels = []
newModels = []
for model in models:
if model in self._oldModels:
keptModels.append(model)
else:
newModels.append(model)
for model in self._oldModels:
if model not in keptModels:
attr = Attribute(model)
attr.removeListener(self)
legend = qt.safe_str(attr.getNormalName())
if legend in self._attrDict:
del self._attrDict[legend]
print("Trying to remove ", legend)
self.removeCurve(legend, replot=False)
for model in newModels:
attr = Attribute(model)
# attr.read()
attr.addListener(self)
legend = qt.safe_str(attr.getNormalName())
self._attrDict[legend] = attr
self._oldModels = keptModels + newModels
class TaurusAttribute(object):
"""This object is a listener for the taurus attribute value.
When a attribute changes it sends an event. The event
triggers a call to *eventReceived*. *eventReceived* will transform
the change event into a JSON encoded string and sends this
string through the web socket to the client"""
def __init__(self, name, callback):
print self.__class__.__name__, name
self.name = name
self.callback = callback
self._last_time = 0
self.last_value_event = None
self.last_config_event = None
self.attribute = Attribute(self.name)
self.attribute.addListener(self)
def eventReceived(self, evt_src, evt_type, evt_value):
"""Transforms the event into a JSON encoded string and sends this
string into the web socket"""
modelObj = evt_src
data = {}
if evt_type == TaurusEventType.Error:
data["event_type"] = "error"
data["error"] = error_str(evt_value)
else:
if evt_type == TaurusEventType.Config:
modelObj = evt_src.getParentObj()
data['event_type'] = "config"
data['description'] = evt_src.description
data['label'] = evt_src.label
data["unit"] = evt_src.unit if evt_src.unit != "No unit" else ""
data["format"] = evt_src.format
self.last_config_event = data
else:
self._last_time = evt_value.time.tv_sec
data["event_type"] = "value"
value = evt_value.value
quality = evt_value.quality
fmt = evt_value.data_format
if fmt == DataFormat._0D:
html = modelObj.displayValue(value)
if isinstance(value, PyTango._PyTango.DevState):
value = value.name
if isinstance(value, str):
html = value.replace("\n", "<br>")
elif fmt in (DataFormat._1D, DataFormat._2D):
# bad, very bad performance! Don't worry for now
value = value.tolist()
html = "[...]"
data['value'] = value
data['html'] = html
data['quality'] = str(quality)
data['time'] = evt_value.time.tv_sec
data['type'] = str(evt_value.type) # can this change..?
self.last_value_event = data
data['model'] = modelObj.getNormalName()
self.write_message(data)
def write_message(self, message):
self.callback(message)
def clear(self):
try:
print "clear", self.attribute
self.attribute.removeListener(self)
del self.attribute
except PyTango.DevFailed as e:
print >>sys.stderr, "Could not unsubscribe %s: %r" % (self.name, e)
def image(self, taurusmodel=None, **kwargs):
"""
Extension to meth:`guiqwt.builder.PlotItemBuilder.image` to support passing a
'taurusmodel' as a keyword argument instead passing 'data' or 'filename'.
"""
if taurusmodel is None:
image = guiqwt.builder.PlotItemBuilder.image(self, **kwargs)
else:
title = kwargs.get('title', taurusmodel)
data = kwargs.get('data', None)
filename = kwargs.get('filename', None)
alpha_mask = kwargs.get('alpha_mask', None)
alpha = kwargs.get('alpha', None)
background_color = kwargs.get('background_color', None)
colormap = kwargs.get('colormap', None)
xdata = kwargs.get('xdata', [None, None])
ydata = kwargs.get('ydata', [None, None])
pixel_size = kwargs.get('pixel_size', None)
interpolation = kwargs.get('interpolation', 'linear')
eliminate_outliers = kwargs.get('eliminate_outliers', None)
xformat = kwargs.get('xformat', '%.1f')
yformat = kwargs.get('yformat', '%.1f')
zformat = kwargs.get('zformat', '%.1f')
forceRGB = kwargs.get('force_rgb', False)
assert isinstance(xdata, (tuple, list)) and len(xdata) == 2
assert isinstance(ydata, (tuple, list)) and len(ydata) == 2
assert filename is None
assert data is None
param = ImageParam(title=_("Image"), icon='image.png')
from taurus import Attribute
if pixel_size is None:
xmin, xmax = xdata
ymin, ymax = ydata
else:
attr = Attribute(taurusmodel)
valueobj = attr.read()
data = getattr(valueobj, 'rvalue', numpy.zeros((1, 1)))
attrdata = data
if isinstance(data, Quantity):
attrdata = data.magnitude
xmin, xmax, ymin, ymax = self.compute_bounds(attrdata,
pixel_size)
self.set_image_param(param, title, alpha_mask, alpha, interpolation,
background=background_color,
colormap=colormap,
xmin=xmin, xmax=xmax, ymin=ymin, ymax=ymax,
xformat=xformat, yformat=yformat,
zformat=zformat)
from taurus.core import DataType
if forceRGB:
if Attribute(taurusmodel).getType() == DataType.DevEncoded:
image = TaurusEncodedRGBImageItem(param)
else:
image = TaurusRGBImageItem(param)
else:
if Attribute(taurusmodel).getType() == DataType.DevEncoded:
image = TaurusEncodedImageItem(param)
else:
image = TaurusImageItem(param)
image.setModel(taurusmodel)
if eliminate_outliers is not None:
image.set_lut_range(lut_range_threshold(image, 256,
eliminate_outliers))
return image
def ReadOne(self, axis):
attr = Attribute(self._axes_taurus_attr[axis])
return attr.read().value
class TaurusAttribute(object):
"""This object is a listener for the taurus attribute value.
When a attribute changes it sends an event. The event
triggers a call to *eventReceived*. *eventReceived* will transform
the change event into a JSON encoded string and sends this
string through the web socket to the client"""
def __init__(self, name, callback):
print self.__class__.__name__, name
self.name = name
self.callback = callback
self._last_time = 0
self.last_value_event = None
self.last_config_event = None
self.attribute = Attribute(self.name)
self.attribute.addListener(self)
def eventReceived(self, evt_src, evt_type, evt_value):
"""Transforms the event into a JSON encoded string and sends this
string into the web socket"""
modelObj = evt_src
data = {}
if evt_type == TaurusEventType.Error:
data["event_type"] = "error"
data["error"] = error_str(evt_value)
else:
if evt_type == TaurusEventType.Config:
modelObj = evt_src.getParentObj()
data['event_type'] = "config"
data['description'] = evt_src.description
data['label'] = evt_src.label
data[
"unit"] = evt_src.unit if evt_src.unit != "No unit" else ""
data["format"] = evt_src.format
self.last_config_event = data
else:
self._last_time = evt_value.time.tv_sec
data["event_type"] = "value"
value = evt_value.value
quality = evt_value.quality
fmt = evt_value.data_format
if fmt == DataFormat._0D:
html = modelObj.displayValue(value)
if isinstance(value, PyTango._PyTango.DevState):
value = value.name
if isinstance(value, str):
html = value.replace("\n", "<br>")
elif fmt in (DataFormat._1D, DataFormat._2D):
# bad, very bad performance! Don't worry for now
value = value.tolist()
html = "[...]"
data['value'] = value
data['html'] = html
data['quality'] = str(quality)
data['time'] = evt_value.time.tv_sec
data['type'] = str(evt_value.type) # can this change..?
self.last_value_event = data
data['model'] = modelObj.getNormalName()
self.write_message(data)
def write_message(self, message):
self.callback(message)
def clear(self):
try:
print "clear", self.attribute
self.attribute.removeListener(self)
del self.attribute
except PyTango.DevFailed as e:
print >> sys.stderr, "Could not unsubscribe %s: %r" % (self.name,
e)
def ReadOne(self, axis):
attr = Attribute(self._axes_taurus_attr[axis])
return attr.read().value
def onSelectionChanged(self, models):
if self._oldModels in [None, []]:
for model in models:
attr = Attribute(model)
#force a read -> attr.read()
attr.addListener(self)
self._oldModels = models
else:
keptModels = []
newModels = []
for model in models:
if model in self._oldModels:
keptModels.append(model)
else:
newModels.append(model)
for model in self._oldModels:
if model not in newModels:
attr = Attribute(model)
attr.removeListener(self)
legend = attr.getNormalName()
print("Trying to remove ", legend)
self.removeCurve(legend, replot=False)
for model in newModels:
attr = Attribute(model)
# attr.read()
attr.addListener(self)
self._oldModels = keptModels + newModels
def test1():
import numpy
from taurus import Attribute
a = Attribute('sys/tg_test/1/ulong64_scalar')
a.write(numpy.uint64(88))
class SardanaChannel(ChannelObject, SardanaObject):
def __init__(self, name, attribute_name, username=None, uribase = None, polling=None, **kwargs):
super(SardanaChannel, self).__init__(name,username,**kwargs)
class ChannelInfo(object):
def __init__(self):
super(ChannelInfo, self).__init__()
self.attributeName = attribute_name
self.model = os.path.join( uribase, attribute_name )
self.attribute = None
self.value = None
self.polling = polling
self.info = ChannelInfo()
self.info.minval = None
self.info.maxval = None
logging.getLogger("HWR").debug("creating Sardana model %s, polling=%s", self.model, polling)
self.init_device()
def init_device(self):
try:
self.attribute = Attribute(self.model)
#
# DIRTY FIX to make compatible taurus listeners and existence of Tango channels/commands
# as defined in Command/Tango.py
#
#if self.attribute.__class__ == taurus.core.tango.tangoattribute.TangoAttribute:
# dev = self.attribute.getParentObj()
# dp = dev.getHWObj()
# try:
# dp.subscribe_event = dp._subscribe_event
# except AttributeError:
# pass
logging.getLogger("HWR").info("initialized")
except DevFailed as traceback:
self.imported = False
return
# read information
try:
self.info.minval, self.info.maxval = self.attribute._TangoAttribute__attr_config.getLimits()
logging.getLogger("HWR").info("info initialized. Got minval=%s, maxval=%s" %(self.info.minval, self.info.maxval))
except:
logging.getLogger("HWR").info("info initialized. Cannot get limits")
# prepare polling
# if the polling value is a number set it as the taurus polling period
if self.polling:
if type(self.polling) == int:
self.attribute.changePollingPeriod(self.polling)
self.attribute.addListener(self.objectListener)
def getValue(self):
return self._readValue()
def setValue(self, newValue, wait=False):
self._writeValue(newValue)
def _writeValue(self, newValue):
self.attribute.write(newValue)
def _readValue(self):
value = self.attribute.read().value
return value
def getInfo(self):
return self.info
def update(self, event):
data = event.event[2]
try:
newvalue = data.value
if newvalue == None:
newvalue = self.getValue()
if type(newvalue) == tuple:
newvalue = list(newvalue)
self.value = newvalue
self.emit('update', self.value)
except AttributeError:
# No value in data... this is probably a connection error
pass
def isConnected(self):
return self.attribute is not None
def channelListener(self,*args):
ev = AttributeEvent(args)
SardanaChannel._eventReceivers[id(ev)] = saferef.safe_ref(self.update)
SardanaChannel._eventsQueue.put(ev)
SardanaChannel._eventsProcessingTimer.send()
def onSelectionChanged(self, models):
if self._oldModels in [None, []]:
self._attrDict = {}
for model in models:
try:
attr = Attribute(model)
except:
# old PyTango versions do not handle unicode
attr = Attribute(str(model))
#force a read -> attr.read()
attr.addListener(self)
legend = qt.safe_str(attr.getNormalName())
self._attrDict[legend] = attr
self._oldModels = models
else:
keptModels = []
newModels = []
for model in models:
if model in self._oldModels:
keptModels.append(model)
else:
newModels.append(model)
for model in self._oldModels:
if model not in keptModels:
attr = Attribute(model)
attr.removeListener(self)
legend = qt.safe_str(attr.getNormalName())
if legend in self._attrDict:
del self._attrDict[legend]
print("Trying to remove ", legend)
self.removeCurve(legend, replot=False)
for model in newModels:
attr = Attribute(model)
# attr.read()
attr.addListener(self)
legend = qt.safe_str(attr.getNormalName())
self._attrDict[legend] = attr
self._oldModels = keptModels + newModels
class SardanaChannel(ChannelObject, SardanaObject):
def __init__(
self, name, attribute_name, username=None, uribase=None, polling=None, **kwargs
):
super(SardanaChannel, self).__init__(name, username, **kwargs)
class ChannelInfo(object):
def __init__(self):
super(ChannelInfo, self).__init__()
self.attributeName = attribute_name
self.model = os.path.join(uribase, attribute_name)
self.attribute = None
self.value = None
self.polling = polling
self.info = ChannelInfo()
self.info.minval = None
self.info.maxval = None
self.init_device()
def init_device(self):
try:
self.attribute = Attribute(self.model)
#
# DIRTY FIX to make compatible taurus listeners and existence of Tango channels/commands
# as defined in Command/Tango.py
#
# if self.attribute.__class__ == taurus.core.tango.tangoattribute.TangoAttribute:
# dev = self.attribute.getParentObj()
# dp = dev.getHWObj()
# try:
# dp.subscribe_event = dp._subscribe_event
# except AttributeError:
# pass
# logging.getLogger("HWR").debug("initialized")
except DevFailed as traceback:
self.imported = False
return
# read information
try:
if taurus.Release.version_info[0] == 3:
ranges = self.attribute.getConfig().getRanges()
if ranges is not None and ranges[0] != "Not specified":
self.info.minval = float(ranges[0])
if ranges is not None and ranges[-1] != "Not specified":
self.info.maxval = float(ranges[-1])
elif taurus.Release.version_info[0] > 3: # taurus 4 and beyond
minval, maxval = self.attribute.ranges()
self.info.minval = minval.magnitude
self.info.maxval = maxval.magnitude
except BaseException:
import traceback
logging.getLogger("HWR").info("info initialized. Cannot get limits")
logging.getLogger("HWR").info("%s" % traceback.format_exc())
# prepare polling
# if the polling value is a number set it as the taurus polling period
if self.polling:
if isinstance(self.polling, types.IntType):
self.attribute.changePollingPeriod(self.polling)
self.attribute.addListener(self.objectListener)
def getValue(self):
return self._readValue()
def setValue(self, newValue):
self._writeValue(newValue)
def _writeValue(self, newValue):
self.attribute.write(newValue)
def _readValue(self):
value = self.attribute.read().value
return value
def getInfo(self):
try:
b = dir(self.attribute)
self.info.minval, self.info.maxval = (
self.attribute._TangoAttribute__attr_config.getLimits()
)
except BaseException:
import traceback
logging.getLogger("HWR").info("%s" % traceback.format_exc())
return self.info
def update(self, event):
data = event.event[2]
try:
newvalue = data.value
if newvalue is None:
newvalue = self.getValue()
if isinstance(newvalue, types.TupleType):
newvalue = list(newvalue)
self.value = newvalue
self.emit("update", self.value)
except AttributeError:
# No value in data... this is probably a connection error
pass
def isConnected(self):
return self.attribute is not None
def channelListener(self, *args):
ev = AttributeEvent(args)
SardanaChannel._eventReceivers[id(ev)] = saferef.safe_ref(self.update)
SardanaChannel._eventsQueue.put(ev)
SardanaChannel._eventsProcessingTimer.send()
class TaurusPlotDataItem(PlotDataItem, TaurusBaseComponent):
"""A taurus-ified PlotDataItem"""
def __init__(self, *args, **kwargs):
"""
Accepts same args and kwargs as PlotDataItem, plus:
:param xModel: (str) Taurus model name for abscissas values.
Default=None
:param yModel: (str) Taurus model name for ordinate values.
Default=None
:param colors: (generator) An infinite generator of QColor objects
"""
xModel = kwargs.pop("xModel", None)
yModel = kwargs.pop("yModel", None)
colors = kwargs.pop("colors", LoopList(CURVE_COLORS))
if "pen" not in kwargs:
kwargs["pen"] = next(colors)
PlotDataItem.__init__(self, *args, **kwargs)
TaurusBaseComponent.__init__(self, "TaurusBaseComponent")
self._x = None
self._y = None
self.xModel = None
if xModel is not None:
self.setXModel(xModel)
if yModel is not None:
self.setModel(yModel)
self.registerConfigProperty(self.getOpts, self.setOpts, "opts")
self.setModelInConfig(True)
self.registerConfigProperty(
self.getXModelName, self.setXModel, "XModel"
)
def setXModel(self, xModel):
if self.xModel is not None:
self.xModel.removeListener(self)
if not xModel:
self.xModel = None
return
self.xModel = Attribute(xModel)
self.xModel.addListener(self)
def getXModelName(self):
if self.xModel is None:
return None
else:
return self.xModel.getFullName()
def handleEvent(self, evt_src, evt_type, evt_value):
if evt_type not in (TaurusEventType.Change, TaurusEventType.Periodic):
return
yModel = self.getModelObj()
if yModel == evt_src:
if yModel is not None:
self._y = evt_value.rvalue
else:
self._y = None
if self.xModel == evt_src:
if self.xModel is not None:
self._x = evt_value.rvalue
else:
self._x = None
try:
self.setData(x=self._x, y=self._y)
except Exception as e:
self.debug("Could not set data. Reason: %r", e)
def getOpts(self):
from taurus_pyqtgraph import serialize_opts
return serialize_opts(copy.copy(self.opts))
def setOpts(self, opts):
# creates QPainters (QPen or QBrush) from a pickle loaded file
# for adapt the serialized objects into PlotDataItem properties
from taurus_pyqtgraph import deserialize_opts
self.opts = deserialize_opts(opts)
# This is a workaround for the following pyqtgraph's bug:
# https://github.com/pyqtgraph/pyqtgraph/issues/531
if opts["connect"] == "all":
self.opts["connect"] = "all"
elif opts["connect"] == "pairs":
self.opts["connect"] = "pairs"
elif opts["connect"] == "finite":
self.opts["connect"] = "finite"
def getFullModelNames(self):
return (self.getXModelName(), self.getFullModelName())
class SardanaChannel(ChannelObject, SardanaObject):
def __init__(self,
name,
attribute_name,
username=None,
uribase=None,
polling=None,
**kwargs):
super(SardanaChannel, self).__init__(name, username, **kwargs)
class ChannelInfo(object):
def __init__(self):
super(ChannelInfo, self).__init__()
self.attributeName = attribute_name
self.model = os.path.join(uribase, attribute_name)
self.attribute = None
self.value = None
self.polling = polling
self.info = ChannelInfo()
self.info.minval = None
self.info.maxval = None
self.init_device()
def init_device(self):
try:
self.attribute = Attribute(self.model)
#
# DIRTY FIX to make compatible taurus listeners and existence of Tango channels/commands
# as defined in Command/Tango.py
#
# if self.attribute.__class__ == taurus.core.tango.tangoattribute.TangoAttribute:
# dev = self.attribute.getParentObj()
# dp = dev.getHWObj()
# try:
# dp.subscribe_event = dp._subscribe_event
# except AttributeError:
# pass
# logging.getLogger("HWR").debug("initialized")
except DevFailed as traceback:
self.imported = False
return
# read information
try:
if taurus.Release.version_info[0] == 3:
ranges = self.attribute.getConfig().getRanges()
if ranges is not None and ranges[0] != "Not specified":
self.info.minval = float(ranges[0])
if ranges is not None and ranges[-1] != "Not specified":
self.info.maxval = float(ranges[-1])
elif taurus.Release.version_info[0] > 3: # taurus 4 and beyond
minval, maxval = self.attribute.ranges()
self.info.minval = minval.magnitude
self.info.maxval = maxval.magnitude
except BaseException:
import traceback
logging.getLogger("HWR").info(
"info initialized. Cannot get limits")
logging.getLogger("HWR").info("%s" % traceback.format_exc())
# prepare polling
# if the polling value is a number set it as the taurus polling period
if self.polling:
if isinstance(self.polling, types.IntType):
self.attribute.changePollingPeriod(self.polling)
self.attribute.addListener(self.objectListener)
def getValue(self):
return self._readValue()
def setValue(self, newValue):
self._writeValue(newValue)
def _writeValue(self, newValue):
self.attribute.write(newValue)
def _readValue(self):
value = self.attribute.read().value
return value
def getInfo(self):
try:
b = dir(self.attribute)
self.info.minval, self.info.maxval = (
self.attribute._TangoAttribute__attr_config.getLimits())
except BaseException:
import traceback
logging.getLogger("HWR").info("%s" % traceback.format_exc())
return self.info
def update(self, event):
data = event.event[2]
try:
newvalue = data.value
if newvalue is None:
newvalue = self.getValue()
if isinstance(newvalue, types.TupleType):
newvalue = list(newvalue)
self.value = newvalue
self.emit("update", self.value)
except AttributeError:
# No value in data... this is probably a connection error
pass
def isConnected(self):
return self.attribute is not None
def channelListener(self, *args):
ev = AttributeEvent(args)
SardanaChannel._eventReceivers[id(ev)] = saferef.safe_ref(self.update)
SardanaChannel._eventsQueue.put(ev)
SardanaChannel._eventsProcessingTimer.send()
class SardanaChannel(ChannelObject, SardanaObject):
def __init__(self,
name,
attribute_name,
username=None,
uribase=None,
polling=None,
**kwargs):
super(SardanaChannel, self).__init__(name, username, **kwargs)
class ChannelInfo(object):
def __init__(self):
super(ChannelInfo, self).__init__()
self.attributeName = attribute_name
self.model = os.path.join(uribase, attribute_name)
self.attribute = None
self.value = None
self.polling = polling
self.info = ChannelInfo()
self.info.minval = None
self.info.maxval = None
logging.getLogger("HWR").debug("creating Sardana model %s, polling=%s",
self.model, polling)
self.init_device()
def init_device(self):
try:
self.attribute = Attribute(self.model)
#
# DIRTY FIX to make compatible taurus listeners and existence of Tango channels/commands
# as defined in Command/Tango.py
#
#if self.attribute.__class__ == taurus.core.tango.tangoattribute.TangoAttribute:
# dev = self.attribute.getParentObj()
# dp = dev.getHWObj()
# try:
# dp.subscribe_event = dp._subscribe_event
# except AttributeError:
# pass
logging.getLogger("HWR").info("initialized")
except DevFailed as traceback:
self.imported = False
return
# read information
try:
self.info.minval, self.info.maxval = self.attribute._TangoAttribute__attr_config.getLimits(
)
logging.getLogger("HWR").info(
"info initialized. Got minval=%s, maxval=%s" %
(self.info.minval, self.info.maxval))
except:
logging.getLogger("HWR").info(
"info initialized. Cannot get limits")
# prepare polling
# if the polling value is a number set it as the taurus polling period
if self.polling:
if type(self.polling) == int:
self.attribute.changePollingPeriod(self.polling)
self.attribute.addListener(self.objectListener)
def getValue(self):
return self._readValue()
def setValue(self, newValue, wait=False):
self._writeValue(newValue)
def _writeValue(self, newValue):
self.attribute.write(newValue)
def _readValue(self):
value = self.attribute.read().value
return value
def getInfo(self):
return self.info
def update(self, event):
data = event.event[2]
try:
newvalue = data.value
if newvalue == None:
newvalue = self.getValue()
if type(newvalue) == tuple:
newvalue = list(newvalue)
self.value = newvalue
self.emit('update', self.value)
except AttributeError:
# No value in data... this is probably a connection error
pass
def isConnected(self):
return self.attribute is not None
def channelListener(self, *args):
ev = AttributeEvent(args)
SardanaChannel._eventReceivers[id(ev)] = saferef.safe_ref(self.update)
SardanaChannel._eventsQueue.put(ev)
SardanaChannel._eventsProcessingTimer.send()
