def subscribe(self, models=[]):
"""Set the currently subscribed list of models."""
attrs = CaselessDict()
taurusattrs = self._taurus_attributes
for model in models:
if self.device_validator.isValid(model):
# for convenience, we subscribe to State for any devices
modelstate = model + "/State"
attrs[modelstate] = True
if modelstate not in taurusattrs.keys():
try:
taurusattrs[modelstate] = Attribute(modelstate)
except TaurusException as e:
print "Failed to create Taurus Attribute for model %s! %s" % (
model, e)
elif (self.attribute_validator.isValid(model)
or self.eval_validator.isValid(model)):
attrs[model] = True
if model not in taurusattrs.keys():
try:
taurusattrs[model] = Attribute(model)
except TaurusException as e:
print "Failed to create Taurus Attribute for model %s! %s" % (
model, e)
except Exception as e:
print "Failed to create Taurus Attribute for model %s!" % (
model)
else:
print "Invalid Taurus model %s!?" % model
self._attributes = attrs
self._taurus_attributes = taurusattrs
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 setModel(self, model):
if model:
split_model = model.split("/")
if len(split_model) < 4:
self.status = Attribute("%s/Status" % model)
else:
self.status = Attribute(model)
self.status.addListener(self.onStatusChange)
else:
self.status and self.status.removeListener(self.onStatusChange)
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])
#---- Partie qui correspond a l'appel de la bdd de Tango
# avec types d'aimant etc ... on peut le faire a la main pour tester
# pour le moment nous sommes obliges de sauter cette partie
db_ok = False
if db_ok:
db = PyTango.Database()
magnet = db.get_device_property(
device, "MagnetProxies")["MagnetProxies"][0]
magnet_type = PyTango.Database().get_device_property(
magnet, "Type")["Type"][0]
else:
magnet_type = 'Dipole'
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 __init__(self, name, keeper):
self.name = name
self.keepers = [keeper]
self._last_time = 0
self.last_value_event = None
self.last_config_event = None
self.attribute = Attribute(self.name)
self.attribute.addListener(self)
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 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 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 setXModel(self, xModel):
"""Sets the taurus model for the x component"""
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 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 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
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 AttributeError:
print "Failed to subscribe to model %s!" % model
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 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 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 __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_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 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 __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, 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 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(self):
return Attribute(self.name)
def test1():
import numpy
from taurus import Attribute
a = Attribute('sys/tg_test/1/ulong64_scalar')
a.write(numpy.uint64(88))
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
