def load(self, fileOrName, parentWidget=None):
if self._rootWidget is not None:
raise Exception("UiLoader is already started loading UI!")
widget = super(UiLoader, self).load(fileOrName, parentWidget)
if widget != self._rootWidget:
log.error("Qt: Returned widget isn't the root widget... ")
self._rootWidget = None
return widget
def __assertQt(name, qt=None, strict=True):
qt = qt or __QT
if name is None or qt is None:
return
qt_name = qt.__name__
if qt_name != name:
msg = "Cannot use %s because %s already in use" % (name, qt_name)
if strict:
raise Exception(msg)
else:
__log.error(msg)
def load(self, fileOrName, parentWidget=None):
if self._rootWidget is not None:
raise Exception("UiLoader is already started loading UI!")
widget = super(UiLoader, self).load(fileOrName, parentWidget)
if widget != self._rootWidget:
log.error("Qt: Returned widget isn't the root widget... ")
self._rootWidget = None
return widget
def __assertQt(name, qt=None, strict=True):
qt = qt or __QT
if name is None or qt is None:
return
qt_name = qt.__name__
if qt_name != name:
msg = "Cannot use %s because %s already in use" % (name, qt_name)
if strict:
raise Exception(msg)
else:
__log.error(msg)
def loadUI(uiFilename, parent=None):
global __uiLoader
if __uiLoader is None:
__uiLoader = UiLoader()
uiFile = __QtCore.QFile(uiFilename, parent)
if not uiFile.open(__QtCore.QIODevice.ReadOnly):
log.error("Qt: Couldn't open file %r!", uiFilename)
return None
try:
return __uiLoader.load(uiFile, parent)
except:
log.exception("Exception loading UI from %r!", uiFilename)
finally:
uiFile.close()
uiFile.deleteLater()
return None
def loadUI(uiFilename, parent=None):
global __uiLoader
if __uiLoader is None:
__uiLoader = UiLoader()
uiFile = __QtCore.QFile(uiFilename, parent)
if not uiFile.open(__QtCore.QIODevice.ReadOnly):
log.error("Qt: Couldn't open file %r!", uiFilename)
return None
try:
return __uiLoader.load(uiFile, parent)
except:
log.exception("Exception loading UI from %r!", uiFilename)
finally:
uiFile.close()
uiFile.deleteLater()
return None
def set(self, conf, mnt_grps=None):
"""Sets the ExperimentConfiguration dictionary."""
env = dict(ScanDir=conf.get('ScanDir'),
ScanFile=conf.get('ScanFile'),
DataCompressionRank=conf.get('DataCompressionRank', -1),
ActiveMntGrp=conf.get('ActiveMntGrp'),
PreScanSnapshot=conf.get('PreScanSnapshot'))
if mnt_grps is None:
mnt_grps = conf['MntGrpConfigs'].keys()
self._door.putEnvironments(env)
codec = CodecFactory().getCodec('json')
for mnt_grp in mnt_grps:
try:
mnt_grp_cfg = conf['MntGrpConfigs'][mnt_grp]
if mnt_grp_cfg is None: # a mntGrp to be deleted
pool = self._getPoolOfElement(mnt_grp)
pool.DeleteElement(mnt_grp)
else:
try:
mnt_grp_dev = Device(mnt_grp)
except: # if the mnt_grp did not already exist, create it now
chconfigs = getChannelConfigs(mnt_grp_cfg)
chnames, chinfos = zip(*chconfigs) # unzipping
# We assume that all the channels belong to the same
# pool!
pool = self._getPoolOfElement(chnames[0])
pool.createMeasurementGroup([mnt_grp] + list(chnames))
mnt_grp_dev = Device(mnt_grp)
# TODO when we start using measurement group extension change the
# code below with the following:
# mnt_grp.setConfiguration(mnt_grp_cfg)
data = codec.encode(('', mnt_grp_cfg))[1]
mnt_grp_dev.write_attribute('configuration', data)
except Exception, e:
from taurus.core.util.log import error
error(
'Could not create/delete/modify Measurement group "%s": %s',
mnt_grp, repr(e))
def set(self, conf, mnt_grps=None):
"""Sets the ExperimentConfiguration dictionary."""
env = dict(ScanDir=conf.get('ScanDir'),
ScanFile=conf.get('ScanFile'),
DataCompressionRank=conf.get('DataCompressionRank', -1),
ActiveMntGrp=conf.get('ActiveMntGrp'),
PreScanSnapshot=conf.get('PreScanSnapshot'))
if mnt_grps is None:
mnt_grps = conf['MntGrpConfigs'].keys()
self._door.putEnvironments(env)
codec = CodecFactory().getCodec('json')
for mnt_grp in mnt_grps:
try:
mnt_grp_cfg = conf['MntGrpConfigs'][mnt_grp]
if mnt_grp_cfg is None: # a mntGrp to be deleted
pool = self._getPoolOfElement(mnt_grp)
pool.DeleteElement(mnt_grp)
else:
try:
mnt_grp_dev = Device(mnt_grp)
except: # if the mnt_grp did not already exist, create it now
chconfigs = getChannelConfigs(mnt_grp_cfg)
chnames, chinfos = zip(*chconfigs) # unzipping
# We assume that all the channels belong to the same
# pool!
pool = self._getPoolOfElement(chnames[0])
pool.createMeasurementGroup([mnt_grp] + list(chnames))
mnt_grp_dev = Device(mnt_grp)
# TODO when we start using measurement group extension change the
# code below with the following:
# mnt_grp.setConfiguration(mnt_grp_cfg)
data = codec.encode(('', mnt_grp_cfg))[1]
mnt_grp_dev.write_attribute('configuration', data)
except Exception, e:
from taurus.core.util.log import error
error(
'Could not create/delete/modify Measurement group "%s": %s', mnt_grp, repr(e))
def createWidget(self, className, parent=None, name=''):
widget = super(UiLoader, self).createWidget(
className, parent, name)
if name:
if self._rootWidget is None:
self._rootWidget = widget
elif not hasattr(self._rootWidget, name):
setattr(self._rootWidget, name, widget)
else:
log.error("Qt: Name collision! Ignoring second "
"occurrance of %r.", name)
if parent is not None:
setattr(parent, name, widget)
else:
# Sadly, we can't reparent it to self, since QUiLoader
# isn't a QWidget.
log.error("Qt: No parent specified! This will probably "
"crash due to C++ object deletion.")
return widget
def createWidget(self, className, parent=None, name=''):
widget = super(UiLoader,
self).createWidget(className, parent, name)
if name:
if self._rootWidget is None:
self._rootWidget = widget
elif not hasattr(self._rootWidget, name):
setattr(self._rootWidget, name, widget)
else:
log.error(
"Qt: Name collision! Ignoring second "
"occurrance of %r.", name)
if parent is not None:
setattr(parent, name, widget)
else:
# Sadly, we can't reparent it to self, since QUiLoader
# isn't a QWidget.
log.error("Qt: No parent specified! This will probably "
"crash due to C++ object deletion.")
return widget
