def setupLayout(self):
self.startLabel = QTangoStartLabel(self.sizes, self.attrColors)
self.endLabel = QTangoEndLabel(self.sizes, self.attrColors)
self.nameLabel = QTangoAttributeNameLabel(self.sizes, self.attrColors)
self.nameLabel.setSizePolicy(QtWidgets.QSizePolicy.Expanding,
QtWidgets.QSizePolicy.Minimum)
self.unitLabel = QTangoAttributeUnitLabel(self.sizes, self.attrColors)
self.valueSpinbox = QTangoReadAttributeLabel(self.sizes,
self.attrColors)
self.unitLabel.setAlignment(QtCore.Qt.AlignLeft
| QtCore.Qt.AlignBottom)
layout = QtWidgets.QHBoxLayout(self)
margin = int(self.sizes.barHeight / 10)
layout.setContentsMargins(margin, margin, margin, margin)
layout.addWidget(self.startLabel)
layout.addWidget(self.nameLabel)
layout.addWidget(self.valueSpinbox)
layout.addWidget(self.unitLabel)
layout.addWidget(self.endLabel)
self.setMaximumWidth(self.sizes.readAttributeWidth)
self.setMinimumWidth(self.sizes.readAttributeWidth)
self.setSizePolicy(QtWidgets.QSizePolicy.Minimum,
QtWidgets.QSizePolicy.Minimum)
def setup_horizontal(self, slider_style=2, show_write_widget=False):
logger.debug("QTangoAttributeSlider.setupLayout")
self.startLabel = QTangoStartLabel(self.sizes, self.attrColors)
self.endLabel = QTangoEndLabel(self.sizes, self.attrColors)
self.nameLabel = QTangoAttributeNameLabel(self.sizes, self.attrColors)
self.unitLabel = QTangoAttributeUnitLabel(self.sizes, self.attrColors)
self.valueLabel = QTangoReadAttributeLabel(self.sizes, self.attrColors)
if show_write_widget is True:
logger.debug("Adding write widgets")
self.writeValueEdit = QTangoWriteAttributeLineEdit(
self.sizes, self.attrColors)
self.writeValueEdit.newValueSignal.connect(self.updateWriteValue)
self.writeLabel = QTangoStartLabel(self.sizes, self.attrColors)
self.writeLabel.current_attr_color = self.attrColors.backgroundColor
self.writeLabel.setupLayout()
self.newValueSignal = self.writeValueEdit.newValueSignal
# Select slider style:
if slider_style == 1:
self.valueSlider = QTangoHSliderBase(self.sizes, self.attrColors)
elif slider_style == 3:
self.valueSlider = QTangoHSliderBaseCompact(
self.sizes, self.attrColors)
else:
self.valueSlider = QTangoHSliderBase2(self.sizes, self.attrColors)
logger.debug("QTangoAttributeSlider.setupLayout widget")
self.layout = QtWidgets.QHBoxLayout(self)
self.layout.setContentsMargins(0, 0, 0, 0)
self.layout.setSpacing(self.sizes.barWidth / 3)
self.layoutGrid = QtWidgets.QGridLayout()
self.layoutGrid.setContentsMargins(0, 0, 0, 0)
self.layoutGrid.setHorizontalSpacing(self.sizes.barWidth / 4)
self.layoutGrid.setVerticalSpacing(0)
self.layoutGrid.addWidget(self.nameLabel, 0, 0)
self.layoutGrid.addWidget(self.unitLabel, 0, 1)
self.layoutGrid.addWidget(self.valueSlider, 1, 0, 1, 2)
self.layoutGrid.addWidget(self.valueLabel, 0, 3, QtCore.Qt.AlignRight)
if show_write_widget is True:
self.layoutGrid.addWidget(self.writeLabel, 1, 2)
self.layoutGrid.addWidget(self.writeValueEdit, 1, 3,
QtCore.Qt.AlignRight)
logger.debug("QTangoAttributeSlider.setupLayout: layoutGrid")
self.layout.addWidget(self.startLabel)
self.layout.addLayout(self.layoutGrid)
self.layout.addWidget(self.endLabel)
self.setMaximumWidth(self.sizes.readAttributeWidth * 1.2)
self.setMinimumWidth(self.sizes.readAttributeWidth * 1.2)
self.setMaximumHeight(self.sizes.barHeight * 2.2)
self.setMaximumHeight(self.sizes.barHeight * 3.0)
self.setSizePolicy(QtWidgets.QSizePolicy.Fixed,
QtWidgets.QSizePolicy.Fixed)
logger.debug("QTangoAttributeSlider.setupLayout: exit")
def setupLayout(self):
self.startLabel = QTangoStartLabel(self.sizes, self.attrColors)
self.endLabel = QTangoEndLabel(self.sizes, self.attrColors)
self.nameLabel = QTangoAttributeNameLabel(self.sizes, self.attrColors)
self.nameLabel.setSizePolicy(QtWidgets.QSizePolicy.Expanding,
QtWidgets.QSizePolicy.Minimum)
self.unitLabel = QTangoAttributeUnitLabel(self.sizes, self.attrColors)
self.valueSpinbox = QTangoReadAttributeLabel(self.sizes,
self.attrColors)
self.writeValueLineEdit = QTangoWriteAttributeLineEdit(
self.sizes, self.attrColors)
self.writeValueLineEdit.setLayoutDirection(QtCore.Qt.RightToLeft)
self.writeLabel = QTangoStartLabel(self.sizes, self.attrColors)
self.writeLabel.current_attr_color = self.attrColors.backgroundColor
self.writeLabel.setupLayout()
layout = QtWidgets.QHBoxLayout(self)
margin = int(self.sizes.barHeight / 10)
layout.setContentsMargins(margin, margin, margin, margin)
layout_grid = QtWidgets.QGridLayout()
margin = int(self.sizes.barHeight / 10)
layout_grid.setContentsMargins(margin, margin, margin, margin)
layout_grid.addWidget(self.nameLabel, 0, 0)
layout_grid.addWidget(self.valueSpinbox, 0, 2)
layout_grid.addWidget(self.unitLabel, 0, 3)
layout_grid.addWidget(self.writeLabel, 1, 1)
layout_grid.addWidget(self.writeValueLineEdit, 1, 2)
layout.addWidget(self.startLabel)
layout.addLayout(layout_grid)
layout.addWidget(self.endLabel)
self.setMaximumWidth(self.sizes.readAttributeWidth)
self.setMinimumWidth(self.sizes.readAttributeWidth)
self.setSizePolicy(QtWidgets.QSizePolicy.Minimum,
QtWidgets.QSizePolicy.Minimum)
def setup_vertical(self, slider_style=4):
self.nameLabel = QTangoAttributeNameLabel(self.sizes, self.attrColors)
sizes_value = copy.copy(self.sizes)
sizes_value.barHeight *= 1.25
self.startLabel = QTangoStartLabel(self.sizes, self.attrColors)
self.endLabel = QTangoEndLabel(self.sizes, self.attrColors)
self.unitLabel = QTangoAttributeUnitLabel(self.sizes, self.attrColors)
self.valueLabel = QTangoReadAttributeLabel(self.sizes, self.attrColors)
self.valueSlider = QTangoVSliderBase2(self.sizes, self.attrColors)
self.writeLabel = QTangoStartLabel(self.sizes, self.attrColors)
self.writeLabel.current_attr_color = self.attrColors.backgroundColor
self.writeLabel.setupLayout()
# self.unitLabel = QTangoAttributeNameLabel(self.sizes, self.attrColors)
self.vSpacer = QtWidgets.QSpacerItem(
20, self.sizes.barHeight, QtWidgets.QSizePolicy.Minimum,
QtWidgets.QSizePolicy.MinimumExpanding)
self.layout = QtWidgets.QVBoxLayout(self)
margin = int(self.sizes.barHeight / 10)
self.layout.setContentsMargins(margin, margin, margin, margin)
self.layout.setSpacing(self.sizes.barHeight / 10)
self.layout.addWidget(self.valueSlider)
self.layout.addWidget(self.nameLabel)
self.layout.addWidget(self.unitLabel)
self.setMaximumWidth(self.sizes.barWidth * 5)
self.setMinimumWidth(self.sizes.barWidth * 5)
self.setMaximumHeight(self.sizes.readAttributeHeight)
self.setMinimumHeight(self.sizes.readAttributeHeight)
self.setSizePolicy(QtWidgets.QSizePolicy.Fixed,
QtWidgets.QSizePolicy.Fixed)
class QTangoAttributeSlider(QTangoAttributeBase):
def __init__(self,
sizes=None,
colors=None,
parent=None,
slider_style=2,
show_write_widget=False):
QTangoAttributeBase.__init__(self, sizes, colors, parent)
self.newValueSignal = None
self.nameLabel = None
self.startLabel = None
self.endLabel = None
self.unitLabel = None
self.valueLabel = None
self.writeValueInitialized = False
self.is_write_widget = show_write_widget
self.unit = None
self.prefixDict = {
'k': 1e3,
'M': 1e6,
'G': 1e9,
'T': 1e12,
'P': 1e15,
'm': 1e-3,
'u': 1e-6,
'n': 1e-9,
'p': 1e-12,
'f': 1e-15,
'c': 1e-2
}
self.prefix = None
self.prefixFactor = 1.0
# self.setup_horizontal(1, False)
self.setupLayout(slider_style, show_write_widget)
def setupLayout(self, slider_style=2, show_write_widget=False):
if slider_style in [1, 2, 3]:
self.setup_horizontal(slider_style, show_write_widget)
else:
self.setup_vertical(slider_style)
def setup_vertical(self, slider_style=4):
self.nameLabel = QTangoAttributeNameLabel(self.sizes, self.attrColors)
sizes_value = copy.copy(self.sizes)
sizes_value.barHeight *= 1.25
self.startLabel = QTangoStartLabel(self.sizes, self.attrColors)
self.endLabel = QTangoEndLabel(self.sizes, self.attrColors)
self.unitLabel = QTangoAttributeUnitLabel(self.sizes, self.attrColors)
self.valueLabel = QTangoReadAttributeLabel(self.sizes, self.attrColors)
self.valueSlider = QTangoVSliderBase2(self.sizes, self.attrColors)
self.writeLabel = QTangoStartLabel(self.sizes, self.attrColors)
self.writeLabel.current_attr_color = self.attrColors.backgroundColor
self.writeLabel.setupLayout()
# self.unitLabel = QTangoAttributeNameLabel(self.sizes, self.attrColors)
self.vSpacer = QtWidgets.QSpacerItem(
20, self.sizes.barHeight, QtWidgets.QSizePolicy.Minimum,
QtWidgets.QSizePolicy.MinimumExpanding)
self.layout = QtWidgets.QVBoxLayout(self)
margin = int(self.sizes.barHeight / 10)
self.layout.setContentsMargins(margin, margin, margin, margin)
self.layout.setSpacing(self.sizes.barHeight / 10)
self.layout.addWidget(self.valueSlider)
self.layout.addWidget(self.nameLabel)
self.layout.addWidget(self.unitLabel)
self.setMaximumWidth(self.sizes.barWidth * 5)
self.setMinimumWidth(self.sizes.barWidth * 5)
self.setMaximumHeight(self.sizes.readAttributeHeight)
self.setMinimumHeight(self.sizes.readAttributeHeight)
self.setSizePolicy(QtWidgets.QSizePolicy.Fixed,
QtWidgets.QSizePolicy.Fixed)
def setup_horizontal(self, slider_style=2, show_write_widget=False):
logger.debug("QTangoAttributeSlider.setupLayout")
self.startLabel = QTangoStartLabel(self.sizes, self.attrColors)
self.endLabel = QTangoEndLabel(self.sizes, self.attrColors)
self.nameLabel = QTangoAttributeNameLabel(self.sizes, self.attrColors)
self.unitLabel = QTangoAttributeUnitLabel(self.sizes, self.attrColors)
self.valueLabel = QTangoReadAttributeLabel(self.sizes, self.attrColors)
if show_write_widget is True:
logger.debug("Adding write widgets")
self.writeValueEdit = QTangoWriteAttributeLineEdit(
self.sizes, self.attrColors)
self.writeValueEdit.newValueSignal.connect(self.updateWriteValue)
self.writeLabel = QTangoStartLabel(self.sizes, self.attrColors)
self.writeLabel.current_attr_color = self.attrColors.backgroundColor
self.writeLabel.setupLayout()
self.newValueSignal = self.writeValueEdit.newValueSignal
# Select slider style:
if slider_style == 1:
self.valueSlider = QTangoHSliderBase(self.sizes, self.attrColors)
elif slider_style == 3:
self.valueSlider = QTangoHSliderBaseCompact(
self.sizes, self.attrColors)
else:
self.valueSlider = QTangoHSliderBase2(self.sizes, self.attrColors)
logger.debug("QTangoAttributeSlider.setupLayout widget")
self.layout = QtWidgets.QHBoxLayout(self)
self.layout.setContentsMargins(0, 0, 0, 0)
self.layout.setSpacing(self.sizes.barWidth / 3)
self.layoutGrid = QtWidgets.QGridLayout()
self.layoutGrid.setContentsMargins(0, 0, 0, 0)
self.layoutGrid.setHorizontalSpacing(self.sizes.barWidth / 4)
self.layoutGrid.setVerticalSpacing(0)
self.layoutGrid.addWidget(self.nameLabel, 0, 0)
self.layoutGrid.addWidget(self.unitLabel, 0, 1)
self.layoutGrid.addWidget(self.valueSlider, 1, 0, 1, 2)
self.layoutGrid.addWidget(self.valueLabel, 0, 3, QtCore.Qt.AlignRight)
if show_write_widget is True:
self.layoutGrid.addWidget(self.writeLabel, 1, 2)
self.layoutGrid.addWidget(self.writeValueEdit, 1, 3,
QtCore.Qt.AlignRight)
logger.debug("QTangoAttributeSlider.setupLayout: layoutGrid")
self.layout.addWidget(self.startLabel)
self.layout.addLayout(self.layoutGrid)
self.layout.addWidget(self.endLabel)
self.setMaximumWidth(self.sizes.readAttributeWidth * 1.2)
self.setMinimumWidth(self.sizes.readAttributeWidth * 1.2)
self.setMaximumHeight(self.sizes.barHeight * 2.2)
self.setMaximumHeight(self.sizes.barHeight * 3.0)
self.setSizePolicy(QtWidgets.QSizePolicy.Fixed,
QtWidgets.QSizePolicy.Fixed)
logger.debug("QTangoAttributeSlider.setupLayout: exit")
def attributeName(self):
return str(self.nameLabel.text())
def setAttributeName(self, a_name, a_unit=None):
self.nameLabel.setText(a_name)
if a_unit is not None:
self.setUnit(a_unit)
logger.info("Setting name label to {0}".format(self.nameLabel.text()))
self.update()
def setUnit(self, unit):
self.unit = codecs.raw_unicode_escape_decode(unit)[0]
if self.unit is not None:
if self.prefix is not None:
unit_str = "{0}{1}".format(self.prefix, self.unit)
else:
unit_str = self.unit
logger.info("Setting unit {0}".format(unit_str))
self.unitLabel.setText(unit_str)
try:
self.valueSlider.setUnit(unit_str)
except AttributeError:
# Slider had no unit
pass
def setPrefix(self, prefix):
try:
self.prefixFactor = self.prefixDict[prefix]
self.prefix = prefix
self.valueLabel.setPrefix(prefix)
self.valueSlider.setPrefix(prefix)
self.setUnit(self.unit)
except KeyError:
self.prefix = None
self.prefixFactor = 1.0
def setAttributeValue(self, data):
if type(data) == pt.DeviceAttribute:
# logger.debug("QTangoAttributeSlider::setAttributeValue: quality {0}".format(data.quality))
self.startLabel.setQuality(data.quality)
self.endLabel.setQuality(data.quality)
self.nameLabel.setQuality(data.quality)
self.unitLabel.setQuality(data.quality)
if data.value is not None:
self.valueLabel.setValue(data)
# logger.debug("QTangoAttributeSlider::setAttributeValue: setValue slider {0}".format(data.value))
self.valueSlider.setValue(data)
if self.is_write_widget is True:
if self.writeValueInitialized is False:
logger.info(
"QTangoAttributeSlider::setAttributeValue: Initializing write value"
)
self.writeValueInitialized = True
self.setAttributeWriteValue(data.w_value)
if data.w_value != self.writeValueEdit.value():
if self.writeLabel.current_attr_color != self.attrColors.secondaryColor0:
self.writeLabel.current_attr_color = self.attrColors.secondaryColor0
self.writeLabel.setupLayout()
else:
if self.writeLabel.current_attr_color != self.attrColors.backgroundColor:
self.writeLabel.current_attr_color = self.attrColors.backgroundColor
self.writeLabel.setupLayout()
else:
self.valueLabel.setValue(data)
self.valueSlider.setValue(data)
self.update()
def setAttributeWriteValue(self, value):
if self.is_write_widget is True:
self.writeValueEdit.setValue(value)
self.valueSlider.setWriteValue(value)
self.update()
def setAttributeWarningLimits(self, limits):
self.valueSlider.setWarningLimits(limits)
def setSliderLimits(self, min_limit, max_limit):
self.valueSlider.setSliderLimits(min_limit, max_limit)
def updateWriteValue(self):
logger.debug("In QTangoAttributeSlider.updateWriteValue: "
"updating slider to {0}".format(
self.writeValueEdit.value()))
self.valueSlider.setWriteValue(self.writeValueEdit.value())
self.update()
def getWriteValue(self):
retval = None
if self.is_write_widget:
retval = self.writeValueEdit.value()
return retval
def configureAttribute(self, attr_info):
logger.debug("Configuring attribute {0}".format(attr_info.name))
QTangoAttributeBase.configureAttribute(self, attr_info)
try:
min_warning = float(self.attrInfo.alarms.min_warning)
except ValueError:
min_warning = -np.inf
try:
max_warning = float(self.attrInfo.alarms.max_warning)
except ValueError:
max_warning = np.inf
logger.debug("min_warning {0}, max_warning {1}".format(
min_warning, max_warning))
self.setAttributeWarningLimits((min_warning, max_warning))
logger.debug("unit {0}".format(self.attrInfo.unit))
self.setUnit(self.attrInfo.unit)
self.valueLabel.data_format = attr_info.format
if self.is_write_widget is True:
self.writeValueEdit.dataFormat = attr_info.format
class QTangoWriteAttributeDouble(QTangoAttributeBase):
def __init__(self, sizes=None, colors=None, precision=4, parent=None):
QTangoAttributeBase.__init__(self, sizes, colors, parent)
self.writeValueInitialized = False
self.unit = None
self.precision = precision
self.prefix = None
self.setupLayout()
def setupLayout(self):
self.startLabel = QTangoStartLabel(self.sizes, self.attrColors)
self.endLabel = QTangoEndLabel(self.sizes, self.attrColors)
self.nameLabel = QTangoAttributeNameLabel(self.sizes, self.attrColors)
self.nameLabel.setSizePolicy(QtWidgets.QSizePolicy.Expanding,
QtWidgets.QSizePolicy.Minimum)
self.unitLabel = QTangoAttributeUnitLabel(self.sizes, self.attrColors)
self.valueSpinbox = QTangoReadAttributeLabel(self.sizes,
self.attrColors)
self.writeValueLineEdit = QTangoWriteAttributeLineEdit(
self.sizes, self.attrColors)
self.writeValueLineEdit.setLayoutDirection(QtCore.Qt.RightToLeft)
self.writeLabel = QTangoStartLabel(self.sizes, self.attrColors)
self.writeLabel.current_attr_color = self.attrColors.backgroundColor
self.writeLabel.setupLayout()
layout = QtWidgets.QHBoxLayout(self)
margin = int(self.sizes.barHeight / 10)
layout.setContentsMargins(margin, margin, margin, margin)
layout_grid = QtWidgets.QGridLayout()
margin = int(self.sizes.barHeight / 10)
layout_grid.setContentsMargins(margin, margin, margin, margin)
layout_grid.addWidget(self.nameLabel, 0, 0)
layout_grid.addWidget(self.valueSpinbox, 0, 2)
layout_grid.addWidget(self.unitLabel, 0, 3)
layout_grid.addWidget(self.writeLabel, 1, 1)
layout_grid.addWidget(self.writeValueLineEdit, 1, 2)
layout.addWidget(self.startLabel)
layout.addLayout(layout_grid)
layout.addWidget(self.endLabel)
self.setMaximumWidth(self.sizes.readAttributeWidth)
self.setMinimumWidth(self.sizes.readAttributeWidth)
self.setSizePolicy(QtWidgets.QSizePolicy.Minimum,
QtWidgets.QSizePolicy.Minimum)
def attributeName(self):
return str(self.nameLabel.text())
# @QtCore.pyqtSignature('setAttributeName(QString)')
def setAttributeName(self, a_name, a_unit=None):
self.nameLabel.setText(a_name)
if a_unit is not None:
self.setUnit(a_unit)
self.update()
def setUnit(self, unit):
self.unit = unit
if self.unit is not None:
unit_str = self.unit
if self.prefix is not None:
unit_str = ''.join((self.prefix, unit_str))
self.unitLabel.setText(unit_str)
def setAttributeValue(self, value):
if type(value) == pt.DeviceAttribute:
if value.value is not None:
if self.writeValueInitialized is False:
logger.debug('Initializing write value')
self.writeValueInitialized = True
self.setAttributeWriteValue(value.w_value)
if value.w_value != self.writeValueLineEdit.value():
if self.writeLabel.current_attr_color != self.attrColors.secondaryColor0:
self.writeLabel.current_attr_color = self.attrColors.secondaryColor0
self.writeLabel.setupLayout()
else:
if self.writeLabel.current_attr_color != self.attrColors.backgroundColor:
self.writeLabel.current_attr_color = self.attrColors.backgroundColor
self.writeLabel.setupLayout()
self.startLabel.setQuality(value.quality)
self.endLabel.setQuality(value.quality)
self.unitLabel.setQuality(value.quality)
self.valueSpinbox.setQuality(value.quality)
self.nameLabel.setQuality(value.quality)
val = value.value
else:
val = value
self.valueSpinbox.setValue(val)
self.update()
def setAttributeWriteValue(self, value):
self.writeValueLineEdit.setValue(value)
self.update()
def getWriteValue(self):
return self.writeValueLineEdit.value()
class QTangoReadAttributeDouble(QTangoAttributeBase):
def __init__(self, sizes=None, colors=None, parent=None):
QTangoAttributeBase.__init__(self, sizes, colors, parent)
self.unit = None
self.prefixDict = {
'k': 1e-3,
'M': 1e-6,
'G': 1e-9,
'T': 1e-12,
'P': 1e-15,
'm': 1e3,
'u': 1e6,
'n': 1e9,
'p': 1e12,
'f': 1e15,
'c': 1e2
}
self.prefix = None
self.prefixFactor = 1.0
self.setupLayout()
def setupLayout(self):
self.startLabel = QTangoStartLabel(self.sizes, self.attrColors)
self.endLabel = QTangoEndLabel(self.sizes, self.attrColors)
self.nameLabel = QTangoAttributeNameLabel(self.sizes, self.attrColors)
self.nameLabel.setSizePolicy(QtWidgets.QSizePolicy.Expanding,
QtWidgets.QSizePolicy.Minimum)
self.unitLabel = QTangoAttributeUnitLabel(self.sizes, self.attrColors)
self.valueSpinbox = QTangoReadAttributeLabel(self.sizes,
self.attrColors)
self.unitLabel.setAlignment(QtCore.Qt.AlignLeft
| QtCore.Qt.AlignBottom)
layout = QtWidgets.QHBoxLayout(self)
margin = int(self.sizes.barHeight / 10)
layout.setContentsMargins(margin, margin, margin, margin)
layout.addWidget(self.startLabel)
layout.addWidget(self.nameLabel)
layout.addWidget(self.valueSpinbox)
layout.addWidget(self.unitLabel)
layout.addWidget(self.endLabel)
self.setMaximumWidth(self.sizes.readAttributeWidth)
self.setMinimumWidth(self.sizes.readAttributeWidth)
self.setSizePolicy(QtWidgets.QSizePolicy.Minimum,
QtWidgets.QSizePolicy.Minimum)
def attributeName(self):
return str(self.nameLabel.text())
# @QtCore.pyqtSignature('setAttributeName(QString)')
def setAttributeName(self, a_name, a_unit=None):
self.nameLabel.setText(a_name)
if a_unit is not None:
self.setUnit(a_unit)
self.update()
def setAttributeValue(self, value):
if type(value) == pt.DeviceAttribute:
self.startLabel.setQuality(value.quality)
self.endLabel.setQuality(value.quality)
self.unitLabel.setQuality(value.quality)
self.valueSpinbox.setQuality(value.quality)
self.nameLabel.setQuality(value.quality)
val = value.value
else:
val = value
self.valueSpinbox.setValue(val * self.prefixFactor)
self.update()
def setUnit(self, unit):
self.unit = unit
if self.unit is not None:
unit_str = self.unit
if self.prefix is not None:
unit_str = ''.join((self.prefix, unit_str))
self.unitLabel.setText(unit_str)
def setPrefix(self, prefix):
try:
self.prefixFactor = self.prefixDict[prefix]
self.prefix = prefix
self.setUnit(self.unit)
except KeyError:
self.prefix = None
self.prefixFactor = 1.0