def __init__(self, parent = None):
QtGui.QWidget.__init__(self, parent)
if parent == None:
self.parent = self
self.parent.lastUsedDirectory = os.path.expanduser('~')
else:
self.parent = parent
self.ui = Ui_Form()
self.ui.setupUi(self)
self.setWindowTitle("RadTrack FEL Calculator")
# Renames
self.ui.charge.setObjectName("Charge")
self.ui.charge.unit = 'C'
self.ui.charge.dictName = 'charge'
self.ui.slicemit.setObjectName("Normalized slice emittance")
self.ui.slicemit.unit = 'm*rad'
self.ui.slicemit.dictName = 'slicemit'
self.ui.ebeamenergy.setObjectName("Beam energy")
self.ui.ebeamenergy.unit = 'eV'
self.ui.ebeamenergy.dictName = 'ebeamenergy'
self.ui.energyspread.setObjectName("Sliced energy spread")
self.ui.energyspread.unit = ''
self.ui.energyspread.dictName = 'energyspread'
self.ui.bunchlen.setObjectName("Bunch length (time)")
self.ui.bunchlen.unit = 's'
self.ui.bunchlen.dictName = 'bunchLengthFWHM_sec'
self.ui.reprate.setObjectName("Repetition rate")
self.ui.reprate.unit = 'Hz'
self.ui.reprate.dictName = 'reprate'
self.ui.uperiod.setObjectName("Undulator period")
self.ui.uperiod.unit = 'm'
self.ui.uperiod.dictName = 'undulatorPeriod'
self.ui.ufield.setObjectName("Undulator field")
self.ui.ufield.unit = 'T'
self.ui.ufield.dictName = 'ufield'
self.ui.beta.setObjectName("Average beta function")
self.ui.beta.unit = 'm'
self.ui.beta.dictName = 'beta'
self.ui.bunlen.setObjectName("Bunch length (distance)")
self.ui.bunlen.unit = 'm'
self.ui.bunlen.dictName = 'bunchLengthFWHM_m'
self.ui.gamma.setObjectName("Relativistic gamma")
self.ui.gamma.unit = ''
self.ui.gamma.dictName = 'gamma'
self.ui.edensity.setObjectName("Peak electron density")
self.ui.edensity.unit = 'm^-3'
self.ui.edensity.dictName = 'peakElectronDensity'
self.ui.geoemit.setObjectName("Geometric emittance")
self.ui.geoemit.unit = 'm*rad'
self.ui.geoemit.dictName = 'geometricEmittance'
self.ui.peakamp.setObjectName("Peak current")
self.ui.peakamp.unit = 'A'
self.ui.peakamp.dictName = 'peakamp'
self.ui.rmssize.setObjectName("RMS beam size (average)")
self.ui.rmssize.unit = 'm'
self.ui.rmssize.dictName = 'rmsBeamSize'
self.ui.uparam.setObjectName("Undulator parameter")
self.ui.uparam.unit = ''
self.ui.uparam.dictName = 'undulatorParameter'
self.ui.uwave.setObjectName("Undulator wavenumber")
self.ui.uwave.unit = 'm^-1'
self.ui.uwave.dictName = 'undulatorWaveNumber'
self.ui.averagepower.setObjectName("Average power")
self.ui.averagepower.unit = 'W'
self.ui.averagepower.dictName = 'averagePower'
self.ui.radiatedwavelength.setObjectName("Radiated wavelength")
self.ui.radiatedwavelength.unit = 'm'
self.ui.radiatedwavelength.dictName = 'radiatedwavelength'
self.ui.saturation.setObjectName("Saturation length")
self.ui.saturation.unit = 'm'
self.ui.saturation.dictName = 'saturationLength'
self.ui.raleigh.setObjectName("Rayleigh range")
self.ui.raleigh.unit = 'm'
self.ui.raleigh.dictName = 'RayleighRange'
self.ui.photonemit.setObjectName("Photon emittance")
self.ui.photonemit.unit = 'm*rad'
self.ui.photonemit.dictName = 'photonEmittance'
self.ui.fel_1d.setObjectName("1D FEL parameter")
self.ui.fel_1d.unit = ''
self.ui.fel_1d.dictName = 'oneDFELParameter'
self.ui.gain_1d.setObjectName("1D gain length")
self.ui.gain_1d.unit = ''
self.ui.gain_1d.dictName = 'oneDGainLength'
self.ui.dfactor.setObjectName("Diffraction factor")
self.ui.dfactor.unit = ''
self.ui.dfactor.dictName = 'diffractionFactor'
self.ui.efactor.setObjectName("Emittance factor")
self.ui.efactor.unit = ''
self.ui.efactor.dictName = 'emitanceFactor'
self.ui.espreadfactor.setObjectName("Energy spread factor")
self.ui.espreadfactor.unit = ''
self.ui.espreadfactor.dictName = 'energySpreadFactor'
self.ui.threedfel.setObjectName("3D FEL parameter")
self.ui.threedfel.unit = ''
self.ui.threedfel.dictName = 'threeDFELParameter'
self.ui.gain_3d.setObjectName("3D gain length")
self.ui.gain_3d.unit = 'm'
self.ui.gain_3d.dictName = 'threeDGainLength'
self.ui.total.setObjectName("3D effect total")
self.ui.total.unit = ''
self.ui.total.dictName = 'threeDEffectTotal'
self.ui.sasepower.setObjectName("SASE power at saturation")
self.ui.sasepower.unit = 'W'
self.ui.sasepower.dictName = 'SASEpowerAtSaturation'
self.ui.saseenergy.setObjectName("SASE pulsed energy")
self.ui.saseenergy.unit = 'J'
self.ui.saseenergy.dictName = 'pulsedSASEenergy'
self.ui.x.setObjectName("X Axis")
self.ui.y.setObjectName("Y Axis")
self.ui.z.setObjectName("Z Axis")
self.ui.xmin.setObjectName("Min X Value")
self.ui.xmax.setObjectName("Max X Value")
self.ui.ymin.setObjectName("Min Y Value")
self.ui.ymax.setObjectName("Max Y Value")
self.textBox = dict()
self.valueFromTextBox = dict()
self.textBoxFromDictName = dict()
self.userInputBoxes = []
maxLength = 0
for thing in [getattr(self.ui, name) for name in sorted(dir(self.ui))]:
if not hasattr(thing, 'unit'):
continue
length = QtGui.QFontMetrics(self.ui.x.font()).boundingRect(thing.objectName()).width()
if length > maxLength:
maxLength = length
self.textBox[thing.objectName()] = thing
self.textBoxFromDictName[thing.dictName] = thing
if hasattr(thing, 'isReadOnly'):
if thing.isReadOnly():
if thing.objectName().startswith("Bunch length"):
thing.setToolTip("FWHM")
else:
thing.setToolTip('')
self.ui.z.addItem(thing.objectName())
self.ui.target.addItem(thing.objectName())
else:
self.ui.x.addItem(thing.objectName())
self.ui.y.addItem(thing.objectName())
self.ui.vary.addItem(thing.objectName())
thing.textEdited.connect(self.calculateAll)
thing.setToolTip(thing.unit)
self.userInputBoxes.append(thing)
scrollBarWidth = self.style().pixelMetric(QtGui.QStyle.PM_ScrollBarExtent)
extraSpace = 10
comboWidth = maxLength + scrollBarWidth + extraSpace
comboHeight = 22
for thing in [self.ui.x, self.ui.y, self.ui.z]:
self.textBox[thing.objectName()] = thing
thing.setGeometry(thing.x(), thing.y(), comboWidth, comboHeight)
thing.setCurrentIndex(-1)
for thing in [self.ui.xmin, self.ui.xmax, self.ui.ymin, self.ui.ymax]:
self.textBox[thing.objectName()] = thing
# Connections
self.ui.plotButton.clicked.connect(self.plot)
self.ui.solve.clicked.connect(self.goalSeek)
# Default/example values
self.ui.charge.setText('300 pC')
self.ui.slicemit.setText('1 mm*mrad')
self.ui.ebeamenergy.setText('600 MeV')
self.ui.energyspread.setText('.01%')
self.ui.peakamp.setText('200 A')
self.ui.reprate.setText('150 kHz')
self.ui.radiatedwavelength.setText('13.5 nm')
self.ui.ufield.setText('0.9 T')
self.ui.beta.setText('1 m')
self.calculateAll()
for box in self.textBox.values():
try:
box.setCursorPosition(0)
except AttributeError:
pass
self.container = self
class RbFEL(QtGui.QWidget):
acceptsFileTypes = ['fel']
defaultTitle = 'FEL Calculator'
task = 'Analyze FEL parameters'
category = 'tools'
def __init__(self, parent = None):
QtGui.QWidget.__init__(self, parent)
if parent == None:
self.parent = self
self.parent.lastUsedDirectory = os.path.expanduser('~')
else:
self.parent = parent
self.ui = Ui_Form()
self.ui.setupUi(self)
self.setWindowTitle("RadTrack FEL Calculator")
# Renames
self.ui.charge.setObjectName("Charge")
self.ui.charge.unit = 'C'
self.ui.charge.dictName = 'charge'
self.ui.slicemit.setObjectName("Normalized slice emittance")
self.ui.slicemit.unit = 'm*rad'
self.ui.slicemit.dictName = 'slicemit'
self.ui.ebeamenergy.setObjectName("Beam energy")
self.ui.ebeamenergy.unit = 'eV'
self.ui.ebeamenergy.dictName = 'ebeamenergy'
self.ui.energyspread.setObjectName("Sliced energy spread")
self.ui.energyspread.unit = ''
self.ui.energyspread.dictName = 'energyspread'
self.ui.bunchlen.setObjectName("Bunch length (time)")
self.ui.bunchlen.unit = 's'
self.ui.bunchlen.dictName = 'bunchLengthFWHM_sec'
self.ui.reprate.setObjectName("Repetition rate")
self.ui.reprate.unit = 'Hz'
self.ui.reprate.dictName = 'reprate'
self.ui.uperiod.setObjectName("Undulator period")
self.ui.uperiod.unit = 'm'
self.ui.uperiod.dictName = 'undulatorPeriod'
self.ui.ufield.setObjectName("Undulator field")
self.ui.ufield.unit = 'T'
self.ui.ufield.dictName = 'ufield'
self.ui.beta.setObjectName("Average beta function")
self.ui.beta.unit = 'm'
self.ui.beta.dictName = 'beta'
self.ui.bunlen.setObjectName("Bunch length (distance)")
self.ui.bunlen.unit = 'm'
self.ui.bunlen.dictName = 'bunchLengthFWHM_m'
self.ui.gamma.setObjectName("Relativistic gamma")
self.ui.gamma.unit = ''
self.ui.gamma.dictName = 'gamma'
self.ui.edensity.setObjectName("Peak electron density")
self.ui.edensity.unit = 'm^-3'
self.ui.edensity.dictName = 'peakElectronDensity'
self.ui.geoemit.setObjectName("Geometric emittance")
self.ui.geoemit.unit = 'm*rad'
self.ui.geoemit.dictName = 'geometricEmittance'
self.ui.peakamp.setObjectName("Peak current")
self.ui.peakamp.unit = 'A'
self.ui.peakamp.dictName = 'peakamp'
self.ui.rmssize.setObjectName("RMS beam size (average)")
self.ui.rmssize.unit = 'm'
self.ui.rmssize.dictName = 'rmsBeamSize'
self.ui.uparam.setObjectName("Undulator parameter")
self.ui.uparam.unit = ''
self.ui.uparam.dictName = 'undulatorParameter'
self.ui.uwave.setObjectName("Undulator wavenumber")
self.ui.uwave.unit = 'm^-1'
self.ui.uwave.dictName = 'undulatorWaveNumber'
self.ui.averagepower.setObjectName("Average power")
self.ui.averagepower.unit = 'W'
self.ui.averagepower.dictName = 'averagePower'
self.ui.radiatedwavelength.setObjectName("Radiated wavelength")
self.ui.radiatedwavelength.unit = 'm'
self.ui.radiatedwavelength.dictName = 'radiatedwavelength'
self.ui.saturation.setObjectName("Saturation length")
self.ui.saturation.unit = 'm'
self.ui.saturation.dictName = 'saturationLength'
self.ui.raleigh.setObjectName("Rayleigh range")
self.ui.raleigh.unit = 'm'
self.ui.raleigh.dictName = 'RayleighRange'
self.ui.photonemit.setObjectName("Photon emittance")
self.ui.photonemit.unit = 'm*rad'
self.ui.photonemit.dictName = 'photonEmittance'
self.ui.fel_1d.setObjectName("1D FEL parameter")
self.ui.fel_1d.unit = ''
self.ui.fel_1d.dictName = 'oneDFELParameter'
self.ui.gain_1d.setObjectName("1D gain length")
self.ui.gain_1d.unit = ''
self.ui.gain_1d.dictName = 'oneDGainLength'
self.ui.dfactor.setObjectName("Diffraction factor")
self.ui.dfactor.unit = ''
self.ui.dfactor.dictName = 'diffractionFactor'
self.ui.efactor.setObjectName("Emittance factor")
self.ui.efactor.unit = ''
self.ui.efactor.dictName = 'emitanceFactor'
self.ui.espreadfactor.setObjectName("Energy spread factor")
self.ui.espreadfactor.unit = ''
self.ui.espreadfactor.dictName = 'energySpreadFactor'
self.ui.threedfel.setObjectName("3D FEL parameter")
self.ui.threedfel.unit = ''
self.ui.threedfel.dictName = 'threeDFELParameter'
self.ui.gain_3d.setObjectName("3D gain length")
self.ui.gain_3d.unit = 'm'
self.ui.gain_3d.dictName = 'threeDGainLength'
self.ui.total.setObjectName("3D effect total")
self.ui.total.unit = ''
self.ui.total.dictName = 'threeDEffectTotal'
self.ui.sasepower.setObjectName("SASE power at saturation")
self.ui.sasepower.unit = 'W'
self.ui.sasepower.dictName = 'SASEpowerAtSaturation'
self.ui.saseenergy.setObjectName("SASE pulsed energy")
self.ui.saseenergy.unit = 'J'
self.ui.saseenergy.dictName = 'pulsedSASEenergy'
self.ui.x.setObjectName("X Axis")
self.ui.y.setObjectName("Y Axis")
self.ui.z.setObjectName("Z Axis")
self.ui.xmin.setObjectName("Min X Value")
self.ui.xmax.setObjectName("Max X Value")
self.ui.ymin.setObjectName("Min Y Value")
self.ui.ymax.setObjectName("Max Y Value")
self.textBox = dict()
self.valueFromTextBox = dict()
self.textBoxFromDictName = dict()
self.userInputBoxes = []
maxLength = 0
for thing in [getattr(self.ui, name) for name in sorted(dir(self.ui))]:
if not hasattr(thing, 'unit'):
continue
length = QtGui.QFontMetrics(self.ui.x.font()).boundingRect(thing.objectName()).width()
if length > maxLength:
maxLength = length
self.textBox[thing.objectName()] = thing
self.textBoxFromDictName[thing.dictName] = thing
if hasattr(thing, 'isReadOnly'):
if thing.isReadOnly():
if thing.objectName().startswith("Bunch length"):
thing.setToolTip("FWHM")
else:
thing.setToolTip('')
self.ui.z.addItem(thing.objectName())
self.ui.target.addItem(thing.objectName())
else:
self.ui.x.addItem(thing.objectName())
self.ui.y.addItem(thing.objectName())
self.ui.vary.addItem(thing.objectName())
thing.textEdited.connect(self.calculateAll)
thing.setToolTip(thing.unit)
self.userInputBoxes.append(thing)
scrollBarWidth = self.style().pixelMetric(QtGui.QStyle.PM_ScrollBarExtent)
extraSpace = 10
comboWidth = maxLength + scrollBarWidth + extraSpace
comboHeight = 22
for thing in [self.ui.x, self.ui.y, self.ui.z]:
self.textBox[thing.objectName()] = thing
thing.setGeometry(thing.x(), thing.y(), comboWidth, comboHeight)
thing.setCurrentIndex(-1)
for thing in [self.ui.xmin, self.ui.xmax, self.ui.ymin, self.ui.ymax]:
self.textBox[thing.objectName()] = thing
# Connections
self.ui.plotButton.clicked.connect(self.plot)
self.ui.solve.clicked.connect(self.goalSeek)
# Default/example values
self.ui.charge.setText('300 pC')
self.ui.slicemit.setText('1 mm*mrad')
self.ui.ebeamenergy.setText('600 MeV')
self.ui.energyspread.setText('.01%')
self.ui.peakamp.setText('200 A')
self.ui.reprate.setText('150 kHz')
self.ui.radiatedwavelength.setText('13.5 nm')
self.ui.ufield.setText('0.9 T')
self.ui.beta.setText('1 m')
self.calculateAll()
for box in self.textBox.values():
try:
box.setCursorPosition(0)
except AttributeError:
pass
self.container = self
def calculateAll(self):
self.updateBoxes(calculate(self.userInputDict()))
def updateBoxes(self, boxDict):
for name in boxDict:
self.setResultBox(self.textBoxFromDictName[name], boxDict[name])
def userInputDict(self):
userDict = dict()
for box in self.userInputBoxes:
userDict[box.dictName] = self.getValue(box)
return userDict
def unsetValue(self, textBox):
textBox.clear()
if textBox in self.valueFromTextBox:
del self.valueFromTextBox[textBox]
def getValue(self, textBox):
try:
self.valueFromTextBox[textBox] = util.convertUnitsStringToNumber(textBox.text(), textBox.unit)
return self.valueFromTextBox[textBox]
except ValueError:
if textBox in self.valueFromTextBox:
del self.valueFromTextBox[textBox]
def setResultBox(self, textBox, value):
if value is not None:
self.valueFromTextBox[textBox] = value
textBox.setText(util.displayWithUnitsNumber(util.roundSigFig(value, 5), textBox.unit))
textBox.setCursorPosition(0)
else:
self.unsetValue(textBox)
def plot(self):
try:
xTextBox = self.textBox[self.ui.x.currentText()]
xOrginalValue = xTextBox.text()
yTextBox = self.textBox[self.ui.y.currentText()]
yOrginalValue = yTextBox.text()
zTextBox = self.textBox[self.ui.z.currentText()]
except KeyError:
return # Combo box choice was left blank
try:
xmin = util.convertUnitsStringToNumber(self.ui.xmin.text(), xTextBox.unit)
xmax = util.convertUnitsStringToNumber(self.ui.xmax.text(), xTextBox.unit)
if xmin > xmax:
xmin, xmax = xmax, xmin
ymin = util.convertUnitsStringToNumber(self.ui.ymin.text(), yTextBox.unit)
ymax = util.convertUnitsStringToNumber(self.ui.ymax.text(), yTextBox.unit)
if ymin > ymax:
ymin, ymax = ymax, ymin
except ValueError: # text box left blank
return
numPoints = 32 # per variable, 32*32 = 1,024 points total
xRange = numpy.linspace(xmin, xmax, numPoints)
_, xAxisLabel, xRangeUnits = rangeUnits(xTextBox, xRange)
yRange = numpy.linspace(ymin, ymax, numPoints)
_, yAxisLabel, yRangeUnits = rangeUnits(yTextBox, yRange)
Z = numpy.zeros((numPoints, numPoints))
plotProgress = QtGui.QProgressDialog("Plotting ...", None, 0, (numPoints**2)-1)
plotProgress.setMinimumDuration(0)
try:
for j, x in enumerate(xRange):
for i, y in enumerate(yRange):
plotProgress.setValue(plotProgress.value()+1)
xTextBox.setText(str(x))
yTextBox.setText(str(y))
results = calculate(self.userInputDict())
try:
Z[i,j] = results[zTextBox.dictName]
except KeyError:
Z[i,j] = float('nan')
zUnit, zAxisLabel, _ = rangeUnits(zTextBox, Z.flat)
for z in numpy.nditer(Z, op_flags=['readwrite']):
z[...] = util.convertUnitsNumber(z, zTextBox.unit, zUnit)
# Plotting
self.ui.plotWidget.canvas.fig.clear()
self.ui.plotWidget.canvas.ax = self.ui.plotWidget.canvas.fig.add_subplot(111)
c = self.ui.plotWidget.canvas.ax.imshow(numpy.flipud(Z), cmap = 'hot',
extent = [min(xRangeUnits), max(xRangeUnits),
min(yRangeUnits), max(yRangeUnits)],
aspect = 'auto')
self.ui.plotWidget.canvas.ax.set_xlabel(xAxisLabel)
self.ui.plotWidget.canvas.ax.set_ylabel(yAxisLabel)
cb = self.ui.plotWidget.canvas.fig.colorbar(c)
cb.set_label(zAxisLabel)
self.ui.plotWidget.canvas.ax.set_xlim(min(xRangeUnits), max(xRangeUnits))
self.ui.plotWidget.canvas.ax.set_ylim(min(yRangeUnits), max(yRangeUnits))
self.ui.plotWidget.canvas.fig.tight_layout()
self.ui.plotWidget.canvas.draw()
finally:
# Restore text boxes to original state
xTextBox.setText(xOrginalValue)
xTextBox.setCursorPosition(0)
yTextBox.setText(yOrginalValue)
yTextBox.setCursorPosition(0)
self.calculateAll()
def goalSeek(self):
# Newton's method
variableTextBox = self.textBox[self.ui.vary.currentText()]
resultTextBox = self.textBox[self.ui.target.currentText()]
self.ui.solverResult.setText('Searching...')
maximumIterations = 1000
success = False
dxFactor = 1e-9
try:
x0 = self.valueFromTextBox[variableTextBox]
except KeyError:
x0 = dxFactor
bestX = x0
try:
goal = util.convertUnitsStringToNumber(self.ui.lineEdit.text(), resultTextBox.unit)
y0 = self.calculateValue(variableTextBox, x0, resultTextBox)
bestError = abs((y0-goal)/goal)
for i in range(maximumIterations):
try:
y0 = self.calculateValue(variableTextBox, x0, resultTextBox)
error = abs((y0-goal)/goal)
if error < 1e-6:
success = True
break
else:
if error < bestError:
bestX = x0
bestError = error
dx = abs(dxFactor*x0)
slope = self.calculateSlope(variableTextBox, x0, dx, resultTextBox)
x0 = x0 - (y0-goal)/slope
if x0 < 0:
x0 = dx
except (ZeroDivisionError, KeyError, OverflowError):
dxFactor = 2*dxFactor
x0 = x0+dx
except ValueError: # "goal" is blank -> find extrema by Newton's method on slope
dx = abs(dxFactor*x0)
bestSlope = abs(self.calculateSlope(variableTextBox, x0, dx, resultTextBox))
for i in range(maximumIterations):
try:
dx = abs(dxFactor*x0)
slope = self.calculateSlope(variableTextBox, x0, dx, resultTextBox)
if abs(slope) < 1e-6:
success = True
break
else:
if slope < bestSlope:
bestX = x0
bestSlope = slope
secondDerivitive = self.calculateSecondDerivitive(variableTextBox, x0, dx, resultTextBox)
x0 = x0 - (slope)/secondDerivitive
if x0 < 0:
x0 = dx
except (ZeroDivisionError, KeyError, OverflowError):
dxFactor = 2*dxFactor
x0 = x0+dx
if success:
value = x0
self.ui.solverResult.setText('Success.')
else:
value = bestX
self.ui.solverResult.setText('Failed. Could not find a solution.')
variableTextBox.setText(util.displayWithUnitsNumber(util.roundSigFig(value, 5), variableTextBox.unit))
variableTextBox.setCursorPosition(0)
self.calculateAll()
def calculateValue(self, inputBox, inputValue, resultBox):
inputBox.setText(str(inputValue))
result = calculate(self.userInputDict())
return result[resultBox.dictName]
def calculateSlope(self, inputBox, inputValue, inputStep, resultBox):
return (self.calculateValue(inputBox, inputValue + inputStep, resultBox)
- self.calculateValue(inputBox, inputValue, resultBox))/inputStep
def calculateSecondDerivitive(self, inputBox, inputValue, inputStep, resultBox):
return (self.calculateSlope(inputBox, inputValue + inputStep, inputStep, resultBox) -
self.calculateSlope(inputBox, inputValue, inputStep, resultBox))/inputStep
def exportToFile(self, fileName = None):
if not fileName:
fileName = util.getSaveFileName(self)
if not fileName:
return
fileLines = []
for box in self.textBox.values():
try:
try:
_, unit = util.separateNumberUnit(box.text())
value = util.convertUnitsNumberToString(self.valueFromTextBox[box], box.unit, unit)
except (ValueError, KeyError):
value = box.text()
fileLines.append(box.objectName() + ':' + value) # text box
except AttributeError:
fileLines.append(box.objectName() + ':' + box.currentText()) # combo box
with open(fileName, 'w') as f:
f.write('\n'.join(sorted(fileLines)))
def importFile(self, fileName = None):
if not fileName:
fileName = QtGui.QFileDialog.getOpenFileName(self, 'Open file', self.parent.lastUsedDirectory,
util.fileTypeLists(self.acceptsFileTypes))
if not fileName:
return
self.parent.lastUsedDirectory = os.path.dirname(fileName)
with open(fileName, 'r') as f:
for line in f:
name, value = line.strip().split(':')
box = self.textBox[name]
try:
box.setText(value) # text box
except AttributeError:
box.setCurrentIndex(box.findText(value)) # combo box
self.calculateAll()
self.plot()