Esempio n. 1
0
class ColormapDialog(qt.QDialog):
    def __init__(self, parent=None, name="Colormap Dialog", slider=False):
        if QTVERSION < '4.0.0':
            qt.QDialog.__init__(self, parent, name)
            self.setCaption(name)
        else:
            qt.QDialog.__init__(self, parent)
            self.setWindowTitle(name)
        self.title = name

        self.colormapList = [
            "Greyscale", "Reverse Grey", "Temperature", "Red", "Green", "Blue",
            "Many"
        ]

        # default values
        self.dataMin = -10
        self.dataMax = 10
        self.minValue = 0
        self.maxValue = 1

        self.colormapIndex = 2
        self.colormapType = 0

        self.autoscale = False
        self.autoscale90 = False
        # main layout
        if QTVERSION < '4.0.0':
            vlayout = qt.QVBoxLayout(self, 0, -1, "Main ColormapDialog Layout")
        else:
            vlayout = qt.QVBoxLayout(self)
        vlayout.setMargin(10)
        vlayout.setSpacing(0)

        # layout 1 : -combo to choose colormap
        #            -autoscale button
        #            -autoscale 90% button
        hbox1 = qt.QWidget(self)
        hlayout1 = qt.QHBoxLayout(hbox1)
        vlayout.addWidget(hbox1)
        hlayout1.setMargin(0)
        hlayout1.setSpacing(10)

        # combo
        self.combo = qt.QComboBox(hbox1)
        for colormap in self.colormapList:
            if QTVERSION < '4.0.0':
                self.combo.insertItem(colormap)
            else:
                self.combo.addItem(colormap)
        self.connect(self.combo, qt.SIGNAL("activated(int)"),
                     self.colormapChange)
        hlayout1.addWidget(self.combo)

        # autoscale
        self.autoScaleButton = qt.QPushButton("Autoscale", hbox1)
        if QTVERSION < '4.0.0':
            self.autoScaleButton.setToggleButton(True)
        else:
            self.autoScaleButton.setCheckable(True)
        self.autoScaleButton.setAutoDefault(False)
        self.connect(self.autoScaleButton, qt.SIGNAL("toggled(bool)"),
                     self.autoscaleChange)
        hlayout1.addWidget(self.autoScaleButton)

        # autoscale 90%
        self.autoScale90Button = qt.QPushButton("Autoscale 90%", hbox1)
        if QTVERSION < '4.0.0':
            self.autoScale90Button.setToggleButton(True)
        else:
            self.autoScale90Button.setCheckable(True)
        self.autoScale90Button.setAutoDefault(False)

        self.connect(self.autoScale90Button, qt.SIGNAL("toggled(bool)"),
                     self.autoscale90Change)
        hlayout1.addWidget(self.autoScale90Button)

        # hlayout
        if QTVERSION > '4.0.0':
            hbox0 = qt.QWidget(self)
            self.__hbox0 = hbox0
            hlayout0 = qt.QHBoxLayout(hbox0)
            hlayout0.setMargin(0)
            hlayout0.setSpacing(0)
            vlayout.addWidget(hbox0)
            #hlayout0.addStretch(10)

            self.buttonGroup = qt.QButtonGroup()
            g1 = qt.QCheckBox(hbox0)
            g1.setText("Linear")
            g2 = qt.QCheckBox(hbox0)
            g2.setText("Logarithmic")
            g3 = qt.QCheckBox(hbox0)
            g3.setText("Gamma")
            self.buttonGroup.addButton(g1, 0)
            self.buttonGroup.addButton(g2, 1)
            self.buttonGroup.addButton(g3, 2)
            self.buttonGroup.setExclusive(True)
            if self.colormapType == 1:
                self.buttonGroup.button(1).setChecked(True)
            elif self.colormapType == 2:
                self.buttonGroup.button(2).setChecked(True)
            else:
                self.buttonGroup.button(0).setChecked(True)
            hlayout0.addWidget(g1)
            hlayout0.addWidget(g2)
            hlayout0.addWidget(g3)
            vlayout.addWidget(hbox0)
            self.connect(self.buttonGroup, qt.SIGNAL("buttonClicked(int)"),
                         self.buttonGroupChange)

        vlayout.addSpacing(20)

        hboxlimits = qt.QWidget(self)
        hboxlimitslayout = qt.QHBoxLayout(hboxlimits)
        hboxlimitslayout.setMargin(0)
        hboxlimitslayout.setSpacing(0)

        if slider:
            self.slider = DoubleSlider.DoubleSlider(hboxlimits, scale=False)
            hboxlimitslayout.addWidget(self.slider)
        else:
            self.slider = None

        vlayout.addWidget(hboxlimits)

        vboxlimits = qt.QWidget(hboxlimits)
        vboxlimitslayout = qt.QVBoxLayout(vboxlimits)
        vboxlimitslayout.setMargin(0)
        vboxlimitslayout.setSpacing(0)
        hboxlimitslayout.addWidget(vboxlimits)

        # hlayout 2 : - min label
        #             - min texte
        hbox2 = qt.QWidget(vboxlimits)
        self.__hbox2 = hbox2
        hlayout2 = qt.QHBoxLayout(hbox2)
        hlayout2.setMargin(0)
        hlayout2.setSpacing(0)
        #vlayout.addWidget(hbox2)
        vboxlimitslayout.addWidget(hbox2)
        hlayout2.addStretch(10)

        self.minLabel = qt.QLabel(hbox2)
        self.minLabel.setText("Minimum")
        hlayout2.addWidget(self.minLabel)

        hlayout2.addSpacing(5)
        hlayout2.addStretch(1)
        self.minText = MyQLineEdit(hbox2)
        self.minText.setFixedWidth(150)
        self.minText.setAlignment(qt.Qt.AlignRight)
        self.connect(self.minText, qt.SIGNAL("returnPressed()"),
                     self.minTextChanged)
        hlayout2.addWidget(self.minText)

        # hlayout 3 : - min label
        #             - min text
        hbox3 = qt.QWidget(vboxlimits)
        self.__hbox3 = hbox3
        hlayout3 = qt.QHBoxLayout(hbox3)
        hlayout3.setMargin(0)
        hlayout3.setSpacing(0)
        #vlayout.addWidget(hbox3)
        vboxlimitslayout.addWidget(hbox3)

        hlayout3.addStretch(10)
        self.maxLabel = qt.QLabel(hbox3)
        self.maxLabel.setText("Maximum")
        hlayout3.addWidget(self.maxLabel)

        hlayout3.addSpacing(5)
        hlayout3.addStretch(1)

        self.maxText = MyQLineEdit(hbox3)
        self.maxText.setFixedWidth(150)
        self.maxText.setAlignment(qt.Qt.AlignRight)

        self.connect(self.maxText, qt.SIGNAL("returnPressed()"),
                     self.maxTextChanged)
        hlayout3.addWidget(self.maxText)

        # Graph widget for color curve...
        self.c = QtBlissGraph(self)
        self.c.xlabel("Data Values")
        self.c.enableZoom(False)
        self.c.setCanvasBackground(qt.Qt.white)
        self.c.canvas().setMouseTracking(1)

        self.c.enableAxis(Qwt5.QwtPlot.xBottom)

        self.marge = (abs(self.dataMax) + abs(self.dataMin)) / 6.0
        self.minmd = self.dataMin - self.marge
        self.maxpd = self.dataMax + self.marge

        self.c.setx1axislimits(self.minmd, self.maxpd)
        self.c.sety1axislimits(-11.5, 11.5)
        self.c.picker.setSelectionFlags(Qwt5.QwtPicker.NoSelection)

        x = [self.minmd, self.dataMin, self.dataMax, self.maxpd]
        y = [-10, -10, 10, 10]
        self.c.newCurve("ConstrainedCurve", x, y)
        self.markers = []
        self.__x = x
        self.__y = y
        for i in range(4):
            index = self.c.insertx1marker(x[i], y[i], noline=True)
            marker = self.c.markersdict[index]['marker']
            if i in [1, 2]:
                self.c.setmarkerfollowmouse(index, 1)
            marker.setLinePen(qt.QPen(qt.Qt.green, 2, qt.Qt.DashDotLine))
            marker.setSymbol(
                Qwt5.QwtSymbol(Qwt5.QwtSymbol.Diamond, qt.QBrush(qt.Qt.blue),
                               qt.QPen(qt.Qt.red), qt.QSize(15, 15)))
            self.markers.append(index)

        #self.c.enablemarkermode()
        self.c.setMinimumSize(qt.QSize(250, 200))
        vlayout.addWidget(self.c)

        if QTVERSION < '4.0.0':
            self.connect(self.c, qt.PYSIGNAL("QtBlissGraphSignal"), self.chval)
            self.connect(self.c, qt.PYSIGNAL("QtBlissGraphSignal"), self.chmap)
            if slider:
                self.connect(self.slider,
                             qt.PYSIGNAL("doubleSliderValueChanged"),
                             self._sliderChanged)
        else:
            self.connect(self.c, qt.SIGNAL("QtBlissGraphSignal"), self.chval)
            self.connect(self.c, qt.SIGNAL("QtBlissGraphSignal"), self.chmap)

            if slider:
                self.connect(self.slider,
                             qt.SIGNAL("doubleSliderValueChanged"),
                             self._sliderChanged)

        # colormap window can not be resized
        self.setFixedSize(vlayout.minimumSize())

    def _sliderChanged(self, ddict):
        if not self.__sliderConnected: return
        delta = (self.dataMax - self.dataMin) * 0.01
        xmin = self.dataMin + delta * ddict['min']
        xmax = self.dataMin + delta * ddict['max']
        self.setDisplayedMinValue(xmin)
        self.setDisplayedMaxValue(xmax)
        self.__x[1] = xmin
        self.__x[2] = xmax
        self.c.newCurve("ConstrainedCurve", self.__x, self.__y)
        for i in range(4):
            self.c.setMarkerXPos(self.c.markersdict[self.markers[i]]['marker'],
                                 self.__x[i])
            self.c.setMarkerYPos(self.c.markersdict[self.markers[i]]['marker'],
                                 self.__y[i])

        self.c.replot()
        if DEBUG:
            print("Slider asking to update colormap")
        #self._update()
        self.sendColormap()

    def _update(self):
        if DEBUG:
            print("colormap _update called")
        self.marge = (abs(self.dataMax) + abs(self.dataMin)) / 6.0
        self.minmd = self.dataMin - self.marge
        self.maxpd = self.dataMax + self.marge
        self.c.setx1axislimits(self.minmd, self.maxpd)
        self.c.sety1axislimits(-11.5, 11.5)

        self.__x = [self.minmd, self.dataMin, self.dataMax, self.maxpd]
        self.__y = [-10, -10, 10, 10]
        self.c.newCurve("ConstrainedCurve", self.__x, self.__y)
        for i in range(4):
            self.c.setMarkerXPos(self.c.markersdict[self.markers[i]]['marker'],
                                 self.__x[i])
            self.c.setMarkerYPos(self.c.markersdict[self.markers[i]]['marker'],
                                 self.__y[i])
        self.c.replot()
        self.sendColormap()

    def buttonGroupChange(self, val):
        if DEBUG:
            print("buttonGroup asking to update colormap")
        self.setColormapType(val, update=True)
        self._update()

    def setColormapType(self, val, update=False):
        self.colormapType = val
        if QTVERSION > '4.0.0':
            if self.colormapType == 1:
                self.buttonGroup.button(1).setChecked(True)
            elif self.colormapType == 2:
                self.buttonGroup.button(2).setChecked(True)
            else:
                self.colormapType = 0
                self.buttonGroup.button(0).setChecked(True)
        if update:
            self._update()

    def chval(self, ddict):
        if ddict['event'] == 'markerMoving':
            if ddict['marker'] in self.markers:
                markerIndex = self.markers.index(ddict['marker'])
            else:
                print("Unknown marker")
                return
        else:
            return
        diam = markerIndex + 1
        x = ddict['x']
        if diam == 2:
            self.setDisplayedMinValue(x)
        if diam == 3:
            self.setDisplayedMaxValue(x)

    def chmap(self, ddict):
        if ddict['event'] == 'markerMoved':
            if ddict['marker'] in self.markers:
                markerIndex = self.markers.index(ddict['marker'])
            else:
                print("Unknown marker")
                return
        else:
            return
        diam = markerIndex + 1

        x = ddict['x']
        if diam == 2:
            self.setMinValue(x)
        if diam == 3:
            self.setMaxValue(x)

    """
    Colormap
    """

    def setColormap(self, colormap):
        self.colormapIndex = colormap
        if QTVERSION < '4.0.0':
            self.combo.setCurrentItem(colormap)
        else:
            self.combo.setCurrentIndex(colormap)

    def colormapChange(self, colormap):
        self.colormapIndex = colormap
        self.sendColormap()

    # AUTOSCALE
    """
    Autoscale
    """

    def autoscaleChange(self, val):
        self.autoscale = val
        self.setAutoscale(val)
        self.sendColormap()

    def setAutoscale(self, val):
        if DEBUG:
            print("setAutoscale called", val)
        if val:
            if QTVERSION < '4.0.0':
                self.autoScaleButton.setOn(True)
                self.autoScale90Button.setOn(False)
            else:
                self.autoScaleButton.setChecked(True)
                self.autoScale90Button.setChecked(False)
                #self.autoScale90Button.setDown(False)
            self.setMinValue(self.dataMin)
            self.setMaxValue(self.dataMax)
            if self.slider is not None:
                self.__sliderConnected = False
                self.slider.setMinMax(0, 100)
                self.slider.setEnabled(False)
                self.__sliderConnected = True

            self.maxText.setEnabled(0)
            self.minText.setEnabled(0)
            self.c.setEnabled(0)
            self.c.disablemarkermode()
        else:
            if QTVERSION < '4.0.0':
                self.autoScaleButton.setOn(False)
                self.autoScale90Button.setOn(False)
            else:
                self.autoScaleButton.setChecked(False)
                self.autoScale90Button.setChecked(False)
            self.minText.setEnabled(1)
            self.maxText.setEnabled(1)
            if self.slider: self.slider.setEnabled(True)
            self.c.setEnabled(1)
            self.c.enablemarkermode()

    """
    set rangeValues to dataMin ; dataMax-10%
    """

    def autoscale90Change(self, val):
        self.autoscale90 = val
        self.setAutoscale90(val)
        self.sendColormap()

    def setAutoscale90(self, val):
        if val:
            if QTVERSION < '4.0.0':
                self.autoScaleButton.setOn(False)
            else:
                self.autoScaleButton.setChecked(False)
            self.setMinValue(self.dataMin)
            self.setMaxValue(self.dataMax - abs(self.dataMax / 10))
            if self.slider is not None:
                self.__sliderConnected = False
                self.slider.setMinMax(0, 90)
                self.slider.setEnabled(0)
                self.__sliderConnected = True

            self.minText.setEnabled(0)
            self.maxText.setEnabled(0)
            self.c.setEnabled(0)
            self.c.disablemarkermode()
        else:
            if QTVERSION < '4.0.0':
                self.autoScale90Button.setOn(False)
            else:
                self.autoScale90Button.setChecked(False)
            self.minText.setEnabled(1)
            self.maxText.setEnabled(1)
            if self.slider: self.slider.setEnabled(True)
            self.c.setEnabled(1)
            self.c.enablemarkermode()
            self.c.setFocus()

    # MINIMUM
    """
    change min value and update colormap
    """

    def setMinValue(self, val):
        v = float(str(val))
        self.minValue = v
        self.minText.setText("%g" % v)
        self.__x[1] = v
        self.c.setMarkerXPos(self.c.markersdict[self.markers[1]]['marker'], v)
        self.c.newCurve("ConstrainedCurve", self.__x, self.__y)
        self.sendColormap()

    """
    min value changed by text
    """

    def minTextChanged(self):
        text = str(self.minText.text())
        if not len(text): return
        val = float(text)
        self.setMinValue(val)
        if self.minText.hasFocus():
            self.c.setFocus()

    """
    change only the displayed min value
    """

    def setDisplayedMinValue(self, val):
        val = float(val)
        self.minValue = val
        self.minText.setText("%g" % val)
        self.__x[1] = val
        self.c.setMarkerXPos(self.c.markersdict[self.markers[1]]['marker'],
                             val)
        self.c.newCurve("ConstrainedCurve", self.__x, self.__y)

    # MAXIMUM
    """
    change max value and update colormap
    """

    def setMaxValue(self, val):
        v = float(str(val))
        self.maxValue = v
        self.maxText.setText("%g" % v)
        self.__x[2] = v
        self.c.setMarkerXPos(self.c.markersdict[self.markers[2]]['marker'], v)
        self.c.newCurve("ConstrainedCurve", self.__x, self.__y)
        self.sendColormap()

    """
    max value changed by text
    """

    def maxTextChanged(self):
        text = str(self.maxText.text())
        if not len(text): return
        val = float(text)
        self.setMaxValue(val)
        if self.maxText.hasFocus():
            self.c.setFocus()

    """
    change only the displayed max value
    """

    def setDisplayedMaxValue(self, val):
        val = float(val)
        self.maxValue = val
        self.maxText.setText("%g" % val)
        self.__x[2] = val
        self.c.newCurve("ConstrainedCurve", self.__x, self.__y)

    # DATA values
    """
    set min/max value of data source
    """

    def setDataMinMax(self, minVal, maxVal, update=True):
        if minVal is not None:
            vmin = float(str(minVal))
            self.dataMin = vmin
        if maxVal is not None:
            vmax = float(str(maxVal))
            self.dataMax = vmax

        if update:
            # are current values in the good range ?
            self._update()

    """
    send 'ColormapChanged' signal
    """

    def sendColormap(self):
        if DEBUG:
            print("sending colormap")
        #prevent unexpected behaviour because of bad limits
        if self.minValue > self.maxValue:
            vmax = self.minValue
            vmin = self.maxValue
        else:
            vmax = self.maxValue
            vmin = self.minValue
        try:
            if QTVERSION < '4.0.0':
                self.emit(qt.PYSIGNAL("ColormapChanged"),
                          (self.colormapIndex, self.autoscale, vmin, vmax,
                           self.dataMin, self.dataMax, self.colormapType))
            else:
                self.emit(qt.SIGNAL("ColormapChanged"), self.colormapIndex,
                          self.autoscale, vmin, vmax, self.dataMin,
                          self.dataMax, self.colormapType)

        except:
            sys.excepthook(sys.exc_info()[0],
                           sys.exc_info()[1],
                           sys.exc_info()[2])
Esempio n. 2
0
class SimpleFitGUI(qt.QWidget):
    def __init__(self, parent=None, fit=None, graph=None, actions=True):
        qt.QWidget.__init__(self, parent)
        self.setWindowTitle("SimpleFitGUI")
        if fit is None:
            self.fitModule = SimpleFitModule.SimpleFit()
            self.fitModule.importFunctions(SimpleFitUserEstimatedFunctions)
        else:
            self.fitModule = fit
        if graph is None:
            self.__useTab = True
            self.graph = GraphWindow()
        else:
            self.__useTab = False
            self.graph = graph
        if hasattr(self.graph, "fitButton"):
            self.graph.fitButton.hide()
        if hasattr(self.graph, "scanWindowInfoWidget"):
            self.graph.scanWindowInfoWidget.hide()
        self._configurationDialog = None
        self.mainLayout = qt.QVBoxLayout(self)
        self.mainLayout.setMargin(2)
        self.mainLayout.setSpacing(2)
        self.topWidget = TopWidget(self)
        config = self.fitModule.getConfiguration()
        self.topWidget.setFunctions(config['fit']['functions'])
        config = None

        if self.__useTab:
            self.mainTab = qt.QTabWidget(self)
            self.mainLayout.addWidget(self.mainTab)
            self.parametersTable = Parameters.Parameters()
            self.mainTab.addTab(self.graph, 'GRAPH')
            self.mainTab.addTab(self.parametersTable, 'FIT')
        else:
            self.parametersTable = Parameters.Parameters(self)

        self.statusWidget = StatusWidget(self)

        self.mainLayout.addWidget(self.topWidget)
        if self.__useTab:
            self.mainLayout.addWidget(self.mainTab)
        else:
            self.mainLayout.addWidget(self.parametersTable)
        self.mainLayout.addWidget(self.statusWidget)

        if actions:
            #build the actions widget
            self.fitActions = qt.QWidget(self)
            self.fitActions.mainLayout = qt.QHBoxLayout(self.fitActions)
            self.fitActions.mainLayout.setMargin(2)
            self.fitActions.mainLayout.setSpacing(2)
            self.fitActions.estimateButton = qt.QPushButton(self.fitActions)
            self.fitActions.estimateButton.setText("Estimate")
            self.fitActions.startFitButton = qt.QPushButton(self.fitActions)
            self.fitActions.startFitButton.setText("Start Fit")
            self.fitActions.dismissButton = qt.QPushButton(self.fitActions)
            self.fitActions.dismissButton.setText("Dismiss")
            self.fitActions.mainLayout.addWidget(
                self.fitActions.estimateButton)
            self.fitActions.mainLayout.addWidget(
                self.fitActions.startFitButton)
            self.fitActions.mainLayout.addWidget(self.fitActions.dismissButton)
            self.mainLayout.addWidget(self.fitActions)

        #connect top widget
        self.connect(self.topWidget.addFunctionButton, qt.SIGNAL("clicked()"),
                     self.importFunctions)

        self.connect(self.topWidget.fitFunctionCombo,
                     qt.SIGNAL("currentIndexChanged(int)"),
                     self.fitFunctionComboSlot)

        self.connect(self.topWidget.backgroundCombo,
                     qt.SIGNAL("currentIndexChanged(int)"),
                     self.backgroundComboSlot)

        self.connect(self.topWidget.configureButton, qt.SIGNAL("clicked()"),
                     self.configureButtonSlot)

        if actions:
            #connect actions
            self.connect(self.fitActions.estimateButton,
                         qt.SIGNAL("clicked()"), self.estimate)
            self.connect(self.fitActions.startFitButton,
                         qt.SIGNAL("clicked()"), self.startFit)
            self.connect(self.fitActions.dismissButton, qt.SIGNAL("clicked()"),
                         self.dismiss)

    def importFunctions(self, functionsfile=None):
        if functionsfile is None:
            fn = qt.QFileDialog.getOpenFileName()
            if fn.isEmpty():
                functionsfile = ""
            else:
                functionsfile = qt.safe_str(fn)
            if not len(functionsfile):
                return
        if DEBUG:
            self.fitModule.importFunctions(functionsfile)
        else:
            try:
                self.fitModule.importFunctions(functionsfile)
            except:
                qt.QMessageBox.critical(self, "ERROR", "Function not imported")

        config = self.fitModule.getConfiguration()
        self.topWidget.setFunctions(config['fit']['functions'])

    def fitFunctionComboSlot(self, idx):
        if idx <= 0:
            fname = "None"
        else:
            fname = qt.safe_str(self.topWidget.fitFunctionCombo.itemText(idx))
        self.fitModule.setFitFunction(fname)

    def backgroundComboSlot(self, idx):
        if idx <= 0:
            fname = "None"
        else:
            fname = qt.safe_str(self.topWidget.backgroundCombo.itemText(idx))
        self.setBackgroundFunction(fname)

    def configureButtonSlot(self):
        if self._configurationDialog is None:
            self._configurationDialog =\
                SimpleFitConfigurationGUI.SimpleFitConfigurationGUI()
        self._configurationDialog.setSimpleFitInstance(self.fitModule)
        if not self._configurationDialog.exec_():
            if DEBUG:
                print("NOT UPDATING CONFIGURATION")
            oldConfig = self.fitModule.getConfiguration()
            self._configurationDialog.setConfiguration(oldConfig)
            return
        newConfig = self._configurationDialog.getConfiguration()
        self.topWidget.setFunctions(newConfig['fit']['functions'])
        self.fitModule.setConfiguration(newConfig)
        newConfig = self.fitModule.getConfiguration()
        #self.topWidget.setFunctions(newConfig['fit']['functions'])
        fname = self.fitModule.getFitFunction()
        if fname in [None, "None", "NONE"]:
            idx = 0
        else:
            idx = newConfig['fit']['functions'].index(fname) + 1
        self.topWidget.fitFunctionCombo.setCurrentIndex(idx)
        fname = self.fitModule.getBackgroundFunction()
        if fname in [None, "None", "NONE"]:
            idx = 0
        else:
            idx = newConfig['fit']['functions'].index(fname) + 1
        idx = self.topWidget.backgroundCombo.findText(fname)
        self.topWidget.backgroundCombo.setCurrentIndex(idx)
        if DEBUG:
            print("TABLE TO BE CLEANED")
        #self.estimate()

    def setFitFunction(self, fname):
        current = self.fitModule.getFitFunction()
        if current != fname:
            self.fitModule.setFitFunction(fname)
            idx = self.topWidget.fitFunctionCombo.findText(fname)
            self.topWidget.fitFunctionCombo.setCurrentIndex(idx)

    def setBackgroundFunction(self, fname):
        current = self.fitModule.getBackgroundFunction()
        if current != fname:
            self.fitModule.setBackgroundFunction(fname)
            idx = self.topWidget.backgroundCombo.findText(fname)
            self.topWidget.backgroundCombo.setCurrentIndex(idx)

    def setData(self, *var, **kw):
        returnValue = self.fitModule.setData(*var, **kw)
        if self.__useTab:
            if hasattr(self.graph, "addCurve"):
                self.graph.addCurve(self.fitModule._x,
                                    self.fitModule._y,
                                    legend='Data',
                                    replace=True)
            elif hasattr(self.graph, "newCurve"):
                self.graph.clearCurves()
                self.graph.newCurve('Data', self.fitModule._x,
                                    self.fitModule._y)
            self.graph.replot()
        return returnValue

    def estimate(self):
        self.setStatus("Estimate started")
        self.statusWidget.chi2Line.setText("")
        try:
            x = self.fitModule._x
            y = self.fitModule._y
            if hasattr(self.graph, "addCurve"):
                self.graph.addCurve(x, y, 'Data')
            elif hasattr(self.graph, "newCurve"):
                self.graph.newCurve('Data', x, y)
            self.graph.removeCurve("Fit")
            self.graph.removeCurve("Background", replot=True)
            self.fitModule.estimate()
            self.setStatus()
            self.parametersTable.fillTableFromFit(self.fitModule.paramlist)
        except:
            if DEBUG:
                raise
            text = "%s:%s" % (sys.exc_info()[0], sys.exc_info()[1])
            msg = qt.QMessageBox(self)
            msg.setIcon(qt.QMessageBox.Critical)
            msg.setText(text)
            msg.exec_()
            self.setStatus("Ready (after estimate error)")

    def setStatus(self, text=None):
        if text is None:
            text = "%s" % self.fitModule.getStatus()

        self.statusWidget.statusLine.setText(text)

    def startFit(self):
        #get parameters from table
        self.fitModule.paramlist = self.parametersTable.fillFitFromTable()
        try:
            values, chisq, sigma, niter, lastdeltachi = self.fitModule.startFit(
            )
            self.setStatus()
        except:
            if DEBUG:
                raise
            text = "%s:%s" % (sys.exc_info()[0], sys.exc_info()[1])
            msg = qt.QMessageBox(self)
            msg.setIcon(qt.QMessageBox.Critical)
            msg.setText(text)
            msg.exec_()
            self.setStatus("Ready (after fit error)")
            return

        self.parametersTable.fillTableFromFit(self.fitModule.paramlist)
        self.statusWidget.chi2Line.setText("%f" % chisq)
        ddict = {}
        ddict['event'] = "FitFinished"
        ddict['x'] = self.fitModule._x
        ddict['y'] = self.fitModule._y
        ddict['yfit'] = self.evaluateDefinedFunction()
        self.emit(qt.SIGNAL('SimpleFitSignal'), ddict)
        self.updateGraph()

    def updateGraph(self):
        #this is to be overwritten and for test purposes
        if self.graph is None:
            return
        ddict = {}
        ddict['event'] = "FitFinished"
        ddict['x'] = self.fitModule._x
        ddict['y'] = self.fitModule._y
        ddict['yfit'] = self.evaluateDefinedFunction()
        ddict['background'] = self.fitModule._evaluateBackground()
        if hasattr(self.graph, "addCurve"):
            self.graph.addCurve(ddict['x'], ddict['y'], 'Data')
            self.graph.addCurve(ddict['x'], ddict['yfit'], 'Fit')
            self.graph.addCurve(ddict['x'], ddict['background'], 'Background')
        elif hasattr(self.graph, "newCurve"):
            self.graph.newCurve('Data', ddict['x'], ddict['y'])
            self.graph.newCurve('Fit', ddict['x'], ddict['yfit'])
            self.graph.newCurve('Background', ddict['x'], ddict['background'])
        self.graph.replot()
        self.graph.show()

    def dismiss(self):
        self.close()

    def evaluateDefinedFunction(self, x=None):
        return self.fitModule.evaluateDefinedFunction()