Exemplo n.º 1
0
    def setPlotWidget(self):
        self.plotWidget = QwtPlot(self.plotFrame)
        sizePolicy = QSizePolicy(QSizePolicy.Expanding, QSizePolicy.Expanding)
        sizePolicy.setHorizontalStretch(0)
        sizePolicy.setVerticalStretch(1)
        sizePolicy.setHeightForWidth(
            self.plotWidget.sizePolicy().hasHeightForWidth())
        self.plotWidget.setSizePolicy(sizePolicy)
        self.plotWidget.setMinimumSize(QSize(0, 0))
        self.plotWidget.setAutoFillBackground(False)
        self.plotWidget.setCanvasBackground(Qt.white)
        self.plotWidget.plotLayout().setAlignCanvasToScales(True)

        zoomer = QwtPlotZoomer(QwtPlot.xBottom, QwtPlot.yLeft,
                               QwtPicker.DragSelection, QwtPicker.AlwaysOff,
                               self.plotWidget.canvas())
        zoomer.setRubberBandPen(QPen(Qt.blue))
        # The pen to draw zone of zooming.

        picker = QwtPlotPicker(QwtPlot.xBottom, QwtPlot.yLeft,
                               QwtPicker.NoSelection,
                               QwtPlotPicker.CrossRubberBand,
                               QwtPicker.AlwaysOn, self.plotWidget.canvas())
        picker.setTrackerPen(QPen(Qt.green))
        grid = QwtPlotGrid()
        grid.setPen(QPen(QColor('grey'), 0, Qt.DotLine))
        grid.attach(self.plotWidget)

        layout = self.plotLayout
        layout.addWidget(self.plotWidget)
Exemplo n.º 2
0
    def __init__(self, spurset, fef, parent):
        chart.__init__(self, spurset, fef, parent)
        self.plot = QwtPlot(parent)

        self.plot.setAxisScale(xaxis, self.spurset.RFmin, self.spurset.RFmax)
        self.plot.setAxisScale(yaxis, -self.spurset.dspan / 2,
                               self.spurset.dspan / 2)

        self.plot.setCanvasBackground(Qt.white)
        grid = QwtPlotGrid()
        grid.setMajPen(QPen(Qt.black, 1, Qt.DotLine))
        grid.attach(self.plot)

        self.plot.insertLegend(QwtLegend(self.parent), QwtPlot.ExternalLegend)

        # a picker to be used for the front-end filter parallelogram
        self.picker = QwtPlotPicker(xaxis, yaxis, QwtPicker.PointSelection,
                                    QwtPlotPicker.NoRubberBand,
                                    QwtPicker.AlwaysOff, self.plot.canvas())
        # gonna need this to implement ondrop()
        self._mouseRelease = self.picker.widgetMouseReleaseEvent
        self._picked_obj = None

        self.picker.connect(self.picker, SIGNAL('appended(const QPoint&)'),
                            self.onpick)
        self.picker.connect(self.picker, SIGNAL('moved(const QPoint&)'),
                            self.ondrag)
        # all about the monkey-patching
        self.picker.widgetMouseReleaseEvent = self.ondrop
Exemplo n.º 3
0
 def __init__(self, plot, label, color="green", mode=QwtPicker.PointSelection,
              rubber_band=QwtPicker.VLineRubberBand, tracker_mode=QwtPicker.ActiveOnly, track=None):
     QwtPlotPicker.__init__(self, QwtPlot.xBottom, QwtPlot.yRight, mode, rubber_band, tracker_mode,
                            plot.canvas())
     self.plot = plot
     self.label = label
     self.track = track
     self.color = QColor(color)
     self.setRubberBandPen(QPen(self.color))
Exemplo n.º 4
0
    def __init__(self, parent):
        QMainWindow.__init__(self, parent)
        DlgUtils.__init__(self, 'Live data')
        self.panel = parent
        layout1 = QVBoxLayout()
        self.plot = QwtPlot(self)
        layout1.addWidget(self.plot)
        self.curve = QwtPlotCurve()
        self.curve.setRenderHint(QwtPlotCurve.RenderAntialiased)
        self.curve.attach(self.plot)
        self.marker = QwtPlotMarker()
        self.marker.attach(self.plot)
        self.markerpen = QPen(Qt.red)
        self.marker.setSymbol(
            QwtSymbol(QwtSymbol.Ellipse, QBrush(), self.markerpen, QSize(7,
                                                                         7)))
        self.zoomer = QwtPlotZoomer(self.plot.canvas())
        self.zoomer.setMousePattern(QwtPlotZoomer.MouseSelect3, Qt.NoButton)
        self.picker = QwtPlotPicker(self.plot.canvas())
        self.picker.setSelectionFlags(QwtPlotPicker.PointSelection
                                      | QwtPlotPicker.ClickSelection)
        self.picker.setMousePattern(QwtPlotPicker.MouseSelect1, Qt.MidButton)
        self.picker.selected.connect(self.pickerSelected)
        layout2 = QHBoxLayout()
        layout2.addWidget(QLabel('Scale:', self))
        self.scale = QComboBox(self)
        self.scale.addItems([
            'Single detectors, sorted by angle',
            'Scattering angle 2theta (deg)', 'Q value (A-1)'
        ])
        self.scale.currentIndexChanged[int].connect(self.scaleChanged)
        layout2.addWidget(self.scale)
        layout2.addStretch()
        self.scaleframe = QFrame(self)
        self.scaleframe.setLayout(layout2)
        self.scaleframe.setVisible(False)
        layout1.addWidget(self.scaleframe)
        mainframe = QFrame(self)
        mainframe.setLayout(layout1)
        self.setCentralWidget(mainframe)
        self.setContentsMargins(6, 6, 6, 6)
        plotfont = scaledFont(self.font(), 0.7)
        self.plot.setAxisFont(QwtPlot.xBottom, plotfont)
        self.plot.setAxisFont(QwtPlot.yLeft, plotfont)
        self.plot.setCanvasBackground(Qt.white)
        self.resize(800, 200)

        self._detinfo = None
        self._anglemap = None
        self._infowindow = None
        self._infolabel = None
        self._xs = self._ys = None
        self._type = None
Exemplo n.º 5
0
    def __init__(self, spurset, fef, parent):
        chart.__init__(self, spurset, fef, parent)
        self.plot = QwtPlot(parent)

        self.plot.setAxisScale(xaxis, self.spurset.RFmin,
                               self.spurset.RFmax)
        self.plot.setAxisScale(yaxis, -self.spurset.dspan/2,
                               self.spurset.dspan/2)

        self.plot.setCanvasBackground(Qt.white)
        grid = QwtPlotGrid()
        grid.setMajPen(QPen(Qt.black, 1, Qt.DotLine))
        grid.attach(self.plot)

        self.plot.insertLegend(QwtLegend(self.parent), QwtPlot.ExternalLegend)

        # a picker to be used for the front-end filter parallelogram
        self.picker = QwtPlotPicker(xaxis, yaxis,
                                    QwtPicker.PointSelection,
                                    QwtPlotPicker.NoRubberBand,
                                    QwtPicker.AlwaysOff,
                                    self.plot.canvas())
        # gonna need this to implement ondrop()
        self._mouseRelease = self.picker.widgetMouseReleaseEvent
        self._picked_obj = None

        self.picker.connect(self.picker, SIGNAL('appended(const QPoint&)'),
                            self.onpick)
        self.picker.connect(self.picker, SIGNAL('moved(const QPoint&)'),
                            self.ondrag)
        # all about the monkey-patching
        self.picker.widgetMouseReleaseEvent = self.ondrop
Exemplo n.º 6
0
 def widgetLeaveEvent(self, ev):
     if self.track:
         self.track(None, None)
     QwtPlotPicker.widgetLeaveEvent(self, ev)
Exemplo n.º 7
0
    def setupUi(self, MainWindow):
        MainWindow.setObjectName(_fromUtf8("MainWindow"))
        MainWindow.resize(847, 480)
        self.centralwidget = QtGui.QWidget(MainWindow)
        self.centralwidget.setObjectName(_fromUtf8("centralwidget"))
        self.horizontalLayout_2 = QtGui.QHBoxLayout(self.centralwidget)
        self.horizontalLayout_2.setObjectName(_fromUtf8("horizontalLayout_2"))
        self.verticalLayout = QtGui.QVBoxLayout()
        self.verticalLayout.setObjectName(_fromUtf8("verticalLayout"))

        #Tworzenie zakładek
        self.tabs = QtGui.QTabWidget(self.centralwidget)

        #Główny wykre
        self.plot = QwtPlot(self.centralwidget)
        self.plot.setObjectName(_fromUtf8("plot"))
        self.plot.setAxisScale(self.plot.yLeft, -20, 80)
        self.plot.setAutoFillBackground(True)
        #self.plot.setPalette(Qt.Qt.black)
        self.plot.setCanvasBackground(Qt.Qt.black)

        self.grid = QwtPlotGrid()
        '''self.Yscale = QwtScaleDiv()
        self.Yscale.setInterval(10)
        self.Xscale = QwtScaleDiv()
        self.Xscale.setInterval(10)
        self.grid.setYDiv(self.YScale)
        self.grid.setXDiv(self.Xscale)'''
        self.grid.setMajPen(Qt.Qt.gray)
        self.grid.attach(self.plot)

        self.tabs.addTab(self.plot, "Spectrum")

        self.curve = QwtPlotCurve('')
        self.curve.setPen(Qt.Qt.yellow)
        self.curve.attach(self.plot)

        self.hold_curve = QwtPlotCurve('')
        self.hold_curve.setPen(Qt.Qt.red)

        self.peak_marker = QwtPlotMarker()
        self.symbol = QwtSymbol(QwtSymbol.DTriangle, QtGui.QBrush(Qt.Qt.red),
                                QtGui.QPen(Qt.Qt.red), QtCore.QSize(10, 10))
        self.peak_marker.setSymbol(self.symbol)
        self.peak_marker.setLabelAlignment(Qt.Qt.AlignTop)

        self.sybmol_2 = QwtSymbol(QwtSymbol.DTriangle, QtGui.QBrush(Qt.Qt.red),
                                  QtGui.QPen(Qt.Qt.white),
                                  QtCore.QSize(10, 10))
        self.marker_1 = QwtPlotMarker()
        self.marker_1.setSymbol(self.sybmol_2)
        self.marker_1.setLabelAlignment(Qt.Qt.AlignTop)
        self.marker_2 = QwtPlotMarker()
        self.marker_2.setSymbol(self.sybmol_2)
        self.marker_2.setLabelAlignment(Qt.Qt.AlignTop)
        self.marker_3 = QwtPlotMarker()
        self.marker_3.setSymbol(self.sybmol_2)
        self.marker_3.setLabelAlignment(Qt.Qt.AlignTop)
        self.marker_4 = QwtPlotMarker()
        self.marker_4.setSymbol(self.sybmol_2)
        self.marker_4.setLabelAlignment(Qt.Qt.AlignTop)
        self.delta_marker = QwtPlotMarker()
        self.delta_marker.setSymbol(self.sybmol_2)
        self.delta_marker.setLabelAlignment(Qt.Qt.AlignTop)

        self.markers = [
            self.marker_1, self.marker_2, self.marker_3, self.marker_4
        ]

        self.save_curve_1 = QwtPlotCurve('')
        self.save_curve_1.setPen(Qt.Qt.green)
        self.save_curve_2 = QwtPlotCurve('')
        self.save_curve_2.setPen(Qt.Qt.cyan)
        self.save_curve_3 = QwtPlotCurve('')
        self.save_curve_3.setPen(Qt.Qt.magenta)
        self.saved_curves = [
            self.save_curve_1, self.save_curve_2, self.save_curve_3
        ]

        #Wykres waterfall
        '''self.plot_2 = QwtPlot(self.centralwidget)
        self.plot_2.setObjectName(_fromUtf8("plot_2"))
        
        self.waterfall = QwtPlotSpectrogram()
        self.waterfall.attach(self.plot_2)
        
        self.colorMap = QwtLinearColorMap(Qt.Qt.darkCyan, Qt.Qt.red)
        self.scaleColors(80)
        self.waterfall.setColorMap(self.colorMap)
        #self.waterfallData = QwtRasterData()
        #self.tabs.addTab(self.plot_2, "Waterfall")'''

        self.verticalLayout.addWidget(self.tabs)

        self.picker = QwtPlotPicker(
            QwtPlot.xBottom, QwtPlot.yLeft,
            QwtPicker.PointSelection | QwtPicker.DragSelection,
            QwtPlotPicker.CrossRubberBand, QwtPicker.AlwaysOn,
            self.plot.canvas())
        self.picker.setTrackerPen(Qt.Qt.white)
        self.picker.setRubberBandPen(Qt.Qt.gray)

        self.freqBox = QtGui.QGroupBox(self.centralwidget)
        self.freqBox.setObjectName(_fromUtf8("freqBox"))
        self.verticalLayout_3 = QtGui.QVBoxLayout(self.freqBox)

        self.horizontalLayout = QtGui.QHBoxLayout()
        self.horizontalLayout.setObjectName(_fromUtf8("horizontalLayout"))

        self.formLayout_3 = QtGui.QFormLayout()
        self.formLayout_3.setObjectName(_fromUtf8("formLayout_3"))
        self.label = QtGui.QLabel(self.freqBox)
        self.label.setObjectName(_fromUtf8("label"))
        self.formLayout_3.setWidget(0, QtGui.QFormLayout.LabelRole, self.label)

        self.startEdit = QtGui.QDoubleSpinBox(self.freqBox)
        self.startEdit.setObjectName(_fromUtf8("startEdit"))
        self.startEdit.setDecimals(2)
        self.startEdit.setRange(1, 1280)
        self.startEdit.setKeyboardTracking(False)
        self.formLayout_3.setWidget(0, QtGui.QFormLayout.FieldRole,
                                    self.startEdit)
        self.horizontalLayout.addLayout(self.formLayout_3)

        self.formLayout_4 = QtGui.QFormLayout()
        self.formLayout_4.setObjectName(_fromUtf8("formLayout_4"))
        self.label_2 = QtGui.QLabel(self.freqBox)
        self.label_2.setObjectName(_fromUtf8("label_2"))
        self.formLayout_4.setWidget(0, QtGui.QFormLayout.LabelRole,
                                    self.label_2)

        self.stopEdit = QtGui.QDoubleSpinBox(self.freqBox)
        self.stopEdit.setObjectName(_fromUtf8("stopEdit"))
        self.stopEdit.setDecimals(2)
        self.stopEdit.setRange(1, 1280)
        self.stopEdit.setKeyboardTracking(False)

        self.formLayout_4.setWidget(0, QtGui.QFormLayout.FieldRole,
                                    self.stopEdit)
        self.horizontalLayout.addLayout(self.formLayout_4)
        self.formLayout_5 = QtGui.QFormLayout()
        self.formLayout_5.setObjectName(_fromUtf8("formLayout_5"))
        self.label_3 = QtGui.QLabel(self.freqBox)
        self.label_3.setObjectName(_fromUtf8("label_3"))
        self.formLayout_5.setWidget(0, QtGui.QFormLayout.LabelRole,
                                    self.label_3)

        self.rbwEdit = QtGui.QComboBox(self.freqBox)
        self.rbwEdit.setObjectName(_fromUtf8("rbwEdit"))
        self.rbwEdit.addItem('0,21 kHz', 16384)
        self.rbwEdit.addItem('0,42 kHz', 8192)
        self.rbwEdit.addItem('0,84 kHz', 4096)
        self.rbwEdit.addItem('1,69 kHz', 2048)
        self.rbwEdit.addItem('3,38 kHz', 1024)
        self.rbwEdit.addItem('6,75 kHz', 512)
        self.rbwEdit.addItem('13,5 kHz', 256)
        self.rbwEdit.addItem('27 kHz', 128)
        self.rbwEdit.addItem('54 kHz', 64)
        self.rbwEdit.addItem('108 kHz', 32)
        self.rbwEdit.addItem('216 kHz', 16)
        self.rbwEdit.addItem('432 kHz', 8)
        self.rbwEdit.setCurrentIndex(4)

        self.formLayout_5.setWidget(0, QtGui.QFormLayout.FieldRole,
                                    self.rbwEdit)
        self.horizontalLayout.addLayout(self.formLayout_5)
        spacerItem = QtGui.QSpacerItem(40, 20, QtGui.QSizePolicy.Expanding,
                                       QtGui.QSizePolicy.Minimum)
        self.horizontalLayout.addItem(spacerItem)
        self.verticalLayout_3.addLayout(self.horizontalLayout)

        self.horizontalLayout_3 = QtGui.QHBoxLayout()
        self.horizontalLayout_3.setObjectName(_fromUtf8("horizontalLayout_3"))
        self.formLayout_7 = QtGui.QFormLayout()
        self.formLayout_7.setObjectName(_fromUtf8("formLayout_7"))
        self.centerLabel = QtGui.QLabel(self.freqBox)
        self.centerLabel.setObjectName(_fromUtf8("centerLabel"))
        self.formLayout_7.setWidget(0, QtGui.QFormLayout.LabelRole,
                                    self.centerLabel)

        self.centerEdit = QtGui.QDoubleSpinBox(self.freqBox)
        self.centerEdit.setObjectName(_fromUtf8("centerEdit"))
        self.centerEdit.setDecimals(2)
        self.centerEdit.setRange(1, 1280)
        self.centerEdit.setKeyboardTracking(False)
        self.formLayout_7.setWidget(0, QtGui.QFormLayout.FieldRole,
                                    self.centerEdit)
        self.horizontalLayout_3.addLayout(self.formLayout_7)

        self.formLayout_8 = QtGui.QFormLayout()
        self.formLayout_8.setObjectName(_fromUtf8("formLayout_8"))
        self.spanLabel = QtGui.QLabel(self.freqBox)
        self.spanLabel.setObjectName(_fromUtf8("spanLabel"))
        self.formLayout_8.setWidget(0, QtGui.QFormLayout.LabelRole,
                                    self.spanLabel)

        self.spanEdit = QtGui.QDoubleSpinBox(self.freqBox)
        self.spanEdit.setObjectName(_fromUtf8("spanEdit"))
        self.spanEdit.setDecimals(2)
        self.spanEdit.setRange(0.1, 1280)
        self.spanEdit.setKeyboardTracking(False)
        self.formLayout_8.setWidget(0, QtGui.QFormLayout.FieldRole,
                                    self.spanEdit)
        self.horizontalLayout_3.addLayout(self.formLayout_8)
        self.horizontalLayout_3.addItem(spacerItem)
        self.verticalLayout_3.addLayout(self.horizontalLayout_3)

        self.verticalLayout.addWidget(self.freqBox)
        self.horizontalLayout_2.addLayout(self.verticalLayout)

        self.settingsBox = QtGui.QGroupBox(self.centralwidget)
        self.settingsBox.setMaximumSize(QtCore.QSize(250, 16777215))
        self.settingsBox.setObjectName(_fromUtf8("settingsBox"))
        self.verticalLayout_2 = QtGui.QVBoxLayout(self.settingsBox)
        self.verticalLayout_2.setObjectName(_fromUtf8("verticalLayout_2"))

        self.formLayout = QtGui.QFormLayout()
        self.formLayout.setObjectName(_fromUtf8("formLayout"))
        self.gainLabel = QtGui.QLabel(self.settingsBox)
        self.gainLabel.setAlignment(QtCore.Qt.AlignRight
                                    | QtCore.Qt.AlignTrailing
                                    | QtCore.Qt.AlignVCenter)
        self.gainLabel.setObjectName(_fromUtf8("gainLabel"))
        self.formLayout.setWidget(0, QtGui.QFormLayout.LabelRole,
                                  self.gainLabel)
        self.gainSlider = QtGui.QSlider(self.settingsBox)
        self.gainSlider.setMaximum(49)
        self.gainSlider.setSingleStep(1)
        self.gainSlider.setProperty("value", 20)
        self.gainSlider.setOrientation(QtCore.Qt.Horizontal)
        self.gainSlider.setObjectName(_fromUtf8("gainSlider"))
        self.formLayout.setWidget(0, QtGui.QFormLayout.FieldRole,
                                  self.gainSlider)
        self.verticalLayout_2.addLayout(self.formLayout)

        self.gainDisp = QtGui.QLCDNumber(self.settingsBox)
        self.gainDisp.setSegmentStyle(QtGui.QLCDNumber.Flat)
        self.verticalLayout_2.addWidget(self.gainDisp)
        '''self.offsetButton = QtGui.QPushButton(self.settingsBox)
        self.offsetButton.setText("Remove DC offset")
        self.verticalLayout_2.addWidget(self.offsetButton)  '''

        self.formLayout_2 = QtGui.QFormLayout()
        self.formLayout_2.setObjectName(_fromUtf8("formLayout_2"))
        self.refLabel = QtGui.QLabel(self.settingsBox)
        self.refLabel.setAlignment(QtCore.Qt.AlignRight
                                   | QtCore.Qt.AlignTrailing
                                   | QtCore.Qt.AlignVCenter)
        self.refLabel.setObjectName(_fromUtf8("refLabel"))
        self.formLayout_2.setWidget(0, QtGui.QFormLayout.LabelRole,
                                    self.refLabel)
        self.refEdit = QtGui.QDoubleSpinBox(self.settingsBox)
        self.refEdit.setObjectName(_fromUtf8("refEdit"))
        self.refEdit.setDecimals(0)
        self.refEdit.setKeyboardTracking(False)
        self.formLayout_2.setWidget(0, QtGui.QFormLayout.FieldRole,
                                    self.refEdit)
        self.verticalLayout_2.addLayout(self.formLayout_2)

        spacerItem1 = QtGui.QSpacerItem(158, 304, QtGui.QSizePolicy.Minimum,
                                        QtGui.QSizePolicy.Expanding)
        self.verticalLayout_2.addItem(spacerItem1)

        #Settings tabs
        self.settings_tabs = QtGui.QTabWidget(self.settingsBox)
        self.verticalLayout_2.addWidget(self.settings_tabs)

        self.verticalLayout_4 = QtGui.QVBoxLayout()
        self.saveButton = QtGui.QPushButton(self.settingsBox)
        self.saveButton.setText("Save plot")
        self.verticalLayout_4.addWidget(self.saveButton)

        self.formLayout_9 = QtGui.QFormLayout()
        self.formLayout_9.setObjectName(_fromUtf8("formLayout_9"))
        self.avgLabel = QtGui.QLabel(self.settingsBox)
        self.avgLabel.setAlignment(QtCore.Qt.AlignRight
                                   | QtCore.Qt.AlignTrailing
                                   | QtCore.Qt.AlignVCenter)
        self.avgLabel.setObjectName(_fromUtf8("avgLabel"))
        self.formLayout_9.setWidget(0, QtGui.QFormLayout.LabelRole,
                                    self.avgLabel)
        self.avgCheck = QtGui.QCheckBox(self.settingsBox)
        self.formLayout_9.setWidget(0, QtGui.QFormLayout.FieldRole,
                                    self.avgCheck)
        self.verticalLayout_4.addLayout(self.formLayout_9)

        self.formLayout_10 = QtGui.QFormLayout()
        self.avgLabel_2 = QtGui.QLabel(self.settingsBox)
        self.avgLabel_2.setAlignment(QtCore.Qt.AlignRight
                                     | QtCore.Qt.AlignTrailing
                                     | QtCore.Qt.AlignVCenter)
        self.avgLabel_2.setObjectName(_fromUtf8("avgLabel_2"))
        self.formLayout_10.setWidget(0, QtGui.QFormLayout.LabelRole,
                                     self.avgLabel_2)
        self.avgEdit = QtGui.QDoubleSpinBox(self.settingsBox)
        self.avgEdit.setDecimals(0)
        self.avgEdit.setRange(1, 100)
        self.avgEdit.setKeyboardTracking(False)
        self.avgEdit.setValue(10)
        self.formLayout_10.setWidget(0, QtGui.QFormLayout.FieldRole,
                                     self.avgEdit)
        self.verticalLayout_4.addLayout(self.formLayout_10)

        self.formLayout_6 = QtGui.QFormLayout()
        self.formLayout_6.setObjectName(_fromUtf8("formLayout_6"))
        self.holdLabel = QtGui.QLabel(self.settingsBox)
        self.holdLabel.setAlignment(QtCore.Qt.AlignRight
                                    | QtCore.Qt.AlignTrailing
                                    | QtCore.Qt.AlignVCenter)
        self.holdLabel.setObjectName(_fromUtf8("holdLabel"))
        self.formLayout_6.setWidget(0, QtGui.QFormLayout.LabelRole,
                                    self.holdLabel)
        self.holdCheck = QtGui.QCheckBox(self.settingsBox)
        self.formLayout_6.setWidget(0, QtGui.QFormLayout.FieldRole,
                                    self.holdCheck)
        self.verticalLayout_4.addLayout(self.formLayout_6)

        self.formLayout_11 = QtGui.QFormLayout()
        self.formLayout_11.setObjectName(_fromUtf8("formLayout_11"))
        self.peakLabel = QtGui.QLabel(self.settingsBox)
        self.peakLabel.setAlignment(QtCore.Qt.AlignRight
                                    | QtCore.Qt.AlignTrailing
                                    | QtCore.Qt.AlignVCenter)
        self.peakLabel.setObjectName(_fromUtf8("peakLabel"))
        self.formLayout_11.setWidget(0, QtGui.QFormLayout.LabelRole,
                                     self.peakLabel)
        self.peakCheck = QtGui.QCheckBox(self.settingsBox)
        self.formLayout_11.setWidget(0, QtGui.QFormLayout.FieldRole,
                                     self.peakCheck)
        self.verticalLayout_4.addLayout(self.formLayout_11)

        self.peakStatus = QtGui.QLabel("Peak: ")

        self.correctButton = QtGui.QPushButton(self.settingsBox)
        self.correctButton.setText("Correction")
        self.verticalLayout_4.addWidget(self.correctButton)

        self.verticalLayout_5 = QtGui.QVBoxLayout()
        self.traceButton = QtGui.QPushButton(self.settingsBox)
        self.traceButton.setText("Save trace 1")
        self.verticalLayout_5.addWidget(self.traceButton)

        self.traceButton_2 = QtGui.QPushButton(self.settingsBox)
        self.traceButton_2.setText("Save trace 2")
        self.verticalLayout_5.addWidget(self.traceButton_2)

        self.traceButton_3 = QtGui.QPushButton(self.settingsBox)
        self.traceButton_3.setText("Save trace 3")
        self.verticalLayout_5.addWidget(self.traceButton_3)

        self.traces = [
            self.traceButton, self.traceButton_2, self.traceButton_3
        ]

        #MARKERS
        self.gridLayout = QtGui.QGridLayout()
        self.markerLabel = QtGui.QLabel(self.settingsBox)
        self.markerLabel.setAlignment(QtCore.Qt.AlignRight
                                      | QtCore.Qt.AlignTrailing
                                      | QtCore.Qt.AlignVCenter)
        self.gridLayout.addWidget(self.markerLabel, 0, 0)
        self.markerCheck = QtGui.QCheckBox(self.settingsBox)
        self.gridLayout.addWidget(self.markerCheck, 0, 1)
        self.markerEdit = QtGui.QDoubleSpinBox(self.settingsBox)
        self.markerEdit.setDecimals(2)
        self.markerEdit.setKeyboardTracking(False)
        self.markerEdit.setDisabled(True)
        self.markerEdit.setSingleStep(0.1)
        self.gridLayout.addWidget(self.markerEdit, 0, 2)

        self.markerLabel_2 = QtGui.QLabel(self.settingsBox)
        self.markerLabel_2.setAlignment(QtCore.Qt.AlignRight
                                        | QtCore.Qt.AlignTrailing
                                        | QtCore.Qt.AlignVCenter)
        self.gridLayout.addWidget(self.markerLabel_2, 2, 0)
        self.markerCheck_2 = QtGui.QCheckBox(self.settingsBox)
        self.gridLayout.addWidget(self.markerCheck_2, 2, 1)
        self.markerEdit_2 = QtGui.QDoubleSpinBox(self.settingsBox)
        self.markerEdit_2.setDecimals(2)
        self.markerEdit_2.setKeyboardTracking(False)
        self.markerEdit_2.setDisabled(True)
        self.markerEdit_2.setSingleStep(0.1)
        self.gridLayout.addWidget(self.markerEdit_2, 2, 2)

        self.markerLabel_3 = QtGui.QLabel(self.settingsBox)
        self.markerLabel_3.setAlignment(QtCore.Qt.AlignRight
                                        | QtCore.Qt.AlignTrailing
                                        | QtCore.Qt.AlignVCenter)
        self.gridLayout.addWidget(self.markerLabel_3, 3, 0)
        self.markerCheck_3 = QtGui.QCheckBox(self.settingsBox)
        self.gridLayout.addWidget(self.markerCheck_3, 3, 1)
        self.markerEdit_3 = QtGui.QDoubleSpinBox(self.settingsBox)
        self.markerEdit_3.setDecimals(2)
        self.markerEdit_3.setKeyboardTracking(False)
        self.markerEdit_3.setDisabled(True)
        self.markerEdit_3.setSingleStep(0.1)
        self.gridLayout.addWidget(self.markerEdit_3, 3, 2)

        self.markerLabel_4 = QtGui.QLabel(self.settingsBox)
        self.markerLabel_4.setAlignment(QtCore.Qt.AlignRight
                                        | QtCore.Qt.AlignTrailing
                                        | QtCore.Qt.AlignVCenter)
        self.gridLayout.addWidget(self.markerLabel_4, 4, 0)
        self.markerCheck_4 = QtGui.QCheckBox(self.settingsBox)
        self.gridLayout.addWidget(self.markerCheck_4, 4, 1)
        self.markerEdit_4 = QtGui.QDoubleSpinBox(self.settingsBox)
        self.markerEdit_4.setDecimals(2)
        self.markerEdit_4.setKeyboardTracking(False)
        self.markerEdit_4.setDisabled(True)
        self.markerEdit_4.setSingleStep(0.1)
        self.gridLayout.addWidget(self.markerEdit_4, 4, 2)

        self.deltaLabel = QtGui.QLabel(self.settingsBox)
        self.deltaLabel.setAlignment(QtCore.Qt.AlignRight
                                     | QtCore.Qt.AlignTrailing
                                     | QtCore.Qt.AlignVCenter)
        self.gridLayout.addWidget(self.deltaLabel, 1, 0)
        self.deltaCheck = QtGui.QCheckBox(self.settingsBox)
        self.gridLayout.addWidget(self.deltaCheck, 1, 1)
        self.deltaEdit = QtGui.QDoubleSpinBox(self.settingsBox)
        self.deltaEdit.setDecimals(2)
        self.deltaEdit.setSingleStep(0.1)
        self.deltaEdit.setKeyboardTracking(False)
        self.deltaEdit.setDisabled(True)
        self.gridLayout.addWidget(self.deltaEdit, 1, 2)
        self.deltaCheck.setDisabled(True)

        self.tab1 = QtGui.QWidget()
        self.settings_tabs.addTab(self.tab1, "Misc.")
        self.settings_tabs.widget(0).setLayout(self.verticalLayout_4)

        self.tab2 = QtGui.QWidget()
        self.settings_tabs.addTab(self.tab2, "Traces")
        self.settings_tabs.widget(1).setLayout(self.verticalLayout_5)

        self.tab3 = QtGui.QWidget()
        self.settings_tabs.addTab(self.tab3, "Markers")
        self.settings_tabs.widget(2).setLayout(self.gridLayout)

        self.horizontalLayout_2.addWidget(self.settingsBox)
        MainWindow.setCentralWidget(self.centralwidget)
        self.menubar = QtGui.QMenuBar(MainWindow)
        self.menubar.setGeometry(QtCore.QRect(0, 0, 847, 21))
        self.menubar.setObjectName(_fromUtf8("menubar"))
        MainWindow.setMenuBar(self.menubar)
        self.statusbar = QtGui.QStatusBar(MainWindow)
        self.statusbar.setObjectName(_fromUtf8("statusbar"))
        MainWindow.setStatusBar(self.statusbar)
        self.statusbar.addWidget(self.peakStatus)
        self.statusbar.setVisible(False)

        self.retranslateUi(MainWindow)
        QtCore.QMetaObject.connectSlotsByName(MainWindow)

        self.gainSlider.valueChanged.connect(self.gainDisp.display)
        self.saveButton.clicked.connect(self.savePlot)
Exemplo n.º 8
0
class ToftofProfileWindow(DlgUtils, QMainWindow):
    def __init__(self, parent):
        QMainWindow.__init__(self, parent)
        DlgUtils.__init__(self, 'Live data')
        self.panel = parent
        layout1 = QVBoxLayout()
        self.plot = QwtPlot(self)
        layout1.addWidget(self.plot)
        self.curve = QwtPlotCurve()
        self.curve.setRenderHint(QwtPlotCurve.RenderAntialiased)
        self.curve.attach(self.plot)
        self.marker = QwtPlotMarker()
        self.marker.attach(self.plot)
        self.markerpen = QPen(Qt.red)
        self.marker.setSymbol(
            QwtSymbol(QwtSymbol.Ellipse, QBrush(), self.markerpen, QSize(7,
                                                                         7)))
        self.zoomer = QwtPlotZoomer(self.plot.canvas())
        self.zoomer.setMousePattern(QwtPlotZoomer.MouseSelect3, Qt.NoButton)
        self.picker = QwtPlotPicker(self.plot.canvas())
        self.picker.setSelectionFlags(QwtPlotPicker.PointSelection
                                      | QwtPlotPicker.ClickSelection)
        self.picker.setMousePattern(QwtPlotPicker.MouseSelect1, Qt.MidButton)
        self.picker.selected.connect(self.pickerSelected)
        layout2 = QHBoxLayout()
        layout2.addWidget(QLabel('Scale:', self))
        self.scale = QComboBox(self)
        self.scale.addItems([
            'Single detectors, sorted by angle',
            'Scattering angle 2theta (deg)', 'Q value (A-1)'
        ])
        self.scale.currentIndexChanged[int].connect(self.scaleChanged)
        layout2.addWidget(self.scale)
        layout2.addStretch()
        self.scaleframe = QFrame(self)
        self.scaleframe.setLayout(layout2)
        self.scaleframe.setVisible(False)
        layout1.addWidget(self.scaleframe)
        mainframe = QFrame(self)
        mainframe.setLayout(layout1)
        self.setCentralWidget(mainframe)
        self.setContentsMargins(6, 6, 6, 6)
        plotfont = scaledFont(self.font(), 0.7)
        self.plot.setAxisFont(QwtPlot.xBottom, plotfont)
        self.plot.setAxisFont(QwtPlot.yLeft, plotfont)
        self.plot.setCanvasBackground(Qt.white)
        self.resize(800, 200)

        self._detinfo = None
        self._anglemap = None
        self._infowindow = None
        self._infolabel = None
        self._xs = self._ys = None
        self._type = None

    def _retrieve_detinfo(self):
        if self._detinfo is None:
            info = self.panel.client.eval(
                'det._detinfo_parsed, '
                'det._anglemap', None)
            if not info:
                return self.showError('Cannot retrieve detector info.')
            self._lambda = self.panel.client.eval('chWL()', None)
            if not self._lambda:
                return self.showError('Cannot retrieve wavelength.')
            self._detinfo, self._anglemap = info
            self._inverse_anglemap = 0
            self._infowindow = QMainWindow(self)
            self._infolabel = QLabel(self._infowindow)
            self._infolabel.setTextFormat(Qt.RichText)
            self._infowindow.setCentralWidget(self._infolabel)
            self._infowindow.setContentsMargins(10, 10, 10, 10)
            self._inv_anglemap = [[
                entry for entry in self._detinfo[1:]
                if entry[12] == self._anglemap[detnr] + 1
            ][0] for detnr in range(len(self._xs))]

    def scaleChanged(self, scale):
        self.update(self._type, self._orig_nbins, self._orig_x, self._orig_y)

    def update(self, proftype, nbins, x, y):
        self._orig_x = x
        self._orig_y = y
        self._orig_nbins = nbins
        x.setsize(8 * nbins)
        y.setsize(8 * nbins)
        xs = struct.unpack('d' * nbins, x)
        ys = struct.unpack('d' * nbins, y)
        if proftype == 0:
            if self.scale.currentIndex() == 0:
                xs = xs
            elif self.scale.currentIndex() == 1:
                self._retrieve_detinfo()
                xs = [self._inv_anglemap[int(xi)][5] for xi in xs]
            else:
                self._retrieve_detinfo()
                if self._lambda is None:
                    self.showError('Could not determine wavelength.')
                    self.scale.setCurrentIndex(1)
                    return
                xs = [
                    4 * pi / self._lambda *
                    sin(radians(self._inv_anglemap[int(xi)][5] / 2.))
                    for xi in xs
                ]
        self._xs = xs
        self._ys = ys
        self.curve.setData(xs, ys)
        self.plot.setAxisAutoScale(QwtPlot.xBottom)
        self.plot.setAxisAutoScale(QwtPlot.yLeft)
        self.marker.setVisible(False)
        self.zoomer.setZoomBase(True)
        self._type = proftype
        if proftype == 0:
            self.setWindowTitle(
                'Single detector view (time-channel integrated)')
            self.scaleframe.setVisible(True)
        elif proftype == 1:
            self.setWindowTitle('Time channel view (detector integrated)')
            self.scaleframe.setVisible(False)
        else:
            self.scaleframe.setVisible(False)

    def pickerSelected(self, point):
        if self._type != 0:
            return
        self._retrieve_detinfo()
        index = self.curve.closestPoint(self.picker.transform(point))[0]
        detentry = self._inv_anglemap[index][:]
        detentry.append(self._xs[index])
        detentry.append(self._ys[index])
        self.marker.setXValue(self._xs[index])
        self.marker.setYValue(self._ys[index])
        self.marker.setVisible(True)
        self.plot.replot()
        self._infowindow.show()
        entrynames = [
            'EntryNr', 'Rack', 'Plate', 'Pos', 'RPos', '2Theta', 'CableNr',
            'CableType', 'CableLen', 'CableEmpty', 'Card', 'Chan', 'Total',
            'DetName', 'BoxNr', 'BoxChan', 'XValue', 'Counts'
        ]
        formats = [
            '%s', '%d', '%d', '%d', '%d', '%.3f', '%d', '%d', '%.2f', '%d',
            '%d', '%d', '%d', '%r', '%d', '%d', '%s', '%d'
        ]
        empties = [1, 0, 0, 0, 1, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 1, 0, 0]
        self._infolabel.setText('Detector info:<br><table>' + ''.join(
            '<tr><td>%s</td><td></td><td>%s</td></tr>%s' %
            (name, format % value, '<tr></tr>' if empty else '')
            for (name, format, empty,
                 value) in zip(entrynames, formats, empties, detentry)) +
                                '</table>')

    def closeEvent(self, event):
        if self._infowindow:
            self._infowindow.close()
Exemplo n.º 9
0
 def __init__(self, canvas):
     QwtPlotPicker.__init__(
         self, xBottom, yRight, self.NoSelection, self.CrossRubberBand,
         self.AlwaysOn, canvas)
Exemplo n.º 10
0
    def changePlotWidget(self, library, frame_for_plot):
        if library == "Qwt5" and has_qwt:
            plotWdg = QwtPlot(frame_for_plot)
            sizePolicy = QSizePolicy(QSizePolicy.Expanding,
                                     QSizePolicy.Expanding)
            sizePolicy.setHorizontalStretch(0)
            sizePolicy.setVerticalStretch(0)
            sizePolicy.setHeightForWidth(
                plotWdg.sizePolicy().hasHeightForWidth())
            plotWdg.setSizePolicy(sizePolicy)
            plotWdg.setMinimumSize(QSize(0, 0))
            plotWdg.setAutoFillBackground(False)
            #Decoration
            plotWdg.setCanvasBackground(Qt.white)
            plotWdg.plotLayout().setAlignCanvasToScales(True)
            zoomer = QwtPlotZoomer(QwtPlot.xBottom, QwtPlot.yLeft,
                                   QwtPicker.DragSelection,
                                   QwtPicker.AlwaysOff, plotWdg.canvas())
            zoomer.setRubberBandPen(QPen(Qt.blue))
            if platform.system() != "Windows":
                # disable picker in Windows due to crashes
                picker = QwtPlotPicker(QwtPlot.xBottom, QwtPlot.yLeft,
                                       QwtPicker.NoSelection,
                                       QwtPlotPicker.CrossRubberBand,
                                       QwtPicker.AlwaysOn, plotWdg.canvas())
                picker.setTrackerPen(QPen(Qt.green))
            #self.dockwidget.qwtPlot.insertLegend(QwtLegend(), QwtPlot.BottomLegend);
            grid = Qwt.QwtPlotGrid()
            grid.setPen(QPen(QColor('grey'), 0, Qt.DotLine))
            grid.attach(plotWdg)
            return plotWdg
        elif library == "Matplotlib" and has_mpl:
            from matplotlib.figure import Figure
            from matplotlib.backends.backend_qt5agg import FigureCanvasQTAgg

            fig = Figure((1.0, 1.0),
                         linewidth=0.0,
                         subplotpars=matplotlib.figure.SubplotParams(left=0,
                                                                     bottom=0,
                                                                     right=1,
                                                                     top=1,
                                                                     wspace=0,
                                                                     hspace=0))

            font = {'family': 'arial', 'weight': 'normal', 'size': 12}
            matplotlib.rc('font', **font)

            rect = fig.patch
            rect.set_facecolor((0.9, 0.9, 0.9))

            self.subplot = fig.add_axes((0.07, 0.15, 0.92, 0.82))
            self.subplot.set_xbound(0, 1000)
            self.subplot.set_ybound(0, 1000)
            self.manageMatplotlibAxe(self.subplot)
            canvas = FigureCanvasQTAgg(fig)
            sizePolicy = QSizePolicy(QSizePolicy.Expanding,
                                     QSizePolicy.Expanding)
            sizePolicy.setHorizontalStretch(0)
            sizePolicy.setVerticalStretch(0)
            canvas.setSizePolicy(sizePolicy)
            return canvas
Exemplo n.º 11
0
class qwtchart(chart):
    colours = {'red'    : Qt.red,
               'green'  : Qt.green,
               'blue'   : Qt.blue,
               'yellow' : Qt.yellow,
               'magenta': Qt.magenta,
               'black'  : Qt.black}
    styles = {'-' : Qt.SolidLine,
              '--': Qt.DashLine,
              ':' : Qt.DotLine,
              '-.': Qt.DashDotLine}

    def getPen(self, colour, style):
        return QPen(self.colours[colour], 1, self.styles[style])

    def __init__(self, spurset, fef, parent):
        chart.__init__(self, spurset, fef, parent)
        self.plot = QwtPlot(parent)

        self.plot.setAxisScale(xaxis, self.spurset.RFmin,
                               self.spurset.RFmax)
        self.plot.setAxisScale(yaxis, -self.spurset.dspan/2,
                               self.spurset.dspan/2)

        self.plot.setCanvasBackground(Qt.white)
        grid = QwtPlotGrid()
        grid.setMajPen(QPen(Qt.black, 1, Qt.DotLine))
        grid.attach(self.plot)

        self.plot.insertLegend(QwtLegend(self.parent), QwtPlot.ExternalLegend)

        # a picker to be used for the front-end filter parallelogram
        self.picker = QwtPlotPicker(xaxis, yaxis,
                                    QwtPicker.PointSelection,
                                    QwtPlotPicker.NoRubberBand,
                                    QwtPicker.AlwaysOff,
                                    self.plot.canvas())
        # gonna need this to implement ondrop()
        self._mouseRelease = self.picker.widgetMouseReleaseEvent
        self._picked_obj = None

        self.picker.connect(self.picker, SIGNAL('appended(const QPoint&)'),
                            self.onpick)
        self.picker.connect(self.picker, SIGNAL('moved(const QPoint&)'),
                            self.ondrag)
        # all about the monkey-patching
        self.picker.widgetMouseReleaseEvent = self.ondrop

    def redraw(self):
        xscale = self.plot.axisScaleDiv(xaxis)
        yscale = self.plot.axisScaleDiv(yaxis)
        #TODO check if it hurts to just set the scales every time, as in mpl
        if (xscale.lowerBound() != self.spurset.RFmin or
            xscale.upperBound() != self.spurset.RFmax):
            self.plot.setAxisScale(xaxis, self.spurset.RFmin,
                                   self.spurset.RFmax)
        if (yscale.lowerBound() != -self.spurset.dspan/2 or
            yscale.upperBound() != self.spurset.dspan/2):
            self.plot.setAxisScale(yaxis, -self.spurset.dspan/2,
                                   self.spurset.dspan/2)
        self.plot.replot()

    def mkline(self, xdata, ydata, style=('black','-'), title=''):
        line = QwtPlotCurve(title)
        if title is '':
            # don't display it in the legend
            # kind of ugly, that the title variable is doing double duty
            line.setItemAttribute(QwtPlotItem.Legend, False)
        pen = self.getPen(*style)
        line.setPen(pen)
        line.setRenderHint(QwtPlotItem.RenderAntialiased)
        line.setData(xdata, ydata)
        return line

    def add_line(self, line):
        line.attach(self.plot)

    def del_line(self, line):
        line.detach()

    def legend(self):
        return self.plot.legend()

    def _xval(self, pos):
        # from a QPoint referring to a pixel on the plot, find the x value
        return self.plot.invTransform(xaxis, pos.x())

    def _yval(self, pos):
        # from a QPoint referring to a pixel on the plot, find the y value
        return self.plot.invTransform(yaxis, pos.y())

    def onpick(self, pos):
        # for now, we only worry about picking the two vertical lines of the
        # front-end filter parallelogram. Other clicks are no-ops.
        if abs(pos.x() - self.plot.transform(xaxis, self.fef.start)) <= 10:
            # TODO check pos.y() as well
            self._picked_obj = self.fef.startline
            self.pick(self.fef.startline, self._xval(pos), self._yval(pos))
        elif abs(pos.x() - self.plot.transform(xaxis, self.fef.stop)) <= 10:
            self._picked_obj  = self.fef.stopline
            self.pick(self.fef.stopline, self._xval(pos), self._yval(pos))
        else:
            return
        # TODO decide if a pick should also trigger a drag.
        # TODO this may be duplicated somewhere...
        self.ondrag(pos)

    def ondrag(self, pos):
        # no dragging action if we haven't already successfully picked something
        if self._picked_obj is not None:
            self.drag(self._picked_obj, self._xval(pos), self._yval(pos))

    def ondrop(self, evt):
        # need to make sure we're only triggering on left button releases
        if evt.button() == Qt.LeftButton and self._picked_obj is not None:
            self.drop(self._picked_obj, self._xval(evt), self._yval(evt))
            self._picked_obj = None
        # also important to let the original event handler happen
        self._mouseRelease(evt)
Exemplo n.º 12
0
    def setupUi(self, MainWindow):
        MainWindow.setObjectName(_fromUtf8("MainWindow"))
        MainWindow.resize(847, 480)
        self.centralwidget = QtGui.QWidget(MainWindow)
        self.centralwidget.setObjectName(_fromUtf8("centralwidget"))
        self.horizontalLayout_2 = QtGui.QHBoxLayout(self.centralwidget)
        self.horizontalLayout_2.setObjectName(_fromUtf8("horizontalLayout_2"))
        self.verticalLayout = QtGui.QVBoxLayout()
        self.verticalLayout.setObjectName(_fromUtf8("verticalLayout"))
        
        #Tworzenie zakładek
        self.tabs = QtGui.QTabWidget(self.centralwidget)        
        
        #Główny wykre
        self.plot = QwtPlot(self.centralwidget)
        self.plot.setObjectName(_fromUtf8("plot"))
        self.plot.setAxisScale(self.plot.yLeft, -20, 80)
        self.plot.setAutoFillBackground(True)
        #self.plot.setPalette(Qt.Qt.black)
        self.plot.setCanvasBackground(Qt.Qt.black)
        
        self.grid = QwtPlotGrid()
        '''self.Yscale = QwtScaleDiv()
        self.Yscale.setInterval(10)
        self.Xscale = QwtScaleDiv()
        self.Xscale.setInterval(10)
        self.grid.setYDiv(self.YScale)
        self.grid.setXDiv(self.Xscale)'''
        self.grid.setMajPen(Qt.Qt.gray)
        self.grid.attach(self.plot)
        
        self.tabs.addTab(self.plot, "Spectrum")
       
        self.curve = QwtPlotCurve('')
        self.curve.setPen(Qt.Qt.yellow)
        self.curve.attach(self.plot)
        
        self.hold_curve = QwtPlotCurve('')
        self.hold_curve.setPen(Qt.Qt.red)
        
        self.peak_marker = QwtPlotMarker()
        self.symbol = QwtSymbol(QwtSymbol.DTriangle, QtGui.QBrush(Qt.Qt.red), QtGui.QPen(Qt.Qt.red), QtCore.QSize(10,10))
        self.peak_marker.setSymbol(self.symbol)
        self.peak_marker.setLabelAlignment(Qt.Qt.AlignTop)
        
        self.sybmol_2 = QwtSymbol(QwtSymbol.DTriangle, QtGui.QBrush(Qt.Qt.red), QtGui.QPen(Qt.Qt.white), QtCore.QSize(10,10))
        self.marker_1 = QwtPlotMarker()
        self.marker_1.setSymbol(self.sybmol_2)
        self.marker_1.setLabelAlignment(Qt.Qt.AlignTop)
        self.marker_2 = QwtPlotMarker()
        self.marker_2.setSymbol(self.sybmol_2)
        self.marker_2.setLabelAlignment(Qt.Qt.AlignTop)
        self.marker_3 = QwtPlotMarker()
        self.marker_3.setSymbol(self.sybmol_2)
        self.marker_3.setLabelAlignment(Qt.Qt.AlignTop)
        self.marker_4 = QwtPlotMarker()
        self.marker_4.setSymbol(self.sybmol_2)
        self.marker_4.setLabelAlignment(Qt.Qt.AlignTop)
        self.delta_marker = QwtPlotMarker()
        self.delta_marker.setSymbol(self.sybmol_2)
        self.delta_marker.setLabelAlignment(Qt.Qt.AlignTop)
        
        self.markers = [self.marker_1, self.marker_2, self.marker_3, self.marker_4]
        
        self.save_curve_1 = QwtPlotCurve('')
        self.save_curve_1.setPen(Qt.Qt.green)
        self.save_curve_2 = QwtPlotCurve('')
        self.save_curve_2.setPen(Qt.Qt.cyan)
        self.save_curve_3 = QwtPlotCurve('')
        self.save_curve_3.setPen(Qt.Qt.magenta)
        self.saved_curves = [self.save_curve_1, self.save_curve_2, self.save_curve_3]
        
        #Wykres waterfall
        '''self.plot_2 = QwtPlot(self.centralwidget)
        self.plot_2.setObjectName(_fromUtf8("plot_2"))
        
        self.waterfall = QwtPlotSpectrogram()
        self.waterfall.attach(self.plot_2)
        
        self.colorMap = QwtLinearColorMap(Qt.Qt.darkCyan, Qt.Qt.red)
        self.scaleColors(80)
        self.waterfall.setColorMap(self.colorMap)
        #self.waterfallData = QwtRasterData()
        #self.tabs.addTab(self.plot_2, "Waterfall")'''
        
        self.verticalLayout.addWidget(self.tabs)
        
        self.picker = QwtPlotPicker(QwtPlot.xBottom, 
                                    QwtPlot.yLeft, 
                                    QwtPicker.PointSelection | QwtPicker.DragSelection,
                                    QwtPlotPicker.CrossRubberBand,
                                    QwtPicker.AlwaysOn,
                                    self.plot.canvas())
        self.picker.setTrackerPen(Qt.Qt.white)
        self.picker.setRubberBandPen(Qt.Qt.gray)
        
        self.freqBox = QtGui.QGroupBox(self.centralwidget)
        self.freqBox.setObjectName(_fromUtf8("freqBox"))
        self.verticalLayout_3 = QtGui.QVBoxLayout(self.freqBox)
        
        self.horizontalLayout = QtGui.QHBoxLayout()
        self.horizontalLayout.setObjectName(_fromUtf8("horizontalLayout"))
        
        self.formLayout_3 = QtGui.QFormLayout()
        self.formLayout_3.setObjectName(_fromUtf8("formLayout_3"))
        self.label = QtGui.QLabel(self.freqBox)
        self.label.setObjectName(_fromUtf8("label"))
        self.formLayout_3.setWidget(0, QtGui.QFormLayout.LabelRole, self.label)
        
        self.startEdit = QtGui.QDoubleSpinBox(self.freqBox)
        self.startEdit.setObjectName(_fromUtf8("startEdit"))
        self.startEdit.setDecimals(2)
        self.startEdit.setRange(1, 1280)
        self.startEdit.setKeyboardTracking(False)         
        self.formLayout_3.setWidget(0, QtGui.QFormLayout.FieldRole, self.startEdit)
        self.horizontalLayout.addLayout(self.formLayout_3)
        
        self.formLayout_4 = QtGui.QFormLayout()
        self.formLayout_4.setObjectName(_fromUtf8("formLayout_4"))
        self.label_2 = QtGui.QLabel(self.freqBox)
        self.label_2.setObjectName(_fromUtf8("label_2"))
        self.formLayout_4.setWidget(0, QtGui.QFormLayout.LabelRole, self.label_2)
        
        self.stopEdit = QtGui.QDoubleSpinBox(self.freqBox)
        self.stopEdit.setObjectName(_fromUtf8("stopEdit"))
        self.stopEdit.setDecimals(2)
        self.stopEdit.setRange(1, 1280)
        self.stopEdit.setKeyboardTracking(False)
        
        self.formLayout_4.setWidget(0, QtGui.QFormLayout.FieldRole, self.stopEdit)
        self.horizontalLayout.addLayout(self.formLayout_4)
        self.formLayout_5 = QtGui.QFormLayout()
        self.formLayout_5.setObjectName(_fromUtf8("formLayout_5"))
        self.label_3 = QtGui.QLabel(self.freqBox)
        self.label_3.setObjectName(_fromUtf8("label_3"))
        self.formLayout_5.setWidget(0, QtGui.QFormLayout.LabelRole, self.label_3)
        
        self.rbwEdit = QtGui.QComboBox(self.freqBox)
        self.rbwEdit.setObjectName(_fromUtf8("rbwEdit"))
        self.rbwEdit.addItem('0,21 kHz', 16384)
        self.rbwEdit.addItem('0,42 kHz', 8192)
        self.rbwEdit.addItem('0,84 kHz', 4096)
        self.rbwEdit.addItem('1,69 kHz', 2048)
        self.rbwEdit.addItem('3,38 kHz', 1024)
        self.rbwEdit.addItem('6,75 kHz', 512)
        self.rbwEdit.addItem('13,5 kHz', 256)
        self.rbwEdit.addItem('27 kHz', 128)
        self.rbwEdit.addItem('54 kHz', 64)
        self.rbwEdit.addItem('108 kHz', 32)
        self.rbwEdit.addItem('216 kHz', 16)
        self.rbwEdit.addItem('432 kHz', 8)
        self.rbwEdit.setCurrentIndex(4)
        
        
        self.formLayout_5.setWidget(0, QtGui.QFormLayout.FieldRole, self.rbwEdit)
        self.horizontalLayout.addLayout(self.formLayout_5)
        spacerItem = QtGui.QSpacerItem(40, 20, QtGui.QSizePolicy.Expanding, QtGui.QSizePolicy.Minimum)
        self.horizontalLayout.addItem(spacerItem)
        self.verticalLayout_3.addLayout(self.horizontalLayout)
        
        self.horizontalLayout_3 = QtGui.QHBoxLayout()
        self.horizontalLayout_3.setObjectName(_fromUtf8("horizontalLayout_3"))
        self.formLayout_7 = QtGui.QFormLayout()
        self.formLayout_7.setObjectName(_fromUtf8("formLayout_7"))
        self.centerLabel = QtGui.QLabel(self.freqBox)
        self.centerLabel.setObjectName(_fromUtf8("centerLabel"))
        self.formLayout_7.setWidget(0, QtGui.QFormLayout.LabelRole, self.centerLabel)
        
        self.centerEdit = QtGui.QDoubleSpinBox(self.freqBox)
        self.centerEdit.setObjectName(_fromUtf8("centerEdit"))
        self.centerEdit.setDecimals(2)
        self.centerEdit.setRange(1, 1280)
        self.centerEdit.setKeyboardTracking(False)         
        self.formLayout_7.setWidget(0, QtGui.QFormLayout.FieldRole, self.centerEdit)
        self.horizontalLayout_3.addLayout(self.formLayout_7)
        
        self.formLayout_8 = QtGui.QFormLayout()
        self.formLayout_8.setObjectName(_fromUtf8("formLayout_8"))
        self.spanLabel = QtGui.QLabel(self.freqBox)
        self.spanLabel.setObjectName(_fromUtf8("spanLabel"))
        self.formLayout_8.setWidget(0, QtGui.QFormLayout.LabelRole, self.spanLabel)
        
        self.spanEdit = QtGui.QDoubleSpinBox(self.freqBox)
        self.spanEdit.setObjectName(_fromUtf8("spanEdit"))
        self.spanEdit.setDecimals(2)
        self.spanEdit.setRange(0.1, 1280)
        self.spanEdit.setKeyboardTracking(False)         
        self.formLayout_8.setWidget(0, QtGui.QFormLayout.FieldRole, self.spanEdit)
        self.horizontalLayout_3.addLayout(self.formLayout_8)
        self.horizontalLayout_3.addItem(spacerItem)
        self.verticalLayout_3.addLayout(self.horizontalLayout_3)
        
        self.verticalLayout.addWidget(self.freqBox)
        self.horizontalLayout_2.addLayout(self.verticalLayout)
        
        self.settingsBox = QtGui.QGroupBox(self.centralwidget)
        self.settingsBox.setMaximumSize(QtCore.QSize(250, 16777215))
        self.settingsBox.setObjectName(_fromUtf8("settingsBox"))
        self.verticalLayout_2 = QtGui.QVBoxLayout(self.settingsBox)
        self.verticalLayout_2.setObjectName(_fromUtf8("verticalLayout_2"))
        
        self.formLayout = QtGui.QFormLayout()
        self.formLayout.setObjectName(_fromUtf8("formLayout"))
        self.gainLabel = QtGui.QLabel(self.settingsBox)
        self.gainLabel.setAlignment(QtCore.Qt.AlignRight|QtCore.Qt.AlignTrailing|QtCore.Qt.AlignVCenter)
        self.gainLabel.setObjectName(_fromUtf8("gainLabel"))
        self.formLayout.setWidget(0, QtGui.QFormLayout.LabelRole, self.gainLabel)
        self.gainSlider = QtGui.QSlider(self.settingsBox)
        self.gainSlider.setMaximum(49)
        self.gainSlider.setSingleStep(1)
        self.gainSlider.setProperty("value", 20)
        self.gainSlider.setOrientation(QtCore.Qt.Horizontal)
        self.gainSlider.setObjectName(_fromUtf8("gainSlider"))
        self.formLayout.setWidget(0, QtGui.QFormLayout.FieldRole, self.gainSlider)
        self.verticalLayout_2.addLayout(self.formLayout)
        
        self.gainDisp = QtGui.QLCDNumber(self.settingsBox)
        self.gainDisp.setSegmentStyle(QtGui.QLCDNumber.Flat)
        self.verticalLayout_2.addWidget(self.gainDisp)
        
        '''self.offsetButton = QtGui.QPushButton(self.settingsBox)
        self.offsetButton.setText("Remove DC offset")
        self.verticalLayout_2.addWidget(self.offsetButton)  ''' 
        
        self.formLayout_2 = QtGui.QFormLayout()
        self.formLayout_2.setObjectName(_fromUtf8("formLayout_2"))
        self.refLabel = QtGui.QLabel(self.settingsBox)
        self.refLabel.setAlignment(QtCore.Qt.AlignRight|QtCore.Qt.AlignTrailing|QtCore.Qt.AlignVCenter)
        self.refLabel.setObjectName(_fromUtf8("refLabel"))
        self.formLayout_2.setWidget(0, QtGui.QFormLayout.LabelRole, self.refLabel)        
        self.refEdit = QtGui.QDoubleSpinBox(self.settingsBox)
        self.refEdit.setObjectName(_fromUtf8("refEdit"))
        self.refEdit.setDecimals(0)
        self.refEdit.setKeyboardTracking(False)
        self.formLayout_2.setWidget(0, QtGui.QFormLayout.FieldRole, self.refEdit)
        self.verticalLayout_2.addLayout(self.formLayout_2) 
        
        spacerItem1 = QtGui.QSpacerItem(158, 304, QtGui.QSizePolicy.Minimum, QtGui.QSizePolicy.Expanding)
        self.verticalLayout_2.addItem(spacerItem1)
        
        
        #Settings tabs
        self.settings_tabs = QtGui.QTabWidget(self.settingsBox) 
        self.verticalLayout_2.addWidget(self.settings_tabs)
        
        self.verticalLayout_4 = QtGui.QVBoxLayout()
        self.saveButton = QtGui.QPushButton(self.settingsBox)
        self.saveButton.setText("Save plot")
        self.verticalLayout_4.addWidget(self.saveButton)          
        
        self.formLayout_9 = QtGui.QFormLayout()
        self.formLayout_9.setObjectName(_fromUtf8("formLayout_9"))
        self.avgLabel = QtGui.QLabel(self.settingsBox)
        self.avgLabel.setAlignment(QtCore.Qt.AlignRight|QtCore.Qt.AlignTrailing|QtCore.Qt.AlignVCenter)
        self.avgLabel.setObjectName(_fromUtf8("avgLabel"))
        self.formLayout_9.setWidget(0, QtGui.QFormLayout.LabelRole, self.avgLabel)  
        self.avgCheck = QtGui.QCheckBox(self.settingsBox) 
        self.formLayout_9.setWidget(0, QtGui.QFormLayout.FieldRole, self.avgCheck)
        self.verticalLayout_4.addLayout(self.formLayout_9)
        
        self.formLayout_10 = QtGui.QFormLayout()
        self.avgLabel_2 = QtGui.QLabel(self.settingsBox)
        self.avgLabel_2.setAlignment(QtCore.Qt.AlignRight|QtCore.Qt.AlignTrailing|QtCore.Qt.AlignVCenter)
        self.avgLabel_2.setObjectName(_fromUtf8("avgLabel_2"))
        self.formLayout_10.setWidget(0, QtGui.QFormLayout.LabelRole, self.avgLabel_2) 
        self.avgEdit = QtGui.QDoubleSpinBox(self.settingsBox)
        self.avgEdit.setDecimals(0)
        self.avgEdit.setRange(1, 100)
        self.avgEdit.setKeyboardTracking(False)
        self.avgEdit.setValue(10)
        self.formLayout_10.setWidget(0, QtGui.QFormLayout.FieldRole, self.avgEdit)
        self.verticalLayout_4.addLayout(self.formLayout_10)
         
        self.formLayout_6 = QtGui.QFormLayout()
        self.formLayout_6.setObjectName(_fromUtf8("formLayout_6"))
        self.holdLabel = QtGui.QLabel(self.settingsBox)
        self.holdLabel.setAlignment(QtCore.Qt.AlignRight|QtCore.Qt.AlignTrailing|QtCore.Qt.AlignVCenter)
        self.holdLabel.setObjectName(_fromUtf8("holdLabel"))
        self.formLayout_6.setWidget(0, QtGui.QFormLayout.LabelRole, self.holdLabel)                   
        self.holdCheck = QtGui.QCheckBox(self.settingsBox)  
        self.formLayout_6.setWidget(0, QtGui.QFormLayout.FieldRole, self.holdCheck)
        self.verticalLayout_4.addLayout(self.formLayout_6) 
        
        self.formLayout_11 = QtGui.QFormLayout()
        self.formLayout_11.setObjectName(_fromUtf8("formLayout_11"))
        self.peakLabel = QtGui.QLabel(self.settingsBox)
        self.peakLabel.setAlignment(QtCore.Qt.AlignRight|QtCore.Qt.AlignTrailing|QtCore.Qt.AlignVCenter)
        self.peakLabel.setObjectName(_fromUtf8("peakLabel"))
        self.formLayout_11.setWidget(0, QtGui.QFormLayout.LabelRole, self.peakLabel)                   
        self.peakCheck = QtGui.QCheckBox(self.settingsBox)  
        self.formLayout_11.setWidget(0, QtGui.QFormLayout.FieldRole, self.peakCheck)
        self.verticalLayout_4.addLayout(self.formLayout_11)
        
        self.peakStatus = QtGui.QLabel("Peak: ")        
        
        self.correctButton = QtGui.QPushButton(self.settingsBox)
        self.correctButton.setText("Correction")
        self.verticalLayout_4.addWidget(self.correctButton)
        
        self.verticalLayout_5 = QtGui.QVBoxLayout()
        self.traceButton = QtGui.QPushButton(self.settingsBox)
        self.traceButton.setText("Save trace 1")
        self.verticalLayout_5.addWidget(self.traceButton)    
        
        self.traceButton_2 = QtGui.QPushButton(self.settingsBox)
        self.traceButton_2.setText("Save trace 2")
        self.verticalLayout_5.addWidget(self.traceButton_2)  
        
        self.traceButton_3 = QtGui.QPushButton(self.settingsBox)
        self.traceButton_3.setText("Save trace 3")
        self.verticalLayout_5.addWidget(self.traceButton_3) 
        
        self.traces = [self.traceButton, self.traceButton_2, self.traceButton_3]        
        
        #MARKERS
        self.gridLayout = QtGui.QGridLayout()
        self.markerLabel = QtGui.QLabel(self.settingsBox)
        self.markerLabel.setAlignment(QtCore.Qt.AlignRight|QtCore.Qt.AlignTrailing|QtCore.Qt.AlignVCenter)
        self.gridLayout.addWidget(self.markerLabel, 0,0)        
        self.markerCheck = QtGui.QCheckBox(self.settingsBox)
        self.gridLayout.addWidget(self.markerCheck, 0,1)
        self.markerEdit = QtGui.QDoubleSpinBox(self.settingsBox)
        self.markerEdit.setDecimals(2)
        self.markerEdit.setKeyboardTracking(False)
        self.markerEdit.setDisabled(True)
        self.markerEdit.setSingleStep(0.1)
        self.gridLayout.addWidget(self.markerEdit, 0,2)
        
        self.markerLabel_2 = QtGui.QLabel(self.settingsBox)
        self.markerLabel_2.setAlignment(QtCore.Qt.AlignRight|QtCore.Qt.AlignTrailing|QtCore.Qt.AlignVCenter)
        self.gridLayout.addWidget(self.markerLabel_2, 2,0)        
        self.markerCheck_2 = QtGui.QCheckBox(self.settingsBox)
        self.gridLayout.addWidget(self.markerCheck_2, 2,1)
        self.markerEdit_2 = QtGui.QDoubleSpinBox(self.settingsBox)
        self.markerEdit_2.setDecimals(2)
        self.markerEdit_2.setKeyboardTracking(False)
        self.markerEdit_2.setDisabled(True)
        self.markerEdit_2.setSingleStep(0.1)
        self.gridLayout.addWidget(self.markerEdit_2, 2,2)
        
        self.markerLabel_3 = QtGui.QLabel(self.settingsBox)
        self.markerLabel_3.setAlignment(QtCore.Qt.AlignRight|QtCore.Qt.AlignTrailing|QtCore.Qt.AlignVCenter)
        self.gridLayout.addWidget(self.markerLabel_3, 3,0)        
        self.markerCheck_3 = QtGui.QCheckBox(self.settingsBox)
        self.gridLayout.addWidget(self.markerCheck_3, 3,1)
        self.markerEdit_3 = QtGui.QDoubleSpinBox(self.settingsBox)
        self.markerEdit_3.setDecimals(2)
        self.markerEdit_3.setKeyboardTracking(False)
        self.markerEdit_3.setDisabled(True)
        self.markerEdit_3.setSingleStep(0.1)
        self.gridLayout.addWidget(self.markerEdit_3, 3,2)
        
        self.markerLabel_4 = QtGui.QLabel(self.settingsBox)
        self.markerLabel_4.setAlignment(QtCore.Qt.AlignRight|QtCore.Qt.AlignTrailing|QtCore.Qt.AlignVCenter)
        self.gridLayout.addWidget(self.markerLabel_4, 4,0)        
        self.markerCheck_4 = QtGui.QCheckBox(self.settingsBox)
        self.gridLayout.addWidget(self.markerCheck_4, 4,1)
        self.markerEdit_4 = QtGui.QDoubleSpinBox(self.settingsBox)
        self.markerEdit_4.setDecimals(2)
        self.markerEdit_4.setKeyboardTracking(False)
        self.markerEdit_4.setDisabled(True)
        self.markerEdit_4.setSingleStep(0.1)
        self.gridLayout.addWidget(self.markerEdit_4, 4,2)
        
        self.deltaLabel = QtGui.QLabel(self.settingsBox)
        self.deltaLabel.setAlignment(QtCore.Qt.AlignRight|QtCore.Qt.AlignTrailing|QtCore.Qt.AlignVCenter)
        self.gridLayout.addWidget(self.deltaLabel, 1,0)        
        self.deltaCheck = QtGui.QCheckBox(self.settingsBox)
        self.gridLayout.addWidget(self.deltaCheck, 1,1)
        self.deltaEdit = QtGui.QDoubleSpinBox(self.settingsBox)
        self.deltaEdit.setDecimals(2)
        self.deltaEdit.setSingleStep(0.1)
        self.deltaEdit.setKeyboardTracking(False)
        self.deltaEdit.setDisabled(True)
        self.gridLayout.addWidget(self.deltaEdit, 1,2)
        self.deltaCheck.setDisabled(True)
        
        self.tab1 = QtGui.QWidget()
        self.settings_tabs.addTab(self.tab1, "Misc.")
        self.settings_tabs.widget(0).setLayout(self.verticalLayout_4)

        self.tab2 = QtGui.QWidget()
        self.settings_tabs.addTab(self.tab2, "Traces")  
        self.settings_tabs.widget(1).setLayout(self.verticalLayout_5)
        
        self.tab3 = QtGui.QWidget()
        self.settings_tabs.addTab(self.tab3, "Markers")
        self.settings_tabs.widget(2).setLayout(self.gridLayout)
        
        self.horizontalLayout_2.addWidget(self.settingsBox)
        MainWindow.setCentralWidget(self.centralwidget)
        self.menubar = QtGui.QMenuBar(MainWindow)
        self.menubar.setGeometry(QtCore.QRect(0, 0, 847, 21))
        self.menubar.setObjectName(_fromUtf8("menubar"))
        MainWindow.setMenuBar(self.menubar)
        self.statusbar = QtGui.QStatusBar(MainWindow)
        self.statusbar.setObjectName(_fromUtf8("statusbar"))
        MainWindow.setStatusBar(self.statusbar)
        self.statusbar.addWidget(self.peakStatus)
        self.statusbar.setVisible(False)

        self.retranslateUi(MainWindow)
        QtCore.QMetaObject.connectSlotsByName(MainWindow)
        
        self.gainSlider.valueChanged.connect(self.gainDisp.display)
        self.saveButton.clicked.connect(self.savePlot)
Exemplo n.º 13
0
 def __init__(self, canvas):
     QwtPlotPicker.__init__(self, xBottom, yRight, self.NoSelection,
                            self.CrossRubberBand, self.AlwaysOn, canvas)
Exemplo n.º 14
0
class qwtchart(chart):
    colours = {
        'red': Qt.red,
        'green': Qt.green,
        'blue': Qt.blue,
        'yellow': Qt.yellow,
        'magenta': Qt.magenta,
        'black': Qt.black
    }
    styles = {
        '-': Qt.SolidLine,
        '--': Qt.DashLine,
        ':': Qt.DotLine,
        '-.': Qt.DashDotLine
    }

    def getPen(self, colour, style):
        return QPen(self.colours[colour], 1, self.styles[style])

    def __init__(self, spurset, fef, parent):
        chart.__init__(self, spurset, fef, parent)
        self.plot = QwtPlot(parent)

        self.plot.setAxisScale(xaxis, self.spurset.RFmin, self.spurset.RFmax)
        self.plot.setAxisScale(yaxis, -self.spurset.dspan / 2,
                               self.spurset.dspan / 2)

        self.plot.setCanvasBackground(Qt.white)
        grid = QwtPlotGrid()
        grid.setMajPen(QPen(Qt.black, 1, Qt.DotLine))
        grid.attach(self.plot)

        self.plot.insertLegend(QwtLegend(self.parent), QwtPlot.ExternalLegend)

        # a picker to be used for the front-end filter parallelogram
        self.picker = QwtPlotPicker(xaxis, yaxis, QwtPicker.PointSelection,
                                    QwtPlotPicker.NoRubberBand,
                                    QwtPicker.AlwaysOff, self.plot.canvas())
        # gonna need this to implement ondrop()
        self._mouseRelease = self.picker.widgetMouseReleaseEvent
        self._picked_obj = None

        self.picker.connect(self.picker, SIGNAL('appended(const QPoint&)'),
                            self.onpick)
        self.picker.connect(self.picker, SIGNAL('moved(const QPoint&)'),
                            self.ondrag)
        # all about the monkey-patching
        self.picker.widgetMouseReleaseEvent = self.ondrop

    def redraw(self):
        xscale = self.plot.axisScaleDiv(xaxis)
        yscale = self.plot.axisScaleDiv(yaxis)
        #TODO check if it hurts to just set the scales every time, as in mpl
        if (xscale.lowerBound() != self.spurset.RFmin
                or xscale.upperBound() != self.spurset.RFmax):
            self.plot.setAxisScale(xaxis, self.spurset.RFmin,
                                   self.spurset.RFmax)
        if (yscale.lowerBound() != -self.spurset.dspan / 2
                or yscale.upperBound() != self.spurset.dspan / 2):
            self.plot.setAxisScale(yaxis, -self.spurset.dspan / 2,
                                   self.spurset.dspan / 2)
        self.plot.replot()

    def mkline(self, xdata, ydata, style=('black', '-'), title=''):
        line = QwtPlotCurve(title)
        if title is '':
            # don't display it in the legend
            # kind of ugly, that the title variable is doing double duty
            line.setItemAttribute(QwtPlotItem.Legend, False)
        pen = self.getPen(*style)
        line.setPen(pen)
        line.setRenderHint(QwtPlotItem.RenderAntialiased)
        line.setData(xdata, ydata)
        return line

    def add_line(self, line):
        line.attach(self.plot)

    def del_line(self, line):
        line.detach()

    def legend(self):
        return self.plot.legend()

    def _xval(self, pos):
        # from a QPoint referring to a pixel on the plot, find the x value
        return self.plot.invTransform(xaxis, pos.x())

    def _yval(self, pos):
        # from a QPoint referring to a pixel on the plot, find the y value
        return self.plot.invTransform(yaxis, pos.y())

    def onpick(self, pos):
        # for now, we only worry about picking the two vertical lines of the
        # front-end filter parallelogram. Other clicks are no-ops.
        if abs(pos.x() - self.plot.transform(xaxis, self.fef.start)) <= 10:
            # TODO check pos.y() as well
            self._picked_obj = self.fef.startline
            self.pick(self.fef.startline, self._xval(pos), self._yval(pos))
        elif abs(pos.x() - self.plot.transform(xaxis, self.fef.stop)) <= 10:
            self._picked_obj = self.fef.stopline
            self.pick(self.fef.stopline, self._xval(pos), self._yval(pos))
        else:
            return
        # TODO decide if a pick should also trigger a drag.
        # TODO this may be duplicated somewhere...
        self.ondrag(pos)

    def ondrag(self, pos):
        # no dragging action if we haven't already successfully picked something
        if self._picked_obj is not None:
            self.drag(self._picked_obj, self._xval(pos), self._yval(pos))

    def ondrop(self, evt):
        # need to make sure we're only triggering on left button releases
        if evt.button() == Qt.LeftButton and self._picked_obj is not None:
            self.drop(self._picked_obj, self._xval(evt), self._yval(evt))
            self._picked_obj = None
        # also important to let the original event handler happen
        self._mouseRelease(evt)