예제 #1
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    def __init__(self, parent):
        """  Initialization
        """
        # Instantiating matplotlib Figure
        self.fig = Figure()
        self.fig.patch.set_facecolor('white')

        # Initialize parent class and set parent
        super(Qt4MplPolarCanvas, self).__init__(self.fig)
        self.setParent(parent)

        # Set size policy to be able to expanding and resizable with frame
        FigureCanvas.setSizePolicy(self, QSizePolicy.Expanding, QSizePolicy.Expanding)
        FigureCanvas.updateGeometry(self)

        # set up axis/subplot (111) only for 2D
        self.axes = self.fig.add_subplot(111, polar=True)  # return: matplotlib.axes.AxesSubplot

        # general canvas setup
        self.fig.subplots_adjust(bottom=0.15)

        # plot management
        self._contourPlot = None

        # legend and color bar
        self._colorBar = None
        self._isLegendOn = False
        self._legendFontSize = 8

        return
예제 #2
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    def __init__(self, parent):
        """ Initialization
        """
        # Initialize parent
        super(MplGraphicsViewContourPlot, self).__init__(parent)

        # set up canvas
        self.figure = Figure()
        self.colorbar = None
        # self._myCanvas = Qt4Mpl2DCanvas(self.figure)
        self._myCanvas = FigureCanvas(self.figure)
        self._myToolBar = NavigationToolbar2(self._myCanvas, self)
        # self._myToolBar = MyNavigationToolbar(self._myCanvas, self)

        # state of operation
        self._isZoomed = False
        # X and Y limit with home button
        self._homeXYLimit = None

        self.ax = self.figure.add_subplot(111)

        # set up layout
        self._vBox = QVBoxLayout(self)
        # self._vBox.addWidget(self._myCanvas)
        self._vBox.addWidget(self._myCanvas)
        self._vBox.addWidget(self._myToolBar)

        self._arrowList = list()

        self._hasImage = False
예제 #3
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파일: canvas.py 프로젝트: Kvieta1990/addie
    def __init__(self, parent):
        self._driver = AddieDriver()
        # from mpl_toolkits.axes_grid1 import host_subplot
        # import mpl_toolkits.axisartist as AA
        # import matplotlib.pyplot as plt

        # Instantiating matplotlib Figure
        self.fig = Figure()
        self.fig.patch.set_facecolor('white')

        self.axes = self.fig.add_subplot(111, projection='mantid')
        self.fig.subplots_adjust(bottom=0.15)

        # Initialize parent class and set parent
        FigureCanvasQTAgg.__init__(self, self.fig)
        self.setParent(parent)

        # Set size policy to be able to expanding and resizable with frame
        FigureCanvasQTAgg.setSizePolicy(self, QSizePolicy.Expanding,
                                        QSizePolicy.Expanding)
        FigureCanvasQTAgg.updateGeometry(self)

        # Variables to manage all lines/subplot
        self._lineDict = {}
        self._lineIndex = 0

        # legend and color bar
        self._colorBar = None
        self._isLegendOn = False
        self._legendFontSize = 10
예제 #4
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    def __init__(self, parent=None):
        """
        Initialization
        :return:
        """
        #
        self._myParentWindow = parent

        # Initialize the figure
        self._myFigure = Figure()

        # Init canvas
        FigureCanvas.__init__(self, self._myFigure)
        FigureCanvas.setSizePolicy(self, QSizePolicy.Expanding, QSizePolicy.Expanding)
        FigureCanvas.updateGeometry(self)

        # Axes
        self._myAxes = Axes3D(self._myFigure)  # Canvas figure must be created for mouse rotation
        self.format_coord_org = self._myAxes.format_coord
        self._myAxes.format_coord = self.report_pixel

        # color
        self._colorMap = [0.5, 0.5, 0.5]

        # Others
        self._dataKey = 0
        self._dataDict = dict()

        # List of plots on canvas NOW
        self._currPlotList = list()
        self._currSurfaceList = list()  # [{"xx":,"yy:","val:"}]

        return
예제 #5
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    def __init__(self, parent=None):
        """
        Initialization
        :return:
        """
        #
        self._myParentWindow = parent

        # Initialize the figure
        self._myFigure = Figure()

        # Init canvas
        FigureCanvas.__init__(self, self._myFigure)
        FigureCanvas.setSizePolicy(self, QSizePolicy.Expanding,
                                   QSizePolicy.Expanding)
        FigureCanvas.updateGeometry(self)

        # Axes
        self._myAxes = Axes3D(
            self._myFigure)  # Canvas figure must be created for mouse rotation
        self.format_coord_org = self._myAxes.format_coord
        self._myAxes.format_coord = self.report_pixel

        # color
        self._colorMap = [0.5, 0.5, 0.5]

        # Others
        self._dataKey = 0
        self._dataDict = dict()

        # List of plots on canvas NOW
        self._currPlotList = list()
        self._currSurfaceList = list()  # [{"xx":,"yy:","val:"}]

        return
예제 #6
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    def __init__(self, parent):
        """  Initialization
        """
        # Instantiating matplotlib Figure
        self.fig = Figure()
        self.fig.patch.set_facecolor('white')

        self.axes = self.fig.add_subplot(
            111)  # return: matplotlib.axes.AxesSubplot

        # Initialize parent class and set parent
        FigureCanvas.__init__(self, self.fig)
        self.setParent(parent)

        # Set size policy to be able to expanding and resizable with frame
        FigureCanvas.setSizePolicy(self, QSizePolicy.Expanding,
                                   QSizePolicy.Expanding)
        FigureCanvas.updateGeometry(self)

        # legend and color bar
        self._colorBar = None

        # Buffer of data
        self._currentArray2D = None

        # image management data structure
        self._currIndex = 0
        self._imagePlotDict = dict()

        # image size
        self._xLimit = [0., 1.]
        self._yLimit = [0., 1.]

        return
예제 #7
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 def __init__(self, parent=None):
     super(SampleTransmissionCalculatorView, self).__init__(parent)
     self.setupUi(self)
     fig = Figure()
     self.axes = fig.add_subplot(111)
     self.plot_frame = FigureCanvas(fig)
     self.output_layout.replaceWidget(self.placeholder_widget,
                                      self.plot_frame)
     self.assistant_process = QtCore.QProcess(self)
     self.validation_label.setStyleSheet("QLabel { color : red; }")
     self.histogram_err.setStyleSheet("QLabel { color : red; }")
     self.chemical_formula_err.setStyleSheet("QLabel { color : red; }")
     self.density_err.setStyleSheet("QLabel { color : red; }")
     self.thickness_err.setStyleSheet("QLabel { color : red; }")
예제 #8
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    def __init__(self, context):
        super(subplot, self).__init__()
        self._context = context
        self.figure = Figure()
        self.figure.set_facecolor("none")
        self.canvas = FigureCanvas(self.figure)
        self._rm_window = None
        self._selector_window = None
        # update quick edit from tool bar
        self.canvas.mpl_connect("draw_event", self.draw_event_callback)

        self._ADSObserver = SubplotADSObserver(self)

        grid = QtWidgets.QGridLayout()
        # add toolbar
        self.toolbar = myToolbar(self.canvas, self)
        self.toolbar.update()
        grid.addWidget(self.toolbar, 0, 0)
        self.toolbar.setRmConnection(self._rm)
        self.toolbar.setRmSubplotConnection(self._rm_subplot)
        # add plot
        self.plot_objects = {}
        grid.addWidget(self.canvas, 1, 0)
        self.setLayout(grid)
예제 #9
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    def __init__(self, parent):
        """  Initialization
        """
        # Instantiating matplotlib Figure
        self.fig = Figure()
        self.fig.patch.set_facecolor('white')

        # initialization
        super(Qt4Mpl2DCanvas, self).__init__(self.fig)

        # set up axis/subplot (111) only for 2D
        self.axes = self.fig.add_subplot(
            111, polar=False)  # return: matplotlib.axes.AxesSubplot
        self.axes.set_aspect('auto')

        # plot management
        self._scatterPlot = None
        self._imagePlot = None

        # Initialize parent class and set parent
        FigureCanvas.__init__(self, self.fig)
        self.setParent(parent)

        # Set size policy to be able to expanding and resizable with frame
        FigureCanvas.setSizePolicy(self, QSizePolicy.Expanding,
                                   QSizePolicy.Expanding)
        FigureCanvas.updateGeometry(self)

        # Variables to manage all lines/subplot
        self._lineDict = {}
        self._lineIndex = 0

        # legend and color bar
        self._colorBar = None
        self._isLegendOn = False
        self._legendFontSize = 8

        return
예제 #10
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    def __init__(self, parent, row_size=None, col_size=None, rotate=False):
        """Initialization
        :param parent:
        :param row_size:
        :param col_size:
        """
        # Instantiating matplotlib Figure. It is a requirement to initialize a figure canvas
        self.fig = Figure()
        self.fig.patch.set_facecolor('white')

        # Initialize parent class and set parent
        super(Qt4MplCanvasMultiFigure, self).__init__(self.fig)
        self.setParent(parent)

        # Variables to manage all lines/subplot:  key = integer line ID, value = reference to line
        # default to 1 subplot at (0, 0)
        self._mainLineDict = dict()
        self._mainLineDict[0, 0] = dict()

        # right axes
        self._rightLineDict = dict()

        # line index: single index for both main and right plot
        self._lineIndex = 0

        # legend and color bar
        self._legendStatusDict = dict()
        self._legendRightStatusDict = dict()
        self._legendFontSize = 8

        # data structure for sub plots
        self._numSubPlots = 0
        self.axes_main = dict()  # keys are 2-tuple, starting from (0, 0)
        self.axes_right = dict()

        # the subplots are not set up in the initialization
        self.set_subplots(row_size=1, col_size=1, rotate=True)

        # Set size policy to be able to expanding and resizable with frame
        FigureCanvas.setSizePolicy(self, QSizePolicy.Expanding,
                                   QSizePolicy.Expanding)
        FigureCanvas.updateGeometry(self)

        self._is_rotated = rotate

        # prototype ...

        vec_x = np.arange(0, 150, 1)
        vec_y = np.sin(vec_x)  # * np.pi / 180.)

        # first of all, the base transformation of the data points is needed
        # base = pyplot.gca().transData
        if rotate:
            # base = self.axes_main[0, 0].transData
            # rot = transforms.Affine2D().rotate_deg(270)
            # output = self.axes_main[0, 0].plot(vec_x, vec_y, 'r--', transform=rot + base)
            output = self.axes_main[0, 0].plot(vec_y, vec_x)
        else:
            output = self.axes_main[0, 0].plot(vec_x, vec_y, 'r--')
        self.axes_main[0, 0].set_aspect('auto')

        self._curr_plot = output[0]

        #
        # print data
        # print vec_x
        # print vec_y
        #
        #
        #
        # # define transformed line
        # # line = pyplot.plot(data, 'r--', transform= rot + base)
        # # line = pyplot.plot(vec_x, vec_y)
        # line = pyplot.plot(vec_x, vec_y, 'r--', transform=rot + base)
        # # or alternatively, use:
        # # line.set_transform(rot + base)

        # pyplot.show()

        return
예제 #11
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    def __init__(self, parent=None):
        """ Initialization and set up
        """
        # Base class
        QMainWindow.__init__(self, parent)

        # Mantid configuration
        config = ConfigService.Instance()
        self._instrument = config["default.instrument"]

        # Central widget
        self.centralwidget = QWidget(self)

        # UI Window (from Qt Designer)
        self.ui = load_ui(__file__, 'MainWindow.ui', baseinstance=self)
        mpl_layout = QVBoxLayout()
        self.ui.graphicsView.setLayout(mpl_layout)
        self.fig = Figure()
        self.canvas = FigureCanvas(self.fig)
        self.ui.mainplot = self.fig.add_subplot(111, projection='mantid')
        mpl_layout.addWidget(self.canvas)

        # Do initialize plotting
        vecx, vecy, xlim, ylim = self.computeMock()

        self.mainline = self.ui.mainplot.plot(vecx, vecy, 'r-')

        leftx = [xlim[0], xlim[0]]
        lefty = [ylim[0], ylim[1]]
        self.leftslideline = self.ui.mainplot.plot(leftx, lefty, 'b--')
        rightx = [xlim[1], xlim[1]]
        righty = [ylim[0], ylim[1]]
        self.rightslideline = self.ui.mainplot.plot(rightx, righty, 'g--')
        upperx = [xlim[0], xlim[1]]
        uppery = [ylim[1], ylim[1]]
        self.upperslideline = self.ui.mainplot.plot(upperx, uppery, 'b--')
        lowerx = [xlim[0], xlim[1]]
        lowery = [ylim[0], ylim[0]]
        self.lowerslideline = self.ui.mainplot.plot(lowerx, lowery, 'g--')

        self.canvas.mpl_connect('button_press_event', self.on_mouseDownEvent)

        # Set up horizontal slide (integer) and string value
        self._leftSlideValue = 0
        self._rightSlideValue = 99

        self.ui.horizontalSlider.setRange(0, 100)
        self.ui.horizontalSlider.setValue(self._leftSlideValue)
        self.ui.horizontalSlider.setTracking(True)
        self.ui.horizontalSlider.setTickPosition(QSlider.NoTicks)
        self.ui.horizontalSlider.valueChanged.connect(self.move_leftSlider)

        self.ui.horizontalSlider_2.setRange(0, 100)
        self.ui.horizontalSlider_2.setValue(self._rightSlideValue)
        self.ui.horizontalSlider_2.setTracking(True)
        self.ui.horizontalSlider_2.setTickPosition(QSlider.NoTicks)
        self.ui.horizontalSlider_2.valueChanged.connect(self.move_rightSlider)

        # self.connect(self.ui.lineEdit_3, QtCore.SIGNAL("textChanged(QString)"),
        #         self.set_startTime)
        self.ui.lineEdit_3.setValidator(QDoubleValidator(self.ui.lineEdit_3))
        self.ui.pushButton_setT0.clicked.connect(self.set_startTime)
        # self.connect(self.ui.lineEdit_4, QtCore.SIGNAL("textChanged(QString)"),
        #         self.set_stopTime)
        self.ui.lineEdit_4.setValidator(QDoubleValidator(self.ui.lineEdit_4))
        self.ui.pushButton_setTf.clicked.connect(self.set_stopTime)

        # File loader
        self.scanEventWorkspaces()
        self.ui.pushButton_refreshWS.clicked.connect(self.scanEventWorkspaces)
        self.ui.pushButton_browse.clicked.connect(self.browse_File)
        self.ui.pushButton_load.clicked.connect(self.load_File)
        self.ui.pushButton_3.clicked.connect(self.use_existWS)

        # Set up time
        self.ui.lineEdit_3.setValidator(QDoubleValidator(self.ui.lineEdit_3))
        self.ui.lineEdit_4.setValidator(QDoubleValidator(self.ui.lineEdit_4))

        # Filter by time
        self.ui.pushButton_filterTime.clicked.connect(self.filterByTime)

        # Filter by log value
        self.ui.lineEdit_5.setValidator(QDoubleValidator(self.ui.lineEdit_5))
        self.ui.lineEdit_6.setValidator(QDoubleValidator(self.ui.lineEdit_6))
        self.ui.lineEdit_7.setValidator(QDoubleValidator(self.ui.lineEdit_7))
        self.ui.lineEdit_8.setValidator(QDoubleValidator(self.ui.lineEdit_8))
        self.ui.lineEdit_9.setValidator(QDoubleValidator(self.ui.lineEdit_9))

        self.ui.lineEdit_5.textChanged.connect(self.set_minLogValue)
        self.ui.lineEdit_6.textChanged.connect(self.set_maxLogValue)

        dirchangeops = ["Both", "Increase", "Decrease"]
        self.ui.comboBox_4.addItems(dirchangeops)

        logboundops = ["Centre", "Left"]
        self.ui.comboBox_5.addItems(logboundops)

        self.ui.pushButton_4.clicked.connect(self.plotLogValue)

        self.ui.pushButton_filterLog.clicked.connect(self.filterByLogValue)

        # Set up help button
        self.ui.helpBtn.clicked.connect(self.helpClicked)

        # Set up vertical slide
        self._upperSlideValue = 99
        self._lowerSlideValue = 0

        self.ui.verticalSlider.setRange(0, 100)
        self.ui.verticalSlider.setValue(self._upperSlideValue)
        self.ui.verticalSlider.setTracking(True)
        self.ui.verticalSlider.valueChanged.connect(self.move_upperSlider)

        self.ui.verticalSlider_2.setRange(0, 100)
        self.ui.verticalSlider_2.setValue(self._lowerSlideValue)
        self.ui.verticalSlider_2.setTracking(True)
        self.ui.verticalSlider_2.valueChanged.connect(self.move_lowerSlider)

        # Set up for filtering (advanced setup)
        self._tofcorrection = False
        self.ui.checkBox_fastLog.setChecked(False)
        self.ui.checkBox_filterByPulse.setChecked(False)
        self.ui.checkBox_from1.setChecked(False)
        self.ui.checkBox_groupWS.setChecked(True)

        self.ui.comboBox_tofCorr.currentIndexChanged.connect(self.showHideEi)
        self.ui.pushButton_refreshCorrWSList.clicked.connect(
            self._searchTableWorkspaces)

        self.ui.lineEdit_Ei.setValidator(QDoubleValidator(self.ui.lineEdit_Ei))

        self.ui.label_Ei.hide()
        self.ui.lineEdit_Ei.hide()
        self.ui.label_Ei_2.hide()
        self.ui.comboBox_corrWS.hide()
        self.ui.pushButton_refreshCorrWSList.hide()

        # Set up for workspaces
        self._dataWS = None
        self._sampleLogNames = []
        self._sampleLog = None

        # Side information
        self.ui.label_mean.hide()
        self.ui.label_meanvalue.hide()
        self.ui.label_avg.hide()
        self.ui.label_timeAvgValue.hide()
        self.ui.label_freq.hide()
        self.ui.label_freqValue.hide()
        self.ui.label_logname.hide()
        self.ui.label_lognamevalue.hide()
        self.ui.label_logsize.hide()
        self.ui.label_logsizevalue.hide()

        # Default
        self._defaultdir = os.getcwd()

        # register startup
        mantid.UsageService.registerFeatureUsage("Interface", "EventFilter",
                                                 False)
예제 #12
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class MainWindow(QMainWindow):
    """ Class of Main Window (top)
    """

    _errMsgWindow = None

    def __init__(self, parent=None):
        """ Initialization and set up
        """
        # Base class
        QMainWindow.__init__(self, parent)

        # Mantid configuration
        config = ConfigService.Instance()
        self._instrument = config["default.instrument"]

        # Central widget
        self.centralwidget = QWidget(self)

        # UI Window (from Qt Designer)
        self.ui = load_ui(__file__, 'MainWindow.ui', baseinstance=self)
        mpl_layout = QVBoxLayout()
        self.ui.graphicsView.setLayout(mpl_layout)
        self.fig = Figure()
        self.canvas = FigureCanvas(self.fig)
        self.ui.mainplot = self.fig.add_subplot(111, projection='mantid')
        mpl_layout.addWidget(self.canvas)

        # Do initialize plotting
        vecx, vecy, xlim, ylim = self.computeMock()

        self.mainline = self.ui.mainplot.plot(vecx, vecy, 'r-')

        leftx = [xlim[0], xlim[0]]
        lefty = [ylim[0], ylim[1]]
        self.leftslideline = self.ui.mainplot.plot(leftx, lefty, 'b--')
        rightx = [xlim[1], xlim[1]]
        righty = [ylim[0], ylim[1]]
        self.rightslideline = self.ui.mainplot.plot(rightx, righty, 'g--')
        upperx = [xlim[0], xlim[1]]
        uppery = [ylim[1], ylim[1]]
        self.upperslideline = self.ui.mainplot.plot(upperx, uppery, 'b--')
        lowerx = [xlim[0], xlim[1]]
        lowery = [ylim[0], ylim[0]]
        self.lowerslideline = self.ui.mainplot.plot(lowerx, lowery, 'g--')

        self.canvas.mpl_connect('button_press_event', self.on_mouseDownEvent)

        # Set up horizontal slide (integer) and string value
        self._leftSlideValue = 0
        self._rightSlideValue = 99

        self.ui.horizontalSlider.setRange(0, 100)
        self.ui.horizontalSlider.setValue(self._leftSlideValue)
        self.ui.horizontalSlider.setTracking(True)
        self.ui.horizontalSlider.setTickPosition(QSlider.NoTicks)
        self.ui.horizontalSlider.valueChanged.connect(self.move_leftSlider)

        self.ui.horizontalSlider_2.setRange(0, 100)
        self.ui.horizontalSlider_2.setValue(self._rightSlideValue)
        self.ui.horizontalSlider_2.setTracking(True)
        self.ui.horizontalSlider_2.setTickPosition(QSlider.NoTicks)
        self.ui.horizontalSlider_2.valueChanged.connect(self.move_rightSlider)

        # self.connect(self.ui.lineEdit_3, QtCore.SIGNAL("textChanged(QString)"),
        #         self.set_startTime)
        self.ui.lineEdit_3.setValidator(QDoubleValidator(self.ui.lineEdit_3))
        self.ui.pushButton_setT0.clicked.connect(self.set_startTime)
        # self.connect(self.ui.lineEdit_4, QtCore.SIGNAL("textChanged(QString)"),
        #         self.set_stopTime)
        self.ui.lineEdit_4.setValidator(QDoubleValidator(self.ui.lineEdit_4))
        self.ui.pushButton_setTf.clicked.connect(self.set_stopTime)

        # File loader
        self.scanEventWorkspaces()
        self.ui.pushButton_refreshWS.clicked.connect(self.scanEventWorkspaces)
        self.ui.pushButton_browse.clicked.connect(self.browse_File)
        self.ui.pushButton_load.clicked.connect(self.load_File)
        self.ui.pushButton_3.clicked.connect(self.use_existWS)

        # Set up time
        self.ui.lineEdit_3.setValidator(QDoubleValidator(self.ui.lineEdit_3))
        self.ui.lineEdit_4.setValidator(QDoubleValidator(self.ui.lineEdit_4))

        # Filter by time
        self.ui.pushButton_filterTime.clicked.connect(self.filterByTime)

        # Filter by log value
        self.ui.lineEdit_5.setValidator(QDoubleValidator(self.ui.lineEdit_5))
        self.ui.lineEdit_6.setValidator(QDoubleValidator(self.ui.lineEdit_6))
        self.ui.lineEdit_7.setValidator(QDoubleValidator(self.ui.lineEdit_7))
        self.ui.lineEdit_8.setValidator(QDoubleValidator(self.ui.lineEdit_8))
        self.ui.lineEdit_9.setValidator(QDoubleValidator(self.ui.lineEdit_9))

        self.ui.lineEdit_5.textChanged.connect(self.set_minLogValue)
        self.ui.lineEdit_6.textChanged.connect(self.set_maxLogValue)

        dirchangeops = ["Both", "Increase", "Decrease"]
        self.ui.comboBox_4.addItems(dirchangeops)

        logboundops = ["Centre", "Left"]
        self.ui.comboBox_5.addItems(logboundops)

        self.ui.pushButton_4.clicked.connect(self.plotLogValue)

        self.ui.pushButton_filterLog.clicked.connect(self.filterByLogValue)

        # Set up help button
        self.ui.helpBtn.clicked.connect(self.helpClicked)

        # Set up vertical slide
        self._upperSlideValue = 99
        self._lowerSlideValue = 0

        self.ui.verticalSlider.setRange(0, 100)
        self.ui.verticalSlider.setValue(self._upperSlideValue)
        self.ui.verticalSlider.setTracking(True)
        self.ui.verticalSlider.valueChanged.connect(self.move_upperSlider)

        self.ui.verticalSlider_2.setRange(0, 100)
        self.ui.verticalSlider_2.setValue(self._lowerSlideValue)
        self.ui.verticalSlider_2.setTracking(True)
        self.ui.verticalSlider_2.valueChanged.connect(self.move_lowerSlider)

        # Set up for filtering (advanced setup)
        self._tofcorrection = False
        self.ui.checkBox_fastLog.setChecked(False)
        self.ui.checkBox_filterByPulse.setChecked(False)
        self.ui.checkBox_from1.setChecked(False)
        self.ui.checkBox_groupWS.setChecked(True)

        self.ui.comboBox_tofCorr.currentIndexChanged.connect(self.showHideEi)
        self.ui.pushButton_refreshCorrWSList.clicked.connect(
            self._searchTableWorkspaces)

        self.ui.lineEdit_Ei.setValidator(QDoubleValidator(self.ui.lineEdit_Ei))

        self.ui.label_Ei.hide()
        self.ui.lineEdit_Ei.hide()
        self.ui.label_Ei_2.hide()
        self.ui.comboBox_corrWS.hide()
        self.ui.pushButton_refreshCorrWSList.hide()

        # Set up for workspaces
        self._dataWS = None
        self._sampleLogNames = []
        self._sampleLog = None

        # Side information
        self.ui.label_mean.hide()
        self.ui.label_meanvalue.hide()
        self.ui.label_avg.hide()
        self.ui.label_timeAvgValue.hide()
        self.ui.label_freq.hide()
        self.ui.label_freqValue.hide()
        self.ui.label_logname.hide()
        self.ui.label_lognamevalue.hide()
        self.ui.label_logsize.hide()
        self.ui.label_logsizevalue.hide()

        # Default
        self._defaultdir = os.getcwd()

        # register startup
        mantid.UsageService.registerFeatureUsage("Interface", "EventFilter",
                                                 False)

    def on_mouseDownEvent(self, event):
        """ Respond to pick up a value with mouse down event
        """
        x = event.xdata
        y = event.ydata

        if x is not None and y is not None:
            msg = "You've clicked on a bar with coords:\n %f, %f" % (x, y)
            QMessageBox.information(self, "Click!", msg)

    def computeMock(self):
        """ Compute vecx and vecy as mocking
        """
        x0 = 0.
        xf = 1.
        dx = 0.1

        vecx = []
        vecy = []

        x = x0
        while x < xf:
            y = 0.0
            vecx.append(x)
            vecy.append(y)
            x += dx

        xlim = [x0, xf]
        ylim = [-1., 1]

        return (vecx, vecy, xlim, ylim)

    def move_leftSlider(self):
        """ Re-setup left range line in figure.
        Triggered by a change in Qt Widget.  NO EVENT is required.
        """
        newx = self.ui.horizontalSlider.value()
        if newx <= self._rightSlideValue and newx != self._leftSlideValue:
            # Allowed value: move the value bar
            self._leftSlideValue = newx

            # Move the vertical line
            xlim = self.ui.mainplot.get_xlim()
            newx = xlim[0] + newx * (xlim[1] - xlim[0]) * 0.01
            leftx = [newx, newx]
            lefty = self.ui.mainplot.get_ylim()
            setp(self.leftslideline, xdata=leftx, ydata=lefty)
            self.canvas.draw()

            # Change value
            self.ui.lineEdit_3.setText(str(newx))

        else:
            # Reset the value to original value
            self.ui.horizontalSlider.setValue(self._leftSlideValue)

    def set_startTime(self):
        """ Set the starting time and left slide bar
        """
        inps = str(self.ui.lineEdit_3.text())
        info_msg = "Starting time = %s" % (inps)
        Logger("Filter_Events").information(info_msg)

        xlim = self.ui.mainplot.get_xlim()
        if inps == "":
            # Empty. Use default
            newtime0 = xlim[0]
        else:
            newtime0 = float(inps)

        # Convert to integer slide value
        ileftvalue = int((newtime0 - xlim[0]) / (xlim[1] - xlim[0]) * 100)
        debug_msg = "iLeftSlide = %s" % str(ileftvalue)
        Logger("Filter_Events").debug(debug_msg)

        # Skip if same as origina
        if ileftvalue == self._leftSlideValue:
            return

        # Set the value if out of range
        resetT = True
        if ileftvalue < 0:
            # Minimum value as 0
            ileftvalue = 0
        elif ileftvalue > self._rightSlideValue:
            # Maximum value as right slide value
            ileftvalue = self._rightSlideValue
        else:
            resetT = False

        if resetT is True:
            newtime0 = xlim[0] + ileftvalue * (xlim[1] - xlim[0]) * 0.01
        info_msg = 'Corrected iLeftSlide = {} (vs. right = {})'.format(
            ileftvalue, self._rightSlideValue)
        Logger("Filter_Events").information(info_msg)

        # Move the slide bar (left)
        self._leftSlideValue = ileftvalue

        # Move the vertical line
        leftx = [newtime0, newtime0]
        lefty = self.ui.mainplot.get_ylim()
        setp(self.leftslideline, xdata=leftx, ydata=lefty)
        self.canvas.draw()

        # Set the value to left slider
        self.ui.horizontalSlider.setValue(self._leftSlideValue)
        # Reset the value of line edit
        if resetT is True:
            self.ui.lineEdit_3.setText(str(newtime0))

    def move_rightSlider(self):
        """ Re-setup left range line in figure.
        Triggered by a change in Qt Widget.  NO EVENT is required.
        """
        newx = self.ui.horizontalSlider_2.value()
        if newx >= self._leftSlideValue and newx != self._rightSlideValue:
            # Allowed value: move the value bar
            self._rightSlideValue = newx

            xlim = self.ui.mainplot.get_xlim()
            newx = xlim[0] + newx * (xlim[1] - xlim[0]) * 0.01
            leftx = [newx, newx]
            lefty = self.ui.mainplot.get_ylim()
            setp(self.rightslideline, xdata=leftx, ydata=lefty)
            self.canvas.draw()

            # Change value
            self.ui.lineEdit_4.setText(str(newx))

        else:
            # Reset the value
            self.ui.horizontalSlider_2.setValue(self._rightSlideValue)

    def set_stopTime(self):
        """ Set the starting time and left slide bar
        """
        inps = str(self.ui.lineEdit_4.text())
        Logger("Filter_Events").information('Stopping time = {}'.format(inps))

        xlim = self.ui.mainplot.get_xlim()
        if inps == "":
            # Empty. Use default
            newtimef = xlim[1]
        else:
            # Parse
            newtimef = float(inps)

        # Convert to integer slide value
        irightvalue = int((newtimef - xlim[0]) / (xlim[1] - xlim[0]) * 100)
        Logger("Filter_Events").information(
            'iRightSlide = {}'.format(irightvalue))

        # Return if no change
        if irightvalue == self._rightSlideValue:
            return

        # Correct value
        resetT = True
        if irightvalue > 100:
            irightvalue = 100
        elif irightvalue < self._leftSlideValue:
            irightvalue = self._leftSlideValue
        else:
            resetT = False

        if resetT is True:
            newtimef = xlim[0] + irightvalue * (xlim[1] - xlim[0]) * 0.01

        # Move the slide bar (right)
        self._rightSlideValue = irightvalue

        # Move the vertical line
        rightx = [newtimef, newtimef]
        righty = self.ui.mainplot.get_ylim()
        setp(self.rightslideline, xdata=rightx, ydata=righty)
        self.canvas.draw()

        # Set the value to left slider
        self.ui.horizontalSlider_2.setValue(self._rightSlideValue)

        # Reset to line edit
        if resetT:
            self.ui.lineEdit_4.setText(str(newtimef))

    def move_lowerSlider(self):
        """ Re-setup upper range line in figure.
        Triggered by a change in Qt Widget.  NO EVENT is required.
        """
        inewy = self.ui.verticalSlider_2.value()
        debug_msg = 'LowerSlFider is set with value {} vs. class variable {}'.format(
            inewy, self._lowerSlideValue)
        Logger("Filter_Events").debug(debug_msg)

        # Return with no change
        if inewy == self._lowerSlideValue:
            # No change
            return

        if inewy >= self._upperSlideValue:
            # Out of upper range
            inewy = self._upperSlideValue - 1

        if inewy == 0 and self._lowerSlideValue < 0:
            setLineEdit = False
        else:
            setLineEdit = True

        # Move the lower vertical bar
        ylim = self.ui.mainplot.get_ylim()
        newy = ylim[0] + inewy * (ylim[1] - ylim[0]) * 0.01
        lowerx = self.ui.mainplot.get_xlim()
        lowery = [newy, newy]
        setp(self.lowerslideline, xdata=lowerx, ydata=lowery)
        self.canvas.draw()

        # Set line edit input
        if setLineEdit is True:
            # Change value to line edit (5)
            self.ui.lineEdit_5.setText(str(newy))
            # Reset the class variable
            self._lowerSlideValue = inewy

    def set_minLogValue(self):
        """ Set the starting time and left slide bar
        """
        debug_msg = 'Minimum Log Value = {}'.format(self.ui.lineEdit_5.text())
        Logger("Filter_Events").debug(debug_msg)

        ylim = self.ui.mainplot.get_ylim()

        if str(self.ui.lineEdit_5.text()) == "":
            # Empty. Default to minY
            newminY = ylim[0]
        else:
            # Non empty.  Parse
            newminY = float(self.ui.lineEdit_5.text())

        # Convert to integer slide value
        iminlogval = int((newminY - ylim[0]) / (ylim[1] - ylim[0]) * 100)
        Logger("Filter_Events").debug('ilowerSlide = {}'.format(iminlogval))

        # Return if no change
        if iminlogval == self._lowerSlideValue:
            return

        # Set value if out of range
        resetL = True
        if iminlogval >= self._upperSlideValue:
            iminlogval = self._upperSlideValue - 1
        else:
            resetL = False

        if resetL is True:
            newminY = ylim[0] + iminlogval * (ylim[1] - ylim[0]) * 0.01

        # Move the vertical line
        lowerx = self.ui.mainplot.get_xlim()
        lowery = [newminY, newminY]
        setp(self.lowerslideline, xdata=lowerx, ydata=lowery)
        self.canvas.draw()

        # Move the slide bar (lower)
        self._lowerSlideValue = iminlogval
        debug_msg = 'LineEdit5 set slide to {}'.format(self._lowerSlideValue)
        Logger("Filter_Events").debug(debug_msg)
        self.ui.verticalSlider_2.setValue(self._lowerSlideValue)

        # Reset line Edit if using default
        if resetL is True:
            self.ui.lineEdit_5.setText(str(newminY))

    def move_upperSlider(self):
        """ Re-setup upper range line in figure.
        Triggered by a change in Qt Widget.  NO EVENT is required.
        """
        inewy = self.ui.verticalSlider.value()

        # Return w/o change
        if inewy == self._upperSlideValue:
            return

        # Set to boundary value
        if inewy <= self._lowerSlideValue:
            inewy = self._lowerSlideValue + 1

        # Reset line editor?
        if inewy == 100 and self._upperSlideValue > 100:
            setLineEdit = False
        else:
            setLineEdit = True

        # Move the upper value bar: upperx and uppery are
        # real value (float but not (0,100)) of the figure
        ylim = self.ui.mainplot.get_ylim()
        newy = ylim[0] + inewy * (ylim[1] - ylim[0]) * 0.01
        upperx = self.ui.mainplot.get_xlim()
        uppery = [newy, newy]
        setp(self.upperslideline, xdata=upperx, ydata=uppery)
        self.canvas.draw()

        # Change value
        if setLineEdit is True:
            self.ui.lineEdit_6.setText(str(newy))
            self._upperSlideValue = inewy

    def set_maxLogValue(self):
        """ Set maximum log value from line-edit
        """
        inps = str(self.ui.lineEdit_6.text())
        debug_msg = 'Maximum Log Value = {}'.format(inps)
        Logger("Filter_Events").debug(debug_msg)

        ylim = self.ui.mainplot.get_ylim()
        if inps == "":
            # Empty. Default to minY
            newmaxY = ylim[1]
        else:
            # Parse
            newmaxY = float(inps)

        # Convert to integer slide value
        imaxlogval = int((newmaxY - ylim[0]) / (ylim[1] - ylim[0]) * 100)
        debug_msg = 'iUpperSlide = {}'.format(imaxlogval)
        Logger("Filter_Events").debug(debug_msg)

        # Return if no change
        if imaxlogval == self._upperSlideValue:
            return

        # Set to default if out of range
        resetL = True
        # if imaxlogval >= 100:
        #     imaxlogval = 100
        if imaxlogval < self._lowerSlideValue:
            imaxlogval = self._lowerSlideValue + 1
        else:
            resetL = False

        # Set newmaxY if necessary
        if resetL is True:
            newmaxY = ylim[0] + imaxlogval * (ylim[1] - ylim[0]) * 0.01

        # Move the vertical line
        upperx = self.ui.mainplot.get_xlim()
        uppery = [newmaxY, newmaxY]
        setp(self.upperslideline, xdata=upperx, ydata=uppery)
        self.canvas.draw()

        # Set the value to upper slider
        self._upperSlideValue = imaxlogval
        self.ui.verticalSlider.setValue(self._upperSlideValue)

        # Set the value to editor if necessary
        if resetL is True:
            self.ui.lineEdit_6.setText(str(newmaxY))

    def browse_File(self):
        """ Open a file dialog to get file
        """
        filename = QFileDialog.getOpenFileName(
            self, 'Input File Dialog', self._defaultdir,
            "Data (*.nxs *.dat);;All files (*)")
        if isinstance(filename, tuple):
            filename = filename[0]

        self.ui.lineEdit.setText(filename)

        Logger("Filter_Events").information(
            'Selected file: "{}"'.format(filename))

    def load_File(self):
        """ Load the file by file name or run number
        """
        # Get file name from line editor
        filename = str(self.ui.lineEdit.text())

        dataws = self._loadFile(str(filename))
        if dataws is None:
            error_msg = 'Unable to locate run {} in default directory {}.'.format(
                filename, self._defaultdir)
            Logger("Filter_Events").error(error_msg)
            self._setErrorMsg(error_msg)
        else:
            self._importDataWorkspace(dataws)
            self._defaultdir = os.path.dirname(str(filename))

        # Reset GUI
        self._resetGUI(resetfilerun=False)

    def use_existWS(self):
        """ Set up workspace to an existing one
        """
        wsname = str(self.ui.comboBox.currentText())

        try:
            dataws = AnalysisDataService.retrieve(wsname)
            self._importDataWorkspace(dataws)
        except KeyError:
            pass

        # Reset GUI
        self._resetGUI(resetfilerun=True)

    def plotLogValue(self):
        """ Plot log value
        """
        # Get log value
        logname = str(self.ui.comboBox_2.currentText())
        if len(logname) == 0:
            # return due to the empty one is chozen
            return

        samplelog = self._dataWS.getRun().getProperty(logname)
        vectimes = samplelog.times
        vecvalue = samplelog.value

        # check
        if len(vectimes) == 0:
            error_msg = "Empty log!"
            Logger("Filter_Events").error(error_msg)

        # Convert absolute time to relative time in seconds
        t0 = self._dataWS.getRun().getProperty("proton_charge").times[0]

        # append 1 more log if original log only has 1 value
        tf = self._dataWS.getRun().getProperty("proton_charge").times[-1]
        vectimes = numpy.append(vectimes, tf)
        vecvalue = numpy.append(vecvalue, vecvalue[-1])

        vecreltimes = (vectimes - t0) / numpy.timedelta64(1, 's')

        # Set to plot
        xlim = [vecreltimes.min(), vecreltimes.max()]
        ylim = [vecvalue.min(), vecvalue.max()]
        self.ui.mainplot.set_xlim(xlim[0], xlim[1])
        self.ui.mainplot.set_ylim(ylim[0], ylim[1])

        setp(self.mainline, xdata=vecreltimes, ydata=vecvalue)

        samunit = samplelog.units
        if len(samunit) == 0:
            ylabel = logname
        else:
            ylabel = "%s (%s)" % (logname, samunit)
        self.ui.mainplot.set_ylabel(ylabel, fontsize=13)

        # assume that all logs are on almost same X-range.  Only Y need to be reset
        setp(self.leftslideline, ydata=ylim)
        setp(self.rightslideline, ydata=ylim)

        # reset the log value limit as previous one does not make any sense
        setp(self.lowerslideline, xdata=xlim, ydata=[ylim[0], ylim[0]])
        self._lowerSlideValue = 0
        self.ui.verticalSlider_2.setValue(self._lowerSlideValue)
        self.ui.lineEdit_5.setText("")

        setp(self.upperslideline, xdata=xlim, ydata=[ylim[1], ylim[1]])
        self._upperSlideValue = 100
        self.ui.verticalSlider.setValue(self._upperSlideValue)
        self.ui.lineEdit_6.setText("")
        self.canvas.draw()

        # Load property's statistic and give suggestion on parallel and fast log
        timeavg = samplelog.timeAverageValue()
        numentries = samplelog.size()
        stat = samplelog.getStatistics()

        duration = stat.duration
        mean = stat.mean
        freq = float(numentries) / float(duration)

        self.ui.label_mean.show()
        self.ui.label_meanvalue.show()
        self.ui.label_avg.show()
        self.ui.label_timeAvgValue.show()
        self.ui.label_freq.show()
        self.ui.label_freqValue.show()
        self.ui.label_logname.show()
        self.ui.label_lognamevalue.show()
        self.ui.label_logsize.show()
        self.ui.label_logsizevalue.show()

        self.ui.label_meanvalue.setText("%.5e" % (mean))
        self.ui.label_timeAvgValue.setText("%.5e" % (timeavg))
        self.ui.label_freqValue.setText("%.5e" % (freq))
        self.ui.label_lognamevalue.setText(logname)
        self.ui.label_logsizevalue.setText(str(numentries))

        # Set suggested processing scheme
        if numentries > HUGE_FAST:
            self.ui.checkBox_fastLog.setCheckState(True)
            if numentries > HUGE_PARALLEL:
                self.ui.checkBox_doParallel.setCheckState(True)
            else:
                self.ui.checkBox_doParallel.setCheckState(False)
        else:
            self.ui.checkBox_fastLog.setCheckState(False)
            self.ui.checkBox_doParallel.setCheckState(False)

        return

    def _importDataWorkspace(self, dataws):
        """ Import data workspace for filtering
        """
        if dataws is None:
            return

        # Plot time counts
        errmsg = self._plotTimeCounts(dataws)
        if errmsg is not None:
            errmsg = 'Workspace {} has invalid sample logs for splitting. Loading \
                    failure! \n{}\n'.format(dataws, errmsg)
            self._setErrorMsg(errmsg)
            return False

        # Import log
        self._sampleLogNames = [""]

        run = dataws.getRun()
        plist = run.getProperties()
        for p in plist:
            try:
                times = p.times
                if len(times) > 1 and numpy.isreal(p.value[0]):
                    self._sampleLogNames.append(p.name)
            # This is here for FloatArrayProperty. If a log value is of this type it does not have times
            except AttributeError:
                pass
        # ENDFOR(p)

        # Set up sample log
        self.ui.comboBox_2.clear()
        self.ui.comboBox_2.addItems(self._sampleLogNames)

        # Side information
        self.ui.label_mean.hide()
        self.ui.label_meanvalue.hide()
        self.ui.label_avg.hide()
        self.ui.label_timeAvgValue.hide()
        self.ui.label_freq.hide()
        self.ui.label_freqValue.hide()

        # Hide 'log name' above the graphic view
        self.ui.label_logname.hide()
        self.ui.label_lognamevalue.hide()

        # Set dataws to class variable
        self._dataWS = dataws

        return True

    def scanEventWorkspaces(self):
        """
        """
        wsnames = AnalysisDataService.getObjectNames()

        eventwsnames = []
        for wsname in wsnames:
            wksp = AnalysisDataService.retrieve(wsname)
            if wksp.__class__.__name__.count("Event") == 1:
                eventwsnames.append(wsname)
        # ENDFOR

        if len(eventwsnames) > 0:
            self.ui.comboBox.clear()
            self.ui.comboBox.addItems(eventwsnames)

    def _loadFile(self, filename):
        """ Load file or run
        File will be loaded to a workspace shown in MantidPlot
        """
        config = ConfigService

        # Check input file name and output workspace name
        if filename.isdigit() is True:
            # Construct a file name from run number
            runnumber = int(filename)
            if runnumber <= 0:
                error_msg = 'Run number cannot be less or equal to zero.  User gives {}.'.format(
                    filename)
                Logger("Filter_Events").error(error_msg)
                return None
            else:
                ishort = config.getInstrument(self._instrument).shortName()
                filename = '{}_{}'.format(ishort, filename)
                wsname = filename + "_event"

        elif filename.count(".") > 0:
            # A proper file name
            wsname = os.path.splitext(os.path.split(filename)[1])[0]

        elif filename.count("_") == 1:
            # A short one as instrument_runnumber
            iname = filename.split("_")[0]
            str_runnumber = filename.split("_")[1]
            if str_runnumber.isdigit() is True and int(str_runnumber) > 0:
                # Accepted format
                ishort = config.getInstrument(iname).shortName()
                wsname = '{}_{}_event'.format(ishort, str_runnumber)
            else:
                # Non-supported
                error_msg = 'File name / run number in such format {} is not supported.'.format(
                    filename)
                Logger("Filter_Events").error(error_msg)

                return None

        else:
            # Unsupported format
            error_msg = 'File name / run number in such format {} is not supported.'.format(
                filename)
            Logger("Filter_Events").error(error_msg)

            return None

        # Load
        try:
            ws = api.Load(Filename=filename, OutputWorkspace=wsname)
        except RuntimeError as e:
            ws = None
            return str(e)

        return ws

    def _plotTimeCounts(self, wksp):
        """ Plot time/counts
        """
        import datetime
        # Rebin events by pulse time
        try:
            # Get run start and run stop
            if wksp.getRun().hasProperty("run_start"):
                runstart = wksp.getRun().getProperty("run_start").value
            else:
                runstart = wksp.getRun().getProperty("proton_charge").times[0]
            runstop = wksp.getRun().getProperty("proton_charge").times[-1]

            runstart = str(runstart).split(".")[0].strip()
            runstop = str(runstop).split(".")[0].strip()

            t0 = datetime.datetime.strptime(runstart, "%Y-%m-%dT%H:%M:%S")
            tf = datetime.datetime.strptime(runstop, "%Y-%m-%dT%H:%M:%S")

            # Calculate
            dt = tf - t0
            timeduration = dt.days * 3600 * 24 + dt.seconds

            timeres = float(timeduration) / MAXTIMEBINSIZE
            if timeres < 1.0:
                timeres = 1.0

            sumwsname = '_Summed_{}'.format(wksp)
            if AnalysisDataService.doesExist(sumwsname) is False:
                sumws = api.SumSpectra(InputWorkspace=wksp,
                                       OutputWorkspace=sumwsname)
                sumws = api.RebinByPulseTimes(InputWorkspace=sumws,
                                              OutputWorkspace=sumwsname,
                                              Params='{}'.format(timeres))
                sumws = api.ConvertToPointData(InputWorkspace=sumws,
                                               OutputWorkspace=sumwsname)
            else:
                sumws = AnalysisDataService.retrieve(sumwsname)
        except RuntimeError as e:
            return str(e)

        vecx = sumws.readX(0)
        vecy = sumws.readY(0)

        xmin = min(vecx)
        xmax = max(vecx)
        ymin = min(vecy)
        ymax = max(vecy)

        # Reset graph
        self.ui.mainplot.set_xlim(xmin, xmax)
        self.ui.mainplot.set_ylim(ymin, ymax)

        self.ui.mainplot.set_xlabel('Time (seconds)', fontsize=13)
        self.ui.mainplot.set_ylabel('Counts', fontsize=13)

        # Set up main line
        setp(self.mainline, xdata=vecx, ydata=vecy)

        # Reset slide
        newslidery = [min(vecy), max(vecy)]

        newleftx = xmin + (xmax - xmin) * self._leftSlideValue * 0.01
        setp(self.leftslideline, xdata=[newleftx, newleftx], ydata=newslidery)

        newrightx = xmin + (xmax - xmin) * self._rightSlideValue * 0.01
        setp(self.rightslideline,
             xdata=[newrightx, newrightx],
             ydata=newslidery)
        self.canvas.draw()

    def filterByTime(self):
        """ Filter by time
        """
        # Generate event filters
        kwargs = {}
        if self.ui.lineEdit_3.text() != "":
            rel_starttime = float(self.ui.lineEdit_3.text())
            kwargs["StartTime"] = str(rel_starttime)
        if self.ui.lineEdit_4.text() != "":
            rel_stoptime = float(self.ui.lineEdit_4.text())
            kwargs["StopTime"] = str(rel_stoptime)
        if self.ui.lineEdit_timeInterval.text() != "":
            interval = float(self.ui.lineEdit_timeInterval.text())
            kwargs["TimeInterval"] = interval

        splitwsname = str(self._dataWS) + "_splitters"
        splitinfowsname = str(self._dataWS) + "_info"

        title = str(self.ui.lineEdit_title.text())
        fastLog = self.ui.checkBox_fastLog.isChecked()

        splitws, infows = api.GenerateEventsFilter(
            InputWorkspace=self._dataWS,
            UnitOfTime="Seconds",
            TitleOfSplitters=title,
            OutputWorkspace=splitwsname,
            FastLog=fastLog,
            InformationWorkspace=splitinfowsname,
            **kwargs)

        self.splitWksp(splitws, infows)

    def filterByLogValue(self):
        """ Filter by log value
        """
        # Generate event filter
        kwargs = {}
        samplelog = str(self.ui.comboBox_2.currentText())
        if len(samplelog) == 0:
            error_msg = "No sample log is selected!"
            Logger("Filter_Events").error(error_msg)
            return

        if self.ui.lineEdit_3.text() != "":
            rel_starttime = float(self.ui.lineEdit_3.text())
            kwargs["StartTime"] = str(rel_starttime)

        if self.ui.lineEdit_4.text() != "":
            rel_stoptime = float(self.ui.lineEdit_4.text())
            kwargs["StopTime"] = str(rel_stoptime)

        if self.ui.lineEdit_5.text() != "":
            minlogvalue = float(self.ui.lineEdit_5.text())
            kwargs["MinimumLogValue"] = minlogvalue

        if self.ui.lineEdit_6.text() != "":
            maxlogvalue = float(self.ui.lineEdit_6.text())
            kwargs["MaximumLogValue"] = maxlogvalue

        if self.ui.lineEdit_7.text() != "":
            logvalueintv = float(self.ui.lineEdit_7.text())
            kwargs["LogValueInterval"] = logvalueintv
        logvalchangedir = str(self.ui.comboBox_4.currentText())
        kwargs["FilterLogValueByChangingDirection"] = logvalchangedir

        if self.ui.lineEdit_9.text() != "":
            logvalueintv = float(self.ui.lineEdit_9.text())
            kwargs["TimeTolerance"] = logvalueintv
        logboundtype = str(self.ui.comboBox_5.currentText())
        kwargs["LogBoundary"] = logboundtype

        if self.ui.lineEdit_8.text() != "":
            logvaluetol = float(self.ui.lineEdit_8.text())
            kwargs["LogValueTolerance"] = logvaluetol

        splitwsname = str(self._dataWS) + "_splitters"
        splitinfowsname = str(self._dataWS) + "_info"
        fastLog = self.ui.checkBox_fastLog.isChecked()

        title = str(self.ui.lineEdit_title.text())

        splitws, infows = api.GenerateEventsFilter(
            InputWorkspace=self._dataWS,
            UnitOfTime="Seconds",
            TitleOfSplitters=title,
            OutputWorkspace=splitwsname,
            LogName=samplelog,
            FastLog=fastLog,
            InformationWorkspace=splitinfowsname,
            **kwargs)

        try:
            self.splitWksp(splitws, infows)
        except RuntimeError as e:
            self._setErrorMsg("Splitting Failed!\n %s" % (str(e)))

    def splitWksp(self, splitws, infows):
        """ Run FilterEvents
        """
        dogroupws = self.ui.checkBox_groupWS.isChecked()
        filterbypulse = self.ui.checkBox_filterByPulse.isChecked()
        startfrom1 = self.ui.checkBox_from1.isChecked()
        splitsamplelog = self.ui.checkBox_splitLog.isChecked()

        corr2sample = str(self.ui.comboBox_tofCorr.currentText())
        how2skip = str(self.ui.comboBox_skipSpectrum.currentText())

        kwargs = {}
        if corr2sample == "Direct":
            ei = float(self.ui.lineEdit_Ei.text())
            kwargs["IncidentEnergy"] = ei
        elif corr2sample == "Customized":
            corrws = str(self.ui.comboBox_corrWS.currentText())
            kwargs["DetectorTOFCorrectionWorkspace"] = corrws

        # Output workspace name
        outbasewsname = str(self.ui.lineEdit_outwsname.text())
        if len(outbasewsname) == 0:
            outbasewsname = "tempsplitted"
            self.ui.lineEdit_outwsname.setText(outbasewsname)

        api.FilterEvents(InputWorkspace=self._dataWS,
                         SplitterWorkspace=splitws,
                         InformationWorkspace=infows,
                         OutputWorkspaceBaseName=outbasewsname,
                         GroupWorkspaces=dogroupws,
                         FilterByPulseTime=filterbypulse,
                         CorrectionToSample=corr2sample,
                         SpectrumWithoutDetector=how2skip,
                         SplitSampleLogs=splitsamplelog,
                         OutputWorkspaceIndexedFrom1=startfrom1,
                         OutputTOFCorrectionWorkspace='TOFCorrTable',
                         **kwargs)

    def showHideEi(self):
        """
        """
        corrtype = str(self.ui.comboBox_tofCorr.currentText())

        # Incident energy
        if corrtype == "Direct":
            self.ui.label_Ei.show()
            self.ui.lineEdit_Ei.show()
        else:
            self.ui.label_Ei.hide()
            self.ui.lineEdit_Ei.hide()

        # Workspace
        if corrtype == "Customized":
            self.ui.label_Ei_2.show()
            self.ui.comboBox_corrWS.show()
            self.ui.pushButton_refreshCorrWSList.show()

            # Search for table workspace
            self._searchTableWorkspaces()

        else:
            self.ui.label_Ei_2.hide()
            self.ui.comboBox_corrWS.hide()
            self.ui.pushButton_refreshCorrWSList.hide()

    def _searchTableWorkspaces(self):
        """ Search table workspaces and add to 'comboBox_corrWS'
        """
        wsnames = AnalysisDataService.getObjectNames()

        tablewsnames = []
        for wsname in wsnames:
            wksp = AnalysisDataService.retrieve(wsname)
            if isinstance(wksp, mantid.api.ITableWorkspace):
                tablewsnames.append(wsname)
        # ENDFOR

        self.ui.comboBox_corrWS.clear()
        if len(tablewsnames) > 0:
            self.ui.comboBox_corrWS.addItems(tablewsnames)

    def _setErrorMsg(self, errmsg):
        """ Clear error message
        """
        self._errMsgWindow = QMessageBox()
        self._errMsgWindow.setIcon(QMessageBox.Critical)
        self._errMsgWindow.setWindowTitle('Error')
        self._errMsgWindow.setStandardButtons(QMessageBox.Ok)
        self._errMsgWindow.setText(errmsg)
        result = self._errMsgWindow.exec_()

        return result

    def helpClicked(self):
        try:
            from pymantidplot.proxies import showCustomInterfaceHelp
            showCustomInterfaceHelp("Filter Events")
        except ImportError:
            url = ("http://docs.mantidproject.org/nightly/interfaces/{}.html"
                   "".format("Filter Events"))
            QDesktopServices.openUrl(QUrl(url))

    def _resetGUI(self, resetfilerun=False):
        """ Reset GUI including all text edits and etc.
        """
        if resetfilerun is True:
            self.ui.lineEdit.clear()

        # Plot related
        self.ui.lineEdit_3.clear()
        self.ui.lineEdit_4.clear()
        self.ui.horizontalSlider.setValue(0)
        self.ui.horizontalSlider_2.setValue(100)

        self.ui.lineEdit_outwsname.clear()
        self.ui.lineEdit_title.clear()

        # Filter by log value
        self.ui.lineEdit_5.clear()
        self.ui.lineEdit_6.clear()

        self.ui.verticalSlider_2.setValue(0)
        self.ui.verticalSlider.setValue(100)

        ylim = self.ui.mainplot.get_ylim()
        miny = ylim[0]
        maxy = ylim[1]
        xlim = self.ui.mainplot.get_xlim()
        setp(self.lowerslideline, xdata=xlim, ydata=[miny, miny])
        setp(self.upperslideline, xdata=xlim, ydata=[maxy, maxy])

        self.ui.lineEdit_7.clear()
        self.ui.lineEdit_8.clear()
        self.ui.lineEdit_9.clear()

        # Filter by time
        self.ui.lineEdit_timeInterval.clear()

        # Advanced setup
        self.ui.comboBox_tofCorr.setCurrentIndex(0)
        self.ui.lineEdit_Ei.clear()

        self.ui.checkBox_fastLog.setCheckState(False)
        self.ui.checkBox_doParallel.setCheckState(False)

        self.ui.comboBox_skipSpectrum.setCurrentIndex(0)

        self.ui.checkBox_filterByPulse.setCheckState(False)
        self.ui.checkBox_from1.setCheckState(False)
        self.ui.checkBox_groupWS.setCheckState(True)
        self.ui.checkBox_splitLog.setCheckState(False)

        self.canvas.draw()
예제 #13
0
class subplot(QtWidgets.QWidget):
    signal_quick_edit = QtCore.Signal(object)
    signal_rm_subplot = QtCore.Signal(object)
    signal_rm_line = QtCore.Signal(object)

    def __init__(self, context):
        super(subplot, self).__init__()
        self._context = context
        self.figure = Figure()
        self.figure.set_facecolor("none")
        self.canvas = FigureCanvas(self.figure)
        self._rm_window = None
        self._selector_window = None
        # update quick edit from tool bar
        self.canvas.mpl_connect("draw_event", self.draw_event_callback)

        self._ADSObserver = SubplotADSObserver(self)

        grid = QtWidgets.QGridLayout()
        # add toolbar
        self.toolbar = myToolbar(self.canvas, self)
        self.toolbar.update()
        grid.addWidget(self.toolbar, 0, 0)
        self.toolbar.setRmConnection(self._rm)
        self.toolbar.setRmSubplotConnection(self._rm_subplot)
        # add plot
        self.plot_objects = {}
        grid.addWidget(self.canvas, 1, 0)
        self.setLayout(grid)

    """ this is called when the zoom
    or pan are used. We want to send a
    signal to update the axis ranges """

    def draw_event_callback(self, event):
        self.figure.tight_layout()
        for subplot in self.plot_objects.keys():
            self.emit_subplot_range(subplot)

    def add_annotate(self, subplotName, label):
        if subplotName not in self._context.subplots.keys():
            return
        self._context.add_annotate(subplotName, label)
        self.canvas.draw()

    def add_vline(self, subplot_name, xvalue, name, color):
        if subplot_name not in self._context.subplots.keys():
            return
        self._context.add_vline(subplot_name, xvalue, name, color)
        self.canvas.draw()

    def rm_annotate(self, subplot_name, name):
        if subplot_name not in self._context.subplots.keys():
            return
        self._context.removeLabel(subplot_name, name)
        self.canvas.draw()

    def rm_vline(self, subplot_name, name):
        if subplot_name not in self._context.subplots.keys():
            return
        self._context.removeVLine(subplot_name, name)
        self.canvas.draw()

    # plot a workspace, if a new subplot create it.
    def plot(self, subplot_name, workspace, color=None, spec_num=1):
        new = False
        if subplot_name not in self._context.subplots.keys():
            self.add_subplot(subplot_name, len(list(self.plot_objects.keys())))
            new = True
        self._add_plotted_line(subplot_name,
                               workspace,
                               spec_num=spec_num,
                               color=color)
        if new:
            self.emit_subplot_range(subplot_name)

    def change_errors(self, state, subplot_names):
        for subplotName in subplot_names:
            self._context.subplots[subplotName].change_errors(state)
            self.canvas.draw()

    # adds plotted line to context and updates GUI
    def _add_plotted_line(self, subplot_name, workspace, spec_num, color=None):
        """ Appends plotted lines to the related subplot list. """
        self._context.addLine(subplot_name, workspace, spec_num, color=color)
        self.canvas.draw()

    def add_subplot(self, subplot_name, number):
        self._context.update_gridspec(number + 1)
        gridspec = self._context.gridspec
        self.plot_objects[subplot_name] = self.figure.add_subplot(
            gridspec[number], label=subplot_name, projection='mantid')
        self.plot_objects[subplot_name].set_title(subplot_name)
        self._context.addSubplot(subplot_name, self.plot_objects[subplot_name])
        self._update()

    def _update(self):
        self._context.update_layout(self.figure)
        self.canvas.draw()

    def emit_subplot_range(self, subplot_name):
        self.signal_quick_edit.emit(subplot_name)
        self._context.subplots[subplot_name].redraw_annotations()

    def set_plot_x_range(self, subplot_names, range):
        for subplotName in subplot_names:
            # make a set method in context and set it there
            self.plot_objects[subplotName].set_xlim(range)
            self._context.subplots[subplotName].redraw_annotations()
            self.canvas.draw()

    def set_plot_y_range(self, subplot_names, y_range):
        for subplotName in subplot_names:
            self.plot_objects[subplotName].set_ylim(y_range)
            self._context.subplots[subplotName].redraw_annotations()
            self.canvas.draw()

    def connect_quick_edit_signal(self, slot):
        self.signal_quick_edit.connect(slot)

    def disconnect_quick_edit_signal(self):
        self.signal_quick_edit.disconnect()

    def connect_rm_subplot_signal(self, slot):
        self.signal_rm_subplot.connect(slot)

    def disconnect_rm_subplot_signal(self):
        self.signal_rm_subplot.disconnect()

    def connect_rm_line_signal(self, slot):
        self.signal_rm_line.connect(slot)

    def disconnect_rm_line_signal(self):
        self.signal_rm_line.disconnect()

    def set_y_autoscale(self, subplot_names, state):
        for subplotName in subplot_names:
            self._context.subplots[subplotName].change_auto(state)
            self.canvas.draw()

    def _rm(self):
        names = list(self._context.subplots.keys())
        if len(names) == 1:
            if self._rm_window is not None:
                self._rm_window.show()
            else:
                self._get_rm_window(names[0])
        else:
            if self._rm_window is not None:
                self._rm_window.close()
                self._rm_window = None
            self._close_selector_window()

            self._selector_window = self._create_select_window(names)
            self._selector_window.subplotSelectorSignal.connect(
                self._get_rm_window)
            self._selector_window.closeEventSignal.connect(
                self._close_selector_window)
            self._selector_window.setMinimumSize(300, 100)
            self._selector_window.show()

    def _rm_subplot(self):
        names = list(self._context.subplots.keys())
        # If the selector is hidden then close it
        self._close_selector_window()

        self._selector_window = self._create_select_window(names)
        self._selector_window.subplotSelectorSignal.connect(
            self._remove_subplot)
        self._selector_window.subplotSelectorSignal.connect(
            self._close_selector_window)
        self._selector_window.closeEventSignal.connect(
            self._close_selector_window)
        self._selector_window.setMinimumSize(300, 100)
        self._selector_window.show()

    def _create_select_window(self, names):
        return SelectSubplot(names)

    def _close_selector_window(self):
        if self._selector_window is not None:
            self._selector_window.close()
            self._selector_window = None

    def _create_rm_window(self, subplot_name):
        line_names = list(self._context.subplots[subplot_name].lines.keys())
        vline_names = self._context.subplots[subplot_name].vlines
        return RemovePlotWindow(lines=line_names,
                                vlines=vline_names,
                                subplot=subplot_name,
                                parent=self)

    def _get_rm_window(self, subplot_name):
        # always close selector after making a selection
        self._close_selector_window()
        # create the remove window
        self._rm_window = self._create_rm_window(subplot_name=subplot_name)
        self._rm_window.applyRemoveSignal.connect(self._apply_rm)
        self._rm_window.closeEventSignal.connect(self._close_rm_window)
        self._rm_window.setMinimumSize(200, 200)
        self._rm_window.show()

    def remove_lines(self, subplot_name, line_names):
        # remove the lines from the subplot
        for name in line_names:
            self._context.subplots[subplot_name].removeLine(name)

        self.signal_rm_line.emit([str(name) for name in line_names])

        # if all of the lines have been removed -> delete subplot
        if not self._context.get_lines(subplot_name):
            self._remove_subplot(subplot_name)
        else:
            self.canvas.draw()

    def _apply_rm(self, line_names):
        to_close = []
        for name in line_names:
            if self._rm_window.getState(name):
                to_close.append(name)

        self.remove_lines(self._rm_window.subplot, to_close)
        self._close_rm_window()

    def _close_rm_window(self):
        self._rm_window.close
        self._rm_window = None

    def _remove_subplot(self, subplot_name):
        self.figure.delaxes(self.plot_objects[subplot_name])
        del self.plot_objects[subplot_name]
        self._context.delete(subplot_name)
        self._context.update_gridspec(len(list(self.plot_objects.keys())))
        self._update()
        self.signal_rm_subplot.emit(subplot_name)

    def _rm_ws_from_plots(self, workspace_name):
        keys = deepcopy(list(self._context.subplots.keys()))
        for subplot in keys:
            labels = self._context.get_lines_from_WS(subplot, workspace_name)
            for label in labels:
                self._context.removePlotLine(subplot, label)
                self.canvas.draw()
            if self._context.is_subplot_empty(subplot):
                self._remove_subplot(subplot)

    def _replaced_ws(self, workspace):
        for subplot in self._context.subplots.keys():
            redraw = self._context.subplots[subplot].replace_ws(workspace)
            if redraw:
                self.canvas.draw()
예제 #14
0
class SampleTransmissionCalculatorView(QtWidgets.QWidget,
                                       Ui_sample_transmission):
    def __init__(self, parent=None):
        super(SampleTransmissionCalculatorView, self).__init__(parent)
        self.setupUi(self)
        fig = Figure()
        self.axes = fig.add_subplot(111)
        self.plot_frame = FigureCanvas(fig)
        self.output_layout.replaceWidget(self.placeholder_widget,
                                         self.plot_frame)
        self.assistant_process = QtCore.QProcess(self)
        self.validation_label.setStyleSheet("QLabel { color : red; }")
        self.histogram_err.setStyleSheet("QLabel { color : red; }")
        self.chemical_formula_err.setStyleSheet("QLabel { color : red; }")
        self.density_err.setStyleSheet("QLabel { color : red; }")
        self.thickness_err.setStyleSheet("QLabel { color : red; }")

    def get_input_dict(self):
        input_dict = {
            'binning_type': self.binning_type_combo_box.currentIndex(),
            'single_low': self.single_low_spin_box.value(),
            'single_width': self.single_width_spin_box.value(),
            'single_high': self.single_high_spin_box.value(),
            'multiple_bin': self.multiple_line_edit.text(),
            'chemical_formula': self.chemical_formula_line_edit.text(),
            'density_type': self.density_combo_box.currentText(),
            'density': self.density_spin_box.value(),
            'thickness': self.thickness_spin_box.value()
        }
        return input_dict

    def set_output_table(self, output_dict, statistics):
        self.results_tree.clear()
        scattering_item = QtWidgets.QTreeWidgetItem()
        scattering_item.setText(0, 'Scattering')
        scattering_item.setText(1, str(statistics))
        self.results_tree.addTopLevelItem(scattering_item)

        transmission_item = QtWidgets.QTreeWidgetItem()
        transmission_item.setText(0, "Transmission")
        self.results_tree.addTopLevelItem(transmission_item)
        transmission_item.setExpanded(True)

        for key in output_dict:
            item = QtWidgets.QTreeWidgetItem()
            item.setText(0, key)
            item.setText(1, str(output_dict[key]))
            transmission_item.addChild(item)

    def plot(self, x, y):
        self.axes.cla()
        self.axes.plot(x, y)
        self.plot_frame.figure.tight_layout()
        self.plot_frame.draw()

    def set_validation_label(self, warning_text=''):
        self.validation_label.setText(warning_text)

    def clear_error_indicator(self):
        self.histogram_err.setText('')
        self.chemical_formula_err.setText('')
        self.density_err.setText('')
        self.thickness_err.setText('')

    def set_error_indicator(self, error_key):
        getattr(self, error_key + '_err').setText('*')
예제 #15
0
    def __init__(self, parent=None, window_flags=None):
        """ Initialization and set up
        """
        # Base class
        QMainWindow.__init__(self, parent)

        if window_flags:
            self.setWindowFlags(window_flags)

        # Mantid configuration
        config = ConfigService.Instance()
        self._instrument = config["default.instrument"]

        # Central widget
        self.centralwidget = QWidget(self)

        # UI Window (from Qt Designer)
        self.ui = load_ui(__file__, 'MainWindow.ui', baseinstance=self)
        mpl_layout = QVBoxLayout()
        self.ui.graphicsView.setLayout(mpl_layout)
        self.fig = Figure()
        self.canvas = FigureCanvas(self.fig)
        self.ui.mainplot = self.fig.add_subplot(111, projection='mantid')
        mpl_layout.addWidget(self.canvas)

        # Do initialize plotting
        vecx, vecy, xlim, ylim = self.computeMock()

        self.mainline = self.ui.mainplot.plot(vecx, vecy, 'r-')

        leftx = [xlim[0], xlim[0]]
        lefty = [ylim[0], ylim[1]]
        self.leftslideline = self.ui.mainplot.plot(leftx, lefty, 'b--')
        rightx = [xlim[1], xlim[1]]
        righty = [ylim[0], ylim[1]]
        self.rightslideline = self.ui.mainplot.plot(rightx, righty, 'g--')
        upperx = [xlim[0], xlim[1]]
        uppery = [ylim[1], ylim[1]]
        self.upperslideline = self.ui.mainplot.plot(upperx, uppery, 'b--')
        lowerx = [xlim[0], xlim[1]]
        lowery = [ylim[0], ylim[0]]
        self.lowerslideline = self.ui.mainplot.plot(lowerx, lowery, 'g--')

        self.canvas.mpl_connect('button_press_event', self.on_mouseDownEvent)

        # Set up horizontal slide (integer) and string value
        self._leftSlideValue = 0
        self._rightSlideValue = 99

        self.ui.horizontalSlider.setRange(0, 100)
        self.ui.horizontalSlider.setValue(self._leftSlideValue)
        self.ui.horizontalSlider.setTracking(True)
        self.ui.horizontalSlider.setTickPosition(QSlider.NoTicks)
        self.ui.horizontalSlider.valueChanged.connect(self.move_leftSlider)

        self.ui.horizontalSlider_2.setRange(0, 100)
        self.ui.horizontalSlider_2.setValue(self._rightSlideValue)
        self.ui.horizontalSlider_2.setTracking(True)
        self.ui.horizontalSlider_2.setTickPosition(QSlider.NoTicks)
        self.ui.horizontalSlider_2.valueChanged.connect(self.move_rightSlider)

        self.ui.lineEdit_3.editingFinished.connect(self.set_startTime)
        self.ui.pushButton_setT0.clicked.connect(self.set_startTime)
        self.ui.lineEdit_4.editingFinished.connect(self.set_stopTime)
        self.ui.pushButton_setTf.clicked.connect(self.set_stopTime)

        # File loader
        self.scanEventWorkspaces()
        self.ui.pushButton_refreshWS.clicked.connect(self.scanEventWorkspaces)
        self.ui.pushButton_browse.clicked.connect(self.browse_File)
        self.ui.pushButton_load.clicked.connect(self.load_File)
        self.ui.pushButton_3.clicked.connect(self.use_existWS)

        # validates any number, but does not accept comma, contrary to QDoubleValidator
        # this way, it is possible to cast to float without checking for stray commas.
        regexp = QRegExp("[-+]?((\d+\.?\d*)|(\.\d+))(e[-+]?\d+)?")  # noqa
        # noqa because flake is not happy about regex escape sequences

        regexp_val = QRegExpValidator(regexp, self)

        # Set up time
        self.ui.lineEdit_3.setValidator(regexp_val)
        self.ui.lineEdit_4.setValidator(regexp_val)

        # Filter by time
        self.ui.pushButton_filterTime.clicked.connect(self.filterByTime)
        self.ui.lineEdit_timeInterval.returnPressed.connect(self.filterByTime)

        # Filter by log value
        self.ui.lineEdit_5.setValidator(regexp_val)
        self.ui.lineEdit_6.setValidator(regexp_val)
        self.ui.lineEdit_7.setValidator(regexp_val)
        self.ui.lineEdit_8.setValidator(regexp_val)
        self.ui.lineEdit_9.setValidator(regexp_val)

        self.ui.lineEdit_5.textChanged.connect(self.set_minLogValue)
        self.ui.lineEdit_6.textChanged.connect(self.set_maxLogValue)

        dirchangeops = ["Both", "Increase", "Decrease"]
        self.ui.comboBox_4.addItems(dirchangeops)

        logboundops = ["Centre", "Left"]
        self.ui.comboBox_5.addItems(logboundops)

        self.ui.pushButton_4.clicked.connect(self.plotLogValue)

        self.ui.pushButton_filterLog.clicked.connect(self.filterByLogValue)

        # Set up help button
        self.ui.helpBtn.clicked.connect(self.helpClicked)

        # Set up vertical slide
        self._upperSlideValue = 99
        self._lowerSlideValue = 0

        self.ui.verticalSlider.setRange(0, 100)
        self.ui.verticalSlider.setValue(self._upperSlideValue)
        self.ui.verticalSlider.setTracking(True)
        self.ui.verticalSlider.valueChanged.connect(self.move_upperSlider)

        self.ui.verticalSlider_2.setRange(0, 100)
        self.ui.verticalSlider_2.setValue(self._lowerSlideValue)
        self.ui.verticalSlider_2.setTracking(True)
        self.ui.verticalSlider_2.valueChanged.connect(self.move_lowerSlider)

        # Set up for filtering (advanced setup)
        self._tofcorrection = False
        self.ui.checkBox_fastLog.setChecked(False)
        self.ui.checkBox_filterByPulse.setChecked(False)
        self.ui.checkBox_from1.setChecked(False)
        self.ui.checkBox_groupWS.setChecked(True)

        self.ui.comboBox_tofCorr.currentIndexChanged.connect(self.showHideEi)
        self.ui.pushButton_refreshCorrWSList.clicked.connect(
            self._searchTableWorkspaces)

        self.ui.lineEdit_Ei.setValidator(regexp_val)

        self.ui.label_Ei.hide()
        self.ui.lineEdit_Ei.hide()
        self.ui.label_Ei_2.hide()
        self.ui.comboBox_corrWS.hide()
        self.ui.pushButton_refreshCorrWSList.hide()

        # Set up for workspaces
        self._dataWS = None
        self._sampleLogNames = []
        self._sampleLog = None

        # Side information
        self.ui.label_mean.hide()
        self.ui.label_meanvalue.hide()
        self.ui.label_avg.hide()
        self.ui.label_timeAvgValue.hide()
        self.ui.label_freq.hide()
        self.ui.label_freqValue.hide()
        self.ui.label_logname.hide()
        self.ui.label_lognamevalue.hide()
        self.ui.label_logsize.hide()
        self.ui.label_logsizevalue.hide()

        # Default
        self._defaultdir = os.getcwd()

        # register startup
        mantid.UsageService.registerFeatureUsage(
            mantid.kernel.FeatureType.Interface, "EventFilter", False)
예제 #16
0
class MplGraphicsViewContourPlot(QWidget):
    """ A combined graphics view including matplotlib canvas and
    a navigation tool bar

    Note: Merged with HFIR_Powder_Reduction.MplFigureCAnvas
    """
    def __init__(self, parent):
        """ Initialization
        """
        # Initialize parent
        super(MplGraphicsViewContourPlot, self).__init__(parent)

        # set up canvas
        self.figure = Figure()
        self.colorbar = None
        # self._myCanvas = Qt4Mpl2DCanvas(self.figure)
        self._myCanvas = FigureCanvas(self.figure)
        self._myToolBar = NavigationToolbar2(self._myCanvas, self)
        # self._myToolBar = MyNavigationToolbar(self._myCanvas, self)

        # state of operation
        self._isZoomed = False
        # X and Y limit with home button
        self._homeXYLimit = None

        self.ax = self.figure.add_subplot(111)

        # set up layout
        self._vBox = QVBoxLayout(self)
        # self._vBox.addWidget(self._myCanvas)
        self._vBox.addWidget(self._myCanvas)
        self._vBox.addWidget(self._myToolBar)

        self._arrowList = list()

        self._hasImage = False

    def add_arrow(self, start_x, start_y, stop_x, stop_y):
        """

        :param start_x:
        :param start_y:
        :param stop_x:
        :param stop_y:
        :return:
        """
        arrow = self._myCanvas.add_arrow(start_x, start_y, stop_x, stop_y)
        self._arrowList.append(arrow)

        return

    def add_image(self, image_file_name):
        """ Add an image by file
        """
        # check
        if os.path.exists(image_file_name) is False:
            raise NotImplementedError("Image file %s does not exist." %
                                      image_file_name)

        self._myCanvas.add_image_file(image_file_name)

        return

    def add_2d_plot(self,
                    array2d,
                    x_min,
                    x_max,
                    y_min,
                    y_max,
                    y_tick_label=None,
                    plot_type='image'):
        """
        Add a 2D image to canvas
        :param array2d: numpy 2D array
        :param x_min:
        :param x_max:
        :param y_min:
        :param y_max:
        :param y_tick_label:
        :return:
        """
        # obsoleted: self._myCanvas.addPlot2D(array2d, x_min, x_max, y_min, y_max, hold_prev_image, y_tick_label)

        if plot_type == 'image':
            self._myCanvas.add_image_plot(array2d,
                                          x_min,
                                          x_max,
                                          y_min,
                                          y_max,
                                          yticklabels=y_tick_label)
        elif plot_type == 'image file':
            self._myCanvas.add_image_file()
        elif plot_type == 'scatter':
            raise NotImplementedError(
                'plot_type="scatter" has not been implemented')
        else:
            raise RuntimeError(
                'Do not know how to add_2d_plot(..., plot_type="{}")'.format(
                    plot_type))

        self._hasImage = True

    def has_image_on_canvas(self):
        # TODO/ASAP
        return self._hasImage

    def update_2d_plot(self):
        pass

    def canvas(self):
        """Get the canvas
        """
        return self._myCanvas

    def clear_canvas(self):
        """Clear canvas
        """
        # clear all the records
        # to-be-filled

        # about zoom
        # to-be-filled

        r = self._myCanvas.clear_canvas()

        return r

    def draw(self):
        """Draw to commit the change
        """
        return self._myCanvas.draw()

    def evt_toolbar_home(self):
        # turn off zoom mode
        self._isZoomed = False

        return

    def evt_view_updated(self):
        """Event handling as canvas size updated
        """
        # # update the indicator
        # new_x_range = self.getXLimit()
        # new_y_range = self.getYLimit()
        #
        # self._myIndicatorsManager.update_indicators_range(new_x_range, new_y_range)
        # for indicator_key in self._myIndicatorsManager.get_live_indicator_ids():
        #     canvas_line_id = self._myIndicatorsManager.get_canvas_line_index(indicator_key)
        #     data_x, data_y = self._myIndicatorsManager.get_data(indicator_key)
        #     self.updateLine(canvas_line_id, data_x, data_y)
        # # END-FOR

        return

    def evt_zoom_released(self):
        """event for zoom is release
        """
        # record home XY limit if it is never zoomed
        if self._isZoomed is False:
            self._homeXYLimit = list(self.getXLimit())
            self._homeXYLimit.extend(list(self.getYLimit()))
        # END-IF

        # set the state of being zoomed
        self._isZoomed = True

        return

    def getLastPlotIndexKey(self):
        """Get ...
        """
        return self._myCanvas.getLastPlotIndexKey()

    def getXLimit(self):
        """Get limit of Y-axis
        :return: 2-tuple as xmin, xmax
        """
        return self._myCanvas.getXLimit()

    def getYLimit(self):
        """Get limit of Y-axis
        """
        return self._myCanvas.getYLimit()

    def get_y_min(self):
        """
        Get the minimum Y value of the plots on canvas
        :return:
        """
        if len(self._statDict) == 0:
            return 1E10

        line_id_list = self._statDict.keys()
        min_y = self._statDict[line_id_list[0]][2]
        for i_plot in range(1, len(line_id_list)):
            if self._statDict[line_id_list[i_plot]][2] < min_y:
                min_y = self._statDict[line_id_list[i_plot]][2]

        return min_y

    def get_y_max(self):
        """
        Get the maximum Y value of the plots on canvas
        :return:
        """
        if len(self._statDict) == 0:
            return -1E10

        line_id_list = self._statDict.keys()
        max_y = self._statDict[line_id_list[0]][3]
        for i_plot in range(1, len(line_id_list)):
            if self._statDict[line_id_list[i_plot]][3] > max_y:
                max_y = self._statDict[line_id_list[i_plot]][3]

        return max_y

    def move_indicator(self, line_id, dx, dy):
        """
        Move the indicator line in horizontal
        :param line_id:
        :param dx:
        :return:
        """
        # Shift value
        self._myIndicatorsManager.shift(line_id, dx=dx, dy=dy)

        # apply to plot on canvas
        if self._myIndicatorsManager.get_line_type(line_id) < 2:
            # horizontal or vertical
            canvas_line_index = self._myIndicatorsManager.get_canvas_line_index(
                line_id)
            vec_x, vec_y = self._myIndicatorsManager.get_data(line_id)
            self._myCanvas.updateLine(ikey=canvas_line_index,
                                      vecx=vec_x,
                                      vecy=vec_y)
        else:
            # 2-way
            canvas_line_index_h, canvas_line_index_v = self._myIndicatorsManager.get_canvas_line_index(
                line_id)
            h_vec_set, v_vec_set = self._myIndicatorsManager.get_2way_data(
                line_id)

            self._myCanvas.updateLine(ikey=canvas_line_index_h,
                                      vecx=h_vec_set[0],
                                      vecy=h_vec_set[1])
            self._myCanvas.updateLine(ikey=canvas_line_index_v,
                                      vecx=v_vec_set[0],
                                      vecy=v_vec_set[1])

        return

    def remove_indicator(self, indicator_key):
        """ Remove indicator line
        :param indicator_key:
        :return:
        """
        #
        plot_id = self._myIndicatorsManager.get_canvas_line_index(
            indicator_key)
        self._myCanvas.remove_plot_1d(plot_id)
        self._myIndicatorsManager.delete(indicator_key)

        return

    def remove_line(self, line_id):
        """ Remove a line
        :param line_id:
        :return:
        """
        # remove line
        self._myCanvas.remove_plot_1d(line_id)

        # remove the records
        if line_id in self._statDict:
            del self._statDict[line_id]
            del self._my1DPlotDict[line_id]
        else:
            del self._statRightPlotDict[line_id]

        return

    def set_indicator_position(self, line_id, pos_x, pos_y):
        """ Set the indicator to new position
        :param line_id: indicator ID
        :param pos_x:
        :param pos_y:
        :return:
        """
        # Set value
        self._myIndicatorsManager.set_position(line_id, pos_x, pos_y)

        # apply to plot on canvas
        if self._myIndicatorsManager.get_line_type(line_id) < 2:
            # horizontal or vertical
            canvas_line_index = self._myIndicatorsManager.get_canvas_line_index(
                line_id)
            vec_x, vec_y = self._myIndicatorsManager.get_data(line_id)
            self._myCanvas.updateLine(ikey=canvas_line_index,
                                      vecx=vec_x,
                                      vecy=vec_y)
        else:
            # 2-way
            canvas_line_index_h, canvas_line_index_v = self._myIndicatorsManager.get_canvas_line_index(
                line_id)
            h_vec_set, v_vec_set = self._myIndicatorsManager.get_2way_data(
                line_id)

            self._myCanvas.updateLine(ikey=canvas_line_index_h,
                                      vecx=h_vec_set[0],
                                      vecy=h_vec_set[1])
            self._myCanvas.updateLine(ikey=canvas_line_index_v,
                                      vecx=v_vec_set[0],
                                      vecy=v_vec_set[1])

        return

    def removePlot(self, ikey):
        """
        """
        return self._myCanvas.remove_plot_1d(ikey)

    def updateLine(self,
                   ikey,
                   vecx=None,
                   vecy=None,
                   linestyle=None,
                   linecolor=None,
                   marker=None,
                   markercolor=None):
        """
        update a line's set up
        Parameters
        ----------
        ikey
        vecx
        vecy
        linestyle
        linecolor
        marker
        markercolor

        Returns
        -------

        """
        # check
        assert isinstance(ikey, int), 'Line key must be an integer.'
        assert ikey in self._my1DPlotDict, 'Line with ID %d is not on canvas. ' % ikey

        return self._myCanvas.updateLine(ikey, vecx, vecy, linestyle,
                                         linecolor, marker, markercolor)

    def update_indicator(self, i_key, color):
        """
        Update indicator with new color
        :param i_key:
        :param vec_x:
        :param vec_y:
        :param color:
        :return:
        """
        if self._myIndicatorsManager.get_line_type(i_key) < 2:
            # horizontal or vertical
            canvas_line_index = self._myIndicatorsManager.get_canvas_line_index(
                i_key)
            self._myCanvas.updateLine(ikey=canvas_line_index,
                                      vecx=None,
                                      vecy=None,
                                      linecolor=color)
        else:
            # 2-way
            canvas_line_index_h, canvas_line_index_v = self._myIndicatorsManager.get_canvas_line_index(
                i_key)
            # h_vec_set, v_vec_set = self._myIndicatorsManager.get_2way_data(i_key)

            self._myCanvas.updateLine(ikey=canvas_line_index_h,
                                      vecx=None,
                                      vecy=None,
                                      linecolor=color)
            self._myCanvas.updateLine(ikey=canvas_line_index_v,
                                      vecx=None,
                                      vecy=None,
                                      linecolor=color)

        return

    def get_canvas(self):
        """
        get canvas
        Returns:

        """
        return self._myCanvas

    def set_title(self, title, color='black'):
        """
        set title to canvas
        :param title:
        :param color:
        :return:
        """
        self._myCanvas.set_title(title, color)

        return

    def setXYLimit(self, xmin=None, xmax=None, ymin=None, ymax=None):
        """ Set X-Y limit automatically
        """
        self._myCanvas.axes.set_xlim([xmin, xmax])
        self._myCanvas.axes.set_ylim([ymin, ymax])

        self._myCanvas.draw()

        return
예제 #17
0
    def __init__(self, parent=None):
        """ Initialization and set up
        """
        # Base class
        QMainWindow.__init__(self, parent)

        # Mantid configuration
        config = ConfigService.Instance()
        self._instrument = config["default.instrument"]

        # Central widget
        self.centralwidget = QWidget(self)

        # UI Window (from Qt Designer)
        self.ui = load_ui(__file__, 'MainWindow.ui', baseinstance=self)
        mpl_layout = QVBoxLayout()
        self.ui.graphicsView.setLayout(mpl_layout)
        self.fig = Figure()
        self.canvas = FigureCanvas(self.fig)
        self.ui.mainplot = self.fig.add_subplot(111, projection='mantid')
        mpl_layout.addWidget(self.canvas)

        # Do initialize plotting
        vecx, vecy, xlim, ylim = self.computeMock()

        self.mainline = self.ui.mainplot.plot(vecx, vecy, 'r-')

        leftx = [xlim[0], xlim[0]]
        lefty = [ylim[0], ylim[1]]
        self.leftslideline = self.ui.mainplot.plot(leftx, lefty, 'b--')
        rightx = [xlim[1], xlim[1]]
        righty = [ylim[0], ylim[1]]
        self.rightslideline = self.ui.mainplot.plot(rightx, righty, 'g--')
        upperx = [xlim[0], xlim[1]]
        uppery = [ylim[1], ylim[1]]
        self.upperslideline = self.ui.mainplot.plot(upperx, uppery, 'b--')
        lowerx = [xlim[0], xlim[1]]
        lowery = [ylim[0], ylim[0]]
        self.lowerslideline = self.ui.mainplot.plot(lowerx, lowery, 'g--')

        self.canvas.mpl_connect('button_press_event', self.on_mouseDownEvent)

        # Set up horizontal slide (integer) and string value
        self._leftSlideValue = 0
        self._rightSlideValue = 99

        self.ui.horizontalSlider.setRange(0, 100)
        self.ui.horizontalSlider.setValue(self._leftSlideValue)
        self.ui.horizontalSlider.setTracking(True)
        self.ui.horizontalSlider.setTickPosition(QSlider.NoTicks)
        self.ui.horizontalSlider.valueChanged.connect(self.move_leftSlider)

        self.ui.horizontalSlider_2.setRange(0, 100)
        self.ui.horizontalSlider_2.setValue(self._rightSlideValue)
        self.ui.horizontalSlider_2.setTracking(True)
        self.ui.horizontalSlider_2.setTickPosition(QSlider.NoTicks)
        self.ui.horizontalSlider_2.valueChanged.connect(self.move_rightSlider)

        # self.connect(self.ui.lineEdit_3, QtCore.SIGNAL("textChanged(QString)"),
        #         self.set_startTime)
        self.ui.lineEdit_3.setValidator(QDoubleValidator(self.ui.lineEdit_3))
        self.ui.pushButton_setT0.clicked.connect(self.set_startTime)
        # self.connect(self.ui.lineEdit_4, QtCore.SIGNAL("textChanged(QString)"),
        #         self.set_stopTime)
        self.ui.lineEdit_4.setValidator(QDoubleValidator(self.ui.lineEdit_4))
        self.ui.pushButton_setTf.clicked.connect(self.set_stopTime)

        # File loader
        self.scanEventWorkspaces()
        self.ui.pushButton_refreshWS.clicked.connect(self.scanEventWorkspaces)
        self.ui.pushButton_browse.clicked.connect(self.browse_File)
        self.ui.pushButton_load.clicked.connect(self.load_File)
        self.ui.pushButton_3.clicked.connect(self.use_existWS)

        # Set up time
        self.ui.lineEdit_3.setValidator(QDoubleValidator(self.ui.lineEdit_3))
        self.ui.lineEdit_4.setValidator(QDoubleValidator(self.ui.lineEdit_4))

        # Filter by time
        self.ui.pushButton_filterTime.clicked.connect(self.filterByTime)

        # Filter by log value
        self.ui.lineEdit_5.setValidator(QDoubleValidator(self.ui.lineEdit_5))
        self.ui.lineEdit_6.setValidator(QDoubleValidator(self.ui.lineEdit_6))
        self.ui.lineEdit_7.setValidator(QDoubleValidator(self.ui.lineEdit_7))
        self.ui.lineEdit_8.setValidator(QDoubleValidator(self.ui.lineEdit_8))
        self.ui.lineEdit_9.setValidator(QDoubleValidator(self.ui.lineEdit_9))

        self.ui.lineEdit_5.textChanged.connect(self.set_minLogValue)
        self.ui.lineEdit_6.textChanged.connect(self.set_maxLogValue)

        dirchangeops = ["Both", "Increase", "Decrease"]
        self.ui.comboBox_4.addItems(dirchangeops)

        logboundops = ["Centre", "Left"]
        self.ui.comboBox_5.addItems(logboundops)

        self.ui.pushButton_4.clicked.connect(self.plotLogValue)

        self.ui.pushButton_filterLog.clicked.connect(self.filterByLogValue)

        # Set up help button
        self.ui.helpBtn.clicked.connect(self.helpClicked)

        # Set up vertical slide
        self._upperSlideValue = 99
        self._lowerSlideValue = 0

        self.ui.verticalSlider.setRange(0, 100)
        self.ui.verticalSlider.setValue(self._upperSlideValue)
        self.ui.verticalSlider.setTracking(True)
        self.ui.verticalSlider.valueChanged.connect(self.move_upperSlider)

        self.ui.verticalSlider_2.setRange(0, 100)
        self.ui.verticalSlider_2.setValue(self._lowerSlideValue)
        self.ui.verticalSlider_2.setTracking(True)
        self.ui.verticalSlider_2.valueChanged.connect(self.move_lowerSlider)

        # Set up for filtering (advanced setup)
        self._tofcorrection = False
        self.ui.checkBox_fastLog.setChecked(False)
        self.ui.checkBox_filterByPulse.setChecked(False)
        self.ui.checkBox_from1.setChecked(False)
        self.ui.checkBox_groupWS.setChecked(True)

        self.ui.comboBox_tofCorr.currentIndexChanged.connect(self.showHideEi)
        self.ui.pushButton_refreshCorrWSList.clicked.connect(self._searchTableWorkspaces)

        self.ui.lineEdit_Ei.setValidator(QDoubleValidator(self.ui.lineEdit_Ei))

        self.ui.label_Ei.hide()
        self.ui.lineEdit_Ei.hide()
        self.ui.label_Ei_2.hide()
        self.ui.comboBox_corrWS.hide()
        self.ui.pushButton_refreshCorrWSList.hide()

        # Set up for workspaces
        self._dataWS = None
        self._sampleLogNames = []
        self._sampleLog = None

        # Side information
        self.ui.label_mean.hide()
        self.ui.label_meanvalue.hide()
        self.ui.label_avg.hide()
        self.ui.label_timeAvgValue.hide()
        self.ui.label_freq.hide()
        self.ui.label_freqValue.hide()
        self.ui.label_logname.hide()
        self.ui.label_lognamevalue.hide()
        self.ui.label_logsize.hide()
        self.ui.label_logsizevalue.hide()

        # Default
        self._defaultdir = os.getcwd()

        # register startup
        mantid.UsageService.registerFeatureUsage("Interface", "EventFilter", False)
예제 #18
0
class MainWindow(QMainWindow):
    """ Class of Main Window (top)
    """

    _errMsgWindow = None

    def __init__(self, parent=None):
        """ Initialization and set up
        """
        # Base class
        QMainWindow.__init__(self, parent)

        # Mantid configuration
        config = ConfigService.Instance()
        self._instrument = config["default.instrument"]

        # Central widget
        self.centralwidget = QWidget(self)

        # UI Window (from Qt Designer)
        self.ui = load_ui(__file__, 'MainWindow.ui', baseinstance=self)
        mpl_layout = QVBoxLayout()
        self.ui.graphicsView.setLayout(mpl_layout)
        self.fig = Figure()
        self.canvas = FigureCanvas(self.fig)
        self.ui.mainplot = self.fig.add_subplot(111, projection='mantid')
        mpl_layout.addWidget(self.canvas)

        # Do initialize plotting
        vecx, vecy, xlim, ylim = self.computeMock()

        self.mainline = self.ui.mainplot.plot(vecx, vecy, 'r-')

        leftx = [xlim[0], xlim[0]]
        lefty = [ylim[0], ylim[1]]
        self.leftslideline = self.ui.mainplot.plot(leftx, lefty, 'b--')
        rightx = [xlim[1], xlim[1]]
        righty = [ylim[0], ylim[1]]
        self.rightslideline = self.ui.mainplot.plot(rightx, righty, 'g--')
        upperx = [xlim[0], xlim[1]]
        uppery = [ylim[1], ylim[1]]
        self.upperslideline = self.ui.mainplot.plot(upperx, uppery, 'b--')
        lowerx = [xlim[0], xlim[1]]
        lowery = [ylim[0], ylim[0]]
        self.lowerslideline = self.ui.mainplot.plot(lowerx, lowery, 'g--')

        self.canvas.mpl_connect('button_press_event', self.on_mouseDownEvent)

        # Set up horizontal slide (integer) and string value
        self._leftSlideValue = 0
        self._rightSlideValue = 99

        self.ui.horizontalSlider.setRange(0, 100)
        self.ui.horizontalSlider.setValue(self._leftSlideValue)
        self.ui.horizontalSlider.setTracking(True)
        self.ui.horizontalSlider.setTickPosition(QSlider.NoTicks)
        self.ui.horizontalSlider.valueChanged.connect(self.move_leftSlider)

        self.ui.horizontalSlider_2.setRange(0, 100)
        self.ui.horizontalSlider_2.setValue(self._rightSlideValue)
        self.ui.horizontalSlider_2.setTracking(True)
        self.ui.horizontalSlider_2.setTickPosition(QSlider.NoTicks)
        self.ui.horizontalSlider_2.valueChanged.connect(self.move_rightSlider)

        # self.connect(self.ui.lineEdit_3, QtCore.SIGNAL("textChanged(QString)"),
        #         self.set_startTime)
        self.ui.lineEdit_3.setValidator(QDoubleValidator(self.ui.lineEdit_3))
        self.ui.pushButton_setT0.clicked.connect(self.set_startTime)
        # self.connect(self.ui.lineEdit_4, QtCore.SIGNAL("textChanged(QString)"),
        #         self.set_stopTime)
        self.ui.lineEdit_4.setValidator(QDoubleValidator(self.ui.lineEdit_4))
        self.ui.pushButton_setTf.clicked.connect(self.set_stopTime)

        # File loader
        self.scanEventWorkspaces()
        self.ui.pushButton_refreshWS.clicked.connect(self.scanEventWorkspaces)
        self.ui.pushButton_browse.clicked.connect(self.browse_File)
        self.ui.pushButton_load.clicked.connect(self.load_File)
        self.ui.pushButton_3.clicked.connect(self.use_existWS)

        # Set up time
        self.ui.lineEdit_3.setValidator(QDoubleValidator(self.ui.lineEdit_3))
        self.ui.lineEdit_4.setValidator(QDoubleValidator(self.ui.lineEdit_4))

        # Filter by time
        self.ui.pushButton_filterTime.clicked.connect(self.filterByTime)

        # Filter by log value
        self.ui.lineEdit_5.setValidator(QDoubleValidator(self.ui.lineEdit_5))
        self.ui.lineEdit_6.setValidator(QDoubleValidator(self.ui.lineEdit_6))
        self.ui.lineEdit_7.setValidator(QDoubleValidator(self.ui.lineEdit_7))
        self.ui.lineEdit_8.setValidator(QDoubleValidator(self.ui.lineEdit_8))
        self.ui.lineEdit_9.setValidator(QDoubleValidator(self.ui.lineEdit_9))

        self.ui.lineEdit_5.textChanged.connect(self.set_minLogValue)
        self.ui.lineEdit_6.textChanged.connect(self.set_maxLogValue)

        dirchangeops = ["Both", "Increase", "Decrease"]
        self.ui.comboBox_4.addItems(dirchangeops)

        logboundops = ["Centre", "Left"]
        self.ui.comboBox_5.addItems(logboundops)

        self.ui.pushButton_4.clicked.connect(self.plotLogValue)

        self.ui.pushButton_filterLog.clicked.connect(self.filterByLogValue)

        # Set up help button
        self.ui.helpBtn.clicked.connect(self.helpClicked)

        # Set up vertical slide
        self._upperSlideValue = 99
        self._lowerSlideValue = 0

        self.ui.verticalSlider.setRange(0, 100)
        self.ui.verticalSlider.setValue(self._upperSlideValue)
        self.ui.verticalSlider.setTracking(True)
        self.ui.verticalSlider.valueChanged.connect(self.move_upperSlider)

        self.ui.verticalSlider_2.setRange(0, 100)
        self.ui.verticalSlider_2.setValue(self._lowerSlideValue)
        self.ui.verticalSlider_2.setTracking(True)
        self.ui.verticalSlider_2.valueChanged.connect(self.move_lowerSlider)

        # Set up for filtering (advanced setup)
        self._tofcorrection = False
        self.ui.checkBox_fastLog.setChecked(False)
        self.ui.checkBox_filterByPulse.setChecked(False)
        self.ui.checkBox_from1.setChecked(False)
        self.ui.checkBox_groupWS.setChecked(True)

        self.ui.comboBox_tofCorr.currentIndexChanged.connect(self.showHideEi)
        self.ui.pushButton_refreshCorrWSList.clicked.connect(self._searchTableWorkspaces)

        self.ui.lineEdit_Ei.setValidator(QDoubleValidator(self.ui.lineEdit_Ei))

        self.ui.label_Ei.hide()
        self.ui.lineEdit_Ei.hide()
        self.ui.label_Ei_2.hide()
        self.ui.comboBox_corrWS.hide()
        self.ui.pushButton_refreshCorrWSList.hide()

        # Set up for workspaces
        self._dataWS = None
        self._sampleLogNames = []
        self._sampleLog = None

        # Side information
        self.ui.label_mean.hide()
        self.ui.label_meanvalue.hide()
        self.ui.label_avg.hide()
        self.ui.label_timeAvgValue.hide()
        self.ui.label_freq.hide()
        self.ui.label_freqValue.hide()
        self.ui.label_logname.hide()
        self.ui.label_lognamevalue.hide()
        self.ui.label_logsize.hide()
        self.ui.label_logsizevalue.hide()

        # Default
        self._defaultdir = os.getcwd()

        # register startup
        mantid.UsageService.registerFeatureUsage("Interface", "EventFilter", False)

    def on_mouseDownEvent(self, event):
        """ Respond to pick up a value with mouse down event
        """
        x = event.xdata
        y = event.ydata

        if x is not None and y is not None:
            msg = "You've clicked on a bar with coords:\n %f, %f" % (x, y)
            QMessageBox.information(self, "Click!", msg)

    def computeMock(self):
        """ Compute vecx and vecy as mocking
        """
        x0 = 0.
        xf = 1.
        dx = 0.1

        vecx = []
        vecy = []

        x = x0
        while x < xf:
            y = 0.0
            vecx.append(x)
            vecy.append(y)
            x += dx

        xlim = [x0, xf]
        ylim = [-1., 1]

        return (vecx, vecy, xlim, ylim)

    def move_leftSlider(self):
        """ Re-setup left range line in figure.
        Triggered by a change in Qt Widget.  NO EVENT is required.
        """
        newx = self.ui.horizontalSlider.value()
        if newx <= self._rightSlideValue and newx != self._leftSlideValue:
            # Allowed value: move the value bar
            self._leftSlideValue = newx

            # Move the vertical line
            xlim = self.ui.mainplot.get_xlim()
            newx = xlim[0] + newx*(xlim[1] - xlim[0])*0.01
            leftx = [newx, newx]
            lefty = self.ui.mainplot.get_ylim()
            setp(self.leftslideline, xdata=leftx, ydata=lefty)
            self.canvas.draw()

            # Change value
            self.ui.lineEdit_3.setText(str(newx))

        else:
            # Reset the value to original value
            self.ui.horizontalSlider.setValue(self._leftSlideValue)

    def set_startTime(self):
        """ Set the starting time and left slide bar
        """
        inps = str(self.ui.lineEdit_3.text())
        info_msg = "Starting time = %s" % (inps)
        Logger("Filter_Events").information(info_msg)

        xlim = self.ui.mainplot.get_xlim()
        if inps == "":
            # Empty. Use default
            newtime0 = xlim[0]
        else:
            newtime0 = float(inps)

        # Convert to integer slide value
        ileftvalue = int((newtime0-xlim[0])/(xlim[1] - xlim[0])*100)
        debug_msg = "iLeftSlide = %s" % str(ileftvalue)
        Logger("Filter_Events").debug(debug_msg)

        # Skip if same as origina
        if ileftvalue == self._leftSlideValue:
            return

        # Set the value if out of range
        resetT = True
        if ileftvalue < 0:
            # Minimum value as 0
            ileftvalue = 0
        elif ileftvalue > self._rightSlideValue:
            # Maximum value as right slide value
            ileftvalue = self._rightSlideValue
        else:
            resetT = False

        if resetT is True:
            newtime0 = xlim[0] + ileftvalue*(xlim[1]-xlim[0])*0.01
        info_msg = 'Corrected iLeftSlide = {} (vs. right = {})'.format(ileftvalue,
                                                                       self._rightSlideValue)
        Logger("Filter_Events").information(info_msg)

        # Move the slide bar (left)
        self._leftSlideValue = ileftvalue

        # Move the vertical line
        leftx = [newtime0, newtime0]
        lefty = self.ui.mainplot.get_ylim()
        setp(self.leftslideline, xdata=leftx, ydata=lefty)
        self.canvas.draw()

        # Set the value to left slider
        self.ui.horizontalSlider.setValue(self._leftSlideValue)
        # Reset the value of line edit
        if resetT is True:
            self.ui.lineEdit_3.setText(str(newtime0))

    def move_rightSlider(self):
        """ Re-setup left range line in figure.
        Triggered by a change in Qt Widget.  NO EVENT is required.
        """
        newx = self.ui.horizontalSlider_2.value()
        if newx >= self._leftSlideValue and newx != self._rightSlideValue:
            # Allowed value: move the value bar
            self._rightSlideValue = newx

            xlim = self.ui.mainplot.get_xlim()
            newx = xlim[0] + newx*(xlim[1] - xlim[0])*0.01
            leftx = [newx, newx]
            lefty = self.ui.mainplot.get_ylim()
            setp(self.rightslideline, xdata=leftx, ydata=lefty)
            self.canvas.draw()

            # Change value
            self.ui.lineEdit_4.setText(str(newx))

        else:
            # Reset the value
            self.ui.horizontalSlider_2.setValue(self._rightSlideValue)

    def set_stopTime(self):
        """ Set the starting time and left slide bar
        """
        inps = str(self.ui.lineEdit_4.text())
        Logger("Filter_Events").information('Stopping time = {}'.format(inps))

        xlim = self.ui.mainplot.get_xlim()
        if inps == "":
            # Empty. Use default
            newtimef = xlim[1]
        else:
            # Parse
            newtimef = float(inps)

        # Convert to integer slide value
        irightvalue = int((newtimef-xlim[0])/(xlim[1] - xlim[0])*100)
        Logger("Filter_Events").information('iRightSlide = {}'.format(irightvalue))

        # Return if no change
        if irightvalue == self._rightSlideValue:
            return

        # Correct value
        resetT = True
        if irightvalue > 100:
            irightvalue = 100
        elif irightvalue < self._leftSlideValue:
            irightvalue = self._leftSlideValue
        else:
            resetT = False

        if resetT is True:
            newtimef = xlim[0] + irightvalue*(xlim[1]-xlim[0])*0.01

        # Move the slide bar (right)
        self._rightSlideValue = irightvalue

        # Move the vertical line
        rightx = [newtimef, newtimef]
        righty = self.ui.mainplot.get_ylim()
        setp(self.rightslideline, xdata=rightx, ydata=righty)
        self.canvas.draw()

        # Set the value to left slider
        self.ui.horizontalSlider_2.setValue(self._rightSlideValue)

        # Reset to line edit
        if resetT:
            self.ui.lineEdit_4.setText(str(newtimef))

    def move_lowerSlider(self):
        """ Re-setup upper range line in figure.
        Triggered by a change in Qt Widget.  NO EVENT is required.
        """
        inewy = self.ui.verticalSlider_2.value()
        debug_msg = 'LowerSlFider is set with value {} vs. class variable {}'.format(inewy,
                                                                                     self._lowerSlideValue)
        Logger("Filter_Events").debug(debug_msg)

        # Return with no change
        if inewy == self._lowerSlideValue:
            # No change
            return

        if inewy >= self._upperSlideValue:
            # Out of upper range
            inewy = self._upperSlideValue - 1

        if inewy == 0 and self._lowerSlideValue < 0:
            setLineEdit = False
        else:
            setLineEdit = True

        # Move the lower vertical bar
        ylim = self.ui.mainplot.get_ylim()
        newy = ylim[0] + inewy*(ylim[1] - ylim[0])*0.01
        lowerx = self.ui.mainplot.get_xlim()
        lowery = [newy, newy]
        setp(self.lowerslideline, xdata=lowerx, ydata=lowery)
        self.canvas.draw()

        # Set line edit input
        if setLineEdit is True:
            # Change value to line edit (5)
            self.ui.lineEdit_5.setText(str(newy))
            # Reset the class variable
            self._lowerSlideValue = inewy

    def set_minLogValue(self):
        """ Set the starting time and left slide bar
        """
        debug_msg = 'Minimum Log Value = {}'.format(self.ui.lineEdit_5.text())
        Logger("Filter_Events").debug(debug_msg)

        ylim = self.ui.mainplot.get_ylim()

        if str(self.ui.lineEdit_5.text()) == "":
            # Empty. Default to minY
            newminY = ylim[0]
        else:
            # Non empty.  Parse
            newminY = float(self.ui.lineEdit_5.text())

        # Convert to integer slide value
        iminlogval = int((newminY-ylim[0])/(ylim[1] - ylim[0])*100)
        Logger("Filter_Events").debug('ilowerSlide = {}'.format(iminlogval))

        # Return if no change
        if iminlogval == self._lowerSlideValue:
            return

        # Set value if out of range
        resetL = True
        if iminlogval >= self._upperSlideValue:
            iminlogval = self._upperSlideValue - 1
        else:
            resetL = False

        if resetL is True:
            newminY = ylim[0] + iminlogval * (ylim[1]-ylim[0]) * 0.01

        # Move the vertical line
        lowerx = self.ui.mainplot.get_xlim()
        lowery = [newminY, newminY]
        setp(self.lowerslideline, xdata=lowerx, ydata=lowery)
        self.canvas.draw()

        # Move the slide bar (lower)
        self._lowerSlideValue = iminlogval
        debug_msg = 'LineEdit5 set slide to {}'.format(self._lowerSlideValue)
        Logger("Filter_Events").debug(debug_msg)
        self.ui.verticalSlider_2.setValue(self._lowerSlideValue)

        # Reset line Edit if using default
        if resetL is True:
            self.ui.lineEdit_5.setText(str(newminY))

    def move_upperSlider(self):
        """ Re-setup upper range line in figure.
        Triggered by a change in Qt Widget.  NO EVENT is required.
        """
        inewy = self.ui.verticalSlider.value()

        # Return w/o change
        if inewy == self._upperSlideValue:
            return

        # Set to boundary value
        if inewy <= self._lowerSlideValue:
            inewy = self._lowerSlideValue + 1

        # Reset line editor?
        if inewy == 100 and self._upperSlideValue > 100:
            setLineEdit = False
        else:
            setLineEdit = True

        # Move the upper value bar: upperx and uppery are
        # real value (float but not (0,100)) of the figure
        ylim = self.ui.mainplot.get_ylim()
        newy = ylim[0] + inewy*(ylim[1] - ylim[0])*0.01
        upperx = self.ui.mainplot.get_xlim()
        uppery = [newy, newy]
        setp(self.upperslideline, xdata=upperx, ydata=uppery)
        self.canvas.draw()

        # Change value
        if setLineEdit is True:
            self.ui.lineEdit_6.setText(str(newy))
            self._upperSlideValue = inewy

    def set_maxLogValue(self):
        """ Set maximum log value from line-edit
        """
        inps = str(self.ui.lineEdit_6.text())
        debug_msg = 'Maximum Log Value = {}'.format(inps)
        Logger("Filter_Events").debug(debug_msg)

        ylim = self.ui.mainplot.get_ylim()
        if inps == "":
            # Empty. Default to minY
            newmaxY = ylim[1]
        else:
            # Parse
            newmaxY = float(inps)

        # Convert to integer slide value
        imaxlogval = int((newmaxY-ylim[0])/(ylim[1] - ylim[0])*100)
        debug_msg = 'iUpperSlide = {}'.format(imaxlogval)
        Logger("Filter_Events").debug(debug_msg)

        # Return if no change
        if imaxlogval == self._upperSlideValue:
            return

        # Set to default if out of range
        resetL = True
        # if imaxlogval >= 100:
        #     imaxlogval = 100
        if imaxlogval < self._lowerSlideValue:
            imaxlogval = self._lowerSlideValue + 1
        else:
            resetL = False

        # Set newmaxY if necessary
        if resetL is True:
            newmaxY = ylim[0] + imaxlogval * (ylim[1] - ylim[0]) * 0.01

        # Move the vertical line
        upperx = self.ui.mainplot.get_xlim()
        uppery = [newmaxY, newmaxY]
        setp(self.upperslideline, xdata=upperx, ydata=uppery)
        self.canvas.draw()

        # Set the value to upper slider
        self._upperSlideValue = imaxlogval
        self.ui.verticalSlider.setValue(self._upperSlideValue)

        # Set the value to editor if necessary
        if resetL is True:
            self.ui.lineEdit_6.setText(str(newmaxY))

    def browse_File(self):
        """ Open a file dialog to get file
        """
        filename = QFileDialog.getOpenFileName(self, 'Input File Dialog',
                                               self._defaultdir, "Data (*.nxs *.dat);;All files (*)")
        if isinstance(filename, tuple):
            filename = filename[0]

        self.ui.lineEdit.setText(filename)

        Logger("Filter_Events").information('Selected file: "{}"'.format(filename))

    def load_File(self):
        """ Load the file by file name or run number
        """
        # Get file name from line editor
        filename = str(self.ui.lineEdit.text())

        dataws = self._loadFile(str(filename))
        if dataws is None:
            error_msg = 'Unable to locate run {} in default directory {}.'.format(filename, self._defaultdir)
            Logger("Filter_Events").error(error_msg)
            self._setErrorMsg(error_msg)
        else:
            self._importDataWorkspace(dataws)
            self._defaultdir = os.path.dirname(str(filename))

        # Reset GUI
        self._resetGUI(resetfilerun=False)

    def use_existWS(self):
        """ Set up workspace to an existing one
        """
        wsname = str(self.ui.comboBox.currentText())

        try:
            dataws = AnalysisDataService.retrieve(wsname)
            self._importDataWorkspace(dataws)
        except KeyError:
            pass

        # Reset GUI
        self._resetGUI(resetfilerun=True)

    def plotLogValue(self):
        """ Plot log value
        """
        # Get log value
        logname = str(self.ui.comboBox_2.currentText())
        if len(logname) == 0:
            # return due to the empty one is chozen
            return

        samplelog = self._dataWS.getRun().getProperty(logname)
        vectimes = samplelog.times
        vecvalue = samplelog.value

        # check
        if len(vectimes) == 0:
            error_msg = "Empty log!"
            Logger("Filter_Events").error(error_msg)

        # Convert absolute time to relative time in seconds
        t0 = self._dataWS.getRun().getProperty("proton_charge").times[0]

        # append 1 more log if original log only has 1 value
        tf = self._dataWS.getRun().getProperty("proton_charge").times[-1]
        vectimes = numpy.append(vectimes, tf)
        vecvalue = numpy.append(vecvalue, vecvalue[-1])

        vecreltimes = (vectimes - t0) / numpy.timedelta64(1, 's')

        # Set to plot
        xlim = [vecreltimes.min(), vecreltimes.max()]
        ylim = [vecvalue.min(), vecvalue.max()]
        self.ui.mainplot.set_xlim(xlim[0], xlim[1])
        self.ui.mainplot.set_ylim(ylim[0], ylim[1])

        setp(self.mainline, xdata=vecreltimes, ydata=vecvalue)

        samunit = samplelog.units
        if len(samunit) == 0:
            ylabel = logname
        else:
            ylabel = "%s (%s)" % (logname, samunit)
        self.ui.mainplot.set_ylabel(ylabel, fontsize=13)

        # assume that all logs are on almost same X-range.  Only Y need to be reset
        setp(self.leftslideline, ydata=ylim)
        setp(self.rightslideline, ydata=ylim)

        # reset the log value limit as previous one does not make any sense
        setp(self.lowerslideline, xdata=xlim, ydata=[ylim[0], ylim[0]])
        self._lowerSlideValue = 0
        self.ui.verticalSlider_2.setValue(self._lowerSlideValue)
        self.ui.lineEdit_5.setText("")

        setp(self.upperslideline, xdata=xlim, ydata=[ylim[1], ylim[1]])
        self._upperSlideValue = 100
        self.ui.verticalSlider.setValue(self._upperSlideValue)
        self.ui.lineEdit_6.setText("")
        self.canvas.draw()

        # Load property's statistic and give suggestion on parallel and fast log
        timeavg = samplelog.timeAverageValue()
        numentries = samplelog.size()
        stat = samplelog.getStatistics()

        duration = stat.duration
        mean = stat.mean
        freq = float(numentries)/float(duration)

        self.ui.label_mean.show()
        self.ui.label_meanvalue.show()
        self.ui.label_avg.show()
        self.ui.label_timeAvgValue.show()
        self.ui.label_freq.show()
        self.ui.label_freqValue.show()
        self.ui.label_logname.show()
        self.ui.label_lognamevalue.show()
        self.ui.label_logsize.show()
        self.ui.label_logsizevalue.show()

        self.ui.label_meanvalue.setText("%.5e" % (mean))
        self.ui.label_timeAvgValue.setText("%.5e" % (timeavg))
        self.ui.label_freqValue.setText("%.5e" % (freq))
        self.ui.label_lognamevalue.setText(logname)
        self.ui.label_logsizevalue.setText(str(numentries))

        # Set suggested processing scheme
        if numentries > HUGE_FAST:
            self.ui.checkBox_fastLog.setCheckState(True)
            if numentries > HUGE_PARALLEL:
                self.ui.checkBox_doParallel.setCheckState(True)
            else:
                self.ui.checkBox_doParallel.setCheckState(False)
        else:
            self.ui.checkBox_fastLog.setCheckState(False)
            self.ui.checkBox_doParallel.setCheckState(False)

        return

    def _importDataWorkspace(self, dataws):
        """ Import data workspace for filtering
        """
        if dataws is None:
            return

        # Plot time counts
        errmsg = self._plotTimeCounts(dataws)
        if errmsg is not None:
            errmsg = 'Workspace {} has invalid sample logs for splitting. Loading \
                    failure! \n{}\n'.format(dataws, errmsg)
            self._setErrorMsg(errmsg)
            return False

        # Import log
        self._sampleLogNames = [""]

        run = dataws.getRun()
        plist = run.getProperties()
        for p in plist:
            try:
                times = p.times
                if len(times) > 1 and numpy.isreal(p.value[0]):
                    self._sampleLogNames.append(p.name)
            # This is here for FloatArrayProperty. If a log value is of this type it does not have times
            except AttributeError:
                pass
        # ENDFOR(p)

        # Set up sample log
        self.ui.comboBox_2.clear()
        self.ui.comboBox_2.addItems(self._sampleLogNames)

        # Side information
        self.ui.label_mean.hide()
        self.ui.label_meanvalue.hide()
        self.ui.label_avg.hide()
        self.ui.label_timeAvgValue.hide()
        self.ui.label_freq.hide()
        self.ui.label_freqValue.hide()

        # Hide 'log name' above the graphic view
        self.ui.label_logname.hide()
        self.ui.label_lognamevalue.hide()

        # Set dataws to class variable
        self._dataWS = dataws

        return True

    def scanEventWorkspaces(self):
        """
        """
        wsnames = AnalysisDataService.getObjectNames()

        eventwsnames = []
        for wsname in wsnames:
            wksp = AnalysisDataService.retrieve(wsname)
            if wksp.__class__.__name__.count("Event") == 1:
                eventwsnames.append(wsname)
        # ENDFOR

        if len(eventwsnames) > 0:
            self.ui.comboBox.clear()
            self.ui.comboBox.addItems(eventwsnames)

    def _loadFile(self, filename):
        """ Load file or run
        File will be loaded to a workspace shown in MantidPlot
        """
        config = ConfigService

        # Check input file name and output workspace name
        if filename.isdigit() is True:
            # Construct a file name from run number
            runnumber = int(filename)
            if runnumber <= 0:
                error_msg = 'Run number cannot be less or equal to zero.  User gives {}.'.format(filename)
                Logger("Filter_Events").error(error_msg)
                return None
            else:
                ishort = config.getInstrument(self._instrument).shortName()
                filename = '{}_{}'.format(ishort, filename)
                wsname = filename + "_event"

        elif filename.count(".") > 0:
            # A proper file name
            wsname = os.path.splitext(os.path.split(filename)[1])[0]

        elif filename.count("_") == 1:
            # A short one as instrument_runnumber
            iname = filename.split("_")[0]
            str_runnumber = filename.split("_")[1]
            if str_runnumber.isdigit() is True and int(str_runnumber) > 0:
                # Accepted format
                ishort = config.getInstrument(iname).shortName()
                wsname = '{}_{}_event'.format(ishort, str_runnumber)
            else:
                # Non-supported
                error_msg = 'File name / run number in such format {} is not supported.'.format(filename)
                Logger("Filter_Events").error(error_msg)

                return None

        else:
            # Unsupported format
            error_msg = 'File name / run number in such format {} is not supported.'.format(filename)
            Logger("Filter_Events").error(error_msg)

            return None

        # Load
        try:
            ws = api.Load(Filename=filename, OutputWorkspace=wsname)
        except RuntimeError as e:
            ws = None
            return str(e)

        return ws

    def _plotTimeCounts(self, wksp):
        """ Plot time/counts
        """
        import datetime
        # Rebin events by pulse time
        try:
            # Get run start and run stop
            if wksp.getRun().hasProperty("run_start"):
                runstart = wksp.getRun().getProperty("run_start").value
            else:
                runstart = wksp.getRun().getProperty("proton_charge").times[0]
            runstop = wksp.getRun().getProperty("proton_charge").times[-1]

            runstart = str(runstart).split(".")[0].strip()
            runstop = str(runstop).split(".")[0].strip()

            t0 = datetime.datetime.strptime(runstart, "%Y-%m-%dT%H:%M:%S")
            tf = datetime.datetime.strptime(runstop, "%Y-%m-%dT%H:%M:%S")

            # Calculate
            dt = tf-t0
            timeduration = dt.days*3600*24 + dt.seconds

            timeres = float(timeduration)/MAXTIMEBINSIZE
            if timeres < 1.0:
                timeres = 1.0

            sumwsname = '_Summed_{}'.format(wksp)
            if AnalysisDataService.doesExist(sumwsname) is False:
                sumws = api.SumSpectra(InputWorkspace=wksp, OutputWorkspace=sumwsname)
                sumws = api.RebinByPulseTimes(InputWorkspace=sumws, OutputWorkspace=sumwsname,
                                              Params='{}'.format(timeres))
                sumws = api.ConvertToPointData(InputWorkspace=sumws, OutputWorkspace=sumwsname)
            else:
                sumws = AnalysisDataService.retrieve(sumwsname)
        except RuntimeError as e:
            return str(e)

        vecx = sumws.readX(0)
        vecy = sumws.readY(0)

        xmin = min(vecx)
        xmax = max(vecx)
        ymin = min(vecy)
        ymax = max(vecy)

        # Reset graph
        self.ui.mainplot.set_xlim(xmin, xmax)
        self.ui.mainplot.set_ylim(ymin, ymax)

        self.ui.mainplot.set_xlabel('Time (seconds)', fontsize=13)
        self.ui.mainplot.set_ylabel('Counts', fontsize=13)

        # Set up main line
        setp(self.mainline, xdata=vecx, ydata=vecy)

        # Reset slide
        newslidery = [min(vecy), max(vecy)]

        newleftx = xmin + (xmax-xmin)*self._leftSlideValue*0.01
        setp(self.leftslideline, xdata=[newleftx, newleftx], ydata=newslidery)

        newrightx = xmin + (xmax-xmin)*self._rightSlideValue*0.01
        setp(self.rightslideline, xdata=[newrightx, newrightx], ydata=newslidery)
        self.canvas.draw()

    def filterByTime(self):
        """ Filter by time
        """
        # Generate event filters
        kwargs = {}
        if self.ui.lineEdit_3.text() != "":
            rel_starttime = float(self.ui.lineEdit_3.text())
            kwargs["StartTime"] = str(rel_starttime)
        if self.ui.lineEdit_4.text() != "":
            rel_stoptime = float(self.ui.lineEdit_4.text())
            kwargs["StopTime"] = str(rel_stoptime)
        if self.ui.lineEdit_timeInterval.text() != "":
            interval = float(self.ui.lineEdit_timeInterval.text())
            kwargs["TimeInterval"] = interval

        splitwsname = str(self._dataWS) + "_splitters"
        splitinfowsname = str(self._dataWS) + "_info"

        title = str(self.ui.lineEdit_title.text())
        fastLog = self.ui.checkBox_fastLog.isChecked()

        splitws, infows = api.GenerateEventsFilter(InputWorkspace=self._dataWS,
                                                   UnitOfTime="Seconds",
                                                   TitleOfSplitters=title,
                                                   OutputWorkspace=splitwsname,
                                                   FastLog=fastLog,
                                                   InformationWorkspace=splitinfowsname,
                                                   **kwargs)

        self.splitWksp(splitws, infows)

    def filterByLogValue(self):
        """ Filter by log value
        """
        # Generate event filter
        kwargs = {}
        samplelog = str(self.ui.comboBox_2.currentText())
        if len(samplelog) == 0:
            error_msg = "No sample log is selected!"
            Logger("Filter_Events").error(error_msg)
            return

        if self.ui.lineEdit_3.text() != "":
            rel_starttime = float(self.ui.lineEdit_3.text())
            kwargs["StartTime"] = str(rel_starttime)

        if self.ui.lineEdit_4.text() != "":
            rel_stoptime = float(self.ui.lineEdit_4.text())
            kwargs["StopTime"] = str(rel_stoptime)

        if self.ui.lineEdit_5.text() != "":
            minlogvalue = float(self.ui.lineEdit_5.text())
            kwargs["MinimumLogValue"] = minlogvalue

        if self.ui.lineEdit_6.text() != "":
            maxlogvalue = float(self.ui.lineEdit_6.text())
            kwargs["MaximumLogValue"] = maxlogvalue

        if self.ui.lineEdit_7.text() != "":
            logvalueintv = float(self.ui.lineEdit_7.text())
            kwargs["LogValueInterval"] = logvalueintv
        logvalchangedir = str(self.ui.comboBox_4.currentText())
        kwargs["FilterLogValueByChangingDirection"] = logvalchangedir

        if self.ui.lineEdit_9.text() != "":
            logvalueintv = float(self.ui.lineEdit_9.text())
            kwargs["TimeTolerance"] = logvalueintv
        logboundtype = str(self.ui.comboBox_5.currentText())
        kwargs["LogBoundary"] = logboundtype

        if self.ui.lineEdit_8.text() != "":
            logvaluetol = float(self.ui.lineEdit_8.text())
            kwargs["LogValueTolerance"] = logvaluetol

        splitwsname = str(self._dataWS) + "_splitters"
        splitinfowsname = str(self._dataWS) + "_info"
        fastLog = self.ui.checkBox_fastLog.isChecked()

        title = str(self.ui.lineEdit_title.text())

        splitws, infows = api.GenerateEventsFilter(InputWorkspace=self._dataWS,
                                                   UnitOfTime="Seconds",
                                                   TitleOfSplitters=title,
                                                   OutputWorkspace=splitwsname,
                                                   LogName=samplelog,
                                                   FastLog=fastLog,
                                                   InformationWorkspace=splitinfowsname,
                                                   **kwargs)

        try:
            self.splitWksp(splitws, infows)
        except RuntimeError as e:
            self._setErrorMsg("Splitting Failed!\n %s" % (str(e)))

    def splitWksp(self, splitws, infows):
        """ Run FilterEvents
        """
        dogroupws = self.ui.checkBox_groupWS.isChecked()
        filterbypulse = self.ui.checkBox_filterByPulse.isChecked()
        startfrom1 = self.ui.checkBox_from1.isChecked()
        splitsamplelog = self.ui.checkBox_splitLog.isChecked()

        corr2sample = str(self.ui.comboBox_tofCorr.currentText())
        how2skip = str(self.ui.comboBox_skipSpectrum.currentText())

        kwargs = {}
        if corr2sample == "Direct":
            ei = float(self.ui.lineEdit_Ei.text())
            kwargs["IncidentEnergy"] = ei
        elif corr2sample == "Customized":
            corrws = str(self.ui.comboBox_corrWS.currentText())
            kwargs["DetectorTOFCorrectionWorkspace"] = corrws

        # Output workspace name
        outbasewsname = str(self.ui.lineEdit_outwsname.text())
        if len(outbasewsname) == 0:
            outbasewsname = "tempsplitted"
            self.ui.lineEdit_outwsname.setText(outbasewsname)

        api.FilterEvents(InputWorkspace=self._dataWS,
                         SplitterWorkspace=splitws,
                         InformationWorkspace=infows,
                         OutputWorkspaceBaseName=outbasewsname,
                         GroupWorkspaces=dogroupws,
                         FilterByPulseTime=filterbypulse,
                         CorrectionToSample=corr2sample,
                         SpectrumWithoutDetector=how2skip,
                         SplitSampleLogs=splitsamplelog,
                         OutputWorkspaceIndexedFrom1=startfrom1,
                         OutputTOFCorrectionWorkspace='TOFCorrTable', **kwargs)

    def showHideEi(self):
        """
        """
        corrtype = str(self.ui.comboBox_tofCorr.currentText())

        # Incident energy
        if corrtype == "Direct":
            self.ui.label_Ei.show()
            self.ui.lineEdit_Ei.show()
        else:
            self.ui.label_Ei.hide()
            self.ui.lineEdit_Ei.hide()

        # Workspace
        if corrtype == "Customized":
            self.ui.label_Ei_2.show()
            self.ui.comboBox_corrWS.show()
            self.ui.pushButton_refreshCorrWSList.show()

            # Search for table workspace
            self._searchTableWorkspaces()

        else:
            self.ui.label_Ei_2.hide()
            self.ui.comboBox_corrWS.hide()
            self.ui.pushButton_refreshCorrWSList.hide()

    def _searchTableWorkspaces(self):
        """ Search table workspaces and add to 'comboBox_corrWS'
        """
        wsnames = AnalysisDataService.getObjectNames()

        tablewsnames = []
        for wsname in wsnames:
            wksp = AnalysisDataService.retrieve(wsname)
            if isinstance(wksp, mantid.api.ITableWorkspace):
                tablewsnames.append(wsname)
        # ENDFOR

        self.ui.comboBox_corrWS.clear()
        if len(tablewsnames) > 0:
            self.ui.comboBox_corrWS.addItems(tablewsnames)

    def _setErrorMsg(self, errmsg):
        """ Clear error message
        """
        self._errMsgWindow = QMessageBox()
        self._errMsgWindow.setIcon(QMessageBox.Critical)
        self._errMsgWindow.setWindowTitle('Error')
        self._errMsgWindow.setStandardButtons(QMessageBox.Ok)
        self._errMsgWindow.setText(errmsg)
        result = self._errMsgWindow.exec_()

        return result

    def helpClicked(self):
        try:
            from pymantidplot.proxies import showCustomInterfaceHelp
            showCustomInterfaceHelp("Filter Events")
        except ImportError:
            url = ("http://docs.mantidproject.org/nightly/interfaces/{}.html"
                   "".format("Filter Events"))
            QDesktopServices.openUrl(QUrl(url))

    def _resetGUI(self, resetfilerun=False):
        """ Reset GUI including all text edits and etc.
        """
        if resetfilerun is True:
            self.ui.lineEdit.clear()

        # Plot related
        self.ui.lineEdit_3.clear()
        self.ui.lineEdit_4.clear()
        self.ui.horizontalSlider.setValue(0)
        self.ui.horizontalSlider_2.setValue(100)

        self.ui.lineEdit_outwsname.clear()
        self.ui.lineEdit_title.clear()

        # Filter by log value
        self.ui.lineEdit_5.clear()
        self.ui.lineEdit_6.clear()

        self.ui.verticalSlider_2.setValue(0)
        self.ui.verticalSlider.setValue(100)

        ylim = self.ui.mainplot.get_ylim()
        miny = ylim[0]
        maxy = ylim[1]
        xlim = self.ui.mainplot.get_xlim()
        setp(self.lowerslideline, xdata=xlim, ydata=[miny, miny])
        setp(self.upperslideline, xdata=xlim, ydata=[maxy, maxy])

        self.ui.lineEdit_7.clear()
        self.ui.lineEdit_8.clear()
        self.ui.lineEdit_9.clear()

        # Filter by time
        self.ui.lineEdit_timeInterval.clear()

        # Advanced setup
        self.ui.comboBox_tofCorr.setCurrentIndex(0)
        self.ui.lineEdit_Ei.clear()

        self.ui.checkBox_fastLog.setCheckState(False)
        self.ui.checkBox_doParallel.setCheckState(False)

        self.ui.comboBox_skipSpectrum.setCurrentIndex(0)

        self.ui.checkBox_filterByPulse.setCheckState(False)
        self.ui.checkBox_from1.setCheckState(False)
        self.ui.checkBox_groupWS.setCheckState(True)
        self.ui.checkBox_splitLog.setCheckState(False)

        self.canvas.draw()