from PySide2.QtCore import Qt
from Qt import (QtGui, QtCompat, QtCore, QtWidgets, __binding__, __binding_version__,
                __qt_version__, __version__)

import pyqtgraph as pg

    def UpdateIntensity(self):
        # Plot pixel intensities
        self.plotWidgetPixelIntensity.clear()

        self.plotWidgetPixelIntensity.showGrid(x = True, y = True, alpha = 0.75)
        self.plotWidgetPixelIntensity.setLabel('bottom', 'Pixel Intensity (counts)')
        self.plotWidgetPixelIntensity.addLegend()

        penRed = pg.mkPen(color=(255, 0, 0), width=2.0)
        penBlue = pg.mkPen(color=(0, 0, 255), width=2.0)
        penGreen = pg.mkPen(color=(150, 0, 0), width=5.0, style=QtCore.Qt.DashLine)
        penPurple = pg.mkPen(color=(0, 0, 150), width=5.0, style=QtCore.Qt.DashLine)

        self.plotWidgetPixelIntensity.enableAutoRange(axis='y')
        self.plotWidgetPixelIntensity.setAutoVisible(y=True)

        self.plotWidgetPixelIntensity.plot(
            self.vr.grayBins,
            self.vr.grayPDF,
            pen = penRed,
            brush = (255, 0, 0, 100),
            fillLevel=0,
            name = 'PDF Gray'
        )

        self.plotWidgetPixelIntensity.plot(
            self.vr.grayBins,
            self.vr.grayCDF,
            pen = penGreen,
            name = 'CDF Gray'
        )

        self.plotWidgetPixelIntensity.plot(
            [
                self.vr.centroidTrackThreshold,
                self.vr.centroidTrackThreshold
            ],
            [0, 1],
            pen = penBlue
        )

        self.plotWidgetPixelIntensity.plot(
            self.vr.threshGrayBins,
            self.vr.threshGrayPDF,
            pen = penBlue,
            brush = (0, 0, 255, 100),
            fillLevel=0,
            name = 'PDF Thresh'
        )

        self.plotWidgetPixelIntensity.plot(
            self.vr.threshGrayBins,
            self.vr.threshGrayCDF,
            pen = penPurple,
            name = 'CDF Thresh'
        )

        # self.plotWidgetPixelIntensity.setLogMode(False, True)
        # self.plotWidgetPixelIntensity.setRange(xRange=[0, 255], yRange=[-3, 0])
        self.plotWidgetPixelIntensity.setRange(xRange=[0, 255], yRange=[0, 1])