analysisview.py 45 KB
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#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""
Created on Thu May 31 10:07:45 2018

@author: brandt
"""

"""
GEPARD - Gepard-Enabled PARticle Detection
Copyright (C) 2018  Lars Bittrich and Josef Brandt, Leibniz-Institut für 
Polymerforschung Dresden e. V. <bittrich-lars@ipfdd.de>    

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program, see COPYING.  
If not, see <https://www.gnu.org/licenses/>.
"""

import numpy as np
from PyQt5 import QtCore, QtGui, QtWidgets
import sys
import operator
import os
import random
import colorsys

from matplotlib.backends.backend_qt5agg import FigureCanvasQTAgg as FigureCanvas
from matplotlib.figure import Figure
from matplotlib.backends.backend_qt5agg import NavigationToolbar2QT as NavigationToolbar

import pandas as pd
from analysis.loadresults import LoadWITecResults
from analysis.editParticles import ParticleEditor
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try:
    from analysis.sqlexport import SQLExport
    sqlEnabled = True
except:
    sqlEnabled = False
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class ParticleAnalysis(QtWidgets.QWidget):
    def __init__(self, parent):
        super(ParticleAnalysis, self).__init__()
        self.setGeometry(100, 100, 1680, 1050)
        self.setWindowTitle('Results of polymer analysis')
        self.layout = QtWidgets.QHBoxLayout()
        self.setLayout(self.layout)

        self.parent = parent
        if self.parent is not None:
            self.config = self.parent.dataset.resultParams
        
        self.editor = ParticleEditor(self)
        
        self.spectraResults = None                  #entire List of all spectra assignments
        self.additiveResults = None                 #entire List of all additives
        self.particlestats = None
        self.particleResults = None                 #final assignment for each particle
        
        self.currentPolymers = None                 #list of polymers after setting entries with low hqi to unknown
        self.currentAdditives = None                #same thing for the additives
        self.uniquePolymers = None                  #list of present polymer types
        self.spectra = None                         #acquired spectra
        self.indices = None                         #assignment of what spectra-indices belong to what substance
        self.expWindow = None
        self.additivePlot = None
        self.importWindow = None
        self.directory = None
        self.particles2spectra = None
        self.manualPolymers = {}
        self.manualAdditives = {}
        self.polymerCheckBoxes = []
        self.lastSelectedCheckBoxNames = []
        
        self.currentParticleIndex = 0
        self.currentSpectrumIndex = 0
        self.lastSpectrumInFocus = None
        
        self.typeHistogramCanvas = FigureCanvas(Figure())
        self.sizeHistogramCanvas = FigureCanvas(Figure())
       
        self.typeHist_ax = self.typeHistogramCanvas.figure.subplots()
        self.typeHist_ax.axis('off')
        sizeHistGroup = QtWidgets.QGroupBox()
        sizeHistLayout = QtWidgets.QHBoxLayout()
        self.sizeHist_ax = self.sizeHistogramCanvas.figure.subplots()
        self.sizeHist_ax.axis('off')
        self.sizeHistogramCanvas.figure.subplots_adjust(left=0.1, top=0.93, bottom=0.15, right=0.995)
        histNavigation = NavigationToolbar(self.sizeHistogramCanvas, self)
        histNavigation.setOrientation(QtCore.Qt.Vertical)
        histNavigation.setMinimumWidth(50)
        histNavigation.setMaximumWidth(50)
        sizeHistLayout.addWidget(histNavigation)
        sizeHistLayout.addWidget(self.sizeHistogramCanvas)
        sizeHistGroup.setLayout(sizeHistLayout)
        
        specGroup = QtWidgets.QGroupBox()
        specLayout = QtWidgets.QHBoxLayout()
        self.specCanvas = FigureCanvas(Figure())
        self.spec_ax = self.specCanvas.figure.subplots()
        self.spec_ax.axis("off")
        self.specCanvas.figure.subplots_adjust(left=0.1, top=0.93, bottom=0.15, right=0.995)
        specNavigation = NavigationToolbar(self.specCanvas, self)
        specNavigation.setOrientation(QtCore.Qt.Vertical)
        specNavigation.setMinimumWidth(50)
        specNavigation.setMaximumWidth(50)
        
        specLayout.addWidget(specNavigation)
        specLayout.addWidget(self.specCanvas)
        specGroup.setLayout(specLayout)
        
        viewLayout = QtWidgets.QVBoxLayout()
        self.menuLayout = QtWidgets.QVBoxLayout()
        
        splitter1 = QtWidgets.QSplitter(QtCore.Qt.Vertical)
        splitter1.addWidget(specGroup)
        splitter1.addWidget(sizeHistGroup)
        splitter2 = QtWidgets.QSplitter(QtCore.Qt.Horizontal)
        splitter2.addWidget(splitter1)
        splitter2.addWidget(self.typeHistogramCanvas)
        splitter2.setSizes([300, 150])
       
        self.navigationGroup = QtWidgets.QGroupBox('Navigate through polymers')
        self.navigationGroup.setDisabled(True)
        navigationLayout = QtWidgets.QHBoxLayout()
        self.polymerComboBox = QtWidgets.QComboBox()
        self.polymerComboBox.currentIndexChanged.connect(self.displayNewPolymerType)
        self.polymerComboBox.setMinimumWidth(150)
        self.particleSelector = QtWidgets.QSpinBox()
        self.particleSelector.valueChanged.connect(self.selectParticle)
        self.spectrumSelector = QtWidgets.QSpinBox()
        self.spectrumSelector.valueChanged.connect(self.selectSpectrum)
        for spinbox in [self.particleSelector, self.spectrumSelector]:
            spinbox.setMinimum(1)
            spinbox.setSingleStep(1)
            spinbox.setValue(1)
        
        self.overlayGroup = QtWidgets.QGroupBox('Color Overlay')
        self.overlayLayout = QtWidgets.QHBoxLayout()
        self.noOverlayBtn = QtWidgets.QRadioButton('None')
        self.selOverlayBtn = QtWidgets.QRadioButton('Selected')
        self.fullOverlayBtn = QtWidgets.QRadioButton('Full')
        for index, button in enumerate([self.noOverlayBtn, self.selOverlayBtn, self.fullOverlayBtn]):
            if index == 2:
                button.setChecked(True)
            else:
                button.setChecked(False)
            button.released.connect(self.createPolymerOverlay)
            button.released.connect(self.updateHistogram)
            self.overlayLayout.addWidget(button)
        
        self.seedBtn = QtWidgets.QPushButton('Set Color Seed')
        self.seedBtn.released.connect(self.updateColorSeed)
        self.overlayLayout.addWidget(self.seedBtn)
        
        self.hideLabelBtn = QtWidgets.QCheckBox('Hide Polymer Numbers')
        self.hideLabelBtn.stateChanged.connect(self.show_hide_labels)
        self.hideLabelBtn.setChecked(False)
#        self.hideLabelBtn.setChecked(True)  #change twice in order to run the connected function...
        self.overlayLayout.addWidget(self.hideLabelBtn)
        
        self.transpBtn = QtWidgets.QCheckBox('Transparent')
        self.transpBtn.setChecked(False)
        self.transpBtn.stateChanged.connect(self.createPolymerOverlay)
        self.overlayLayout.addWidget(self.transpBtn)
        
        self.darkenBtn = QtWidgets.QCheckBox('Darken Image')
        self.darkenBtn.setChecked(False)
        self.darkenBtn.stateChanged.connect(self.darkenBackground)
        self.overlayLayout.addWidget(self.darkenBtn)
        
        self.overlayGroup.setLayout(self.overlayLayout)
        
        navigationLayout.addWidget(QtWidgets.QLabel('Select Polymer Type:'))
        navigationLayout.addWidget(self.polymerComboBox)
        navigationLayout.addStretch()
        navigationLayout.addWidget(QtWidgets.QLabel('Select Particle'))
        navigationLayout.addWidget(self.particleSelector)
        navigationLayout.addWidget(QtWidgets.QLabel('Select Spectrum'))
        navigationLayout.addWidget(self.spectrumSelector)
        navigationLayout.addStretch()
        
        self.navigationGroup.setLayout(navigationLayout)
        
        topLayout = QtWidgets.QHBoxLayout()
        topLayout.addWidget(self.navigationGroup)
        topLayout.addWidget(self.overlayGroup)
        
        viewLayout.addLayout(topLayout)
        viewLayout.addWidget(splitter2)
        viewLayout.setStretch(1, 1)
        
        reloadGroup = QtWidgets.QGroupBox('Reload Results from:')
        reloadLayout = QtWidgets.QVBoxLayout()
        self.reloadWITec = QtWidgets.QRadioButton('WITec True Match')
        self.reloadWITec.setChecked(True)
        self.reloadTxt = QtWidgets.QRadioButton('Ordered text file')
        reloadBtn = QtWidgets.QPushButton('reload Results')
        reloadBtn.clicked.connect(self.importResults)
        reloadLayout.addWidget(self.reloadWITec)
        reloadLayout.addWidget(self.reloadTxt)
        reloadLayout.addWidget(reloadBtn)
        reloadGroup.setLayout(reloadLayout)

        self.optionsGroup = QtWidgets.QGroupBox('Further Options')
        optionsLayout = QtWidgets.QFormLayout()
        
        self.hqiSpinBox = QtWidgets.QDoubleSpinBox()
        self.hqiSpinBox.setValue(75.0)
        self.hqiSpinBox.setDecimals(1)
        self.hqiSpinBox.setMinimum(0)
        optionsLayout.addRow(QtWidgets.QLabel('min HQI:'), self.hqiSpinBox)
        
        self.compHqiSpinBox = QtWidgets.QDoubleSpinBox()
        self.compHqiSpinBox.setValue(30.0)
        self.compHqiSpinBox.setDecimals(1)
        self.compHqiSpinBox.setMinimum(0)
        self.compHqiSpinBox.setDisabled(True)
        optionsLayout.addRow(QtWidgets.QLabel('min component HQI'), self.compHqiSpinBox)
        
        self.dispResultSpinBox = QtWidgets.QSpinBox()
        self.dispResultSpinBox.setValue(20)
        self.dispResultSpinBox.setMinimum(1)
        self.dispResultSpinBox.valueChanged.connect(self.updateHistogram)
        optionsLayout.addRow(QtWidgets.QLabel('Max. items in display:'), self.dispResultSpinBox)
        
        for spinbox in [self.hqiSpinBox, self.compHqiSpinBox]:
            spinbox.setMaximum(100)
            spinbox.setMaximumWidth(45)
        
        self.updateBtn = QtWidgets.QPushButton('Update Results')
        self.updateBtn.setDisabled(True)
        optionsLayout.addRow(self.updateBtn)
        
        self.optionsGroup.setLayout(optionsLayout)
        self.optionsGroup.setMinimumWidth(175)
        self.optionsGroup.setDisabled(True)
        
        self.resultScrollarea = QtWidgets.QScrollArea(self)
        self.resultScrollarea.setFixedWidth(250)
        self.resultScrollarea.setWidgetResizable(True)

        widget = QtWidgets.QWidget()
        self.resultScrollarea.setWidget(widget)
        self.layout_SArea = QtWidgets.QVBoxLayout(widget)

        self.resultCheckBoxes = QtWidgets.QGroupBox('Display Polymer Types:')
        self.resultCheckBoxesLayout = QtWidgets.QVBoxLayout()
        self.showTotalSelector = QtWidgets.QCheckBox('Show Total Distribution')
        self.showTotalSelector.setChecked(True)
        self.showTotalSelector.setDisabled(True)
        self.resultCheckBoxesLayout.addWidget(self.showTotalSelector)
       
        self.resultCheckBoxesLayout.addStretch()
        self.resultCheckBoxes.setLayout(self.resultCheckBoxesLayout)

        self.layout_SArea.addWidget(self.resultCheckBoxes)
#        self.layout_SArea.addStretch(1)
        
        self.exportbtn= QtWidgets.QPushButton('Export Results')
        self.exportbtn.clicked.connect(self.exportData)
        self.exportbtn.setDisabled(True)

        self.menuLayout.addWidget(reloadGroup)
        self.menuLayout.addWidget(self.optionsGroup)
        self.menuLayout.addWidget(self.resultScrollarea)
        self.menuLayout.addWidget(self.exportbtn)
        
        self.layout.addLayout(self.menuLayout)
        self.layout.addLayout(viewLayout)
        
#        update config, if present:
        if self.parent is not None:
            if self.config['minHQI'] is not None:
                self.hqiSpinBox.setValue(self.config['minHQI'])
                self.compHqiSpinBox.setValue(self.config['compHQI'])
                
        self.updateData()
         
    def loadSpectra(self, fname):
        try:
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            specs = np.loadtxt(fname)
            #if spectra are already in correct format (WITec, first column: wavenumbers, other columns, intensities), 
            #we take them, otherwise we have to convert from Renishaw export format...
            if len(np.unique(specs[:, 0])) == len(specs[:, 0]): #--> only unique numbers -> this is the wavenumber column, we have the witec format
                return specs
            else:        
                #columns 0 and 1 are x and y coordinates. We dont need them...
                startWavenumber = specs[0, 2]
                startIndices = np.where(specs[:, 2] == startWavenumber)[0]
                
                spectra = np.zeros((startIndices[1], len(startIndices)+1))   #create array with shape (numWavenumbers, numSpectra+1) (first column holds wavenumbers)
                spectra[:, 0] = specs[startIndices[0]:startIndices[1], 2]
                for i in range(len(startIndices)-1):
                    spectra[:, i+1] = specs[startIndices[i]:startIndices[i+1], 3]
                #aaand the last spectrum:
                spectra[:, -1] = specs[startIndices[-1]:, 3]
                return np.flip(spectra, 0)    #Renishaw goes from highest to lowest wavenumber, out of whatever reason...
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        except:
            return None
        
    def updateData(self):
        self.spectraResults = self.parent.dataset.results['polymers']
        self.additiveResults = self.parent.dataset.results['additives']
        self.hqis = self.parent.dataset.results['hqis']
        self.addhqis = self.parent.dataset.results['additive_hqis']
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        self.colorSeed = self.parent.dataset.colorSeed
        if type(self.colorSeed) != str:
            self.colorSeed = 'default'
        
        #load Spectra
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        if self.parent.dataset.spectraPath is None:
            fname = os.path.join(self.parent.dataset.path, self.parent.dataset.name + '_000_Spec.Data 1.txt')
        else:
            fname = self.parent.dataset.spectraPath
        self.spectra = self.loadSpectra(fname)
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        if self.spectra is None:
            fname = QtWidgets.QFileDialog.getOpenFileName(self, 'Select Spectra File', self.parent.dataset.path, 'text file (*.txt)')[0]
            self.spectra = self.loadSpectra(fname)
            if self.spectra is None:
                QtWidgets.QMessageBox.critical(self, 'ERROR!', 'spectra file could not be opened with np.loadtxt...')
                return
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        self.parent.dataset.spectraPath = fname
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        self.spec_ax.set_xbound(100, (3400 if self.spectra[-1, 0] > 3400 else self.spectra[-1, 0]))
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        self.specCanvas.draw()
        
        ####fake data!!!
        if self.spectraResults is None:
            self.spectraResults = ['empty']*(self.spectra.shape[1]-1)
            self.hqis = [100]*(self.spectra.shape[1]-1)
        
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        self.loadParticleData()
        
    def loadParticleData(self):
        self.particlestats = np.array(self.parent.dataset.particlestats)
        pixelscale = (self.parent.dataset.pixelscale_df if self.parent.dataset.imagescanMode == 'df' else self.parent.dataset.pixelscale_bf)
        #convert to mikrometer scale
        for index in range(len(self.particlestats)):
            for subindex in range(5):
                self.particlestats[index][subindex] = self.particlestats[index][subindex] * pixelscale    #multiply by pixelscale
                if subindex == 4:
                    self.particlestats[index][subindex] = self.particlestats[index][subindex] * pixelscale  #again for the area...
        
        self.particles2spectra = self.parent.dataset.particles2spectra
        
        sortindices = self.parent.dataset.ramanscansortindex
        if self.particles2spectra is None:
            print('creating default particles2spectra list')
            #no assignment found, so we assume one measurement per particle and use ramanscansortindex for assignment
            self.particles2spectra = [[int(np.where(sortindices == i)[0])] for i in range(len(sortindices))]
        
        #check, if dataset already contains results. Otherwise load them...
        if self.spectraResults is None or (len(self.spectraResults) != len(sortindices)):
            QtWidgets.QMessageBox.about(self, 'Info', 'No (or inconsistent) spectra results found, please run import dialog.')
        else:
            self.updateBtn.clicked.connect(self.formatResults)
            self.formatResults()
        
    def importResults(self):
        if self.reloadWITec.isChecked():
            self.importWindow = LoadWITecResults(self)
            self.importWindow.show()
        elif self.reloadTxt.isChecked():
            QtWidgets.QMessageBox.about(self, 'sorry...', 'Ordered Text import not yet implemented...')
    
    def getAdditivePlot(self, event):
        clickedindex = int(np.round(event.xdata))
        polymer = self.typehistogram[clickedindex][0]        #get the polymer name, that was clicked on
      
        if len(self.sorted_additives[clickedindex]) > 0:            
            self.additivePlot = AdditiveViewer(polymer, self.sorted_additives[clickedindex])
            self.additivePlot.show()
    
    def formatResults(self):
        print('formatResults')
        self.updateBtn.setDisabled(False)
        self.optionsGroup.setDisabled(False)
        del self.currentPolymers, self.currentAdditives
        
        #convert to arrays (makes indexing easier...)
        self.currentPolymers, self.hqis = np.array(self.spectraResults), np.array(self.hqis)
        
        if self.additiveResults is not None:
            self.currentAdditives, self.addhqis = np.array(self.additiveResults), np.array(self.addhqis)
            self.compHqiSpinBox.setDisabled(False)
        else:
            self.currentAdditives = None
        
        #set poor HQI results to unknown
        self.currentPolymers[self.hqis < self.hqiSpinBox.value()] = 'unknown'
        
        if self.currentAdditives is not None:
            self.currentAdditives[self.addhqis < self.compHqiSpinBox.value()] = 'unknown'
        
        self.createHistogramData()
            
    def createHistogramData(self):
        self.uniquePolymers = np.unique(self.currentPolymers)
        self.particleResults = [None]*len(self.particlestats)
        self.typehistogram = {i: 0 for i in self.uniquePolymers}
        
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        if len(self.particles2spectra) != len(self.particlestats):
            QtWidgets.QMessageBox.critical(self, 'Error', 'Inconsistent particle data. Please restore backup!')
            return
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        for particleID, specList in enumerate(self.particles2spectra):
            assignment = self.currentPolymers[specList[0]]   #we take the first result as particle result. Hence, all spectra per particle have to have the same result
            self.particleResults[particleID] = assignment
            self.typehistogram[assignment] += 1
            
        self.particleResults = np.array(self.particleResults)
        
        ##sort typehistogram, it will be converted into a list!!
        self.typehistogram = sorted(self.typehistogram.items(), key = operator.itemgetter(1), reverse = True)
        
        self.uniquePolymers = [i[0] for i in self.typehistogram]
        
        self.indices = []      #what particles belong to which polymer type?
        for polymer in self.uniquePolymers:
            self.indices.append(list(np.where(self.particleResults == polymer)[0]))
            

        ###generate additive array for each type in typehistogram:
        if self.currentAdditives is None:
            self.sorted_additives = None
        else:
            self.sorted_additives = []
            
            for polymer in self.typehistogram:  #get additives of each polymer type
                self.sorted_additives.append(self.currentAdditives[np.where(self.currentPolymers == polymer[0])])
            for i in range(len(self.sorted_additives)):         #sort out 'none' entries
                nonentries = np.where(self.sorted_additives[i] == 'none')
                self.sorted_additives[i] = np.delete(self.sorted_additives[i], nonentries)
        
        ###Handle Checkboxes for all polymers...
        self.menuLayout.removeWidget(self.resultScrollarea)
        for i in [self.resultCheckBoxes, self.resultCheckBoxesLayout, self.resultScrollarea, self.layout_SArea]:
            i.setParent(None)
            del i

        for i in self.polymerCheckBoxes:        #remove present boxlabels
            i.setParent(None)
            del i
        self.showTotalSelector.setParent(None)
        self.showTotalSelector.setDisabled(False)
        self.showTotalSelector.stateChanged.connect(self.updateHistogram)
        
        del self.resultCheckBoxes
        del self.resultCheckBoxesLayout
        del self.resultScrollarea
        del self.layout_SArea
        
        self.resultScrollarea = QtWidgets.QScrollArea(self)
        self.resultScrollarea.setFixedWidth(250)
        self.resultScrollarea.setWidgetResizable(True)

        widget = QtWidgets.QWidget()
        self.resultScrollarea.setWidget(widget)
        self.layout_SArea = QtWidgets.QVBoxLayout(widget)

        self.resultCheckBoxes = QtWidgets.QGroupBox('Show Polymer Types:')
        self.resultCheckBoxesLayout = QtWidgets.QVBoxLayout()
        self.resultCheckBoxesLayout.addWidget(self.showTotalSelector)
        #generate new checkboxes 
        self.polymerCheckBoxes = []
        for index, polymer in enumerate(self.uniquePolymers):
            self.polymerCheckBoxes.append(QtWidgets.QCheckBox(self))
            self.polymerCheckBoxes[index].setText(polymer)
            self.resultCheckBoxesLayout.addWidget(self.polymerCheckBoxes[index])
            if polymer in self.lastSelectedCheckBoxNames:
                self.polymerCheckBoxes[index].setChecked(True)
            
            self.polymerCheckBoxes[index].stateChanged.connect(self.updateHistogram)
            self.polymerCheckBoxes[index].stateChanged.connect(self.createPolymerOverlay)

        self.resultCheckBoxesLayout.addStretch()
        self.resultCheckBoxes.setLayout(self.resultCheckBoxesLayout)
        
        self.layout_SArea.addWidget(self.resultCheckBoxes)
        
        self.menuLayout.addWidget(self.resultScrollarea)
        
        if self.currentAdditives is not None:
            self.typeHistogramCanvas.setCursor(QtGui.QCursor(QtCore.Qt.WhatsThisCursor))
            self.typeHistogramCanvas.mpl_connect('button_press_event', self.getAdditivePlot)
        
        self.exportbtn.setDisabled(False)
        
        self.navigationGroup.setEnabled(True)
        self.polymerComboBox.currentIndexChanged.disconnect()
        self.polymerComboBox.clear()
        self.polymerComboBox.addItems(self.uniquePolymers)
        self.polymerComboBox.currentIndexChanged.connect(self.displayNewPolymerType)
            
        self.polymerIndex = self.polymerComboBox.currentIndex()
        if self.lastSpectrumInFocus is not None:
            self.currentSpectrumIndex = self.lastSpectrumInFocus
            self.displayNewPolymerType(resetCurrentIndex=False)
        else:
            self.displayNewPolymerType()
        self.updateHistogram()
        self.createPolymerOverlay()

    
    def exportData(self):
        if self.expWindow is None:
            self.expWindow = ExportDialog(self)
            self.expWindow.show()
        else:
            self.expWindow.__init__(self)
            self.expWindow.show()
    
    def updatePolymerSpectrum(self, centerOn=True, highlightContour=True):
        specIndex = self.currentSpectrumIndex
        self.spec_ax.axis("on")
        self.spec_ax.clear()
        self.spec_ax.plot(self.spectra[:, 0], self.spectra[:, specIndex+1])
        self.spec_ax.tick_params(axis='both', which='both', labelsize=15)
        self.spec_ax.set_xlabel('Wavenumber (cm-1)', fontsize = 15)
        self.spec_ax.set_ylabel('Counts', fontsize = 15)
        self.spec_ax.set_title('ScanPoint Number {}, Size = {} µm'.format(specIndex+1, np.round(self.particlestats[self.currentParticleIndex][2], 1)))
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        self.spec_ax.set_xbound(100, (3400 if self.spectra[-1, 0] > 3400 else self.spectra[-1, 0]))
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        self.spec_ax.figure.canvas.draw()
        self.parent.centerOnRamanIndex(specIndex, centerOn=centerOn, highlightContour=highlightContour)
        self.parent.highLightRamanIndex(specIndex)
        self.lastSpectrumInFocus = specIndex
    
    def displayNewPolymerType(self, resetCurrentIndex=True):
        self.polymerIndex = self.polymerComboBox.currentIndex()
        self.particleSelector.setMaximum(len(self.indices[self.polymerIndex]))
        if resetCurrentIndex:
            self.particleSelector.setValue(1)
            self.spectrumSelector.setValue(1)
            self.spectrumSelector.setMaximum(len(self.particles2spectra[self.currentParticleIndex]))
            self.currentParticleIndex = self.indices[self.polymerIndex][self.particleSelector.value()-1]
            self.currentSpectrumIndex = self.particles2spectra[self.currentParticleIndex][self.spectrumSelector.value()-1]
            self.updatePolymerSpectrum(centerOn=True)
        else:    
            self.currentParticleIndex = self.indices[self.polymerIndex][self.particleSelector.value()-1]
            self.currentSpectrumIndex = self.particles2spectra[self.currentParticleIndex][self.spectrumSelector.value()-1]
            self.updatePolymerSpectrum(centerOn=False)
    
    def selectParticle(self, resetSpectrumCount=True):
        if self.particles2spectra is not None:
            self.currentParticleIndex = self.indices[self.polymerIndex][self.particleSelector.value()-1]
            self.spectrumSelector.setMaximum(len(self.particles2spectra[self.currentParticleIndex]))
            if resetSpectrumCount:
                self.spectrumSelector.setValue(1)
            self.currentSpectrumIndex = self.particles2spectra[self.currentParticleIndex][self.spectrumSelector.value()-1]
            self.updatePolymerSpectrum()
        else:
            print('no spectrum assignment found...')
    
    def selectSpectrum(self):
        if self.particles2spectra is not None:
            self.currentSpectrumIndex = self.particles2spectra[self.currentParticleIndex][self.spectrumSelector.value()-1]
            self.updatePolymerSpectrum()
    
    def updateHistogram(self):
        self.sizeHist_ax.clear()
        self.typeHist_ax.clear()
        
        self.typeHist_ax.axis('on')
        self.sizeHist_ax.axis('on')
  
        #draw the general histogram
        colorList = []
        if self.selOverlayBtn.isChecked():
            abundancyList = []
            for index, checkbox in enumerate(self.polymerCheckBoxes):
                if checkbox.isChecked():
                    abundancyList.append(self.typehistogram[index][1])
                    curColor = self.getColorFromName(self.typehistogram[index][0], base255 = False)
                    colorList.append(curColor)

        else:
            abundancyList = [i[1] for i in self.typehistogram]
            for polymer in self.typehistogram:
                curColor = self.getColorFromName(polymer[0], base255 = False)
                colorList.append(curColor)                    
                
        self.typeHist_ax.barh(range(len(abundancyList)), abundancyList, color=colorList)
        itemsInPlot = (len(abundancyList) if len(abundancyList) < self.dispResultSpinBox.value() else self.dispResultSpinBox.value())
        self.typeHist_ax.set_ylim([itemsInPlot, -1])    #plot in inverse order (have index 0 (highest abundancy) at top)
        
        ###add text labels
        self.histPlotTextLabels = []
        y_label_position = 0
        for index, i in enumerate(self.typehistogram):
            if not self.selOverlayBtn.isChecked() or self.polymerCheckBoxes[index].isChecked():
                if self.sorted_additives is None:
                    numads = ''
                else:
                    numads = len(np.unique(self.sorted_additives[index]))    
                    if numads == 0: 
                        numads = ''
                    else:
                        numads = '(' + str(numads) + ')'
                numpolymers = i[1]
                label = ('{} x ' + self.typehistogram[index][0] + ' {}').format(numpolymers, numads) 
                x_label_position = self.typeHist_ax.get_xlim()[1]*0.05
                self.histPlotTextLabels.append(self.typeHist_ax.text(x_label_position, y_label_position, label, fontsize = 15, rotation = 0, verticalalignment = 'bottom'))
                y_label_position += 1
            
        for label in self.histPlotTextLabels:
            pos = label.get_position()
            curLimits = self.typeHist_ax.get_ylim()
            if curLimits[1] < pos[1] < curLimits[0]:
                label.set_alpha(1)
            else:
                label.set_alpha(0)
                
        self.typeHist_ax.set_title('Polymer Type Distribution', fontsize = 15)
        self.typeHist_ax.tick_params(axis='y', which='both', left=False, labelleft=False)        
        self.typeHist_ax.tick_params(axis='both', which='both', labelsize=15)
        self.typeHist_ax.set_ylabel('Polymer Type', fontsize = 15)
        self.typeHist_ax.set_xlabel('Number', fontsize = 15)
        
        if len(self.typehistogram) > self.dispResultSpinBox.value():
            
            def wheelScroll(event):
                step = -0.05*event.step*self.dispResultSpinBox.value()
                ymin, ymax = self.typeHist_ax.get_ylim()
                if ymin > ymax:
                    ymin, ymax = ymax, ymin
                self.typeHist_ax.set_ylim([ymax+step, ymin+step])
                
                for label in self.histPlotTextLabels:
                    pos = label.get_position()
                    if ymin+step < pos[1] < ymax+step:
                        label.set_alpha(1)
                    else:
                        label.set_alpha(0)                
                self.typeHist_ax.figure.canvas.draw()
            
            self.typeHistogramCanvas.mpl_connect('scroll_event', wheelScroll)
        
        self.typeHist_ax.figure.canvas.draw()
        
        #general size histogram
        self.bins = np.logspace(0.1, 3, 20)
        self.sizes = [i[0] if np.isnan(i[2]) else i[2] for i in self.particlestats]      #extract long size (if ellipse fit is nan -> box fit)
        sizehist = np.histogram(self.sizes, self.bins)
        self.totalhistx = []
        for i in range(19):
            self.totalhistx.append(np.mean((sizehist[1][i], sizehist[1][i+1])))
        self.totalhisty = sizehist[0]
        
        self.sizeHist_ax.tick_params(axis='both', which='both', labelsize=15)
        self.sizeHist_ax.set_xlabel('Size (µm)', fontsize = 15)
        self.sizeHist_ax.set_ylabel('Number', fontsize = 15)
        self.sizeHist_ax.set_xlim(3, 1100)        
        self.sizeHist_ax.figure.canvas.draw()
        
        if self.showTotalSelector.isChecked():
            self.sizeHist_ax.semilogx(self.totalhistx, self.totalhisty, label = 'total')
            
        #get selected boxes
        selected = []
        for i in self.polymerCheckBoxes:
            if i.isChecked() == True:
                selected.append(i.text())
        
        for i in selected:
            sizes = [self.sizes[index] for index in range(len(self.sizes)) if self.currentPolymers[index] == i]
            sizehist = np.histogram(sizes, self.bins)
            self.sizeHist_ax.semilogx(self.totalhistx, sizehist[0], label = i, color = self.getColorFromName(i, base255 = False))    
        
        self.sizeHist_ax.legend(prop = {'size': 15})
        self.sizeHist_ax.tick_params(axis='both', which='both', labelsize=15)
        self.sizeHist_ax.set_xlabel('Size (µm)', fontsize = 15)
        self.sizeHist_ax.set_ylabel('Number', fontsize = 15)
        self.sizeHist_ax.set_xlim(3, 1100)        
        self.sizeHist_ax.figure.canvas.draw()
        
        self.lastSelectedCheckBoxNames = [checkbox.text() for checkbox in self.polymerCheckBoxes if checkbox.isChecked()]
        
     
    def darkenBackground(self):
        self.parent.darkenPixmap = self.darkenBtn.isChecked()
        
        if self.darkenBtn.isChecked():
            self.parent.scene().setBackgroundBrush(QtGui.QColor(5, 5, 5))
            self.parent.item.setOpacity(0.2)
        else:
            self.parent.scene().setBackgroundBrush(QtCore.Qt.darkGray)
            self.parent.item.setOpacity(1)

    def updateColorSeed(self):
        text, ok = QtWidgets.QInputDialog.getText(self, 'Color Seed', 'Enter New Seed here', text=self.colorSeed)
        if ok:
            self.colorSeed = text
            self.parent.dataset.colorSeed = text
            self.updateHistogram()
            self.createPolymerOverlay()

    def getColorFromName(self, name, base255=True):
        random.seed(self.colorSeed + name)
        hue = random.random()
        random.seed((self.colorSeed + name)*2)
        saturation = random.random()/4 + 0.75      #i.e., between 0.75 and 1
        random.seed((self.colorSeed + name)*3)
        value = random.random()/5 + 0.8     #i.e., between 0.8 and 1
        color = colorsys.hsv_to_rgb(hue, saturation, value)
        if base255:
            color = list(color)
            for i in range(3):
                color[i] = np.round(color[i]*255)
            color = tuple(color)
        return color
    
    def createPolymerOverlay(self):  
        if not self.noOverlayBtn.isChecked() and self.indices is not None:
            if len(self.indices) > 0:
#                ramansortindices = self.parent.dataset.ramanscansortindex
                
                alpha = (128 if self.transpBtn.isChecked() else 255)
                #get colors for each polymer type
                colorList = [QtGui.QColor(255, 255, 255, alpha=50)]*len(self.particleResults)
                legendItems = []
                    
                for index, indexList in enumerate(self.indices):
                    if self.fullOverlayBtn.isChecked() or (self.selOverlayBtn.isChecked() and self.polymerCheckBoxes[index].isChecked()):
                        color = self.getColorFromName(self.uniquePolymers[index], base255=True)
                        color = QtGui.QColor(color[0], color[1], color[2], alpha=alpha)
                        legendItems.append((self.uniquePolymers[index], color))
                        for i in indexList:
#                            colorList[ramansortindices[i]] = color
                            colorList[i] = color
            
            self.parent.contouritem.colorList = colorList
            self.parent.contouritem.update()
            
            self.parent.imparent.legend.items = legendItems
            self.parent.imparent.legend.update()
            self.parent.imparent.legend.show()
            
        else:
            self.parent.contouritem.colorList = []
            self.parent.contouritem.update()
            self.parent.imparent.legend.items = []
            self.parent.imparent.legend.update()
            self.parent.imparent.legend.hide()
            
    def show_hide_labels(self):
        hidden = self.hideLabelBtn.isChecked()
        for scanIndicator in self.parent.ramanscanitems:
            scanIndicator.hidden = hidden
            scanIndicator.update()
    
    def saveAnalysisResults(self):
        self.parent.dataset.results = {'polymers': self.spectraResults,
                                'hqis': self.hqis,
                                'additives': self.additiveResults,
                                'additive_hqis': self.addhqis}
        
        self.parent.dataset.resultParams = {'minHQI': self.hqiSpinBox.value(),
                                     'compHQI': self.compHqiSpinBox.value()}
#                                     'dispResults': self.dispResultSpinBox.value()}
        self.parent.dataset.save()
        print('saved dataset')
        
    
    def closeEvent(self, event):
        for window in [self.expWindow, self.additivePlot, self.importWindow]:
            try: window.close()
            except: pass
        self.saveAnalysisResults()
        event.accept()


class ExportDialog(QtWidgets.QWidget):
    def __init__(self, parent):
        super(ExportDialog, self).__init__()
        self.setWindowTitle('Export Options')
        self.setGeometry(200,200, 300, 300)
        
        self.parent = parent
        self.particles = self.parent.particlestats
        self.polymers = self.parent.particleResults
        self.additives = self.parent.currentAdditives
        self.hqis = self.parent.hqis
        
        self.layout = QtWidgets.QHBoxLayout()
        self.setLayout(self.layout)

        excelvbox = QtWidgets.QVBoxLayout()
        excelvbox.addWidget(QtWidgets.QLabel('Select Parameters for Export'))
        excelgroup = QtWidgets.QGroupBox("Export to Excel", self)
        
        self.exportOptions = ['Polymer Type (mandatory)', 'Additives', 'Long Size (µm)', 'Short Size (µm)', 'Area (µm²)', 'HQI', 'Size Classes']
        self.checkBoxes = []
        self.sizeClasses = [5, 10, 20, 50, 100, 1e6]
        self.directory = self.parent.parent.dataset.path
        
        for index, option in enumerate(self.exportOptions):
            self.checkBoxes.append(QtWidgets.QCheckBox(self))
            self.checkBoxes[-1].setText(option)
            self.checkBoxes[-1].setChecked(True)
            
            if option == 'Polymer Type (mandatory)':
                self.checkBoxes[-1].setEnabled(False)           #is mandatory!!!
            
            if option == 'Additives':
                if self.additives is None:
                    self.checkBoxes[-1].setEnabled(False)
                    self.checkBoxes[-1].setChecked(False)
                    
            excelvbox.addWidget(self.checkBoxes[-1])
        
        self.xlsFileName = QtWidgets.QLineEdit()
        self.xlsFileName.setText('{}_Particle_List'.format(self.parent.parent.dataset.name))
        excelvbox.addWidget(QtWidgets.QLabel('Filename:'))
        excelvbox.addWidget(self.xlsFileName)
        
        self.exlbtn = QtWidgets.QPushButton('Export to Excel')
        self.exlbtn.resize(self.exlbtn.sizeHint())
        self.exlbtn.clicked.connect(self.toExcel)
        
        excelvbox.addWidget(self.exlbtn)
        excelgroup.setLayout(excelvbox)
        
        self.layout.addWidget(excelgroup)

        sqlGroup = QtWidgets.QGroupBox('Export to SQL')
        sqlLayout = QtWidgets.QVBoxLayout()

        self.sqlbtn = QtWidgets.QPushButton('Export to SQL Database')
        self.sqlbtn.resize(self.sqlbtn.sizeHint()) 
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        if sqlEnabled:
            self.sqlbtn.clicked.connect(self.toSQL)
        else:
            self.sqlbtn.setDisabled(True)
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        self.sqlExport = None

        sqlLayout.addWidget(self.sqlbtn)
        sqlGroup.setLayout(sqlLayout)
        
        self.layout.addWidget(sqlGroup)
        self.show()
    
    def toExcel(self):
        requiredcolumns = []        
        self.sizes = np.round(np.array([i[0] if np.isnan(i[2]) else i[2] for i in self.particles]), 1)
        for box in self.checkBoxes:
            if box.isChecked() == True:
                if box.text() != 'Size Classes':
                    requiredcolumns.append(box.text())
                    if box.text() == 'Long Size (µm)':
                        longSize = self.sizes
                    elif box.text() == 'Short Size (µm)':
                        shortSize = np.round(np.array([i[1] if np.isnan(i[3]) else i[3] for i in self.particles]), 1)
                    elif box.text() == 'Area (µm²)':
                        area = np.array([np.round(float(entry[4]), 1) for entry in self.particles])
                else:
                    requiredcolumns.append('0 - 5 µm')
                    requiredcolumns.append('5 - 10 µm')
                    requiredcolumns.append('10 - 20 µm')
                    requiredcolumns.append('20 - 50 µm')
                    requiredcolumns.append('50 - 100 µm')
                    requiredcolumns.append('> 100 µm')
        
        self.finalData = np.array(['nothing to see here, iam a boring placeholder']*((self.polymers.shape[0]+1)*len(requiredcolumns))).reshape(((self.polymers.shape[0]+1), len(requiredcolumns)))

        #create header:
        self.finalData[0, :] = np.array(requiredcolumns)
        self.finalData[0, 0] = 'Polymer Type'
        
        rowindex = 1
        for polymer in np.unique(self.polymers):
            indices = np.where(self.polymers == polymer)[0]
            numentries = int(len(indices))
            
            for colindex, column in enumerate(requiredcolumns):
                if column == 'Polymer Type (mandatory)':
                    self.finalData[rowindex:rowindex+numentries, colindex] = self.polymers[indices]    
                if column == 'Additives':
                    self.finalData[rowindex:rowindex+numentries, colindex] = self.additives[indices]                
                if column == 'Long Size (µm)':
                    self.finalData[rowindex:rowindex+numentries, colindex] = longSize[indices]
                if column == 'Short Size (µm)':
                    self.finalData[rowindex:rowindex+numentries, colindex] = shortSize[indices]
                if column == 'Area (µm²)':
                    self.finalData[rowindex:rowindex+numentries, colindex] = area[indices]
                if column == 'HQI':
                    self.finalData[rowindex:rowindex+numentries, colindex] = self.hqis[indices]
            
            if '> 100 µm' in requiredcolumns:
                ##append size classes
                numPrevCols = len(requiredcolumns) - 6      #number of previous columns
                for tableindex, dataindex in enumerate(indices):    
                    for classindex in range(len(self.sizeClasses)):
                        upLimit = self.sizeClasses[classindex]
                        if classindex == 0: lowLimit = 0
                        else: lowLimit = self.sizeClasses[classindex-1]
                        curSize = self.sizes[dataindex]
                        
                        if  curSize > lowLimit and curSize <= upLimit:
                            self.finalData[rowindex+tableindex, numPrevCols + classindex] = np.int(1)
                        else:
                            self.finalData[rowindex+tableindex, numPrevCols + classindex] = np.int(0)               
            
            rowindex = rowindex + numentries
            
        #dump into excel file
        xlsname = self.directory + '//' + self.xlsFileName.text() + '.xlsx'
        print('exporting excel to:\n file name:  {} in directory: {}'.format(self.xlsFileName.text(), self.directory))
        validFileName = False
        incr = 1
        while not validFileName:
            if not os.path.exists(xlsname):
                validFileName = True
            else:
                xlsname = self.directory + self.xlsFileName.text() + ' {}.xlsx'.format(incr)
                incr += 1
        
        writer = pd.ExcelWriter(xlsname, engine = 'xlsxwriter')
        
        df = pd.DataFrame(self.finalData)
        df.to_excel(writer, sheet_name = 'Individual Particles', header = False, index = False)
        if  '> 100 µm' in requiredcolumns:
            #generate particle statistics report
            report = [['Polymer Type', '0 - 5 µm', '5 - 10 µm', '10 - 20 µm', '20 - 50 µm', '50 - 100 µm', '> 100 µm']]
            
            for polymer in np.unique(self.polymers):
                indices = np.where(self.polymers == polymer)[0]
                classes = np.array([0, 0, 0, 0, 0, 0])
                for size in self.sizes[indices]:
                    if size < 5: classes[0] += 1
                    elif size < 10: classes[1] += 1
                    elif size < 20: classes[2] += 1
                    elif size < 50: classes[3] += 1
                    elif size < 100: classes[4] += 1
                    else: classes[5] += 1
                report.append([polymer, classes[0], classes[1], classes[2], classes[3], classes[4], classes[5]])
            
            report = pd.DataFrame(np.array(report))
            report.to_excel(writer, sheet_name = 'Particle Statistics', header = False, index = False)
        QtWidgets.QMessageBox.about(self, 'Done!', 'Particle Data exported')

    def toSQL(self):
        self.sqlExport = SQLExport(self.parent)
        self.sqlExport.show()
        
    def closeEvent(self, event):
        if self.sqlExport is not None:
            self.sqlExport.close()
        event.accept()


class AdditiveViewer(QtWidgets.QWidget):
    def __init__(self, polymername, sortedAdditives):
        super(AdditiveViewer, self).__init__()
        self.setGeometry(200,200, 800, 600)
        self.setWindowTitle('Additives of {}'.format(polymername))
        
        self.layout = QtWidgets.QGridLayout()
        self.setLayout(self.layout)
        
        self.canvas = FigureCanvas(Figure(figsize=(5, 3)))
        self.ax = self.canvas.figure.subplots()
        
        self.layout.addWidget(self.canvas, 0, 0)
        
        self.ax.hist(sortedAdditives)
        self.ax.set_ylabel('Number', fontsize = 15)
        self.ax.tick_params(axis='both', which='both', labelsize=15)


if __name__ == '__main__':
    def run():
        app = QtWidgets.QApplication(sys.argv)
        meas = ParticleAnalysis(None)
        meas.showMaximized()
        ret = app.exec_()
    
    run()