parameters.py

#!/usr/bin/python3
# -*- coding: utf-8 -*-
import argparse
import datetime
import glob
import os
import time
import xml.dom.minidom
import zipfile
from io import BytesIO

import PyQt5.QtCore as core
import PyQt5.QtWidgets as widgets

import displaymod
import ecu
import elm
import json
import options
import version
from uiutils import *

__author__ = version.__author__
__copyright__ = version.__copyright__
__credits__ = version.__credits__
__license__ = version.__license__
__version__ = version.__version__
__maintainer__ = version.__maintainer__
__email__ = version.__email__
__status__ = version.__status__

_ = options.translator('ddt4all')


# TODO :
# Read freezeframe data // Done (partially)
# Check ELM response validity (mode + 0x40)

class ecuCommand(widgets.QDialog):
    def __init__(self, paramview, ecurequestparser, sds):
        super(ecuCommand, self).__init__(None)
        self.ecu = ecurequestparser
        self.ecu.requests.keys()
        self.sds = sds
        self.paramview = paramview

        layout = widgets.QVBoxLayout()
        self.req_combo = widgets.QComboBox()
        self.sds_combo = widgets.QComboBox()
        self.com_table = widgets.QTableWidget()
        self.rcv_table = widgets.QTableWidget()
        self.isotp_frame_edit = widgets.QLineEdit()
        self.com_table.setColumnCount(2)
        self.com_table.verticalHeader().hide()

        self.rcv_table.setColumnCount(2)
        self.rcv_table.verticalHeader().hide()
        layout.addWidget(widgets.QLabel("Start diagnostic session"))
        layout.addWidget(self.sds_combo)
        layout.addWidget(widgets.QLabel("Request"))
        layout.addWidget(self.req_combo)
        layout.addWidget(widgets.QLabel("Data to send"))
        layout.addWidget(self.com_table)
        layout.addWidget(widgets.QLabel("Computed ISOTP Frame"))
        layout.addWidget(self.isotp_frame_edit)
        checkbutton = widgets.QPushButton("Compute frame")
        layout.addWidget(checkbutton)
        layout.addWidget(widgets.QLabel("Data received"))
        layout.addWidget(self.rcv_table)
        button = widgets.QPushButton("Execute")
        layout.addWidget(button)
        button.clicked.connect(self.execute)
        self.setLayout(layout)
        self.reqs = []
        self.send_data = []
        self.current_request = None
        checkbutton.clicked.connect(self.recompute)

        reqlist = [a for a in self.ecu.requests.keys()]
        reqlist.sort()
        for k in reqlist:
            self.req_combo.addItem(k)
            self.reqs.append(k)
        self.req_combo.currentIndexChanged.connect(self.req_changed)

        for k, v in self.sds.items():
            self.sds_combo.addItem(k)

        text = "<center>This feature is experimental</center>\n"
        text += "<center>Use it at your own risk</center>\n"
        text += "<center>and if you know exactely what you do</center>\n"
        msgbox = widgets.QMessageBox()
        msgbox.setText(text)
        msgbox.exec_()

    def recompute(self):
        frame = self.compute_frame(False)
        self.isotp_frame_edit.setText(frame)

    def compute_frame(self, check=True):
        data_to_stream = {}
        for i in range(0, self.com_table.rowCount()):
            cellwidget = self.com_table.cellWidget(i, 1)
            reqkey = self.com_table.item(i, 0).text()
            if cellwidget:
                curtext = cellwidget.currentText()
            elif self.com_table.item(i, 1) is not None:
                curtext = self.com_table.item(i, 1).text()
            else:
                if check:
                    msgbox = widgets.QMessageBox()
                    msgbox.setText("Missing data in table")
                    msgbox.exec_()
                return "Missing input data"

            if curtext is None:
                # Error here
                data_to_stream[reqkey] = ""
            else:
                data_to_stream[reqkey] = curtext

        stream_to_send = " ".join(self.current_request.build_data_stream(data_to_stream))
        return stream_to_send

    def execute(self):
        if self.current_request is None:
            return

        sds = self.sds[self.sds_combo.currentText()]
        self.paramview.sendElm(sds)

        stream_to_send = self.compute_frame()
        reveived_stream = self.paramview.sendElm(stream_to_send, False, True)
        if reveived_stream.startswith("WRONG"):
            msgbox = widgets.QMessageBox()
            msgbox.setText("ECU returned error (check logview)")
            msgbox.exec_()
            return
        received_data = self.current_request.get_values_from_stream(reveived_stream)

        self.rcv_table.setRowCount(len(received_data))
        itemcount = 0
        for k, v in received_data.items():
            item = widgets.QTableWidgetItem(k)
            self.rcv_table.setItem(itemcount, 0, item)
            if v is not None:
                item = widgets.QTableWidgetItem(v)
            else:
                item = widgets.QTableWidgetItem("NONE")
            self.rcv_table.setItem(itemcount, 1, item)
            itemcount += 1

        self.rcv_table.resizeColumnsToContents()
        self.rcv_table.resizeRowsToContents()

    def req_changed(self, item):
        self.com_table.clear()
        self.com_table.setColumnCount(5)
        self.current_request = self.ecu.requests[self.reqs[item]]
        self.com_table.setRowCount(len(self.current_request.sendbyte_dataitems))
        self.send_data = []

        self.com_table.setHorizontalHeaderLabels(["Key", "Value", "Unit", "Data type", "Description"])
        self.rcv_table.setHorizontalHeaderLabels(["Key", "Value"])

        itemcount = 0
        for k, v in self.current_request.sendbyte_dataitems.items():
            self.send_data.append(k)
            ecudata = self.ecu.data[k]

            item = widgets.QTableWidgetItem(k)
            item.setFlags(item.flags() ^ core.Qt.ItemIsEditable)
            self.com_table.setItem(itemcount, 0, item)
            item = widgets.QTableWidgetItem(ecudata.unit)
            item.setFlags(item.flags() ^ core.Qt.ItemIsEditable)
            self.com_table.setItem(itemcount, 2, item)
            if ecudata.scaled:
                item = widgets.QTableWidgetItem("Numeric decimal")
            elif len(ecudata.items):
                item = widgets.QTableWidgetItem("List")
            elif ecudata.bytesascii:
                item = widgets.QTableWidgetItem("String")
            else:
                item = widgets.QTableWidgetItem("Hexadecimal")
            item.setFlags(item.flags() ^ core.Qt.ItemIsEditable)
            self.com_table.setItem(itemcount, 3, item)
            item = widgets.QTableWidgetItem(ecudata.description)
            item.setFlags(item.flags() ^ core.Qt.ItemIsEditable)
            self.com_table.setItem(itemcount, 4, item)

            if len(ecudata.items):
                items = ecudata.items.keys()
                combo = widgets.QComboBox()
                for item in items:
                    combo.addItem(item)
                self.com_table.setCellWidget(itemcount, 1, combo)
            itemcount += 1

        self.com_table.resizeColumnsToContents()
        self.com_table.resizeRowsToContents()
        self.rcv_table.setRowCount(0)


class paramWidget(widgets.QWidget):
    def __init__(self, parent, ddtfile, ecu_addr, ecu_name, logview, prot_status, canline):
        super(paramWidget, self).__init__(parent)
        self.pagename = ""
        self.logfile = None
        self.updatelog = False
        self.defaultdiagsessioncommand = "10C0"
        self.setFocusPolicy(core.Qt.ClickFocus)
        self.sds = {}
        self.canline = canline
        self.currentsession = ""
        self.layoutdict = None
        self.targetsdata = None
        self.main_protocol_status = prot_status
        self.scrollarea = parent
        self.refreshtime = 100
        self.layout = widgets.QHBoxLayout(self)
        self.logview = logview
        self.ddtfile = ddtfile
        self.ecurequestsparser = None
        self.panel = None
        self.uiscale = 8
        self.ecu_name = ecu_name
        self.button_requests = {}
        self.button_messages = {}
        self.displaydict = {}
        self.inputdict = {}
        self.presend = []
        self.currentwidget = None
        self.timer = core.QTimer()
        self.timer.setSingleShot(True)
        self.tester_timer = core.QTimer()
        self.tester_timer.setSingleShot(False)
        self.tester_timer.setInterval(1500)
        self.tester_timer.timeout.connect(self.tester_send)
        self.tester_timer.start()
        self.tester_presend_command = ""
        self.initXML()
        self.sliding = False
        self.mouseOldX = 0
        self.mouseOldY = 0
        self.current_screen = ''
        self.movingwidgets = []
        self.allow_parameters_update = True
        self.record_values = []
        self.record_keys = {}
        self.infobox = None

    def set_soft_fc(self, b):
        if options.elm is not None:
            options.elm.ATCFC0 = b

    def tester_send(self):
        if self.tester_presend_command == "":
            return

        # No need to send "tester_present" command if we're auto updating
        if options.auto_refresh:
            return

        self.sendElm(self.tester_presend_command, True)

    def saveEcu(self, name=None):
        if not name:
            filename_tuple = widgets.QFileDialog.getSaveFileName(self, _("Save ECU (keep '.json' extension)"),
                                                                 "./json/myecu.json", "*.json")

            filename = str(filename_tuple[0])

            if filename == "":
                return
        else:
            filename = name

        if self.parser == 'xml':
            layoutjs = dumpXML(self.ddtfile)
            js = self.ecurequestsparser.dumpJson()
            jsfile = open(filename, "w")
            jsfile.write(js)
            jsfile.close()
            jsfile = open(filename + ".layout", "w")
            jsfile.write(layoutjs)
            jsfile.close()
        elif self.parser == 'json':
            js = self.ecurequestsparser.dumpJson()
            jsfile = open(filename, "w")
            jsfile.write(js)
            jsfile.close()
            jsfile = open(filename + ".layout", "w")
            jsfile.write(json.dumps(self.layoutdict))
            jsfile.close()

        target_name = filename + ".targets"
        if self.targetsdata:
            js = json.dumps(self.targetsdata, indent=1)
            jsfile = open(target_name, "w")
            jsfile.write(js)
            jsfile.close()
        else:
            ecu_idents = options.ecu_scanner.ecu_database.getTargetsByHref(os.path.basename(self.ddtfile))
            if len(ecu_idents):
                js_targets = []
                for ecui in ecu_idents:
                    js_targets.append(ecui.dump())

                js = json.dumps(js_targets, indent=1)
                jsfile = open(target_name, "w")
                jsfile.write(js)
                jsfile.close()

    def renameCategory(self, oldname, newname):
        if oldname not in self.categories:
            print("Err, cannot rename ", oldname)
            return

        self.categories[newname] = self.categories.pop(oldname)

    def renameScreen(self, oldname, newname):
        if oldname not in self.xmlscreen:
            print("Err, cannot rename ", oldname)
            return

        self.xmlscreen[newname] = self.xmlscreen.pop(oldname)
        for key, cat in self.categories.items():
            if oldname in cat:
                cat.remove(oldname)
                cat.append(newname)
                break

    def createCategory(self, name):
        self.categories[name] = []

    def createScreen(self, name, category):
        self.categories[category].append(name)
        self.xmlscreen[name] = {}
        self.xmlscreen[name]['inputs'] = []
        self.xmlscreen[name]['buttons'] = []
        self.xmlscreen[name]['displays'] = []
        self.xmlscreen[name]['labels'] = []
        self.xmlscreen[name]['width'] = 8000
        self.xmlscreen[name]['height'] = 8000
        self.xmlscreen[name]['color'] = "rgb(0,0,30)"
        self.xmlscreen[name]['presend'] = []

    def addParameter(self, requestname, issend, screenname, item):
        if self.parser != "json":
            self.logview.append(
                "<font color=red>" + _("To be able to edit your screen, first export it in JSON format") + "</font>")
            return

        self.init(screenname)
        if issend:
            input_dict = {}
            input_dict['text'] = item
            input_dict['request'] = requestname
            input_dict['color'] = "rgb(200,200,200)"
            input_dict['fontcolor'] = "rgb(10,10,10)"
            input_dict['width'] = 3000
            input_dict['rect'] = {'width': 4000, 'height': 400, 'top': 100, 'left': 100}
            input_dict['font'] = {'name': "Arial", 'size': 12, 'bold': False, 'italic': False}
            self.layoutdict['screens'][screenname]['inputs'].append(input_dict)
        else:
            display_dict = {}
            display_dict['text'] = item
            display_dict['request'] = requestname
            display_dict['color'] = "rgb(200,200,200)"
            display_dict['width'] = 3000
            display_dict['rect'] = {'width': 4000, 'height': 400, 'top': 100, 'left': 100}
            display_dict['font'] = {'name': "Arial", 'size': 12, 'bold': False, 'italic': False}
            display_dict['fontcolor'] = "rgb(10,10,10)"
            self.layoutdict['screens'][screenname]['displays'].append(display_dict)
        self.init(screenname)

    def addButton(self):
        if self.parser != "json":
            self.logview.append(
                "<font color=red>" + _("To be able to edit your screen, first export it in JSON format") + "</font>")
            return

        cursorpos = self.panel.mapFromGlobal(gui.QCursor.pos())
        posx = cursorpos.x() * self.uiscale
        posy = cursorpos.y() * self.uiscale

        button_dict = {}
        button_dict['text'] = "Newbutton"
        button_dict['uniquename'] = "Newbutton_0"
        button_dict['color'] = "rgb(200,200,200)"
        button_dict['width'] = 3000
        button_dict['rect'] = {'width': 4000, 'height': 400, 'top': posy, 'left': posx}
        button_dict['font'] = {'name': "Arial", 'size': 12, 'bold': False, 'italic': False}
        button_dict['messages'] = []
        button_dict['send'] = []

        self.layoutdict['screens'][self.current_screen]['buttons'].append(button_dict)

        self.reinitScreen()

    def addLabel(self):
        if self.parser != "json":
            self.logview.append(
                "<font color=red>" + _("To be able to edit your screen, first export it in JSON format") + "</font>")
            return

        cursorpos = self.panel.mapFromGlobal(gui.QCursor.pos())
        posx = cursorpos.x() * self.uiscale
        posy = cursorpos.y() * self.uiscale

        label_dict = {}
        label_dict['text'] = "NewLabel"
        label_dict['color'] = "rgb(200,150,200)"
        label_dict['bbox'] = {'width': 4000, 'height': 400, 'top': posy, 'left': posx}
        label_dict['font'] = {'name': "Arial", 'size': 12, 'bold': False, 'italic': False}
        label_dict['fontcolor'] = "rgb(0,0,0)"
        label_dict['alignment'] = '2'

        self.layoutdict['screens'][self.current_screen]['labels'].append(label_dict)

        self.reinitScreen()

    def changeLabelColor(self):
        if self.currentwidget is None:
            return

        if isinstance(self.currentwidget, displaymod.labelWidget):
            colordialog = widgets.QColorDialog()
            color = colordialog.getColor()
            if color.isValid():
                self.currentwidget.jsondata['color'] = "rgb(%i,%i,%i)" % (color.red(), color.green(), color.blue())

        self.reinitScreen()

    def renameLabel(self):
        if self.currentwidget is None:
            return

        if isinstance(self.currentwidget, displaymod.labelWidget):
            for label in self.layoutdict['screens'][self.current_screen]['labels']:
                txt = label['text']
                if txt == self.currentwidget.text():
                    nln = widgets.QInputDialog.getText(self, 'DDT4All', _('Enter label name'))
                    if not nln[1]:
                        return
                    newlabelname = nln[0]
                    label['text'] = newlabelname
                    break

        self.reinitScreen()

    def removeElement(self):
        if self.currentwidget is None:
            return

        if isinstance(self.currentwidget, displaymod.labelWidget):
            count = 0
            for label in self.layoutdict['screens'][self.current_screen]['labels']:
                txt = label['text']
                if txt == self.currentwidget.text():
                    self.layoutdict['screens'][self.current_screen]['labels'].pop(count)
                    break
                count += 1

        if isinstance(self.currentwidget, displaymod.inputWidget):
            count = 0
            for inp in self.layoutdict['screens'][self.current_screen]['inputs']:
                txt = inp['text']
                if txt == self.currentwidget.qlabel.text():
                    self.layoutdict['screens'][self.current_screen]['inputs'].pop(count)
                    break
                count += 1

        if isinstance(self.currentwidget, displaymod.displayWidget):
            count = 0
            for display in self.layoutdict['screens'][self.current_screen]['displays']:
                txt = display['text']
                if txt == self.currentwidget.qlabel.text():
                    self.layoutdict['screens'][self.current_screen]['displays'].pop(count)
                    break
                count += 1

        if isinstance(self.currentwidget, displaymod.buttonRequest):
            count = 0
            for button in self.layoutdict['screens'][self.current_screen]['buttons']:
                txt = button['uniquename']
                if txt == self.currentwidget.uniquename:
                    self.layoutdict['screens'][self.current_screen]['buttons'].pop(count)
                    break
                count += 1

        self.reinitScreen()

    def mousePressEvent(self, event):
        if options.simulation_mode and options.mode_edit:
            self.currentwidget = None
            widget = widgets.QApplication.widgetAt(gui.QCursor.pos())

            found = False
            while widget.parent():
                if "ismovable" in dir(widget):
                    found = True
                    break
                widget = widget.parent()

            if event.button() == core.Qt.RightButton:
                self.currentwidget = widget
                popmenu = widgets.QMenu(self)
                addbuttonaction = widgets.QAction(_("Add button"), popmenu)
                addlabelaction = widgets.QAction(_("Add label"), popmenu)

                popmenu.addAction(addbuttonaction)
                popmenu.addAction(addlabelaction)
                addbuttonaction.triggered.connect(self.addButton)
                addlabelaction.triggered.connect(self.addLabel)

                if isinstance(widget, displaymod.labelWidget):
                    renamelabelaction = widgets.QAction(_("Rename label"), popmenu)
                    changecoloraction = widgets.QAction(_("Change color"), popmenu)
                    popmenu.addAction(renamelabelaction)
                    popmenu.addAction(changecoloraction)
                    renamelabelaction.triggered.connect(self.renameLabel)
                    changecoloraction.triggered.connect(self.changeLabelColor)
                if found:
                    removeaction = widgets.QAction(_("Remove element"), popmenu)
                    popmenu.addSeparator()
                    popmenu.addAction(removeaction)
                    removeaction.triggered.connect(self.removeElement)

                popmenu.exec_(gui.QCursor.pos())

            if event.button() == core.Qt.LeftButton:
                if not found or widget == self.panel:
                    for mv in self.movingwidgets:
                        mv.toggle_selected(False)
                    self.movingwidgets = []
                    return

                self.mouseOldX = event.globalX()
                self.mouseOldY = event.globalY()
                if not widget in self.movingwidgets:
                    self.movingwidgets.append(widget)
                widget.toggle_selected(True)
        else:
            if event.button() == core.Qt.LeftButton:
                self.sliding = True
                self.mouseOldX = event.globalX()
                self.mouseOldY = event.globalY()
                return

    def mouseReleaseEvent(self, event):
        if options.simulation_mode:
            if event.button() == core.Qt.RightButton:
                self.movingwidgets = []

        if event.button() == core.Qt.LeftButton:
            self.sliding = False

    def mouseMoveEvent(self, event):
        if options.simulation_mode and options.mode_edit == True:
            if len(self.movingwidgets):
                sizemodifier = widgets.QApplication.keyboardModifiers() == core.Qt.ControlModifier
                ratiomodifier = widgets.QApplication.keyboardModifiers() == core.Qt.ShiftModifier
                mouseX = event.globalX() - self.mouseOldX
                mouseY = event.globalY() - self.mouseOldY
                self.mouseOldX = event.globalX()
                self.mouseOldY = event.globalY()
                for mw in self.movingwidgets:
                    if sizemodifier:
                        mw.resize(mw.width() + mouseX, mw.height() + mouseY)
                    elif ratiomodifier and 'change_ratio' in dir(mw):
                        mw.change_ratio(mouseX)
                    else:
                        mw.move(mw.pos().x() + mouseX, mw.pos().y() + mouseY)
            return

        if self.sliding:
            mouseX = event.globalX() - self.mouseOldX
            mouseY = event.globalY() - self.mouseOldY
            self.mouseOldX = event.globalX()
            self.mouseOldY = event.globalY()
            self.scrollarea.verticalScrollBar().setValue(self.scrollarea.verticalScrollBar().value() - mouseY)
            self.scrollarea.horizontalScrollBar().setValue(self.scrollarea.horizontalScrollBar().value() - mouseX)

    def setRefreshTime(self, value):
        self.refreshtime = value

    def keyPressEvent(self, event):
        if event.key() == core.Qt.Key_Plus:
            self.zoomin_page()
        elif event.key() == core.Qt.Key_Minus:
            self.zoomout_page()
        else:
            event.ignore()
            return

        event.accept()

    def zoomin_page(self):
        self.uiscale -= 1
        if self.uiscale < 4:
            self.uiscale = 4

        self.allow_parameters_update = False
        self.init(self.current_screen)
        self.allow_parameters_update = True

    def zoomout_page(self):
        self.uiscale += 1
        if self.uiscale > 20:
            self.uiscale = 20

        self.allow_parameters_update = False
        self.init(self.current_screen)
        self.allow_parameters_update = True

    def init(self, screen, logfile=None):
        if logfile is not None:
            self.logfile = logfile
        self.updatelog = True
        if self.panel:
            self.layout.removeWidget(self.panel)
            self.panel.setParent(None)
            self.panel.close()
            self.panel.destroy()

        if not screen:
            return False

        scr_init = self.initScreen(screen)
        self.layout.addWidget(self.panel)
        return scr_init

    def command_editor(self):
        editor = ecuCommand(self, self.ecurequestsparser, self.sds)
        editor.exec_()

    def hexeditor(self):
        self.dialogbox = widgets.QWidget()
        wlayout = widgets.QVBoxLayout()
        diaglabel = widgets.QLabel(_("Diagnotic session"))
        inputlabel = widgets.QLabel(_("Input"))
        outputlabel = widgets.QLabel(_("Output"))

        diaglabel.setAlignment(core.Qt.AlignCenter)
        inputlabel.setAlignment(core.Qt.AlignCenter)
        outputlabel.setAlignment(core.Qt.AlignCenter)

        self.diagsession = widgets.QComboBox()
        rqsts = self.ecurequestsparser.requests.keys()
        self.request_editor_sds = {}

        self.diagsession.addItem(u"None")
        self.request_editor_sds[u'None'] = ""

        for diag in rqsts:
            if "start" in diag.lower() and "session" in diag.lower() and 'diag' in diag.lower():

                sds = self.ecurequestsparser.requests[diag]

                if u'Session Name' in sds.sendbyte_dataitems:
                    session_names = self.ecurequestsparser.data[u'Session Name']
                    for name in session_names.items.keys():
                        sds_stream = " ".join(sds.build_data_stream({u'Session Name': name}))
                        name = name + "[" + sds_stream + "]"
                        self.request_editor_sds[name] = sds_stream
                        self.diagsession.addItem(name)
                    print(sds.sendbyte_dataitems[u'Session Name'])

        if len(self.request_editor_sds) == 1:
            for k, v in self.sds.items():
                self.diagsession.addItem(k)
                self.request_editor_sds[k] = v

        self.input = widgets.QLineEdit()
        self.input.returnPressed.connect(self.send_manual_cmd)
        self.output = widgets.QLineEdit()
        self.output.setReadOnly(True)
        hexvalidaor = core.QRegExp(("^[\s0-9a-fA-F]+"))
        rev = gui.QRegExpValidator(hexvalidaor, self)
        self.input.setValidator(rev)
        wlayout.addWidget(diaglabel)
        wlayout.addWidget(self.diagsession)
        wlayout.addWidget(inputlabel)
        wlayout.addWidget(self.input)
        wlayout.addWidget(outputlabel)
        wlayout.addWidget(self.output)
        self.dialogbox.setLayout(wlayout)
        self.dialogbox.show()

    def changeSDS(self, qttext):
        diagsession = self.sds[qttext]
        self.defaultdiagsessioncommand = diagsession
        self.sendElm(diagsession)

    def send_manual_cmd(self):
        diagmode = self.diagsession.currentText()
        if diagmode:
            sds = diagmode
            if sds != u'None':
                rq = self.request_editor_sds[sds]
                self.sendElm(rq)

        command = self.input.text()
        ascii_cmd = str(command).upper().replace(" ", "")
        output = self.sendElm(ascii_cmd)
        self.output.setText(output)

    def setCanLine(self, line):
        self.canline = line
        self.initELM()

    def initELM(self):
        connection_status = self.ecurequestsparser.connect_to_hardware(self.canline)
        if not connection_status:
            self.logview.append("<font color='red'>Protocol not supported</font>")
            return

        if self.main_protocol_status:
            if self.ecurequestsparser.ecu_protocol == "CAN":
                self.startDiagnosticSession()
                txrx = "(Tx0x%s/Rx0x%s)@%iK" % (self.ecurequestsparser.ecu_send_id,
                                                self.ecurequestsparser.ecu_recv_id,
                                                self.ecurequestsparser.baudrate / 1000)
                self.main_protocol_status.setText("CAN " + txrx)
            elif self.ecurequestsparser.ecu_protocol == "KWP2000":
                self.startDiagnosticSession()
                self.main_protocol_status.setText("KWP @ " + self.ecurequestsparser.funcaddr)
            elif self.ecurequestsparser.ecu_protocol == "ISO8":
                self.main_protocol_status.setText("ISO8 @ " + self.ecurequestsparser.funcaddr)
            else:
                self.main_protocol_status.setText("??? @ " + self.ecurequestsparser.funcaddr)
                print("Protocol not supported : " + self.ecurequestsparser.ecu_protocol)

    def initJSON(self):
        self.layoutdict = None
        layoutfile = "./json/" + os.path.basename(self.ddtfile) + ".layout"
        targetsfile = "./json/" + os.path.basename(self.ddtfile) + ".targets"
        if os.path.exists(layoutfile):
            jsfile = open(layoutfile, "r")
            jsondata = jsfile.read()
            jsfile.close()
        else:
            zf = zipfile.ZipFile("ecu.zip", mode='r')
            layoutfile = self.ddtfile[5:] + ".layout"
            jsondata = zf.read(layoutfile)
        if os.path.exists(targetsfile):
            jsfile = open(targetsfile, "r")
            self.targetsdata = json.loads(jsfile.read())
            jsfile.close()
        else:
            # Fallback to main database (if zipped ECU)
            tgt = options.main_window.ecu_scan.ecu_database.getTargetsByHref(self.ddtfile[5:])
            if tgt:
                self.targetsdata = []
                for t in tgt:
                    self.targetsdata.append(t.dump())
            else:
                self.targetsdata = None

        self.layoutdict = json.loads(jsondata)

        if self.layoutdict is None:
            return

        self.categories = self.layoutdict['categories']
        self.xmlscreen = self.layoutdict['screens']

    def clearAll(self):
        self.categories = {}
        self.xmlscreen = {}
        self.parser = ''
        self.tester_presend_command = ""
        self.movingwidgets = []
        self.sliding = False
        self.sds = {}
        options.main_window.sdsready = False
        options.main_window.sdscombo.clear()

    def initXML(self):
        self.clearAll()

        if '.json' in self.ddtfile:
            self.parser = 'json'
            self.ecurequestsparser = ecu.Ecu_file(self.ddtfile, True)
            self.initJSON()
        else:
            self.parser = 'xml'
            xdom = xml.dom.minidom.parse(self.ddtfile)
            xdoc = xdom.documentElement

            if not xdoc:
                print(_("XML file not found : ") + self.ddtfile)
                return

            self.ecurequestsparser = ecu.Ecu_file(self.ddtfile, True)

            target = self.getChildNodesByName(xdoc, u"Target")[0]
            if not target:
                self.logview.append(_("Invalid DDT file"))
                return

            categories = self.getChildNodesByName(target, u"Categories")

            for cats in categories:
                xml_cats = self.getChildNodesByName(cats, u"Category")
                for category in xml_cats:
                    category_name = category.getAttribute(u"Name")
                    self.categories[category_name] = []
                    screens_name = self.getChildNodesByName(category, u"Screen")
                    for screen in screens_name:
                        screen_name = screen.getAttribute(u"Name")
                        self.xmlscreen[screen_name] = screen
                        self.categories[category_name].append(screen_name)

        if self.ecurequestsparser.funcaddr == '00':
            self.tester_presend_command = ""
            return

        self.defaultdiagsessioncommand = "10C0"

        options.main_window.sdscombo.addItem("After sales (default) [10C0]")
        self.sds["After sales (default) [10C0]"] = "10C0"

        # Init startDiagnosticSession combo
        for reqname, request in self.ecurequestsparser.requests.items():
            uppername = reqname.upper()
            if "START" in uppername and "DIAG" in uppername and "SESSION" in uppername:
                sessionnamefound = False
                for di in request.sendbyte_dataitems.keys():
                    dataitemnameupper = di.upper()
                    if u"SESSION" in dataitemnameupper and u"NAME" in dataitemnameupper:
                        ecu_data = self.ecurequestsparser.data[di]
                        for dataname, dataitem in ecu_data.items.items():
                            datastream = request.build_data_stream({di: dataname})
                            sdsrequest = ''.join(datastream)
                            dataname += u" [" + sdsrequest + u"]"
                            options.main_window.sdscombo.addItem(dataname)
                            self.sds[dataname] = sdsrequest
                            sessionnamefound = True

                if len(request.sendbyte_dataitems) == 0 or not sessionnamefound:
                    sdsrequest = "".join(request.build_data_stream({}))
                    dataname = reqname + u" [" + sdsrequest + u"]"
                    options.main_window.sdscombo.addItem(dataname)
                    self.sds[dataname] = sdsrequest

        for i in range(0, options.main_window.sdscombo.count()):
            itemname = options.main_window.sdscombo.itemText(i)
            if u'EXTENDED' in itemname.upper():
                options.main_window.sdscombo.setCurrentIndex(i)
                self.defaultdiagsessioncommand = self.sds[itemname]
                break

        options.main_window.sdsready = True
        self.initELM()

        reqk = self.ecurequestsparser.requests.keys()
        if self.ecurequestsparser.ecu_protocol == 'CAN':
            self.tester_presend_command = '3E'
            for k in reqk:
                if "tester" in k.lower() and "present" in k.lower():
                    self.tester_presend_command = self.ecurequestsparser.requests[k].sentbytes
                    break

    def sendElm(self, command, auto=False, force=False):
        if isinstance(command, bytes):
            command = command.decode("utf-8")
        elif not isinstance(command, str):
            command = str(command)

        elm_response = '00 ' * 70
        if not options.simulation_mode:
            if not options.elm.connectionStat():
                options.main_window.setConnected(False)
                self.logview.append(_("Connection to ELM lost, trying to reconnect..."))
                if elm.reconnect_elm():
                    if not options.elm.connectionStatus:
                        self.logview.append(_("Cannot reconnect..."))
                        return
                    # Must reinit ELM
                    self.initELM()
                    options.main_window.setConnected(True)

            if command.startswith('10'):
                self.logview.append('<font color=blue>' + _(
                    'Switching to session mode') + '</font> <font color=orange>%s</font>' % command)
                options.elm.request(command, cache=False)
                return

            if not force and not options.promode:
                # Allow read only modes
                if command[0:2] in options.safe_commands:
                    elm_response = options.elm.request(command, cache=False)
                    txt = '<font color=blue>' + _('Sending ELM request :') + '</font>'
                else:
                    txt = '<font color=green>' + _('Blocked ELM request :') + '</font>'
                    elm_response = "BLOCKED"
            else:
                # Pro mode *Watch out*
                elm_response = options.elm.request(command, cache=False)
                txt = '<font color=red>' + _('Sending ELM request:') + '</font>'
        else:
            if "1902" in command:
                elm_response = "59 40 FF 01 00 28 40 01 00 28 40 02 25 12 40 02 25 14 40 02 56 44 02 12 01 24 02 12 01 44 02 12 06 44 02 29 93 14 02 29 99 74 00 30 16 64 00 30 26 64 00 30 36 64 00 30 46 64 00 30 06 64 02 42 51 24 02 42 51 14 02 42 51 34 02 42 54 94 00 48 71 24 00 48 71 14 00 48 71 34 00 48 87 34 00 48 87 24 00 54 41 55 02 08 0F 15 02 08 0F 15 00 34 03 14 00 34 03 84 00 33 53 14 00 33 53 84 00 01 63 84 02 26 92 45 00 38 02 F4 00 38 03 16 80 38 00 94 00 67 11 24 00 67 10 94 00 67 21 24 00 67 20 94 00 67 31 24 00 67 30 94 00 67 41 24 00 67 40 94 01 20 51 24 02 42 AF 15 02 42 AF 04 02 14 61 14 02 14 64 94 00 62"
            # Only test data
            if self.ecurequestsparser.ecu_send_id == "745":
                if "2144" in command:
                    elm_response = "61 44 0A 00 24 14 0F 14 14 12 01 06 08 0A 0C 16 01 0E 10 14 32 14 0A FF FF FF FF"
                if "210B" in command:
                    elm_response = "61 0B 02 00 6C 10 80 00 02 01 02 01 02 00 00 05 FF FF FF FF"
                if "2147" in command:
                    elm_response = "61 47 00 30 50 50 20 1E 0A 20 FF FF FF"
                if "2126" in command:
                    elm_response = "61 26 14 0F 1C 28 64 5A 50 46 3C 32 28 1E 14 0A 00 5A 0A FF"
                if "2125" in command:
                    elm_response = "61 25 1E 0A 4C 87 14 40 14 06 0F FF FF"
                if "216B" in command:
                    elm_response = "61 6B 10 00"
            if '210A' in command:
                elm_response = "61 0A 16 32 32 02 58 00 B4 3C 3C 1E 3C 0A 0A 0A 0A 01 2C 5C 61 67 B5 BB C1 0A 5C"
            elif "17FF00" in command:
                # Test for ACU4
                elm_response = "57 06 90 07 41 90 08 41 90 42 52 90 08 42 90 07 42 90 7C 40"
                elm_response = "57 01 56 07 4D 00 00"
                # Test for EDC16
                # elm_response = "57 02 05 34 68 06 70 4F 09 A4 09 A4 17"
            elif "17FFFF" in command:
                elm_response = "7F 57 12"
            txt = '<font color=green>' + _('Sending simulated ELM request :') + '</font>'

            if not force and not options.promode:
                # Allow read only modes
                if command[0:2] not in options.safe_commands:
                    elm_response = "BLOCKED"

        if not auto or options.log_all:
            self.logview.append(txt + command)

        if elm_response.startswith('WRONG'):
            self.logview.append("<font color=red>" + _('Bad ELM response :') + "</font> " + elm_response)

        if not auto or options.log_all:
            self.logview.append(_('ELM response : ') + elm_response)

        return elm_response

    def getChildNodesByName(self, parent, name):
        nodes = []
        for node in parent.childNodes:
            if node.nodeType == node.ELEMENT_NODE and node.localName == name:
                nodes.append(node)
        return nodes

    def reinitScreen(self):
        self.init(self.current_screen)

    def initScreen(self, screen_name):
        self.movingwidgets = []
        self.sliding = False
        self.current_screen = screen_name
        self.presend = []
        self.timer.stop()

        try:
            self.timer.timeout.disconnect()
        except:
            pass

        if not screen_name in self.xmlscreen.keys():
            self.current_screen = ''
            return False

        screen = self.xmlscreen[screen_name]

        self.panel = displaymod.screenWidget(self, self.uiscale)

        if self.parser == 'xml':
            self.panel.initXML(screen)
        else:
            self.panel.initJson(screen)

        self.setContentsMargins(0, 0, 0, 0)
        self.resize(self.panel.screen_width + 50, self.panel.screen_height + 50)

        self.drawLabels(screen)
        self.drawDisplays(screen)
        self.drawInputs(screen)
        self.drawButtons(screen)
        self.updateDisplays(True)
        self.timer.timeout.connect(self.updateDisplays)
        return True

    def drawDisplays(self, screen):
        self.displaydict = {}
        if self.parser == 'xml':
            displays = self.getChildNodesByName(screen, "Display")

            for disp in displays:
                displaywidget = displaymod.displayWidget(self.panel, self.uiscale, self.ecurequestsparser)
                displaywidget.initXML(disp, self.displaydict)
        else:
            displays = screen['displays']
            for disp in displays:
                displaywidget = displaymod.displayWidget(self.panel, self.uiscale, self.ecurequestsparser)
                displaywidget.initJson(disp, self.displaydict)

    def drawButtons(self, screen):
        global smap
        self.button_requests = {}
        self.button_messages = {}
        if self.parser == 'xml':
            buttons = self.getChildNodesByName(screen, "Button")
            button_count = 0

            for button in buttons:
                qbutton = displaymod.buttonRequest(self.panel, self.uiscale, self.ecurequestsparser, button_count)
                qbutton.initXML(button)
                button_count += 1

                # Get messages
                for message in qbutton.messages:
                    messagetext = message.getAttribute("Text")
                    if not messagetext:
                        continue
                    if not qbutton.butname in self.button_messages:
                        self.button_messages[qbutton.butname] = []
                    self.button_messages[qbutton.butname].append(messagetext)

                # Get requests to send
                send = self.getChildNodesByName(button, "Send")
                if send:
                    sendlist = []
                    for snd in send:
                        smap = {}
                        delay = snd.getAttribute("Delay")
                        reqname = snd.getAttribute("RequestName")
                        smap['Delay'] = delay
                        smap['RequestName'] = reqname
                        sendlist.append(smap)
                    self.button_requests[qbutton.butname] = sendlist
                    tooltiptext = ''
                    for k in smap.keys():
                        tooltiptext += smap[k] + '\n'
                    tooltiptext = tooltiptext[0:-1]
                    qbutton.setToolTip(tooltiptext)

                qbutton.clicked.connect(lambda state, btn=qbutton.butname: self.buttonClicked(btn))
        else:
            button_count = 0
            for button in screen['buttons']:
                qbutton = displaymod.buttonRequest(self.panel, self.uiscale, self.ecurequestsparser, button_count)
                qbutton.initJson(button)
                button_count += 1

                self.button_messages = qbutton.messages

                if 'send' in button:
                    sendlist = button['send']
                    self.button_requests[qbutton.butname] = sendlist

                qbutton.clicked.connect(lambda state, btn=qbutton.uniquename: self.buttonClicked(btn))

    def drawLabels(self, screen):
        labeldict = {}
        if self.parser == 'xml':
            labels = self.getChildNodesByName(screen, "Label")
            for label in labels:
                qlabel = displaymod.labelWidget(self.panel, self.uiscale)
                qlabel.initXML(label)
                labeldict[qlabel] = qlabel.area
        else:
            for label in screen['labels']:
                qlabel = displaymod.labelWidget(self.panel, self.uiscale)
                qlabel.initJson(label)
                labeldict[qlabel] = qlabel.area

        # Raise the small labels so they're not hidden by bigger ones
        for key, value in [(k, labeldict[k]) for k in sorted(labeldict, key=labeldict.get, reverse=True)]:
            key.setParent(self.panel)
            key.raise_()

    def drawInputs(self, screen):
        self.inputdict = {}
        if self.parser == 'xml':
            inputs = self.getChildNodesByName(screen, "Input")
            for inp in inputs:
                inputwidget = displaymod.inputWidget(self.panel, self.uiscale, self.ecurequestsparser)
                inputwidget.initXML(inp, self.inputdict)
        else:
            for inp in screen['inputs']:
                inputwidget = displaymod.inputWidget(self.panel, self.uiscale, self.ecurequestsparser)
                inputwidget.initJson(inp, self.inputdict)

    def buttonClicked(self, txt):
        if not txt in self.button_requests:
            self.logview.append(u"<font color=red>" + _("Button request not found : ") + txt + u"</font>")
            return

        if txt in self.button_messages:
            messages = self.button_messages[txt]
            for message in messages:
                msgbox = widgets.QMessageBox()
                msgbox.setText(message)
                msgbox.exec_()

        request_list = self.button_requests[txt]
        for req in request_list:
            request_delay = float(req['Delay'].encode('ascii'))
            request_name = req['RequestName']
            self.logview.append(u'<font color=purple>' + _('Sending request :') + '</font>' + request_name)

            ecu_request = self.ecurequestsparser.get_request(request_name)
            if ecu_request is None:
                self.logview.append("Unknown request " + request_name)
                self.logview.append("Command aborted ")

            sendbytes_data_items = ecu_request.sendbyte_dataitems
            rcvbytes_data_items = ecu_request.dataitems

            elm_data_stream = ecu_request.get_formatted_sentbytes()

            logdict = {}
            for k in sendbytes_data_items.keys():
                dataitem = sendbytes_data_items[k]

                if not request_name in self.inputdict:
                    # Simple command with no user parameters
                    continue

                inputdict = self.inputdict[request_name]
                data = inputdict.getDataByName(k)

                if data == None:
                    # Keep values provided by sentbytes
                    # Confirmed with S3000 ECU request "ReadMemoryByAddress" value "MEMSIZE"
                    continue

                widget = data.widget
                ecu_data = data.data
                is_combo_widget = data.is_combo

                newval = ""
                if not is_combo_widget:
                    # Get input string from user line edit
                    input_value = widget.text()
                    newval = input_value
                else:
                    # Get value from user input combo box
                    combo_value = widget.currentText()
                    newval = combo_value
                    items_ref = ecu_data.items
                    input_value = hex(int(items_ref[combo_value]))[2:]

                elm_data_stream = ecu_data.setValue(input_value, elm_data_stream, dataitem,
                                                    ecu_request.ecu_file.endianness)
                logdict[dataitem.name] = newval

                if not elm_data_stream:
                    widget.setStyleSheet("background-color: red;color: black")
                    self.logview.append(_("Request aborted (look at red paramters entries): ") + str(input_value))
                    return

                widget.setStyleSheet("background-color: white;color: black")

            # Manage delay
            blocked = False
            self.logview.append("Delay %d ms" % request_delay)
            time.sleep(request_delay / 1000.0)
            # Then show received values
            elm_response = self.sendElm(' '.join(elm_data_stream))
            if elm_response == "BLOCKED":
                msgbox = widgets.QMessageBox()
                msgbox.setWindowTitle("For your safety")
                msgbox.setText("<center>BLOCKED COMMAND</center>\nActivate expert mode to unlock")
                msgbox.exec_()
                blocked = True

            if self.logfile is not None and len(logdict) > 0:
                self.logfile.write("\t@ " + datetime.datetime.now().strftime("%H:%M:%S.%f")[:-3] + "\n")
                if not blocked:
                    self.logfile.write("\tWriting parameter : \n\t\t")
                else:
                    self.logfile.write("\tBlocked writing parameter : \n\t\t")
                self.logfile.write(json.dumps(logdict))
                self.logfile.write("\n")
                self.logfile.flush()

            if blocked:
                return

            for key in rcvbytes_data_items.keys():
                if request_name in self.displaydict:
                    data_item = rcvbytes_data_items[key]
                    dd_ecu_data = self.ecurequestsparser.data[key]
                    value = dd_ecu_data.getDisplayValue(elm_response, data_item, self.ecurequestsparser.endianness)
                    dd_request_data = self.displaydict[request_name]
                    data = dd_request_data.getDataByName(key)

                    if value == None:
                        if data:
                            data.widget.setStyleSheet("background-color: red;color: black")
                        value = _("Invalid")
                    else:
                        if data:
                            data.widget.setStyleSheet("background-color: white;color: black")

                    if data:
                        data.widget.setText(value + ' ' + dd_ecu_data.unit)

        # Give some time to ECU to refresh parameters
        time.sleep(0.1)
        # Want to show result in log
        self.updatelog = True
        self.updateDisplays()

    def startDiagnosticSession(self, sds=""):
        if sds == "":
            sds = self.defaultdiagsessioncommand

        if self.currentsession == sds:
            return

        self.logview.append('<font color=blue>' + _('ECU uses SDS ') + '</font> <font color=orange>%s</font>' % sds)

        if self.ecurequestsparser.ecu_protocol == "CAN":
            if not options.simulation_mode:
                options.elm.start_session_can(sds)
            self.currentsession = sds
        elif self.ecurequestsparser.ecu_protocol == "KWP2000":
            if not options.simulation_mode:
                options.elm.start_session_iso(sds)
            self.currentsession = sds

    def getRequest(self, requests, reqname):
        if reqname in requests:
            return requests[reqname]
        for req in requests:
            if req.upper() == reqname.upper():
                return requests[req]
        return None

    def prepare_recording(self):
        self.record_values = []
        self.record_keys = []
        units = {}
        self.record_time = time.time()

        for request_name in self.displaydict.keys():
            request_data = self.displaydict[request_name]
            request = request_data.request
            if request.manualsend:
                continue

            for data_struct in request_data.data:
                ecu_data = data_struct.data
                data_item = request.dataitems[ecu_data.name]
                self.record_keys.append(data_item.name)
                units[data_item.name] = ecu_data.unit

        first_entry = []
        first_entry.append("Time (ms)")
        for key in self.record_keys:
            first_entry.append(key + "(" + units[key] + ")")

        self.record_values.append(first_entry)

    def get_record_size(self):
        return len(self.record_values)

    def export_record(self, filename):
        f = open(filename, "w")
        for line in self.record_values:
            f.write(';'.join(line))
            f.write("\n")

    def updateDisplays(self, update_inputs=False):
        if not self.panel:
            return

        if not self.allow_parameters_update:
            return
        start_time = time.time()
        # <Screen> <Send/> <Screen/> tag management
        # Manage pre send commands

        self.startDiagnosticSession()

        if not options.auto_refresh:
            for sendcom in self.panel.presend:
                delay = float(sendcom['Delay'])
                req_name = sendcom['RequestName']

                time.sleep(delay / 1000.)
                request = self.getRequest(self.ecurequestsparser.requests, req_name)
                if not request:
                    self.logview.append(_("Cannot call request ") + req_name)
                self.sendElm(request.sentbytes, True)

        self.recorddict = {}
        for request_name in self.displaydict.keys():
            self.updateDisplay(request_name, update_inputs)

        if options.auto_refresh:
            elapsed_time = time.time() - self.record_time
            current_time = '{:.3f}'.format(elapsed_time * 1000.0)
            lst = []
            lst.append(current_time)
            for key in self.record_keys:
                if key in self.recorddict.keys():
                    if key in self.recorddict:
                        lst.append(self.recorddict[key])
                    else:
                        lst.append("N/A")
            self.record_values.append(lst)

        elapsed_time = time.time() - start_time
        if self.infobox:
            self.infobox.setText('Update time {:.3f} ms'.format(elapsed_time * 1000.0))
        # Stop log
        self.updatelog = False
        if options.auto_refresh:
            self.timer.start(options.refreshrate)

    def updateDisplay(self, request_name, update_inputs=False):
        request_data = self.displaydict[request_name]
        request = request_data.request

        if request.manualsend:
            return

        ecu_bytes_to_send = request.sentbytes.encode('ascii')
        elm_response = self.sendElm(ecu_bytes_to_send, True)

        # Test data for offline test, below is UCT_X84 (roof) parameter misc timings and values
        # elm_response = "61 0A 16 32 32 02 58 00 B4 3C 3C 1E 3C 0A 0A 0A 0A 01 2C 5C 61 67 B5 BB C1 0A 5C"
        # Test data for DAE_X84
        # elm_response = "61 01 0E 0E FF FF 70 00 00 00 00 01 11 64 00 00 EC 00 00 00"
        # elm_response = "61 08 F3 0C 48 00 00 00 00 F3 0C 48 00 00 00 00 00 00 00 00 00 00 00 FF 48 FF FF"
        logdict = {}
        for data_struct in request_data.data:
            qlabel = data_struct.widget
            ecu_data = data_struct.data
            data_item = request.dataitems[ecu_data.name]
            value = ecu_data.getDisplayValue(elm_response, data_item, request.ecu_file.endianness)

            if value is None:
                qlabel.setStyleSheet("background-color: red;color: black")
                value = "NO DATA"
            else:
                qlabel.resetDefaultStyle()

            out_value = "N/A"
            if value is not None:
                out_value = value

            logdict[data_item.name] = out_value

            if options.auto_refresh:
                self.recorddict[data_item.name] = out_value.replace(".", ",")

            qlabel.setText(value + ' ' + ecu_data.unit)

            if update_inputs:
                for inputkey in self.inputdict:
                    input = self.inputdict[inputkey]
                    if ecu_data.name in input.datadict:
                        data = input.datadict[ecu_data.name]
                        if not data.is_combo:
                            data.widget.setText(value)
                        else:
                            combovalueindex = -1
                            for i in range(data.widget.count()):
                                itemname = data.widget.itemText(i)
                                if itemname == value:
                                    combovalueindex = i
                                    break

                            if combovalueindex != -1:
                                data.widget.setCurrentIndex(combovalueindex)

        if self.updatelog and self.logfile is not None:
            self.logfile.write("\t@ " + datetime.datetime.now().strftime("%H:%M:%S.%f")[:-3] + "\n")
            self.logfile.write("\tScreen : " + self.pagename + "\tRequest : " + request_name + "\n")
            string = json.dumps(logdict)
            self.logfile.write(u"\t\t" + string)
            self.logfile.write("\n")
            self.logfile.flush()

    def setCanTimeout(self):
        if not options.simulation_mode:
            options.elm.set_can_timeout(options.cantimeout)

    def clearDTC(self):
        self.logview.append(_("Clearing DTC information"))

        if "ClearDiagnosticInformation.All" in self.ecurequestsparser.requests:
            req = self.ecurequestsparser.requests["ClearDiagnosticInformation.All"]
            request = req.sentbytes
        elif "ClearDTC" in self.ecurequestsparser.requests:
            req = self.ecurequestsparser.requests["ClearDTC"]
            request = req.sentbytes
        elif "Clear Diagnostic Information" in self.ecurequestsparser.requests:
            req = self.ecurequestsparser.requests["Clear Diagnostic Information"]
            request = req.sentbytes
        else:
            self.logview.append(_("No ClearDTC request for that ECU, will send default 14FF00"))
            request = "14FF00"

        msgbox = widgets.QMessageBox()
        msgbox.setText(_("<center>You are about to clear diagnostic troubles codes</center>") +
                       _("<center>Ae you sure this is what you want.</center>"))

        msgbox.setStandardButtons(widgets.QMessageBox.Yes)
        msgbox.addButton(widgets.QMessageBox.Abort)
        msgbox.setDefaultButton(widgets.QMessageBox.Abort)
        userreply = msgbox.exec_()

        if userreply == widgets.QMessageBox.Abort:
            return

        self.startDiagnosticSession()

        # Extend timeout to not miss response
        if options.elm is not None:
            options.elm.set_can_timeout(1500)
        # Add a little delay
        time.sleep(.5)

        response = self.sendElm(request)
        if options.elm is not None:
            options.elm.set_can_timeout(options.cantimeout)

        self.dtcdialog.close()

        if 'WRONG' in response:
            msgbox = widgets.QMessageBox()
            msgbox.setText("There was an error clearing DTC")
            msgbox.exec_()
            options.main_window.logview.append("<font color=red>Clear DTC failed</font>")
        else:
            options.main_window.logview.append("<font color=green>Clear DTC successfully done</font>")

    def readDTC(self):
        if not options.simulation_mode:
            if self.ecurequestsparser.ecu_protocol == "CAN":
                options.elm.start_session_can('10C0')
            elif self.ecurequestsparser.ecu_protocol == "KWP2000":
                options.elm.start_session_iso('10C0')

        if "ReadDTCInformation.ReportDTC" in self.ecurequestsparser.requests:
            request = self.ecurequestsparser.requests["ReadDTCInformation.ReportDTC"]
        elif "ReadDTC" in self.ecurequestsparser.requests:
            request = self.ecurequestsparser.requests["ReadDTC"]
        else:
            self.logview.append("No ReadDTC request for that ECU")
            return

        shiftbytecount = request.shiftbytescount
        bytestosend = list(map(''.join, zip(*[iter(request.sentbytes)] * 2)))

        dtcread_command = ''.join(bytestosend)
        can_response = self.sendElm(dtcread_command)

        moredtcread_command = None
        if 'MoreDTC' in request.sendbyte_dataitems:
            moredtcfirstbyte = int(request.sendbyte_dataitems['MoreDTC'].firstbyte)
            bytestosend[moredtcfirstbyte - 1] = "FF"
            moredtcread_command = ''.join(str(bytestosend))

        if "RESPONSE" in can_response:
            msgbox = widgets.QMessageBox()
            msgbox.setText(_("Invalid response for ReadDTC command"))
            msgbox.exec_()
            return

        can_response = can_response.split(' ')

        # Handle error
        if can_response[0].upper() == "7F":
            msgbox = widgets.QMessageBox()
            msgbox.setText(_("Read DTC returned an error"))
            msgbox.exec_()
            return

        # Handle no DTC
        if len(can_response) == 2:
            # No errors
            msgbox = widgets.QMessageBox()
            msgbox.setText(_("No DTC"))
            msgbox.exec_()
            return

        # Ask for more DTCs, allow only 50 iterations in case infinite loop
        maxcount = 50
        if moredtcread_command is not None:
            while maxcount > 0:
                more_can_response = self.sendElm(moredtcread_command)
                more_can_response = more_can_response.split(' ')

                if more_can_response[0].upper() == 'WRONG':
                    break
                # Append result to build one frame
                can_response += more_can_response[2:]
                maxcount -= 1

        numberofdtc = int('0x' + can_response[1], 16)
        self.dtcdialog = widgets.QDialog(None)
        dtc_view = widgets.QTextEdit(None)
        dtc_view.setReadOnly(True)
        layout = widgets.QVBoxLayout()
        self.dtcdialog.setLayout(layout)
        clearbutton = widgets.QPushButton(_("Clear ALL DTC"))
        layout.addWidget(clearbutton)
        layout.addWidget(dtc_view)

        clearbutton.clicked.connect(self.clearDTC)

        html = '<h1 style="color:red">' + _('ECU trouble codes') + '</color></h1>'

        for dn in range(0, numberofdtc):
            html += '<h2 style="color:orange">DTC #%i' % dn + "</h2>"
            html += "<p>"
            for k in request.dataitems.keys():
                # Filter out NDTC, not needed
                if k == "NDTC":
                    continue
                ecu_data = self.ecurequestsparser.data[k]
                dataitem = request.dataitems[k]
                value_hex = ecu_data.getHexValue(' '.join(can_response), dataitem, request.ecu_file.endianness)

                if value_hex is None:
                    continue

                value = int('0x' + value_hex, 16)

                if len(ecu_data.items) > 0 and value in ecu_data.lists:
                    html += "<u>" + dataitem.name + "</u> : [" + str(value_hex) + "] " + ecu_data.lists[value] + "<br>"
                else:
                    html += "<u>" + dataitem.name + "</u> : " + str(value) + " [" + hex(value) + "]<br>"
            html += "</p>"
            can_response = can_response[shiftbytecount:]

        dtc_view.setHtml(html)
        self.dtcdialog.exec_()

    def requestNameChanged(self, oldname, newname):
        for screen_k, screen_data in self.layoutdict['screens'].items():
            print(_("Parsing screen "), screen_k)
            for input_data in screen_data['inputs']:
                if oldname == input_data['request']:
                    print("found request in input ", screen_k)
                    input_data['request'] = newname

            for display_data in screen_data['displays']:
                if oldname == display_data['request']:
                    print("found in display ", screen_k)
                    display_data['request'] = newname

            for button_data in screen_data['buttons']:
                if 'send' in button_data.keys():
                    for send in button_data['send']:
                        if send['RequestName'] == oldname:
                            print("found in button ", screen_k)
                            send['RequestName'] = newname

            for presend_data in screen_data['presend']:
                if 'RequestName' in presend_data:
                    if presend_data['RequestName'] == oldname:
                        print("found in presend ", screen_k)
                        presend_data['RequestName'] = newname

        self.reinitScreen()

    def dataNameChanged(self, oldname, newname):
        for screen_k, screen_data in self.layoutdict['screens'].items():
            print("Parsing screen ", screen_k)
            for input_data in screen_data['inputs']:
                if oldname == input_data['text']:
                    print("found data in input ", screen_k)
                    input_data['text'] = newname

            for display_data in screen_data['displays']:
                if oldname == display_data['text']:
                    print("found data in display ", screen_k)
                    display_data['text'] = newname

        self.reinitScreen()


def dumpXML(xmlname):
    try:
        xdom = xml.dom.minidom.parse(xmlname)
        xdoc = xdom.documentElement
    except:
        return None
    return dumpDOC(xdoc)


def dumpAddressing():
    xdom = xml.dom.minidom.parse("vehicles/GenericAddressing.xml")
    xdoc = xdom.documentElement
    dict = {}
    xml_funcs = getChildNodesByName(xdoc, u"Function")
    for func in xml_funcs:
        shortname = func.getAttribute(u"Name")
        address = func.getAttribute(u"Address")
        for name in getChildNodesByName(func, u"Name"):
            try:
                if str(name.firstChild.nodeValue).startswith("\n"):
                    longname = shortname
                else:
                    longname = name.firstChild.nodeValue
            except:
                longname = shortname
            dict[hex(int(address))[2:].upper()] = (shortname, longname)
            break

    js = json.dumps(dict, indent=True)
    f = open("address/addressing.json", "w")
    f.write(js)
    f.close()


def dumpDOC(xdoc):
    target = getChildNodesByName(xdoc, u"Target")
    if not target:
        return None

    target = target[0]
    js_screens = {}

    xml_categories = getChildNodesByName(target, u"Categories")

    xmlscreens = {}
    js_categories = {}

    for cats in xml_categories:
        xml_cats = getChildNodesByName(cats, u"Category")
        for category in xml_cats:
            category_name = category.getAttribute(u"Name")
            js_categories[category_name] = []
            screens_name = getChildNodesByName(category, u"Screen")
            for screen in screens_name:
                screen_name = screen.getAttribute(u"Name")
                xmlscreens[screen_name] = screen
                js_categories[category_name].append(screen_name)

    for scrname, screen in xmlscreens.items():
        screen_name = scrname
        js_screens[screen_name] = {}
        js_screens[screen_name]['width'] = int(screen.getAttribute("Width"))
        js_screens[screen_name]['height'] = int(screen.getAttribute("Height"))
        js_screens[screen_name]['color'] = colorConvert(screen.getAttribute("Color"))
        js_screens[screen_name]['labels'] = {}

        presend = []
        for elem in getChildNodesByName(screen, u"Send"):
            delay = elem.getAttribute('Delay')
            req_name = elem.getAttribute('RequestName')
            presend.append({"Delay": delay, "RequestName": req_name})
        js_screens[screen_name]['presend'] = presend

        labels = getChildNodesByName(screen, "Label")
        js_screens[screen_name]['labels'] = []
        for label in labels:
            label_dict = {}
            label_dict['text'] = label.getAttribute("Text")
            label_dict['color'] = colorConvert(label.getAttribute("Color"))
            label_dict['alignment'] = label.getAttribute("Alignment")
            label_dict['fontcolor'] = getFontColor(label)
            label_dict['bbox'] = getRectangleXML(getChildNodesByName(label, "Rectangle")[0])
            label_dict['font'] = getFontXML(label)
            js_screens[screen_name]['labels'].append(label_dict)

        displays = getChildNodesByName(screen, "Display")
        js_screens[screen_name]['displays'] = []
        for display in displays:
            display_dict = {}
            display_dict['text'] = display.getAttribute("DataName")
            display_dict['request'] = display.getAttribute("RequestName")
            display_dict['color'] = colorConvert(display.getAttribute("Color"))
            display_dict['width'] = int(display.getAttribute("Width"))
            display_dict['rect'] = getRectangleXML(getChildNodesByName(display, "Rectangle")[0])
            display_dict['font'] = getFontXML(display)
            display_dict['fontcolor'] = getFontColor(display)
            js_screens[screen_name]['displays'].append(display_dict)

        buttons = getChildNodesByName(screen, "Button")
        js_screens[screen_name]['buttons'] = []
        count = 0
        for button in buttons:
            button_dict = {}
            txt = button.getAttribute("Text")
            button_dict['text'] = txt
            button_dict['uniquename'] = txt + "_%i" % count
            button_dict['rect'] = getRectangleXML(getChildNodesByName(button, "Rectangle")[0])
            button_dict['font'] = getFontXML(button)

            xmlmessages = getChildNodesByName(button, "Message")
            messages = []
            # Get messages
            for message in xmlmessages:
                messages.append(message.getAttribute("Text"))

            button_dict['messages'] = messages

            send = getChildNodesByName(button, "Send")
            if send:
                sendlist = []
                for snd in send:
                    smap = {}
                    delay = snd.getAttribute("Delay")
                    reqname = snd.getAttribute("RequestName")
                    smap['Delay'] = delay
                    smap['RequestName'] = reqname
                    sendlist.append(smap)
                button_dict['send'] = sendlist

            js_screens[screen_name]['buttons'].append(button_dict)
            count += 1

        inputs = getChildNodesByName(screen, "Input")
        js_screens[screen_name]['inputs'] = []

        for input in inputs:
            input_dict = {}
            input_dict['text'] = input.getAttribute("DataName")
            input_dict['request'] = input.getAttribute("RequestName")
            color = input.getAttribute("Color")
            if not color:
                color = 0xAAAAAA
            input_dict['color'] = colorConvert(color)
            input_dict['fontcolor'] = getFontColor(input)
            input_dict['width'] = int(input.getAttribute("Width"))
            input_dict['rect'] = getRectangleXML(getChildNodesByName(input, "Rectangle")[0])
            input_dict['font'] = getFontXML(input)
            js_screens[screen_name]['inputs'].append(input_dict)

    return json.dumps({'screens': js_screens, 'categories': js_categories}, indent=1)


def zipConvertXML(dbfilename="ecu.zip"):
    zipoutput = BytesIO()
    options.ecus_dir = "./ecus"

    ecus_glob = glob.glob("ecus/*.xml")
    imgs = []
    if os.path.exists("./graphics"):
        for dirpath, dirs, files in os.walk("graphics/"):
            for file in files:
                if ".gif" in file.lower():
                    imgs.append(os.path.join(dirpath, file))

    if len(ecus_glob) == 0:
        print("Cannot zip database, no 'ecus' directory")
        return

    ecus = []
    for e in ecus_glob:
        if 'eculist.xml' in e.lower():
            continue
        ecus.append(e)

    i = 0
    print("Starting conversion")

    targetsdict = {}
    with zipfile.ZipFile(zipoutput, mode='w', compression=zipfile.ZIP_DEFLATED, allowZip64=True) as zf:
        for img in imgs:
            zf.write(img)
        for target in ecus:
            filename = target.replace(".xml", ".json")
            if filename.startswith("ecus/"):
                filename = filename.replace("ecus/", "")
            else:
                filename = filename.replace("ecus\\", "")
            print("Starting processing " + target + " " + str(i) + "/" + str(len(ecus)) + " to " + filename)

            i += 1
            layoutjs = dumpXML(target)
            if layoutjs is None:
                print("Skipping current file (cannot parse it)")
                continue
            ecufile = ecu.Ecu_file(target, True)
            js = ecufile.dumpJson()

            if js:
                zf.writestr(filename, str(js))

            if layoutjs:
                zf.writestr(filename + ".layout", str(layoutjs))

            ecu_ident = ecufile.dump_idents()

            targetsdict[filename] = ecu_ident

        print('Writing database')
        zf.writestr("db.json", str(json.dumps(targetsdict, indent=1)))

    print('Writing archive')
    with open(dbfilename, "wb") as f:
        f.write(zipoutput.getvalue())


def convertXML():
    options.ecus_dir = "./ecus"

    ecus = glob.glob("ecus/*.xml")
    ecus.remove("ecus/eculist.xml")
    i = 0

    print("Opening ECU Database...")
    ecu_database = ecu.Ecu_database()
    print("Starting conversion")

    for target in ecus:
        filename = target.replace(".xml", ".json")
        filename = filename.replace("ecus/", "json/")
        print("Starting processing " + target + " " + str(i) + "/" + str(len(ecus)) + " to " + filename)

        i += 1
        layoutjs = dumpXML(target)
        if layoutjs is None:
            print("Skipping current file (cannot parse it)")
            continue
        ecufile = ecu.Ecu_file(target, True)
        js = ecufile.dumpJson()

        if js:
            jsfile = open(filename, "w")
            jsfile.write(js)
            jsfile.close()

        if layoutjs:
            jsfile = open(filename + ".layout", "w")
            jsfile.write(layoutjs)
            jsfile.close()

        target_name = filename + ".targets"
        ecu_ident = ecu_database.getTargets(ecufile.ecuname)

        js_targets = []
        for ecui in ecu_ident:
            js_targets.append(ecui.dump())

        js = json.dumps(js_targets, indent=1)
        if js:
            jsfile = open(target_name, "w")
            jsfile.write(js)
            jsfile.close()


if __name__ == '__main__':
    parser = argparse.ArgumentParser()
    parser.add_argument('--dumpaddressing', action="store_true", default=None, help="Dump addressing")
    parser.add_argument('--convert', action="store_true", default=None, help="Convert all XML to JSON")
    parser.add_argument('--zipconvert', action="store_true", default=None,
                        help="Convert all XML to JSON in a Zip archive")
    args = parser.parse_args()

    if args.zipconvert:
        zipConvertXML()

    if args.convert:
        convertXML()

    if args.dumpaddressing:
        dumpAddressing()