FlatCAM/flatcamObjects/FlatCAMGeometry.py

# ##########################################################
# FlatCAM: 2D Post-processing for Manufacturing            #
# http://flatcam.org                                       #
# Author: Juan Pablo Caram (c)                             #
# Date: 2/5/2014                                           #
# MIT Licence                                              #
# ##########################################################

# ##########################################################
# File modified by: Marius Stanciu                         #
# ##########################################################

from shapely.geometry import Polygon, MultiPolygon, MultiLineString, LineString, LinearRing
import shapely.affinity as affinity

from camlib import Geometry

from flatcamObjects.FlatCAMObj import *
import FlatCAMTool

import ezdxf
import math
import numpy as np
from copy import deepcopy
import traceback

import gettext
import FlatCAMTranslation as fcTranslate
import builtins

fcTranslate.apply_language('strings')
if '_' not in builtins.__dict__:
    _ = gettext.gettext


class GeometryObject(FlatCAMObj, Geometry):
    """
    Geometric object not associated with a specific
    format.
    """
    optionChanged = QtCore.pyqtSignal(str)
    ui_type = GeometryObjectUI

    def __init__(self, name):
        self.decimals = self.app.decimals

        self.circle_steps = int(self.app.defaults["geometry_circle_steps"])

        FlatCAMObj.__init__(self, name)
        Geometry.__init__(self, geo_steps_per_circle=self.circle_steps)

        self.kind = "geometry"

        self.options.update({
            "plot": True,
            "cutz": -0.002,
            "vtipdia": 0.1,
            "vtipangle": 30,
            "travelz": 0.1,
            "feedrate": 5.0,
            "feedrate_z": 5.0,
            "feedrate_rapid": 5.0,
            "spindlespeed": 0,
            "dwell": True,
            "dwelltime": 1000,
            "multidepth": False,
            "depthperpass": 0.002,
            "extracut": False,
            "extracut_length": 0.1,
            "endz": 2.0,
            "endxy": '',
            "area_exclusion": False,
            "area_shape": "polygon",
            "area_strategy": "over",
            "area_overz": 1.0,

            "startz": None,
            "toolchange": False,
            "toolchangez": 1.0,
            "toolchangexy": "0.0, 0.0",
            "ppname_g": 'default',
            "z_pdepth": -0.02,
            "feedrate_probe": 3.0,
        })

        if "cnctooldia" not in self.options:
            if type(self.app.defaults["geometry_cnctooldia"]) == float:
                self.options["cnctooldia"] = self.app.defaults["geometry_cnctooldia"]
            else:
                try:
                    tools_string = self.app.defaults["geometry_cnctooldia"].split(",")
                    tools_diameters = [eval(a) for a in tools_string if a != '']
                    self.options["cnctooldia"] = tools_diameters[0] if tools_diameters else 0.0
                except Exception as e:
                    log.debug("FlatCAMObj.GeometryObject.init() --> %s" % str(e))

        self.options["startz"] = self.app.defaults["geometry_startz"]

        # this will hold the tool unique ID that is useful when having multiple tools with same diameter
        self.tooluid = 0

        '''
            self.tools = {}
            This is a dictionary. Each dict key is associated with a tool used in geo_tools_table. The key is the 
            tool_id of the tools and the value is another dict that will hold the data under the following form:
                {tooluid:   {
                            'tooldia': 1,
                            'offset': 'Path',
                            'offset_value': 0.0
                            'type': 'Rough',
                            'tool_type': 'C1',
                            'data': self.default_tool_data
                            'solid_geometry': []
                            }
                }
        '''
        self.tools = {}

        # this dict is to store those elements (tools) of self.tools that are selected in the self.geo_tools_table
        # those elements are the ones used for generating GCode
        self.sel_tools = {}

        self.offset_item_options = ["Path", "In", "Out", "Custom"]
        self.type_item_options = [_("Iso"), _("Rough"), _("Finish")]
        self.tool_type_item_options = ["C1", "C2", "C3", "C4", "B", "V"]

        # flag to store if the V-Shape tool is selected in self.ui.geo_tools_table
        self.v_tool_type = None

        # flag to store if the Geometry is type 'multi-geometry' meaning that each tool has it's own geometry
        # the default value is False
        self.multigeo = False

        # flag to store if the geometry is part of a special group of geometries that can't be processed by the default
        # engine of FlatCAM. Most likely are generated by some of tools and are special cases of geometries.
        self.special_group = None

        self.old_pp_state = self.app.defaults["geometry_multidepth"]
        self.old_toolchangeg_state = self.app.defaults["geometry_toolchange"]
        self.units_found = self.app.defaults['units']

        # this variable can be updated by the Object that generates the geometry
        self.tool_type = 'C1'

        # save here the old value for the Cut Z before it is changed by selecting a V-shape type tool in the tool table
        self.old_cutz = self.app.defaults["geometry_cutz"]

        self.fill_color = self.app.defaults['geometry_plot_line']
        self.outline_color = self.app.defaults['geometry_plot_line']
        self.alpha_level = 'FF'

        self.param_fields = {}

        # Event signals disconnect id holders
        self.mr = None
        self.mm = None
        self.kp = None

        # variables to be used in area exclusion
        self.cursor_pos = (0, 0)
        self.exclusion_areas_list = []
        self.first_click = False
        self.points = []
        self.poly_drawn = False

        # Attributes to be included in serialization
        # Always append to it because it carries contents
        # from predecessors.
        self.ser_attrs += ['options', 'kind', 'tools', 'multigeo']

    def build_ui(self):
        self.ui_disconnect()
        FlatCAMObj.build_ui(self)

        self.units = self.app.defaults['units']

        tool_idx = 0

        n = len(self.tools)
        self.ui.geo_tools_table.setRowCount(n)

        for tooluid_key, tooluid_value in self.tools.items():
            tool_idx += 1
            row_no = tool_idx - 1

            tool_id = QtWidgets.QTableWidgetItem('%d' % int(tool_idx))
            tool_id.setFlags(QtCore.Qt.ItemIsSelectable | QtCore.Qt.ItemIsEnabled)
            self.ui.geo_tools_table.setItem(row_no, 0, tool_id)  # Tool name/id

            # Make sure that the tool diameter when in MM is with no more than 2 decimals.
            # There are no tool bits in MM with more than 3 decimals diameter.
            # For INCH the decimals should be no more than 3. There are no tools under 10mils.

            dia_item = QtWidgets.QTableWidgetItem('%.*f' % (self.decimals, float(tooluid_value['tooldia'])))

            dia_item.setFlags(QtCore.Qt.ItemIsEnabled)

            offset_item = FCComboBox()
            for item in self.offset_item_options:
                offset_item.addItem(item)
            # offset_item.setStyleSheet('background-color: rgb(255,255,255)')
            idx = offset_item.findText(tooluid_value['offset'])
            offset_item.setCurrentIndex(idx)

            type_item = FCComboBox()
            for item in self.type_item_options:
                type_item.addItem(item)
            # type_item.setStyleSheet('background-color: rgb(255,255,255)')
            idx = type_item.findText(tooluid_value['type'])
            type_item.setCurrentIndex(idx)

            tool_type_item = FCComboBox()
            for item in self.tool_type_item_options:
                tool_type_item.addItem(item)
                # tool_type_item.setStyleSheet('background-color: rgb(255,255,255)')
            idx = tool_type_item.findText(tooluid_value['tool_type'])
            tool_type_item.setCurrentIndex(idx)

            tool_uid_item = QtWidgets.QTableWidgetItem(str(tooluid_key))

            plot_item = FCCheckBox()
            plot_item.setLayoutDirection(QtCore.Qt.RightToLeft)
            if self.ui.plot_cb.isChecked():
                plot_item.setChecked(True)

            self.ui.geo_tools_table.setItem(row_no, 1, dia_item)  # Diameter
            self.ui.geo_tools_table.setCellWidget(row_no, 2, offset_item)
            self.ui.geo_tools_table.setCellWidget(row_no, 3, type_item)
            self.ui.geo_tools_table.setCellWidget(row_no, 4, tool_type_item)

            # ## REMEMBER: THIS COLUMN IS HIDDEN IN OBJECTUI.PY ###
            self.ui.geo_tools_table.setItem(row_no, 5, tool_uid_item)  # Tool unique ID
            self.ui.geo_tools_table.setCellWidget(row_no, 6, plot_item)

            try:
                self.ui.tool_offset_entry.set_value(tooluid_value['offset_value'])
            except Exception as e:
                log.debug("build_ui() --> Could not set the 'offset_value' key in self.tools. Error: %s" % str(e))

        # make the diameter column editable
        for row in range(tool_idx):
            self.ui.geo_tools_table.item(row, 1).setFlags(QtCore.Qt.ItemIsSelectable |
                                                          QtCore.Qt.ItemIsEditable |
                                                          QtCore.Qt.ItemIsEnabled)

        # sort the tool diameter column
        # self.ui.geo_tools_table.sortItems(1)
        # all the tools are selected by default
        # self.ui.geo_tools_table.selectColumn(0)

        self.ui.geo_tools_table.resizeColumnsToContents()
        self.ui.geo_tools_table.resizeRowsToContents()

        vertical_header = self.ui.geo_tools_table.verticalHeader()
        # vertical_header.setSectionResizeMode(QtWidgets.QHeaderView.ResizeToContents)
        vertical_header.hide()
        self.ui.geo_tools_table.setVerticalScrollBarPolicy(QtCore.Qt.ScrollBarAlwaysOff)

        horizontal_header = self.ui.geo_tools_table.horizontalHeader()
        horizontal_header.setMinimumSectionSize(10)
        horizontal_header.setDefaultSectionSize(70)
        horizontal_header.setSectionResizeMode(0, QtWidgets.QHeaderView.Fixed)
        horizontal_header.resizeSection(0, 20)
        horizontal_header.setSectionResizeMode(1, QtWidgets.QHeaderView.Stretch)
        # horizontal_header.setColumnWidth(2, QtWidgets.QHeaderView.ResizeToContents)
        horizontal_header.setSectionResizeMode(3, QtWidgets.QHeaderView.ResizeToContents)
        horizontal_header.setSectionResizeMode(4, QtWidgets.QHeaderView.Fixed)
        horizontal_header.resizeSection(4, 40)
        horizontal_header.setSectionResizeMode(6, QtWidgets.QHeaderView.Fixed)
        horizontal_header.resizeSection(4, 17)
        # horizontal_header.setStretchLastSection(True)
        self.ui.geo_tools_table.setHorizontalScrollBarPolicy(QtCore.Qt.ScrollBarAlwaysOff)

        self.ui.geo_tools_table.setColumnWidth(0, 20)
        self.ui.geo_tools_table.setColumnWidth(4, 40)
        self.ui.geo_tools_table.setColumnWidth(6, 17)

        # self.ui.geo_tools_table.setSortingEnabled(True)

        self.ui.geo_tools_table.setMinimumHeight(self.ui.geo_tools_table.getHeight())
        self.ui.geo_tools_table.setMaximumHeight(self.ui.geo_tools_table.getHeight())

        # update UI for all rows - useful after units conversion but only if there is at least one row
        row_cnt = self.ui.geo_tools_table.rowCount()
        if row_cnt > 0:
            for r in range(row_cnt):
                self.update_ui(r)

        # select only the first tool / row
        selected_row = 0
        try:
            self.select_tools_table_row(selected_row, clearsel=True)
            # update the Geometry UI
            self.update_ui()
        except Exception as e:
            # when the tools table is empty there will be this error but once the table is populated it will go away
            log.debug(str(e))

        # disable the Plot column in Tool Table if the geometry is SingleGeo as it is not needed
        # and can create some problems
        if self.multigeo is False:
            self.ui.geo_tools_table.setColumnHidden(6, True)
        else:
            self.ui.geo_tools_table.setColumnHidden(6, False)

        self.set_tool_offset_visibility(selected_row)

        # HACK: for whatever reasons the name in Selected tab is reverted to the original one after a successful rename
        # done in the collection view but only for Geometry objects. Perhaps some references remains. Should be fixed.
        self.ui.name_entry.set_value(self.options['name'])
        self.ui_connect()

        self.ui.e_cut_entry.setDisabled(False) if self.ui.extracut_cb.get_value() else \
            self.ui.e_cut_entry.setDisabled(True)

        # set the text on tool_data_label after loading the object
        sel_rows = []
        sel_items = self.ui.geo_tools_table.selectedItems()
        for it in sel_items:
            sel_rows.append(it.row())
        if len(sel_rows) > 1:
            self.ui.tool_data_label.setText(
                "<b>%s: <font color='#0000FF'>%s</font></b>" % (_('Parameters for'), _("Multiple Tools"))
            )

    def set_ui(self, ui):
        FlatCAMObj.set_ui(self, ui)

        log.debug("GeometryObject.set_ui()")

        assert isinstance(self.ui, GeometryObjectUI), \
            "Expected a GeometryObjectUI, got %s" % type(self.ui)

        self.units = self.app.defaults['units'].upper()
        self.units_found = self.app.defaults['units']

        # populate preprocessor names in the combobox
        for name in list(self.app.preprocessors.keys()):
            self.ui.pp_geometry_name_cb.addItem(name)

        self.form_fields.update({
            "plot": self.ui.plot_cb,
            "cutz": self.ui.cutz_entry,
            "vtipdia": self.ui.tipdia_entry,
            "vtipangle": self.ui.tipangle_entry,
            "travelz": self.ui.travelz_entry,
            "feedrate": self.ui.cncfeedrate_entry,
            "feedrate_z": self.ui.feedrate_z_entry,
            "feedrate_rapid": self.ui.feedrate_rapid_entry,
            "spindlespeed": self.ui.cncspindlespeed_entry,
            "dwell": self.ui.dwell_cb,
            "dwelltime": self.ui.dwelltime_entry,
            "multidepth": self.ui.mpass_cb,
            "ppname_g": self.ui.pp_geometry_name_cb,
            "z_pdepth": self.ui.pdepth_entry,
            "feedrate_probe": self.ui.feedrate_probe_entry,
            "depthperpass": self.ui.maxdepth_entry,
            "extracut": self.ui.extracut_cb,
            "extracut_length": self.ui.e_cut_entry,
            "toolchange": self.ui.toolchangeg_cb,
            "toolchangez": self.ui.toolchangez_entry,
            "endz": self.ui.endz_entry,
            "endxy": self.ui.endxy_entry,
            "cnctooldia": self.ui.addtool_entry,
            "area_exclusion": self.ui.exclusion_cb,
            "area_shape":self.ui.area_shape_radio,
            "area_strategy": self.ui.strategy_radio,
            "area_overz": self.ui.over_z_entry,
        })

        self.param_fields.update({
            "vtipdia": self.ui.tipdia_entry,
            "vtipangle": self.ui.tipangle_entry,
            "cutz": self.ui.cutz_entry,
            "depthperpass": self.ui.maxdepth_entry,
            "multidepth": self.ui.mpass_cb,
            "travelz": self.ui.travelz_entry,
            "feedrate": self.ui.cncfeedrate_entry,
            "feedrate_z": self.ui.feedrate_z_entry,
            "feedrate_rapid": self.ui.feedrate_rapid_entry,
            "extracut": self.ui.extracut_cb,
            "extracut_length": self.ui.e_cut_entry,
            "spindlespeed": self.ui.cncspindlespeed_entry,
            "dwelltime": self.ui.dwelltime_entry,
            "dwell": self.ui.dwell_cb,
            "pdepth": self.ui.pdepth_entry,
            "pfeedrate": self.ui.feedrate_probe_entry,
        })
        # Fill form fields only on object create
        self.to_form()

        # update the changes in UI depending on the selected preprocessor in Preferences
        # after this moment all the changes in the Posprocessor combo will be handled by the activated signal of the
        # self.ui.pp_geometry_name_cb combobox
        self.on_pp_changed()

        self.ui.tipdialabel.hide()
        self.ui.tipdia_entry.hide()
        self.ui.tipanglelabel.hide()
        self.ui.tipangle_entry.hide()
        self.ui.cutz_entry.setDisabled(False)

        # store here the default data for Geometry Data
        self.default_data = {}
        self.default_data.update({
            "name": None,
            "plot": None,
            "cutz": None,
            "vtipdia": None,
            "vtipangle": None,
            "travelz": None,
            "feedrate": None,
            "feedrate_z": None,
            "feedrate_rapid": None,
            "dwell": None,
            "dwelltime": None,
            "multidepth": None,
            "ppname_g": None,
            "depthperpass": None,
            "extracut": None,
            "extracut_length": None,
            "toolchange": None,
            "toolchangez": None,
            "endz": None,
            "endxy": '',
            "area_exclusion": None,
            "area_shape": None,
            "area_strategy": None,
            "area_overz": None,
            "spindlespeed": 0,
            "toolchangexy": None,
            "startz": None
        })

        # fill in self.default_data values from self.options
        for def_key in self.default_data:
            for opt_key, opt_val in self.options.items():
                if def_key == opt_key:
                    self.default_data[def_key] = deepcopy(opt_val)

        if type(self.options["cnctooldia"]) == float:
            tools_list = [self.options["cnctooldia"]]
        else:
            try:
                temp_tools = self.options["cnctooldia"].split(",")
                tools_list = [
                    float(eval(dia)) for dia in temp_tools if dia != ''
                ]
            except Exception as e:
                log.error("GeometryObject.set_ui() -> At least one tool diameter needed. "
                          "Verify in Edit -> Preferences -> Geometry General -> Tool dia. %s" % str(e))
                return

        self.tooluid += 1

        if not self.tools:
            for toold in tools_list:
                new_data = deepcopy(self.default_data)
                self.tools.update({
                    self.tooluid: {
                        'tooldia': float('%.*f' % (self.decimals, float(toold))),
                        'offset': 'Path',
                        'offset_value': 0.0,
                        'type': _('Rough'),
                        'tool_type': self.tool_type,
                        'data': new_data,
                        'solid_geometry': self.solid_geometry
                    }
                })
                self.tooluid += 1
        else:
            # if self.tools is not empty then it can safely be assumed that it comes from an opened project.
            # Because of the serialization the self.tools list on project save, the dict keys (members of self.tools
            # are each a dict) are turned into strings so we rebuild the self.tools elements so the keys are
            # again float type; dict's don't like having keys changed when iterated through therefore the need for the
            # following convoluted way of changing the keys from string to float type
            temp_tools = {}
            for tooluid_key in self.tools:
                val = deepcopy(self.tools[tooluid_key])
                new_key = deepcopy(int(tooluid_key))
                temp_tools[new_key] = val

            self.tools.clear()
            self.tools = deepcopy(temp_tools)

        self.ui.tool_offset_entry.hide()
        self.ui.tool_offset_lbl.hide()

        # used to store the state of the mpass_cb if the selected preprocessor for geometry is hpgl
        self.old_pp_state = self.default_data['multidepth']
        self.old_toolchangeg_state = self.default_data['toolchange']

        if not isinstance(self.ui, GeometryObjectUI):
            log.debug("Expected a GeometryObjectUI, got %s" % type(self.ui))
            return

        self.ui.geo_tools_table.setupContextMenu()
        self.ui.geo_tools_table.addContextMenu(
            _("Add from Tool DB"), self.on_tool_add_from_db_clicked,
            icon=QtGui.QIcon(self.app.resource_location + "/plus16.png"))
        self.ui.geo_tools_table.addContextMenu(
            _("Copy"), self.on_tool_copy,
            icon=QtGui.QIcon(self.app.resource_location + "/copy16.png"))
        self.ui.geo_tools_table.addContextMenu(
            _("Delete"), lambda: self.on_tool_delete(all_tools=None),
            icon=QtGui.QIcon(self.app.resource_location + "/delete32.png"))

        # Show/Hide Advanced Options
        if self.app.defaults["global_app_level"] == 'b':
            self.ui.level.setText('<span style="color:green;"><b>%s</b></span>' % _('Basic'))

            self.ui.geo_tools_table.setColumnHidden(2, True)
            self.ui.geo_tools_table.setColumnHidden(3, True)
            # self.ui.geo_tools_table.setColumnHidden(4, True)
            self.ui.addtool_entry_lbl.hide()
            self.ui.addtool_entry.hide()
            self.ui.addtool_btn.hide()
            self.ui.copytool_btn.hide()
            self.ui.deltool_btn.hide()
            # self.ui.endz_label.hide()
            # self.ui.endz_entry.hide()
            self.ui.fr_rapidlabel.hide()
            self.ui.feedrate_rapid_entry.hide()
            self.ui.extracut_cb.hide()
            self.ui.e_cut_entry.hide()
            self.ui.pdepth_label.hide()
            self.ui.pdepth_entry.hide()
            self.ui.feedrate_probe_label.hide()
            self.ui.feedrate_probe_entry.hide()
        else:
            self.ui.level.setText('<span style="color:red;"><b>%s</b></span>' % _('Advanced'))

        self.ui.e_cut_entry.setDisabled(False) if self.app.defaults['geometry_extracut'] else \
            self.ui.e_cut_entry.setDisabled(True)
        self.ui.extracut_cb.toggled.connect(lambda state: self.ui.e_cut_entry.setDisabled(not state))

        self.ui.plot_cb.stateChanged.connect(self.on_plot_cb_click)
        self.ui.generate_cnc_button.clicked.connect(self.on_generatecnc_button_click)
        self.ui.paint_tool_button.clicked.connect(lambda: self.app.paint_tool.run(toggle=False))
        self.ui.generate_ncc_button.clicked.connect(lambda: self.app.ncclear_tool.run(toggle=False))
        self.ui.pp_geometry_name_cb.activated.connect(self.on_pp_changed)

        self.ui.tipdia_entry.valueChanged.connect(self.update_cutz)
        self.ui.tipangle_entry.valueChanged.connect(self.update_cutz)

        self.ui.addtool_from_db_btn.clicked.connect(self.on_tool_add_from_db_clicked)
        self.ui.apply_param_to_all.clicked.connect(self.on_apply_param_to_all_clicked)
        self.ui.cutz_entry.returnPressed.connect(self.on_cut_z_changed)

        self.ui.add_area_button.clicked.connect(self.on_add_area_click)
        self.ui.delete_area_button.clicked.connect(self.on_clear_area_click)

    def on_cut_z_changed(self):
        self.old_cutz = self.ui.cutz_entry.get_value()

    def set_tool_offset_visibility(self, current_row):
        if current_row is None:
            return
        try:
            tool_offset = self.ui.geo_tools_table.cellWidget(current_row, 2)
            if tool_offset is not None:
                tool_offset_txt = tool_offset.currentText()
                if tool_offset_txt == 'Custom':
                    self.ui.tool_offset_entry.show()
                    self.ui.tool_offset_lbl.show()
                else:
                    self.ui.tool_offset_entry.hide()
                    self.ui.tool_offset_lbl.hide()
        except Exception as e:
            log.debug("set_tool_offset_visibility() --> " + str(e))
            return

    def on_offset_value_edited(self):
        """
        This will save the offset_value into self.tools storage whenever the offset value is edited
        :return:
        """

        for current_row in self.ui.geo_tools_table.selectedItems():
            # sometime the header get selected and it has row number -1
            # we don't want to do anything with the header :)
            if current_row.row() < 0:
                continue
            tool_uid = int(self.ui.geo_tools_table.item(current_row.row(), 5).text())
            self.set_tool_offset_visibility(current_row.row())

            for tooluid_key, tooluid_value in self.tools.items():
                if int(tooluid_key) == tool_uid:
                    try:
                        tooluid_value['offset_value'] = float(self.ui.tool_offset_entry.get_value())
                    except ValueError:
                        # try to convert comma to decimal point. if it's still not working error message and return
                        try:
                            tooluid_value['offset_value'] = float(
                                self.ui.tool_offset_entry.get_value().replace(',', '.')
                            )
                        except ValueError:
                            self.app.inform.emit('[ERROR_NOTCL] %s' %
                                                 _("Wrong value format entered, use a number."))
                            return

    def ui_connect(self):
        # on any change to the widgets that matter it will be called self.gui_form_to_storage which will save the
        # changes in geometry UI
        for i in self.param_fields:
            current_widget = self.param_fields[i]
            if isinstance(current_widget, FCCheckBox):
                current_widget.stateChanged.connect(self.gui_form_to_storage)
            elif isinstance(current_widget, FCComboBox):
                current_widget.currentIndexChanged.connect(self.gui_form_to_storage)
            elif isinstance(current_widget, FloatEntry) or isinstance(current_widget, LengthEntry) or \
                    isinstance(current_widget, FCEntry) or isinstance(current_widget, IntEntry):
                current_widget.editingFinished.connect(self.gui_form_to_storage)
            elif isinstance(current_widget, FCSpinner) or isinstance(current_widget, FCDoubleSpinner):
                current_widget.returnPressed.connect(self.gui_form_to_storage)

        for row in range(self.ui.geo_tools_table.rowCount()):
            for col in [2, 3, 4]:
                self.ui.geo_tools_table.cellWidget(row, col).currentIndexChanged.connect(
                    self.on_tooltable_cellwidget_change)

        # I use lambda's because the connected functions have parameters that could be used in certain scenarios
        self.ui.addtool_btn.clicked.connect(lambda: self.on_tool_add())

        self.ui.copytool_btn.clicked.connect(lambda: self.on_tool_copy())
        self.ui.deltool_btn.clicked.connect(lambda: self.on_tool_delete())

        # self.ui.geo_tools_table.currentItemChanged.connect(self.on_row_selection_change)
        self.ui.geo_tools_table.clicked.connect(self.on_row_selection_change)
        self.ui.geo_tools_table.horizontalHeader().sectionClicked.connect(self.on_row_selection_change)

        self.ui.geo_tools_table.itemChanged.connect(self.on_tool_edit)
        self.ui.tool_offset_entry.returnPressed.connect(self.on_offset_value_edited)

        for row in range(self.ui.geo_tools_table.rowCount()):
            self.ui.geo_tools_table.cellWidget(row, 6).clicked.connect(self.on_plot_cb_click_table)
        self.ui.plot_cb.stateChanged.connect(self.on_plot_cb_click)

        # common parameters update
        self.ui.pp_geometry_name_cb.currentIndexChanged.connect(self.update_common_param_in_storage)

    def ui_disconnect(self):

        # on any change to the widgets that matter it will be called self.gui_form_to_storage which will save the
        # changes in geometry UI
        for i in self.param_fields:
            # current_widget = self.ui.grid3.itemAt(i).widget()
            current_widget = self.param_fields[i]
            if isinstance(current_widget, FCCheckBox):
                try:
                    current_widget.stateChanged.disconnect(self.gui_form_to_storage)
                except (TypeError, AttributeError):
                    pass
            elif isinstance(current_widget, FCComboBox):
                try:
                    current_widget.currentIndexChanged.disconnect(self.gui_form_to_storage)
                except (TypeError, AttributeError):
                    pass
            elif isinstance(current_widget, LengthEntry) or isinstance(current_widget, IntEntry) or \
                    isinstance(current_widget, FCEntry) or isinstance(current_widget, FloatEntry):
                try:
                    current_widget.editingFinished.disconnect(self.gui_form_to_storage)
                except (TypeError, AttributeError):
                    pass
            elif isinstance(current_widget, FCSpinner) or isinstance(current_widget, FCDoubleSpinner):
                try:
                    current_widget.returnPressed.disconnect(self.gui_form_to_storage)
                except TypeError:
                    pass

        for row in range(self.ui.geo_tools_table.rowCount()):
            for col in [2, 3, 4]:
                try:
                    self.ui.geo_tools_table.cellWidget(row, col).currentIndexChanged.disconnect()
                except (TypeError, AttributeError):
                    pass

        try:
            self.ui.addtool_btn.clicked.disconnect()
        except (TypeError, AttributeError):
            pass

        try:
            self.ui.copytool_btn.clicked.disconnect()
        except (TypeError, AttributeError):
            pass

        try:
            self.ui.deltool_btn.clicked.disconnect()
        except (TypeError, AttributeError):
            pass

        try:
            self.ui.geo_tools_table.clicked.disconnect()
        except (TypeError, AttributeError):
            pass
        try:
            self.ui.geo_tools_table.horizontalHeader().sectionClicked.disconnect()
        except (TypeError, AttributeError):
            pass

        try:
            self.ui.geo_tools_table.itemChanged.disconnect()
        except (TypeError, AttributeError):
            pass

        try:
            self.ui.tool_offset_entry.returnPressed.disconnect()
        except (TypeError, AttributeError):
            pass

        for row in range(self.ui.geo_tools_table.rowCount()):
            try:
                self.ui.geo_tools_table.cellWidget(row, 6).clicked.disconnect()
            except (TypeError, AttributeError):
                pass

        try:
            self.ui.plot_cb.stateChanged.disconnect()
        except (TypeError, AttributeError):
            pass

    def on_row_selection_change(self):
        self.update_ui()

    def update_ui(self, row=None):
        self.ui_disconnect()

        if row is None:
            sel_rows = []
            sel_items = self.ui.geo_tools_table.selectedItems()
            for it in sel_items:
                sel_rows.append(it.row())
        else:
            sel_rows = row if type(row) == list else [row]

        if not sel_rows:
            sel_rows = [0]

        for current_row in sel_rows:
            self.set_tool_offset_visibility(current_row)

            # populate the form with the data from the tool associated with the row parameter
            try:
                item = self.ui.geo_tools_table.item(current_row, 5)
                if type(item) is not None:
                    tooluid = int(item.text())
                else:
                    self.ui_connect()
                    return
            except Exception as e:
                log.debug("Tool missing. Add a tool in Geo Tool Table. %s" % str(e))
                self.ui_connect()
                return

            # update the QLabel that shows for which Tool we have the parameters in the UI form
            if len(sel_rows) == 1:
                self.ui.tool_data_label.setText(
                    "<b>%s: <font color='#0000FF'>%s %d</font></b>" % (_('Parameters for'), _("Tool"), tooluid)
                )

                # update the form with the V-Shape fields if V-Shape selected in the geo_tool_table
                # also modify the Cut Z form entry to reflect the calculated Cut Z from values got from V-Shape Fields
                try:
                    item = self.ui.geo_tools_table.cellWidget(current_row, 4)
                    if item is not None:
                        tool_type_txt = item.currentText()
                        self.ui_update_v_shape(tool_type_txt=tool_type_txt)
                    else:
                        self.ui_connect()
                        return
                except Exception as e:
                    log.debug("Tool missing in ui_update_v_shape(). Add a tool in Geo Tool Table. %s" % str(e))
                    return

                try:
                    # set the form with data from the newly selected tool
                    for tooluid_key, tooluid_value in list(self.tools.items()):
                        if int(tooluid_key) == tooluid:
                            for key, value in list(tooluid_value.items()):
                                if key == 'data':
                                    form_value_storage = tooluid_value['data']
                                    self.update_form(form_value_storage)
                                if key == 'offset_value':
                                    # update the offset value in the entry even if the entry is hidden
                                    self.ui.tool_offset_entry.set_value(tooluid_value['offset_value'])

                                if key == 'tool_type' and value == 'V':
                                    self.update_cutz()
                except Exception as e:
                    log.debug("GeometryObject.update_ui() -> %s " % str(e))

            else:
                self.ui.tool_data_label.setText(
                    "<b>%s: <font color='#0000FF'>%s</font></b>" % (_('Parameters for'), _("Multiple Tools"))
                )

        self.ui_connect()

    def on_tool_add(self, dia=None):
        self.ui_disconnect()

        self.units = self.app.defaults['units'].upper()

        if dia is not None:
            tooldia = dia
        else:
            tooldia = float(self.ui.addtool_entry.get_value())

        # construct a list of all 'tooluid' in the self.tools
        # tool_uid_list = []
        # for tooluid_key in self.tools:
        #     tool_uid_list.append(int(tooluid_key))
        tool_uid_list = [int(tooluid_key) for tooluid_key in self.tools]

        # find maximum from the temp_uid, add 1 and this is the new 'tooluid'
        max_uid = max(tool_uid_list) if tool_uid_list else 0
        self.tooluid = max_uid + 1

        tooldia = float('%.*f' % (self.decimals, tooldia))

        # here we actually add the new tool; if there is no tool in the tool table we add a tool with default data
        # otherwise we add a tool with data copied from last tool
        if self.tools:
            last_data = self.tools[max_uid]['data']
            last_offset = self.tools[max_uid]['offset']
            last_offset_value = self.tools[max_uid]['offset_value']
            last_type = self.tools[max_uid]['type']
            last_tool_type = self.tools[max_uid]['tool_type']
            last_solid_geometry = self.tools[max_uid]['solid_geometry']

            # if previous geometry was empty (it may happen for the first tool added)
            # then copy the object.solid_geometry
            if not last_solid_geometry:
                last_solid_geometry = self.solid_geometry

            self.tools.update({
                self.tooluid: {
                    'tooldia': tooldia,
                    'offset': last_offset,
                    'offset_value': last_offset_value,
                    'type': last_type,
                    'tool_type': last_tool_type,
                    'data': deepcopy(last_data),
                    'solid_geometry': deepcopy(last_solid_geometry)
                }
            })
        else:
            self.tools.update({
                self.tooluid: {
                    'tooldia': tooldia,
                    'offset': 'Path',
                    'offset_value': 0.0,
                    'type': _('Rough'),
                    'tool_type': 'C1',
                    'data': deepcopy(self.default_data),
                    'solid_geometry': self.solid_geometry
                }
            })

        self.tools[self.tooluid]['data']['name'] = self.options['name']

        self.ui.tool_offset_entry.hide()
        self.ui.tool_offset_lbl.hide()

        # we do this HACK to make sure the tools attribute to be serialized is updated in the self.ser_attrs list
        try:
            self.ser_attrs.remove('tools')
        except TypeError:
            pass
        self.ser_attrs.append('tools')

        self.app.inform.emit('[success] %s' % _("Tool added in Tool Table."))
        self.ui_connect()
        self.build_ui()

        # if there is no tool left in the Tools Table, enable the parameters GUI
        if self.ui.geo_tools_table.rowCount() != 0:
            self.ui.geo_param_frame.setDisabled(False)

    def on_tool_add_from_db_clicked(self):
        """
        Called when the user wants to add a new tool from Tools Database. It will create the Tools Database object
        and display the Tools Database tab in the form needed for the Tool adding
        :return: None
        """

        # if the Tools Database is already opened focus on it
        for idx in range(self.app.ui.plot_tab_area.count()):
            if self.app.ui.plot_tab_area.tabText(idx) == _("Tools Database"):
                self.app.ui.plot_tab_area.setCurrentWidget(self.app.tools_db_tab)
                break
        self.app.on_tools_database()
        self.app.tools_db_tab.ok_to_add = True
        self.app.tools_db_tab.buttons_frame.hide()
        self.app.tools_db_tab.add_tool_from_db.show()
        self.app.tools_db_tab.cancel_tool_from_db.show()

    def on_tool_from_db_inserted(self, tool):
        """
        Called from the Tools DB object through a App method when adding a tool from Tools Database
        :param tool: a dict with the tool data
        :return: None
        """

        self.ui_disconnect()
        self.units = self.app.defaults['units'].upper()

        tooldia = float(tool['tooldia'])

        # construct a list of all 'tooluid' in the self.tools
        tool_uid_list = []
        for tooluid_key in self.tools:
            tool_uid_item = int(tooluid_key)
            tool_uid_list.append(tool_uid_item)

        # find maximum from the temp_uid, add 1 and this is the new 'tooluid'
        if not tool_uid_list:
            max_uid = 0
        else:
            max_uid = max(tool_uid_list)
        self.tooluid = max_uid + 1

        tooldia = float('%.*f' % (self.decimals, tooldia))

        self.tools.update({
            self.tooluid: {
                'tooldia': tooldia,
                'offset': tool['offset'],
                'offset_value': float(tool['offset_value']),
                'type': tool['type'],
                'tool_type': tool['tool_type'],
                'data': deepcopy(tool['data']),
                'solid_geometry': self.solid_geometry
            }
        })

        self.tools[self.tooluid]['data']['name'] = self.options['name']

        self.ui.tool_offset_entry.hide()
        self.ui.tool_offset_lbl.hide()

        # we do this HACK to make sure the tools attribute to be serialized is updated in the self.ser_attrs list
        try:
            self.ser_attrs.remove('tools')
        except TypeError:
            pass
        self.ser_attrs.append('tools')

        self.ui_connect()
        self.build_ui()

        # if there is no tool left in the Tools Table, enable the parameters GUI
        if self.ui.geo_tools_table.rowCount() != 0:
            self.ui.geo_param_frame.setDisabled(False)

    def on_tool_copy(self, all_tools=None):
        self.ui_disconnect()

        # find the tool_uid maximum value in the self.tools
        uid_list = []
        for key in self.tools:
            uid_list.append(int(key))
        try:
            max_uid = max(uid_list, key=int)
        except ValueError:
            max_uid = 0

        if all_tools is None:
            if self.ui.geo_tools_table.selectedItems():
                for current_row in self.ui.geo_tools_table.selectedItems():
                    # sometime the header get selected and it has row number -1
                    # we don't want to do anything with the header :)
                    if current_row.row() < 0:
                        continue
                    try:
                        tooluid_copy = int(self.ui.geo_tools_table.item(current_row.row(), 5).text())
                        self.set_tool_offset_visibility(current_row.row())
                        max_uid += 1
                        self.tools[int(max_uid)] = deepcopy(self.tools[tooluid_copy])
                    except AttributeError:
                        self.app.inform.emit('[WARNING_NOTCL] %s' % _("Failed. Select a tool to copy."))
                        self.ui_connect()
                        self.build_ui()
                        return
                    except Exception as e:
                        log.debug("on_tool_copy() --> " + str(e))
                # deselect the table
                # self.ui.geo_tools_table.clearSelection()
            else:
                self.app.inform.emit('[WARNING_NOTCL] %s' % _("Failed. Select a tool to copy."))
                self.ui_connect()
                self.build_ui()
                return
        else:
            # we copy all tools in geo_tools_table
            try:
                temp_tools = deepcopy(self.tools)
                max_uid += 1
                for tooluid in temp_tools:
                    self.tools[int(max_uid)] = deepcopy(temp_tools[tooluid])
                temp_tools.clear()
            except Exception as e:
                log.debug("on_tool_copy() --> " + str(e))

        # if there are no more tools in geo tools table then hide the tool offset
        if not self.tools:
            self.ui.tool_offset_entry.hide()
            self.ui.tool_offset_lbl.hide()

        # we do this HACK to make sure the tools attribute to be serialized is updated in the self.ser_attrs list
        try:
            self.ser_attrs.remove('tools')
        except ValueError:
            pass
        self.ser_attrs.append('tools')

        self.ui_connect()
        self.build_ui()
        self.app.inform.emit('[success] %s' % _("Tool was copied in Tool Table."))

    def on_tool_edit(self, current_item):
        self.ui_disconnect()

        current_row = current_item.row()
        try:
            d = float(self.ui.geo_tools_table.item(current_row, 1).text())
        except ValueError:
            # try to convert comma to decimal point. if it's still not working error message and return
            try:
                d = float(self.ui.geo_tools_table.item(current_row, 1).text().replace(',', '.'))
            except ValueError:
                self.app.inform.emit('[ERROR_NOTCL] %s' % _("Wrong value format entered, use a number."))
                return

        tool_dia = float('%.*f' % (self.decimals, d))
        tooluid = int(self.ui.geo_tools_table.item(current_row, 5).text())

        self.tools[tooluid]['tooldia'] = tool_dia

        try:
            self.ser_attrs.remove('tools')
            self.ser_attrs.append('tools')
        except (TypeError, ValueError):
            pass

        self.app.inform.emit('[success] %s' % _("Tool was edited in Tool Table."))
        self.ui_connect()
        self.build_ui()

    def on_tool_delete(self, all_tools=None):
        self.ui_disconnect()

        if all_tools is None:
            if self.ui.geo_tools_table.selectedItems():
                for current_row in self.ui.geo_tools_table.selectedItems():
                    # sometime the header get selected and it has row number -1
                    # we don't want to do anything with the header :)
                    if current_row.row() < 0:
                        continue
                    try:
                        tooluid_del = int(self.ui.geo_tools_table.item(current_row.row(), 5).text())
                        self.set_tool_offset_visibility(current_row.row())

                        temp_tools = deepcopy(self.tools)
                        for tooluid_key in self.tools:
                            if int(tooluid_key) == tooluid_del:
                                # if the self.tools has only one tool and we delete it then we move the solid_geometry
                                # as a property of the object otherwise there will be nothing to hold it
                                if len(self.tools) == 1:
                                    self.solid_geometry = deepcopy(self.tools[tooluid_key]['solid_geometry'])
                                temp_tools.pop(tooluid_del, None)
                        self.tools = deepcopy(temp_tools)
                        temp_tools.clear()
                    except AttributeError:
                        self.app.inform.emit('[WARNING_NOTCL] %s' % _("Failed. Select a tool to delete."))
                        self.ui_connect()
                        self.build_ui()
                        return
                    except Exception as e:
                        log.debug("on_tool_delete() --> " + str(e))
                # deselect the table
                # self.ui.geo_tools_table.clearSelection()
            else:
                self.app.inform.emit('[WARNING_NOTCL] %s' % _("Failed. Select a tool to delete."))
                self.ui_connect()
                self.build_ui()
                return
        else:
            # we delete all tools in geo_tools_table
            self.tools.clear()

        self.app.plot_all()

        # if there are no more tools in geo tools table then hide the tool offset
        if not self.tools:
            self.ui.tool_offset_entry.hide()
            self.ui.tool_offset_lbl.hide()

        # we do this HACK to make sure the tools attribute to be serialized is updated in the self.ser_attrs list
        try:
            self.ser_attrs.remove('tools')
        except TypeError:
            pass
        self.ser_attrs.append('tools')

        self.ui_connect()
        self.build_ui()
        self.app.inform.emit('[success] %s' % _("Tool was deleted in Tool Table."))

        obj_active = self.app.collection.get_active()
        # if the object was MultiGeo and now it has no tool at all (therefore no geometry)
        # we make it back SingleGeo
        if self.ui.geo_tools_table.rowCount() <= 0:
            obj_active.multigeo = False
            obj_active.options['xmin'] = 0
            obj_active.options['ymin'] = 0
            obj_active.options['xmax'] = 0
            obj_active.options['ymax'] = 0

        if obj_active.multigeo is True:
            try:
                xmin, ymin, xmax, ymax = obj_active.bounds()
                obj_active.options['xmin'] = xmin
                obj_active.options['ymin'] = ymin
                obj_active.options['xmax'] = xmax
                obj_active.options['ymax'] = ymax
            except Exception:
                obj_active.options['xmin'] = 0
                obj_active.options['ymin'] = 0
                obj_active.options['xmax'] = 0
                obj_active.options['ymax'] = 0

        # if there is no tool left in the Tools Table, disable the parameters GUI
        if self.ui.geo_tools_table.rowCount() == 0:
            self.ui.geo_param_frame.setDisabled(True)

    def ui_update_v_shape(self, tool_type_txt):
        if tool_type_txt == 'V':
            self.ui.tipdialabel.show()
            self.ui.tipdia_entry.show()
            self.ui.tipanglelabel.show()
            self.ui.tipangle_entry.show()
            self.ui.cutz_entry.setDisabled(True)
            self.ui.cutzlabel.setToolTip(
                _("Disabled because the tool is V-shape.\n"
                  "For V-shape tools the depth of cut is\n"
                  "calculated from other parameters like:\n"
                  "- 'V-tip Angle' -> angle at the tip of the tool\n"
                  "- 'V-tip Dia' -> diameter at the tip of the tool \n"
                  "- Tool Dia -> 'Dia' column found in the Tool Table\n"
                  "NB: a value of zero means that Tool Dia = 'V-tip Dia'"
                )
            )
            self.ui.cutz_entry.setToolTip(
                _("Disabled because the tool is V-shape.\n"
                  "For V-shape tools the depth of cut is\n"
                  "calculated from other parameters like:\n"
                  "- 'V-tip Angle' -> angle at the tip of the tool\n"
                  "- 'V-tip Dia' -> diameter at the tip of the tool \n"
                  "- Tool Dia -> 'Dia' column found in the Tool Table\n"
                  "NB: a value of zero means that Tool Dia = 'V-tip Dia'"
                  )
            )

            self.update_cutz()
        else:
            self.ui.tipdialabel.hide()
            self.ui.tipdia_entry.hide()
            self.ui.tipanglelabel.hide()
            self.ui.tipangle_entry.hide()
            self.ui.cutz_entry.setDisabled(False)
            self.ui.cutzlabel.setToolTip(
                _("Cutting depth (negative)\n"
                  "below the copper surface."
                )
            )
            self.ui.cutz_entry.setToolTip('')

    def update_cutz(self):
        vdia = float(self.ui.tipdia_entry.get_value())
        half_vangle = float(self.ui.tipangle_entry.get_value()) / 2

        row = self.ui.geo_tools_table.currentRow()
        tool_uid_item = self.ui.geo_tools_table.item(row, 5)
        if tool_uid_item is None:
            return
        tool_uid = int(tool_uid_item.text())

        tool_dia_item = self.ui.geo_tools_table.item(row, 1)
        if tool_dia_item is None:
            return
        tooldia = float(tool_dia_item.text())

        try:
            new_cutz = (tooldia - vdia) / (2 * math.tan(math.radians(half_vangle)))
        except ZeroDivisionError:
            new_cutz = self.old_cutz

        new_cutz = float('%.*f' % (self.decimals, new_cutz)) * -1.0   # this value has to be negative

        self.ui.cutz_entry.set_value(new_cutz)

        # store the new CutZ value into storage (self.tools)
        for tooluid_key, tooluid_value in self.tools.items():
            if int(tooluid_key) == tool_uid:
                tooluid_value['data']['cutz'] = new_cutz

    def on_tooltable_cellwidget_change(self):
        cw = self.sender()
        # assert isinstance(cw, FCComboBox) or isinstance(cw, FCCheckBox),\
        #     "Expected a FCCombobox or a FCCheckbox got %s" % type(cw)
        cw_index = self.ui.geo_tools_table.indexAt(cw.pos())
        cw_row = cw_index.row()
        cw_col = cw_index.column()
        current_uid = int(self.ui.geo_tools_table.item(cw_row, 5).text())

        # store the text of the cellWidget that changed it's index in the self.tools
        for tooluid_key, tooluid_value in self.tools.items():
            if int(tooluid_key) == current_uid:
                cb_txt = cw.currentText()
                if cw_col == 2:
                    tooluid_value['offset'] = cb_txt
                    if cb_txt == 'Custom':
                        self.ui.tool_offset_entry.show()
                        self.ui.tool_offset_lbl.show()
                    else:
                        self.ui.tool_offset_entry.hide()
                        self.ui.tool_offset_lbl.hide()
                        # reset the offset_value in storage self.tools
                        tooluid_value['offset_value'] = 0.0
                elif cw_col == 3:
                    # force toolpath type as 'Iso' if the tool type is V-Shape
                    if self.ui.geo_tools_table.cellWidget(cw_row, 4).currentText() == 'V':
                        tooluid_value['type'] = _('Iso')
                        idx = self.ui.geo_tools_table.cellWidget(cw_row, 3).findText(_('Iso'))
                        self.ui.geo_tools_table.cellWidget(cw_row, 3).setCurrentIndex(idx)
                    else:
                        tooluid_value['type'] = cb_txt
                elif cw_col == 4:
                    tooluid_value['tool_type'] = cb_txt

                    # if the tool_type selected is V-Shape then autoselect the toolpath type as Iso
                    if cb_txt == 'V':
                        idx = self.ui.geo_tools_table.cellWidget(cw_row, 3).findText(_('Iso'))
                        self.ui.geo_tools_table.cellWidget(cw_row, 3).setCurrentIndex(idx)
                    else:
                        self.ui.cutz_entry.set_value(self.old_cutz)

                self.ui_update_v_shape(tool_type_txt=self.ui.geo_tools_table.cellWidget(cw_row, 4).currentText())

    def update_form(self, dict_storage):
        for form_key in self.form_fields:
            for storage_key in dict_storage:
                if form_key == storage_key:
                    try:
                        self.form_fields[form_key].set_value(dict_storage[form_key])
                    except Exception as e:
                        log.debug(str(e))

        # this is done here because those buttons control through OptionalInputSelection if some entry's are Enabled
        # or not. But due of using the ui_disconnect() status is no longer updated and I had to do it here
        self.ui.ois_dwell_geo.on_cb_change()
        self.ui.ois_mpass_geo.on_cb_change()
        self.ui.ois_tcz_geo.on_cb_change()

    def on_apply_param_to_all_clicked(self):
        if self.ui.geo_tools_table.rowCount() == 0:
            # there is no tool in tool table so we can't save the GUI elements values to storage
            log.debug("GeometryObject.gui_form_to_storage() --> no tool in Tools Table, aborting.")
            return

        self.ui_disconnect()

        row = self.ui.geo_tools_table.currentRow()
        if row < 0:
            row = 0

        # store all the data associated with the row parameter to the self.tools storage
        tooldia_item = float(self.ui.geo_tools_table.item(row, 1).text())
        offset_item = self.ui.geo_tools_table.cellWidget(row, 2).currentText()
        type_item = self.ui.geo_tools_table.cellWidget(row, 3).currentText()
        tool_type_item = self.ui.geo_tools_table.cellWidget(row, 4).currentText()

        offset_value_item = float(self.ui.tool_offset_entry.get_value())

        # this new dict will hold the actual useful data, another dict that is the value of key 'data'
        temp_tools = {}
        temp_dia = {}
        temp_data = {}

        for tooluid_key, tooluid_value in self.tools.items():
            for key, value in tooluid_value.items():
                if key == 'tooldia':
                    temp_dia[key] = tooldia_item
                # update the 'offset', 'type' and 'tool_type' sections
                if key == 'offset':
                    temp_dia[key] = offset_item
                if key == 'type':
                    temp_dia[key] = type_item
                if key == 'tool_type':
                    temp_dia[key] = tool_type_item
                if key == 'offset_value':
                    temp_dia[key] = offset_value_item

                if key == 'data':
                    # update the 'data' section
                    for data_key in tooluid_value[key].keys():
                        for form_key, form_value in self.form_fields.items():
                            if form_key == data_key:
                                temp_data[data_key] = form_value.get_value()
                        # make sure we make a copy of the keys not in the form (we may use 'data' keys that are
                        # updated from self.app.defaults
                        if data_key not in self.form_fields:
                            temp_data[data_key] = value[data_key]
                    temp_dia[key] = deepcopy(temp_data)
                    temp_data.clear()

                if key == 'solid_geometry':
                    temp_dia[key] = deepcopy(self.tools[tooluid_key]['solid_geometry'])

                temp_tools[tooluid_key] = deepcopy(temp_dia)

        self.tools.clear()
        self.tools = deepcopy(temp_tools)
        temp_tools.clear()

        self.ui_connect()

    def gui_form_to_storage(self):
        if self.ui.geo_tools_table.rowCount() == 0:
            # there is no tool in tool table so we can't save the GUI elements values to storage
            log.debug("GeometryObject.gui_form_to_storage() --> no tool in Tools Table, aborting.")
            return

        self.ui_disconnect()
        widget_changed = self.sender()
        try:
            widget_idx = self.ui.grid3.indexOf(widget_changed)
        except Exception:
            return

        # those are the indexes for the V-Tip Dia and V-Tip Angle, if edited calculate the new Cut Z
        if widget_idx == 1 or widget_idx == 3:
            self.update_cutz()

        # the original connect() function of the OptionalInputSelection is no longer working because of the
        # ui_diconnect() so I use this 'hack'
        if isinstance(widget_changed, FCCheckBox):
            if widget_changed.text() == 'Multi-Depth:':
                self.ui.ois_mpass_geo.on_cb_change()

            if widget_changed.text() == 'Tool change':
                self.ui.ois_tcz_geo.on_cb_change()

            if widget_changed.text() == 'Dwell:':
                self.ui.ois_dwell_geo.on_cb_change()

        row = self.ui.geo_tools_table.currentRow()
        if row < 0:
            row = 0

        # store all the data associated with the row parameter to the self.tools storage
        tooldia_item = float(self.ui.geo_tools_table.item(row, 1).text())
        offset_item = self.ui.geo_tools_table.cellWidget(row, 2).currentText()
        type_item = self.ui.geo_tools_table.cellWidget(row, 3).currentText()
        tool_type_item = self.ui.geo_tools_table.cellWidget(row, 4).currentText()
        tooluid_item = int(self.ui.geo_tools_table.item(row, 5).text())

        offset_value_item = float(self.ui.tool_offset_entry.get_value())

        # this new dict will hold the actual useful data, another dict that is the value of key 'data'
        temp_tools = {}
        temp_dia = {}
        temp_data = {}

        for tooluid_key, tooluid_value in self.tools.items():
            if int(tooluid_key) == tooluid_item:
                for key, value in tooluid_value.items():
                    if key == 'tooldia':
                        temp_dia[key] = tooldia_item
                    # update the 'offset', 'type' and 'tool_type' sections
                    if key == 'offset':
                        temp_dia[key] = offset_item
                    if key == 'type':
                        temp_dia[key] = type_item
                    if key == 'tool_type':
                        temp_dia[key] = tool_type_item
                    if key == 'offset_value':
                        temp_dia[key] = offset_value_item

                    if key == 'data':
                        # update the 'data' section
                        for data_key in tooluid_value[key].keys():
                            for form_key, form_value in self.form_fields.items():
                                if form_key == data_key:
                                    temp_data[data_key] = form_value.get_value()
                            # make sure we make a copy of the keys not in the form (we may use 'data' keys that are
                            # updated from self.app.defaults
                            if data_key not in self.form_fields:
                                temp_data[data_key] = value[data_key]
                        temp_dia[key] = deepcopy(temp_data)
                        temp_data.clear()

                    if key == 'solid_geometry':
                        temp_dia[key] = deepcopy(self.tools[tooluid_key]['solid_geometry'])

                    temp_tools[tooluid_key] = deepcopy(temp_dia)
            else:
                temp_tools[tooluid_key] = deepcopy(tooluid_value)

        self.tools.clear()
        self.tools = deepcopy(temp_tools)
        temp_tools.clear()
        self.ui_connect()

    def update_common_param_in_storage(self):
        for tooluid_value in self.tools.values():
            tooluid_value['data']['ppname_g'] = self.ui.pp_geometry_name_cb.get_value()

    def select_tools_table_row(self, row, clearsel=None):
        if clearsel:
            self.ui.geo_tools_table.clearSelection()

        if self.ui.geo_tools_table.rowCount() > 0:
            # self.ui.geo_tools_table.item(row, 0).setSelected(True)
            self.ui.geo_tools_table.setCurrentItem(self.ui.geo_tools_table.item(row, 0))

    def export_dxf(self):
        dwg = None
        try:
            dwg = ezdxf.new('R2010')
            msp = dwg.modelspace()

            def g2dxf(dxf_space, geo_obj):
                if isinstance(geo_obj, MultiPolygon):
                    for poly in geo_obj:
                        ext_points = list(poly.exterior.coords)
                        dxf_space.add_lwpolyline(ext_points)
                        for interior in poly.interiors:
                            dxf_space.add_lwpolyline(list(interior.coords))
                if isinstance(geo_obj, Polygon):
                    ext_points = list(geo_obj.exterior.coords)
                    dxf_space.add_lwpolyline(ext_points)
                    for interior in geo_obj.interiors:
                        dxf_space.add_lwpolyline(list(interior.coords))
                if isinstance(geo_obj, MultiLineString):
                    for line in geo_obj:
                        dxf_space.add_lwpolyline(list(line.coords))
                if isinstance(geo_obj, LineString) or isinstance(geo_obj, LinearRing):
                    dxf_space.add_lwpolyline(list(geo_obj.coords))

            multigeo_solid_geometry = []
            if self.multigeo:
                for tool in self.tools:
                    multigeo_solid_geometry += self.tools[tool]['solid_geometry']
            else:
                multigeo_solid_geometry = self.solid_geometry

            for geo in multigeo_solid_geometry:
                if type(geo) == list:
                    for g in geo:
                        g2dxf(msp, g)
                else:
                    g2dxf(msp, geo)

                # points = GeometryObject.get_pts(geo)
                # msp.add_lwpolyline(points)
        except Exception as e:
            log.debug(str(e))

        return dwg

    def get_selected_tools_table_items(self):
        """
        Returns a list of lists, each list in the list is made out of row elements

        :return: List of table_tools items.
        :rtype: list
        """
        table_tools_items = []
        if self.multigeo:
            for x in self.ui.geo_tools_table.selectedItems():
                elem = []
                txt = ''

                for column in range(0, self.ui.geo_tools_table.columnCount()):
                    try:
                        txt = self.ui.geo_tools_table.item(x.row(), column).text()
                    except AttributeError:
                        try:
                            txt = self.ui.geo_tools_table.cellWidget(x.row(), column).currentText()
                        except AttributeError:
                            pass
                    elem.append(txt)
                table_tools_items.append(deepcopy(elem))
                # table_tools_items.append([self.ui.geo_tools_table.item(x.row(), column).text()
                #                           for column in range(0, self.ui.geo_tools_table.columnCount())])
        else:
            for x in self.ui.geo_tools_table.selectedItems():
                r = []
                txt = ''

                # the last 2 columns for single-geo geometry are irrelevant and create problems reading
                # so we don't read them
                for column in range(0, self.ui.geo_tools_table.columnCount() - 2):
                    # the columns have items that have text but also have items that are widgets
                    # for which the text they hold has to be read differently
                    try:
                        txt = self.ui.geo_tools_table.item(x.row(), column).text()
                    except AttributeError:
                        try:
                            txt = self.ui.geo_tools_table.cellWidget(x.row(), column).currentText()
                        except AttributeError:
                            pass
                    r.append(txt)
                table_tools_items.append(r)

        for item in table_tools_items:
            item[0] = str(item[0])
        return table_tools_items

    def on_pp_changed(self):
        current_pp = self.ui.pp_geometry_name_cb.get_value()
        if current_pp == 'hpgl':
            self.old_pp_state = self.ui.mpass_cb.get_value()
            self.old_toolchangeg_state = self.ui.toolchangeg_cb.get_value()

            self.ui.mpass_cb.set_value(False)
            self.ui.mpass_cb.setDisabled(True)

            self.ui.toolchangeg_cb.set_value(True)
            self.ui.toolchangeg_cb.setDisabled(True)
        else:
            self.ui.mpass_cb.set_value(self.old_pp_state)
            self.ui.mpass_cb.setDisabled(False)

            self.ui.toolchangeg_cb.set_value(self.old_toolchangeg_state)
            self.ui.toolchangeg_cb.setDisabled(False)

        if "toolchange_probe" in current_pp.lower():
            self.ui.pdepth_entry.setVisible(True)
            self.ui.pdepth_label.show()

            self.ui.feedrate_probe_entry.setVisible(True)
            self.ui.feedrate_probe_label.show()
        else:
            self.ui.pdepth_entry.setVisible(False)
            self.ui.pdepth_label.hide()

            self.ui.feedrate_probe_entry.setVisible(False)
            self.ui.feedrate_probe_label.hide()

        if 'marlin' in current_pp.lower() or 'custom' in current_pp.lower():
            self.ui.fr_rapidlabel.show()
            self.ui.feedrate_rapid_entry.show()
        else:
            self.ui.fr_rapidlabel.hide()
            self.ui.feedrate_rapid_entry.hide()

        if 'laser' in current_pp.lower():
            self.ui.cutzlabel.hide()
            self.ui.cutz_entry.hide()
            try:
                self.ui.mpass_cb.hide()
                self.ui.maxdepth_entry.hide()
            except AttributeError:
                pass

            if 'marlin' in current_pp.lower():
                self.ui.travelzlabel.setText('%s:' % _("Focus Z"))
                self.ui.endz_label.show()
                self.ui.endz_entry.show()
            else:
                self.ui.travelzlabel.hide()
                self.ui.travelz_entry.hide()

                self.ui.endz_label.hide()
                self.ui.endz_entry.hide()

            try:
                self.ui.frzlabel.hide()
                self.ui.feedrate_z_entry.hide()
            except AttributeError:
                pass

            self.ui.dwell_cb.hide()
            self.ui.dwelltime_entry.hide()

            self.ui.spindle_label.setText('%s:' % _("Laser Power"))

            try:
                self.ui.tool_offset_label.hide()
                self.ui.offset_entry.hide()
            except AttributeError:
                pass
        else:
            self.ui.cutzlabel.show()
            self.ui.cutz_entry.show()
            try:
                self.ui.mpass_cb.show()
                self.ui.maxdepth_entry.show()
            except AttributeError:
                pass

            self.ui.travelzlabel.setText('%s:' % _('Travel Z'))

            self.ui.travelzlabel.show()
            self.ui.travelz_entry.show()

            self.ui.endz_label.show()
            self.ui.endz_entry.show()

            try:
                self.ui.frzlabel.show()
                self.ui.feedrate_z_entry.show()
            except AttributeError:
                pass
            self.ui.dwell_cb.show()
            self.ui.dwelltime_entry.show()

            self.ui.spindle_label.setText('%s:' % _('Spindle speed'))

            try:
                self.ui.tool_offset_lbl.show()
                self.ui.offset_entry.show()
            except AttributeError:
                pass

    def on_generatecnc_button_click(self, *args):
        log.debug("Generating CNCJob from Geometry ...")
        self.app.defaults.report_usage("geometry_on_generatecnc_button")

        # this reads the values in the UI form to the self.options dictionary
        self.read_form()

        self.sel_tools = {}

        try:
            if self.special_group:
                self.app.inform.emit(
                    '[WARNING_NOTCL] %s %s %s.' %
                    (_("This Geometry can't be processed because it is"), str(self.special_group), _("geometry"))
                )
                return
        except AttributeError:
            pass

        # test to see if we have tools available in the tool table
        if self.ui.geo_tools_table.selectedItems():
            for x in self.ui.geo_tools_table.selectedItems():
                # try:
                #     tooldia = float(self.ui.geo_tools_table.item(x.row(), 1).text())
                # except ValueError:
                #     # try to convert comma to decimal point. if it's still not working error message and return
                #     try:
                #         tooldia = float(self.ui.geo_tools_table.item(x.row(), 1).text().replace(',', '.'))
                #     except ValueError:
                #         self.app.inform.emit('[ERROR_NOTCL] %s' %
                #                              _("Wrong value format entered, use a number."))
                #         return
                tooluid = int(self.ui.geo_tools_table.item(x.row(), 5).text())

                for tooluid_key, tooluid_value in self.tools.items():
                    if int(tooluid_key) == tooluid:
                        self.sel_tools.update({
                            tooluid: deepcopy(tooluid_value)
                        })
            self.mtool_gen_cncjob()
            self.ui.geo_tools_table.clearSelection()

        elif self.ui.geo_tools_table.rowCount() == 1:
            tooluid = int(self.ui.geo_tools_table.item(0, 5).text())

            for tooluid_key, tooluid_value in self.tools.items():
                if int(tooluid_key) == tooluid:
                    self.sel_tools.update({
                        tooluid: deepcopy(tooluid_value)
                    })
            self.mtool_gen_cncjob()
            self.ui.geo_tools_table.clearSelection()

        else:
            self.app.inform.emit('[ERROR_NOTCL] %s' % _("Failed. No tool selected in the tool table ..."))

    def mtool_gen_cncjob(self, outname=None, tools_dict=None, tools_in_use=None, segx=None, segy=None,
                         plot=True, use_thread=True):
        """
        Creates a multi-tool CNCJob out of this Geometry object.
        The actual work is done by the target CNCJobObject object's
        `generate_from_geometry_2()` method.

        :param tools_dict: a dictionary that holds the whole data needed to create the Gcode
        (including the solid_geometry)

        :param tools_in_use: the tools that are used, needed by some preprocessors
        :type list of lists, each list in the list is made out of row elements of tools table from GUI

        :param outname:
        :param tools_dict:
        :param tools_in_use:
        :param segx:            number of segments on the X axis, for auto-levelling
        :param segy:            number of segments on the Y axis, for auto-levelling
        :param plot:            if True the generated object will be plotted; if False will not be plotted
        :param use_thread:      if True use threading
        :return:                None
        """

        # use the name of the first tool selected in self.geo_tools_table which has the diameter passed as tool_dia
        outname = "%s_%s" % (self.options["name"], 'cnc') if outname is None else outname

        tools_dict = self.sel_tools if tools_dict is None else tools_dict
        tools_in_use = tools_in_use if tools_in_use is not None else self.get_selected_tools_table_items()
        segx = segx if segx is not None else float(self.app.defaults['geometry_segx'])
        segy = segy if segy is not None else float(self.app.defaults['geometry_segy'])

        try:
            xmin = self.options['xmin']
            ymin = self.options['ymin']
            xmax = self.options['xmax']
            ymax = self.options['ymax']
        except Exception as e:
            log.debug("FlatCAMObj.GeometryObject.mtool_gen_cncjob() --> %s\n" % str(e))

            msg = '[ERROR] %s' % _("An internal error has occurred. See shell.\n")
            msg += '%s %s' % ('FlatCAMObj.GeometryObject.mtool_gen_cncjob() -->', str(e))
            msg += traceback.format_exc()
            self.app.inform.emit(msg)
            return

        # Object initialization function for app.new_object()
        # RUNNING ON SEPARATE THREAD!
        def job_init_single_geometry(job_obj, app_obj):
            log.debug("Creating a CNCJob out of a single-geometry")
            assert job_obj.kind == 'cncjob', "Initializer expected a CNCJobObject, got %s" % type(job_obj)

            job_obj.options['xmin'] = xmin
            job_obj.options['ymin'] = ymin
            job_obj.options['xmax'] = xmax
            job_obj.options['ymax'] = ymax

            # count the tools
            tool_cnt = 0

            dia_cnc_dict = {}

            # this turn on the FlatCAMCNCJob plot for multiple tools
            job_obj.multitool = True
            job_obj.multigeo = False
            job_obj.cnc_tools.clear()

            job_obj.options['Tools_in_use'] = tools_in_use
            job_obj.segx = segx if segx else float(self.app.defaults["geometry_segx"])
            job_obj.segy = segy if segy else float(self.app.defaults["geometry_segy"])

            job_obj.z_pdepth = float(self.app.defaults["geometry_z_pdepth"])
            job_obj.feedrate_probe = float(self.app.defaults["geometry_feedrate_probe"])

            for tooluid_key in list(tools_dict.keys()):
                tool_cnt += 1

                dia_cnc_dict = deepcopy(tools_dict[tooluid_key])
                tooldia_val = float('%.*f' % (self.decimals, float(tools_dict[tooluid_key]['tooldia'])))
                dia_cnc_dict.update({
                    'tooldia': tooldia_val
                })

                if dia_cnc_dict['offset'] == 'in':
                    tool_offset = -dia_cnc_dict['tooldia'] / 2
                elif dia_cnc_dict['offset'].lower() == 'out':
                    tool_offset = dia_cnc_dict['tooldia'] / 2
                elif dia_cnc_dict['offset'].lower() == 'custom':
                    try:
                        offset_value = float(self.ui.tool_offset_entry.get_value())
                    except ValueError:
                        # try to convert comma to decimal point. if it's still not working error message and return
                        try:
                            offset_value = float(self.ui.tool_offset_entry.get_value().replace(',', '.'))
                        except ValueError:
                            self.app.inform.emit('[ERROR_NOTCL] %s' % _("Wrong value format entered, use a number."))
                            return
                    if offset_value:
                        tool_offset = float(offset_value)
                    else:
                        self.app.inform.emit(
                            '[WARNING] %s' % _("Tool Offset is selected in Tool Table but no value is provided.\n"
                                               "Add a Tool Offset or change the Offset Type.")
                        )
                        return
                else:
                    tool_offset = 0.0

                dia_cnc_dict.update({
                    'offset_value': tool_offset
                })

                z_cut = tools_dict[tooluid_key]['data']["cutz"]
                z_move = tools_dict[tooluid_key]['data']["travelz"]
                feedrate = tools_dict[tooluid_key]['data']["feedrate"]
                feedrate_z = tools_dict[tooluid_key]['data']["feedrate_z"]
                feedrate_rapid = tools_dict[tooluid_key]['data']["feedrate_rapid"]
                multidepth = tools_dict[tooluid_key]['data']["multidepth"]
                extracut = tools_dict[tooluid_key]['data']["extracut"]
                extracut_length = tools_dict[tooluid_key]['data']["extracut_length"]
                depthpercut = tools_dict[tooluid_key]['data']["depthperpass"]
                toolchange = tools_dict[tooluid_key]['data']["toolchange"]
                toolchangez = tools_dict[tooluid_key]['data']["toolchangez"]
                toolchangexy = tools_dict[tooluid_key]['data']["toolchangexy"]
                startz = tools_dict[tooluid_key]['data']["startz"]
                endz = tools_dict[tooluid_key]['data']["endz"]
                endxy = self.options["endxy"]
                spindlespeed = tools_dict[tooluid_key]['data']["spindlespeed"]
                dwell = tools_dict[tooluid_key]['data']["dwell"]
                dwelltime = tools_dict[tooluid_key]['data']["dwelltime"]
                pp_geometry_name = tools_dict[tooluid_key]['data']["ppname_g"]

                spindledir = self.app.defaults['geometry_spindledir']
                tool_solid_geometry = self.solid_geometry

                job_obj.coords_decimals = self.app.defaults["cncjob_coords_decimals"]
                job_obj.fr_decimals = self.app.defaults["cncjob_fr_decimals"]

                # Propagate options
                job_obj.options["tooldia"] = tooldia_val
                job_obj.options['type'] = 'Geometry'
                job_obj.options['tool_dia'] = tooldia_val

                # it seems that the tolerance needs to be a lot lower value than 0.01 and it was hardcoded initially
                # to a value of 0.0005 which is 20 times less than 0.01
                tol = float(self.app.defaults['global_tolerance']) / 20
                res = job_obj.generate_from_geometry_2(
                    self, tooldia=tooldia_val, offset=tool_offset, tolerance=tol,
                    z_cut=z_cut, z_move=z_move,
                    feedrate=feedrate, feedrate_z=feedrate_z, feedrate_rapid=feedrate_rapid,
                    spindlespeed=spindlespeed, spindledir=spindledir, dwell=dwell, dwelltime=dwelltime,
                    multidepth=multidepth, depthpercut=depthpercut,
                    extracut=extracut, extracut_length=extracut_length, startz=startz, endz=endz, endxy=endxy,
                    toolchange=toolchange, toolchangez=toolchangez, toolchangexy=toolchangexy,
                    pp_geometry_name=pp_geometry_name,
                    tool_no=tool_cnt)

                if res == 'fail':
                    log.debug("GeometryObject.mtool_gen_cncjob() --> generate_from_geometry2() failed")
                    return 'fail'
                else:
                    dia_cnc_dict['gcode'] = res

                # tell gcode_parse from which point to start drawing the lines depending on what kind of
                # object is the source of gcode
                job_obj.toolchange_xy_type = "geometry"

                self.app.inform.emit('[success] %s' % _("G-Code parsing in progress..."))
                dia_cnc_dict['gcode_parsed'] = job_obj.gcode_parse()
                self.app.inform.emit('[success] %s' % _("G-Code parsing finished..."))

                # TODO this serve for bounding box creation only; should be optimized
                # commented this; there is no need for the actual GCode geometry - the original one will serve as well
                # for bounding box values
                # dia_cnc_dict['solid_geometry'] = cascaded_union([geo['geom'] for geo in dia_cnc_dict['gcode_parsed']])
                try:
                    dia_cnc_dict['solid_geometry'] = tool_solid_geometry
                    self.app.inform.emit('[success] %s...' % _("Finished G-Code processing"))
                except Exception as er:
                    self.app.inform.emit('[ERROR] %s: %s' % (_("G-Code processing failed with error"), str(er)))

                job_obj.cnc_tools.update({
                    tooluid_key: deepcopy(dia_cnc_dict)
                })
                dia_cnc_dict.clear()

        # Object initialization function for app.new_object()
        # RUNNING ON SEPARATE THREAD!
        def job_init_multi_geometry(job_obj, app_obj):
            log.debug("Creating a CNCJob out of a multi-geometry")
            assert job_obj.kind == 'cncjob', "Initializer expected a CNCJobObject, got %s" % type(job_obj)

            job_obj.options['xmin'] = xmin
            job_obj.options['ymin'] = ymin
            job_obj.options['xmax'] = xmax
            job_obj.options['ymax'] = ymax

            # count the tools
            tool_cnt = 0

            dia_cnc_dict = {}

            # this turn on the FlatCAMCNCJob plot for multiple tools
            job_obj.multitool = True
            job_obj.multigeo = True
            job_obj.cnc_tools.clear()

            job_obj.options['Tools_in_use'] = tools_in_use
            job_obj.segx = segx if segx else float(self.app.defaults["geometry_segx"])
            job_obj.segy = segy if segy else float(self.app.defaults["geometry_segy"])

            job_obj.z_pdepth = float(self.app.defaults["geometry_z_pdepth"])
            job_obj.feedrate_probe = float(self.app.defaults["geometry_feedrate_probe"])

            # make sure that trying to make a CNCJob from an empty file is not creating an app crash
            if not self.solid_geometry:
                a = 0
                for tooluid_key in self.tools:
                    if self.tools[tooluid_key]['solid_geometry'] is None:
                        a += 1
                if a == len(self.tools):
                    self.app.inform.emit('[ERROR_NOTCL] %s...' % _('Cancelled. Empty file, it has no geometry'))
                    return 'fail'

            for tooluid_key in list(tools_dict.keys()):
                tool_cnt += 1
                dia_cnc_dict = deepcopy(tools_dict[tooluid_key])
                tooldia_val = float('%.*f' % (self.decimals, float(tools_dict[tooluid_key]['tooldia'])))

                dia_cnc_dict.update({
                    'tooldia': tooldia_val
                })

                # find the tool_dia associated with the tooluid_key
                # search in the self.tools for the sel_tool_dia and when found see what tooluid has
                # on the found tooluid in self.tools we also have the solid_geometry that interest us
                # for k, v in self.tools.items():
                #     if float('%.*f' % (self.decimals, float(v['tooldia']))) == tooldia_val:
                #         current_uid = int(k)
                #         break

                if dia_cnc_dict['offset'] == 'in':
                    tool_offset = -tooldia_val / 2
                elif dia_cnc_dict['offset'].lower() == 'out':
                    tool_offset = tooldia_val / 2
                elif dia_cnc_dict['offset'].lower() == 'custom':
                    offset_value = float(self.ui.tool_offset_entry.get_value())
                    if offset_value:
                        tool_offset = float(offset_value)
                    else:
                        self.app.inform.emit('[WARNING] %s' %
                                             _("Tool Offset is selected in Tool Table but "
                                               "no value is provided.\n"
                                               "Add a Tool Offset or change the Offset Type."))
                        return
                else:
                    tool_offset = 0.0

                dia_cnc_dict.update({
                    'offset_value': tool_offset
                })

                z_cut = tools_dict[tooluid_key]['data']["cutz"]
                z_move = tools_dict[tooluid_key]['data']["travelz"]
                feedrate = tools_dict[tooluid_key]['data']["feedrate"]
                feedrate_z = tools_dict[tooluid_key]['data']["feedrate_z"]
                feedrate_rapid = tools_dict[tooluid_key]['data']["feedrate_rapid"]
                multidepth = tools_dict[tooluid_key]['data']["multidepth"]
                extracut = tools_dict[tooluid_key]['data']["extracut"]
                extracut_length = tools_dict[tooluid_key]['data']["extracut_length"]
                depthpercut = tools_dict[tooluid_key]['data']["depthperpass"]
                toolchange = tools_dict[tooluid_key]['data']["toolchange"]
                toolchangez = tools_dict[tooluid_key]['data']["toolchangez"]
                toolchangexy = tools_dict[tooluid_key]['data']["toolchangexy"]
                startz = tools_dict[tooluid_key]['data']["startz"]
                endz = tools_dict[tooluid_key]['data']["endz"]
                endxy = self.options["endxy"]
                spindlespeed = tools_dict[tooluid_key]['data']["spindlespeed"]
                dwell = tools_dict[tooluid_key]['data']["dwell"]
                dwelltime = tools_dict[tooluid_key]['data']["dwelltime"]
                pp_geometry_name = tools_dict[tooluid_key]['data']["ppname_g"]

                spindledir = self.app.defaults['geometry_spindledir']
                tool_solid_geometry = self.tools[tooluid_key]['solid_geometry']

                job_obj.coords_decimals = self.app.defaults["cncjob_coords_decimals"]
                job_obj.fr_decimals = self.app.defaults["cncjob_fr_decimals"]

                # Propagate options
                job_obj.options["tooldia"] = tooldia_val
                job_obj.options['type'] = 'Geometry'
                job_obj.options['tool_dia'] = tooldia_val

                # it seems that the tolerance needs to be a lot lower value than 0.01 and it was hardcoded initially
                # to a value of 0.0005 which is 20 times less than 0.01
                tol = float(self.app.defaults['global_tolerance']) / 20
                res = job_obj.generate_from_multitool_geometry(
                    tool_solid_geometry, tooldia=tooldia_val, offset=tool_offset,
                    tolerance=tol, z_cut=z_cut, z_move=z_move,
                    feedrate=feedrate, feedrate_z=feedrate_z, feedrate_rapid=feedrate_rapid,
                    spindlespeed=spindlespeed, spindledir=spindledir, dwell=dwell, dwelltime=dwelltime,
                    multidepth=multidepth, depthpercut=depthpercut,
                    extracut=extracut, extracut_length=extracut_length, startz=startz, endz=endz, endxy=endxy,
                    toolchange=toolchange, toolchangez=toolchangez, toolchangexy=toolchangexy,
                    pp_geometry_name=pp_geometry_name,
                    tool_no=tool_cnt)

                if res == 'fail':
                    log.debug("GeometryObject.mtool_gen_cncjob() --> generate_from_geometry2() failed")
                    return 'fail'
                else:
                    dia_cnc_dict['gcode'] = res

                self.app.inform.emit('[success] %s' % _("G-Code parsing in progress..."))
                dia_cnc_dict['gcode_parsed'] = job_obj.gcode_parse()
                self.app.inform.emit('[success] %s' % _("G-Code parsing finished..."))

                # TODO this serve for bounding box creation only; should be optimized
                # commented this; there is no need for the actual GCode geometry - the original one will serve as well
                # for bounding box values
                # geo_for_bound_values = cascaded_union([
                #     geo['geom'] for geo in dia_cnc_dict['gcode_parsed'] if geo['geom'].is_valid is True
                # ])
                try:
                    dia_cnc_dict['solid_geometry'] = deepcopy(tool_solid_geometry)
                    self.app.inform.emit('[success] %s' % _("Finished G-Code processing..."))
                except Exception as ee:
                    self.app.inform.emit('[ERROR] %s: %s' % (_("G-Code processing failed with error"), str(ee)))

                # tell gcode_parse from which point to start drawing the lines depending on what kind of
                # object is the source of gcode
                job_obj.toolchange_xy_type = "geometry"

                job_obj.cnc_tools.update({
                    tooluid_key: deepcopy(dia_cnc_dict)
                })
                dia_cnc_dict.clear()

        if use_thread:
            # To be run in separate thread
            def job_thread(app_obj):
                if self.multigeo is False:
                    with self.app.proc_container.new(_("Generating CNC Code")):
                        if app_obj.new_object("cncjob", outname, job_init_single_geometry, plot=plot) != 'fail':
                            app_obj.inform.emit('[success] %s: %s' % (_("CNCjob created"), outname))
                else:
                    with self.app.proc_container.new(_("Generating CNC Code")):
                        if app_obj.new_object("cncjob", outname, job_init_multi_geometry) != 'fail':
                            app_obj.inform.emit('[success] %s: %s' % (_("CNCjob created"), outname))

            # Create a promise with the name
            self.app.collection.promise(outname)
            # Send to worker
            self.app.worker_task.emit({'fcn': job_thread, 'params': [self.app]})
        else:
            if self.solid_geometry:
                self.app.new_object("cncjob", outname, job_init_single_geometry, plot=plot)
            else:
                self.app.new_object("cncjob", outname, job_init_multi_geometry, plot=plot)

    def generatecncjob(
            self, outname=None,
            dia=None, offset=None,
            z_cut=None, z_move=None,
            feedrate=None, feedrate_z=None, feedrate_rapid=None,
            spindlespeed=None, dwell=None, dwelltime=None,
            multidepth=None, depthperpass=None,
            toolchange=None, toolchangez=None, toolchangexy=None,
            extracut=None, extracut_length=None, startz=None, endz=None,
            pp=None,
            segx=None, segy=None,
            use_thread=True,
            plot=True):
        """
        Only used for TCL Command.
        Creates a CNCJob out of this Geometry object. The actual
        work is done by the target camlib.CNCjob
        `generate_from_geometry_2()` method.

        :param outname:         Name of the new object
        :param dia:             Tool diameter
        :param offset:
        :param z_cut:           Cut depth (negative value)
        :param z_move:          Height of the tool when travelling (not cutting)
        :param feedrate:        Feed rate while cutting on X - Y plane
        :param feedrate_z:      Feed rate while cutting on Z plane
        :param feedrate_rapid:  Feed rate while moving with rapids
        :param spindlespeed:    Spindle speed (RPM)
        :param dwell:
        :param dwelltime:
        :param multidepth:
        :param depthperpass:
        :param toolchange:
        :param toolchangez:
        :param toolchangexy:
        :param extracut:
        :param extracut_length:
        :param startz:
        :param endz:
        :param pp:              Name of the preprocessor
        :param segx:
        :param segy:
        :param use_thread:
        :param plot:
        :return: None
        """

        tooldia = dia if dia else float(self.options["cnctooldia"])
        outname = outname if outname is not None else self.options["name"]

        z_cut = z_cut if z_cut is not None else float(self.options["cutz"])
        z_move = z_move if z_move is not None else float(self.options["travelz"])

        feedrate = feedrate if feedrate is not None else float(self.options["feedrate"])
        feedrate_z = feedrate_z if feedrate_z is not None else float(self.options["feedrate_z"])
        feedrate_rapid = feedrate_rapid if feedrate_rapid is not None else float(self.options["feedrate_rapid"])

        multidepth = multidepth if multidepth is not None else self.options["multidepth"]
        depthperpass = depthperpass if depthperpass is not None else float(self.options["depthperpass"])

        segx = segx if segx is not None else float(self.app.defaults['geometry_segx'])
        segy = segy if segy is not None else float(self.app.defaults['geometry_segy'])

        extracut = extracut if extracut is not None else float(self.options["extracut"])
        extracut_length = extracut_length if extracut_length is not None else float(self.options["extracut_length"])

        startz = startz if startz is not None else self.options["startz"]
        endz = endz if endz is not None else float(self.options["endz"])
        endxy = self.options["endxy"]

        toolchangez = toolchangez if toolchangez else float(self.options["toolchangez"])
        toolchangexy = toolchangexy if toolchangexy else self.options["toolchangexy"]
        toolchange = toolchange if toolchange else self.options["toolchange"]

        offset = offset if offset else 0.0

        # int or None.
        spindlespeed = spindlespeed if spindlespeed else self.options['spindlespeed']
        dwell = dwell if dwell else self.options["dwell"]
        dwelltime = dwelltime if dwelltime else float(self.options["dwelltime"])

        ppname_g = pp if pp else self.options["ppname_g"]

        # Object initialization function for app.new_object()
        # RUNNING ON SEPARATE THREAD!
        def job_init(job_obj, app_obj):
            assert job_obj.kind == 'cncjob', "Initializer expected a CNCJobObject, got %s" % type(job_obj)

            # Propagate options
            job_obj.options["tooldia"] = tooldia

            job_obj.coords_decimals = self.app.defaults["cncjob_coords_decimals"]
            job_obj.fr_decimals = self.app.defaults["cncjob_fr_decimals"]

            job_obj.options['type'] = 'Geometry'
            job_obj.options['tool_dia'] = tooldia

            job_obj.segx = segx
            job_obj.segy = segy

            job_obj.z_pdepth = float(self.options["z_pdepth"])
            job_obj.feedrate_probe = float(self.options["feedrate_probe"])

            job_obj.options['xmin'] = self.options['xmin']
            job_obj.options['ymin'] = self.options['ymin']
            job_obj.options['xmax'] = self.options['xmax']
            job_obj.options['ymax'] = self.options['ymax']

            # it seems that the tolerance needs to be a lot lower value than 0.01 and it was hardcoded initially
            # to a value of 0.0005 which is 20 times less than 0.01
            tol = float(self.app.defaults['global_tolerance']) / 20
            job_obj.generate_from_geometry_2(
                self, tooldia=tooldia, offset=offset, tolerance=tol,
                z_cut=z_cut, z_move=z_move,
                feedrate=feedrate, feedrate_z=feedrate_z, feedrate_rapid=feedrate_rapid,
                spindlespeed=spindlespeed, dwell=dwell, dwelltime=dwelltime,
                multidepth=multidepth, depthpercut=depthperpass,
                toolchange=toolchange, toolchangez=toolchangez, toolchangexy=toolchangexy,
                extracut=extracut, extracut_length=extracut_length, startz=startz, endz=endz, endxy=endxy,
                pp_geometry_name=ppname_g
            )

            # tell gcode_parse from which point to start drawing the lines depending on what kind of object is the
            # source of gcode
            job_obj.toolchange_xy_type = "geometry"
            job_obj.gcode_parse()
            self.app.inform.emit('[success] %s' % _("Finished G-Code processing..."))

        if use_thread:
            # To be run in separate thread
            def job_thread(app_obj):
                with self.app.proc_container.new(_("Generating CNC Code")):
                    app_obj.new_object("cncjob", outname, job_init, plot=plot)
                    app_obj.inform.emit('[success] %s: %s' % (_("CNCjob created")), outname)

            # Create a promise with the name
            self.app.collection.promise(outname)
            # Send to worker
            self.app.worker_task.emit({'fcn': job_thread, 'params': [self.app]})
        else:
            self.app.new_object("cncjob", outname, job_init, plot=plot)

    # def on_plot_cb_click(self, *args):
    #     if self.muted_ui:
    #         return
    #     self.read_form_item('plot')

    def scale(self, xfactor, yfactor=None, point=None):
        """
        Scales all geometry by a given factor.

        :param xfactor:     Factor by which to scale the object's geometry/
        :type xfactor:      float
        :param yfactor:     Factor by which to scale the object's geometry/
        :type yfactor:      float
        :param point:       Point around which to scale
        :return: None
        :rtype: None
        """
        log.debug("FlatCAMObj.GeometryObject.scale()")

        try:
            xfactor = float(xfactor)
        except Exception:
            self.app.inform.emit('[ERROR_NOTCL] %s' % _("Scale factor has to be a number: integer or float."))
            return

        if yfactor is None:
            yfactor = xfactor
        else:
            try:
                yfactor = float(yfactor)
            except Exception:
                self.app.inform.emit('[ERROR_NOTCL] %s' % _("Scale factor has to be a number: integer or float."))
                return

        if xfactor == 1 and yfactor == 1:
            return

        if point is None:
            px = 0
            py = 0
        else:
            px, py = point

        self.geo_len = 0
        self.old_disp_number = 0
        self.el_count = 0

        def scale_recursion(geom):
            if type(geom) is list:
                geoms = []
                for local_geom in geom:
                    geoms.append(scale_recursion(local_geom))
                return geoms
            else:
                try:
                    self.el_count += 1
                    disp_number = int(np.interp(self.el_count, [0, self.geo_len], [0, 100]))
                    if self.old_disp_number < disp_number <= 100:
                        self.app.proc_container.update_view_text(' %d%%' % disp_number)
                        self.old_disp_number = disp_number

                    return affinity.scale(geom, xfactor, yfactor, origin=(px, py))
                except AttributeError:
                    return geom

        if self.multigeo is True:
            for tool in self.tools:
                # variables to display the percentage of work done
                self.geo_len = 0
                try:
                    self.geo_len = len(self.tools[tool]['solid_geometry'])
                except TypeError:
                    self.geo_len = 1
                self.old_disp_number = 0
                self.el_count = 0

                self.tools[tool]['solid_geometry'] = scale_recursion(self.tools[tool]['solid_geometry'])

        try:
            # variables to display the percentage of work done
            self.geo_len = 0
            try:
                self.geo_len = len(self.solid_geometry)
            except TypeError:
                self.geo_len = 1
            self.old_disp_number = 0
            self.el_count = 0

            self.solid_geometry = scale_recursion(self.solid_geometry)
        except AttributeError:
            self.solid_geometry = []
            return

        self.app.proc_container.new_text = ''
        self.app.inform.emit('[success] %s' % _("Geometry Scale done."))

    def offset(self, vect):
        """
        Offsets all geometry by a given vector/

        :param vect: (x, y) vector by which to offset the object's geometry.
        :type vect: tuple
        :return: None
        :rtype: None
        """
        log.debug("FlatCAMObj.GeometryObject.offset()")

        try:
            dx, dy = vect
        except TypeError:
            self.app.inform.emit('[ERROR_NOTCL] %s' %
                                 _("An (x,y) pair of values are needed. "
                                   "Probable you entered only one value in the Offset field.")
                                 )
            return

        if dx == 0 and dy == 0:
            return

        self.geo_len = 0
        self.old_disp_number = 0
        self.el_count = 0

        def translate_recursion(geom):
            if type(geom) is list:
                geoms = []
                for local_geom in geom:
                    geoms.append(translate_recursion(local_geom))
                return geoms
            else:
                try:
                    self.el_count += 1
                    disp_number = int(np.interp(self.el_count, [0, self.geo_len], [0, 100]))
                    if self.old_disp_number < disp_number <= 100:
                        self.app.proc_container.update_view_text(' %d%%' % disp_number)
                        self.old_disp_number = disp_number

                    return affinity.translate(geom, xoff=dx, yoff=dy)
                except AttributeError:
                    return geom

        if self.multigeo is True:
            for tool in self.tools:
                # variables to display the percentage of work done
                self.geo_len = 0
                try:
                    self.geo_len = len(self.tools[tool]['solid_geometry'])
                except TypeError:
                    self.geo_len = 1
                self.old_disp_number = 0
                self.el_count = 0

                self.tools[tool]['solid_geometry'] = translate_recursion(self.tools[tool]['solid_geometry'])

        # variables to display the percentage of work done
        self.geo_len = 0
        try:
            self.geo_len = len(self.solid_geometry)
        except TypeError:
            self.geo_len = 1

        self.old_disp_number = 0
        self.el_count = 0

        self.solid_geometry = translate_recursion(self.solid_geometry)

        self.app.proc_container.new_text = ''
        self.app.inform.emit('[success] %s' % _("Geometry Offset done."))

    def convert_units(self, units):
        log.debug("FlatCAMObj.GeometryObject.convert_units()")

        self.ui_disconnect()

        factor = Geometry.convert_units(self, units)

        self.options['cutz'] = float(self.options['cutz']) * factor
        self.options['depthperpass'] = float(self.options['depthperpass']) * factor
        self.options['travelz'] = float(self.options['travelz']) * factor
        self.options['feedrate'] = float(self.options['feedrate']) * factor
        self.options['feedrate_z'] = float(self.options['feedrate_z']) * factor
        self.options['feedrate_rapid'] = float(self.options['feedrate_rapid']) * factor
        self.options['endz'] = float(self.options['endz']) * factor
        # self.options['cnctooldia'] *= factor
        # self.options['painttooldia'] *= factor
        # self.options['paintmargin'] *= factor
        # self.options['paintoverlap'] *= factor

        self.options["toolchangez"] = float(self.options["toolchangez"]) * factor

        if self.app.defaults["geometry_toolchangexy"] == '':
            self.options['toolchangexy'] = "0.0, 0.0"
        else:
            coords_xy = [float(eval(coord)) for coord in self.app.defaults["geometry_toolchangexy"].split(",")]
            if len(coords_xy) < 2:
                self.app.inform.emit('[ERROR] %s' %
                                     _("The Toolchange X,Y field in Edit -> Preferences "
                                       "has to be in the format (x, y)\n"
                                       "but now there is only one value, not two.")
                                     )
                return 'fail'
            coords_xy[0] *= factor
            coords_xy[1] *= factor
            self.options['toolchangexy'] = "%f, %f" % (coords_xy[0], coords_xy[1])

        if self.options['startz'] is not None:
            self.options['startz'] = float(self.options['startz']) * factor

        param_list = ['cutz', 'depthperpass', 'travelz', 'feedrate', 'feedrate_z', 'feedrate_rapid',
                      'endz', 'toolchangez']

        if isinstance(self, GeometryObject):
            temp_tools_dict = {}
            tool_dia_copy = {}
            data_copy = {}
            for tooluid_key, tooluid_value in self.tools.items():
                for dia_key, dia_value in tooluid_value.items():
                    if dia_key == 'tooldia':
                        dia_value *= factor
                        dia_value = float('%.*f' % (self.decimals, dia_value))
                        tool_dia_copy[dia_key] = dia_value
                    if dia_key == 'offset':
                        tool_dia_copy[dia_key] = dia_value
                    if dia_key == 'offset_value':
                        dia_value *= factor
                        tool_dia_copy[dia_key] = dia_value

                        # convert the value in the Custom Tool Offset entry in UI
                        custom_offset = None
                        try:
                            custom_offset = float(self.ui.tool_offset_entry.get_value())
                        except ValueError:
                            # try to convert comma to decimal point. if it's still not working error message and return
                            try:
                                custom_offset = float(self.ui.tool_offset_entry.get_value().replace(',', '.'))
                            except ValueError:
                                self.app.inform.emit('[ERROR_NOTCL] %s' %
                                                     _("Wrong value format entered, use a number."))
                                return
                        except TypeError:
                            pass

                        if custom_offset:
                            custom_offset *= factor
                            self.ui.tool_offset_entry.set_value(custom_offset)

                    if dia_key == 'type':
                        tool_dia_copy[dia_key] = dia_value
                    if dia_key == 'tool_type':
                        tool_dia_copy[dia_key] = dia_value
                    if dia_key == 'data':
                        for data_key, data_value in dia_value.items():
                            # convert the form fields that are convertible
                            for param in param_list:
                                if data_key == param and data_value is not None:
                                    data_copy[data_key] = data_value * factor
                            # copy the other dict entries that are not convertible
                            if data_key not in param_list:
                                data_copy[data_key] = data_value
                        tool_dia_copy[dia_key] = deepcopy(data_copy)
                        data_copy.clear()

                temp_tools_dict.update({
                    tooluid_key: deepcopy(tool_dia_copy)
                })
                tool_dia_copy.clear()

            self.tools.clear()
            self.tools = deepcopy(temp_tools_dict)

        # if there is a value in the new tool field then convert that one too
        try:
            self.ui.addtool_entry.returnPressed.disconnect()
        except TypeError:
            pass
        tooldia = self.ui.addtool_entry.get_value()
        if tooldia:
            tooldia *= factor
            tooldia = float('%.*f' % (self.decimals, tooldia))

            self.ui.addtool_entry.set_value(tooldia)
        self.ui.addtool_entry.returnPressed.connect(self.on_tool_add)

        return factor

    def plot_element(self, element, color=None, visible=None):

        if color is None:
            color = '#FF0000FF'

        visible = visible if visible else self.options['plot']
        try:
            for sub_el in element:
                self.plot_element(sub_el, color=color)

        except TypeError:  # Element is not iterable...
            # if self.app.is_legacy is False:
            self.add_shape(shape=element, color=color, visible=visible, layer=0)

    def plot(self, visible=None, kind=None):
        """
        Plot the object.

        :param visible: Controls if the added shape is visible of not
        :param kind: added so there is no error when a project is loaded and it has both geometry and CNCJob, because
        CNCJob require the 'kind' parameter. Perhaps the FlatCAMObj.plot() has to be rewrited
        :return:
        """

        # Does all the required setup and returns False
        # if the 'ptint' option is set to False.
        if not FlatCAMObj.plot(self):
            return

        try:
            # plot solid geometries found as members of self.tools attribute dict
            # for MultiGeo
            if self.multigeo is True:  # geo multi tool usage
                for tooluid_key in self.tools:
                    solid_geometry = self.tools[tooluid_key]['solid_geometry']
                    self.plot_element(solid_geometry, visible=visible,
                                      color=self.app.defaults["geometry_plot_line"])
            else:
                # plot solid geometry that may be an direct attribute of the geometry object
                # for SingleGeo
                if self.solid_geometry:
                    self.plot_element(self.solid_geometry, visible=visible,
                                      color=self.app.defaults["geometry_plot_line"])

            # self.plot_element(self.solid_geometry, visible=self.options['plot'])

            self.shapes.redraw()

        except (ObjectDeleted, AttributeError):
            self.shapes.clear(update=True)

    def on_plot_cb_click(self, *args):
        if self.muted_ui:
            return
        self.read_form_item('plot')
        self.plot()

        self.ui_disconnect()
        cb_flag = self.ui.plot_cb.isChecked()
        for row in range(self.ui.geo_tools_table.rowCount()):
            table_cb = self.ui.geo_tools_table.cellWidget(row, 6)
            if cb_flag:
                table_cb.setChecked(True)
            else:
                table_cb.setChecked(False)
        self.ui_connect()

    def on_plot_cb_click_table(self):
        # self.ui.cnc_tools_table.cellWidget(row, 2).widget().setCheckState(QtCore.Qt.Unchecked)
        self.ui_disconnect()
        # cw = self.sender()
        # cw_index = self.ui.geo_tools_table.indexAt(cw.pos())
        # cw_row = cw_index.row()
        check_row = 0

        self.shapes.clear(update=True)
        for tooluid_key in self.tools:
            solid_geometry = self.tools[tooluid_key]['solid_geometry']

            # find the geo_tool_table row associated with the tooluid_key
            for row in range(self.ui.geo_tools_table.rowCount()):
                tooluid_item = int(self.ui.geo_tools_table.item(row, 5).text())
                if tooluid_item == int(tooluid_key):
                    check_row = row
                    break
            if self.ui.geo_tools_table.cellWidget(check_row, 6).isChecked():
                self.plot_element(element=solid_geometry, visible=True)
        self.shapes.redraw()

        # make sure that the general plot is disabled if one of the row plot's are disabled and
        # if all the row plot's are enabled also enable the general plot checkbox
        cb_cnt = 0
        total_row = self.ui.geo_tools_table.rowCount()
        for row in range(total_row):
            if self.ui.geo_tools_table.cellWidget(row, 6).isChecked():
                cb_cnt += 1
            else:
                cb_cnt -= 1
        if cb_cnt < total_row:
            self.ui.plot_cb.setChecked(False)
        else:
            self.ui.plot_cb.setChecked(True)
        self.ui_connect()

    def on_add_area_click(self):
        self.app.inform.emit('[WARNING_NOTCL] %s' % _("Click the start point of the area."))
        self.app.call_source = 'geometry'

        if self.app.is_legacy is False:
            self.app.plotcanvas.graph_event_disconnect('mouse_press', self.app.on_mouse_click_over_plot)
            self.app.plotcanvas.graph_event_disconnect('mouse_move', self.app.on_mouse_move_over_plot)
            self.app.plotcanvas.graph_event_disconnect('mouse_release', self.app.on_mouse_click_release_over_plot)
        else:
            self.app.plotcanvas.graph_event_disconnect(self.app.mp)
            self.app.plotcanvas.graph_event_disconnect(self.app.mm)
            self.app.plotcanvas.graph_event_disconnect(self.app.mr)

        self.mr = self.app.plotcanvas.graph_event_connect('mouse_release', self.on_mouse_release)
        self.mm = self.app.plotcanvas.graph_event_connect('mouse_move', self.on_mouse_move)
        # self.kp = self.app.plotcanvas.graph_event_connect('key_press', self.on_key_press)

    # To be called after clicking on the plot.
    def on_mouse_release(self, event):
        if self.app.is_legacy is False:
            event_pos = event.pos
            # event_is_dragging = event.is_dragging
            right_button = 2
        else:
            event_pos = (event.xdata, event.ydata)
            # event_is_dragging = self.app.plotcanvas.is_dragging
            right_button = 3

        event_pos = self.app.plotcanvas.translate_coords(event_pos)
        if self.app.grid_status():
            curr_pos = self.app.geo_editor.snap(event_pos[0], event_pos[1])
        else:
            curr_pos = (event_pos[0], event_pos[1])

        x1, y1 = curr_pos[0], curr_pos[1]

        shape_type = self.ui.area_shape_radio.get_value()

        # do clear area only for left mouse clicks
        if event.button == 1:
            if shape_type == "square":
                if self.first_click is False:
                    self.first_click = True
                    self.app.inform.emit('[WARNING_NOTCL] %s' % _("Click the end point of the area."))

                    self.cursor_pos = self.app.plotcanvas.translate_coords(event_pos)
                    if self.app.grid_status():
                        self.cursor_pos = self.app.geo_editor.snap(event_pos[0], event_pos[1])
                else:
                    self.app.inform.emit(_("Zone added. Click to start adding next zone or right click to finish."))
                    self.app.delete_selection_shape()

                    x0, y0 = self.cursor_pos[0], self.cursor_pos[1]

                    pt1 = (x0, y0)
                    pt2 = (x1, y0)
                    pt3 = (x1, y1)
                    pt4 = (x0, y1)

                    new_rectangle = Polygon([pt1, pt2, pt3, pt4])
                    self.exclusion_areas_list.append(new_rectangle)

                    # add a temporary shape on canvas
                    FlatCAMTool.FlatCAMTool.draw_tool_selection_shape(self, old_coords=(x0, y0), coords=(x1, y1))

                    self.first_click = False
                    return
            else:
                self.points.append((x1, y1))

                if len(self.points) > 1:
                    self.poly_drawn = True
                    self.app.inform.emit(_("Click on next Point or click right mouse button to complete ..."))

                return ""
        elif event.button == right_button and self.mouse_is_dragging is False:

            shape_type = self.ui.area_shape_radio.get_value()

            if shape_type == "square":
                self.first_click = False
            else:
                # if we finish to add a polygon
                if self.poly_drawn is True:
                    try:
                        # try to add the point where we last clicked if it is not already in the self.points
                        last_pt = (x1, y1)
                        if last_pt != self.points[-1]:
                            self.points.append(last_pt)
                    except IndexError:
                        pass

                    # we need to add a Polygon and a Polygon can be made only from at least 3 points
                    if len(self.points) > 2:
                        FlatCAMTool.FlatCAMTool.delete_moving_selection_shape(self)
                        pol = Polygon(self.points)
                        # do not add invalid polygons even if they are drawn by utility geometry
                        if pol.is_valid:
                            self.exclusion_areas_list.append(pol)
                            FlatCAMTool.FlatCAMTool.draw_selection_shape_polygon(self, points=self.points)
                            self.app.inform.emit(
                                _("Zone added. Click to start adding next zone or right click to finish."))

                    self.points = []
                    self.poly_drawn = False
                    return

            FlatCAMTool.FlatCAMTool.delete_tool_selection_shape(self)

            if self.app.is_legacy is False:
                self.app.plotcanvas.graph_event_disconnect('mouse_release', self.on_mouse_release)
                self.app.plotcanvas.graph_event_disconnect('mouse_move', self.on_mouse_move)
                # self.app.plotcanvas.graph_event_disconnect('key_press', self.on_key_press)
            else:
                self.app.plotcanvas.graph_event_disconnect(self.mr)
                self.app.plotcanvas.graph_event_disconnect(self.mm)
                # self.app.plotcanvas.graph_event_disconnect(self.kp)

            self.app.mp = self.app.plotcanvas.graph_event_connect('mouse_press',
                                                                  self.app.on_mouse_click_over_plot)
            self.app.mm = self.app.plotcanvas.graph_event_connect('mouse_move',
                                                                  self.app.on_mouse_move_over_plot)
            self.app.mr = self.app.plotcanvas.graph_event_connect('mouse_release',
                                                                  self.app.on_mouse_click_release_over_plot)

            self.app.call_source = 'app'

            if len(self.exclusion_areas_list) == 0:
                return

    def area_disconnect(self):
        if self.app.is_legacy is False:
            self.app.plotcanvas.graph_event_disconnect('mouse_release', self.on_mouse_release)
            self.app.plotcanvas.graph_event_disconnect('mouse_move', self.on_mouse_move)
        else:
            self.app.plotcanvas.graph_event_disconnect(self.mr)
            self.app.plotcanvas.graph_event_disconnect(self.mm)
            self.app.plotcanvas.graph_event_disconnect(self.kp)

        self.app.mp = self.app.plotcanvas.graph_event_connect('mouse_press',
                                                              self.app.on_mouse_click_over_plot)
        self.app.mm = self.app.plotcanvas.graph_event_connect('mouse_move',
                                                              self.app.on_mouse_move_over_plot)
        self.app.mr = self.app.plotcanvas.graph_event_connect('mouse_release',
                                                              self.app.on_mouse_click_release_over_plot)
        self.points = []
        self.poly_drawn = False
        self.exclusion_areas_list = []

        FlatCAMTool.FlatCAMTool.delete_moving_selection_shape(self)
        FlatCAMTool.FlatCAMTool.delete_tool_selection_shape(self)

        self.app.call_source = "app"
        self.app.inform.emit("[WARNING_NOTCL] %s" % _("Cancelled. Area exclusion drawing was interrupted."))

    # called on mouse move
    def on_mouse_move(self, event):
        shape_type = self.ui.area_shape_radio.get_value()

        if self.app.is_legacy is False:
            event_pos = event.pos
            event_is_dragging = event.is_dragging
            # right_button = 2
        else:
            event_pos = (event.xdata, event.ydata)
            event_is_dragging = self.app.plotcanvas.is_dragging
            # right_button = 3

        curr_pos = self.app.plotcanvas.translate_coords(event_pos)

        # detect mouse dragging motion
        if event_is_dragging is True:
            self.mouse_is_dragging = True
        else:
            self.mouse_is_dragging = False

        # update the cursor position
        if self.app.grid_status():
            # Update cursor
            curr_pos = self.app.geo_editor.snap(curr_pos[0], curr_pos[1])

            self.app.app_cursor.set_data(np.asarray([(curr_pos[0], curr_pos[1])]),
                                         symbol='++', edge_color=self.app.cursor_color_3D,
                                         edge_width=self.app.defaults["global_cursor_width"],
                                         size=self.app.defaults["global_cursor_size"])

        # update the positions on status bar
        self.app.ui.position_label.setText("&nbsp;&nbsp;&nbsp;&nbsp;<b>X</b>: %.4f&nbsp;&nbsp;   "
                                           "<b>Y</b>: %.4f" % (curr_pos[0], curr_pos[1]))
        if self.cursor_pos is None:
            self.cursor_pos = (0, 0)

        self.app.dx = curr_pos[0] - float(self.cursor_pos[0])
        self.app.dy = curr_pos[1] - float(self.cursor_pos[1])
        self.app.ui.rel_position_label.setText("<b>Dx</b>: %.4f&nbsp;&nbsp;  <b>Dy</b>: "
                                               "%.4f&nbsp;&nbsp;&nbsp;&nbsp;" % (self.app.dx, self.app.dy))

        # draw the utility geometry
        if shape_type == "square":
            if self.first_click:
                self.app.delete_selection_shape()
                self.app.draw_moving_selection_shape(old_coords=(self.cursor_pos[0], self.cursor_pos[1]),
                                                     coords=(curr_pos[0], curr_pos[1]))
        else:
            FlatCAMTool.FlatCAMTool.delete_moving_selection_shape(self)
            FlatCAMTool.FlatCAMTool.draw_moving_selection_shape_poly(
                self, points=self.points, data=(curr_pos[0], curr_pos[1]))

    def on_clear_area_click(self):
        self.exclusion_areas_list = []
        FlatCAMTool.FlatCAMTool.delete_moving_selection_shape(self)
        self.app.delete_selection_shape()

    @staticmethod
    def merge(geo_list, geo_final, multigeo=None):
        """
        Merges the geometry of objects in grb_list into the geometry of geo_final.

        :param geo_list: List of GerberObject Objects to join.
        :param geo_final: Destination GerberObject object.
        :param multigeo: if the merged geometry objects are of type MultiGeo
        :return: None
        """

        if geo_final.solid_geometry is None:
            geo_final.solid_geometry = []

        try:
            __ = iter(geo_final.solid_geometry)
        except TypeError:
            geo_final.solid_geometry = [geo_final.solid_geometry]

        new_solid_geometry = []
        new_options = {}
        new_tools = {}

        for geo_obj in geo_list:
            for option in geo_obj.options:
                if option != 'name':
                    try:
                        new_options[option] = deepcopy(geo_obj.options[option])
                    except Exception as e:
                        log.warning("Failed to copy option %s. Error: %s" % (str(option), str(e)))

            # Expand lists
            if type(geo_obj) is list:
                GeometryObject.merge(geo_list=geo_obj, geo_final=geo_final)
            # If not list, just append
            else:
                if multigeo is None or multigeo is False:
                    geo_final.multigeo = False
                else:
                    geo_final.multigeo = True

                try:
                    new_solid_geometry += deepcopy(geo_obj.solid_geometry)
                except Exception as e:
                    log.debug("GeometryObject.merge() --> %s" % str(e))

                # find the tool_uid maximum value in the geo_final
                try:
                    max_uid = max([int(i) for i in new_tools.keys()])
                except ValueError:
                    max_uid = 0

                # add and merge tools. If what we try to merge as Geometry is Excellon's and/or Gerber's then don't try
                # to merge the obj.tools as it is likely there is none to merge.
                if geo_obj.kind != 'gerber' and geo_obj.kind != 'excellon':
                    for tool_uid in geo_obj.tools:
                        max_uid += 1
                        new_tools[max_uid] = deepcopy(geo_obj.tools[tool_uid])

        geo_final.options.update(new_options)
        geo_final.solid_geometry = new_solid_geometry
        geo_final.tools = new_tools

    @staticmethod
    def get_pts(o):
        """
        Returns a list of all points in the object, where
        the object can be a MultiPolygon, Polygon, Not a polygon, or a list
        of such. Search is done recursively.

        :param: geometric object
        :return: List of points
        :rtype: list
        """
        pts = []

        # Iterable: descend into each item.
        try:
            for subo in o:
                pts += GeometryObject.get_pts(subo)

        # Non-iterable
        except TypeError:
            if o is not None:
                if type(o) == MultiPolygon:
                    for poly in o:
                        pts += GeometryObject.get_pts(poly)
                # ## Descend into .exerior and .interiors
                elif type(o) == Polygon:
                    pts += GeometryObject.get_pts(o.exterior)
                    for i in o.interiors:
                        pts += GeometryObject.get_pts(i)
                elif type(o) == MultiLineString:
                    for line in o:
                        pts += GeometryObject.get_pts(line)
                # ## Has .coords: list them.
                else:
                    pts += list(o.coords)
            else:
                return
        return pts