Geografic-Information-System/gui/wxpython/vdigit/preferences.py

"""
@package vdigit.preferences

@brief wxGUI vector digitizer preferences dialogs

Classes:
 - preferences::VDigitSettingsDialog

(C) 2007-2011 by the GRASS Development Team

This program is free software under the GNU General Public License
(>=v2). Read the file COPYING that comes with GRASS for details.

@author Martin Landa <landa.martin gmail.com>
"""

import textwrap
import six

import wx
import wx.lib.colourselect as csel

from gui_core.gselect import ColumnSelect
from core.units import Units
from core.settings import UserSettings
from gui_core.wrap import Button, CheckBox, SpinCtrl, StaticBox, StaticText


class VDigitSettingsDialog(wx.Dialog):
    def __init__(
        self,
        parent,
        giface,
        title=_("Digitization settings"),
        style=wx.DEFAULT_DIALOG_STYLE,
    ):
        """Standard settings dialog for digitization purposes"""
        wx.Dialog.__init__(self, parent=parent, id=wx.ID_ANY, title=title, style=style)

        self._giface = giface
        self.parent = parent  # MapFrame
        self.digit = self.parent.MapWindow.digit

        # notebook
        notebook = wx.Notebook(parent=self, id=wx.ID_ANY, style=wx.BK_DEFAULT)
        self._createGeneralPage(notebook)
        self._createSymbologyPage(notebook)
        self.digit.SetCategory()
        self._createAttributesPage(notebook)
        self._createQueryPage(notebook)

        # buttons
        btnApply = Button(self, wx.ID_APPLY)
        btnCancel = Button(self, wx.ID_CLOSE)
        btnSave = Button(self, wx.ID_SAVE)
        btnSave.SetDefault()

        # bindigs
        btnApply.Bind(wx.EVT_BUTTON, self.OnApply)
        btnApply.SetToolTip(_("Apply changes for this session"))
        btnApply.SetDefault()
        btnSave.Bind(wx.EVT_BUTTON, self.OnSave)
        btnSave.SetToolTip(_("Close dialog and save changes to user settings file"))
        btnCancel.Bind(wx.EVT_BUTTON, self.OnCancel)
        btnCancel.SetToolTip(_("Close dialog and ignore changes"))

        # sizers
        btnSizer = wx.BoxSizer(wx.HORIZONTAL)
        btnSizer.Add(btnCancel, proportion=0, flag=wx.ALL, border=5)
        btnSizer.Add(btnApply, proportion=0, flag=wx.ALL, border=5)
        btnSizer.Add(btnSave, proportion=0, flag=wx.ALL, border=5)

        mainSizer = wx.BoxSizer(wx.VERTICAL)
        mainSizer.Add(notebook, proportion=1, flag=wx.EXPAND | wx.ALL, border=5)
        mainSizer.Add(btnSizer, proportion=0, flag=wx.ALIGN_RIGHT, border=5)

        self.Bind(wx.EVT_CLOSE, self.OnCancel)

        self.SetSizer(mainSizer)
        mainSizer.Fit(self)

    def _createSymbologyPage(self, notebook):
        """Create notebook page concerning symbology settings"""
        panel = wx.Panel(parent=notebook, id=wx.ID_ANY)
        notebook.AddPage(page=panel, text=_("Symbology"))

        sizer = wx.BoxSizer(wx.VERTICAL)

        flexSizer = wx.FlexGridSizer(cols=3, hgap=5, vgap=5)
        flexSizer.AddGrowableCol(0)

        self.symbology = {}
        for label, key in self._symbologyData():
            textLabel = StaticText(panel, wx.ID_ANY, label)
            color = csel.ColourSelect(
                panel,
                id=wx.ID_ANY,
                colour=UserSettings.Get(
                    group="vdigit", key="symbol", subkey=[key, "color"]
                ),
                size=(40, 25),
            )
            isEnabled = UserSettings.Get(
                group="vdigit", key="symbol", subkey=[key, "enabled"]
            )
            if isEnabled is not None:
                enabled = CheckBox(panel, id=wx.ID_ANY, label="")
                enabled.SetValue(isEnabled)
                self.symbology[key] = (enabled, color)
            else:
                enabled = (1, 1)
                self.symbology[key] = (None, color)

            flexSizer.Add(textLabel, proportion=0, flag=wx.ALIGN_CENTER_VERTICAL)
            flexSizer.Add(
                enabled, proportion=0, flag=wx.ALIGN_CENTER | wx.FIXED_MINSIZE
            )
            flexSizer.Add(color, proportion=0, flag=wx.ALIGN_RIGHT | wx.FIXED_MINSIZE)
            color.SetName("GetColour")

        sizer.Add(flexSizer, proportion=1, flag=wx.ALL | wx.EXPAND, border=10)

        panel.SetSizer(sizer)

        return panel

    def _createGeneralPage(self, notebook):
        """Create notebook page concerning general settings"""
        panel = wx.Panel(parent=notebook, id=wx.ID_ANY)
        notebook.AddPage(page=panel, text=_("General"))

        border = wx.BoxSizer(wx.VERTICAL)

        #
        # display section
        #
        box = StaticBox(parent=panel, id=wx.ID_ANY, label=" %s " % _("Display"))
        sizer = wx.StaticBoxSizer(box, wx.VERTICAL)
        flexSizer = wx.FlexGridSizer(cols=3, hgap=5, vgap=5)
        flexSizer.AddGrowableCol(0)
        # line width
        text = StaticText(parent=panel, id=wx.ID_ANY, label=_("Line width"))
        self.lineWidthValue = SpinCtrl(
            parent=panel,
            id=wx.ID_ANY,
            size=(75, -1),
            initial=UserSettings.Get(group="vdigit", key="lineWidth", subkey="value"),
            min=1,
            max=1e6,
        )
        units = StaticText(
            parent=panel,
            id=wx.ID_ANY,
            size=(115, -1),
            label=UserSettings.Get(group="vdigit", key="lineWidth", subkey="units"),
            style=wx.ALIGN_LEFT,
        )
        flexSizer.Add(text, proportion=0, flag=wx.ALIGN_CENTER_VERTICAL)
        flexSizer.Add(
            self.lineWidthValue, proportion=0, flag=wx.ALIGN_CENTER | wx.FIXED_MINSIZE
        )
        flexSizer.Add(
            units,
            proportion=0,
            flag=wx.ALIGN_RIGHT | wx.FIXED_MINSIZE | wx.ALIGN_CENTER_VERTICAL | wx.LEFT,
            border=10,
        )

        sizer.Add(flexSizer, proportion=1, flag=wx.ALL | wx.EXPAND, border=1)
        border.Add(sizer, proportion=0, flag=wx.ALL | wx.EXPAND, border=5)

        #
        # snapping section
        #
        box = StaticBox(parent=panel, id=wx.ID_ANY, label=" %s " % _("Snapping"))
        sizer = wx.StaticBoxSizer(box, wx.VERTICAL)
        flexSizer = wx.FlexGridSizer(cols=3, hgap=5, vgap=5)
        flexSizer.AddGrowableCol(0)

        # snapping
        text = StaticText(parent=panel, id=wx.ID_ANY, label=_("Snapping threshold"))
        self.snappingValue = SpinCtrl(
            parent=panel,
            id=wx.ID_ANY,
            size=(75, -1),
            initial=UserSettings.Get(group="vdigit", key="snapping", subkey="value"),
            min=-1,
            max=1e6,
        )
        self.snappingValue.Bind(wx.EVT_SPINCTRL, self.OnChangeSnappingValue)
        self.snappingValue.Bind(wx.EVT_TEXT, self.OnChangeSnappingValue)
        self.snappingUnit = wx.Choice(
            parent=panel,
            id=wx.ID_ANY,
            size=(125, -1),
            choices=[_("screen pixels"), _("map units")],
        )
        try:
            self.snappingUnit.SetSelection(
                UserSettings.Get(group="vdigit", key="snapping", subkey="unit")
            )
        except:
            self.snappingUnit.SetSelection(0)
        self.snappingUnit.Bind(wx.EVT_CHOICE, self.OnChangeSnappingUnits)
        flexSizer.Add(text, proportion=0, flag=wx.ALIGN_CENTER_VERTICAL)
        flexSizer.Add(
            self.snappingValue, proportion=0, flag=wx.ALIGN_CENTER | wx.FIXED_MINSIZE
        )
        flexSizer.Add(
            self.snappingUnit, proportion=0, flag=wx.ALIGN_RIGHT | wx.FIXED_MINSIZE
        )

        vertexSizer = wx.BoxSizer(wx.VERTICAL)
        self.snapVertex = CheckBox(
            parent=panel, id=wx.ID_ANY, label=_("Snap also to vertex")
        )
        self.snapVertex.SetValue(
            UserSettings.Get(group="vdigit", key="snapToVertex", subkey="enabled")
        )
        vertexSizer.Add(self.snapVertex, proportion=0, flag=wx.EXPAND)
        self.mapUnits = self.parent.MapWindow.Map.GetProjInfo()["units"]
        self.snappingInfo = StaticText(
            parent=panel,
            id=wx.ID_ANY,
            label=_("Snapping threshold is %(value).1f %(units)s")
            % {"value": self.digit.GetDisplay().GetThreshold(), "units": self.mapUnits},
        )
        vertexSizer.Add(
            self.snappingInfo, proportion=0, flag=wx.ALL | wx.EXPAND, border=1
        )

        sizer.Add(flexSizer, proportion=1, flag=wx.EXPAND)
        sizer.Add(vertexSizer, proportion=1, flag=wx.EXPAND)
        border.Add(
            sizer,
            proportion=0,
            flag=wx.LEFT | wx.RIGHT | wx.BOTTOM | wx.EXPAND,
            border=5,
        )

        #
        # select box
        #
        box = StaticBox(
            parent=panel, id=wx.ID_ANY, label=" %s " % _("Select vector features")
        )
        # feature type
        sizer = wx.StaticBoxSizer(box, wx.VERTICAL)
        inSizer = wx.BoxSizer(wx.HORIZONTAL)
        self.selectFeature = {}
        for feature in ("point", "line", "centroid", "boundary"):
            chkbox = CheckBox(parent=panel, label=feature)
            self.selectFeature[feature] = chkbox.GetId()
            chkbox.SetValue(
                UserSettings.Get(
                    group="vdigit", key="selectType", subkey=[feature, "enabled"]
                )
            )
            inSizer.Add(chkbox, proportion=0, flag=wx.EXPAND | wx.ALL, border=5)
        sizer.Add(inSizer, proportion=0, flag=wx.EXPAND)
        # threshold
        flexSizer = wx.FlexGridSizer(cols=3, hgap=5, vgap=5)
        flexSizer.AddGrowableCol(0)
        text = StaticText(parent=panel, id=wx.ID_ANY, label=_("Select threshold"))
        self.selectThreshValue = SpinCtrl(
            parent=panel,
            id=wx.ID_ANY,
            size=(75, -1),
            initial=UserSettings.Get(
                group="vdigit", key="selectThresh", subkey="value"
            ),
            min=1,
            max=1e6,
        )
        units = StaticText(
            parent=panel,
            id=wx.ID_ANY,
            size=(115, -1),
            label=UserSettings.Get(group="vdigit", key="lineWidth", subkey="units"),
            style=wx.ALIGN_LEFT,
        )
        flexSizer.Add(text, proportion=0, flag=wx.ALIGN_CENTER_VERTICAL)
        flexSizer.Add(
            self.selectThreshValue,
            proportion=0,
            flag=wx.ALIGN_CENTER | wx.FIXED_MINSIZE,
        )
        flexSizer.Add(
            units,
            proportion=0,
            flag=wx.ALIGN_RIGHT | wx.FIXED_MINSIZE | wx.ALIGN_CENTER_VERTICAL | wx.LEFT,
            border=10,
        )

        self.selectIn = CheckBox(
            parent=panel,
            id=wx.ID_ANY,
            label=_("Select only features inside of selection bounding box"),
        )
        self.selectIn.SetValue(
            UserSettings.Get(group="vdigit", key="selectInside", subkey="enabled")
        )
        self.selectIn.SetToolTip(
            _(
                "By default are selected all features overlapping selection bounding box "
            )
        )

        self.checkForDupl = CheckBox(
            parent=panel, id=wx.ID_ANY, label=_("Check for duplicates")
        )
        self.checkForDupl.SetValue(
            UserSettings.Get(group="vdigit", key="checkForDupl", subkey="enabled")
        )

        sizer.Add(flexSizer, proportion=0, flag=wx.EXPAND)
        sizer.Add(self.selectIn, proportion=0, flag=wx.EXPAND | wx.ALL, border=1)
        sizer.Add(self.checkForDupl, proportion=0, flag=wx.EXPAND | wx.ALL, border=1)
        border.Add(
            sizer,
            proportion=0,
            flag=wx.EXPAND | wx.LEFT | wx.RIGHT | wx.BOTTOM,
            border=5,
        )

        #
        # digitize lines box
        #
        box = StaticBox(
            parent=panel, id=wx.ID_ANY, label=" %s " % _("Digitize lines/boundaries")
        )
        sizer = wx.StaticBoxSizer(box, wx.VERTICAL)

        self.intersect = CheckBox(parent=panel, label=_("Break lines at intersection"))
        self.intersect.SetValue(
            UserSettings.Get(group="vdigit", key="breakLines", subkey="enabled")
        )

        sizer.Add(self.intersect, proportion=0, flag=wx.ALL | wx.EXPAND, border=1)

        border.Add(
            sizer,
            proportion=0,
            flag=wx.EXPAND | wx.LEFT | wx.RIGHT | wx.BOTTOM,
            border=5,
        )

        #
        # digitize areas box
        #
        box = StaticBox(parent=panel, id=wx.ID_ANY, label=" %s " % _("Digitize areas"))
        sizer = wx.StaticBoxSizer(box, wx.VERTICAL)

        self.closeBoundary = CheckBox(
            parent=panel, label=_("Close boundary (snap to the start node)")
        )
        self.closeBoundary.SetValue(
            UserSettings.Get(group="vdigit", key="closeBoundary", subkey="enabled")
        )

        sizer.Add(self.closeBoundary, proportion=0, flag=wx.ALL | wx.EXPAND, border=1)

        border.Add(
            sizer,
            proportion=0,
            flag=wx.EXPAND | wx.LEFT | wx.RIGHT | wx.BOTTOM,
            border=5,
        )

        #
        # save-on-exit box
        #
        box = StaticBox(parent=panel, id=wx.ID_ANY, label=" %s " % _("Save changes"))
        # save changes on exit?
        sizer = wx.StaticBoxSizer(box, wx.VERTICAL)
        self.save = CheckBox(parent=panel, label=_("Save changes on exit"))
        self.save.SetValue(
            UserSettings.Get(group="vdigit", key="saveOnExit", subkey="enabled")
        )
        sizer.Add(self.save, proportion=0, flag=wx.ALL | wx.EXPAND, border=1)
        border.Add(
            sizer,
            proportion=0,
            flag=wx.EXPAND | wx.LEFT | wx.RIGHT | wx.BOTTOM,
            border=5,
        )

        panel.SetSizer(border)

        return panel

    def _createQueryPage(self, notebook):
        """Create notebook page for query tool"""
        panel = wx.Panel(parent=notebook, id=wx.ID_ANY)
        notebook.AddPage(page=panel, text=_("Query tool"))

        border = wx.BoxSizer(wx.VERTICAL)

        #
        # query tool box
        #
        box = StaticBox(
            parent=panel, id=wx.ID_ANY, label=" %s " % _("Choose query tool")
        )
        sizer = wx.StaticBoxSizer(box, wx.VERTICAL)

        LocUnits = self.parent.MapWindow.Map.GetProjInfo()["units"]

        self.queryBox = CheckBox(parent=panel, id=wx.ID_ANY, label=_("Select by box"))
        self.queryBox.SetValue(
            UserSettings.Get(group="vdigit", key="query", subkey="box")
        )

        sizer.Add(self.queryBox, proportion=0, flag=wx.ALL | wx.EXPAND, border=1)
        sizer.Add((0, 5))

        #
        # length
        #
        self.queryLength = wx.RadioButton(parent=panel, id=wx.ID_ANY, label=_("length"))
        self.queryLength.Bind(wx.EVT_RADIOBUTTON, self.OnChangeQuery)
        sizer.Add(self.queryLength, proportion=0, flag=wx.ALL | wx.EXPAND, border=1)
        flexSizer = wx.FlexGridSizer(cols=4, hgap=5, vgap=5)
        flexSizer.AddGrowableCol(0)
        txt = StaticText(parent=panel, id=wx.ID_ANY, label=_("Select lines"))
        self.queryLengthSL = wx.Choice(
            parent=panel, id=wx.ID_ANY, choices=[_("shorter than"), _("longer than")]
        )
        self.queryLengthSL.SetSelection(
            UserSettings.Get(group="vdigit", key="queryLength", subkey="than-selection")
        )
        self.queryLengthValue = SpinCtrl(
            parent=panel, id=wx.ID_ANY, size=(100, -1), initial=1, min=0, max=1e6
        )
        self.queryLengthValue.SetValue(
            UserSettings.Get(group="vdigit", key="queryLength", subkey="thresh")
        )
        units = StaticText(parent=panel, id=wx.ID_ANY, label="%s" % LocUnits)
        flexSizer.Add(txt, proportion=0, flag=wx.ALIGN_CENTER_VERTICAL)
        flexSizer.Add(
            self.queryLengthSL, proportion=0, flag=wx.ALIGN_CENTER | wx.FIXED_MINSIZE
        )
        flexSizer.Add(
            self.queryLengthValue, proportion=0, flag=wx.ALIGN_CENTER | wx.FIXED_MINSIZE
        )
        flexSizer.Add(units, proportion=0, flag=wx.ALIGN_CENTER_VERTICAL)
        sizer.Add(flexSizer, proportion=0, flag=wx.ALL | wx.EXPAND, border=1)

        #
        # dangle
        #
        self.queryDangle = wx.RadioButton(parent=panel, id=wx.ID_ANY, label=_("dangle"))
        self.queryDangle.Bind(wx.EVT_RADIOBUTTON, self.OnChangeQuery)
        sizer.Add(self.queryDangle, proportion=0, flag=wx.ALL | wx.EXPAND, border=1)
        flexSizer = wx.FlexGridSizer(cols=4, hgap=5, vgap=5)
        flexSizer.AddGrowableCol(0)
        txt = StaticText(parent=panel, id=wx.ID_ANY, label=_("Select dangles"))
        self.queryDangleSL = wx.Choice(
            parent=panel, id=wx.ID_ANY, choices=[_("shorter than"), _("longer than")]
        )
        self.queryDangleSL.SetSelection(
            UserSettings.Get(group="vdigit", key="queryDangle", subkey="than-selection")
        )
        self.queryDangleValue = SpinCtrl(
            parent=panel, id=wx.ID_ANY, size=(100, -1), initial=1, min=0, max=1e6
        )
        self.queryDangleValue.SetValue(
            UserSettings.Get(group="vdigit", key="queryDangle", subkey="thresh")
        )
        units = StaticText(parent=panel, id=wx.ID_ANY, label="%s" % LocUnits)
        flexSizer.Add(txt, proportion=0, flag=wx.ALIGN_CENTER_VERTICAL)
        flexSizer.Add(
            self.queryDangleSL, proportion=0, flag=wx.ALIGN_CENTER | wx.FIXED_MINSIZE
        )
        flexSizer.Add(
            self.queryDangleValue, proportion=0, flag=wx.ALIGN_CENTER | wx.FIXED_MINSIZE
        )
        flexSizer.Add(units, proportion=0, flag=wx.ALIGN_CENTER_VERTICAL)
        sizer.Add(flexSizer, proportion=0, flag=wx.ALL | wx.EXPAND, border=1)

        if UserSettings.Get(group="vdigit", key="query", subkey="selection") == 0:
            self.queryLength.SetValue(True)
        else:
            self.queryDangle.SetValue(True)

        # enable & disable items
        self.OnChangeQuery(None)

        border.Add(sizer, proportion=0, flag=wx.ALL | wx.EXPAND, border=5)

        panel.SetSizer(border)

        return panel

    def _createAttributesPage(self, notebook):
        """Create notebook page for attributes"""
        panel = wx.Panel(parent=notebook, id=wx.ID_ANY)
        notebook.AddPage(page=panel, text=_("Attributes"))

        border = wx.BoxSizer(wx.VERTICAL)

        #
        # add new record
        #
        box = StaticBox(
            parent=panel, id=wx.ID_ANY, label=" %s " % _("Digitize new feature")
        )
        sizer = wx.StaticBoxSizer(box, wx.VERTICAL)

        # checkbox
        self.addRecord = CheckBox(
            parent=panel, id=wx.ID_ANY, label=_("Add new record into table")
        )
        self.addRecord.SetValue(
            UserSettings.Get(group="vdigit", key="addRecord", subkey="enabled")
        )
        sizer.Add(self.addRecord, proportion=0, flag=wx.ALL | wx.EXPAND, border=1)
        # settings
        flexSizer = wx.FlexGridSizer(cols=2, hgap=3, vgap=3)
        flexSizer.AddGrowableCol(0)
        settings = ((_("Layer"), 1), (_("Category"), 1), (_("Mode"), _("Next to use")))
        # layer
        text = StaticText(parent=panel, id=wx.ID_ANY, label=_("Layer"))
        self.layer = SpinCtrl(
            parent=panel, id=wx.ID_ANY, size=(125, -1), min=1, max=1e3
        )
        self.layer.SetValue(
            int(UserSettings.Get(group="vdigit", key="layer", subkey="value"))
        )
        flexSizer.Add(text, proportion=0, flag=wx.ALIGN_CENTER_VERTICAL)
        flexSizer.Add(
            self.layer, proportion=0, flag=wx.FIXED_MINSIZE | wx.ALIGN_CENTER_VERTICAL
        )
        # category number
        text = StaticText(parent=panel, id=wx.ID_ANY, label=_("Category number"))
        self.category = SpinCtrl(
            parent=panel,
            id=wx.ID_ANY,
            size=(125, -1),
            initial=UserSettings.Get(group="vdigit", key="category", subkey="value"),
            min=-1e9,
            max=1e9,
        )
        if (
            UserSettings.Get(group="vdigit", key="categoryMode", subkey="selection")
            != 1
        ):
            self.category.Enable(False)
        flexSizer.Add(text, proportion=0, flag=wx.ALIGN_CENTER_VERTICAL)
        flexSizer.Add(
            self.category,
            proportion=0,
            flag=wx.FIXED_MINSIZE | wx.ALIGN_CENTER_VERTICAL,
        )
        # category mode
        text = StaticText(parent=panel, id=wx.ID_ANY, label=_("Category mode"))
        self.categoryMode = wx.Choice(
            parent=panel,
            id=wx.ID_ANY,
            size=(125, -1),
            choices=[_("Next to use"), _("Manual entry"), _("No category")],
        )
        self.categoryMode.SetSelection(
            UserSettings.Get(group="vdigit", key="categoryMode", subkey="selection")
        )
        flexSizer.Add(text, proportion=0, flag=wx.ALIGN_CENTER_VERTICAL)
        flexSizer.Add(
            self.categoryMode,
            proportion=0,
            flag=wx.FIXED_MINSIZE | wx.ALIGN_CENTER_VERTICAL,
        )

        sizer.Add(flexSizer, proportion=1, flag=wx.ALL | wx.EXPAND, border=1)
        border.Add(sizer, proportion=0, flag=wx.ALL | wx.EXPAND, border=5)

        #
        # delete existing record
        #
        box = StaticBox(
            parent=panel, id=wx.ID_ANY, label=" %s " % _("Delete existing feature(s)")
        )
        sizer = wx.StaticBoxSizer(box, wx.VERTICAL)

        # checkbox
        self.deleteRecord = CheckBox(
            parent=panel, id=wx.ID_ANY, label=_("Delete record from table")
        )
        self.deleteRecord.SetValue(
            UserSettings.Get(group="vdigit", key="delRecord", subkey="enabled")
        )
        sizer.Add(self.deleteRecord, proportion=0, flag=wx.ALL | wx.EXPAND, border=1)
        border.Add(
            sizer,
            proportion=0,
            flag=wx.LEFT | wx.RIGHT | wx.BOTTOM | wx.EXPAND,
            border=5,
        )

        #
        # geometry attributes (currently only length and area are supported)
        #
        box = StaticBox(
            parent=panel, id=wx.ID_ANY, label=" %s " % _("Geometry attributes")
        )
        sizer = wx.StaticBoxSizer(box, wx.VERTICAL)
        gridSizer = wx.GridBagSizer(hgap=3, vgap=3)
        self.geomAttrb = {
            "length": {"label": _("length")},
            "area": {"label": _("area")},
            "perimeter": {"label": _("perimeter")},
        }

        digitToolbar = self.parent.toolbars["vdigit"]
        try:
            vectorName = digitToolbar.GetLayer().GetName()
        except AttributeError:
            vectorName = None  # no vector selected for editing
        layer = UserSettings.Get(group="vdigit", key="layer", subkey="value")
        mapLayer = self.parent.toolbars["vdigit"].GetLayer()
        tree = self.parent.tree
        if tree:
            item = tree.FindItemByData("maplayer", mapLayer)
        else:
            item = None
        row = 0
        for attrb in ["length", "area", "perimeter"]:
            # checkbox
            check = CheckBox(
                parent=panel, id=wx.ID_ANY, label=self.geomAttrb[attrb]["label"]
            )
            # self.deleteRecord.SetValue(UserSettings.Get(group='vdigit', key="delRecord", subkey='enabled'))
            check.Bind(wx.EVT_CHECKBOX, self.OnGeomAttrb)
            # column (only numeric)
            column = ColumnSelect(parent=panel, size=(200, -1))
            column.InsertColumns(
                vector=vectorName,
                layer=layer,
                excludeKey=True,
                type=["integer", "double precision"],
            )
            # units
            if attrb == "area":
                choices = Units.GetUnitsList("area")
            else:
                choices = Units.GetUnitsList("length")
            win_units = wx.Choice(
                parent=panel, id=wx.ID_ANY, choices=choices, size=(120, -1)
            )

            # default values
            check.SetValue(False)
            if (
                item
                and tree.GetLayerInfo(item, key="vdigit")
                and "geomAttr" in tree.GetLayerInfo(item, key="vdigit")
                and attrb in tree.GetLayerInfo(item, key="vdigit")["geomAttr"]
            ):
                check.SetValue(True)
                column.SetStringSelection(
                    tree.GetLayerInfo(item, key="vdigit")["geomAttr"][attrb]["column"]
                )
                if attrb == "area":
                    type = "area"
                else:
                    type = "length"
                unitsIdx = Units.GetUnitsIndex(
                    type,
                    tree.GetLayerInfo(item, key="vdigit")["geomAttr"][attrb]["units"],
                )
                win_units.SetSelection(unitsIdx)

            if not vectorName:
                check.Enable(False)
                column.Enable(False)

            if not check.IsChecked():
                column.Enable(False)

            self.geomAttrb[attrb]["check"] = check.GetId()
            self.geomAttrb[attrb]["column"] = column.GetId()
            self.geomAttrb[attrb]["units"] = win_units.GetId()

            gridSizer.Add(check, flag=wx.ALIGN_CENTER_VERTICAL, pos=(row, 0))
            gridSizer.Add(column, pos=(row, 1))
            gridSizer.Add(win_units, pos=(row, 2))
            row += 1

        note = "\n".join(
            textwrap.wrap(
                _(
                    "Note: These settings are stored "
                    "in the workspace not in the vector digitizer "
                    "preferences."
                ),
                55,
            )
        )
        gridSizer.Add(
            StaticText(parent=panel, id=wx.ID_ANY, label=note), pos=(3, 0), span=(1, 3)
        )

        gridSizer.AddGrowableCol(0)
        sizer.Add(gridSizer, proportion=1, flag=wx.ALL | wx.EXPAND, border=1)
        border.Add(
            sizer,
            proportion=0,
            flag=wx.LEFT | wx.RIGHT | wx.BOTTOM | wx.EXPAND,
            border=5,
        )

        # bindings
        self.Bind(wx.EVT_CHECKBOX, self.OnChangeAddRecord, self.addRecord)
        self.Bind(wx.EVT_CHOICE, self.OnChangeCategoryMode, self.categoryMode)
        self.Bind(wx.EVT_SPINCTRL, self.OnChangeLayer, self.layer)

        panel.SetSizer(border)

        return panel

    def _symbologyData(self):
        """Data for _createSymbologyPage()

        label | checkbox | color
        """

        return (
            (_("Digitize new line segment"), "newSegment"),
            (_("Digitize new line/boundary"), "newLine"),
            (_("Highlight"), "highlight"),
            (_("Highlight (duplicates)"), "highlightDupl"),
            (_("Point"), "point"),
            (_("Line"), "line"),
            (_("Boundary (no area)"), "boundaryNo"),
            (_("Boundary (one area)"), "boundaryOne"),
            (_("Boundary (two areas)"), "boundaryTwo"),
            (_("Centroid (in area)"), "centroidIn"),
            (_("Centroid (outside area)"), "centroidOut"),
            (_("Centroid (duplicate in area)"), "centroidDup"),
            (_("Node (one line)"), "nodeOne"),
            (_("Node (two lines)"), "nodeTwo"),
            (_("Vertex"), "vertex"),
            (_("Area (closed boundary + centroid)"), "area"),
            (_("Direction"), "direction"),
        )

    def OnGeomAttrb(self, event):
        """Register geometry attributes (enable/disable)"""
        checked = event.IsChecked()
        id = event.GetId()
        key = None
        for attrb, val in six.iteritems(self.geomAttrb):
            if val["check"] == id:
                key = attrb
                break

        column = self.FindWindowById(self.geomAttrb[key]["column"])
        if checked:
            column.Enable()
        else:
            column.Enable(False)

    def OnChangeCategoryMode(self, event):
        """Change category mode"""
        mode = event.GetSelection()
        UserSettings.Set(
            group="vdigit", key="categoryMode", subkey="selection", value=mode
        )
        if mode == 1:  # manual entry
            self.category.Enable(True)
        elif self.category.IsEnabled():  # disable
            self.category.Enable(False)

        if mode == 2 and self.addRecord.IsChecked():  # no category
            self.addRecord.SetValue(False)

        self.digit.SetCategory()
        self.category.SetValue(
            UserSettings.Get(group="vdigit", key="category", subkey="value")
        )

    def OnChangeLayer(self, event):
        """Layer changed"""
        layer = event.GetInt()
        if layer > 0:
            UserSettings.Set(group="vdigit", key="layer", subkey="value", value=layer)
            self.digit.SetCategory()
            self.category.SetValue(
                UserSettings.Get(group="vdigit", key="category", subkey="value")
            )

        event.Skip()

    def OnChangeAddRecord(self, event):
        """Checkbox 'Add new record' status changed"""
        pass
        # self.category.SetValue(self.digit.SetCategory())

    def OnChangeSnappingValue(self, event):
        """Change snapping value - update static text"""
        value = self.snappingValue.GetValue()

        if value < 0:
            region = self.parent.MapWindow.Map.GetRegion()
            res = (region["nsres"] + region["ewres"]) / 2.0
            threshold = self.digit.GetDisplay().GetThreshold(value=res)
        else:
            if self.snappingUnit.GetSelection() == 1:  # map units
                threshold = value
            else:
                threshold = self.digit.GetDisplay().GetThreshold(value=value)

        if value == 0:
            self.snappingInfo.SetLabel(_("Snapping disabled"))
        elif value < 0:
            self.snappingInfo.SetLabel(
                _(
                    "Snapping threshold is %(value).1f %(units)s "
                    "(based on comp. resolution)"
                )
                % {"value": threshold, "units": self.mapUnits.lower()}
            )
        else:
            self.snappingInfo.SetLabel(
                _("Snapping threshold is %(value).1f %(units)s")
                % {"value": threshold, "units": self.mapUnits.lower()}
            )

        event.Skip()

    def OnChangeSnappingUnits(self, event):
        """Snapping units change -> update static text"""
        value = self.snappingValue.GetValue()
        units = self.snappingUnit.GetSelection()
        threshold = self.digit.GetDisplay().GetThreshold(value=value, units=units)

        if units == 1:  # map units
            self.snappingInfo.SetLabel(
                _("Snapping threshold is %(value).1f %(units)s")
                % {"value": value, "units": self.mapUnits}
            )
        else:
            self.snappingInfo.SetLabel(
                _("Snapping threshold is %(value).1f %(units)s")
                % {"value": threshold, "units": self.mapUnits}
            )

        event.Skip()

    def OnChangeQuery(self, event):
        """Change query"""
        if self.queryLength.GetValue():
            # length
            self.queryLengthSL.Enable(True)
            self.queryLengthValue.Enable(True)
            self.queryDangleSL.Enable(False)
            self.queryDangleValue.Enable(False)
        else:
            # dangle
            self.queryLengthSL.Enable(False)
            self.queryLengthValue.Enable(False)
            self.queryDangleSL.Enable(True)
            self.queryDangleValue.Enable(True)

    def OnSave(self, event):
        """Button 'Save' pressed"""
        self.UpdateSettings()
        self.parent.toolbars["vdigit"].settingsDialog = None

        fileSettings = {}
        UserSettings.ReadSettingsFile(settings=fileSettings)
        fileSettings["vdigit"] = UserSettings.Get(group="vdigit")

        sfile = UserSettings.SaveToFile(fileSettings)
        self._giface.WriteLog(
            _("Vector digitizer settings saved to file <%s>.") % sfile
        )

        self.Destroy()

        event.Skip()

    def OnApply(self, event):
        """Button 'Apply' pressed"""
        self.UpdateSettings()

    def OnCancel(self, event):
        """Button 'Cancel' pressed"""
        self.parent.toolbars["vdigit"].settingsDialog = None
        self.Destroy()

        if event:
            event.Skip()

    def UpdateSettings(self):
        """Update digitizer settings

        .. todo::
            Needs refactoring
        """
        if self.parent.GetLayerManager():
            self._giface.workspaceChanged.emit()
        # symbology
        for key, (enabled, color) in six.iteritems(self.symbology):
            if enabled:
                UserSettings.Set(
                    group="vdigit",
                    key="symbol",
                    subkey=[key, "enabled"],
                    value=enabled.IsChecked(),
                )
                UserSettings.Set(
                    group="vdigit",
                    key="symbol",
                    subkey=[key, "color"],
                    value=tuple(color.GetColour()),
                )
            else:
                UserSettings.Set(
                    group="vdigit",
                    key="symbol",
                    subkey=[key, "color"],
                    value=tuple(color.GetColour()),
                )
        # display
        UserSettings.Set(
            group="vdigit",
            key="lineWidth",
            subkey="value",
            value=int(self.lineWidthValue.GetValue()),
        )

        # snapping
        UserSettings.Set(
            group="vdigit",
            key="snapping",
            subkey="value",
            value=int(self.snappingValue.GetValue()),
        )
        UserSettings.Set(
            group="vdigit",
            key="snapping",
            subkey="unit",
            value=self.snappingUnit.GetSelection(),
        )
        UserSettings.Set(
            group="vdigit",
            key="snapToVertex",
            subkey="enabled",
            value=self.snapVertex.IsChecked(),
        )

        # digitize new feature
        UserSettings.Set(
            group="vdigit",
            key="addRecord",
            subkey="enabled",
            value=self.addRecord.IsChecked(),
        )
        UserSettings.Set(
            group="vdigit",
            key="layer",
            subkey="value",
            value=int(self.layer.GetValue()),
        )
        UserSettings.Set(
            group="vdigit",
            key="category",
            subkey="value",
            value=int(self.category.GetValue()),
        )
        UserSettings.Set(
            group="vdigit",
            key="categoryMode",
            subkey="selection",
            value=self.categoryMode.GetSelection(),
        )

        # delete existing feature
        UserSettings.Set(
            group="vdigit",
            key="delRecord",
            subkey="enabled",
            value=self.deleteRecord.IsChecked(),
        )

        # geometry attributes (workspace)
        mapLayer = self.parent.toolbars["vdigit"].GetLayer()
        tree = self._giface.GetLayerTree()
        if tree:
            item = tree.FindItemByData("maplayer", mapLayer)
        else:
            item = None
        for key, val in six.iteritems(self.geomAttrb):
            checked = self.FindWindowById(val["check"]).IsChecked()
            column = self.FindWindowById(val["column"]).GetValue()
            unitsIdx = self.FindWindowById(val["units"]).GetSelection()
            if item and not tree.GetLayerInfo(item, key="vdigit"):
                tree.SetLayerInfo(item, key="vdigit", value={"geomAttr": dict()})

            if checked:  # enable
                if key == "area":
                    type = key
                else:
                    type = "length"
                unitsKey = Units.GetUnitsKey(type, unitsIdx)
                tree.GetLayerInfo(item, key="vdigit")["geomAttr"][key] = {
                    "column": column,
                    "units": unitsKey,
                }
            else:
                if (
                    item
                    and tree.GetLayerInfo(item, key="vdigit")
                    and key in tree.GetLayerInfo(item, key="vdigit")["geomAttr"]
                ):
                    del tree.GetLayerInfo(item, key="vdigit")["geomAttr"][key]

        # query tool
        if self.queryLength.GetValue():
            UserSettings.Set(group="vdigit", key="query", subkey="selection", value=0)
        else:
            UserSettings.Set(group="vdigit", key="query", subkey="type", value=1)
        UserSettings.Set(
            group="vdigit", key="query", subkey="box", value=self.queryBox.IsChecked()
        )
        UserSettings.Set(
            group="vdigit",
            key="queryLength",
            subkey="than-selection",
            value=self.queryLengthSL.GetSelection(),
        )
        UserSettings.Set(
            group="vdigit",
            key="queryLength",
            subkey="thresh",
            value=int(self.queryLengthValue.GetValue()),
        )
        UserSettings.Set(
            group="vdigit",
            key="queryDangle",
            subkey="than-selection",
            value=self.queryDangleSL.GetSelection(),
        )
        UserSettings.Set(
            group="vdigit",
            key="queryDangle",
            subkey="thresh",
            value=int(self.queryDangleValue.GetValue()),
        )

        # select features
        for feature in ("point", "line", "centroid", "boundary"):
            UserSettings.Set(
                group="vdigit",
                key="selectType",
                subkey=[feature, "enabled"],
                value=self.FindWindowById(self.selectFeature[feature]).IsChecked(),
            )
        UserSettings.Set(
            group="vdigit",
            key="selectThresh",
            subkey="value",
            value=int(self.selectThreshValue.GetValue()),
        )
        UserSettings.Set(
            group="vdigit",
            key="checkForDupl",
            subkey="enabled",
            value=self.checkForDupl.IsChecked(),
        )
        UserSettings.Set(
            group="vdigit",
            key="selectInside",
            subkey="enabled",
            value=self.selectIn.IsChecked(),
        )

        # on-exit
        UserSettings.Set(
            group="vdigit",
            key="saveOnExit",
            subkey="enabled",
            value=self.save.IsChecked(),
        )

        # break lines
        UserSettings.Set(
            group="vdigit",
            key="breakLines",
            subkey="enabled",
            value=self.intersect.IsChecked(),
        )

        # close boundary
        UserSettings.Set(
            group="vdigit",
            key="closeBoundary",
            subkey="enabled",
            value=self.closeBoundary.IsChecked(),
        )

        self.digit.UpdateSettings()

        # redraw map if auto-rendering is enabled
        if self.parent.IsAutoRendered():
            self.parent.OnRender(None)