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# -*- coding: utf-8 -*-

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# This file is part of Beremiz, a Integrated Development Environment for

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# programming IEC 61131-3 automates supporting plcopen standard and CanFestival.

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#

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# Copyright (C) 2007: Edouard TISSERANT and Laurent BESSARD

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# Copyright (C) 2017: Andrey Skvortsov <andrej.skvortzov@gmail.com>

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#

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# See COPYING file for copyrights details.

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#

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# This program is free software; you can redistribute it and/or

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# modify it under the terms of the GNU General Public License

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# as published by the Free Software Foundation; either version 2

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# of the License, or (at your option) any later version.

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#

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# This program is distributed in the hope that it will be useful,

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# but WITHOUT ANY WARRANTY; without even the implied warranty of

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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

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# GNU General Public License for more details.

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#

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# You should have received a copy of the GNU General Public License

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# along with this program; if not, write to the Free Software

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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

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from __future__ import absolute_import

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import wx

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import wx.grid

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import wx.lib.buttons

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from controls import CustomGrid, CustomTable

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from plcopen.BlockInstanceCollector import _ActionInfos

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from util.BitmapLibrary import GetBitmap

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from util.TranslationCatalogs import NoTranslate

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# -------------------------------------------------------------------------------

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#                                  Helpers

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# -------------------------------------------------------------------------------

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def GetActionTableColnames():

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    _ = NoTranslate

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    return [_("Qualifier"), _("Duration"), _("Type"), _("Value"), _("Indicator")]

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def GetTypeList():

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    _ = NoTranslate

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    return [_("Action"), _("Variable"), _("Inline")]

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# -------------------------------------------------------------------------------

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#                               Action Table

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# -------------------------------------------------------------------------------

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class ActionTable(CustomTable):

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    def GetValue(self, row, col):

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        if row < self.GetNumberRows():

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            colname = self.GetColLabelValue(col, False)

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            value = getattr(self.data[row], colname.lower())

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            if colname == "Type":

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                return _(value)

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            return value

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    def SetValue(self, row, col, value):

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        if col < len(self.colnames):

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            colname = self.GetColLabelValue(col, False)

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            if colname == "Type":

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                value = self.Parent.TranslateType[value]

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            elif colname == "Qualifier" and not self.Parent.DurationList[value]:

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                self.data[row].duration = ""

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            setattr(self.data[row], colname.lower(), value)

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    def _updateColAttrs(self, grid):

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        """

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        wx.Grid -> update the column attributes to add the

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        appropriate renderer given the column name.

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        Otherwise default to the default renderer.

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        """

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        for row in range(self.GetNumberRows()):

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            for col in range(self.GetNumberCols()):

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                editor = None

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                renderer = None

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                readonly = False

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                colname = self.GetColLabelValue(col, False)

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                if colname == "Qualifier":

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                    editor = wx.grid.GridCellChoiceEditor(self.Parent.QualifierList)

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                if colname == "Duration":

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                    editor = wx.grid.GridCellTextEditor()

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                    renderer = wx.grid.GridCellStringRenderer()

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                    readonly = not self.Parent.DurationList[self.data[row].qualifier]

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                elif colname == "Type":

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                    editor = wx.grid.GridCellChoiceEditor(self.Parent.TypeList)

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                elif colname == "Value":

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                    value_type = self.data[row].type

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                    if value_type == "Action":

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                        editor = wx.grid.GridCellChoiceEditor(self.Parent.ActionList)

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                    elif value_type == "Variable":

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                        editor = wx.grid.GridCellChoiceEditor(self.Parent.VariableList)

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                    elif value_type == "Inline":

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                        editor = wx.grid.GridCellTextEditor()

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                        renderer = wx.grid.GridCellStringRenderer()

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                elif colname == "Indicator":

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                    editor = wx.grid.GridCellChoiceEditor(self.Parent.VariableList)

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                grid.SetCellEditor(row, col, editor)

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                grid.SetCellRenderer(row, col, renderer)

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                grid.SetReadOnly(row, col, readonly)

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                grid.SetCellBackgroundColour(row, col, wx.WHITE)

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            self.ResizeRow(grid, row)

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# -------------------------------------------------------------------------------

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#                            Action Block Dialog

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# -------------------------------------------------------------------------------

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class ActionBlockDialog(wx.Dialog):

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    def __init__(self, parent):

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        wx.Dialog.__init__(self, parent, title=_('Edit action block properties'))

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        main_sizer = wx.FlexGridSizer(cols=1, hgap=0, rows=3, vgap=10)

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        main_sizer.AddGrowableCol(0)

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        main_sizer.AddGrowableRow(1)

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        top_sizer = wx.FlexGridSizer(cols=5, hgap=5, rows=1, vgap=0)

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        top_sizer.AddGrowableCol(0)

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        top_sizer.AddGrowableRow(0)

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        main_sizer.Add(top_sizer, border=20,

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                            flag=wx.GROW | wx.TOP | wx.LEFT | wx.RIGHT)

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        actions_label = wx.StaticText(self, label=_('Actions:'))

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        top_sizer.Add(actions_label, flag=wx.ALIGN_BOTTOM)

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        for name, bitmap, help in [

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                ("AddButton", "add_element", _("Add action")),

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                ("DeleteButton", "remove_element", _("Remove action")),

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                ("UpButton", "up", _("Move action up")),

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                ("DownButton", "down", _("Move action down"))]:

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            button = wx.lib.buttons.GenBitmapButton(

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                self, bitmap=GetBitmap(bitmap),

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                size=wx.Size(28, 28), style=wx.NO_BORDER)

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            button.SetToolTip(help)

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            setattr(self, name, button)

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            top_sizer.Add(button)

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        self.ActionsGrid = CustomGrid(self, size=wx.Size(-1, 250), style=wx.VSCROLL)

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        self.ActionsGrid.DisableDragGridSize()

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        self.ActionsGrid.EnableScrolling(False, True)

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        self.ActionsGrid.Bind(wx.grid.EVT_GRID_CELL_CHANGING,

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                              self.OnActionsGridCellChange)

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        main_sizer.Add(self.ActionsGrid, border=20,

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                            flag=wx.GROW | wx.LEFT | wx.RIGHT)

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        button_sizer = self.CreateButtonSizer(wx.OK | wx.CANCEL | wx.CENTRE)

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        self.Bind(wx.EVT_BUTTON, self.OnOK, id=self.GetAffirmativeId())

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        main_sizer.Add(button_sizer, border=20,

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                            flag=wx.ALIGN_RIGHT | wx.BOTTOM | wx.LEFT | wx.RIGHT)

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        self.SetSizer(main_sizer)

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        self.Table = ActionTable(self, [], GetActionTableColnames())

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        typelist = GetTypeList()

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        self.TypeList = ",".join(map(_, typelist))

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        self.TranslateType = dict([(_(value), value) for value in typelist])

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        self.ColSizes = [60, 90, 130, 200, 50]

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        self.ColAlignements = [wx.ALIGN_LEFT, wx.ALIGN_LEFT, wx.ALIGN_LEFT, wx.ALIGN_LEFT, wx.ALIGN_LEFT]

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        self.ActionsGrid.SetTable(self.Table)

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        self.ActionsGrid.SetDefaultValue(_ActionInfos("N", "Action", "", "", ""))

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        self.ActionsGrid.SetButtons({"Add": self.AddButton,

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                                     "Delete": self.DeleteButton,

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                                     "Up": self.UpButton,

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                                     "Down": self.DownButton})

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        self.ActionsGrid.SetRowLabelSize(0)

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        for col in range(self.Table.GetNumberCols()):

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            attr = wx.grid.GridCellAttr()

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            attr.SetAlignment(self.ColAlignements[col], wx.ALIGN_CENTRE)

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            self.ActionsGrid.SetColAttr(col, attr)

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            self.ActionsGrid.SetColMinimalWidth(col, self.ColSizes[col])

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            self.ActionsGrid.AutoSizeColumn(col, False)

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        self.Table.ResetView(self.ActionsGrid)

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        self.ActionsGrid.SetFocus()

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        self.ActionsGrid.RefreshButtons()

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        self.Fit()

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    def OnOK(self, event):

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        self.ActionsGrid.CloseEditControl()

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        self.EndModal(wx.ID_OK)

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    def OnActionsGridCellChange(self, event):

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        wx.CallAfter(self.Table.ResetView, self.ActionsGrid)

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        event.Skip()

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    def SetQualifierList(self, list):

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        self.QualifierList = ",".join(list)

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        self.DurationList = list

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    def SetVariableList(self, list):

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        self.VariableList = "," + ",".join([variable.Name for variable in list])

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    def SetActionList(self, list):

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        self.ActionList = "," + ",".join(list)

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    def SetValues(self, actions):

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        for action in actions:

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            row = action.copy()

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            if row.type == "reference" and row.value in self.ActionList:

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                row.type = "Action"

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            elif row.type == "reference" and row.value in self.VariableList:

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                row.type = "Variable"

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            else:

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                row.type = "Inline"

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            self.Table.AppendRow(row)

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        self.Table.ResetView(self.ActionsGrid)

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        if len(actions) > 0:

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            self.ActionsGrid.SetGridCursor(0, 0)

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        self.ActionsGrid.RefreshButtons()

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    def GetValues(self):

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        actions = self.Table.GetData()

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        for action in actions:

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            if action.type in ["Action", "Variable"]:

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                action.type = "reference"

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            else:

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                action.type = "inline"

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        return actions