dialogs/PouDialog.py
author Edouard Tisserant <edouard.tisserant@gmail.com>
Thu, 07 Jul 2022 21:41:35 +0200
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permissions -rw-r--r--
tests: nore details, please
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#!/usr/bin/env python
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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) 2012: 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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from plcopen.structures import TestIdentifier, IEC_KEYWORDS
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from util.TranslationCatalogs import NoTranslate
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class PouDialog(wx.Dialog):
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    """
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    Dialog to create new POU.
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    It allows selection of POU type, name and
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    used IEC 61131-3 programming language
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    """
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    POU_TYPES = None
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    POU_TYPES_DICT = None
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    POU_LANGUAGES = None
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    POU_LANGUAGES_DICT = None
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    def __init__(self, parent, pou_type=None, type_readonly=False):
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        wx.Dialog.__init__(self, id=-1, parent=parent,
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                           name='PouDialog', title=_('Create a new POU'),
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                           style=wx.DEFAULT_DIALOG_STYLE)
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        if PouDialog.POU_TYPES_DICT is None:
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            self.InitPouTypesDict()
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            self.InitPouLanguagesDict()
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        main_sizer = wx.FlexGridSizer(cols=1, hgap=0, rows=2, vgap=10)
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        main_sizer.AddGrowableCol(0)
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        main_sizer.AddGrowableRow(0)
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        infos_sizer = wx.FlexGridSizer(cols=2, hgap=5, rows=3, vgap=15)
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        infos_sizer.AddGrowableCol(1)
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        main_sizer.Add(infos_sizer, border=20,
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                            flag=wx.GROW | wx.TOP | wx.LEFT | wx.RIGHT)
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        pouname_label = wx.StaticText(self, label=_('POU Name:'))
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        infos_sizer.Add(pouname_label, border=4,
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                              flag=wx.ALIGN_CENTER_VERTICAL | wx.TOP)
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        self.PouName = wx.TextCtrl(self)
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        infos_sizer.Add(self.PouName, flag=wx.GROW)
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        poutype_label = wx.StaticText(self, label=_('POU Type:'))
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        infos_sizer.Add(poutype_label, border=4,
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                              flag=wx.ALIGN_CENTER_VERTICAL | wx.TOP)
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        self.PouType = wx.ComboBox(self, style=wx.CB_READONLY)
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        self.Bind(wx.EVT_COMBOBOX, self.OnTypeChanged, self.PouType)
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        infos_sizer.Add(self.PouType, flag=wx.GROW)
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        language_label = wx.StaticText(self, label=_('Language:'))
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        infos_sizer.Add(language_label, border=4,
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                              flag=wx.ALIGN_CENTER_VERTICAL | wx.TOP)
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        self.Language = wx.ComboBox(self, style=wx.CB_READONLY)
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        infos_sizer.Add(self.Language, flag=wx.GROW)
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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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        for option in self.POU_TYPES:
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            if not type_readonly or _(option) == _(pou_type):
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                self.PouType.Append(_(option))
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        if pou_type is not None:
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            self.PouType.SetStringSelection(_(pou_type))
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        self.RefreshLanguage()
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        self.Fit()
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        self.PouNames = []
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        self.PouElementNames = []
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    def InitPouTypes(self):
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        """
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        Initialize POU_TYPES class list.
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        This list contains not translated POU types used in PLCopen XML.
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        _() are necessary so mk18n.py could find these string for localization.
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        """
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        _ = NoTranslate
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        self.__class__.POU_TYPES = [_("function"), _("functionBlock"), _("program")]
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    def InitPouTypesDict(self):
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        """
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        Initialize POU_TYPES_DICT class dictionary and POU_TYPE list
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        Dictionary contains localized POU types and they are shown in UI.
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        """
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        self.InitPouTypes()
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        self.__class__.POU_TYPES_DICT = dict([(_(pou_type), pou_type)
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                                              for pou_type in self.POU_TYPES])
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    def InitPouLanguages(self):
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        """
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        Initialize POU_LANGUAGES class list.
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        This list contains not translated programming languages used in PLCopen XML.
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        _() are necessary so mk18n.py could find these string for localization.
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        """
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        _ = NoTranslate
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        self.__class__.POU_LANGUAGES = [_("IL"), _("ST"), _("LD"), _("FBD"), _("SFC")]
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    def InitPouLanguagesDict(self):
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        """
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        Initialize POU_LANGUAGES_DICT class dictionary and POU_LANGUAGES list
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        Dictionary contains localized names for programming languages
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        as they are shown in UI.
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        """
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        self.InitPouLanguages()
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        self.__class__.POU_LANGUAGES_DICT = dict([(_(language), language)
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                                                  for language in self.POU_LANGUAGES])
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    def OnOK(self, event):
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        error = []
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        pou_name = self.PouName.GetValue()
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        if pou_name == "":
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            error.append(_("POU Name"))
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        if self.PouType.GetSelection() == -1:
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            error.append(_("POU Type"))
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        if self.Language.GetSelection() == -1:
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            error.append(_("Language"))
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        message = None
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        question = False
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        if len(error) > 0:
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            text = ""
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            for i, item in enumerate(error):
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                if i == 0:
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                    text += item
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                elif i == len(error) - 1:
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                    text += _(" and %s") % item
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                else:
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                    text += _(", %s") % item
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            message = _("Form isn't complete. %s must be filled!") % text
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        elif not TestIdentifier(pou_name):
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            message = _("\"%s\" is not a valid identifier!") % pou_name
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        elif pou_name.upper() in IEC_KEYWORDS:
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            message = _("\"%s\" is a keyword. It can't be used!") % pou_name
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        elif pou_name.upper() in self.PouNames:
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            message = _("\"%s\" pou already exists!") % pou_name
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        elif pou_name.upper() in self.PouElementNames:
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            message = _("A POU has an element named \"%s\". This could cause a conflict. Do you wish to continue?") % pou_name
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            question = True
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        if message is not None:
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            if question:
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                dialog = wx.MessageDialog(self, message, _("Warning"), wx.YES_NO | wx.ICON_EXCLAMATION)
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                result = dialog.ShowModal()
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                dialog.Destroy()
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                if result == wx.ID_YES:
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                    self.EndModal(wx.ID_OK)
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            else:
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                dialog = wx.MessageDialog(self, message, _("Error"), wx.OK | wx.ICON_ERROR)
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                dialog.ShowModal()
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                dialog.Destroy()
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        else:
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            self.EndModal(wx.ID_OK)
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    def RefreshLanguage(self):
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        selection = self.POU_LANGUAGES_DICT.get(self.Language.GetStringSelection(), "")
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        self.Language.Clear()
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        for language in self.POU_LANGUAGES:
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            if language != "SFC" or self.POU_TYPES_DICT[self.PouType.GetStringSelection()] != "function":
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                self.Language.Append(_(language))
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        if self.Language.FindString(_(selection)) != wx.NOT_FOUND:
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            self.Language.SetStringSelection(_(selection))
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    def OnTypeChanged(self, event):
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        self.RefreshLanguage()
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        event.Skip()
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    def SetPouNames(self, pou_names):
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        self.PouNames = [pou_name.upper() for pou_name in pou_names]
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    def SetPouElementNames(self, element_names):
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        self.PouElementNames = [element_name.upper() for element_name in element_names]
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    def SetValues(self, values):
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        for item, value in values.items():
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            if item == "pouName":
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                self.PouName.SetValue(value)
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            elif item == "pouType":
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                self.PouType.SetStringSelection(_(value))
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            elif item == "language":
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                self.Language.SetStringSelection(_(value))
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    def GetValues(self):
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        values = {}
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        values["pouName"] = self.PouName.GetValue()
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        values["pouType"] = self.POU_TYPES_DICT[self.PouType.GetStringSelection()]
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        values["language"] = self.POU_LANGUAGES_DICT[self.Language.GetStringSelection()]
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        return values