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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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def GetActionLanguages():

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    _ = NoTranslate

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    return [_("IL"), _("ST"), _("LD"), _("FBD")]

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ACTION_LANGUAGES_DICT = dict([(_(language), language) for language in GetActionLanguages()])

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class PouActionDialog(wx.Dialog):

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    def __init__(self, parent):

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        wx.Dialog.__init__(self, parent, title=_('Create a new action'))

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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.AddSizer(infos_sizer, border=20,

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

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        actionname_label = wx.StaticText(self, label=_('Action Name:'))

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        infos_sizer.AddWindow(actionname_label, border=4,

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                              flag=wx.ALIGN_CENTER_VERTICAL | wx.TOP)

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        self.ActionName = wx.TextCtrl(self, size=wx.Size(180, -1))

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        infos_sizer.AddWindow(self.ActionName, flag=wx.GROW)

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        language_label = wx.StaticText(self, label=_('Language:'))

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        infos_sizer.AddWindow(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.AddWindow(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,

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                  button_sizer.GetAffirmativeButton())

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        main_sizer.AddSizer(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 GetActionLanguages():

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            self.Language.Append(_(option))

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        self.Fit()

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        self.PouNames = []

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        self.PouElementNames = []

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    def OnOK(self, event):

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        error = []

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        action_name = self.ActionName.GetValue()

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        if action_name == "":

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            error.append(_("Action Name"))

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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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        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(action_name):

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            message = _("\"%s\" is not a valid identifier!") % action_name

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        elif action_name.upper() in IEC_KEYWORDS:

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            message = _("\"%s\" is a keyword. It can't be used!") % action_name

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        elif action_name.upper() in self.PouNames:

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            message = _("A POU named \"%s\" already exists!") % action_name

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        elif action_name.upper() in self.PouElementNames:

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            message = _("\"%s\" element for this pou already exists!") % action_name

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        if message is not None:

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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 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 == "actionName":

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                self.ActionName.SetValue(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["actionName"] = self.ActionName.GetValue()

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        values["language"] = ACTION_LANGUAGES_DICT[self.Language.GetStringSelection()]

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        return values