dialogs/PouTransitionDialog.py
author Andrey Skvortsov <andrej.skvortzov@gmail.com>
Mon, 19 Jun 2017 19:23:31 +0300
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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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import wx
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from plcopen.structures import TestIdentifier, IEC_KEYWORDS
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#-------------------------------------------------------------------------------
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#                                POU Transition Dialog
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#-------------------------------------------------------------------------------
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def GetTransitionLanguages():
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    _ = lambda x : x
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    return [_("IL"), _("ST"), _("LD"), _("FBD")]
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TRANSITION_LANGUAGES_DICT = dict([(_(language), language) for language in GetTransitionLanguages()])
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class PouTransitionDialog(wx.Dialog):
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    def __init__(self, parent):
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        wx.Dialog.__init__(self, parent, title=_('Create a new transition'))
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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=10)
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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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        transitionname_label = wx.StaticText(self, label=_('Transition Name:'))
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        infos_sizer.AddWindow(transitionname_label, border=4, 
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              flag=wx.ALIGN_CENTER_VERTICAL|wx.TOP)
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        self.TransitionName = wx.TextCtrl(self, size=wx.Size(180,-1))
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        infos_sizer.AddWindow(self.TransitionName, 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, button_sizer.GetAffirmativeButton())
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        main_sizer.AddSizer(button_sizer, border=20, flag=wx.ALIGN_RIGHT|wx.BOTTOM)
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        self.SetSizer(main_sizer)
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        for language in GetTransitionLanguages():
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            self.Language.Append(_(language))
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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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        transition_name = self.TransitionName.GetValue()
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        if self.TransitionName.GetValue() == "":
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            error.append(_("Transition 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(transition_name):
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            message = _("\"%s\" is not a valid identifier!") % transition_name
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        elif transition_name.upper() in IEC_KEYWORDS:
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            message = _("\"%s\" is a keyword. It can't be used!") % transition_name
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        elif transition_name.upper() in self.PouNames:
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            message = _("A POU named \"%s\" already exists!") % transition_name
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        elif transition_name.upper() in self.PouElementNames:
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            message = _("\"%s\" element for this pou already exists!") % transition_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, pou_names):
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        self.PouElementNames = [pou_name.upper() for pou_name in pou_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 == "transitionName":
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                self.TransitionName.SetValue(value)
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            elif item == "language":
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                self.Language.SetSelection(_(value))
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    def GetValues(self):
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        values = {}
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        values["transitionName"] = self.TransitionName.GetValue()
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        values["language"] = TRANSITION_LANGUAGES_DICT[self.Language.GetStringSelection()]
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        return values