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

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#This file is part of PLCOpenEditor, a library implementing an IEC 61131-3 editor

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#based on the plcopen standard. 

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#

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

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#

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#See COPYING file for copyrights details.

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#

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

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#modify it under the terms of the GNU General Public

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#License as published by the Free Software Foundation; either

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#version 2.1 of the License, or (at your option) any later version.

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#

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#This library 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 GNU

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#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

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

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#Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

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import wx

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

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#                                POU Name Dialog

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

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class PouNameDialog(wx.TextEntryDialog):

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    def __init__(self, parent, message, caption = "Please enter text", defaultValue = "", 

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                       style = wx.OK|wx.CANCEL|wx.CENTRE, pos = wx.DefaultPosition):

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        wx.TextEntryDialog.__init__(self, parent, message, caption, defaultValue, style, pos)

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        self.PouNames = []

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        self.Bind(wx.EVT_BUTTON, self.OnOK, 

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              self.GetSizer().GetItem(2).GetSizer().GetItem(1).GetSizer().GetAffirmativeButton())

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    def OnOK(self, event):

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        message = None

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        step_name = self.GetSizer().GetItem(1).GetWindow().GetValue()

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        if step_name == "":

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            message = _("You must type a name!")

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        elif not TestIdentifier(step_name):

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

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        elif step_name.upper() in IEC_KEYWORDS:

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

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        elif step_name.upper() in self.PouNames:

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