diff -r aca0c83ed82e -r 1a343b239e9c dialogs/PouTransitionDialog.py
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dialogs/PouTransitionDialog.py	Wed Jun 06 19:02:30 2012 +0200
@@ -0,0 +1,136 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+#This file is part of PLCOpenEditor, a library implementing an IEC 61131-3 editor
+#based on the plcopen standard. 
+#
+#Copyright (C) 2012: Edouard TISSERANT and Laurent BESSARD
+#
+#See COPYING file for copyrights details.
+#
+#This library is free software; you can redistribute it and/or
+#modify it under the terms of the GNU General Public
+#License as published by the Free Software Foundation; either
+#version 2.1 of the License, or (at your option) any later version.
+#
+#This library is distributed in the hope that it will be useful,
+#but WITHOUT ANY WARRANTY; without even the implied warranty of
+#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+#General Public License for more details.
+#
+#You should have received a copy of the GNU General Public
+#License along with this library; if not, write to the Free Software
+#Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+import wx
+
+from plcopen.structures import TestIdentifier, IEC_KEYWORDS
+
+def GetTransitionLanguages():
+    _ = lambda x : x
+    return [_("IL"), _("ST"), _("LD"), _("FBD")]
+TRANSITION_LANGUAGES_DICT = dict([(_(language), language) for language in GetTransitionLanguages()])
+
+class PouTransitionDialog(wx.Dialog):
+    
+    def __init__(self, parent):
+        wx.Dialog.__init__(self, id=-1, parent=parent,
+              name='PouTransitionDialog', title=_('Create a new transition'),
+              size=wx.Size(350, 200), style=wx.DEFAULT_DIALOG_STYLE)
+        self.SetClientSize(wx.Size(350, 160))
+        
+        main_sizer = wx.FlexGridSizer(cols=1, hgap=0, rows=2, vgap=10)
+        main_sizer.AddGrowableCol(0)
+        main_sizer.AddGrowableRow(0)
+        
+        infos_sizer = wx.FlexGridSizer(cols=2, hgap=5, rows=3, vgap=15)
+        infos_sizer.AddGrowableCol(1)
+        main_sizer.AddSizer(infos_sizer, 0, border=20, 
+                            flag=wx.GROW|wx.TOP|wx.LEFT|wx.RIGHT)
+        
+        transitionname_label = wx.StaticText(id=-1, parent=self, 
+              label=_('Transition Name:'), name='transitionname_label', 
+              pos=wx.Point(0, 0), size=wx.DefaultSize, style=0)
+        infos_sizer.AddWindow(transitionname_label, 0, border=4, 
+                              flag=wx.ALIGN_CENTER_VERTICAL|wx.TOP)
+
+        self.TransitionName = wx.TextCtrl(id=-1, parent=self, 
+              name='TransitionName', pos=wx.Point(0, 0),
+              size=wx.Size(0, 24), style=0)
+        infos_sizer.AddWindow(self.TransitionName, 0, border=0, flag=wx.GROW)
+
+        language_label = wx.StaticText(id=-1, parent=self, 
+              label=_('Language:'), name='language_label', 
+              pos=wx.Point(0, 0), size=wx.DefaultSize, style=0)
+        infos_sizer.AddWindow(language_label, 0, border=4, 
+                              flag=wx.ALIGN_CENTER_VERTICAL|wx.TOP)
+        
+        self.Language = wx.ComboBox(id=-1, parent=self, 
+              name='Language', pos=wx.Point(0, 0), 
+              size=wx.Size(0, 28), style=wx.CB_READONLY)
+        infos_sizer.AddWindow(self.Language, 0, border=0, flag=wx.GROW)
+        
+        self.ButtonSizer = self.CreateButtonSizer(wx.OK|wx.CANCEL|wx.CENTRE)
+        self.Bind(wx.EVT_BUTTON, self.OnOK, id=self.ButtonSizer.GetAffirmativeButton().GetId())
+        main_sizer.AddSizer(self.ButtonSizer, 0, border=20, 
+                            flag=wx.ALIGN_RIGHT|wx.BOTTOM|wx.LEFT|wx.RIGHT)
+        
+        self.SetSizer(main_sizer)
+        
+        for language in GetTransitionLanguages():
+            self.Language.Append(_(language))
+            
+        self.PouNames = []
+        self.PouElementNames = []
+        
+    def OnOK(self, event):
+        error = []
+        transition_name = self.TransitionName.GetValue()
+        if self.TransitionName.GetValue() == "":
+            error.append(_("Transition Name"))
+        if self.Language.GetSelection() == -1:
+            error.append(_("Language"))
+        message = None
+        if len(error) > 0:
+            text = ""
+            for i, item in enumerate(error):
+                if i == 0:
+                    text += item
+                elif i == len(error) - 1:
+                    text += _(" and %s")%item
+                else:
+                    text += _(", %s")%item 
+            message = _("Form isn't complete. %s must be filled!") % text
+        elif not TestIdentifier(transition_name):
+            message = _("\"%s\" is not a valid identifier!") % transition_name
+        elif transition_name.upper() in IEC_KEYWORDS:
+            message = _("\"%s\" is a keyword. It can't be used!") % transition_name
+        elif transition_name.upper() in self.PouNames:
+            message = _("A POU named \"%s\" already exists!") % transition_name
+        elif transition_name.upper() in self.PouElementNames:
+            message = _("\"%s\" element for this pou already exists!") % transition_name
+        if message is not None:
+            dialog = wx.MessageDialog(self, message, _("Error"), wx.OK|wx.ICON_ERROR)
+            dialog.ShowModal()
+            dialog.Destroy()
+        else:
+            self.EndModal(wx.ID_OK)
+    
+    def SetPouNames(self, pou_names):
+        self.PouNames = [pou_name.upper() for pou_name in pou_names]
+    
+    def SetPouElementNames(self, pou_names):
+        self.PouElementNames = [pou_name.upper() for pou_name in pou_names]
+    
+    def SetValues(self, values):
+        for item, value in values.items():
+            if item == "transitionName":
+                self.TransitionName.SetValue(value)
+            elif item == "language":
+                self.Language.SetSelection(_(value))
+                
+    def GetValues(self):
+        values = {}
+        values["transitionName"] = self.TransitionName.GetValue()
+        values["language"] = TRANSITION_LANGUAGES_DICT[self.Language.GetStringSelection()]
+        return values