--- a/Beremiz.py	Thu Apr 04 11:13:28 2013 +0900
+++ b/Beremiz.py	Fri Apr 05 00:56:54 2013 +0200
@@ -254,7 +254,9 @@
                 if style is None : style=self.black_white
                 if style != self.black_white:
                     self.output.StartStyling(self.output.GetLength(), 0xff)
+                self.output.SetReadOnly(False)
                 self.output.AddText(s)
+                self.output.SetReadOnly(True)
                 if style != self.black_white:
                     self.output.SetStyling(len(s), style)
             self.stack = []
@@ -400,6 +402,10 @@
         self.LogConsole = wx.stc.StyledTextCtrl(id=ID_BEREMIZLOGCONSOLE,
                   name='LogConsole', parent=self.BottomNoteBook, pos=wx.Point(0, 0),
                   size=wx.Size(0, 0))
+        self.LogConsole.Bind(wx.EVT_SET_FOCUS, self.OnLogConsoleFocusChanged)
+        self.LogConsole.Bind(wx.EVT_KILL_FOCUS, self.OnLogConsoleFocusChanged)
+        self.LogConsole.Bind(wx.stc.EVT_STC_UPDATEUI, self.OnLogConsoleUpdateUI)
+        self.LogConsole.SetReadOnly(True)
         self.LogConsole.SetWrapMode(wx.stc.STC_WRAP_CHAR)
         
         # Define Log Console styles
@@ -560,6 +566,15 @@
             wnd = self
         InspectionTool().Show(wnd, True)
 
+    def OnLogConsoleFocusChanged(self, event):
+        if self:
+            self.RefreshEditMenu()
+        event.Skip()
+
+    def OnLogConsoleUpdateUI(self, event):
+        self.SetCopyBuffer(self.LogConsole.GetSelectedText(), True)
+        event.Skip()
+
     def OnLogConsoleMarginClick(self, event):
         line_idx = self.LogConsole.LineFromPosition(event.GetPosition())
         wx.CallAfter(self.SearchLineForError, self.LogConsole.GetLine(line_idx))
@@ -762,6 +777,9 @@
     
     def RefreshEditMenu(self):
         IDEFrame.RefreshEditMenu(self)
+        if self.FindFocus() == self.LogConsole:
+            self.EditMenu.Enable(wx.ID_COPY, True)
+            self.Panes["MenuToolBar"].EnableTool(wx.ID_COPY, True)
         
         if self.CTR is not None:
             selected = self.TabsOpened.GetSelection()

--- a/IDEFrame.py	Thu Apr 04 11:13:28 2013 +0900
+++ b/IDEFrame.py	Fri Apr 05 00:56:54 2013 +0200
@@ -717,7 +717,7 @@
     def SelectTab(self, tab):
         for notebook in [self.LeftNoteBook, self.BottomNoteBook, self.RightNoteBook]:
             idx = notebook.GetPageIndex(tab)
-            if idx != wx.NOT_FOUND:
+            if idx != wx.NOT_FOUND and idx != notebook.GetSelection():
                 notebook.SetSelection(idx)
                 return
 
@@ -879,8 +879,13 @@
                 event.Veto()
         
 
-    def GetCopyBuffer(self):
+    def GetCopyBuffer(self, primary_selection=False):
         data = None
+        if primary_selection:
+            if wx.Platform != '__WXMSW__':
+                wx.TheClipboard.UsePrimarySelection(primary_selection)
+            else:
+                return data
         if wx.TheClipboard.Open():
             dataobj = wx.TextDataObject()
             if wx.TheClipboard.GetData(dataobj):
@@ -888,7 +893,12 @@
             wx.TheClipboard.Close()
         return data
         
-    def SetCopyBuffer(self, text):
+    def SetCopyBuffer(self, text, primary_selection=False):
+        if primary_selection:
+            if wx.Platform != '__WXMSW__':
+                wx.TheClipboard.UsePrimarySelection(primary_selection)
+            else:
+                return
         if wx.TheClipboard.Open():
             data = wx.TextDataObject()
             data.SetText(text)

--- a/controls/VariablePanel.py	Thu Apr 04 11:13:28 2013 +0900
+++ b/controls/VariablePanel.py	Fri Apr 05 00:56:54 2013 +0200
@@ -667,8 +667,7 @@
                     self.Controler.UpdateEditedElementUsedVariable(self.TagName, old_value, value)
                 self.Controler.BufferProject()
                 wx.CallAfter(self.ParentWindow.RefreshView, False)
-                self.ParentWindow._Refresh(TITLE, FILEMENU, EDITMENU, PAGETITLES, POUINSTANCEVARIABLESPANEL, LIBRARYTREE)
-                event.Skip()
+                self.ParentWindow._Refresh(TITLE, FILEMENU, EDITMENU, PAGETITLES, POUINSTANCEVARIABLESPANEL, LIBRARYTREE)
         else:
             self.SaveValues()
             if colname == "Class":

--- a/xmlclass/xmlclass.py	Thu Apr 04 11:13:28 2013 +0900
+++ b/xmlclass/xmlclass.py	Fri Apr 05 00:56:54 2013 +0200
@@ -1669,6 +1669,8 @@
                     raise ValueError("Wrong path!")
                 if attributes[parts[0]]["attr_type"]["basename"] == "boolean":
                     setattr(self, parts[0], value)
+                elif attributes[parts[0]]["use"] == "optional" and value == "":
+                    setattr(self, parts[0], None)
                 else:
                     setattr(self, parts[0], attributes[parts[0]]["attr_type"]["extract"](value, False))
             elif elements.has_key(parts[0]):
@@ -1677,6 +1679,8 @@
                         raise ValueError("Wrong path!")
                     if elements[parts[0]]["elmt_type"]["basename"] == "boolean":
                         setattr(self, parts[0], value)
+                    elif attributes[parts[0]]["minOccurs"] == 0 and value == "":
+                        setattr(self, parts[0], None)
                     else:
                         setattr(self, parts[0], elements[parts[0]]["elmt_type"]["extract"](value, False))
                 else: