--- a/dialogs/FindInPouDialog.py	Fri Aug 11 15:18:19 2017 +0300
+++ b/dialogs/FindInPouDialog.py	Mon Aug 14 19:13:01 2017 +0300
@@ -32,80 +32,80 @@
         if parent and parent.icon:
                 self.SetIcon(parent.icon)
 
-    
+
     def __init__(self, parent):
-        wx.Dialog.__init__(self, parent, title=_("Find"),         
+        wx.Dialog.__init__(self, parent, title=_("Find"),
               style=wx.CAPTION|wx.CLOSE_BOX|wx.CLIP_CHILDREN|wx.RESIZE_BORDER)
-        
+
         self._init_icon(parent)
         panel = wx.Panel(self, style=wx.TAB_TRAVERSAL)
-        
+
         main_sizer = wx.FlexGridSizer(cols=1, hgap=5, rows=2, vgap=5)
         main_sizer.AddGrowableCol(0)
         main_sizer.AddGrowableRow(0)
-        
+
         controls_sizer = wx.BoxSizer(wx.VERTICAL)
-        main_sizer.AddSizer(controls_sizer, border=20, 
+        main_sizer.AddSizer(controls_sizer, border=20,
               flag=wx.GROW|wx.TOP|wx.LEFT|wx.RIGHT)
-        
+
         patterns_sizer = wx.FlexGridSizer(cols=2, hgap=5, rows=1, vgap=5)
         patterns_sizer.AddGrowableCol(1)
         controls_sizer.AddSizer(patterns_sizer, border=5, flag=wx.GROW|wx.BOTTOM)
-        
+
         find_label = wx.StaticText(panel, label=_("Find:"))
         patterns_sizer.AddWindow(find_label, flag=wx.ALIGN_CENTER_VERTICAL)
-        
+
         self.FindPattern = wx.TextCtrl(panel)
         self.Bind(wx.EVT_TEXT, self.OnFindPatternChanged, self.FindPattern)
         self.Bind(wx.EVT_CHAR_HOOK, self.OnEscapeKey)
         patterns_sizer.AddWindow(self.FindPattern, flag=wx.GROW)
-        
+
         params_sizer = wx.BoxSizer(wx.HORIZONTAL)
         controls_sizer.AddSizer(params_sizer, border=5, flag=wx.GROW|wx.BOTTOM)
-        
+
         direction_staticbox = wx.StaticBox(panel, label=_("Direction"))
         direction_staticboxsizer = wx.StaticBoxSizer(
               direction_staticbox, wx.VERTICAL)
-        params_sizer.AddSizer(direction_staticboxsizer, 1, border=5, 
+        params_sizer.AddSizer(direction_staticboxsizer, 1, border=5,
               flag=wx.GROW|wx.RIGHT)
-        
-        self.Forward = wx.RadioButton(panel, label=_("Forward"), 
+
+        self.Forward = wx.RadioButton(panel, label=_("Forward"),
               style=wx.RB_GROUP)
-        direction_staticboxsizer.AddWindow(self.Forward, border=5, 
+        direction_staticboxsizer.AddWindow(self.Forward, border=5,
               flag=wx.ALL|wx.GROW)
-        
+
         self.Backward = wx.RadioButton(panel, label=_("Backward"))
-        direction_staticboxsizer.AddWindow(self.Backward, border=5, 
+        direction_staticboxsizer.AddWindow(self.Backward, border=5,
               flag=wx.ALL|wx.GROW)
-        
+
         options_staticbox = wx.StaticBox(panel, label=_("Options"))
         options_staticboxsizer = wx.StaticBoxSizer(
               options_staticbox, wx.VERTICAL)
         params_sizer.AddSizer(options_staticboxsizer, 1, flag=wx.GROW)
-        
+
         self.CaseSensitive = wx.CheckBox(panel, label=_("Case sensitive"))
         self.CaseSensitive.SetValue(True)
-        options_staticboxsizer.AddWindow(self.CaseSensitive, border=5, 
+        options_staticboxsizer.AddWindow(self.CaseSensitive, border=5,
               flag=wx.ALL|wx.GROW)
-        
+
         self.WrapSearch = wx.CheckBox(panel, label=_("Wrap search"))
         self.WrapSearch.SetValue(True)
-        options_staticboxsizer.AddWindow(self.WrapSearch, border=5, 
+        options_staticboxsizer.AddWindow(self.WrapSearch, border=5,
               flag=wx.LEFT|wx.RIGHT|wx.BOTTOM|wx.GROW)
-        
+
         self.RegularExpressions = wx.CheckBox(panel, label=_("Regular expressions"))
-        options_staticboxsizer.AddWindow(self.RegularExpressions, border=5, 
+        options_staticboxsizer.AddWindow(self.RegularExpressions, border=5,
               flag=wx.LEFT|wx.RIGHT|wx.BOTTOM|wx.GROW)
-        
+
         buttons_sizer = wx.BoxSizer(wx.HORIZONTAL)
-        main_sizer.AddSizer(buttons_sizer, border=20, 
+        main_sizer.AddSizer(buttons_sizer, border=20,
               flag=wx.LEFT|wx.RIGHT|wx.BOTTOM|wx.ALIGN_RIGHT)
-        
+
         self.FindButton = wx.Button(panel, label=_("Find"))
         self.FindButton.SetDefault()
         self.Bind(wx.EVT_BUTTON, self.OnFindButton, self.FindButton)
         buttons_sizer.AddWindow(self.FindButton, border=5, flag=wx.RIGHT)
-        
+
         self.CloseButton = wx.Button(panel, label=_("Close"))
         self.Bind(wx.EVT_BUTTON, self.OnCloseButton, self.CloseButton)
         buttons_sizer.AddWindow(self.CloseButton)
@@ -115,30 +115,30 @@
         self.RegExpSyntaxErrMsg = _("Syntax error in regular expression of pattern to search!")
         self.StatusLabel = wx.StaticText(panel, label= self.RegExpSyntaxErrMsg)
         controls_sizer.AddWindow(self.StatusLabel, flag=wx.ALIGN_CENTER_VERTICAL)
-        
+
         panel.SetSizer(main_sizer)
         main_sizer.Fit(self)
 
         # clear message after dialog size calculation
         self.SetStatusText("")
 
-        
+
         self.ParentWindow = parent
-        
+
         self.Bind(wx.EVT_CLOSE, self.OnCloseFrame)
         self.infosPrev = {}
         self.criteria = {}
         self.FindPattern.SetFocus()
         self.RefreshButtonsState()
-    
+
     def RefreshButtonsState(self):
         find_pattern = self.FindPattern.GetValue()
         self.FindButton.Enable(find_pattern != "")
-    
+
     def OnCloseFrame(self, event):
         self.Hide()
         event.Veto()
-        
+
     def OnCloseButton(self, event):
         self.Hide()
         event.Skip()
@@ -157,7 +157,7 @@
     def SetStatusText(self, msg):
         self.StatusLabel.SetLabel(msg)
         self.Layout()
-        
+
     def OnFindButton(self, event):
         infos = {
             "find_pattern": self.FindPattern.GetValue(),