diff -r d51af006fa6b -r 64d8f52bc8c8 controls/CustomToolTip.py
--- a/controls/CustomToolTip.py	Fri Aug 11 15:18:19 2017 +0300
+++ b/controls/CustomToolTip.py	Mon Aug 14 19:13:01 2017 +0300
@@ -39,32 +39,32 @@
 """
 
 class CustomToolTip(wx.PopupWindow):
-    
+
     def __init__(self, parent, tip, restricted=True):
         """
         Constructor
         @param parent: Parent window
         @param tip: Tip text (may be multiline)
-        @param restricted: Tool tip must follow size restriction in line and 
+        @param restricted: Tool tip must follow size restriction in line and
             characters number defined (default True)
         """
         wx.PopupWindow.__init__(self, parent)
-        
+
         self.Restricted = restricted
-        
+
         self.SetBackgroundStyle(wx.BG_STYLE_CUSTOM)
         self.SetTip(tip)
-        
+
         # Initialize text font style
         self.Font = wx.Font(
-            faces["size"], 
-            wx.SWISS, 
-            wx.NORMAL, 
-            wx.NORMAL, 
+            faces["size"],
+            wx.SWISS,
+            wx.NORMAL,
+            wx.NORMAL,
             faceName = faces["mono"])
-        
+
         self.Bind(wx.EVT_PAINT, self.OnPaint)
-    
+
     def SetFont(self, font):
         """
         Set tool tip text font style
@@ -72,7 +72,7 @@
         """
         self.Font = font
         self.RefreshTip()
-    
+
     def SetTip(self, tip):
         """
         Set tool tip text
@@ -97,11 +97,11 @@
                     self.Tip.append(new_line)
                 else:
                     self.Tip.append(line)
-            
+
             # Restrict number of lines
             if len(self.Tip) > TOOLTIP_MAX_LINE:
                 self.Tip = self.Tip[:TOOLTIP_MAX_LINE]
-                
+
                 # Add ... to the end of last line to indicate that tool tip
                 # text is too long
                 if len(self.Tip[-1]) < TOOLTIP_MAX_CHARACTERS - 3:
@@ -111,10 +111,10 @@
                         [:TOOLTIP_MAX_CHARACTERS - 3] + "..."
         else:
             self.Tip = tip.splitlines()
-        
+
         # Prevent to call wx method in non-wx threads
         wx.CallAfter(self.RefreshTip)
-    
+
     def SetToolTipPosition(self, pos):
         """
         Set tool tip position
@@ -122,32 +122,32 @@
         """
         # Get screen size to prevent tool tip to go out of the screen
         screen_width, screen_height = wx.GetDisplaySize()
-        
+
         # Calculate position of tool tip to stay in screen limits
         tip_width, tip_height = self.GetToolTipSize()
         self.SetPosition(wx.Point(
             max(0, min(pos.x, screen_width - tip_width)),
             max(0, min(pos.y, screen_height - tip_height))))
-    
+
     def GetToolTipSize(self):
         """
         Get tool tip size according to tip text and restriction
         @return: wx.Size(tool_tip_width, tool_tip_height)
         """
         max_width = max_height = 0
-        
+
         # Create a memory DC for calculating text extent
         dc = wx.MemoryDC()
         dc.SetFont(self.Font)
-        
+
         # Compute max tip text size
         for line in self.Tip:
             w, h = dc.GetTextExtent(line)
             max_width = max(max_width, w)
             max_height += h
-        
+
         return wx.Size(max_width + 4, max_height + 4)
-    
+
     def RefreshTip(self):
         """
         Refresh tip on screen
@@ -156,10 +156,10 @@
         if self:
             # Refresh tool tip size and position
             self.SetClientSize(self.GetToolTipSize())
-            
+
             # Redraw tool tip
             self.Refresh()
-    
+
     def OnPaint(self, event):
         """
         Callback for Paint Event
@@ -168,26 +168,26 @@
         # Get buffered paint DC for tool tip
         dc = wx.AutoBufferedPaintDC(self)
         dc.Clear()
-        
+
         # Set DC drawing style
         dc.SetPen(wx.BLACK_PEN)
         dc.SetBrush(wx.Brush(wx.Colour(255, 238, 170)))
         dc.SetFont(self.Font)
-        
+
         # Draw Tool tip
         dc.BeginDrawing()
         tip_width, tip_height = self.GetToolTipSize()
-        
+
         # Draw background rectangle
         dc.DrawRectangle(0, 0, tip_width, tip_height)
-        
+
         # Draw tool tip text
         line_offset = 0
         for line in self.Tip:
             dc.DrawText(line, 2, line_offset + 2)
             line_width, line_height = dc.GetTextExtent(line)
             line_offset += line_height
-        
+
         dc.EndDrawing()
-        
+
         event.Skip()