--- a/controls/DebugVariablePanel/DebugVariablePanel.py	Thu Feb 14 09:44:19 2019 +0300
+++ b/controls/DebugVariablePanel/DebugVariablePanel.py	Thu Feb 14 10:02:58 2019 +0300
@@ -521,6 +521,15 @@
         self.RefreshGraphicsWindowScrollbars()
 
     def RefreshView(self):
+        """Triggers EVT_PAINT event to refresh UI"""
+        self.Refresh()
+
+    def DrawView(self):
+        """
+        Redraw elements.
+        Method is used by EVT_PAINT handler.
+        """
+
         self.RefreshCanvasPosition()
 
         if not self.Fixed or self.Force:
@@ -922,7 +931,9 @@
         pass
 
     def OnGraphicsWindowPaint(self, event):
-        self.RefreshView()
+        """EVT_PAINT handler"""
+
+        self.DrawView()
         event.Skip()
 
     def OnGraphicsWindowResize(self, event):

--- a/controls/DebugVariablePanel/DebugVariableTextViewer.py	Thu Feb 14 09:44:19 2019 +0300
+++ b/controls/DebugVariablePanel/DebugVariableTextViewer.py	Thu Feb 14 10:02:58 2019 +0300
@@ -185,8 +185,12 @@
             self.Buttons.append(GraphButton(0, 0, bitmap, callback))
 
     def RefreshViewer(self):
-        """
-        Method that refresh the content displayed by Viewer
+        """Triggers EVT_PAINT event to refresh UI"""
+        self.Refresh()
+
+    def DrawViewer(self):
+        """
+        Redraw content displayed by Viewer
         """
         # Create buffered DC for drawing in panel
         width, height = self.GetSize()
@@ -282,5 +286,5 @@
         Function called when redrawing Viewer content is needed
         @param event: wx.PaintEvent
         """
-        self.RefreshViewer()
+        self.DrawViewer()
         event.Skip()

--- a/dialogs/BlockPreviewDialog.py	Thu Feb 14 09:44:19 2019 +0300
+++ b/dialogs/BlockPreviewDialog.py	Thu Feb 14 10:02:58 2019 +0300
@@ -251,6 +251,10 @@
         self.EndModal(wx.ID_OK)
 
     def RefreshPreview(self):
+        """Triggers EVT_PAINT event to refresh UI"""
+        self.Refresh()
+
+    def DrawPreview(self):
         """
         Refresh preview panel of graphic element
         May be overridden by inherited classes
@@ -300,5 +304,5 @@
         Called when Preview panel need to be redraw
         @param event: wx.PaintEvent
         """
-        self.RefreshPreview()
+        self.DrawPreview()
         event.Skip()