private void CodeToolWindow_MouseMove(object sender, MouseEventArgs e)
        {
            if (!mouse_is_down || !PluginOptions.MiniCodeColumnEnabled || shutting_down)
            {
                return;
            }

            TextView textView = CodeRush.TextViews.Active;

            if (textView != null)
            {
                int line        = e.Y * last_height_divisor;
                int center_line = line;
                if (center_line > 10)
                {
                    center_line -= 10;
                }

                textView.MakeVisible(line, 0);
                textView.CenterLine(center_line);
                Invalidate();
            }
        }