add more methods to file system interface

MediaBrowser.Server.Implementations/Drawing/UnplayedCountIndicator.cs

@@ -0,0 +1,55 @@
+using System;
+using System.Collections.Generic;
+using System.Drawing;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MediaBrowser.Server.Implementations.Drawing
+{
+    public class UnplayedCountIndicator
+    {
+        private const int IndicatorHeight = 50;
+        public const int IndicatorWidth = 50;
+        private const int OffsetFromTopRightCorner = 10;
+
+        public void DrawUnplayedCountIndicator(Graphics graphics, Size imageSize, int count)
+        {
+            var x = imageSize.Width - IndicatorWidth - OffsetFromTopRightCorner;
+
+            using (var backdroundBrush = new SolidBrush(Color.FromArgb(225, 82, 181, 75)))
+            {
+                graphics.FillEllipse(backdroundBrush, x, OffsetFromTopRightCorner, IndicatorWidth, IndicatorHeight);
+
+                var text = count.ToString();
+
+                x = imageSize.Width - 50 - OffsetFromTopRightCorner;
+                var y = OffsetFromTopRightCorner + 7;
+                var fontSize = 30;
+
+                if (text.Length == 1)
+                {
+                    x += 11;
+                }
+                else if (text.Length == 2)
+                {
+                    x += 3;
+                }
+                else if (text.Length == 3)
+                {
+                    //x += 1;
+                    y += 3;
+                    fontSize = 24;
+                }
+
+                using (var font = new Font("Sans-Serif", fontSize, FontStyle.Regular, GraphicsUnit.Pixel))
+                {
+                    using (var fontBrush = new SolidBrush(Color.White))
+                    {
+                        graphics.DrawString(text, font, fontBrush, x, y);
+                    }
+                }
+            }
+        }
+    }
+}