Major UI rework!

src/WPF/MenuHelp.cs

@@ -0,0 +1,56 @@
+
+using System;
+using System.Linq;
+using System.Windows.Controls;
+
+namespace mpvnet
+{
+    public class MenuHelp
+    {
+        public static MenuItem Add(ItemCollection items, string path)
+        {
+            string[] a = path.Split(new[] { " > ", " | " }, StringSplitOptions.RemoveEmptyEntries);
+            ItemCollection itemCollection = items;
+
+            for (int x = 0; x < a.Length; x++)
+            {
+                bool found = false;
+
+                foreach (MenuItem i in itemCollection.OfType<MenuItem>())
+                {
+                    if (x < a.Length - 1)
+                    {
+                        if ((string)i.Header == a[x])
+                        {
+                            found = true;
+                            itemCollection = i.Items;
+                        }
+                    }
+                }
+
+                if (!found)
+                {
+                    if (x == a.Length - 1)
+                    {
+                        if (a[x] == "-")
+                            itemCollection.Add(new Separator());
+                        else
+                        {
+                            MenuItem item = new MenuItem() { Header = a[x] };
+                            itemCollection.Add(item);
+                            itemCollection = item.Items;
+                            return item;
+                        }
+                    }
+                    else
+                    {
+                        MenuItem item = new MenuItem() { Header = a[x] };
+                        itemCollection.Add(item);
+                        itemCollection = item.Items;
+                    }
+                }
+            }
+            return null;
+        }
+    }
+}