From a9c0350db3b0f559562da41e75e78768addc02f1 Mon Sep 17 00:00:00 2001
From: Andreas Weizel <rpinski@awzhome.de>
Date: Mon, 19 Aug 2013 01:01:44 +0200
Subject: [PATCH] "Base types" node now only shown in ClassBrowser, if there
 are indeed any base types.

---
 .../Base/Project/Dom/ClassBrowser/BaseTypesTreeNode.cs |  7 ++++---
 .../Project/Dom/ClassBrowser/TypeDefinitionTreeNode.cs | 10 +++++++++-
 2 files changed, 13 insertions(+), 4 deletions(-)

diff --git a/src/Main/Base/Project/Dom/ClassBrowser/BaseTypesTreeNode.cs b/src/Main/Base/Project/Dom/ClassBrowser/BaseTypesTreeNode.cs
index 0297c65ac6..16f060cba2 100644
--- a/src/Main/Base/Project/Dom/ClassBrowser/BaseTypesTreeNode.cs
+++ b/src/Main/Base/Project/Dom/ClassBrowser/BaseTypesTreeNode.cs
@@ -2,6 +2,7 @@
 // This code is distributed under the GNU LGPL (for details please see \doc\license.txt)
 
 using System;
+using System.Linq;
 using ICSharpCode.NRefactory.TypeSystem;
 
 namespace ICSharpCode.SharpDevelop.Dom.ClassBrowser
@@ -23,6 +24,7 @@ namespace ICSharpCode.SharpDevelop.Dom.ClassBrowser
 			this.definition.Updated += (sender, e) => UpdateBaseTypes();
 			this.text = SD.ResourceService.GetString("MainWindow.Windows.ClassBrowser.BaseTypes");
 			baseTypes = new SimpleModelCollection<ITypeDefinitionModel>();
+			UpdateBaseTypes();
 		}
 
 		protected override IModelCollection<object> ModelChildren {
@@ -31,10 +33,9 @@ namespace ICSharpCode.SharpDevelop.Dom.ClassBrowser
 			}
 		}
 		
-		protected override void LoadChildren()
+		public bool HasBaseTypes()
 		{
-			UpdateBaseTypes();
-			base.LoadChildren();
+			return baseTypes.Count > 0;
 		}
 		
 		void UpdateBaseTypes()
diff --git a/src/Main/Base/Project/Dom/ClassBrowser/TypeDefinitionTreeNode.cs b/src/Main/Base/Project/Dom/ClassBrowser/TypeDefinitionTreeNode.cs
index 4a0fcf4def..e53205281f 100644
--- a/src/Main/Base/Project/Dom/ClassBrowser/TypeDefinitionTreeNode.cs
+++ b/src/Main/Base/Project/Dom/ClassBrowser/TypeDefinitionTreeNode.cs
@@ -22,6 +22,7 @@ namespace ICSharpCode.SharpDevelop.Dom.ClassBrowser
 			if (definition == null)
 				throw new ArgumentNullException("definition");
 			this.definition = definition;
+			this.definition.Updated += (sender, e) => UpdateBaseTypesNode();
 		}
 		
 		protected override object GetModel()
@@ -57,8 +58,15 @@ namespace ICSharpCode.SharpDevelop.Dom.ClassBrowser
 		protected override void LoadChildren()
 		{
 			base.LoadChildren();
+			UpdateBaseTypesNode();
+		}
+		
+		void UpdateBaseTypesNode()
+		{
+			this.Children.RemoveAll(n => n is BaseTypesTreeNode);
 			var baseTypesTreeNode = new BaseTypesTreeNode(definition);
-			Children.Insert(0, baseTypesTreeNode);
+			if (baseTypesTreeNode.HasBaseTypes())
+				Children.Insert(0, baseTypesTreeNode);
 		}
 		
 		public override void ActivateItem(System.Windows.RoutedEventArgs e)