Add references folder.

ILSpy.sln

@@ -8,6 +8,8 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ICSharpCode.TreeView", "Sha
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Mono.Cecil", "Mono.Cecil\Mono.Cecil.csproj", "{D68133BD-1E63-496E-9EDE-4FBDBF77B486}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ICSharpCode.AvalonEdit", "AvalonEdit\ICSharpCode.AvalonEdit\ICSharpCode.AvalonEdit.csproj", "{6C55B776-26D4-4DB3-A6AB-87E783B2F3D1}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|x86 = Debug|x86
@@ -36,5 +38,13 @@ Global
 		{D68133BD-1E63-496E-9EDE-4FBDBF77B486}.Release|x86.ActiveCfg = net_4_0_Release|Any CPU
 		{D68133BD-1E63-496E-9EDE-4FBDBF77B486}.Release|Any CPU.Build.0 = net_2_0_Debug|Any CPU
 		{D68133BD-1E63-496E-9EDE-4FBDBF77B486}.Release|Any CPU.ActiveCfg = net_2_0_Debug|Any CPU
+		{6C55B776-26D4-4DB3-A6AB-87E783B2F3D1}.Debug|x86.Build.0 = Debug|Any CPU
+		{6C55B776-26D4-4DB3-A6AB-87E783B2F3D1}.Debug|x86.ActiveCfg = Debug|Any CPU
+		{6C55B776-26D4-4DB3-A6AB-87E783B2F3D1}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{6C55B776-26D4-4DB3-A6AB-87E783B2F3D1}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{6C55B776-26D4-4DB3-A6AB-87E783B2F3D1}.Release|x86.Build.0 = Release|Any CPU
+		{6C55B776-26D4-4DB3-A6AB-87E783B2F3D1}.Release|x86.ActiveCfg = Release|Any CPU
+		{6C55B776-26D4-4DB3-A6AB-87E783B2F3D1}.Release|Any CPU.Build.0 = Release|Any CPU
+		{6C55B776-26D4-4DB3-A6AB-87E783B2F3D1}.Release|Any CPU.ActiveCfg = Release|Any CPU
 	EndGlobalSection
 EndGlobal

ILSpy/AssemblyReferenceTreeNode.cs

@@ -0,0 +1,34 @@
+// Copyright (c) AlphaSierraPapa for the SharpDevelop Team (for details please see \doc\copyright.txt)
+// This code is distributed under MIT X11 license (for details please see \doc\license.txt)
+
+using System;
+using ICSharpCode.TreeView;
+using Mono.Cecil;
+
+namespace ICSharpCode.ILSpy
+{
+	/// <summary>
+	/// Node within assembly reference list.
+	/// </summary>
+	public class AssemblyReferenceTreeNode : SharpTreeNode
+	{
+		readonly AssemblyNameReference r;
+		
+		public AssemblyReferenceTreeNode(AssemblyNameReference r)
+		{
+			if (r == null)
+				throw new ArgumentNullException("r");
+			this.r = r;
+		}
+		
+		public override object Text {
+			get { return r.Name; }
+		}
+		
+		public override object Icon {
+			get { return Images.Assembly; }
+		}
+		
+		// TODO: allow drilling down into references used by this reference
+	}
+}

ILSpy/AssemblyTreeNode.cs

@@ -54,7 +54,7 @@ namespace ICSharpCode.ILSpy
 		protected override void LoadChildren()
 		{
 			assemblyTask.Wait();
-			
+			this.Children.Add(new ReferenceFolderTreeNode(assemblyTask.Result.MainModule));
 			foreach (NamespaceTreeNode ns in namespaces.Values) {
 				ns.Children.Clear();
 			}

ILSpy/ILSpy.csproj

@@ -65,10 +65,12 @@
       <DependentUpon>App.xaml</DependentUpon>
     </Compile>
     <Compile Include="AssemblyListTreeNode.cs" />
+    <Compile Include="AssemblyReferenceTreeNode.cs" />
     <Compile Include="AssemblyTreeNode.cs" />
     <Compile Include="FieldTreeNode.cs" />
     <Compile Include="Images\Images.cs" />
     <Compile Include="MethodTreeNode.cs" />
+    <Compile Include="ModuleReferenceTreeNode.cs" />
     <Compile Include="Mono.Cecil.Rocks\MethodBodyRocks.cs" />
     <Compile Include="NamespaceTreeNode.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
@@ -77,6 +79,7 @@
       <SubType>Code</SubType>
       <DependentUpon>MainWindow.xaml</DependentUpon>
     </Compile>
+    <Compile Include="ReferenceFolderTreeNode.cs" />
     <Compile Include="TreeTraversal.cs" />
     <Compile Include="TypeTreeNode.cs" />
   </ItemGroup>
@@ -126,10 +129,18 @@
       <Project>{D68133BD-1E63-496E-9EDE-4FBDBF77B486}</Project>
       <Name>Mono.Cecil</Name>
     </ProjectReference>
+    <ProjectReference Include="..\AvalonEdit\ICSharpCode.AvalonEdit\ICSharpCode.AvalonEdit.csproj">
+      <Project>{6C55B776-26D4-4DB3-A6AB-87E783B2F3D1}</Project>
+      <Name>ICSharpCode.AvalonEdit</Name>
+    </ProjectReference>
     <ProjectReference Include="..\SharpTreeView\ICSharpCode.TreeView.csproj">
       <Project>{DDE2A481-8271-4EAC-A330-8FA6A38D13D1}</Project>
       <Name>ICSharpCode.TreeView</Name>
     </ProjectReference>
   </ItemGroup>
+  <ItemGroup>
+    <Resource Include="Images\ReferenceFolder.Closed.png" />
+    <Resource Include="Images\ReferenceFolder.Open.png" />
+  </ItemGroup>
   <Import Project="$(MSBuildBinPath)\Microsoft.CSharp.Targets" />
 </Project>

ILSpy/Images/Images.cs

@@ -18,6 +18,9 @@ namespace ICSharpCode.ILSpy
 		public static readonly BitmapImage Assembly = LoadBitmap("Assembly");
 		public static readonly BitmapImage Namespace = LoadBitmap("NameSpace");
 		
+		public static readonly BitmapImage ReferenceFolderOpen = LoadBitmap("ReferenceFolder.Open");
+		public static readonly BitmapImage ReferenceFolderClosed = LoadBitmap("ReferenceFolder.Closed");
+		
 		
 		public static readonly BitmapImage Class = LoadBitmap("Class");
 		public static readonly BitmapImage Delegate = LoadBitmap("Delegate");

ILSpy/MainWindow.xaml

@@ -1,7 +1,6 @@
-<Window x:Class="ICSharpCode.ILSpy.MainWindow"
-	xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
-	xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
-	xmlns:tv="http://icsharpcode.net/sharpdevelop/treeview"
+<?xml version="1.0" encoding="utf-8"?>
+<Window
+	x:Class="ICSharpCode.ILSpy.MainWindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:tv="http://icsharpcode.net/sharpdevelop/treeview" xmlns:ae="http://icsharpcode.net/sharpdevelop/avalonedit"
 	Title="ILSpy"
 	Width="790"
 	Height="500"
@@ -11,6 +10,45 @@
 	Hyperlink.RequestNavigate="Window_RequestNavigate"
 	TextOptions.TextFormattingMode="Display"
 >
-	<tv:SharpTreeView Name="treeView" ShowRoot="False" AllowDropOrder="True" AllowDrop="True">
-	</tv:SharpTreeView>
+	<!-- Main grid separating left pane (treeView) from main pane (textEditor) -->
+	<Grid>
+		<Grid.ColumnDefinitions>
+			<ColumnDefinition
+				MinWidth="100"
+				Width="250" />
+			<ColumnDefinition
+				Width="3" />
+			<ColumnDefinition
+				MinWidth="100"
+				Width="0.514411764705882*" />
+		</Grid.ColumnDefinitions>
+		<Grid.RowDefinitions>
+			<RowDefinition
+				Height="*" />
+		</Grid.RowDefinitions>
+		<!-- Tree View of assemblies and classes -->
+		<tv:SharpTreeView
+			Name="treeView"
+			ShowRoot="False"
+			AllowDropOrder="True"
+			AllowDrop="True" />
+		<GridSplitter
+			Grid.ZIndex="1"
+			Grid.Column="1"
+			Margin="-2,0"
+			BorderThickness="2,0"
+			BorderBrush="Transparent"
+			HorizontalAlignment="Stretch" />
+		<!-- DockPanel in right pane -->
+		<DockPanel
+			Grid.Column="2">
+			<ae:TextEditor
+				SyntaxHighlighting="C#"
+				FontFamily="Consolas"
+				FontSize="10pt"
+				IsReadOnly="True"
+				Background="{DynamicResource {x:Static SystemColors.InfoBrushKey}}"
+				Foreground="{DynamicResource {x:Static SystemColors.InfoTextBrushKey}}" />
+		</DockPanel>
+	</Grid>
 </Window>

ILSpy/MainWindow.xaml.cs

@@ -28,7 +28,6 @@ namespace ICSharpCode.ILSpy
 			typeof(System.Windows.FrameworkElement).Assembly,
 			typeof(ICSharpCode.TreeView.SharpTreeView).Assembly,
 			typeof(Mono.Cecil.AssemblyDefinition).Assembly,
-			typeof(ICSharpCode.NRefactory.SupportedLanguage).Assembly,
 			typeof(MainWindow).Assembly
 		};
 		

ILSpy/ModuleReferenceTreeNode.cs

@@ -0,0 +1,28 @@
+// Copyright (c) AlphaSierraPapa for the SharpDevelop Team (for details please see \doc\copyright.txt)
+// This code is distributed under MIT X11 license (for details please see \doc\license.txt)
+
+using System;
+using ICSharpCode.TreeView;
+using Mono.Cecil;
+
+namespace ICSharpCode.ILSpy
+{
+	/// <summary>
+	/// Module reference in ReferenceFolderTreeNode.
+	/// </summary>
+	public class ModuleReferenceTreeNode : SharpTreeNode
+	{
+		ModuleReference r;
+		
+		public ModuleReferenceTreeNode(ModuleReference r)
+		{
+			if (r == null)
+				throw new ArgumentNullException("r");
+			this.r = r;
+		}
+		
+		public override object Text {
+			get { return r.Name; }
+		}
+	}
+}

ILSpy/ReferenceFolderTreeNode.cs

@@ -0,0 +1,43 @@
+// Copyright (c) AlphaSierraPapa for the SharpDevelop Team (for details please see \doc\copyright.txt)
+// This code is distributed under MIT X11 license (for details please see \doc\license.txt)
+
+using System;
+using ICSharpCode.TreeView;
+using Mono.Cecil;
+
+namespace ICSharpCode.ILSpy
+{
+	/// <summary>
+	/// References folder.
+	/// </summary>
+	public sealed class ReferenceFolderTreeNode : SharpTreeNode
+	{
+		ModuleDefinition module;
+		
+		public ReferenceFolderTreeNode(ModuleDefinition module)
+		{
+			this.module = module;
+			this.LazyLoading = true;
+		}
+		
+		public override object Text {
+			get { return "References"; }
+		}
+		
+		public override object Icon {
+			get { return Images.ReferenceFolderClosed; }
+		}
+		
+		public override object ExpandedIcon {
+			get { return Images.ReferenceFolderOpen; }
+		}
+		
+		protected override void LoadChildren()
+		{
+			foreach (var r in module.AssemblyReferences)
+				this.Children.Add(new AssemblyReferenceTreeNode(r));
+			foreach (var r in module.ModuleReferences)
+				this.Children.Add(new ModuleReferenceTreeNode(r));
+		}
+	}
+}