Save and load AvalonDock layout

ILSpy/Docking/DockLayoutSettings.cs

@@ -0,0 +1,50 @@
+using System;
+using System.IO;
+using System.Linq;
+using System.Xml;
+using System.Xml.Linq;
+using Xceed.Wpf.AvalonDock.Layout.Serialization;
+
+namespace ICSharpCode.ILSpy.Docking
+{
+	public class DockLayoutSettings
+	{
+		private string rawSettings;
+
+		public bool Valid => rawSettings != null;
+
+		public DockLayoutSettings(XElement element)
+		{
+			if ((element != null) && element.HasElements) {
+				rawSettings = element.Elements().FirstOrDefault()?.ToString();
+			}
+		}
+
+		public XElement SaveAsXml()
+		{
+			try {
+				return XElement.Parse(rawSettings);
+			} catch (Exception) {
+				return null;
+			}
+		}
+
+		public void Deserialize(XmlLayoutSerializer serializer)
+		{
+			if (!Valid)
+				return;
+
+			using (StringReader reader = new StringReader(rawSettings)) {
+				serializer.Deserialize(reader);
+			}
+		}
+
+		public void Serialize(XmlLayoutSerializer serializer)
+		{
+			using (StringWriter fs = new StringWriter()) {
+				serializer.Serialize(fs);
+				rawSettings = fs.ToString();
+			}
+		}
+	}
+}

ILSpy/ILSpy.csproj

@@ -139,6 +139,7 @@
       <DependentUpon>DebugSteps.xaml</DependentUpon>
     </Compile>
     <Compile Include="Docking\DockingHelper.cs" />
+    <Compile Include="Docking\DockLayoutSettings.cs" />
     <Compile Include="ILSpyTraceListener.cs" />
     <Compile Include="DecompilationOptions.cs" />
     <Compile Include="ExtensionMethods.cs" />

ILSpy/MainWindow.xaml.cs

@@ -45,6 +45,7 @@ using ICSharpCode.TreeView;
 using Microsoft.Win32;
 using OSVersionHelper;
 using Xceed.Wpf.AvalonDock.Layout;
+using Xceed.Wpf.AvalonDock.Layout.Serialization;
 
 namespace ICSharpCode.ILSpy
 {
@@ -91,11 +92,8 @@ namespace ICSharpCode.ILSpy
 			decompilerTextView = App.ExportProvider.GetExportedValue<DecompilerTextView>();
 			mainPane.Content = decompilerTextView;
 
-			//todo
-			//if (sessionSettings.SplitterPosition > 0 && sessionSettings.SplitterPosition < 1) {
-			//	leftColumn.Width = new GridLength(sessionSettings.SplitterPosition, GridUnitType.Star);
-			//	rightColumn.Width = new GridLength(1 - sessionSettings.SplitterPosition, GridUnitType.Star);
-			//}
+			sessionSettings.DockLayout.Deserialize(new XmlLayoutSerializer(DockManager));
+
 			sessionSettings.FilterSettings.PropertyChanged += filterSettings_PropertyChanged;
 
 			InitMainMenu();
@@ -1017,12 +1015,7 @@ namespace ICSharpCode.ILSpy
 			sessionSettings.ActiveTreeViewPath = GetPathForNode(treeView.SelectedItem as SharpTreeNode);
 			sessionSettings.ActiveAutoLoadedAssembly = GetAutoLoadedAssemblyNode(treeView.SelectedItem as SharpTreeNode);
 			sessionSettings.WindowBounds = this.RestoreBounds;
-			//todo
-			//sessionSettings.SplitterPosition = leftColumn.Width.Value / (leftColumn.Width.Value + rightColumn.Width.Value);
-			//if (topPane.Visibility == Visibility.Visible)
-			//	sessionSettings.TopPaneSplitterPosition = topPaneRow.Height.Value / (topPaneRow.Height.Value + textViewRow.Height.Value);
-			//if (bottomPane.Visibility == Visibility.Visible)
-			//	sessionSettings.BottomPaneSplitterPosition = bottomPaneRow.Height.Value / (bottomPaneRow.Height.Value + textViewRow.Height.Value);
+			sessionSettings.DockLayout.Serialize(new XmlLayoutSerializer(DockManager));
 			sessionSettings.Save();
 		}
 

ILSpy/SessionSettings.cs

@@ -24,6 +24,7 @@ using System.Text;
 using System.Text.RegularExpressions;
 using System.Windows;
 using System.Xml.Linq;
+using ICSharpCode.ILSpy.Docking;
 
 namespace ICSharpCode.ILSpy
 {
@@ -56,6 +57,8 @@ namespace ICSharpCode.ILSpy
 			this.TopPaneSplitterPosition = FromString((string)doc.Element("TopPaneSplitterPosition"), 0.3);
 			this.BottomPaneSplitterPosition = FromString((string)doc.Element("BottomPaneSplitterPosition"), 0.3);
 			this.SelectedSearchMode = FromString((string)doc.Element("SelectedSearchMode"), SearchMode.TypeAndMember);
+
+			this.DockLayout = new DockLayoutSettings(doc.Element("DockLayout"));
 		}
 
 		public event PropertyChangedEventHandler PropertyChanged;
@@ -83,6 +86,8 @@ namespace ICSharpCode.ILSpy
 		public double SplitterPosition;
 		public double TopPaneSplitterPosition, BottomPaneSplitterPosition;
 
+		public DockLayoutSettings DockLayout { get; private set; }
+
 		public void Save()
 		{
 			XElement doc = new XElement("SessionSettings");
@@ -103,6 +108,12 @@ namespace ICSharpCode.ILSpy
 			doc.Add(new XElement("BottomPaneSplitterPosition", ToString(this.BottomPaneSplitterPosition)));
 			doc.Add(new XElement("SelectedSearchMode", ToString(this.SelectedSearchMode)));
 
+			var dockLayoutElement = new XElement("DockLayout");
+			if (DockLayout.Valid) {
+				dockLayoutElement.Add(DockLayout.SaveAsXml());
+			}
+			doc.Add(dockLayoutElement);
+
 			ILSpySettings.SaveSettings(doc);
 		}