Move file handling to a different file

Programs/GridProxyGUI/MainWindow.Persistance.cs

@@ -0,0 +1,94 @@
+using System;
+using Gtk;
+using GridProxyGUI;
+using OpenMetaverse.StructuredData;
+using System.IO;
+using System.IO.Compression;
+using System.Text;
+
+
+public partial class MainWindow
+{
+    string SessionFileName;
+
+    void SaveSession()
+    {
+        OSDMap s = new OSDMap();
+        OSDArray array = new OSDArray();
+
+        foreach (object[] row in messages.Messages)
+        {
+            array.Add(((Session)row[0]).Serialize());
+        }
+
+        s["Version"] = "1.0";
+        s["Messages"] = array;
+
+        System.Threading.ThreadPool.QueueUserWorkItem((sync) =>
+        {
+            try
+            {
+                using (var file = File.OpenWrite(SessionFileName))
+                {
+                    using (var compressed = new GZipStream(file, CompressionMode.Compress))
+                    {
+                        using (var writer = new System.Xml.XmlTextWriter(compressed, new UTF8Encoding(false)))
+                        {
+                            writer.Formatting = System.Xml.Formatting.Indented;
+                            writer.WriteStartDocument();
+                            writer.WriteStartElement(String.Empty, "llsd", String.Empty);
+                            OSDParser.SerializeLLSDXmlElement(writer, s);
+                            writer.WriteEndElement();
+                        }
+                    }
+                }
+            }
+            catch { }
+        });
+    }
+
+    void OpenSession(string fileName)
+    {
+        System.Threading.ThreadPool.QueueUserWorkItem((sync) =>
+        {
+            OSD data;
+            try
+            {
+                using (var file = File.OpenRead(fileName))
+                {
+                    using (var compressed = new GZipStream(file, CompressionMode.Decompress))
+                    {
+                        data = OSDParser.DeserializeLLSDXml(compressed);
+                    }
+                }
+            }
+            catch
+            {
+                return;
+            }
+
+            Application.Invoke((sender, e) =>
+            {
+                try
+                {
+                    if (data != null && data is OSDMap)
+                    {
+                        OSDMap map = (OSDMap)data;
+                        OSDArray msgs = (OSDArray)map["Messages"];
+                        foreach (var msgOSD in msgs)
+                        {
+                            var msg = (OSDMap)msgOSD;
+                            var session = Session.FromOSD(msg);
+                            if (session != null)
+                            {
+                                messages.Messages.AppendValues(session);
+                            }
+                        }
+                    }
+                }
+                catch { }
+            });
+        });
+    }
+
+}