整理一下项目文件

AIStudio.Wpf.DiagramApp/Models/DiagramDocument.cs

@@ -0,0 +1,57 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Xml;
+using System.Xml.Serialization;
+using AIStudio.Wpf.DiagramDesigner;
+
+namespace AIStudio.Wpf.DiagramApp.Models
+{
+    [XmlRootAttribute(Namespace = DiagramDocument.XMLNS, IsNullable = false)]
+    public class DiagramDocument
+    {
+        [XmlAttribute]
+        public string Title { get; set; }
+
+        [XmlAttribute]
+        public DiagramType DiagramType { get; set; }
+
+        [XmlArray]
+        public List<DiagramItem> DiagramItems { get; set; }
+
+        public const string XMLNS = "http://AIStudio.Wpf.DiagramApp/DesignLayout";
+        private readonly object saveLock = new Object();
+
+        public void Save(FileInfo designFile)
+        {
+            lock (saveLock)
+            {
+
+                FileStream streamToUse;
+                XmlSerializer serializer = new XmlSerializer(typeof(DiagramDocument));
+
+                if (designFile.Exists)
+                {
+                    File.Delete(designFile.FullName);
+                }
+                streamToUse = designFile.Open(FileMode.OpenOrCreate, FileAccess.Write);
+
+                try
+                {
+                    XmlWriterSettings settings = new XmlWriterSettings();
+                    settings.Indent = true;
+                    XmlWriter writer = XmlWriter.Create(streamToUse, settings);
+                    serializer.Serialize(writer, this);
+                }
+                finally
+                {
+                    streamToUse.Close();
+                }
+            }
+        }
+
+    }
+}