添加Avalonia项目的demo

Serein.Workbench.Avalonia/Extension/LineExtension.cs

@@ -0,0 +1,55 @@
+using Avalonia.Media;
+using Serein.Library;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Serein.Workbench.Avalonia.Extension
+{
+
+    /// <summary>
+    /// 线条颜色
+    /// </summary>
+    public static class LineExtension
+    {
+        /// <summary>
+        /// 根据连接类型指定颜色
+        /// </summary>
+        /// <param name="currentConnectionType"></param>
+        /// <returns></returns>
+        /// <exception cref="Exception"></exception>
+        public static SolidColorBrush ToLineColor(this ConnectionInvokeType currentConnectionType)
+        {
+            return currentConnectionType switch
+            {
+                ConnectionInvokeType.IsSucceed => new SolidColorBrush(Color.Parse("#04FC10")), // 04FC10 & 027E08
+                ConnectionInvokeType.IsFail => new SolidColorBrush(Color.Parse("#F18905")),
+                ConnectionInvokeType.IsError => new SolidColorBrush(Color.Parse("#FE1343")),
+                ConnectionInvokeType.Upstream => new SolidColorBrush(Color.Parse("#4A82E4")),
+                ConnectionInvokeType.None => new SolidColorBrush(Color.Parse("#56CEF6")),
+                _ => throw new Exception(),
+            };
+        }
+        /// <summary>
+        /// 根据连接类型指定颜色
+        /// </summary>
+        /// <param name="connection"></param>
+        /// <returns></returns>
+        /// <exception cref="Exception"></exception>
+        public static SolidColorBrush ToLineColor(this ConnectionArgSourceType connection)
+        {
+            return connection switch
+            {
+
+                ConnectionArgSourceType.GetPreviousNodeData => new SolidColorBrush(Color.Parse("#56CEF6")), // 04FC10 & 027E08
+                ConnectionArgSourceType.GetOtherNodeData => new SolidColorBrush(Color.Parse("#56CEF6")),
+                ConnectionArgSourceType.GetOtherNodeDataOfInvoke => new SolidColorBrush(Color.Parse("#56CEF6")),
+                _ => throw new Exception(),
+            };
+        }
+
+    }
+
+}