Add polygon shape

StructureHelperCommon/Models/Shapes/Logics/PolygonShapeUpdateStrategy.cs

@@ -0,0 +1,48 @@
+using StructureHelperCommon.Infrastructures.Interfaces;
+using StructureHelperCommon.Services;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Shapes;
+
+namespace StructureHelperCommon.Models.Shapes
+{
+    public class PolygonShapeUpdateStrategy : IUpdateStrategy<IPolygonShape>
+    {
+        public void Update(IPolygonShape targetObject, IPolygonShape sourceObject)
+        {
+            CheckObject.IsNull(sourceObject);
+            CheckObject.IsNull(targetObject);
+            if (ReferenceEquals(targetObject, sourceObject)) { return; }
+
+            // Update simple properties
+            targetObject.IsClosed = sourceObject.IsClosed;
+
+            // Replace vertices
+            targetObject.Clear();
+            foreach (var vertex in sourceObject.Vertices)
+            {
+                // Copy the underlying point into a new vertex
+                Vertex newVertex = GetVertexClone(vertex);
+                targetObject.AddVertex(newVertex);
+            }
+        }
+
+        private static Vertex GetVertexClone(IVertex vertex)
+        {
+            Point2D newVertexPoint = new(Guid.NewGuid())
+            {
+                X = vertex.Point.X,
+                Y = vertex.Point.Y
+            };
+            Vertex newVertex = new(Guid.NewGuid())
+            {
+                Point = newVertexPoint
+            };
+            return newVertex;
+        }
+    }
+
+}