Add import of polygon from dxf

StructureHelperCommon/Services/Exports/Factories/FileInputDataFactory.cs

@@ -0,0 +1,50 @@
+using StructureHelperCommon.Infrastructures.Exceptions;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace StructureHelperCommon.Services.Exports.Factories
+{
+    public enum FileInputDataType
+    {
+        Csv,
+        Png,
+        Dxf
+    }
+    public static class FileInputDataFactory
+    {
+        public static FileIOInputData GetFileIOInputData(FileInputDataType dataType)
+        {
+            if (dataType == FileInputDataType.Csv)
+            {
+                return new FileIOInputData
+                {
+                    Filter = "csv |*.csv",
+                    Title = "Save in csv File"
+                };
+            }
+            else if (dataType == FileInputDataType.Png)
+            {
+                return new FileIOInputData
+                {
+                    Filter = "png |*.png",
+                    Title = "Save in *.png File"
+                };
+            }
+            else if (dataType == FileInputDataType.Dxf)
+            {
+                return new FileIOInputData
+                {
+                    Filter = "dxf |*.dxf",
+                    Title = "Save in *.dxf File"
+                };
+            }
+            else
+            {
+                throw new StructureHelperException(ErrorStrings.ObjectTypeIsUnknownObj(dataType));
+            }
+        }
+    }
+}