882022 - Add Sample for Adding Fallback Image for SVG

Use Cases/Adding-Fallback-Image-for-SVG/Adding-Fallback-Image-for-SVG.sln

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+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.9.34310.174
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Adding-Fallback-Image-for-SVG", "Adding-Fallback-Image-for-SVG\Adding-Fallback-Image-for-SVG.csproj", "{80D27D00-1582-46FC-966E-58B0131F030E}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{80D27D00-1582-46FC-966E-58B0131F030E}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{80D27D00-1582-46FC-966E-58B0131F030E}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{80D27D00-1582-46FC-966E-58B0131F030E}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{80D27D00-1582-46FC-966E-58B0131F030E}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {CAF80E3F-0CD0-4218-9A64-EBC6457337EB}
+	EndGlobalSection
+EndGlobal

Use Cases/Adding-Fallback-Image-for-SVG/Adding-Fallback-Image-for-SVG/Adding-Fallback-Image-for-SVG.csproj

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+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net7.0</TargetFramework>
+    <RootNamespace>Adding_Fallback_Image_for_SVG</RootNamespace>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="SkiaSharp" Version="2.88.8" />
+    <PackageReference Include="Svg.Skia" Version="1.0.0.18" />
+    <PackageReference Include="Syncfusion.XlsIO.Net.Core" Version="25.1.41" />
+  </ItemGroup>
+
+</Project>

Use Cases/Adding-Fallback-Image-for-SVG/Adding-Fallback-Image-for-SVG/Program.cs

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+using Syncfusion.XlsIO;
+using SkiaSharp;
+using Svg.Skia;
+namespace Adding_Fallback_Image_For_SVG
+{
+    class Program
+    {
+        static void Main(string[] args)
+        {
+            using (ExcelEngine excelEngine = new ExcelEngine())
+            {
+                IApplication application = excelEngine.Excel;
+                application.DefaultVersion = ExcelVersion.Xlsx;
+                IWorkbook workbook = application.Workbooks.Create(1);
+                IWorksheet worksheet = workbook.Worksheets[0];
+
+                //Loads an svg image stream
+                FileStream svgStream = new FileStream(@"../../../Data/Image.svg", FileMode.Open);
+
+                //Convert svg stream to png stream
+                Stream pngStream = ConvertSvgStreamToPngStream(svgStream);
+
+                //Add svg pictures in the worksheet
+                worksheet.Pictures.AddPicture(1, 1, svgStream, pngStream, 400, 390);
+
+                //Saving the workbook as stream
+                FileStream stream = new FileStream("Svg.xlsx", FileMode.Create, FileAccess.ReadWrite);
+                workbook.SaveAs(stream);
+                stream.Dispose();
+            }
+        }
+        /// <summary>
+        /// Convert svg stream to png stream using skiasharp
+        /// </summary>
+        /// <param name="svgStream"></param>
+        /// <returns>"pngStream"</returns>
+        public static Stream ConvertSvgStreamToPngStream(Stream svgStream)
+        {
+            //Create a MemoryStream to store the converted PNG
+            MemoryStream pngStream = new MemoryStream();
+
+            //Load SVG image using Skiasharp
+            using (var svg = new SKSvg())
+            {
+                svg.Load(svgStream);
+
+                //Get the size of SVG image
+                var bitmap = new SKBitmap((int)svg.Picture.CullRect.Width, (int)svg.Picture.CullRect.Height);
+                var canvas = new SKCanvas(bitmap);
+
+                //Render SVG to the bitmap
+                canvas.DrawPicture(svg.Picture);
+
+                //Encode the bitmap as PNG and write to the MemoryStream
+                var image = SKImage.FromBitmap(bitmap);
+                image.Encode(SKEncodedImageFormat.Png, 100).SaveTo(pngStream);
+            }
+            return pngStream;
+        }
+    }
+}