Added support for XPS rendering

QuestPDF/Drawing/DocumentGenerator.cs

@@ -20,6 +20,13 @@ namespace QuestPDF.Drawing
             RenderDocument(canvas, document);
         }
         
+        internal static void GenerateXps(Stream stream, IDocument document)
+        {
+            var metadata = document.GetMetadata();
+            var canvas = new XpsCanvas(stream, metadata);
+            RenderDocument(canvas, document);
+        }
+        
         internal static ICollection<byte[]> GenerateImages(IDocument document)
         {
             var metadata = document.GetMetadata();

QuestPDF/Drawing/PdfCanvas.cs

@@ -4,43 +4,13 @@ using SkiaSharp;
 
 namespace QuestPDF.Drawing
 {
-    internal class PdfCanvas : SkiaCanvasBase
+    internal class PdfCanvas : SkiaDocumentCanvasBase
     {
-        private SKDocument Document { get; }
-
-        public PdfCanvas(Stream stream, DocumentMetadata documentMetadata)
-        {
-            Document = SKDocument.CreatePdf(stream, MapMetadata(documentMetadata));
-        }
-
-        ~PdfCanvas()
-        {
-            Document.Dispose();
-        }
-        
-        public override void BeginDocument()
+        public PdfCanvas(Stream stream, DocumentMetadata documentMetadata) 
+            : base(SKDocument.CreatePdf(stream, MapMetadata(documentMetadata)))
         {
             
         }
-
-        public override void EndDocument()
-        {
-            Canvas.Dispose();
-            
-            Document.Close();
-            Document.Dispose();
-        }
-
-        public override void BeginPage(Size size)
-        {
-            Canvas = Document.BeginPage(size.Width, size.Height);
-        }
-
-        public override void EndPage()
-        {
-            Document.EndPage();
-            Canvas.Dispose();
-        }
         
         private static SKDocumentPdfMetadata MapMetadata(DocumentMetadata metadata)
         {

QuestPDF/Drawing/SkiaDocumentCanvasBase.cs

@@ -0,0 +1,45 @@
+using System.IO;
+using QuestPDF.Infrastructure;
+using SkiaSharp;
+
+namespace QuestPDF.Drawing
+{
+    internal class SkiaDocumentCanvasBase : SkiaCanvasBase
+    {
+        private SKDocument Document { get; }
+
+        public SkiaDocumentCanvasBase(SKDocument document)
+        {
+            Document = document;
+        }
+
+        ~SkiaDocumentCanvasBase()
+        {
+            Document.Dispose();
+        }
+        
+        public override void BeginDocument()
+        {
+            
+        }
+
+        public override void EndDocument()
+        {
+            Canvas.Dispose();
+            
+            Document.Close();
+            Document.Dispose();
+        }
+
+        public override void BeginPage(Size size)
+        {
+            Canvas = Document.BeginPage(size.Width, size.Height);
+        }
+
+        public override void EndPage()
+        {
+            Document.EndPage();
+            Canvas.Dispose();
+        }
+    }
+}

QuestPDF/Drawing/XpsCanvas.cs

@@ -0,0 +1,15 @@
+using System.IO;
+using QuestPDF.Infrastructure;
+using SkiaSharp;
+
+namespace QuestPDF.Drawing
+{
+    internal class XpsCanvas : SkiaDocumentCanvasBase
+    {
+        public XpsCanvas(Stream stream, DocumentMetadata documentMetadata) 
+            : base(SKDocument.CreateXps(stream, documentMetadata.RasterDpi))
+        {
+            
+        }
+    }
+}

QuestPDF/Fluent/GenerateExtensions.cs

@@ -8,6 +8,8 @@ namespace QuestPDF.Fluent
 {
     public static class GenerateExtensions
     {
+        #region PDF
+        
         public static byte[] GeneratePdf(this IDocument document)
         {
             using var stream = new MemoryStream();
@@ -26,6 +28,32 @@ namespace QuestPDF.Fluent
             DocumentGenerator.GeneratePdf(stream, document);
         }
         
+        #endregion
+        
+        public static byte[] GenerateXps(this IDocument document)
+        {
+            using var stream = new MemoryStream();
+            document.GenerateXps(stream);
+            return stream.ToArray();
+        }
+        
+        public static void GenerateXps(this IDocument document, string filePath)
+        {
+            using var stream = new FileStream(filePath, FileMode.Create);
+            document.GenerateXps(stream);
+        }
+
+        public static void GenerateXps(this IDocument document, Stream stream)
+        {
+            DocumentGenerator.GenerateXps(stream, document);
+        }
+        
+        #region XPS
+        
+        #endregion
+
+        #region Images
+
         public static IEnumerable<byte[]> GenerateImages(this IDocument document)
         {
             return DocumentGenerator.GenerateImages(document);
@@ -47,5 +75,7 @@ namespace QuestPDF.Fluent
                 index++;
             }
         }
+
+        #endregion
     }
 }