Example: RoundedCorners with custom SVG content

Source/QuestPDF.Examples/RoundedCornersExample.cs

@@ -0,0 +1,90 @@
+using System;
+using NUnit.Framework;
+using QuestPDF.Fluent;
+using QuestPDF.Helpers;
+using QuestPDF.Infrastructure;
+
+namespace QuestPDF.Examples;
+
+public class RoundedCornersExample
+{
+    [Test]
+    public void ItemTypes()
+    {
+        Document
+            .Create(document =>
+            {
+                document.Page(page =>
+                {
+                    var roundedRectangle = new RoundedRectangleParameters
+                    {
+                        TopLeftRadius = 5,
+                        TopRightRadius = 10,
+                        BottomRightRadius = 15,
+                        BottomLeftRadius = 20,
+                        FillColor = Colors.Blue.Lighten3
+                    };
+
+                    page.Content()
+                        .Padding(10)
+                        .Shrink()
+                        .Layers(layers =>
+                        {
+                            layers.Layer().Svg(roundedRectangle.GenerateSVG);
+                            layers.PrimaryLayer().Padding(10).Text(Placeholders.Sentence());
+                        });
+                });
+            })
+            .GeneratePdfAndShow();
+    }
+}
+
+public class RoundedRectangleParameters
+{
+    public double TopLeftRadius { get; set; }
+    public double TopRightRadius { get; set; }
+    public double BottomLeftRadius { get; set; }
+    public double BottomRightRadius { get; set; }
+    public string FillColor { get; set; }
+    
+    public string GenerateSVG(Size size)
+    {
+        var maxAllowedRadiusX = size.Width / 2.0;
+        var maxAllowedRadiusY = size.Height / 2.0;
+        
+        TopLeftRadius = Math.Min(TopLeftRadius, Math.Min(maxAllowedRadiusX, maxAllowedRadiusY));
+        TopRightRadius = Math.Min(TopRightRadius, Math.Min(maxAllowedRadiusX, maxAllowedRadiusY));
+        BottomRightRadius = Math.Min(BottomRightRadius, Math.Min(maxAllowedRadiusX, maxAllowedRadiusY));
+        BottomLeftRadius = Math.Min(BottomLeftRadius, Math.Min(maxAllowedRadiusX, maxAllowedRadiusY));
+        
+        var pathData = string.Format(System.Globalization.CultureInfo.InvariantCulture,
+            "M {0},0 " +
+            "H {1} " +
+            "A {2},{2} 0 0 1 {3},{4} " +
+            "V {5} " +
+            "A {6},{6} 0 0 1 {7},{8} " +
+            "H {9} " +
+            "A {10},{10} 0 0 1 {11},{12} " +
+            "V {13} " +
+            "A {14},{14} 0 0 1 {15},0 Z",
+            TopLeftRadius,
+            size.Width - TopRightRadius,
+            TopRightRadius, size.Width, TopRightRadius,
+            size.Height - BottomRightRadius,
+            BottomRightRadius, size.Width - BottomRightRadius, size.Height,
+            BottomLeftRadius,
+            BottomLeftRadius, 0, size.Height - BottomLeftRadius,
+            TopLeftRadius,
+            TopLeftRadius, TopLeftRadius);
+        
+        return string.Format(System.Globalization.CultureInfo.InvariantCulture,
+            "<svg size.Width=\"{0}\" size.Height=\"{1}\" xmlns=\"http://www.w3.org/2000/svg\" " +
+            "viewBox=\"0 0 {0} {1}\">" +
+            "<path d=\"{2}\" fill=\"{3}\" />" +
+            "</svg>",
+            size.Width, size.Height,
+            pathData,
+            FillColor);
+    }
+}
+