Expose JointStyle and EndCapStyle on IPen

Author: jtjackson

src/ImageSharp.Drawing/Processing/IPen.cs

@@ -24,5 +24,15 @@ public interface IPen
         /// Gets the stoke pattern.
         /// </summary>
         ReadOnlySpan<float> StrokePattern { get; }
+
+        /// <summary>
+        /// Gets the stroke joint style
+        /// </summary>
+        public JointStyle StrokeJoint { get; }
+
+        /// <summary>
+        /// Gets the endcap style
+        /// </summary>
+        public EndCapStyle EndCap { get; }
     }
 }

src/ImageSharp.Drawing/Processing/Pen.cs

@@ -74,5 +74,11 @@ public Pen(IBrush brush, float width)
 
         /// <inheritdoc/>
         public ReadOnlySpan<float> StrokePattern => this.pattern;
+
+        /// <inheritdoc/>
+        public JointStyle StrokeJoint { get; }
+
+        /// <inheritdoc/>
+        public EndCapStyle EndCap { get; }
     }
 }

src/ImageSharp.Drawing/Processing/Processors/Drawing/DrawPathProcessor.cs

@@ -49,7 +49,7 @@ public IImageProcessor<TPixel> CreatePixelSpecificProcessor<TPixel>(Configuratio
             // The global transform is applied in the FillPathProcessor.
             IPath outline = this.Path
                 .Transform(Matrix3x2.CreateTranslation(0.5F, 0.5F))
-                .GenerateOutline(this.Pen.StrokeWidth, this.Pen.StrokePattern);
+                .GenerateOutline(this.Pen.StrokeWidth, this.Pen.StrokePattern, this.Pen.StrokeJoint, this.Pen.EndCap);
 
             return new FillPathProcessor(this.Options, this.Pen.StrokeFill, outline)
                 .CreatePixelSpecificProcessor(configuration, source, sourceRectangle);

src/ImageSharp.Drawing/Processing/Processors/Text/DrawTextProcessor{TPixel}.cs

@@ -306,7 +306,7 @@ public void EndGlyph()
                         }
                         else
                         {
-                            path = path.GenerateOutline(this.Pen.StrokeWidth, this.Pen.StrokePattern);
+                            path = path.GenerateOutline(this.Pen.StrokeWidth, this.Pen.StrokePattern, this.Pen.StrokeJoint, this.Pen.EndCap);
                         }
 
                         renderData.OutlineMap = this.Render(path);

src/ImageSharp.Drawing/Shapes/OutlinePathExtensions.cs

@@ -61,6 +61,19 @@ public static IPath GenerateOutline(this IPath path, float width, float[] patter
         public static IPath GenerateOutline(this IPath path, float width, ReadOnlySpan<float> pattern, bool startOff)
             => GenerateOutline(path, width, pattern, startOff, JointStyle.Square, EndCapStyle.Butt);
 
+        /// <summary>
+        /// Generates a outline of the path with alternating on and off segments based on the pattern.
+        /// </summary>
+        /// <param name="path">the path to outline</param>
+        /// <param name="width">The final width outline</param>
+        /// <param name="pattern">The pattern made of multiples of the width.</param>
+        /// <param name="jointStyle">The style to render the joints.</param>
+        /// <param name="patternSectionCapStyle">The style to render between sections of the specified pattern.</param>
+        /// <returns>A new path representing the outline.</returns>
+        /// <exception cref="ClipperException">Couldn't calculate offset.</exception>
+        public static IPath GenerateOutline(this IPath path, float width, ReadOnlySpan<float> pattern, JointStyle jointStyle, EndCapStyle patternSectionCapStyle)
+            => GenerateOutline(path, width, pattern, false, jointStyle, patternSectionCapStyle);
+
         /// <summary>
         /// Generates a outline of the path with alternating on and off segments based on the pattern.
         /// </summary>