Zooms the image when doing an 'inside rotation'

Former-commit-id: cb58553b092c507ec2b0ec88628ee2f140f25bdf
Former-commit-id: d004bc57d5c645e5b95e75cf3f5890419e2a23e5

src/ImageProcessor/Processors/RotateInside.cs

@@ -83,7 +83,7 @@ namespace ImageProcessor.Processors
         /// <param name="angle">The angle in degrees at which to rotate the image.</param>
         /// <returns>The image rotated to the given angle at the given position.</returns>
         /// <remarks> 
-        /// Based on <see cref="T:ImageProcessor.Processors.Rotate"/>
+        /// Based on the Rotate effect
         /// </remarks>
         private Bitmap RotateImage(Image image, float rotateAtX, float rotateAtY, float angle)
         {
@@ -91,6 +91,8 @@ namespace ImageProcessor.Processors
             Bitmap newImage = new Bitmap(image.Width, image.Height);
             newImage.SetResolution(image.HorizontalResolution, image.VerticalResolution);
 
+            float zoom = Imaging.Rotation.ZoomAfterRotation(image.Width, image.Height, angle);
+
             // Make a graphics object from the empty bitmap
             using (Graphics graphics = Graphics.FromImage(newImage))
             {
@@ -106,6 +108,9 @@ namespace ImageProcessor.Processors
                 // Rotate the image
                 graphics.RotateTransform(angle);
 
+                // Zooms the image to fit the area
+                graphics.ScaleTransform(zoom, zoom);
+
                 // Move the image back
                 graphics.TranslateTransform(-rotateAtX * 2, -rotateAtY * 2);