Align caret on whole pixels.

git-svn-id: svn://svn.sharpdevelop.net/sharpdevelop/trunk@5226 1ccf3a8d-04fe-1044-b7c0-cef0b8235c61

src/Libraries/AvalonEdit/ICSharpCode.AvalonEdit/Editing/CaretLayer.cs

@@ -79,7 +79,7 @@ namespace ICSharpCode.AvalonEdit.Editing
 				                  caretRectangle.Y - textView.VerticalOffset,
 				                  caretRectangle.Width,
 				                  caretRectangle.Height);
-				drawingContext.DrawRectangle(caretBrush, null, PixelSnapHelpers.PixelAlign(r));
+				drawingContext.DrawRectangle(caretBrush, null, PixelSnapHelpers.Round(r));
 			}
 		}
 	}

src/Libraries/AvalonEdit/ICSharpCode.AvalonEdit/Utils/PixelSnapHelpers.cs

@@ -47,6 +47,11 @@ namespace ICSharpCode.AvalonEdit.Utils
 			return new Point(Round(val.X), Round(val.Y));
 		}
 		
+		public static Rect Round(Rect rect)
+		{
+			return new Rect(Round(rect.X), Round(rect.Y), Round(rect.Width), Round(rect.Height));
+		}
+		
 		/// <summary>
 		/// Rounds val to a whole number of pixels.
 		/// </summary>