From 5cb877f8c87bfe65d482108975beb6edee086dec Mon Sep 17 00:00:00 2001
From: RKrom <robin@getgreenshot.org>
Date: Sun, 1 Jun 2014 11:25:27 +0200
Subject: [PATCH] Found that the matrix is prepending, which explains why the
 translation needed wrong values.

---
 GreenshotPlugin/Core/Effects.cs | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/GreenshotPlugin/Core/Effects.cs b/GreenshotPlugin/Core/Effects.cs
index 0bec57986..0a5ea4c57 100644
--- a/GreenshotPlugin/Core/Effects.cs
+++ b/GreenshotPlugin/Core/Effects.cs
@@ -214,13 +214,13 @@ namespace Greenshot.Core {
 		public Image Apply(Image sourceImage, Matrix matrix) {
 			RotateFlipType flipType;
 			if (Angle == 90) {
-				matrix.Rotate(90);
-				matrix.Translate(0, -sourceImage.Height);
+				matrix.Rotate(90, MatrixOrder.Append);
+				matrix.Translate(sourceImage.Height, 0, MatrixOrder.Append);
 				flipType = RotateFlipType.Rotate90FlipNone;
 			} else if (Angle == -90 || Angle == 270) {
 				flipType = RotateFlipType.Rotate270FlipNone;
-				matrix.Rotate(-90);
-				matrix.Translate(-sourceImage.Width, 0);
+				matrix.Rotate(-90, MatrixOrder.Append);
+				matrix.Translate(0, sourceImage.Width, MatrixOrder.Append);
 			} else {
 				throw new NotSupportedException("Currently only an angle of 90 or -90 (270) is supported.");
 			}