Fixed rotating elements which are just rectangles, like the enum-label.

Greenshot/Drawing/DrawableContainer.cs

@@ -707,6 +707,18 @@ namespace Greenshot.Drawing {
 			}
 		}
 
+		public virtual void Transform(Matrix matrix) {
+			if (matrix == null) {
+				return;
+			}
+			Point center = new Point(Left + (Width/2), Top + (Height/2));
+			Point[] points = { center };
+			matrix.TransformPoints(points);
+
+			Left = points[0].X - (Width / 2);
+			Top = points[0].Y - (Height / 2);
+		}
+
 		public virtual void Rotate(RotateFlipType rotateFlipType) {
 			// somehow the rotation is the wrong way?
 			int angle = 90;

Greenshot/Drawing/DrawableContainerList.cs

@@ -135,11 +135,7 @@ namespace Greenshot.Drawing {
 			bool modified = false;
 			Invalidate();
 			foreach (var dc in this) {
-				Point[] location = { dc.Location };
+				dc.Transform(matrix);
-				matrix.TransformPoints(location);
-
-				dc.Left = location[0].X;
-				dc.Top = location[0].Y;
 				modified = true;
 			}
 			// Invalidate after

GreenshotPlugin/Interfaces/Drawing/Container.cs

@@ -20,6 +20,7 @@
  */
 using System;
 using System.Drawing;
+using System.Drawing.Drawing2D;
 using System.Drawing.Imaging;
 using System.Windows.Forms;
 using System.ComponentModel;
@@ -87,6 +88,7 @@ namespace Greenshot.Plugin.Drawing {
 		void HideGrippers();
 		void ShowGrippers();
 		void MoveBy(int x, int y);
+		void Transform(Matrix matrix);
 		bool HandleMouseDown(int x, int y);
 		void HandleMouseUp(int x, int y);
 		bool HandleMouseMove(int x, int y);