Pinta.Core.Document.RotateImage C# (CSharp) Method

        private void RotateImage(double angle)
        {
            var new_size = Layer.RotateDimensions (ImageSize, angle);
            foreach (var layer in UserLayers)
                layer.Rotate (angle, new_size);

            ImageSize = new_size;
            Workspace.CanvasSize = new_size;

            PintaCore.Actions.View.UpdateCanvasScale ();
            Workspace.Invalidate ();
        }