Using gestures in MonoGame (and XNA)

I was trying to use this bit of code yesterday, but it didn’t work:

        protected override void Update(GameTime gameTime)
        {
            while (TouchPanel.IsGestureAvailable)
            {
                var gesture = TouchPanel.ReadGesture();
                if (gesture.GestureType == GestureType.FreeDrag)
                {
                    _cue.Rotate(gesture.Delta, GraphicsDevice.Viewport.Bounds);
                }
            }

            base.Update(gameTime);
        }

Why? Because I forgot to enable gestures! This line was all that was missing:

            TouchPanel.EnabledGestures = GestureType.FreeDrag;

EnabledGestures is a flag property so you can enable multiple types of gestures by using bitwise or, like, for example:

 TouchPanel.EnabledGestures = GestureType.FreeDrag | GestureType.Tap;

In my rotate method I simply translate the delta into something more useful, which in my cases are degrees:

        public void Rotate(Vector2 delta, Rectangle viewPortBounds)
        {
            var degreesAroundYAxis = (delta.X / viewPortBounds.Width) * 360;
            var degreesAroundXAxis = (delta.Y / viewPortBounds.Height) * 90;
            Rotation += new Vector3(MathHelper.ToRadians(degreesAroundXAxis), MathHelper.ToRadians(degreesAroundYAxis), 0.0f);

            if (MathHelper.ToDegrees(Rotation.X) < 5.0f)
            {
                Rotation = new Vector3(MathHelper.ToRadians(5.0f), Rotation.Y, Rotation.Z);
            }
        }