FSO.Client.UI.Framework.UIElement.CalculateMatrix C# (CSharp) Method

        protected virtual void CalculateMatrix()
        {
            //If we are a child of another UIElement, start with our container's Matrix.
            //Otherwise, assume our matrix is IDENTITY (aka no scale & positioned at 0,0)
            if (_Parent != null)
            {
                _Mtx = _Parent.Matrix.CloneMatrix();
                _ScaleParent = _Parent.Scale;
            }
            else
            {
                _ScaleParent = Vector2.One;
                _Mtx = Matrix2D.IDENTITY;
            }

            //Translate by our x and y coordinates
            _Mtx.Translate(_X, _Y);

            //Scale by our scaleX and scaleY values
            _Mtx.Scale(_ScaleX, _ScaleY);

            //Work out the absolute scale factor for this UIElement
            _Scale = _Mtx.ExtractScaleVector();

            //Because Matrix has changed, that means the inverted matrix is now invalid.
            //Make this null so that next time its requested it gets recalculated
            _InvertedMtx = null;

            //Matrix is no longer dirty :)
            _MtxDirty = false;

            //We cache mouse target positions, because our coordinates have changed these are no longer valid.
            _HitTestCache.Clear();
        }