UnityEditor.VerticalGridWithSplitter.CalcRect C# (CSharp) Method

        public Rect CalcRect(int itemIdx, float yOffset)
        {
            float num = Mathf.Floor((float) (itemIdx / this.columns));
            float num2 = itemIdx - (num * this.columns);
            return new Rect((num2 * (this.itemSize.x + this.horizontalSpacing)) + this.leftMargin, ((num * (this.itemSize.y + this.verticalSpacing)) + this.topMargin) + yOffset, this.itemSize.x, this.itemSize.y);
        }