AlphaTab.Rendering.Staves.StaveGroup.BuildBoundingsLookup C# (CSharp) Method

        private void BuildBoundingsLookup(float cx, float cy)
        {
            if (Layout.Renderer.BoundsLookup.IsFinished) return;
            if (_firstStaffInAccolade == null || _lastStaffInAccolade == null) return;

            var visualTop = cy + Y + _firstStaffInAccolade.Y;
            var visualBottom = cy + Y + _lastStaffInAccolade.Y + _lastStaffInAccolade.Height;
            var realTop = cy + Y + _allStaves[0].Y;
            var realBottom = cy + Y + _allStaves[_allStaves.Count - 1].Y + _allStaves[_allStaves.Count - 1].Height;

            var visualHeight = visualBottom - visualTop;
            var realHeight = realBottom - realTop;

            var x = X + _firstStaffInAccolade.X;

            var staveGroupBounds = new StaveGroupBounds();
            staveGroupBounds.VisualBounds = new Bounds
            {
                X = cx,
                Y = cy + Y,
                W = Width,
                H = Height
            };
            staveGroupBounds.RealBounds = new Bounds
            {
                X = cx,
                Y = cy + Y,
                W = Width,
                H = Height
            };
            Layout.Renderer.BoundsLookup.AddStaveGroup(staveGroupBounds);

            var masterBarBoundsLookup = new FastList<MasterBarBounds>();
            for (int i = 0; i < Staves.Count; i++)
            {
                for (int j = 0, k = Staves[i].FirstStaffInAccolade.BarRenderers.Count; j < k; j++)
                {
                    var renderer = Staves[i].FirstStaffInAccolade.BarRenderers[j];

                    if (i == 0)
                    {
                        var masterBarBounds = new MasterBarBounds();
                        masterBarBounds.IsFirstOfLine = renderer.IsFirstOfLine;
                        masterBarBounds.RealBounds = new Bounds
                        {
                            X = x + renderer.X,
                            Y = realTop,
                            W = renderer.Width,
                            H = realHeight
                        };
                        masterBarBounds.VisualBounds = new Bounds
                        {
                            X = x + renderer.X,
                            Y = visualTop,
                            W = renderer.Width,
                            H = visualHeight
                        };
                        Layout.Renderer.BoundsLookup.AddMasterBar(masterBarBounds);
                        masterBarBoundsLookup.Add(masterBarBounds);
                    }

                    renderer.BuildBoundingsLookup(masterBarBoundsLookup[j], x, cy + Y + _firstStaffInAccolade.Y);
                }
            }
        }