BuildReportTool.FileFilterGroup.DrawFiltersAsButtons C# (CSharp) Method

        void DrawFiltersAsButtons(AssetList assetList, float width)
        {
            string styleToUse;

            GUILayout.BeginHorizontal();

            float overallWidth = 0;
            float widthToAdd = 0;
            string label = "";

            styleToUse = GetStyleToUse(assetList.All.Length, _selectedFilterIdx, 0);
            label = "All (" + assetList.All.Length + ")";

            widthToAdd = GUI.skin.GetStyle(styleToUse).CalcSize(new GUIContent(label)).x;

            overallWidth += widthToAdd;

            if (GUILayout.Button(label, styleToUse))
            {
            _selectedFilterIdx = 0;
            }

            if (overallWidth >= width)
            {
            overallWidth = 0;
            GUILayout.EndHorizontal();
            GUILayout.BeginHorizontal();
            }

            if (assetList.PerCategory != null && assetList.PerCategory.Length >= _fileFilters.Length)
            {
            for (int n = 0, len = _fileFilters.Length; n < len; ++n)
            {
                styleToUse = GetStyleToUse(assetList.PerCategory[n].Length, _selectedFilterIdx, n+1);
                label = _fileFilters[n].Label + " (" + assetList.PerCategory[n].Length + ")";

                widthToAdd = GUI.skin.GetStyle(styleToUse).CalcSize(new GUIContent(label)).x;

                if (overallWidth + widthToAdd >= width)
                {
                    overallWidth = 0;
                    GUILayout.EndHorizontal();
                    GUILayout.BeginHorizontal();
                }

                overallWidth += widthToAdd;

                if (GUILayout.Button(label, styleToUse))
                {
                    _selectedFilterIdx = n+1;
                }

            }

            styleToUse = GetStyleToUse(assetList.PerCategory[assetList.PerCategory.Length-1].Length, _selectedFilterIdx, assetList.PerCategory.Length);

            label = "Unknown (" + assetList.PerCategory[assetList.PerCategory.Length-1].Length + ")";
            widthToAdd = GUI.skin.GetStyle(styleToUse).CalcSize(new GUIContent(label)).x;
            if (overallWidth + widthToAdd >= width)
            {
                overallWidth = 0;
                GUILayout.EndHorizontal();
                GUILayout.BeginHorizontal();
            }

            if (GUILayout.Button(label, styleToUse))
            {
                _selectedFilterIdx = assetList.PerCategory.Length;
            }
            }

            GUILayout.EndHorizontal();
        }