public Rectangle getGridCellRangeRect(RadContainer container, int startRow, int startCol, int endRow, int endCol) {
    int[] xs = getGridCellCoords(container, false);
    int[] ys = getGridCellCoords(container, true);
    int[] widths = getGridCellSizes(container, false);
    int[] heights = getGridCellSizes(container, true);
    return new Rectangle(xs[startCol],
                         ys[startRow],
                         xs[endCol] + widths[endCol] - xs[startCol],
                         ys[endRow] + heights[endRow] - ys[startRow]);
  }
public Rectangle getGridCellRangeRect(RadContainer container, int startRow, int startCol, int endRow, int endCol)