code: private static int componentSize(Component component,
              FormSpec formSpec,
              int cellSize,
              FormLayout.Measure minMeasure,
              FormLayout.Measure prefMeasure) {
          if (formSpec == null) {
              return prefMeasure.sizeOf(component);
          } else if (formSpec.getSize() == Sizes.MINIMUM) {
              return minMeasure.sizeOf(component);
          } else if (formSpec.getSize() == Sizes.PREFERRED) {
              return prefMeasure.sizeOf(component);
          } else {  // default mode
              return Math.min(cellSize, prefMeasure.sizeOf(component));
          }
      }
docs: Computes and returns the pixel size of the given component using the given form
  specification, measures, and cell size.
  
  @param component	the component to measure
  @param formSpec	the specification of the component's column/row
  @param minMeasure	the measure for the minimum size
  @param prefMeasure	the measure for the preferred size
  @param cellSize	the cell size
  @return the component size as measured or a constant