private static int getNewColSpan(final RadComponent c, final int colSpanDelta) {
    int gapCount = c.getParent().getGridLayoutManager().getGapCellCount();
    return c.getConstraints().getColSpan() + colSpanDelta * (gapCount+1);
  }
private static int getNewColSpan(final RadComponent c, final int colSpanDelta)