Bug 182664 Cross Tab: resize column doesn't behave correctly
When user drag to resize a column, it supposes to effect on the left column only. Currently when user drag to resize column, many other columns are resized too, unexpectedly.
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/internal/ui/editors/schematic/editparts/TableEditPart.java
* @param relativePos
	 *            The direction to indicate inserting rows above or below.
	 * @param colNumbers
	 *            The column numbers of the origin selected column(s).
	 */
	
	public void insertColumns( final int relativePos, final int[] colNumbers )
	{
		int colCount = colNumbers.length;
		try
		{
			if ( relativePos < 0 )
			{ 
				getTableAdapter( ).insertColumns( -colCount, colNumbers[0] );
			}
			else
			{
				getTableAdapter( ).insertColumns( colCount,
						colNumbers[colCount - 1] );
			}
		}
		catch ( SemanticException e )
		{
			ExceptionHandler.handle( e );
		}
		
	}
	/**
	 * merge the selection cell
	 */