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
* Creates the top-most set of layers on the given layered pane.
	 * 
	 * @param layeredPane
	 *            the parent for the created layers
	 */
	protected void createLayers( LayeredPane layeredPane )
	{
		layeredPane.add( createGridLayer( ), GRID_LAYER );
		layeredPane.add( getPrintableLayers( ), PRINTABLE_LAYERS );
		layeredPane.add( new FreeformLayer( ), HANDLE_LAYER );
		layeredPane.add( new GuideLayer( ), GUIDE_LAYER );
	}
	/**
	 * Creates a {@link GridLayer grid}. Sub-classes can override this method
	 * to customize the appearance of the grid. The grid layer should be the
	 * first layer (i.e., beneath the primary layer) if it is not to cover up
	 * parts on the primary layer. In that case, the primary layer should be
	 * transparent so that the grid is visible.
	 * 
	 * @return the newly created GridLayer
	 */
	protected GridLayer createGridLayer( )
	{
		GridLayer grid = new TableGridLayer( this );
		grid.setOpaque( false );
		return grid;
	}
	/**
	 * Resets size of column.
	 *