Bug 315050 [Automation][Regression]Image size is different from golden file when preview as xls
engine/org.eclipse.birt.report.engine.emitter.prototype.excel/src/org/eclipse/birt/report/engine/emitter/excel/layout/ExcelLayoutEngine.java
maxCol = MAX_COL_OFFICE2007;
		}
	}
	public XlsContainer getCurrentContainer( )
	{
		return (XlsContainer) containers.peek( );
	}
	public Stack<XlsContainer> getContainers( )
	{
		return containers;
	}
	public void setPageStyle( IStyle style )
	{
		XlsContainer topContainer = containers.peek( );
		topContainer.setStyle( StyleBuilder.createStyleEntry( style ) );
	}
	
	public void addTable( IContainerContent content, ColumnsInfo table,
			ContainerSizeInfo size )
	{
		IStyle style = content.getComputedStyle( );
		XlsContainer currentContainer = getCurrentContainer( );
		ContainerSizeInfo parentSizeInfo = currentContainer.getSizeInfo( );
		int[] columnStartCoordinates = splitColumns( table, parentSizeInfo );
		createTable( table, style, currentContainer, columnStartCoordinates );
	}
	protected int[] splitColumns( ColumnsInfo columnsInfo,
			ContainerSizeInfo parentSizeInfo )
	{
		int startCoordinate = parentSizeInfo.getStartCoordinate( );