Bug 314088 The table row height does not work correctly in PDF
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/nLayout/area/impl/ContainerArea.java
y = ay + localProperties.getMarginTop( );
		}
		else
		{
			x = ax;
			y = ay;
		}
	}
	/**
	 * set allocated height
	 * 
	 * @param aHeight
	 */
	public void setAllocatedHeight( int aHeight )
	{
		if ( hasStyle )
		{
			height = aHeight - localProperties.getMarginBottom( )
					- localProperties.getMarginTop( );
		}
		else
		{
			height = aHeight;
		}
	}
	public int getContentHeight( int allocatedHeight )
	{
		if ( hasStyle )
		{
			return allocatedHeight - localProperties.getPaddingBottom( )