Bug 179913 Meter Chart color by categories with null values does not work correctly [0001]
Description: Meter Chart color by categories with null values does not work correctly. Build number: 2.2.0.v20070329-1055 Steps to reproduce: 1. New a Meter Chart with values as follows: Moto, null; Nokia, 58; null, 66; Benq, null. 2. In "Format Chart" tab, select "Series" node, choose "Color by Categories". 3. Preview. Expected result: 1. The needle which shows the second value should take the second color. 2. There should be four in the legend area and the third name is null. Actual result: 1. The needle which shows the second value should take the first color. 2. There should be three in the legend area. Error log: N/A
chart/org.eclipse.birt.chart.engine/src/org/eclipse/birt/chart/computation/LegendBuilder.java
{
			int[] pia = new int[dup.size( )];
			for ( int i = 0; i < pia.length; i++ )
			{
				pia[i] = ( (Integer) dup.get( i ) ).intValue( );
			}
			return pia;
		}
	}
	/**
	 * Returns the size computed previously.
	 * 
	 * @return
	 */
	public final Size getSize( )
	{
		return sz;
	}
	/**
	 * Checks if current label text should use ellipsis to shorten the length.
	 * 
	 * @return a double array contains the new string width and height metrics,
	 *         e.g. [dNewWidth, dNewHeight]
	 * @throws ChartException
	 */
	private double[] checkEllipsisText( double dExceedingSpace,
			double dOriginalTextWidth, IDisplayServer xs, ITextMetrics itm,
			Label la, double dEllipsisWidth, double maxWrappingSize )
			throws ChartException
	{