Bug 168042 [regression]Background position doesn't work in pdf generated using BIRT PDF emitter.[0300]
[regression]Background position doesn't work in pdf generated using BIRT PDF emitter.[0300] Build number: 2.1.2.v20061214 Steps to reproduce: 1.open the attached report and preview in PDF 2.select the style and set the vertical position of background to 50% 3.preview in PDF Expected result: effects in step 1 and 3 are different Actual result: the same effects Error log: N/A
engine/org.eclipse.birt.report.engine.emitter.pdf/src/org/eclipse/birt/report/engine/emitter/pdf/PDFEmitter.java
{
			return pageHeight - pdfMeasure(layoutY);
		}
		
		/**
		 * Converts the left X coordinate of an Area from layout 
		 * to the left X coordinate in PDF
		 * @param layoutX 		the X coordinate specified from layout
		 * @return				the PDF X coordinate
		 */
		private float layoutAreaX2PDF(int layoutX)
		{
			return pdfMeasure(layoutX);
		}
		
		/**
		 * Converts the top Y coordinate of an Area from layout to the start Y coordinate in pdf. 
		 * to the bottom Y coordinate in PDF
		 * @param layoutY 		the Y coordinate specified from layout
		 * @param areaHeight	the height of the area whose coordinate need to be converted.
		 * 						To text area, the height is from the top of the text to
		 * 						the text's baseline.
		 * @return				the PDF Y coordinate
		 */
		private float layoutAreaY2PDF (int layoutY, int areaHeight)
		{
			return pageHeight - pdfMeasure(layoutY) - pdfMeasure(areaHeight);
		}
		
		/**