Bug 144402 Report title didn't appear on PDF
engine/org.eclipse.birt.report.engine.emitter.pdf/src/org/eclipse/birt/report/engine/emitter/pdf/PDFEmitter.java
contentByte.moveTo(startX, startY);
		contentByte.setLineWidth(width);
		contentByte.lineTo(endX, endY);        
		contentByte.setColorStroke(color);
		contentByte.stroke();
	}
	
	/**
	 * draw the background color at the contentByteUnder of the pdf
	 * @param color			the color to be drawed
	 * @param x				the start X coordinate
	 * @param y				the start Y coordinate
	 * @param width			the width of the background dimension
	 * @param height 		the height of the background dimension
	 */
	private void drawBackgroundColor(Color color, float x, float y, float width, float height)
	{
		if (null == color)
		{
			return;
		}
		cbUnder.saveState();
		cbUnder.setColorFill(color);
		cbUnder.rectangle(x, y-height, width, height);
		cbUnder.fill();
		cbUnder.restoreState();
	}
	
	/**
	 * draw the backgound image at the contentByteUnder of the pdf with the given offset