Bug 204235 Background image can not be shown when preview as PPT [1205]
engine/org.eclipse.birt.report.engine.emitter.ppt/src/org/eclipse/birt/report/engine/emitter/ppt/PPTWriter.java
* on the PPT. If the line-style is NOT set before invoking this method,
	 * "solid" will be used as the default line-style.
	 * 
	 * @param startX
	 *            the start X coordinate of the line
	 * @param startY
	 *            the start Y coordinate of the line
	 * @param endX
	 *            the end X coordinate of the line
	 * @param endY
	 *            the end Y coordinate of the line
	 * @param width
	 *            the lineWidth
	 * @param color
	 *            the color of the line
	 */
	private void drawRawLine( double startX, double startY, double endX,
			double endY, double width, Color color, String lineStyle )
	{
		
		print( "<v:line id=3D\"" + ( ++shapeCount ) + "\"" ); 
		print( " style=3D'position:absolute' from=3D\"" + startX + "pt," + startY + "pt\"" ); 
		print( " to=3D\"" + endX + "pt," + endY + "pt\"" );
		print( " strokecolor=3D\"#" + Integer.toHexString( color.getRGB( ) & 0x00ffffff ) + "\"" ); 
		print( " strokeweight=3D\"" + width + "pt\"" ); 
		if ( lineStyle.equalsIgnoreCase( "dashed" ) )
		{
			println( "<v:stroke dashstyle=3D\"dash\"/>" );
		}
		else if ( lineStyle.equalsIgnoreCase( "dotted" ) )